DE102013221867A1 - Data entry device for motor vehicles and method for entering data with a data input device in a motor vehicle - Google Patents

Abstract

The invention relates to a data input device for motor vehicles, comprising an input device and a control device, wherein the control device is connected to a driving situation sensor which generates a signal describing the driving situation. The control device is designed such that, depending on the driving situation, it alters a reaction time with which further input can be made to an input on the input device, and the reaction time is extended upon reaching a predetermined driving situation.

Description

The present invention relates to a data input device for motor vehicles and method for inputting data to a data input device in a motor vehicle.

Modern motor vehicles have a variety of different devices and facilities that can be set individually by a user of the motor vehicle. These devices and devices include, but are not limited to, devices that enhance comfort, such as ventilation and air conditioning, electrically adjustable seats, massage seats, electrically adjustable exterior mirrors, audio and / or video, devices that assist a vehicle operator such as a navigation system, devices that assist the vehicle driver to safely participate in the traffic, such as an automatic distance radar or lane change warning device, and devices that serve communication, such as a car phone or an Internet modem. Motor vehicles therefore often have a data input device with which the parameters of a plurality of different devices can be set, their functions selected and operated, and these devices switched on and off. This data input device usually comprises an input device and a display device in the form of a screen. The input device is often designed as a knob. The knob itself can be designed as a rotary push button, which is both rotatable and represents a push button. It may also be provided in addition to the knob separate push buttons. As an input device can also serve in addition to the knob, the screen of the display device, the surface is designed touch-sensitive.

It is desirable that the vehicle driver is distracted as little as possible by the operation of the data input device from the road. Therefore, a head-up display (HUD) has been developed, with which information is displayed in the windshield, so that the driver can recognize this information or read without having to look away from the road.

With this head-up display, various information, such as destination information of a navigation system, traffic information of a traffic information system, telephone numbers or general data available via the Internet, such as stock market prices, are displayed.

The invention has for its object to further develop a data input device for motor vehicles and a method for entering data with a data input device in a motor vehicle such that the driving safety is increased.

The object is achieved by a data input device for motor vehicles with the features of claim 1 and by a method for entering data with a data input device having the features of claim 13. Advantageous embodiments of the invention are specified in the respective subclaims.

The data input device for motor vehicles according to the invention comprises an input device and a control device, wherein the control device is connected to a driving situation sensor which generates a signal describing the driving situation, wherein the control device is designed such that it changes a reaction time depending on the driving situation, with which a Input to the input device, a further input is possible, and the reaction time is extended upon reaching a predetermined driving situation. This reaction time can also be referred to as the response time.

An operator can enter after inputting a first input only after the reaction time or the response time, another input.

With the data input device according to the invention is thus the reaction time or the response time to an input, with which a further input is possible, changed depending on the driving situation and extended, especially in a demanding driving situation. A demanding driving situation is at high speed, winding road and / or unfavorable traffic or weather conditions, such as heavy traffic, fog, snow or heavy rain.

The inventor of the present invention has carried out a study with several hundred test persons as vehicle drivers, with which it should be determined how fast the reaction time of successive inputs or the response time should be on a data input device for motor vehicles. It was surprisingly found that the more demanding the driving situation, the lower the requirement on the part of the driver for the reaction time or the response time. Rather, it has become It has been found that in demanding driving situations, it is even advantageous if the response time to an input to which the next entry can be entered is extended. If the driver of the vehicle experiences that he can not input the individual inputs of a sequence of inputs in direct succession, he directs his attention to the lane between the individual inputs. As a result, the driving or steering of the motor vehicle is considerably safer.

During the reaction time or response time, the control device preferably switches the input device inactive. This can be done, for example, that the operation of buttons or the knob is ineffective, the knob is locked or the touch-sensitive screen does not accept inputs.

In particular, the data input device has a display device, and the control device is designed such that a display on the display device is controlled in dependence on input data to the input device and the display on the display device is changed to an input on the input device only after the reaction time has elapsed that the entered information is displayed. As a result, the operator can recognize the information entered by him on the display device and make a further input only after the reaction time or response time has expired. During the reaction time, a typical wait signal, such as an hourglass, is preferably displayed on the display device. Such a wait signal makes the operator aware that he has to wait with the next input.

The driving situation sensor is for example a tachometer, wherein the signal describing the driving situation is the speed signal of the motor vehicle.

The signal describing the driving situation is referred to below as the driving situation signal.

As a driving situation sensor, a sensor may be provided which generates a signal with which a set at a transmission ratio is displayed, with a larger translation corresponds to a greater speed of the motor vehicle or a more demanding driving situation. Also can be provided as a driving situation sensor one of a variety of other sensors, such as a speed sensor that generates a signal with the speed of an engine of the motor vehicle is displayed in a suitable period of time, a wheel speed sensor that generates a signal with the number of Reproduces or revolutions of a wheel of the motor vehicle in an appropriate period of time, or an acceleration sensor which generates a signal with which the acceleration of the motor vehicle is reproduced in one or more specific directions.

Also, by combining a plurality of signals from the same or different such sensors, the driving situation signal may be generated, such as a sensor generating a signal representative of a gear ratio, which is combined with the signal of a speed sensor generates a signal with which the speed of the motor vehicle engine is displayed in a suitable period of time. The signal generated thereby corresponds to the signal of a tachometer. Another example is the combination of the signals from multiple wheel speed sensors, which not only determines the speed of the vehicle, but also whether the vehicle is traveling straight or cornering on a track.

The driving situation signal can also be known from devices already present on the motor vehicle, such as, for example, a driving stability device known for example under the names ABS (Anti-lock Braking System), DSC (Dynamic Stability Control) or ESP (Electronic Stability Program) on the market, a camera system, a radar device and / or a navigation system are combined or adopted or one or more of their sensor signals for the combination of this signal are adopted. For example, by means of a camera system or a radar device, the relative speed of the motor vehicle to other objects can be determined. Or, for example, the speed of the motor vehicle can be determined by means of a camera system, a radar device or a navigation system. In the automatic assessment of the driving situation, the road, traffic, weather and / or visibility depending on the ambient brightness can be considered. A camera system present on the motor vehicle or a navigation system present in the motor vehicle provides, for example, the current course of the road, the driving situation on a narrow road with many curves being considerably more demanding than on a wide, straight highway. Furthermore, the traffic flow and the traffic density can be taken into account in the automatic assessment of the driving situation, which are received either on the basis of traffic information or by means of a camera system or radar device are detected on the motor vehicle. Furthermore, the distance to surrounding objects (to other motor vehicles, pedestrians, traffic signs, track boundaries, etc.) can be taken into account in the automatic assessment of the driving situation, which is detected either by means of a camera system, a radar, a range finder or a laser scanner on the motor vehicle. Furthermore, the weather conditions in the automatic assessment of the driving situation can be considered. The corresponding weather information can be detected with appropriate sensors on the motor vehicle (camera system, temperature sensor, rain sensor, brightness sensor, air pressure sensor, etc.) and / or determined by means of weather data via the Internet. Furthermore, the visibility as a function of the time of day can be taken into account in the automatic assessment of the driving situation. An on-vehicle clock or a central processor device or a satellite navigation system (eg GPS) provides, for example, the time of day, at night the driving situation is much more demanding than during the day. The brightness data of the motor vehicle environment can also be detected with corresponding sensors on the motor vehicle (camera system, brightness sensor, etc.).

