CN113983157A - Transmission control method, transmission control system and vehicle - Google Patents
Transmission control method, transmission control system and vehicle Download PDFInfo
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- CN113983157A CN113983157A CN202010729717.5A CN202010729717A CN113983157A CN 113983157 A CN113983157 A CN 113983157A CN 202010729717 A CN202010729717 A CN 202010729717A CN 113983157 A CN113983157 A CN 113983157A
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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
- F16H61/04—Smoothing ratio shift
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/38—Inputs being a function of speed of gearing elements
- F16H59/40—Output shaft speed
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
- F16H2059/148—Transmission output torque, e.g. measured or estimated torque at output drive shaft
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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
- F16H2061/0012—Transmission control for optimising power output of driveline
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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
- F16H2061/0078—Linear control, e.g. PID, state feedback or Kalman
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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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- 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
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
- F16H2710/04—Control dependent on speed
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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
- F16H2710/00—Control devices for speed-change mechanisms, the speed change control is dependent on function parameters of the gearing
- F16H2710/24—Control dependent on torque
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a transmission control method, a transmission control system and a vehicle, wherein the transmission control method of the vehicle comprises the following steps: after the gear shifting control signal is detected, acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle, controlling the output torque of the transmission to output in the calibration torque, and detecting the actual output rotating speed of the transmission; the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, and adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed; obtaining a torque correction self-learning value according to the integral control correction value; and after the gear shifting control signal is detected again, controlling the output torque of the transmission to be output by the sum of the calibration torque and the torque correction self-learning value. The vehicle transmission control method has the advantages of being capable of achieving a self-learning function, reducing gear shifting pause and frustration and the like.
Description
Technical Field
The invention relates to the technical field of vehicle engineering, in particular to a transmission control method of a vehicle, a non-transitory computer-readable storage medium for realizing the transmission control method of the vehicle, a transmission control system of the vehicle and the vehicle with the transmission control system of the vehicle.
Background
In the automatic gearbox in the related art, because the production consistency is different, the same control parameters are adopted in the gear shifting process, and the performance of different gearboxes is greatly different, so that the problem of gear shifting pause is caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a vehicle transmission control method which has the advantages of realizing a self-learning function, reducing gear shifting pause and the like.
The invention also proposes a non-transitory computer-readable storage medium on which a computer program is stored which, when executed by a processor, implements the transmission control method of the vehicle.
The invention also provides a transmission control system of the vehicle.
The invention also provides a vehicle with the transmission control system of the vehicle.
To achieve the above object, an embodiment according to a first aspect of the present invention proposes a transmission control method of a vehicle including a PID control module, the control method including the steps of:
A) after a gear shifting control signal is detected, acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle, controlling the output torque of the transmission to be output with the calibration torque, and detecting the actual output rotating speed of the transmission;
B) the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, and adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed;
C) obtaining a torque correction self-learning value according to the integral control correction value;
D) recording the torque correction self-learning value;
E) and after the gear shifting control signal is detected again, controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value.
The vehicle transmission control method has the advantages of being capable of achieving a self-learning function, reducing gear shifting pause and frustration and the like.
In addition, the transmission control method of the vehicle according to the above-described embodiment of the invention may also have the following additional technical features:
according to one embodiment of the invention, the torque correction self-learning value is the integral control correction value after stopping changing within a predetermined interval.
According to one embodiment of the invention, the occupant is alerted when the torque corrected self-learned value exceeds a predetermined limit.
According to an embodiment of the present invention, the transmission control method of a vehicle further includes the steps of:
F) and B, after controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value, detecting the actual output rotating speed of the transmission, if the actual output rotating speed is different from the target output rotating speed, repeating the step B, and updating the torque correction self-learning value according to the integral control correction value.
An embodiment according to a second aspect of the invention proposes a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the transmission control method of the vehicle according to the first aspect of the invention.
According to the non-transitory computer readable storage medium of the embodiment of the invention, by using the transmission control method of the vehicle according to the embodiment of the first aspect of the invention, the advantages of self-learning function, reduction of gear shift setback and the like can be realized.
