CN108501765B - Gear shifting control method and device for electric automobile and vehicle - Google Patents
Gear shifting control method and device for electric automobile and vehicle Download PDFInfo
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- CN108501765B CN108501765B CN201710116645.5A CN201710116645A CN108501765B CN 108501765 B CN108501765 B CN 108501765B CN 201710116645 A CN201710116645 A CN 201710116645A CN 108501765 B CN108501765 B CN 108501765B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention provides a gear shifting control method and device of an electric automobile and a vehicle, wherein the method comprises the following steps: detecting the speed of the vehicle; when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a forward gear to a reverse gear, the vehicle is controlled to slide, wherein the preset vehicle speed is greater than 0 km/h; controlling the gear state to a first intermediate state until the vehicle speed is reduced to a preset vehicle speed so as to control the vehicle to output negative torque; and when the vehicle speed is zero, the gear state is controlled to be switched to a reverse gear state from the first intermediate state. The control method can define the intermediate state appearing in the gear shifting process, thereby ensuring the output of the torque when the gear lever is shifted under different positions, preventing the sudden output of the torque, effectively ensuring the safety of the vehicle and improving the reliability of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a gear shifting control method and device of an electric automobile and a vehicle.
Background
Generally, an electric vehicle includes a motor and a decelerator, but there is no transmission, so that the gear function of the electric vehicle is different from that of a conventional vehicle.
In the related art, the basic gear states of the electric vehicle include a driving gear, a reverse gear, an intermediate gear and a parking gear, however, the four basic gear states are too simple, and particularly, the intermediate state occurring in the gear switching process is not clearly defined, so that when the gears are in the intermediate state, the vehicle controller cannot accurately identify the intermediate state, so that a fault occurs or the driving state is not clear, the vehicle driving function is influenced, the vehicle safety is influenced, and the reliability of the vehicle is reduced.
Disclosure of Invention
In view of this, the present invention is directed to a gear shift control method for an electric vehicle, which can effectively ensure the safety of the vehicle and improve the reliability of the vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a gear shifting control method of an electric automobile comprises the following steps: detecting the speed of the vehicle; when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a forward gear to a reverse gear, controlling the vehicle to slide, wherein the preset vehicle speed is greater than 0 km/h; controlling the gear state to a first intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output negative torque; and when the vehicle speed is zero, the gear state is controlled to be switched to a reverse gear state from the first intermediate state.
Further, when the shift state is the first intermediate state, the step of controlling the vehicle to output the negative torque includes: obtaining a value of negative torque according to the opening degree of an accelerator pedal and the vehicle speed; and controlling the vehicle to output corresponding negative torque by taking the value of the negative torque as a control target.
Further, still include: and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to the first intermediate state when the gear lever is switched from the forward gear to the reverse gear.
Further, still include: when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a reverse gear to a forward gear, controlling the vehicle to slide; controlling the gear state to a second intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output positive torque; when the vehicle speed is zero, the gear state is controlled to be changed into a forward gear state from the second intermediate state; and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to the second intermediate state when the gear lever is switched from the reverse gear to the forward gear.
Further, when the shift state is the second intermediate state, the step of controlling the vehicle to output the positive torque includes: obtaining a positive torque value according to the opening of an accelerator pedal and the vehicle speed; and controlling the vehicle to output corresponding positive torque by taking the value of the positive torque as a control target.
Compared with the prior art, the gear shifting control method of the electric automobile has the following advantages:
the gear-shifting control method of the electric automobile can define the intermediate state appearing in the gear-shifting process and perfect the gear definition of the electric automobile, thereby ensuring the output of the torque when the gear lever is shifted at different positions, preventing the sudden output of the torque, effectively ensuring the safety of the vehicle and improving the reliability of the vehicle.
Another object of the present invention is to provide a shift control device for an electric vehicle, which can effectively ensure the safety of the vehicle and improve the reliability of the vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a shift control device of an electric vehicle, comprising: the detection module is used for detecting the vehicle speed; the first control module is used for controlling the vehicle to slide when the vehicle speed is greater than a preset vehicle speed and the gear lever is switched from a forward gear to a reverse gear, controlling a gear state to a first intermediate state when the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output negative torque, and controlling the gear state to be switched from the first intermediate state to the reverse gear state when the vehicle speed is zero, wherein the preset vehicle speed is greater than 0 km/h.
