CN111750089B - Vehicle gear shifting control system and control method based on TCU - Google Patents
Vehicle gear shifting control system and control method based on TCU Download PDFInfo
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- CN111750089B CN111750089B CN202010548465.6A CN202010548465A CN111750089B CN 111750089 B CN111750089 B CN 111750089B CN 202010548465 A CN202010548465 A CN 202010548465A CN 111750089 B CN111750089 B CN 111750089B
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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
- F16H61/18—Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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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
- F16H2061/0075—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 a particular control method
- F16H2061/0087—Adaptive control, e.g. the control parameters adapted by learning
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention provides a vehicle gear shifting control system and a control method based on a TCU (transmission control unit), which comprises the following steps: the system comprises a basic software layer, a running environment and an application layer, wherein the application layer comprises: the system comprises a signal input module, a signal output module, a clutch control module, an execution mechanism control module, a self-learning module, a power takeoff control module, a gear shifting strategy module and a state identification module; the running environment provides communication for the application layer, the bottom layer and the application layer; the basic software layer provides basic service for the gear shifting control unit; according to the invention, the driver operates the handle but the vehicle executes the execution mode of automatic gear shifting, the position of the gear shifting handle is detected in real time by using the sensor, meanwhile, the functions of preventing misoperation and monitoring unreasonable gears are achieved, and the optimal gear shifting strategy is used, so that the manipulation strength and fatigue of the driver are reduced, and the comfort, economy and reliability of the vehicle are improved.
Description
Technical Field
The invention belongs to the technical field of automobile gear shifting, and particularly relates to a TCU-based vehicle gear shifting control system and a control method.
Background
With the rapid development of electronic technology, the software scale is increased, and the complexity of the automobile electronic system is increased sharply. The AUTOSAR (automatic Open System architecture) standard is a new set of guidelines for the development of automotive electronic systems. The AUTOSAR standard enables design and development of automobile application software to be easy to manage, a software system is not limited by a basic platform any more and is easy to transplant, exchange and update of automobile electronic system software are facilitated, and complex automobile electronic application software is easy to manage, so that the AUTOSAR standard is widely popularized.
Along with the rapid development of the automobile field, the automatic gear shifting technology emerges, the automatic gear shifting technology does not need a driver to operate a gear shifting handle, the working strength of the driver can be reduced, the comfort and the economy of the vehicle are improved, the real intention of the driver is difficult to show when the driver encounters an area with complex road conditions, the economy and the reliability of the vehicle are reduced, and the performance is poor. Therefore, the novel telex vehicle gear shifting control system can realize the pleasure of manual driving of a driver and has the advantages of an automatic gear shifting technology, can reduce the driving intensity of the driver and solve the problem of insufficient automatic gear shifting technology, and is a novel gear shifting mode integrating manual gear shifting and automatic gear shifting, namely carefree gear shifting. The carefree gear shifting system uses a manual gear shifting handle to replace a gear shifting operating handle unit in an automatic gear shifting system, two angle sensors are additionally arranged in the manual gear shifting handle to detect the position of the gear shifting handle in real time, the operating intention of a driver is identified, the driving intention of the driver is received through a gearbox controller in the automatic gear shifting system, the carefree gear shifting system has the functions of preventing misoperation and monitoring unreasonable gears, the optimal gear shifting strategy can be realized, and the comfort, the economy and the reliability of a vehicle are improved.
In summary, in order to better study a novel carefree shift system and simultaneously realize modularity, transportability, reusability and the like of software, the invention provides a vehicle shift control system and a vehicle shift control method based on a TCU (train control unit) which adopt AUTOSAR (automotive open system architecture) standard and are suitable for the carefree shift system.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a TCU-based vehicle shift control system and control method to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a TCU-based vehicle shift control system comprising: the system comprises a basic software layer, a running environment and an application layer, wherein the application layer comprises: the system comprises a clutch control module, an actuating mechanism control module, a self-learning module, a power takeoff control module, a gear shifting strategy module and a state identification module; the running environment provides support for information interaction between the modules of the application layer and information interaction between the application layer and the basic software layer; the basic software layer provides basic services for the shift control unit.
