CN113565952A - Gear shifting force correction control method and system for AMT (automated mechanical transmission) gearbox of new energy automobile - Google Patents
Gear shifting force correction control method and system for AMT (automated mechanical transmission) gearbox of new energy automobile Download PDFInfo
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- CN113565952A CN113565952A CN202110777742.5A CN202110777742A CN113565952A CN 113565952 A CN113565952 A CN 113565952A CN 202110777742 A CN202110777742 A CN 202110777742A CN 113565952 A CN113565952 A CN 113565952A
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- 238000012937 correction Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000009347 mechanical transmission Effects 0.000 title description 3
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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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
- F16H59/02—Selector apparatus
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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
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- Control Of Transmission Device (AREA)
Abstract
The utility model provides a new energy automobile AMT gearbox shifting force correction control method and system, which is used for acquiring the storage battery voltage and the environment temperature of the new energy automobile; obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature; obtaining a gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force; this openly controls the output of the motor drive power of shifting with the actual correction power of shifting, has solved the problem that the shift time is long, shift failure or gearbox damage that whole car complex environment caused.
Description
Technical Field
The disclosure relates to the technical field of new energy vehicles, in particular to a new energy vehicle AMT gearbox shifting force correction control method and system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The existing AMT gearbox is controlled by adopting a position fuzzy control mode mostly, actual gear position judgment and control are carried out according to signals collected by a gear shifting position sensor, gear shifting force control is controlled by adopting a proportionality coefficient correction mode or no gear shifting force correction mostly, and calibration and debugging are complex.
The whole vehicle service environment is complex, the low-voltage power source of the whole vehicle comes from a low-voltage storage battery, when a plurality of parts of the whole vehicle have high-power requirements at the same time, the power output of the storage battery is insufficient, the undervoltage condition is caused, the storage battery is overcharged, the overvoltage is caused, and when the transmission case is in a low or high environment temperature state, the TCU control is caused to be in a problem.
The inventor finds that in the TCU control algorithm, when a vehicle is in poor conditions such as low environmental temperature and different vehicle voltage, the resistance of a gearbox is high, the output of gear engaging driving force is insufficient, the gear shifting time is long, and even the gear shifting fails; when the battery is excessive pressure, the output of the gear shifting driving force is too large, the gear shifting impact is increased, the gear shifting time is too short, and the gear shifting failure probability and the risk of physical damage to the gearbox are increased.
Disclosure of Invention
In order to solve the defects of the prior art, the disclosure provides a gear shifting force correction control method and system for an AMT gearbox of a new energy automobile, so that the driving force output of a gear shifting motor is controlled by actual correction gear shifting force, and the problems of long gear shifting time, gear shifting failure or gearbox damage caused by the complex environment of the whole automobile are solved.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect of the disclosure provides a gear shifting force correction control method for an AMT gearbox of a new energy automobile.
A new energy automobile AMT gearbox shifting force correction control method comprises the following processes:
acquiring the voltage of a storage battery of the new energy automobile and the ambient temperature;
obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature;
and obtaining the gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force.
Further, the difference between the maximum gear shifting motor driving force and the minimum gear shifting motor driving force is multiplied by the gear shifting force input, and finally the gear shifting force is added with the minimum gear shifting motor driving force to obtain the gear shifting correction force.
Further, in the case of a shift force request;
when the gear shifting force input is larger than the lowest limiting value of the gear shifting force output, the gear shifting force output is gear shifting correction force;
and when the shifting force input is lower than the hysteresis of the lowest limiting value of the shifting force output, the shifting force output is zero.
Further, the ambient temperature is the engine intake temperature.
Further, according to the two-dimensional data corresponding to the voltage of the storage battery and the ambient temperature, the maximum gear shifting motor driving force and the minimum gear shifting motor driving force are obtained.
Furthermore, the range of the maximum gear shifting motor driving force and the range of the minimum gear shifting motor driving force are both 0-1.
Furthermore, the range of gear shifting force output is 0-1.
The second aspect of the disclosure provides a gear shifting force correction control system for an AMT (automated mechanical transmission) gearbox of a new energy automobile.
The utility model provides a new energy automobile AMT gearbox power of shifting revises control system, includes:
a data acquisition module configured to: acquiring the voltage of a storage battery of the new energy automobile and the ambient temperature;
a shift motor driving force acquisition module configured to: obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature;
a shift correction force acquisition module configured to: and obtaining the gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force.
A third aspect of the present disclosure provides a computer-readable storage medium, on which a program is stored, which when executed by a processor, implements the steps in the method for controlling the gear shifting force modification of the AMT gearbox of the new energy vehicle according to the first aspect of the present disclosure.
The fourth aspect of the present disclosure provides an electronic device, which includes a memory, a processor, and a program stored in the memory and executable on the processor, and when the processor executes the program, the steps in the method for controlling gear shifting force modification of an AMT gearbox of a new energy vehicle according to the first aspect of the present disclosure are implemented.