Further, the first control module is also used for obtaining a value of negative torque according to the opening degree of an accelerator pedal and the vehicle speed, and controlling the vehicle to output corresponding negative torque by taking the value of the negative torque as a control target.
Further, still include: and the second control module is used for directly controlling the gear state to be in the first intermediate state when the gear lever is switched from the forward gear to the reverse gear when the vehicle speed is less than the preset vehicle speed.
Further, still include: the third control module is used for controlling the vehicle to slide when the vehicle speed is greater than the preset vehicle speed and the gear lever is switched from the reverse gear to the forward gear, and controlling the gear state to be in a second intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output positive torque; and the fourth control module is used for controlling the gear state to be switched from the second intermediate state to the forward gear state when the vehicle speed is zero, and directly controlling the gear state to be in the second intermediate state when the gear lever is switched from the reverse gear to the forward gear when the vehicle speed is less than the preset vehicle speed.
Compared with the prior art, the gear shifting control device of the electric automobile and the gear shifting control method of the electric automobile have the same advantages, and are not described again.
Another object of the present invention is to provide a vehicle, which can effectively ensure the safety of the vehicle and improve the reliability of the vehicle.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vehicle is provided with the shift control device of the electric vehicle according to the above embodiment.
Compared with the prior art, the vehicle and the gear shifting control device of the electric vehicle have the same advantages, and are not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flowchart illustrating a shift control method for an electric vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the system operation of an electric vehicle according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a shift control device of an electric vehicle according to an embodiment of the invention.
Description of reference numerals:
10-a gear shifting control device of an electric automobile, 100-a detection module and 200-a first control module.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Before describing the shift control method, the shift control device and the vehicle of the electric vehicle according to the embodiment of the invention, the importance of accurate shifting will be briefly described.
With the increasingly strict emission regulations and the increasingly severe energy crisis, new energy automobiles become the current and future trend of automobile development. The pure electric vehicle occupies a great proportion in the new energy vehicle. Due to the fact that regulations of pure electric vehicles are incomplete and the experience accumulated in the whole vehicle factory is insufficient, gear design functions of a plurality of pure electric vehicles are different. Pure electric vehicles is different from traditional vehicles, and the gear switching function cannot be realized by the traditional automatic vehicle stopping function. The gear of the electric vehicle directly influences the output of the vehicle torque, and if the gear is not clear, the output torque is unreasonable, so that great harm is brought to drivers and pedestrians.
The invention provides a gear shifting control method and device for an electric automobile and a vehicle based on the problems.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a flowchart of a shift control method and a shift control device for an electric vehicle according to an embodiment of the present invention.
As shown in fig. 1, the shift control method and control device for an electric vehicle according to the embodiment of the present invention includes the following steps:
step S101, vehicle speed is detected.
First, as shown in fig. 2 and table 1, table 1 is a table of correspondence between switch states and gear positions, and it can be understood that a VCU (Vehicle Control Unit) collects four gear analog signals SW1 to SW4(1 is high level, and 0 is low level), so as to determine P, R, N, D four gear positions according to the four switch states. And moreover, switching signals of the E gear and the E + gear are required to be collected. The gear sequence of the gear shifting assembly is P, R, N, D. It should be noted that the P gear, the E gear, and the E + gear are not involved, and detailed description is not given for reducing redundancy, and R represents a reverse gear, N represents a neutral gear, D represents a driving gear, i.e., a forward gear, and it is defined that the D gear is switched to the R gear as a first intermediate state, and the R gear is switched to the D gear as a second intermediate state, which is described in detail below.
TABLE 1
| SW1 | SW2 | SW3 | SW4 | |
| P keeps off | 1 | 1 | 0 | 0 |
| R gear | 1 | 0 | 1 | 0 |
| N keeps off | 0 | 1 | 0 | 1 |
| D gear | 0 | 1 | 1 | 0 |
And S102, when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a forward gear to a reverse gear, controlling the vehicle to slide, wherein the preset vehicle speed is greater than 0 km/h.
For example, when the vehicle speed is greater than 10km/h, the driver quickly switches the gear lever from the D gear to the R gear, and the current gear state can be judged according to the vehicle speed in the whole vehicle control, and if the vehicle speed is greater than 10km/h, the vehicle starts to slide.
And step S103, controlling the gear state to a first intermediate state until the vehicle speed is reduced to a preset vehicle speed so as to control the vehicle to output negative torque.