In the automatic assessment of the driving situation, the cognitive load and / or the cognitive resilience of the driver can be taken into account. The stress value of the vehicle driver can be determined, for example, by detecting his heartbeat or his heartbeat (heartbeat sensor on the steering wheel, radar system in the motor vehicle) and / or his pupil responsiveness or his pupil reflexes (camera system). The fatigue of the driver can be determined by detecting his heartbeat or heartbeat (heartbeat sensor on the steering wheel, radar system in the motor vehicle), his Pupillenreaktionsfähigkeit or his pupil reflexes (camera system) and / or the position of his eyelids (camera system). The distance traveled and / or the journey time since the start of the journey or since the last break of the driver, which are also a measure of the fatigue of the driver can be detected with appropriate sensors in the vehicle (speedometer, clock, navigation system). The control device is preferably designed such that the extension of the reaction time or the response time is approximately proportional to the speed of the motor vehicle or proportional to a ratio of a transmission, which can be used in each case as a measure of the driving situation. In this case, of course, the further information on the road, traffic and / or weather conditions can be taken into account, with which the measure of the driving situation can be weighted. The extension of the reaction time can be continuously changed with increasing demands on the driving situation or also step by step.

In the presence and activation of a driver assistance system, the degree of support of the driver assistance system can form the driving situation signal, since the degree of support of the driver assistance system can correspondingly simplify the driver's driving situation. An example of this is an adaptive cruise control or an adaptive cruise control. In such a system, the vehicle driver is assisted during acceleration and braking, so that the driving situation for the vehicle driver a simpler and thus the value of the driving situation signal is lower.

The control device can determine how long the driver is looking at the road or not at the road (for example with a camera system and / or an eye tracker). This is a measure of attention. Depending on the measured attention and the driving situation, an input for a certain time can be allowed or further inputs for a certain time can be prevented. In particular, it can be measured that the vehicle driver looks at the road for a predetermined period of time (for example 1 s to 5 s) before he is allowed to make another entry.

Furthermore, such attention values can be estimated by the control device on the basis of further parameters, such as, for example, heartbeat, pupil responsiveness or pupil reflexes, position of the eyelids, etc.

The driving situation signal may be modified by a measured and / or an estimated driver's attention, which then represents an attention request signal. The attention demand signal describes the attention of the vehicle driver required for the driving situation or how urgent the driver of the vehicle must pay attention to the traffic situation. The controller then delays the input in proportion to this attention request signal.

Furthermore, the control device can include in this attention request signal the degree of assistance of driver assistance systems, such as a lane keeping system. The more the vehicle driver is assisted by a driver assistance system, the lower the need for his attention with respect to the guidance of the motor vehicle and the smaller the value of the attention request signal.

Inversely proportional to the attention demand signal behaves a secondary activity signal, which describes the extent to which the driver may devote other tasks in addition to the vehicle steering or leadership.

The lower limit for the extended reaction time or response time is preferably 0.1 s or 0.2 s or 0.3 s or 0.4 s and in particular 0.5 s. The upper limit for the extended reaction time or response time is preferably 1 s or 2 s or 3 s or 4 s or 5 s.

Preferably, an optical or acoustic signal is output after expiration of the reaction time or response time, whereby the readiness of the data input device for receiving a further input is signaled. The optical signal is preferably a change in brightness and / or a change in color. Such visual changes can be detected by peripheral vision so that the vehicle operator can recognize them without having to divert his attention from the roadway. The change in brightness and / or the change in color may be performed on the display device. However, it can also be done with another lighting device in the vehicle, for example, with an interior lighting or lighting the dashboard.

The output of a signal at the end of the reaction time can also be effected by a mechanically generated signal, such as an electric motor arranged on the steering wheel, on an input device and / or in a seat, which generates a vibration. By detecting the vibration, the vehicle operator or operator is notified that the response time has expired and the data input device is ready to accept another input.

It can also be output during the course of the reaction time, a preferably optical signal, so that the operator is signaled. The optical signal is preferably a change in the brightness and / or a change in color after the input of data. After the reaction time has elapsed, the control unit sets the brightness and / or color set before the input of the data. The change in brightness and / or the change in color may be performed on the display device. However, it can also be done with another lighting device in the vehicle, for example, with an interior lighting or lighting the dashboard.

The input device may be a rotary knob, preferably a rotary / pushbutton and / or a touch-sensitive screen. The display device can be designed as a screen and / or as a head-up display.

Preferably, the control device of the data input device is designed such that it is determined via suitable sensors, whether the vehicle driver or the front passenger operates the input device. Such a sensor is for example a light barrier, a laser light barrier, a camera system, a brightness sensor, an ultrasonic sensor or a capacitive sensor. Also, a combination of the signals of several such sensors can be evaluated by the control device of the data input device in order to be able to reliably recognize the operator. The input to the input device by the passenger can be done without lengthening the reaction time or the response time. Only the input to the input device by the vehicle driver is delayed by extending the reaction time.

The data input device may also have two separate input devices, wherein an input device for the vehicle driver and the other input device for the front passenger is provided. The input to the input device for the passenger can be done without lengthening the reaction time or the response time. Only the input to the input device for the vehicle driver is delayed by extending the reaction time.

Non-driving-relevant or driving-relevant inputs can be made at the input device. Non-driving relevant inputs are not necessary for driving the motor vehicle. These are for example navigation, communication, entertainment or comfort. Driving-relevant inputs have an influence on the driving condition of the motor vehicle. These are directly related to driving or guiding the motor vehicle.

Preferably, the control device of the data input device is designed such that only the response time or the response time for displaying non-driving inputs, such as destination inputs of a navigation system, telephone numbers, inputs to an audio system or a video system, inputs to a system for providing traffic data , Settings of a dynamic profile of the Motor vehicle engine, settings of the power consumption profile of an automotive electrical engine, settings on the chassis, etc. is extended. Driving relevant inputs, such as turning on and off driving lights, settings on mirrors, on and off and settings on a system for controlling the vehicle speed, etc. are entered without delay of the reaction time or the response time. The control device of the data input device can be designed such that predetermined inputs are prevented from a certain further driving situation. From a very demanding driving situation, for example at very high speed (> 130 km / h to 210 km / h), narrow winding road, bad weather and traffic conditions, and / or night driving, etc. can enter non-driving data be completely stopped. This is especially true for operating a telephone, retrieving data from the Internet and entering a destination on the navigation system. In such a demanding driving situation then only the input of the language can be allowed or the input can be made possible via the input device only after braking the motor vehicle.

Preferably, all inputs can be allowed without delay up to a certain, low speed (about 2 to 5 km / h). Only in the range above this low speed are predetermined inputs delayed by extending the reaction time.

