CN113124148A - Gear shifting control method and device - Google Patents
Gear shifting control method and device Download PDFInfo
- Publication number
- CN113124148A CN113124148A CN202110422463.7A CN202110422463A CN113124148A CN 113124148 A CN113124148 A CN 113124148A CN 202110422463 A CN202110422463 A CN 202110422463A CN 113124148 A CN113124148 A CN 113124148A
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- gear
- time
- brake system
- shift control
- gearbox
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0232—Selecting ratios for bringing engine into a particular state, e.g. for fast warming up or for reducing exhaust emissions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
本发明涉及发动机领域，公开一种换档控制方法及设备，该换档控制方法包括：基于变速箱的升档过程，获取变速箱的初始档位和当前档位，判断所述初始档位与当前档位的档位差是否大于等于两档；若确定所述初始档位与所述当前档位之间的档位差大于等于两档，触发制动系统工作并确定工作时间，基于所述制动系统的工作时间，确定喷油器的喷油时间。用于提升换档相应时间和保证发动机的燃烧状态正常。
The invention relates to the field of engines, and discloses a shift control method and equipment. The shift control method includes: obtaining an initial gear position and a current gear position of a gearbox based on an upshift process of a gearbox, and judging the difference between the initial gear position and the current gear position. Whether the gear difference of the current gear is greater than or equal to two gears; if it is determined that the gear difference between the initial gear and the current gear is greater than or equal to two gears, trigger the braking system to work and determine the working time, based on the The working time of the braking system determines the fuel injection time of the injector. It is used to improve the shift response time and ensure the normal combustion state of the engine.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a gear shifting control method and gear shifting control equipment.
Background
AMT is short for electric control mechanical automatic gearbox, which is an automatic speed changing system with microcomputer control on the basis of dry clutch and gear speed changer.
In actual use, a gear-crossing and gear-up requirement sometimes exists, but when the gear-crossing and gear-up is carried out, the engine braking system can be delayed to quit due to the characteristics of the engine braking system and an oil injector due to the matching of the engine braking system and the oil injector; therefore, the problems that the engine is in a braking state, and the fuel injector injects fuel to cause abnormal combustion, the engine injects fuel, black smoke is emitted and the like can occur.
Disclosure of Invention
The invention discloses a gear shifting control method and gear shifting control equipment, which are used for prolonging the corresponding gear shifting time and ensuring the combustion state of an engine to be normal.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, the present invention provides a shift control method comprising: acquiring an initial gear and a current gear of the gearbox based on the gear-up process of the gearbox, and judging whether the gear difference between the initial gear and the current gear is more than or equal to two gears;
and if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time, and determining the oil injection time of an oil injector based on the working time of the braking system.
When the gearbox is operated in a gear-crossing mode, the gear change of the gearbox exceeds one gear, namely the gear difference between the initial gear of the gearbox and the current gear of the gearbox is larger than or equal to two gears, a braking system in the engine is triggered at the moment, so that the engine enters a braking working condition in a cylinder, because the braking system has working time, an oil injection signal of a delay response oil injector needs to be considered, and otherwise, when the torque of the engine is increased and the engine needs oil injection, the engine braking system is still in a braking state. The engine is in a braking state, and the fuel injector injects fuel to cause abnormal combustion, so that the engine fires and emits black smoke. Therefore, the oil injection time of the oil injector can ensure that the engine is in a normal state after the brake system is out of work. That is, when the engine is switched from the current rotating speed R1 to the target rotating speed R2, the engine is triggered to enter a braking state, the torque required in the rotating speed reduction process is greatly improved, the time for the engine rotating speed R1 to fall to the target rotating speed R2 is shortened, and the gear shifting responsiveness is improved. Meanwhile, the normal combustion state of the engine is ensured by delaying the oil injection of the oil injector.
Optionally, the triggering the braking system to work specifically includes: and triggering the brake solenoid valve to start working.