Further, the system further comprises:
the clutch control module is used for controlling a control strategy of the clutch.
The actuating mechanism control module is used for controlling the action execution of the gear selecting and shifting actuating mechanism, monitoring the gear positions of the current gearbox and the gear shifting handle and detecting whether the gears are in place or not;
the self-learning module is used for self-learning gears of the gear shifting handle and the gearbox;
the gear shifting strategy module is used for calculating the optimal target gear for gear shifting and judging whether the handle gear selected by the driver is reasonable or not;
the state identification module is used for identifying the running state of the vehicle and the gear state of the gear shifting handle selected by the driver.
Further, the system further comprises: the signal input module is used for inputting a sensor signal, a switch signal and a CAN signal; the signal output module is used for outputting an actuating signal and a CAN signal of the electromagnetic valve.
In a second aspect, the present invention provides a TCU-based vehicle shift control system control method, comprising:
monitoring to obtain a gear shifting handle signal, and judging the gear of the gear shifting handle according to the gear shifting handle position signal;
the automatic mode or the manual mode is selected and switched according to the position of a gear shifting handle operated by a driver:
if the driver selects the manual mode, performing gear shifting operation according to the gear shifting handle;
and if the driver selects the automatic mode, calculating a gear shifting target gear, and performing gear shifting operation according to the target gear.
Further, before a shift operation is performed according to the manual mode transmission, the method further includes:
whether the handle gear shifting is reasonable or not is judged: if the number is not reasonable, an alarm signal is sent.
Further, the shift operation includes:
controlling the clutch to be separated;
the gear selecting and shifting executing mechanism executes gear shifting action;
the clutch is combined;
detecting whether the gear selecting and shifting executing mechanism is executed in place: if the gear shifting operation is in place, carrying out next detection, and if the gear shifting operation is not in place, carrying out the gear shifting operation again;
further, the method further comprises:
detecting whether the gear of the current gearbox is consistent with the gear of the handle: if the gear shifting is consistent, the gear shifting is successful; otherwise, the gear shifting is failed and an alarm signal is sent.
Further, the method further comprises:
detecting whether the gear position of a gear shifting handle is pushed in place: if not, the electric motor vibrates to send a handle operation error warning.
The beneficial effect of the invention is that,
according to the TCU-based vehicle gear shifting control system and the TCU-based vehicle gear shifting control method, a driver operates a handle but the vehicle executes an automatic gear executing mode, a sensor is used for detecting the position of the gear shifting handle in real time, and the intention of the driver is held well by distinguishing the gear selected by the driver, so that the manipulation strength and fatigue of the driver are reduced, and the optimal gear shifting strategy is realized; the control strategy of the gear shifting handle is integrated into the TCU, so that a controller does not need to be added independently to analyze the gear shifting action of a driver, and the hardware development cost is reduced; the gear selection device has the functions of monitoring and protecting the gear selected by the driver, and has the function of preventing misoperation, and if the gear shifting handle of the driver is not pushed in place or the selected gear is unreasonable, an alarm signal is sent and the gear request of the driver is rejected, so that the driving safety is improved; the self-learning function of various gearboxes and gear shifting handles can be performed, the type of the gearbox is identified, and meanwhile, the support is provided for the vehicle diagnosis function; the AUTOSAR system enables the software module to have better portability and higher reliability, is beneficial to the later maintenance of the software system, is convenient to manage and reduces the product maintenance cost.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a system according to an embodiment of the present invention.
FIG. 2 is a schematic flow diagram of a method of one embodiment of the invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all 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 the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The terms in which the present invention appears are explained below.