• a) Eingeben von Daten an einer Eingabeeinrichtung,
• b) Bestimmen der Fahrsituation,
• c) Bestimmen einer Reaktionszeit nach Maßgabe der Fahrsituation, mit welcher eine weitere Eingabe möglich ist, und
• d) Ansteuern der Eingabeeinrichtung zur Eingabe weiterer Daten nach Ablauf der Reaktionszeit seit dem Eingeben der Daten im Schritt a) Die Schritte a) und b) können in der Reihenfolge ihrer Abarbeitung auch vertauscht oder gleichzeitig ausgeführt werden. Die Erfindung wird nachfolgend beispielhaft anhand der Zeichnungen erläutert. Die Zeichnungen zeigen in:

A further aspect of the present invention relates to a method for entering data in a motor vehicle, in particular with the data input device explained above. The method comprises the steps:

• a) inputting data to an input device,
• b) determining the driving situation,
• c) determining a reaction time in accordance with the driving situation, with which a further input is possible, and
• d) activating the input device for inputting further data after expiration of the reaction time since the inputting of the data in step a). The steps a) and b) can also be reversed or executed simultaneously in the order of their execution. The invention will be explained below by way of example with reference to the drawings. The drawings show in:

1 a rough-schematically simplified representation of a motor vehicle with a data input device and with sensors for detecting a driving situation, wherein for better visualization, the roof, parts of the body and the vehicle windows, except the windshield are omitted,

2 a plurality of electrical devices coupled via a data bus including a data input device,

3A . 3B Input devices for data with operating sensors,

4 a rough-simplified schematic representation of a portion of a road with several vehicles in plan view,

5 essential steps of a method for entering data in a motor vehicle, and

6 essential steps of an embodiment of a method for entering data in a motor vehicle.

A motor vehicle 1 has a data input device 2 on, in response to a driving situation, a reaction time or response time can be changed, with which on an input a further input is possible ( 1 . 2 ). The car 1 has at least one sensor with which the driving situation of the motor vehicle 1 is detected.

In a first embodiment is a tachometer 3 Such a sensor for detecting the driving situation of the motor vehicle 1 , The speedometer 3 is configured to generate a signal proportional to the speed at which the motor vehicle is traveling 1 emotional. This speed signal represents a driving situation signal according to the present invention.

The speedometer 3 is on the output side of a transmission 4 of the motor vehicle 1 arranged. The speedometer 3 is designed as incremental rotary encoder or rotary encoder (generally rotary encoder).

The data input device 2 ( 2 ) has a control device 5 on. The control device 5 is with the speedometer 3 connected. The control device 5 is preferably a central processor device, which is on the motor vehicle 1 is provided.

The connection between the speedometer 3 and the controller 5 via a data bus 6 , such as via a CAN bus. The control device 5 is configured to transmit data and / or signals over the data bus 6 can receive and / or send. Data is transmitted over the data bus as digital signals. In particular, the control device 5 over the data bus 6 that from the speedometer 3 received speed signal received. Via the data bus 6 can the controller 5 also data and / or signals from the motor vehicle 1 arranged to receive further sensors and / or devices. This can be advantageous because the devices data and / or signals from already on the vehicle 1 arranged sensors process and / or provide or these data and / or signals via the data bus 6 can send.

The data input device 2 has as an input device a rotary push button 7 and an output device as a screen 8th on.

The rotary push button 7 and the screen 8th are with the control device 5 over the data bus 6 connected. The rotary push button 7 and / or the screen 8th but also directly or exclusively with the control device 5 be connected.

The rotary push button 7 has a knob 7.1 and one or more buttons 7.2 on. The rotary push button 7 is centered in the vehicle 1 arranged such that a vehicle driver or a passenger, so an operator can operate it and designed so that data can be entered at him. The input of data is carried out by turning the rotary knob 7.1 and pressing one or more of the keys 7.2 , The control device 5 can input data from the rotary push button 7 receive.

The screen 8th is centered in the vehicle 1 above the rotary push button 7 arranged such that the vehicle driver and the front passenger can see this and designed so that data can be displayed on it. For example, these data may include a navigation destination, a telephone number, a chassis setting of the motor vehicle 1 or one by the motor vehicle 1 be constant speed. The control device 5 controls the screen 8th such that this data is on the screen 8th are displayed. The screen 8th can be designed to output warning messages as text messages or pictograms.

The screen 8th can also be located next to the speedometer and / or from the perspective of the driver of the vehicle behind the steering wheel. It can also be designed as a head-up display. In particular, such display elements are suitable for short text messages and / or warning messages.

Other devices 9 are with the data entry device 2 and in particular with the control device 5 over the data bus 6 connected. The devices 9 preferably have central processor devices or are formed with these. The control device 5 is designed to receive data from the devices 9 can receive and / or send to these.

These devices 9 are a navigation system 1.9 , a car phone 9.2 , a suspension adjustment system 3.9 and a vehicle speed control system 4.9 (Cruise control). The navigation system 1.9 , the car phone 9.2 and the suspension adjustment system 3.9 receive non-driving relevant inputs or data from the controller 5 while the system for regulating the vehicle speed 4.9 driving-relevant inputs or data from the control device 5 receives.

The following is the function of the data input device 2 explained.

The rotary push button 7 accepts first data entered by the operator. These input first data are from the rotary push button 7 over the data bus 6 to the controller 5 which receives this data.

Thereafter, the controller receives 5 over the data bus 6 from the speedometer 3 the signal, which is proportional to the speed at which the motor vehicle 1 emotional. The control device 5 determines one of two driving situations based on this speed signal. The one, slow Driving situation is one in which the speed is less than or equal to a threshold. The other, fast driving situation is one where the speed is greater than this threshold. The threshold is, for example, 5 km / h.

When the controller 5 has detected the slow driving situation, then it delays further inputs on the rotary pushbutton 7 Not. This allows the operator to turn the knob 7 immediately enter further data. The control device 5 controls the screen in the slow driving situation 8th such that the entered data is displayed immediately.

When the controller 5 has recognized the fast driving situation, then it delays further inputs on the rotary push button 7 at a fixed time value. This time value is for example 1 s. The delay around this time value is a reaction time or response time. The control device 5 does not respond to further entries on the rotary pushbutton during the course of this reaction time or response time 7 by typing further, via the data bus 6 discards received data immediately. After expiry of the reaction time or response time, the control device responds 5 Again, by not discarding this data. The control device preferably controls 5 in the fast driving situation the screen 8th such that the entered data is displayed only after the reaction time or response time has elapsed.

By delaying the further inputs on the rotary pushbutton 7 and possibly the expenses on the screen 8th by the control device 5 In the fast driving situation, the driver of the vehicle draws his attention to the road between the individual inputs, whereby the driving or steering of the motor vehicle is considerably safer.

The control device 5 determined after a further input on the rotary pushbutton 7 again the driving situation and reacts accordingly.

Detects the controller 5 that the data is completely entered, then sends this data to the appropriate devices 9 ,

Receives the controller 5 from the devices 9 over the data bus 6 data to be displayed, then controls the screen 8th such that this data is displayed.

Instead of rejecting the rotary-push-button 7 received data upon prolonging the reaction time or response time, the controller 5 at the beginning of the reaction time or response time the rotary pushbutton 7 such that it does not send any inputs during the course of the reaction time or response time. After the reaction time or response time has elapsed, the control device controls 5 the turn-button 7 such that it again inputs via the data bus 6 sends.