Optionally, the working time is specifically determined by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
Optionally, the operating time T of the braking system1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
in a second aspect, the present invention provides a shift control apparatus comprising: a processor and a memory, wherein the memory stores program code that, when executed by the processor, causes the processor to:
acquiring an initial gear and a current gear of the gearbox based on the gear-up process of the gearbox, and judging whether the gear difference between the initial gear and the current gear is more than or equal to two gears;
and if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time, and determining the oil injection time of an oil injector based on the working time of the braking system.
Optionally, the processor is further configured to trigger the brake system to operate specifically including: and triggering the brake solenoid valve to start working.
Optionally, the processor is further configured to determine the working time specifically by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
Optionally, the processor is further configured to determine an operating time T of the brake system1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
drawings
FIG. 1 is a flow chart of a shift control method provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a shift control method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a shift control device provided in accordance with an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In a first aspect, as shown in fig. 1, an embodiment of the present invention provides a shift control method, including the steps of:
s101: acquiring an initial gear and a current gear of the gearbox based on the gear-up process of the gearbox, and judging whether the gear difference between the initial gear and the current gear is more than or equal to two gears;
s102: if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time;
s103: and determining the oil injection time of the oil injector based on the working time of the brake system.
When the gearbox is operated in a gear-crossing mode, the gear change of the gearbox exceeds one gear, namely the gear difference between the initial gear of the gearbox and the current gear of the gearbox is larger than or equal to two gears, a braking system in the engine is triggered at the moment, so that the engine enters a braking working condition in a cylinder, because the braking system has working time, an oil injection signal of a delay response oil injector needs to be considered, and otherwise, when the torque of the engine is increased and the engine needs oil injection, the engine braking system is still in a braking state. The engine is in a braking state, and the fuel injector injects fuel to cause abnormal combustion, so that the engine fires and emits black smoke. Therefore, the oil injection time of the oil injector can ensure that the engine is in a normal state after the brake system is out of work. That is, when the engine is switched from the current rotating speed R1 to the target rotating speed R2, the engine is triggered to enter a braking state, the torque required in the rotating speed reduction process is greatly improved, the time for the engine rotating speed R1 to fall to the target rotating speed R2 is shortened, and the gear shifting responsiveness is improved. Meanwhile, the normal combustion state of the engine is ensured by delaying the oil injection of the oil injector.
Specifically, the triggering of the braking system specifically includes: and triggering the brake solenoid valve to start working.
By receiving a step-by-step gear-up shifting demand from a Transmission TCU (Transmission Control Unit), an ECU (Electronic Control Unit) receives a response step-by-step shifting signal (the gear is increased by more than or equal to two gears), and controls and triggers an electromagnetic valve in a braking system in an engine to act, so that the engine enters an in-cylinder braking working condition.
Optionally, the working time is specifically determined by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
The brake system has response time, and the response time is the inherent response time of the brake system and can be measured through tests; the delay time is due to the characteristics of the engine braking system, and the exit is delayed, so that the delay time exists.
Optionally, the operating time T of the braking system1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
the engine is in a braking state, and the fuel injector injects fuel to cause abnormal combustion, so that the engine fires and emits black smoke. It is therefore necessary to ensure a delayed injection response of the injector, i.e. the injection time T of the injector2Greater than the operating time T of the braking system1The normal state of the engine can be ensured.
Fig. 2 is a schematic diagram of a determination of a shift control method according to an embodiment of the present invention, which includes the following steps:
s201: acquiring an initial gear and a current gear of a gearbox;
s202: judging whether the gear difference is greater than or equal to two gears or not according to the initial gear and the current gear of the gearbox; if the gear level difference is greater than or equal to two gears, executing S203; otherwise, executing S201;
s203: triggering a brake system solenoid valve to open, and determining the working time of the brake system;
s204: detecting an oil injection signal of the oil injector, and determining the oil injection time of the oil injector;
s205: judging whether the oil injection of the oil injector is detected, if so, executing S206; otherwise, executing S203;
s206: and closing the electromagnetic valve of the braking system, and delaying oil injection by the oil injector.