Further, after the engine is coasted to 10km/h, the engine enters a first intermediate state, and negative torque output is started.
And step S104, when the vehicle speed is zero, the gear state is controlled to be shifted to the reverse gear state from the first intermediate state.
That is, when the vehicle speed is 0km/h, the shift position formally enters the R shift position.
Further, in one embodiment of the present invention, the step of controlling the vehicle to output the negative torque when the range state is the first intermediate state includes: obtaining a value of negative torque according to the opening degree of an accelerator pedal and the vehicle speed; and controlling the vehicle to output corresponding negative torque by taking the value of the negative torque as a control target.
It is understood that the torque output is related to the accelerator opening and the vehicle speed, and is not particularly limited herein.
Additionally, in one embodiment of the present invention, the method of the embodiment of the present invention further comprises: and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to be in a first intermediate state when the gear lever is switched from the forward gear to the reverse gear.
That is, if the vehicle speed is less than 10km/h at the time of switching, the shift state can be directly entered into the first intermediate state, and after the vehicle speed is 0km/h, the R shift is entered.
Further, in an embodiment of the present invention, the method of an embodiment of the present invention further includes: when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a reverse gear to a forward gear, the vehicle is controlled to slide; controlling the gear state to a second intermediate state until the vehicle speed is reduced to a preset vehicle speed so as to control the vehicle to output positive torque; when the vehicle speed is zero, the gear state is controlled to be changed into a forward gear state from a second intermediate state; and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to be in a second intermediate state when the gear lever is switched from the reverse gear to the forward gear.
For example, when the vehicle speed is higher than 10km/h, a driver quickly switches a gear lever from an R gear to a D gear, the current gear state can be judged according to the vehicle speed in the whole vehicle control, when the vehicle speed is higher than 10km/h, the vehicle starts to slide, enters a second intermediate state after sliding to 10km/h, and starts to output positive torque, wherein the torque output is related to the opening degree of an accelerator pedal and the vehicle speed, and when the vehicle speed is 0km/h, the gear formally enters the D gear. And if the vehicle speed is less than 10km/h during switching, the gear state directly enters a second intermediate state, and after the vehicle speed is 0km/h, the D gear is entered.
Further, in one embodiment of the present invention, the step of controlling the vehicle to output positive torque when the range state is the second intermediate state includes: obtaining a positive torque value according to the opening degree of an accelerator pedal and the vehicle speed; and controlling the vehicle to output corresponding positive torque by taking the value of the positive torque as a control target.
It is understood that, as described above, the torque output is related to the accelerator opening and the vehicle speed, and is not particularly limited herein.
It should be noted that the above gear shifting is defined when the system is under high pressure, and the design can be modified by calibration.
Specifically, in the embodiment of the invention, the D gear is switched to the R gear or the R gear is switched to the D gear is defined in the vehicle controller, the torque output related factors in the intermediate gear state comprise the accelerator pedal opening degree and the vehicle speed, the display control strategy of the meter gear and the output control strategy of the torque of the vehicle controller are defined during the process that the vehicle is switched to the reverse gear from the forward gear under different vehicle speeds, the first intermediate gear state when the D gear is switched to the R gear and the second intermediate state when the R gear is switched to the D gear are defined, and therefore the gear definition of the electric vehicle is completed.
According to the gear-shifting control method of the electric automobile provided by the embodiment of the invention, the gear control function of the electric automobile is designed in more detail, the state of the gear lever is judged and processed after judgment, the judgment state of the whole vehicle controller and the processing strategy after judgment are defined when the intermediate state of the gear lever are in the middle state, the output of the torque is ensured when the gear lever is switched under different positions, the sudden output of the torque is prevented, the safety of a driver and pedestrians is damaged, the smooth output of the torque in the gear switching process can be ensured, the irregularity of the torque output caused by the switching of positive and negative torques when the gear lever is switched between an advancing gear and a backward gear is avoided, the running smoothness and good driving feeling of the vehicle are ensured, the intermediate state appearing in the gear switching process is defined, the gear definition of the electric automobile is perfected, and the output of the torque when the gear lever is switched under different positions is ensured, the torque is prevented from being output suddenly, the safety of the vehicle is effectively guaranteed, and the reliability of the vehicle is improved.
Further, as shown in fig. 3, an embodiment of the present invention also discloses a shift control device 10 for an electric vehicle, which includes: a detection module 100 and a first control module 200.