Compared with the prior art, the beneficial effect of this disclosure is:
1. the method, the system, the medium or the electronic equipment disclosed by the disclosure realize rapid correction under different environmental temperatures and different overall vehicle voltages, control the driving force output of the gear shifting motor directly by actual correction gear shifting force, solve the problems of long gear shifting time, gear shifting failure or gearbox damage caused by complex overall vehicle environments, are easier to calibrate and debug, do not need to debug repeatedly, and reduce the debugging time.
2. The method, the system, the medium or the electronic equipment solve the problem of insufficient or overlarge shifting force under different storage battery voltages and environmental temperatures, shorten the shifting force correction time, reduce the failure rate of gear shifting failure of the gearbox and reduce the risk of physical damage to the gearbox.
Advantages of additional aspects of the disclosure 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 disclosure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a control block diagram of a new energy automobile AMT gearbox shifting force correction control method provided in embodiment 1 of the present disclosure.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Example 1:
as shown in fig. 1, an embodiment 1 of the present disclosure provides a new energy automobile AMT transmission shifting force correction control method, including the following processes:
in the embodiment, the voltage and the temperature correction of the shifting force are added through the normal output part of the shifting force, and the shifting force is controlled by PWM.
The shift force correction needs to be adopted under the condition of a shift force request;
in a shift force output condition module (shf _ pwm _ on):
when the shift force input (SHF _ PWM _ in) is greater than the shift force output minimum LIMIT value (C _ SHF _ PWM _ OUT _ LIMIT), the shift force output (SHF _ PWM _ OUT) is the shift correction force (SHF _ PWM _ cor);
when the shift force input is below the shift force output minimum LIMIT hysteresis (C _ SHF _ PWM _ OUT _ LIMIT _ HYS), the shift force output is zero.
In the shifting force correction module (shf _ pwm _ cor):
the shift force correction inputs are battery Voltage (VB) and ambient temperature (TIA, engine intake temperature is adopted);
outputting a maximum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MAX __ VB __ TIA) and a minimum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MIN __ VB __ TIA) through two-dimensional data corresponding to different VB and TIA;
and multiplying the difference value of the maximum gear shifting motor driving force and the minimum gear shifting motor driving force by the gear shifting force input, and finally adding the difference value and the minimum gear shifting motor driving force to output gear shifting correction force.
The maximum and minimum gear shift motor driving force data can be obtained through experimental tests, and data which is more prone to actual environment is taken as a control basis.
The specific control amounts are as follows:
inputting variables:
shf _ pwm _ in: inputting a shifting force;
VB: a battery voltage;
TIA: the engine intake air temperature.
And (3) variable output:
shf _ pwm _ out: shift force output, range 0-1.
Calibration amount:
c _ SHF _ PWM _ OUT _ LIMIT: a shift force output minimum limit value;
c _ SHF _ PWM _ OUT _ LIMIT _ HYS: the lowest limit value hysteresis of the gear shifting force output;
IP _ SHF _ MOT _ PWM _ MAX __ VB __ TIA: the maximum gear shifting motor driving force is in the range of 0-1;
IP _ SHF _ MOT _ PWM _ MIN __ VB __ TIA: minimum shift motor drive force, range 0-1.
Example 2:
the embodiment 2 of the present disclosure provides a new energy automobile AMT gearbox power of shifting correction control system, include:
a data acquisition module configured to: acquiring the voltage of a storage battery of the new energy automobile and the ambient temperature;
a shift motor driving force acquisition module configured to: obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature;
a shift correction force acquisition module configured to: and obtaining the gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force.
The working method of the system is the same as the gear shifting force correction control method of the AMT gearbox of the new energy automobile provided by the embodiment 1, and details are not repeated here.
Example 3:
the embodiment 3 of the present disclosure provides a computer-readable storage medium, on which a program is stored, where the program, when executed by a processor, implements the steps in the method for controlling gear shifting force modification of an AMT transmission of a new energy vehicle according to embodiment 1 of the present disclosure, where the steps are:
when the shift force input (SHF _ PWM _ in) is greater than the shift force output minimum LIMIT value (C _ SHF _ PWM _ OUT _ LIMIT), the shift force output (SHF _ PWM _ OUT) is the shift correction force (SHF _ PWM _ cor);
when the shift force input is below the shift force output minimum LIMIT hysteresis (C _ SHF _ PWM _ OUT _ LIMIT _ HYS), the shift force output is zero.
The shift force correction inputs are battery Voltage (VB) and ambient temperature (TIA, engine intake temperature is adopted);
outputting a maximum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MAX __ VB __ TIA) and a minimum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MIN __ VB __ TIA) through two-dimensional data corresponding to different VB and TIA;
and multiplying the difference value of the maximum gear shifting motor driving force and the minimum gear shifting motor driving force by the gear shifting force input, and finally adding the difference value and the minimum gear shifting motor driving force to output gear shifting correction force.