An embodiment according to a third aspect of the invention proposes a transmission control system of a vehicle, including: the gear shifting controller is used for acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle and controlling the output torque of the transmission to be output with the calibration torque after detecting a gear shifting control signal; rotation speed detection means that detects an actual output rotation speed of the transmission; the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, the gear shifting controller adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed, and a torque correction self-learning value is obtained according to the integral control correction value; and the storage module records the torque correction self-learning value, and after the gear shifting controller detects a gear shifting control signal again, the gear shifting controller controls the output torque of the transmission to be output by the sum of the calibration torque and the torque correction self-learning value recorded by the storage module.
According to one embodiment of the invention, the torque correction self-learning value is the integral control correction value after stopping changing within a predetermined interval.
According to one embodiment of the invention, the transmission control system of the vehicle further includes an alarm device that alarms an occupant when the torque correction self-learning value is equal to or greater than a predetermined limit value.
According to an embodiment of the invention, after the shift controller controls the output torque of the transmission to be output as the sum of the calibration torque and the torque correction self-learning value recorded by the storage module, the rotation speed detection device detects the actual output rotation speed of the transmission, if the actual output rotation speed detected by the rotation speed detection device is different from the target output rotation speed, the PID control module generates an integral control correction value according to the actual output rotation speed and the target output rotation speed, the shift controller adjusts the output torque of the transmission according to the integral control correction value so that the actual output rotation speed is consistent with the target output rotation speed, and updates the torque correction self-learning value according to the integral control correction value.
The transmission control system of the vehicle has the advantages of being capable of achieving a self-learning function, reducing gear shifting pause and frustration and the like.
An embodiment according to a fourth aspect of the invention proposes a vehicle including the transmission control system of the vehicle according to the embodiment of the third aspect of the invention.
According to the vehicle provided by the embodiment of the invention, the transmission control system of the vehicle provided by the embodiment of the third aspect of the invention has the advantages of realizing a self-learning function, reducing gear shifting pause and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a transmission control method of a vehicle according to an embodiment of the invention.
Fig. 2 is a numerical change diagram of a transmission control method of a vehicle according to an embodiment of the invention.
Reference numerals: the method comprises the following steps of 1 target output rotating speed, 2 actual output rotating speed, 3 self-learning value, 4 integral control correction value, 5 control enable, 6 self-learning enable, 7 calibrated torque, 8 self-learning change value and 9 sum of calibrated torque and torque correction self-learning value.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A transmission control method of a vehicle according to an embodiment of the invention is described below with reference to the drawings.
As shown in fig. 1 and 2, the vehicle includes a PID control module, and a transmission control method of the vehicle according to an embodiment of the present invention includes the steps of:
A) after a gear shifting control signal is detected, acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle, controlling the output torque of the transmission to be output with the calibration torque, and detecting the actual output rotating speed of the transmission;
B) the PID control module generates an integral control correction value (I-direction value) according to the actual output rotating speed and the target output rotating speed, and adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed;
C) obtaining a torque correction self-learning value according to the integral control correction value;
D) recording the torque correction self-learning value;
E) and after the gear shifting control signal is detected again, controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value.
It will be appreciated by those skilled in the art that the PID control module can be configured by those skilled in the art based on experience, limited experimentation, big data analysis, and the like.
The target output rotation speed can be obtained by those skilled in the art according to actual needs.
The calibrated torque may be pre-stored in a control system of the vehicle.
According to the control method of the vehicle transmission, an integral control correction value generated by the PID control module when the rotating speed error is corrected during the first gear shifting is converted into the torque correction self-learning value and stored, and the torque correction self-learning value is directly added to the calibration torque in a compensation mode to be output as a numerical value of the whole torque when the gear shifting is performed again, so that the self-learning of the control process of the transmission is realized, the deviation of the torque control value can be reduced, the deviation of the actual output rotating speed and the target output rotating speed is reduced, the gear shifting control process is accelerated, and the gear shifting problem is solved.