Specifically, as shown in FIG. 3, the detection module 100 is used to detect vehicle speed. When the vehicle speed is greater than the preset vehicle speed and the gear lever is switched from the forward gear to the reverse gear, the first control module 200 is used for controlling the vehicle to slide, controlling the gear state to be in a first intermediate state when the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output negative torque, and controlling the gear state to be switched from the first intermediate state to the reverse gear state when the vehicle speed is zero, wherein the preset vehicle speed is greater than 0 km/h.
Further, in one embodiment of the invention, the first control module 200 is further configured to obtain a value of the negative torque according to the accelerator opening and the vehicle speed, and control the vehicle to output the corresponding negative torque with the value of the negative torque as a control target.
Further, in one embodiment of the present invention, the apparatus 10 of the embodiment of the present invention further comprises: and a second control module. When the vehicle speed is less than the preset vehicle speed, the second control module is used for directly controlling the gear state to be in the first intermediate state when the gear lever is switched from the forward gear to the reverse gear.
Further, in one embodiment of the present invention, the apparatus 10 of the embodiment of the present invention further comprises: the device comprises a third control module and a fourth control module.
When the vehicle speed is greater than the preset vehicle speed and the gear lever is switched from the reverse gear to the forward gear, the third control module is used for controlling the vehicle to slide and controlling the gear state to be in the second intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output positive torque. When the vehicle speed is zero, the fourth control module is used for controlling the gear state to be switched from the second intermediate state to the forward gear state, and when the vehicle speed is less than the preset vehicle speed and the gear lever is switched from the reverse gear to the forward gear, the gear state is directly controlled to be in the second intermediate state.
It should be noted that, a specific implementation manner of the shift control device of the electric vehicle according to the embodiment of the present invention is similar to a specific implementation manner of the shift control method of the electric vehicle, and in order to reduce redundancy, details are not described here.
According to the gear-shifting control device of the electric automobile provided by the embodiment of the invention, the gear control function of the electric automobile is designed in more detail, the state of the gear lever is judged and processed after judgment, the judgment state of the whole vehicle controller and the processing strategy after judgment are defined when the intermediate state of the gear lever are in the middle state, the output of the torque is ensured when the gear lever is switched under different positions, the sudden output of the torque is prevented, the safety of a driver and pedestrians is damaged, the smooth output of the torque in the gear switching process can be ensured, the irregularity of the torque output caused by the switching of positive and negative torques when the gear lever is switched between an advancing gear and a backward gear is avoided, the running smoothness and good driving feeling of the vehicle are ensured, the intermediate state appearing in the gear switching process is defined, the gear definition of the electric automobile is perfected, and the output of the torque when the gear lever is switched under different positions is ensured, the torque is prevented from being output suddenly, the safety of the vehicle is effectively guaranteed, and the reliability of the vehicle is improved.
Further, an embodiment of the invention discloses a vehicle provided with the gear shift control device of the electric vehicle described in the above embodiment. The vehicle can ensure the torque output when the gear lever is switched under different positions by designing the gear control function of the electric vehicle in more detail and judging and processing the state of the gear lever after judgment due to the device, thereby preventing the torque from being suddenly output to harm the safety of drivers and pedestrians when the intermediate state of the gear lever is defined, ensuring the smooth output of the torque in the gear switching process, avoiding the unsmooth torque output caused by positive and negative torque switching when the gear lever is switched between an advancing gear and a backward gear, ensuring the smooth running of the vehicle and good driving feeling, perfecting the gear definition of the electric vehicle by defining the intermediate state appearing in the gear switching process, and ensuring the torque output when the gear lever is switched under different positions, the torque is prevented from being output suddenly, the safety of the vehicle is effectively guaranteed, and the reliability of the vehicle is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A gear shifting control method of an electric automobile is characterized by comprising the following steps:
detecting the speed of the vehicle;
when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a forward gear to a reverse gear, controlling the vehicle to slide, wherein the preset vehicle speed is greater than 0 km/h;
controlling a gear state to a first intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output negative torque, wherein when the gear state is the first intermediate state, the step of controlling the vehicle to output negative torque comprises the following steps: obtaining a value of negative torque according to the opening degree of an accelerator pedal and the vehicle speed; controlling the vehicle to output corresponding negative torque by taking the value of the negative torque as a control target; and
and when the vehicle speed is zero, the gear state is controlled to be switched to a reverse gear state from the first intermediate state.