In a second aspect, as shown in fig. 3, the present invention provides a shift control apparatus comprising: a processor 301 and a memory 302, wherein the memory 302 stores program code that, when executed by the processor 301, causes the processor 301 to perform the following:
acquiring an initial gear and a current gear of the gearbox based on the gear-up process of the gearbox, and judging whether the gear difference between the initial gear and the current gear is more than or equal to two gears;
and if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time, and determining the oil injection time of an oil injector based on the working time of the braking system.
Optionally, the processor 301 is further configured to trigger the brake system to work specifically including: and triggering the brake solenoid valve to start working.
Optionally, the processor 301 is further configured to determine the working time specifically by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
Optionally, the processor 301 is further configured to operate the braking systemWorking time T1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
it will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A shift control method, comprising: acquiring an initial gear and a current gear of the gearbox based on the gear-up process of the gearbox, and judging whether the gear difference between the initial gear and the current gear is more than or equal to two gears;
and if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time, and determining the oil injection time of an oil injector based on the working time of the braking system.
2. The shift control method according to claim 1, wherein the triggering the brake system to operate specifically comprises: and triggering the brake solenoid valve to start working.
3. The shift control method according to claim 1, characterized in that the operating time is determined in particular by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
4. The shift control method according to claim 1, wherein an operating time T of the brake system1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
5. a shift control apparatus, characterized in that the apparatus comprises: a processor and a memory, wherein the memory stores program code that, when executed by the processor, causes the processor to:
acquiring an initial gear of the gearbox based on a gear-up process of the gearbox, and judging whether a gear difference between the initial gear and a current gear is more than or equal to two gears;
and if the gear difference between the initial gear and the current gear is determined to be more than or equal to two gears, triggering a braking system to work and determining the working time, and determining the oil injection time of an oil injector based on the working time of the braking system.
6. The shift control apparatus of claim 5, wherein the processor is further configured to activate the brake system specifically including: and triggering the brake solenoid valve to start working.
7. The shift control apparatus of claim 5, wherein the processor is further configured to determine the operating time by:
acquiring delay time of a brake system;
the operating time is determined from the intrinsic response time of the brake system and the delay time of the brake system.
8. The shift control apparatus of claim 5, wherein the processor is further configured to determine an on-time T of the brake system1And the injection time T of said injector2The following relationship is satisfied:
T2＝1.1*T1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422463.7A CN113124148B (en) | 2021-04-20 | 2021-04-20 | Gear shifting control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422463.7A CN113124148B (en) | 2021-04-20 | 2021-04-20 | Gear shifting control method and device |
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| CN113124148A true CN113124148A (en) | 2021-07-16 |
| CN113124148B CN113124148B (en) | 2022-08-23 |
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| CN202110422463.7A Active CN113124148B (en) | 2021-04-20 | 2021-04-20 | Gear shifting control method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819234A (en) * | 2021-08-18 | 2021-12-21 | 潍柴动力股份有限公司 | Shift assist control method and vehicle |