Also, the control device 5 the turn-button 7 such that it is blocked during the course of the reaction time or response time. For this purpose, the rotary push button 7 for example, one or more electromechanical devices (not shown) for blocking the knob 7.1 and / or the buttons 7.2 on. Due to the blockade no further input of the operator is possible. After expiry of the reaction time or response time, the control device lifts 5 the blockade of the rotary push button 7 so that the operator can enter more data. The noise caused by blocking or removing the blockage of the rotary push button 7 may cause the operator to acoustically indicate that the entry is on the rotary pushbutton 7 blocked or is possible again.

Instead of the rotary pushbutton 7 or in addition to the rotary pushbutton 7 may also be the screen 8th be formed as an input device. This may, for example, have a touch-sensitive surface.

The control device preferably controls 5 the screen 8th at the beginning of the reaction time or response time such that on the screen 8th an optical signal is displayed as a waiting signal. The wait signal is for example an hourglass, a progress bar, a change of color and / or a change of the brightness on the screen 8th , After the reaction time or response time has elapsed, the control device controls 5 the screen 8th such that the original display is restored and, if necessary, the entered data is displayed.

Alternatively, the controller controls 5 the screen 8th after the reaction time or response time so on that on the screen 8th an optical signal is displayed as an input signal. The input signal is for example a short-term, possibly repetitive representation of an input symbol, a momentary change of color and / or a momentary change of the brightness on the screen 8th , Such a brief representation is recognized by the operator with peripheral vision. Short term means 1 to 5 s.

Also, the control device 5 one or more lamps connected to it 10 such that an optical signal is output as a wait signal or as an input signal. The bulbs 10 are on a dashboard (not shown) of the motor vehicle 1 arranged so that they can be seen by the operator. A light source 10 is for example a light-emitting diode (LED) and a lighting of the dashboard or a lighting on the dashboard. The optical signal is a change in the color and / or the brightness of the light source 10 , The control device 5 controls the bulbs 10 for outputting a wait signal in such a way that a change in color and / or brightness is visible at the beginning of the reaction time or response time; after the reaction time or response time has elapsed, the control device changes 5 the color and / or brightness of the bulb 10 back to the original value. The control device 5 controls the bulbs 10 for outputting an input signal such that a short-term change in color and / or brightness is visible after the reaction time or response time has elapsed.

To output an acoustic signal as an input signal controls the controller 5 a speaker connected to it 11 in such a way that such a signal is output after expiration of the reaction time or response time. The speaker 11 is in the vehicle 1 arranged so that its acoustic output is heard by the operator. The speaker 11 For example, an electromagnetic speaker or a piezoelectric buzzer.

The control device 5 may also output a vibration signal as an input signal. For this purpose, it controls an electromagnetic drive connected to it 12 such that it vibrates after the reaction time or response time. Preferably, the electromagnetic drive 12 at the turn-button 7 arranged. Alternatively, the electromagnetic drive 12 on the steering wheel (not shown) of the motor vehicle 1 and / or in the seat of a seat (not shown) in the motor vehicle 1 be arranged.

The control device 5 can also be designed such that it detects more than two different driving situations based on the speed signal and reacts accordingly. For example, it recognizes one of exactly three driving situations. Two of these driving situations, the slow and the fast driving situation, have already been described above. For example, a third driving situation is a high speed driving situation where the speed is greater than a second threshold. The second threshold is, for example, 130 km / h.

The controller distinguishes the fast driving situation from the high speed driving situation by comparing the speed value with the second threshold.

When the controller 5 has detected the high-speed driving situation, then it does not respond to further inputs on the rotary push-button 7 by typing further, via the data bus 6 discards received data immediately. The control device 5 determines the driving situation repeatedly until it recognizes one of the other two driving situations, the slow or the fast driving situation. Only then does it receive further input data from the rotary pushbutton 7 ,

Alternatively, the controller recognizes 5 Based on the speed signal one of several driving situations and determines a stepwise adapted response time or response time. For example, in one in the controller 5 existing memory speed values for the determination of the respective driving situation and associated response times or response times be stored.

The control device 5 can also determine the reaction time or response time proportional to the driving situation signal, such as proportional to the speed of the vehicle 1 , For example, the controller determines 5 in the fast driving situation at a speed of the motor vehicle of 6 km / h, the delayed reaction time or response time as 0.1 s, and at a maximum speed of the motor vehicle 1 the response time or response time is 5.0 s. For the range between these two speeds, the controller calculates 5 one to the speed of the motor vehicle 1 proportional, in particular linearly proportional, reaction time or response time within the range between 0.1 s and 5.0 s. The value of the reaction time or response time thus behaves proportional to the speed of the motor vehicle 1 , ie at a higher speed of the motor vehicle 1 the reaction time or response time increases linearly.

The value of the reaction time or response time can be determined by the control device 5 also be determined non-linear proportional. For example, it calculates this value based on an exponential function of the speed of the motor vehicle 1 ,

A further advantageous embodiment of the control device 5 relates to recognizing or distinguishing between non-driving relevant and driving relevant inputs and their corresponding responses thereto. For example, the control device 5 be formed so that it does not delay further inputs and / or blocked in driving-relevant inputs or possibly not delay the associated expenses, regardless of the detected driving situation.

If the controller 5 is designed such that it distinguishes non-driving-relevant and driving-relevant inputs and can detect the high-speed driving situation, then it can for non-driving relevant inputs in the high-speed driving an error message on the screen 8th or at another output device adapted thereto, such as a head-up display, to alert the operator that no such input is permitted in this driving situation. The error message may be from the controller 5 when a different driving situation is recognized or after a certain time has elapsed.

The control device 5 can also be designed such that it receives one or more driving situation signals and from the driving situation before entering data on the rotary push button 7 and / or parallel to entering data on the rotary pushbutton 7 certainly. This is advantageous if determining the driving situation requires more complex computing operations with higher computational load. This can ensure that the control device 5 when entering data on the rotary pushbutton 7 by the operator has already recognized the driving situation and thus can perform the corresponding operations without delay.

This is also advantageous for the control device 5 the ad on the screen 8th in such a way that after detecting the high-speed driving situation described above, the menu entries necessary for the input of non-driving-relevant data are deactivated. This can be done, for example, by dimming, hiding, changing the color and / or changing the font of the menu entries. The inactive menu items indicate to the operator that entry of non-driving data is denied. The control device 5 activates the menu entries again after recognizing a different driving situation.

In a second embodiment, one or more of the wheel speed sensors 13 as a sensor for detecting the driving situation of the motor vehicle 1 educated. The wheel speed sensors 13 are on the axles of wheels 14 of the motor vehicle 1 arranged. The wheel speed sensors 13 are designed to produce a signal which is proportional to the speed at which the wheel is moving 14 at which the respective wheel speed sensor 13 is arranged, moved. These signals indicate the speed of each wheel 14 of the motor vehicle 1 in a suitable period of time again, wherein the respective signal is proportional to the rotational speed or angular velocity of the respective wheel 14 is. The wheel speed sensors 13 are over the data bus 6 with the control device 5 connected. However, you can also directly or exclusively with the control device 5 be connected or you can directly or exclusively with one of the other devices 9 , for example an anti-lock system (not shown) connected to the controller 5 over the data bus 6 connected is.