TCU: transmission Control Unit, i.e. automatic Transmission Control Unit, is commonly used in automatic transmissions such as AMT, AT, DCT, CVT, etc. to realize automatic Transmission Control and make driving easier.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
The present embodiment shown in fig. 1 provides a vehicle gear shift control system based on a TCU, the system is disposed in the TCU of a vehicle and modularized according to AUTOSAR standard, and the system includes: a base software Layer (BSW), a run-time environment (RTE), and an Application Layer (Application Layer), the Application Layer including: the system comprises a signal input module, a signal output module, a clutch control module, an execution mechanism control module, a self-learning module, a power takeoff control module, a gear shifting strategy module and a vehicle state identification module; and all modules of the application layer are set to be minimum logic units, and all the modules can communicate through RTE and can communicate with BSW through RTE. The running environment provides support for information interaction between different modules of an application layer and information interaction between the application layer and a basic software layer; the basic software layer provides basic service for the gear shifting control unit;
the signal input module is used for inputting sensor signals, switch signals, CAN signals and the like required by the TCU;
the signal output module is used for outputting actuating signals, CAN signals and the like of the solenoid valves which are required to be transmitted to other control units by the TCU;
the clutch control module is responsible for a clutch control strategy, judges the clutch separation and combination points by using an algorithm and controls the separation and combination of the brake clutch by controlling the switch of the electromagnetic valve of the clutch boosting cylinder;
the actuating mechanism control module is responsible for controlling the position judgment and action execution of the gear selecting and shifting actuating mechanism and carrying out real-time monitoring on the gear position of the gearbox. Judging the gear and the position of the current transmission, detecting whether the gear of the gearbox is in place or not after the gear shifting action is executed, and determining that the gear position is in place within five percent of the self-learning position, wherein five percent is a calibratable amount. The gear selecting and shifting actuating mechanism does not perform gear engaging action again when the gear is not in place;
the self-learning module is responsible for the gear shifting handle and the gearbox gear self-learning function, and the gear shifting handle and the gearbox need to be self-learned when the vehicle is off-line detected, so that different gear position information can be stored. In addition, when the vehicle is changed and the handle of shifting is worn and torn for a long time in service life, each gear position of the handle of shifting needs to be learned again. When the vehicle changes the gearbox or is used for a long time, the gear positions of the gearbox need to be learned again. The type of the gearbox can be identified through the gear shifting handle and the self-learning function of the gearbox;
the power takeoff module is responsible for executing a power takeoff control strategy and power takeoff actions, controlling the on-off of a power takeoff electromagnetic valve and separating and combining the power takeoff;
the gear shifting strategy module is responsible for gear selecting and shifting control strategies, judges gear shifting points by using an algorithm, judges whether the gear selected by a driver is reasonable or not, unreasonably refuses the gear request of the driver, keeps the original gear and is responsible for the control strategies of gear selecting and gear shifting;
the state identification module is used for identifying the running state of the whole vehicle and the gear state of the gear shifting handle selected by a driver, such as starting, stopping, sliding and normal running, and the handle is in a neutral gear, a non-neutral gear and the like;
the gear recognition module is responsible for recognizing the gear selected by the driver, the gear position of the shifting handle is monitored in real time, when the driver operates the shifting handle, the current position of the handle is judged according to the signal of the angle sensor, and whether the shifting handle is in place or not is detected, and the gear position of the shifting handle is determined to be in place within thirty percent of the self-learning position of each gear. Wherein thirty percent is the amount of calibration, and the specific range depends on the handle. When the gear shifting handle is not in place or is abnormal, the gear identification module sends an alarm signal in time, and meanwhile, protective measures are taken to reject the gear request of a driver.
The system can realize two driving modes: an automatic mode and a manual mode. The automatic mode driver does not need to perform any gear shifting action, and the system automatically takes over the clutch; in the manual mode, a driver operates a gear shifting handle, gear shifting is carried out according to the driving desire of the driver, and the driver does not need to step on a clutch. In this embodiment, the gear identification module is only applicable to the manual mode, and the automatic mode does not require this module. Other modules are shared by an automatic mode and a manual mode, and control strategies of some modules are different.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention. Wherein, the execution body of fig. 1 can be a vehicle gear shifting control system based on a TCU.
As shown in fig. 1, the method 100 includes:
step 110, monitoring and acquiring a handle gear shifting signal, and judging a gear shifting position according to the gear shifting signal;
and step 120, switching an automatic mode or a manual mode according to the selection of the driver:
if the driver selects the manual mode, performing gear shifting operation according to the gear shifting gear;
and if the driver selects the automatic mode, calculating a target gear and carrying out gear shifting operation according to the target gear.