It will be understood by those skilled in the art that the torque correction self-learning value can be obtained by limited experimentation and big data analysis based on the integral control correction value. For example, the torque correction self-learning value may be equal to the integrated control correction value after stabilization within a certain range interval. But not limited to this, also can calculate according to certain proportional relation and obtain, as long as can produce certain compensatory action to the moment of torsion, all can reduce the deviation of control value to a certain extent, accelerate the process of gear shift control, improve the problem of gear shift pause and frustrate.
Therefore, the transmission control method of the vehicle according to the embodiment of the invention has the advantages of realizing a self-learning function, reducing gear shifting delay and the like.
A transmission control method of a vehicle according to a specific embodiment of the invention is described below with reference to the drawings.
Specifically, the torque correction self-learning value is the integral control correction value after the change is stopped within a predetermined interval. Those skilled in the art can understand that the value range of the predetermined interval can be obtained by limited experiments, big data analysis, and the like according to actual needs. Thus, during the correction of the PID control module, when the integral control correction value stops changing and falls within the predetermined interval, the integral control correction value is recorded as the torque correction self-learning value. Therefore, the torque correction self-learning value can be equal to the stabilized integral control correction value, and the compensation effect and accuracy of the torque control value are improved.
Advantageously, the torque corrected self-learned value is alerted to the occupant when it exceeds a predetermined limit. It will be understood by those skilled in the art that the value range of the predetermined limit can be obtained by limited experiments and big data analysis according to actual needs. The alarm mode can be one or more of sound, light and the like. This may alert the occupant when the torque corrected self-learned value is too large, indicating that the occupant may be malfunctioning.
More specifically, the transmission control method of the vehicle further includes the steps of:
F) and B, after controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value, detecting the actual output rotating speed of the transmission, if the actual output rotating speed is different from the target output rotating speed, repeating the step B, and updating the torque correction self-learning value according to the integral control correction value. Therefore, when the rotating speed deviation still exists due to errors or abrasion after the torque correction self-learning value is used for compensation, the PID control module is used for correcting again, the torque correction self-learning value is updated according to the integral control correction value, and the accuracy of the next output torque is guaranteed.
Specifically, steps D-F may be performed cyclically. Therefore, the torque correction self-learning value can be continuously updated in the subsequent gear shifting process, and the compensation effect on the torque control value is prevented from being influenced due to the error increase caused by long-time abrasion.
The control procedure of the transmission control method of the vehicle according to one embodiment of the invention is described below with reference to fig. 2:
at the moment a, after a gear shifting control signal is detected, a control enable 5 enters to request to control the actual output rotating speed 2 to reach the target output rotating speed 1, but errors are generated due to poor consistency of the transmission and the like, and after the transmission is controlled to output with a calibrated torque 7, the actual output rotating speed 2 has a certain error with the target output rotating speed 1;
in the stage a-b, because the deviation exists, the PID control module starts to correct the deviation, the integral control correction value 4 is gradually increased, the output torque of the transmission is synchronously increased according to the integral control correction value 4, and the actual output rotating speed 2 is gradually close to the target output rotating speed 1;
in the stage b-c, the integral control correction value 4 is stable;
c-d, enabling a self-learning enable 6 to enter, gradually increasing a self-learning value 3 to generate a self-learning change value 8, gradually restoring an integral control correction value 4 to an initial value, and recording the self-learning value 3 at the moment as a torque correction self-learning value;
at the moment e, the gear shifting control process is finished, and the control enable 5 is quitted;
and f, after the gear shifting control signal is detected again, the control enable 5 enters again, and the output torque of the transmission is controlled to be assigned according to the sum 9 of the calibrated torque 7 and the torque correction self-learning value, so that the actual output rotating speed 2 is consistent with the target output rotating speed 1.
Therefore, the output torque of the transmission can be directly assigned to the self-learned control value when the gear shifting process is faced again, and gear shifting delay is reduced.
It can be understood by those skilled in the art that the parameters such as the self-learning step size and the upper and lower limits can be obtained by those skilled in the art according to limited experiments and big data analysis.
The following describes a non-transitory computer-readable storage medium according to an embodiment of the present invention. A non-transitory computer-readable storage medium according to an embodiment of the present invention has stored thereon a computer program that, when executed by a processor, implements the transmission control method of a vehicle as in the above-described embodiment.