Wheel speed sensors are incremental rotary encoders or rotary encoders. For a measurement of the rotational speed and thus the rotational speed of a wheel of a vehicle, for example, magnetic, mechanical or opto-electronic methods are used in a wheel speed sensor. In particular, wheel speed sensors are often already present for the operation of various driving safety devices of a motor vehicle. The signal output by a wheel speed sensor is approximately proportional to the speed of the vehicle. Since the signals of a plurality of wheel speed sensors, which are mounted on the same axis slightly different when cornering a motor vehicle, it is possible to determine by combining these signals, whether the vehicle is driving on a route straight or in a curve. From these differences, the curvature of the motor vehicle 1 traveled trajectory are determined. The amounts of the bends are averaged over a predetermined driving time and thus receive a signal which reflects the "curvature" of the route. The predetermined travel time, which is averaged over, is for example in the range of 10 seconds to 2 minutes. The combination of such a curvature signal and a further signal for the driving situation, such as the speed, the engine speed, etc., results in a modified with respect to the route course driving situation signal. Hereby, driving situations on straight highways can be distinguished from driving situations on narrow, winding roads.

The curvature signal can also be generated using other sensors. For example, with one or more acceleration sensors 15 , which on the motor vehicle 1 are arranged, signals are generated, with which the acceleration of the motor vehicle 1 is reproduced. These acceleration signals are proportional to the acceleration of the respective acceleration sensor 15 in its preferred direction. By combining the signals of several such acceleration sensors 15 , which are arranged at right angles to each other, the acceleration values of the acceleration sensors 15 and thus of the motor vehicle 1 be determined in all three dimensions. This can be used to determine whether the motor vehicle is accelerating or decelerating (and thus whether it is traveling or standing at constant speed), whether it is turning on a track (and thus whether it is moving or standing still), and whether it is going uphill or downhill (and thus whether it is moving or resting on one level).

Acceleration sensors are inertial sensors. For a measurement of the acceleration, for example, electronic, magnetic or mechanical methods are used in an acceleration sensor. For example, the inertial force acting on a test mass is determined by the acceleration sensor. The acceleration sensors are often already present, for example, for operating an active suspension system of a motor vehicle. In particular, acceleration sensors find use in the triggering device of an airbag, which is a safety device in motor vehicles.

One averages the amounts of the lateral accelerations for a predetermined driving time and thus obtains a curvature signal. The predetermined travel time, which is averaged over, is for example in the range of 10 seconds to 2 minutes.

If the values of the longitudinal acceleration are continuously summed or integrated, a speed signal is obtained.

If the positive or negative values of the longitudinal acceleration are averaged for the predetermined driving time, a signal is obtained which indicates the degree of acceleration or deceleration of the motor vehicle 1 reproduces. This degree depends, for example, on the route characteristics and the traffic flow.

At the very least, a high degree of deceleration places increased demands on the driver's attention.

The combination of several such, by the evaluation of the acceleration sensors 15 obtained signals, possibly in combination with another signal for the driving situation, results in respect of the route and the attention request to the driver modified driving situation signal. Not only driving situations on straight highways can be distinguished from driving situations on narrow, winding roads, but also driving situations with slow or liquid traffic flow.

The data input device 2 , the control device 5 , the data bus 6 and the screen 8th have already been described in the first embodiment. Therefore, only the differences that are important for this second exemplary embodiment will be described below.

The control device 5 is with the wheel speed sensors 13 or with the acceleration sensors 15 over the data bus 6 connected. The control device 5 is designed such that via the data bus 6 that of the wheel speed sensors 13 or from the acceleration sensors 15 generated signal can receive

The data input device 2 has as input devices a rotary push button 16 for the driver and a turn-button 17 for the passenger, which with the control device 5 over the data bus 6 are connected. The rotary push buttons 16 . 17 but also directly or exclusively with the control device 5 be connected.

The rotary push button 16 has a knob 1.16 and one or more buttons 2.16 on, the turn-button 17 has a knob 1.17 and one or more buttons 2.17 on. The rotary push button 16 is on the driver's side in the vehicle 1 arranged such that when used properly only the driver can serve this. The rotary push button 17 is on the passenger side in the vehicle 1 arranged such that when used properly only the passenger can operate this. The rotary push buttons 16 . 17 are designed so that data can be entered on them. The input Data is executed by turning the knob 1.16 . 1.17 and pressing one or more of the keys 2.16 . 2.17 , The control device 5 can input data from the rotary push buttons 16 . 17 receive.

As the control device 5 can tell if the driver is on the rotary push button 16 or the passenger on the rotary pushbutton 17 Enter data, it can respond accordingly, as described below.

Be on the rotary push button 16 Entered data, the controller responds 5 as described in the first embodiment. But be on the rotary push button 17 Entered data, the controller delays or blocks the input or the output on the screen 8th not, ie the passenger can, regardless of the driving situation at any time data on the rotary push button 17 without response time or response time, and the corresponding outputs are immediately displayed 8th displayed.

To distinguish between the input of the driver and the passenger, the data input device 2 as input device also a rotary pushbutton 7 , as described in the first embodiment, which has additional sensors as operating sensors 18 having ( 3A ). The operating sensors 18 are with the control device 5 over the data bus 6 connected. But you can also directly or exclusively with the control device 5 be connected.

The operating sensors 18 are formed, shaped and arranged so that they detect whether the driver or the passenger on the rotary push button 7 Enters or operates data. For example, the operating sensors 18 a light barrier, a laser light barrier, a camera system, a brightness sensor, an ultrasonic sensor or a capacitive sensor. Also, a combination of the signals of several such sensors by the control device 5 be evaluated in order to recognize the operator safely.

If the screen 8th is designed as an input device, so the operating sensors 18 also on the screen 8th be arranged ( 3B ). Signals or combinations of signals from a plurality of other sensors may serve as a driving situation signal or modify a driving situation signal. Some of these sensors and their possible contribution to a driving situation signal are described below.

The sensors described below are with the control device 5 over the data bus 6 connected. However, you can also directly or exclusively with the control device 5 be connected or you can directly or exclusively with one of the other devices 9 be connected, which with the control device 5 over the data bus 6 connected is.

Transmission sensors generate an analog signal with discrete stages or a digital signal corresponding to the stages, the value of the signal corresponding to the setting or the selected transmission ratio. For example, acoustic, magnetic, mechanical or opto-electronic methods are used to measure the transmission setting. In particular, transmission sensors for the driving dynamics of a motor vehicle are important because it can be monitored, for example, in which gear or transmission, the transmission is currently located and thus settings of a motor vehicle engine can be adjusted accordingly.

A transmission sensor 19 who is on the gearbox 4 is arranged, generates a signal with which a set ratio of the transmission 4 is reproduced. On the one hand corresponds to a larger translation of the transmission 4 a greater speed or a more demanding driving situation, on the other hand corresponds to a smaller gear ratio of the transmission 4 a lower speed or a less demanding driving situation.

Speed sensors are incremental encoders or rotary encoders. For a measurement of the rotational speed of a vehicle engine, for example, acoustic, magnetic, mechanical or opto-electronic methods are used in a rotational speed sensor. They are often present in a motor vehicle for operating engine management. Their signals are used to adjust setting variables of a motor vehicle engine to the respective load situation. In particular, speed sensors are important to the operation of various safety systems or driving stability devices of a motor vehicle, known for example under the names DSC (Dynamic Stability Control) or ESP (Electronic Stability Program) on the market.