| CN114893310A (en) * | 2022-04-24 | 2022-08-12 | 潍柴动力股份有限公司 | Engine protection control method and device and electronic equipment |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128727A (en) * | 1984-07-17 | 1986-02-08 | Nippon Denso Co Ltd | Engine speed control device for vehicular internal-combustion engine |
| US5010788A (en) * | 1989-04-17 | 1991-04-30 | Nissan Motor Co., Ltd. | Automatic automotive transmission having 4-2 downshift sequence valve |
| US5568387A (en) * | 1993-12-30 | 1996-10-22 | Scania Cv Aktiebolag | Method and arrangement for adaptive switching off of the exhaust brake in connection with upshift |
| CN1270900A (en) * | 1998-12-24 | 2000-10-25 | 易通公司 | Speed reducing control for automatic speed changer |
| US6325743B1 (en) * | 1999-01-14 | 2001-12-04 | Eaton Corporation | Automated transmission upshift control |
| JP2003206763A (en) * | 2002-01-17 | 2003-07-25 | Mitsubishi Motors Corp | Exhaust purification system for internal combustion engine for vehicles |
| WO2003097401A1 (en) * | 2002-05-17 | 2003-11-27 | Volvo Lastvagnar Ab | Procedure for upshifting gear in a motor vehicle and a power plant unit for a motor vehicle |
| CN1663835A (en) * | 2004-03-01 | 2005-09-07 | 丰田自动车株式会社 | Vehicle control apparatus operable during shifting of transmission |
| JP2008138691A (en) * | 2006-11-30 | 2008-06-19 | Jatco Ltd | Control device for automatic transmission |
| CN105966392A (en) * | 2015-03-11 | 2016-09-28 | 丰田自动车株式会社 | Control apparatus for hybrid vehicle |
| CN109416123A (en) * | 2016-07-11 | 2019-03-01 | 斯堪尼亚商用车有限公司 | For changing the method for the transmission ratio in the gearbox of the vehicles |
| CN110925103A (en) * | 2019-12-13 | 2020-03-27 | 潍柴动力股份有限公司 | Engine auxiliary braking control method, device and equipment |
| CN111927619A (en) * | 2020-08-18 | 2020-11-13 | 潍柴动力股份有限公司 | Power assembly, engine runaway protection device and method |
-
2021
- 2021-04-20 CN CN202110422463.7A patent/CN113124148B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128727A (en) * | 1984-07-17 | 1986-02-08 | Nippon Denso Co Ltd | Engine speed control device for vehicular internal-combustion engine |
| US5010788A (en) * | 1989-04-17 | 1991-04-30 | Nissan Motor Co., Ltd. | Automatic automotive transmission having 4-2 downshift sequence valve |
| US5568387A (en) * | 1993-12-30 | 1996-10-22 | Scania Cv Aktiebolag | Method and arrangement for adaptive switching off of the exhaust brake in connection with upshift |
| CN1270900A (en) * | 1998-12-24 | 2000-10-25 | 易通公司 | Speed reducing control for automatic speed changer |
| US6325743B1 (en) * | 1999-01-14 | 2001-12-04 | Eaton Corporation | Automated transmission upshift control |
| JP2003206763A (en) * | 2002-01-17 | 2003-07-25 | Mitsubishi Motors Corp | Exhaust purification system for internal combustion engine for vehicles |
| WO2003097401A1 (en) * | 2002-05-17 | 2003-11-27 | Volvo Lastvagnar Ab | Procedure for upshifting gear in a motor vehicle and a power plant unit for a motor vehicle |
| CN1663835A (en) * | 2004-03-01 | 2005-09-07 | 丰田自动车株式会社 | Vehicle control apparatus operable during shifting of transmission |
| JP2008138691A (en) * | 2006-11-30 | 2008-06-19 | Jatco Ltd | Control device for automatic transmission |
| CN105966392A (en) * | 2015-03-11 | 2016-09-28 | 丰田自动车株式会社 | Control apparatus for hybrid vehicle |
| CN109416123A (en) * | 2016-07-11 | 2019-03-01 | 斯堪尼亚商用车有限公司 | For changing the method for the transmission ratio in the gearbox of the vehicles |
| CN110925103A (en) * | 2019-12-13 | 2020-03-27 | 潍柴动力股份有限公司 | Engine auxiliary braking control method, device and equipment |
| CN111927619A (en) * | 2020-08-18 | 2020-11-13 | 潍柴动力股份有限公司 | Power assembly, engine runaway protection device and method |
Non-Patent Citations (2)
| Title |
|---|
| 贾敏等: "一种匹配AMT的重型车辆档位限制方法", 《重型汽车》 * |
| 韩云武等: "混合动力汽车发动机辅助制动控制方法", 《汽车工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819234A (en) * | 2021-08-18 | 2021-12-21 | 潍柴动力股份有限公司 | Shift assist control method and vehicle |
| CN114893310A (en) * | 2022-04-24 | 2022-08-12 | 潍柴动力股份有限公司 | Engine protection control method and device and electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN113124148B (en) | 2022-08-23 |
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