According to the non-transitory computer readable storage medium of the embodiment of the present invention, by using the transmission control method of the vehicle according to the above-described embodiment of the present invention, there are advantages in that a self-learning function can be realized, gear shift setback is reduced, and the like.
The following describes a transmission control system of a vehicle according to an embodiment of the invention. The transmission control system of the vehicle according to the embodiment of the invention comprises a gear shifting controller, a rotating speed detection device, a PID control module and a storage module.
After the gear shifting controller detects a gear shifting control signal, acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle, and controlling the output torque of the transmission to be output with the calibration torque; the rotational speed detection means detects an actual output rotational speed of the transmission; the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, the gear shifting controller adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed, and a torque correction self-learning value is obtained according to the integral control correction value; the storage module records the torque correction self-learning value, and the gear shifting controller controls the output torque of the transmission to be output by the sum of the calibration torque and the torque correction self-learning value recorded by the storage module after detecting the gear shifting control signal again.
According to the transmission control system of the vehicle, the integral control correction value generated by the PID control module when the rotating speed error is corrected during the first gear shifting is converted into the torque correction self-learning value and stored, and the torque correction self-learning value is directly added to the calibration torque in a compensation mode to be output as the numerical value of the whole torque when the gear shifting is performed again, so that the self-learning of the transmission control process is realized, the deviation of the torque control value can be reduced, the deviation of the actual output rotating speed and the target output rotating speed is reduced, the gear shifting control process is accelerated, and the gear shifting problem is solved.
Specifically, the torque correction self-learning value is the integral control correction value after the change is stopped within a predetermined interval. Therefore, the torque correction self-learning value can be equal to the stabilized integral control correction value, and the compensation effect and accuracy of the torque control value are improved.
Advantageously, the transmission control system of the vehicle further includes an alarm device that alarms an occupant when the torque correction self-learning value is equal to or greater than a predetermined limit value. This may alert the occupant when the torque corrected self-learned value is too large, indicating that the occupant may be malfunctioning.
More specifically, after the shift controller controls the output torque of the transmission to be output as the sum of the calibrated torque and the torque correction self-learning value recorded by the storage module, the rotation speed detection device detects the actual output rotation speed of the transmission, if the actual output rotation speed detected by the rotation speed detection device is different from the target output rotation speed, the PID control module generates an integral control correction value according to the actual output rotation speed and the target output rotation speed, the shift controller adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotation speed to be consistent with the target output rotation speed, and updates the torque correction self-learning value according to the integral control correction value. Therefore, when the rotating speed deviation still exists due to errors or abrasion after the torque correction self-learning value is used for compensation, the PID control module is used for correcting again, the torque correction self-learning value is updated according to the integral control correction value, and the accuracy of the next output torque is guaranteed.
A vehicle according to an embodiment of the invention is described below. A vehicle according to an embodiment of the invention includes the transmission control system of the vehicle according to the above-described embodiment of the invention.
According to the vehicle provided by the embodiment of the invention, the transmission control system of the vehicle provided by the embodiment of the invention has the advantages of realizing a self-learning function, reducing gear shifting pause and the like.
Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A transmission control method of a vehicle including a PID control module, the control method comprising the steps of:
A) after a gear shifting control signal is detected, acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle, controlling the output torque of the transmission to be output with the calibration torque, and detecting the actual output rotating speed of the transmission;
B) the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, and adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed;
C) obtaining a torque correction self-learning value according to the integral control correction value;
D) recording the torque correction self-learning value;
E) and after the gear shifting control signal is detected again, controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value.
2. The transmission control method of a vehicle according to claim 1, characterized in that the torque correction self-learning value is the integral control correction value after stopping the change in a predetermined interval.
3. The vehicle transmission control method according to claim 1, characterized in that the occupant is alerted after the torque corrected self-learning value exceeds a predetermined limit.
4. The transmission control method of a vehicle according to claim 1, characterized by further comprising the step of:
F) and B, after controlling the output torque of the transmission to be output by the sum of the calibrated torque and the torque correction self-learning value, detecting the actual output rotating speed of the transmission, if the actual output rotating speed is different from the target output rotating speed, repeating the step B, and updating the torque correction self-learning value according to the integral control correction value.
5. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements a transmission control method of a vehicle according to any one of claims 1 to 4.
6. A transmission control system of a vehicle, characterized by comprising:
the gear shifting controller is used for acquiring a target output rotating speed and a calibration torque of a transmission of the vehicle and controlling the output torque of the transmission to be output with the calibration torque after detecting a gear shifting control signal;
rotation speed detection means that detects an actual output rotation speed of the transmission;
the PID control module generates an integral control correction value according to the actual output rotating speed and the target output rotating speed, the gear shifting controller adjusts the output torque of the transmission according to the integral control correction value to enable the actual output rotating speed to be consistent with the target output rotating speed, and a torque correction self-learning value is obtained according to the integral control correction value;
and the storage module records the torque correction self-learning value, and after the gear shifting controller detects a gear shifting control signal again, the gear shifting controller controls the output torque of the transmission to be output by the sum of the calibration torque and the torque correction self-learning value recorded by the storage module.
7. The transmission control system of a vehicle according to claim 6, characterized in that the torque correction self-learning value is the integral control correction value after stopping changing within a predetermined interval.
8. The vehicle transmission control system according to claim 6, further comprising an alarm device that alarms an occupant when the torque correction self-learning value is equal to or greater than a predetermined limit value.
9. The transmission control system of a vehicle according to claim 6, wherein after the shift controller controls the output torque of the transmission to be output as a sum of the calibrated torque and the torque correction self-learning value recorded by the storage module, the rotation speed detection means detects an actual output rotation speed of the transmission, the PID control module generates an integral control correction value based on the actual output rotation speed and the target output rotation speed if the actual output rotation speed detected by the rotation speed detection means is different from the target output rotation speed, the shift controller adjusts the output torque of the transmission based on the integral control correction value so that the actual output rotation speed coincides with the target output rotation speed, and updates the torque correction self-learning value based on the integral control correction value.
10. A vehicle characterized by comprising a transmission control system of a vehicle according to any one of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729717.5A CN113983157A (en) | 2020-07-27 | 2020-07-27 | Transmission control method, transmission control system and vehicle |
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Citations (5)
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|---|---|---|---|---|
| CN103742278A (en) * | 2013-12-20 | 2014-04-23 | 联合汽车电子有限公司 | Engine rotating speed control system and method in gear shifting process |
| CN104228606A (en) * | 2014-08-30 | 2014-12-24 | 重庆长安汽车股份有限公司 | Control method for eliminating jitter of pure electric vehicle |
| CN106907481A (en) * | 2015-12-22 | 2017-06-30 | 上海汽车集团股份有限公司 | Engine torque control method and automobile |
| CN107264338A (en) * | 2017-06-29 | 2017-10-20 | 北京新能源汽车股份有限公司 | Anti-sliding control method and system based on rear-drive electric vehicle |
| CN108757921A (en) * | 2018-06-28 | 2018-11-06 | 安徽江淮汽车集团股份有限公司 | Wet dual-clutch automatic transmission wriggling control method and control system |
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2020
- 2020-07-27 CN CN202010729717.5A patent/CN113983157A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742278A (en) * | 2013-12-20 | 2014-04-23 | 联合汽车电子有限公司 | Engine rotating speed control system and method in gear shifting process |
| CN104228606A (en) * | 2014-08-30 | 2014-12-24 | 重庆长安汽车股份有限公司 | Control method for eliminating jitter of pure electric vehicle |
| CN106907481A (en) * | 2015-12-22 | 2017-06-30 | 上海汽车集团股份有限公司 | Engine torque control method and automobile |
| CN107264338A (en) * | 2017-06-29 | 2017-10-20 | 北京新能源汽车股份有限公司 | Anti-sliding control method and system based on rear-drive electric vehicle |
| CN108757921A (en) * | 2018-06-28 | 2018-11-06 | 安徽江淮汽车集团股份有限公司 | Wet dual-clutch automatic transmission wriggling control method and control system |
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