A speed sensor 20 located at the input side of the transmission 4 (And thus on the output side of an automotive engine (not shown)) is arranged, generates a signal with which the rotational speed of the motor vehicle engine is displayed in a suitable period of time. On the one hand corresponds to a higher speed of the motor vehicle engine in a selected transmission setting a greater speed or a more demanding driving situation, on the other hand corresponds to a lower speed of the motor vehicle engine in a selected transmission setting a lower speed or a less demanding driving situation.

One on the vehicle 1 arranged camera system, which comprises at least one camera can be configured as a driving situation sensor. Preferably, this camera system comprises several cameras 21 . 22 , which on the motor vehicle 1 are arranged so that three-dimensional calculations are possible ( 4 ).

Preferably, the cameras 21 . 22 directed forward, so that the area in front of the vehicle can be recorded, since this area is relevant for the subsequent evaluation of the driving situation. It is convenient to use these cameras 21 . 22 as far as possible above the vehicle 1 to arrange so that the field of view of the camera extends over low obstacles away and so, for example, the road can be better detected. The cameras 21 . 22 are for example left and right at the top just behind a windshield 23 arranged. It is advantageous to the viewing range of the cameras 21 . 22 to extend to an area that is not just the road ahead of the motor vehicle 1 but also objects adjacent to the road surface, such as oncoming motor vehicles, in the same direction on adjacent lanes driving vehicles, pedestrians 27 , Road Signs 28 , Barriers 29 and / or road markers (not shown), etc. Preferably, the cameras are 21 . 22 designed so that they can identify the objects mentioned.

Preferably, the axis orientations of the cameras run 21 . 22 not parallel, but slightly inclined to each other. As a result, each takes a slightly different perspective. This can be from the generated data of the cameras 21 . 22 the position of each detected object relative to the motor vehicle 1 calculate in three-dimensional space.

Furthermore, with the cameras 21 . 22 also the weather influences (eg sunshine, fog, rain, snow, hail, etc.) are recognized. Since a camera is an optoelectronic system, it can be determined by means of the images generated by the camera, for example by an image analysis device, whether predominantly the sun shines, it is foggy, or rain or snow or hail falls. For example, a camera produces clear images in the sunshine and a foggy white-greyish semi-transparent colored image, since then the transparency of the ambient air decreases. Rain, snow or hail can be determined, for example, by determining the falling speed and the reflectance of the objects corresponding to them (raindrops, snowflakes, hailstones, etc.).

Furthermore, through the cameras 21 . 22 the brightness of the environment and thus the visibility as a function of the time of day (eg day, night, dusk) are determined. The advantage here is the use of integrated in a camera brightness measurement. During the day, the camera generates images with daylight profile and correspondingly high brightness values. At night predominantly dark gray to black images are generated in which at best light from lighting equipment (headlights, taillights, street lamps, traffic lights, illuminated traffic signs, etc.), reflected light from traffic signs or reflectors, or the light of celestial bodies (moon, stars, etc.). ) are recognizable. Therefore, the brightness values of such images are relatively low. In the dusk phases of the sunrise and sunset, the brightness values of the images are in a middle range. These effects can be determined by means of the images generated by the camera, for example, by an image analysis device.

The cameras 21 . 22 generate a signal with which the relative speed or relative speed and / or distance of the motor vehicle to other objects (eg motor vehicles, pedestrians 27 , Road signs 28 , Barriers 29 Road markings, traffic flow, traffic density, weather conditions (eg sunshine, fog, rain, snow, hail, etc.) and / or the ambient brightness as a function of the time of day (eg Day, night, dusk).

A radar device 24 which is on the motor vehicle 1 is arranged, may be formed as a driving situation sensor. Preferably, the radar device 24 directed forward, so that the area in front of the vehicle can be scanned, as this area is decisive for the subsequent evaluation of the driving situation. The radar device 24 is outside, for example, in the front region of the motor vehicle 1 arranged. Advantageously, it is the detection range of the radar 24 to extend to an area that is not just the road ahead of the motor vehicle 1 but also objects adjacent to the road surface, such as oncoming motor vehicles, in the same direction on adjacent lanes driving vehicles, pedestrians 27 , Road Signs 28 and / or barriers 29 , Etc.

Simple radars measure with radio waves the distance to one or more objects. Thus, the position of each detected object relative to the motor vehicle can be determined from the generated data of a radar device 1 calculate in three-dimensional space. As a result, over the course over time of the change in position of a detected object, its relative speed to the motor vehicle 1 be determined. By means of the radar signature of a detected object, the type of object can be identified, for example, vehicles, pedestrians 27 , Road Signs 28 and barriers 29 apart.

Preferably, the radar device 24 a specially designed by the Doppler radar device, such as a modulated continuous wave radar, since such radars are designed to perform not only the distance to objects, but also in addition speed measurements on objects, without having to perform the aforementioned three-dimensional calculations. In this case, the relative speed of a detected object to the radar device 24 determined. The advantage here is that the temporal resolution of the relative velocity measurement is better than that of the three-dimensional calculation. A further advantage is that a radar device designed according to the Doppler method, with a corresponding adaptation, can be designed to detect weather data. Not only can the radar device determine the distance, intensity and type of precipitation, but with appropriate radar devices even wind can be detected.

The radar device 24 generates a signal indicating the relative speed and / or distance of the motor vehicle 1 to other objects (eg motor vehicles, pedestrians 27 , Road signs 28 , Barriers 29 , etc.), the course of the road, the traffic flow, the traffic density and / or the weather conditions (eg fog, rain, snow, hail, wind, etc.).

One on the vehicle 1 arranged laser scanner 25 can be designed as a driving situation sensor. Preferably, the laser scanner 25 on top of the motor vehicle 1 arranged, for example, outside on the roof. It is advantageous the detection range of the laser scanner 25 to extend to an area that is not just the road ahead of the motor vehicle 1 but also objects adjacent to the road surface, such as oncoming motor vehicles, in the same direction on adjacent lanes driving vehicles, pedestrians 27 , Road Signs 28 and / or barriers 29 , Etc.

Laser scanners use laser beams to determine the distance to objects in three-dimensional space. In this way, the position of each detected object relative to the motor vehicle can be determined from the generated data of the laser scanner 1 to calculate. The type of object can be determined by three-dimensional processing of the signals of the laser scanner.

Preferably, the laser scanner 25 an imaging laser scanner, as such is designed to determine not only the distance to objects, but also in addition the intensity of their surface reflections. It is advantageous that the nature of the object can be better determined by means of these surface reflections.

The laser scanner 25 generates a signal indicating the removal of the motor vehicle 1 to other objects (eg motor vehicles, pedestrians 27 , Road signs 28 , Barriers 29 , etc.), the course of the road, the traffic flow and / or the traffic density are reproduced.

One on the vehicle 1 arranged rangefinder 26 can be designed as a driving situation sensor. Preferably, the rangefinder 26 directed forward, so that the area in front of the vehicle can be scanned, as this area is decisive for the subsequent evaluation of the driving situation. The rangefinder 26 is outside, for example, in the front region of the motor vehicle 1 arranged. It is advantageous to the detection range of the rangefinder 26 to extend to an area that is not just the road ahead of the motor vehicle 1 but also objects adjacent to the road surface, such as oncoming motor vehicles, in the same direction on adjacent lanes driving vehicles, pedestrians 27 , Road Signs 28 and / or barriers 29 , Etc.