2. The shift control method of the electric vehicle according to claim 1, characterized by further comprising:
and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to the first intermediate state when the gear lever is switched from the forward gear to the reverse gear.
3. The shift control method of the electric vehicle according to claim 1, characterized by further comprising:
when the vehicle speed is greater than the preset vehicle speed, if the gear lever is switched from a reverse gear to a forward gear, controlling the vehicle to slide;
controlling the gear state to a second intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output positive torque;
when the vehicle speed is zero, the gear state is controlled to be changed into a forward gear state from the second intermediate state;
and if the vehicle speed is less than the preset vehicle speed, directly controlling the gear state to the second intermediate state when the gear lever is switched from the reverse gear to the forward gear.
4. The shift control method of the electric vehicle according to claim 3, wherein the step of controlling the vehicle to output the positive torque when the shift state is the second intermediate state includes:
obtaining a positive torque value according to the opening of an accelerator pedal and the vehicle speed;
and controlling the vehicle to output corresponding positive torque by taking the value of the positive torque as a control target.
5. A shift control device for an electric vehicle, characterized by comprising:
the detection module is used for detecting the vehicle speed;
the first control module is used for controlling the vehicle to slide when the vehicle speed is greater than a preset vehicle speed and the gear lever is switched from a forward gear to a reverse gear, controlling a gear state to a first intermediate state when the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output negative torque, and controlling the gear state to be switched from the first intermediate state to the reverse gear state when the vehicle speed is zero, wherein the preset vehicle speed is greater than 0km/h, the first control module is further used for obtaining a value of the negative torque according to the opening degree of an accelerator pedal and the vehicle speed and controlling the vehicle to output corresponding negative torque by taking the value of the negative torque as a control target.
6. The shift control device for the electric vehicle according to claim 5, characterized by further comprising:
and the second control module is used for directly controlling the gear state to be in the first intermediate state when the gear lever is switched from the forward gear to the reverse gear when the vehicle speed is less than the preset vehicle speed.
7. The shift control device for the electric vehicle according to claim 5, characterized by further comprising:
the third control module is used for controlling the vehicle to slide when the vehicle speed is greater than the preset vehicle speed and the gear lever is switched from the reverse gear to the forward gear, and controlling the gear state to be in a second intermediate state until the vehicle speed is reduced to the preset vehicle speed so as to control the vehicle to output positive torque;
and the fourth control module is used for controlling the gear state to be switched from the second intermediate state to the forward gear state when the vehicle speed is zero, and directly controlling the gear state to be in the second intermediate state when the gear lever is switched from the reverse gear to the forward gear when the vehicle speed is less than the preset vehicle speed.
8. A vehicle, characterized by comprising: a shift control device of an electric vehicle according to any one of claims 5 to 7.
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| CN112196994B (en) * | 2019-12-17 | 2022-03-15 | 长城汽车股份有限公司 | Gear control method and system of two-gear reduction box |
| CN111022631B (en) * | 2019-12-30 | 2024-01-09 | 钦州绿传科技有限公司 | Electric automobile, gear shifting control method thereof and driving control device |
| CN111976503B (en) * | 2020-08-20 | 2021-11-23 | 华人运通(江苏)技术有限公司 | Torque control method, torque control device, vehicle, electronic device, and storage medium |
| CN112339576B (en) * | 2020-11-09 | 2022-05-13 | 中国第一汽车股份有限公司 | Vehicle torque control method and device, vehicle and storage medium |
| CN112644296B (en) * | 2021-01-05 | 2022-08-02 | 重庆长安新能源汽车科技有限公司 | Control method for driving torque of pure electric vehicle |
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| CN205578650U (en) * | 2016-02-24 | 2016-09-14 | 黄英可 | Speed variator |
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| JP5477662B2 (en) * | 2010-09-28 | 2014-04-23 | アイシン・エィ・ダブリュ株式会社 | Transmission and transmission control device |
| CN103587427B (en) * | 2012-08-16 | 2015-11-25 | 上海大众汽车有限公司 | Battery-driven car shift control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104514877A (en) * | 2014-12-25 | 2015-04-15 | 长城汽车股份有限公司 | Reverse gear locking mechanism, transmission with same and automobile with same |
| CN205578650U (en) * | 2016-02-24 | 2016-09-14 | 黄英可 | Speed variator |
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