The detailed steps are the same as those in embodiment 1 and are not described herein again.
Example 4:
the embodiment 4 of the present disclosure provides an electronic device, which includes a memory, a processor, and a program stored in the memory and capable of running on the processor, where the processor executes the program to implement the steps in the method for controlling gear shifting force modification of an AMT transmission of a new energy vehicle according to embodiment 1 of the present disclosure, where the steps are as follows:
when the shift force input (SHF _ PWM _ in) is greater than the shift force output minimum LIMIT value (C _ SHF _ PWM _ OUT _ LIMIT), the shift force output (SHF _ PWM _ OUT) is the shift correction force (SHF _ PWM _ cor);
when the shift force input is below the shift force output minimum LIMIT hysteresis (C _ SHF _ PWM _ OUT _ LIMIT _ HYS), the shift force output is zero.
The shift force correction inputs are battery Voltage (VB) and ambient temperature (TIA, engine intake temperature is adopted);
outputting a maximum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MAX __ VB __ TIA) and a minimum gear shifting motor driving force (IP _ SHF _ MOT _ PWM _ MIN __ VB __ TIA) through two-dimensional data corresponding to different VB and TIA;
and multiplying the difference value of the maximum gear shifting motor driving force and the minimum gear shifting motor driving force by the gear shifting force input, and finally adding the difference value and the minimum gear shifting motor driving force to output gear shifting correction force.
The detailed steps are the same as those in embodiment 1 and are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. The utility model provides a new energy automobile AMT gearbox power of shifting correction control method which characterized in that: the method comprises the following steps:
acquiring the voltage of a storage battery of the new energy automobile and the ambient temperature;
obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature;
and obtaining the gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force.
2. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
and multiplying the difference value of the maximum gear shifting motor driving force and the minimum gear shifting motor driving force by the gear shifting force input, and finally adding the difference value and the minimum gear shifting motor driving force to obtain the gear shifting correction force.
3. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
in the event of a shift force request;
when the gear shifting force input is larger than the lowest limiting value of the gear shifting force output, the gear shifting force output is gear shifting correction force;
and when the shifting force input is lower than the hysteresis of the lowest limiting value of the shifting force output, the shifting force output is zero.
4. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
the ambient temperature is the engine intake temperature.
5. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
and obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the two-dimensional data corresponding to the voltage of the storage battery and the ambient temperature.
6. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
the range of the maximum gear shifting motor driving force and the range of the minimum gear shifting motor driving force are both 0-1.
7. The method for controlling the gear shifting force correction of the AMT gearbox of the new energy automobile according to claim 1, characterized in that:
the range of the gear shifting force output is 0-1.
8. The utility model provides a new energy automobile AMT gearbox power of shifting revises control system which characterized in that: the method comprises the following steps:
a data acquisition module configured to: acquiring the voltage of a storage battery of the new energy automobile and the ambient temperature;
a shift motor driving force acquisition module configured to: obtaining the maximum gear shifting motor driving force and the minimum gear shifting motor driving force according to the acquired storage battery voltage and the acquired environment temperature;
a shift correction force acquisition module configured to: and obtaining the gear shifting correction force according to the input of the maximum gear shifting motor driving force, the minimum gear shifting motor driving force and the gear shifting force.
9. A computer readable storage medium, having a program stored thereon, where the program is executed by a processor to implement the steps in the method for controlling the modification of the shifting force of the AMT gearbox of the new energy vehicle according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor and a program stored in the memory and running on the processor, wherein the processor executes the program to implement the steps of the method according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110777742.5A CN113565952A (en) | 2021-07-07 | 2021-07-07 | Gear shifting force correction control method and system for AMT (automated mechanical transmission) gearbox of new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110777742.5A CN113565952A (en) | 2021-07-07 | 2021-07-07 | Gear shifting force correction control method and system for AMT (automated mechanical transmission) gearbox of new energy automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217961A (en) * | 2022-07-07 | 2022-10-21 | 东风汽车集团股份有限公司 | Gear shifting system control method and related equipment |
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| CN109838551A (en) * | 2019-03-25 | 2019-06-04 | 法可赛(太仓)汽车配件有限公司 | Control method, device and the shifting control system of gear shifting actuating mechanism |
| CN111120644A (en) * | 2018-11-01 | 2020-05-08 | 郑州宇通客车股份有限公司 | Power-interruption-free gear shifting control method and system for hybrid vehicle |
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2021
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| US5806009A (en) * | 1995-07-05 | 1998-09-08 | Unisia Jecs Corporation | Shift control apparatus and method for automatic transmission of vehicle |
| CN103963778A (en) * | 2013-02-04 | 2014-08-06 | 广州汽车集团股份有限公司 | Hybrid vehicle shifting assistance control method and corresponding hybrid vehicle |
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| CN115217961A (en) * | 2022-07-07 | 2022-10-21 | 东风汽车集团股份有限公司 | Gear shifting system control method and related equipment |
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Application publication date: 20211029 |