Rangefinders work according to the methods of laser triangulation or laser interferometry. This can be from the data generated by the rangefinder 26 the position of each detected object relative to the motor vehicle 1 calculate in three-dimensional space.

The rangefinder 26 generates a signal indicating the removal of the motor vehicle 1 to other objects (eg motor vehicles, pedestrians 27 , Road signs 28 , Barriers 29 etc.), the course of the road, the traffic flow and / or the traffic density are reproduced.

Using three-dimensional calculations of the data of the camera system, which the cameras 21 . 22 includes, the radar device 24 , the laser scanner 25 and / or the rangefinder 26 let yourself be in front of the motor vehicle 1 determining traffic conditions, such as traffic flow, traffic density and the course of the road. By the three-dimensional calculations, the distance and / or the relative speed of the motor vehicle 1 to other objects.

The removal of the motor vehicle 1 to a preceding vehicle, combined with the value of the speed of the motor vehicle 1 , a measure of the claim to the driving situation. The smaller the distance at a given speed, the more demanding is the driving situation. It is advantageous to have a determined distance to a vehicle traveling in front with a value for the braking distance of the motor vehicle 1 to compare at its given speed. The result of this comparison can be included in the evaluation of the driving situation.

The course of the road can be determined on the basis of the calculated positions of the detected traffic signs and / or barriers. The course of the road is a measure of the demands placed on the driving situation. For example, on a narrow road with many bends, the driving situation is much more demanding than on a wide, straight-ahead highway.

The on the vehicle 1 arranged navigation system 1.9 can be designed as a driving situation sensor.

Navigation systems determine the current road with the help of GPS signals and a database in which geodata are stored. This database can be located, for example, on a motor vehicle on a mobile or it is accessed via an existing on the motor vehicle Internet modem (not shown). Furthermore, navigation systems may, for example, be designed in such a way that they receive traffic data representing the traffic flow and / or the traffic density via the Internet modem and / or weather data representing the weather conditions along a driving route. With the determined position data, a navigation system can determine the speed of a vehicle in which it is arranged, and approximately determine the ambient brightness with a time transmitted via the GPS signals.

The navigation system 1.9 generates a signal indicating the course of the road, the traffic flow, the traffic density, the speed of the motor vehicle 1 and / or the expected brightness of the environment.

For the collection of weather data in the environment of the motor vehicle 1 For example, other sensors such as a temperature sensor (not shown), a rain sensor (not shown), a brightness sensor (not shown), an air pressure sensor (not shown) and / or a side wind sensor (not shown) on the motor vehicle 1 be arranged. Furthermore, weather data may be received, for example, via the Internet modem or other suitable device, such as a radio receiver (not shown).

The temperature of the environment of a motor vehicle can be used in the calculation of weather data, the visibility and / or the road conditions. For example, from reaching an ambient temperature of less than 2 degrees Celsius with the formation of black ice on the road is expected.

The presence of a precipitate in the vicinity of a motor vehicle can be incorporated into the calculation of weather data, visual and / or road conditions. For example, in heavy rain the visibility and / or the traction of a vehicle may be limited.

The ambient brightness can be included in the calculation of weather data, the visibility and / or the road conditions. For example, at night or at dusk the visibility is worse than during the day. Another example is the decrease in ambient brightness due to cloud formation during storms.

The air pressure can be used in the calculation of weather data, the visibility and / or the road conditions. For example, with falling air pressure with precipitation to be expected.

The presence of crosswind can be detected by a cross wind sensor (not shown). In strong crosswinds, the demands on the driving situation are greater than with little or no crosswind.

Since the with the help of the appropriate sensors (cameras 21 . 22 , Radar device 24 , Temperature sensor, rain sensor, brightness sensor, air pressure sensor and / or side wind sensor, etc.) weather data relate to the immediate environment of the vehicle, these are more accurate than, for example, the appropriate devices (navigation system 1.9 , Internet modem, radio receiver etc.) received weather data, which usually reflect the weather data of a larger area.

With the help of the appropriate sensors (cameras 21 . 22 , Brightness sensor, etc.) determined brightness values of the environment of the motor vehicle 1 are more accurate than, for example, the devices suitable for data (navigation system 1.9 , etc.) or sensors (clock, etc.) and data for different time zones combined brightness values, since the position of the motor vehicle with respect to the time zone or within the time zone can not be determined uniquely. Also by using several GPS signals in the navigation system 1.9 and stored data for different degrees of longitude, no accurate brightness values can be calculated for the environment, although such GPS signals contain the exact time and with them the position on the globe can be determined relatively accurately, for example, it can be darker by clouds or the vehicle 1 is located on a heavily lit street.

The driving situation signals include base signals, which alone can represent a driving situation signal, and modification signals with which one of the basic signals can be modified. In principle, any base signal can be combined with one or more of the modification signals, so that a modified driving situation signal is obtained. Below are listed in a table base signals and modification signals. base signals modification signals Speed (speedometer) Speed relative to objects (camera) Speed (wheel speed sensors) Speed relative to objects (radar) Speed (acceleration sensors) Speed relative to objects (laser scanner) Speed (navigation system) Speed relative to objects (rangefinder) Speed (speed sensor) Curvature (acceleration sensors) Gearbox adjustment (gearbox sensor) Curviness (wheel speed sensors) Mean acceleration in the past (acceleration sensors) Road course (camera) Heartbeat of the driver (heart rate sensor) Road (Radar) Pulse of the driver (radar system) Road course (laser scanner) Stress value via pupil responsiveness (camera) Road course (rangefinder) Attention request signal (driver assistance system) Road course (navigation system) Distance to objects (camera) Distance to objects (radar) Distance to objects (laser scanner) Distance to objects (rangefinder) Traffic density (camera) Traffic density (radar) Traffic density (laser scanner) Traffic density (rangefinder) Traffic density (navigation system) Traffic density (Internet) Traffic density (radio receiver) Traffic flow (camera) Traffic flow (radar) Traffic flow (laser scanner) Traffic flow (rangefinder) Traffic flow (navigation system) Traffic flow (Internet) Traffic flow (radio receiver) Ambient temperature (temperature sensor) Precipitation (rain sensor) Ambient brightness (brightness sensor) Ambient brightness (camera) Barometric pressure (barometric pressure sensor) Crosswind (cross wind sensor) Weather (camera) Weather (radar) Weather (navigation system) Weather (Internet) Weather (radio receiver) Current acceleration (acceleration sensors) Medium acceleration (acceleration sensors) Road surface (camera) Road surface (navigation system) Fatigue (heartbeat sensor) Tiredness (radar system) Tiredness (camera) Distance traveled (speedometer) Travel distance traveled (navigation system) Driving time (clock) Travel time (navigation system) Attention request signal (driver assistance system) Speed (speed sensor)

The driving situation signal, as described above in the different embodiments, can also be used to control other elements, such as for adjusting suspension parameters, gear shift parameters and / or current or torque profiles of an electric vehicle be used. The provision of a driving situation signal thus represents an independent idea of the invention.