Optionally, as an embodiment of the present invention, before the shift operation is performed according to the manual mode shift gear, the method further includes:
judging whether the gear shifting is reasonable or not: if the number is not reasonable, an alarm signal is sent.
Alternatively, as an embodiment of the present invention, the shift operation includes:
controlling the clutch to be separated;
the gear selecting and shifting executing mechanism executes gear shifting action;
the clutch is combined;
detecting whether the gear selecting and shifting executing mechanism is executed in place: if the gear shifting operation is in place, the next detection is carried out, and if the gear shifting operation is not in place, the gear shifting operation is carried out again.
Optionally, as an embodiment of the present invention, the method further includes:
detecting whether the gear of the current gearbox is consistent with the gear of the handle: if the gear shifting is consistent, the gear shifting is successful; otherwise, the gear shifting is failed and an alarm signal is sent.
Optionally, as an embodiment of the present invention, the method further includes:
detecting whether the gear position of a gear shifting handle is pushed in place: if not, the electric motor vibrates to send a handle operation error warning.
In order to facilitate understanding of the present invention, the vehicle automatic gear shifting control system provided by the present invention will be further described below with reference to the principle of the automotive automatic gear shifting control method according to the present invention and the process of the vehicle gear shifting system in the embodiments.
Specifically, the automotive automatic gear shifting control system and the control method based on AUTOSAR comprise the following steps:
s1, waiting for the driver to operate the gear shifting handle;
s2, detecting the position of the gear shifting handle in real time, detecting whether the gear position of the gear shifting handle is pushed to the right when detecting that a driver requests a new gear, detecting the current gear shifting handle position if the gear shifting position is in the right position, and judging the vehicle mode, wherein the electric motor does not vibrate when the gear shifting handle is not in the right position, and the driver needs to operate the gear shifting handle again;
s3, if the driver selects the automatic mode, calculating a target gear of gear shifting, starting to separate the clutch, starting to operate the gear selecting and shifting executing mechanism after the clutch is separated, combining the clutch after the gear selecting and shifting executing mechanism is operated, and detecting whether the gear selecting and shifting executing mechanism is operated in place: if the gear is in place, the gear shifting is successful; otherwise, the gear shifting fails, and the gear shifting needs to be requested again;
if the driver selects the manual mode, acquiring a gear shifting signal, judging whether the gear shifting is reasonable or not, and if the request fails, requesting gear shifting again; if the driver requests a reasonable gear, the clutch starts to be separated; if the requested gear is unreasonable, the vehicle keeps the current gear, the TCU sends an alarm signal, and the driver needs to reselect the operation gear-shifting handle and select a proper gear; after the clutch is separated, the gear selecting and shifting executing mechanism starts to act, the clutch is combined after the gear selecting and shifting executing mechanism acts, then the TCU detects whether the gear selecting and shifting executing mechanism is in place or not, if so, whether a handle gear requested by a driver is consistent with a current gearbox gear or not is judged, and if the gear selecting and shifting executing mechanism is not in place, the clutch and the gear selecting and shifting mechanism are required to perform gear engaging action again; if the handle gear requested by the driver is consistent with the current gearbox gear, the gear shifting is successful, the gear shifting is successfully returned and the gear shifting success information is sent, otherwise, the gear shifting is failed, and the driver is waited to request the gear shifting again.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A TCU-based vehicle shift control system, comprising: the system comprises a basic software layer, a running environment and an application layer, wherein the application layer comprises: the system comprises a clutch control module, an actuating mechanism control module, a self-learning module, a power takeoff control module, a gear shifting strategy module and a state identification module; the running environment provides support for information interaction between the modules of the application layer and information interaction between the application layer and the basic software layer; the basic software layer provides basic service for the gear shifting control unit;
the self-learning module is used for self-learning gears of the gear shifting handle and the gearbox;
the gear shifting handle and the gearbox store different gear position information through self-learning;
the clutch control module is used for controlling a control strategy of the clutch;
the actuating mechanism control module is used for controlling the action execution of the gear selecting and shifting actuating mechanism, monitoring the gear positions of the current gearbox and the gear shifting handle and detecting whether the gears are in place or not;
the gear positions within five percent of the self-learning positions are all determined to be in place;
the shift handle position is determined to be in place within thirty percent of the self-learning position of each gear
The gear shifting strategy module is used for calculating the optimal target gear for gear shifting and judging whether the handle gear selected by the driver is reasonable or not;
the state identification module is used for identifying the running state of the vehicle and the gear state of the gear shifting handle selected by the driver.