• a) Eingeben von Daten an einer Eingabeeinrichtung,
• b) Bestimmen der Fahrsituation,
• c) Bestimmen einer Reaktionszeit nach Maßgabe der Fahrsituation, mit welcher eine weitere Eingabe möglich ist, und
• d) Ansteuern der Dateneingabeeinrichtung zur Eingabe weiterer Daten nach Ablauf der Reaktionszeit seit dem Eingeben der Daten im Schritt a).

A procedure ( 5 ) for entering data with a data input device in a motor vehicle comprises the steps of:

• a) inputting data to an input device,
• b) determining the driving situation,
• c) determining a reaction time in accordance with the driving situation, with which a further input is possible, and
• d) activating the data input device for inputting further data after the reaction time has expired since the inputting of the data in step a).

The steps a) and b) can also be reversed or executed simultaneously in the order of their execution.

• a) Initialisieren bzw. Freischalten der Eingabe. Hierbei wird bspw. ein Eingabepuffer initialisiert, so dass an der Eingabeeinrichtung es möglich ist, Daten einzugeben.
• b) Überprüfen, ob eine Eingabe von Daten erfolgt ist. Falls Nein, wird der Schritt b) erneut ausgeführt.
• c) Überprüfen, ob die Geschwindigkeit des Kraftfahrzeugs kleiner oder gleich 5 km/h ist. Falls Ja, wird der Schritt i) ausgeführt.
• d) Überprüfen, ob die eingegebenen Daten eine fahrrelevante Eingabe sind. Falls Ja, wird der Schritt i) ausgeführt.
• e) Blockieren oder Ignorieren von Eingaben. Hierbei wird entweder der Eingabepuffer gesperrt. Es ist auch möglich, die Eingabeeinrichtung mechanisch zu blockieren.
• f) Bestimmen einer Reaktionszeit nach Maßgabe der Fahrsituation.
• g) Abwarten der Reaktionszeit.
• h) Aufheben der Blockade oder des Ignorierens von Eingaben. Der Eingabepuffer wird wieder freigeschaltet und/oder die mechanische Sperrung wird aufgehoben.
• i) Ausgabe der Daten an der Anzeigeeinrichtung.
• j) Überprüfen, ob ein Datensatz vollständig eingegeben ist. Falls Nein, wird der Schritt b) erneut ausgeführt.
• k) Senden des vollständig eingegebenen Datensatzes an ein entsprechendes Gerät, danach wird der Schritt b) erneut ausgeführt.

An example of an advanced method for entering data with a data input device in a motor vehicle is in FIG 6 shown. The advanced procedure includes the steps:

• a) Initialize or enable the input. In this case, for example, an input buffer is initialized, so that it is possible to input data at the input device.
• b) Check if an input of data has occurred. If no, step b) is executed again.
• c) Check whether the speed of the motor vehicle is less than or equal to 5 km / h. If yes, step i) is executed.
• d) Check whether the entered data is a driving-relevant input. If yes, step i) is executed.
• e) blocking or ignoring input. In this case, either the input buffer is blocked. It is also possible to mechanically block the input device.
• f) determining a reaction time in accordance with the driving situation.
• g) Waiting for the reaction time.
• h) Unblocking or ignoring input. The input buffer is released again and / or the mechanical blocking is canceled.
• i) output of the data on the display device.
• j) Check if a record is completely entered. If no, step b) is executed again.
• k) sending the completely entered data record to a corresponding device, after which step b) is executed again.

This embodiment distinguishes two driving situations, the slow and the fast driving situation. This embodiment may be modified according to the above-described different driving situation signals.

LIST OF REFERENCE NUMBERS

1

motor vehicle

2

Data entry device

3

speedometer

4

transmission

5

control device

6

bus

7

Rotary push button

7.1

knob

7.2

button

8th

screen

9

other devices

1.9

navigation system

9.2

car phone

3.9

Fahrwerkeinstellsystem

4.9

Vehicle speed control system (cruise control)

10

Lamp

11

speaker

12

Electromagnetic drive

13

wheel speed sensor

14

wheel

15

accelerometer

16

Rotary push-button for the driver

1.16

Rotary knob for the driver

2.16

Button for the driver

17

Turn-push button for the front passenger

1.17

Rotary knob for the front passenger

2.17

Button for the passenger

18

operating sensor

19

transmission sensor

20

Speed sensor

21

camera

22

camera

23

Windshield

24

radar

25

laser scanner

26

rangefinder

27

pedestrian

28

road sign

29

crash barriers

Claims (15)

Data input device for motor vehicles, comprising an input device and a control device, wherein the control device is connected to a driving situation sensor which generates a signal describing the driving situation, wherein the control device is designed such that it changes a reaction time depending on the driving situation, with which an input at the input device, a further input is possible, and the reaction time is extended upon reaching a predetermined driving situation. Data input device according to claim 1, characterized in that it comprises a display device and the control device is designed such that it controls a display on the display device in dependence on data input to the input device and after an input on the input device the display on the display device only after The response time is changed so that the entered information is displayed. Data input device according to claim 1 or 2, characterized in that the control device during the reaction time switches the input device inactive. Data input device according to one of claims 1 to 3, characterized in that the driving situation sensor is a tachometer or a sensor which generates a signal with which a transmission gear ratio is reproduced, wherein a larger translation corresponds to a greater speed. Data input device according to one of claims 1 to 4, characterized in that the control device is designed such that the extension of the reaction time is approximately proportional to the speed of the motor vehicle or proportional to a ratio of a transmission, wherein the extension of the reaction time is changed in particular continuously or stepwise , Data input device according to one of claims 1 to 5, characterized in that the control device is designed such that in the assessment of the driving situation, the road and / or weather conditions are taken into account. Data input device according to one of claims 1 to 6, characterized in that the extended reaction time is at least 0.2 s or 0.3 s or 0.4 s or 0.5 s. Data input device according to one of claims 1 to 7, characterized in that the control device is designed such that after expiration of the reaction time, an optical, haptic and / or acoustic signal is output, wherein the optical signal preferably a change in the brightness and / or a Change of color is. Data input device according to one of claims 1 to 8, characterized in that the input device has a rotary knob, preferably a rotary / push button and / or a touch-sensitive screen. Data input device according to one of claims 1 to 9, characterized in that the control device is designed such that only the reaction time for the display of non-driving-relevant inputs, such. As input destinations of a navigation system, telephone numbers, inputs to an audio system, inputs to a system for providing traffic data, is extended. Data input device according to one of claims 1 to 10, characterized in that the control device is designed such that predetermined inputs are prevented from a certain further driving situation. Data input device according to one of claims 1 to 11, characterized in that the control device is designed such that the assistance level of a driver assistance system is included in the change in the reaction time, wherein the extended reaction time is shortened depending on the degree of support. A method of entering data with a data input device in a motor vehicle, comprising a) inputting data to an input device, b) determining the driving situation, c) determining a reaction time in accordance with the driving situation, with which a further input is possible, and d) activating the data input device for inputting further data after the reaction time has expired since the inputting of the data in step a). A method according to claim 13, characterized in that for driving the data input device for inputting further data to a display device, information for inputting further data is displayed and / or the input device, which was switched inactive during the reaction time, is actively switched. A method according to claim 13 or 14, characterized in that a data input device according to one of claims 1 to 12 is used.

Images