2. The TCU-based vehicle shift control system of claim 1, further comprising: the signal input module is used for inputting a sensor signal, a switch signal and a CAN signal; the signal output module is used for outputting an actuating signal and a CAN signal of the electromagnetic valve.
3. A TCU-based vehicle shift control method based on the TCU-based vehicle shift control system of claim 1 or 2, comprising:
monitoring to obtain a gear shifting handle signal, and judging the gear of the gear shifting handle according to the gear shifting handle position signal;
the automatic mode or the manual mode is selected according to the position of a gear shifting handle operated by a driver:
if the driver selects the manual mode, performing gear shifting operation according to the gear shifting handle;
and if the driver selects the automatic mode, calculating a gear shifting target gear, and performing gear shifting operation according to the target gear.
4. The TCU-based vehicle shift control method of claim 3, wherein prior to a shift operation in accordance with the manual mode transmission, the method further comprises:
whether the handle gear shifting is reasonable or not is judged: if the number is not reasonable, an alarm signal is sent.
5. The TCU-based vehicle shift control method of claim 3, wherein the shift operation comprises:
controlling the clutch to be separated;
the gear selecting and shifting executing mechanism executes gear shifting action;
the clutch is combined;
detecting whether the gear selecting and shifting executing mechanism is executed in place: if the gear shifting operation is in place, carrying out next detection, and if the gear shifting operation is not in place, carrying out the gear shifting operation again; the shift is successful; otherwise, the gear shifting is failed and an alarm signal is sent.
6. The TCU-based vehicle shift control method of claim 3, further comprising:
detecting whether the gear of the current gearbox is consistent with the gear of the handle: if the gear shifting is consistent, the gear shifting is successful; otherwise, the gear shifting is failed and an alarm signal is sent.
7. The TCU-based vehicle shift control method of claim 3, further comprising:
detecting whether the gear position of a gear shifting handle is pushed in place: if not, the electric motor vibrates to send a handle operation error warning.
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| CN202010548465.6A CN111750089B (en) | 2020-06-16 | 2020-06-16 | Vehicle gear shifting control system and control method based on TCU |
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| CN202010548465.6A CN111750089B (en) | 2020-06-16 | 2020-06-16 | Vehicle gear shifting control system and control method based on TCU |
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| CN112145669B (en) * | 2020-09-22 | 2022-04-26 | 奇瑞汽车河南有限公司 | Self-learning control system and control method for automatic gearbox gear of electric vehicle |
| CN113915332B (en) * | 2021-09-30 | 2022-11-08 | 重庆青山工业有限责任公司 | Method for prompting optimal gear-up/gear-down opportunity in DCT manual mode |
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| SE536237C2 (en) * | 2011-12-13 | 2013-07-16 | Scania Cv Ab | Apparatus and method for shifting a driveline of a motor vehicle |
| CN103527769B (en) * | 2013-09-24 | 2016-02-24 | 浙江吉利控股集团有限公司 | Synchronizer self study identification controlling method and position verification control method |
| CN104834591B (en) * | 2014-05-22 | 2017-12-08 | 北汽福田汽车股份有限公司 | Test the method for testing and system of AUTOSAR component softwares |
| CN106015549B (en) * | 2016-08-09 | 2019-05-21 | 徐州重型机械有限公司 | Gearshift operating device, control device, electric controlled gear shfiting system and control method |
| CN108167425A (en) * | 2016-12-07 | 2018-06-15 | 陈锦 | A kind of mechanical automatic transmission |
| CN107255159A (en) * | 2017-05-18 | 2017-10-17 | 上海蔚来汽车有限公司 | The shift control method and shifting control system of two-gear automatic speed changing case |
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