CN114537418B - Method and system for generating accelerator pedal characteristics - Google Patents
Method and system for generating accelerator pedal characteristics Download PDFInfo
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- CN114537418B CN114537418B CN202210242654.XA CN202210242654A CN114537418B CN 114537418 B CN114537418 B CN 114537418B CN 202210242654 A CN202210242654 A CN 202210242654A CN 114537418 B CN114537418 B CN 114537418B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
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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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- 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
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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Abstract
The embodiment of the application provides a method and a system for generating accelerator pedal characteristics, and relates to the technical field of vehicles. The method for generating the accelerator pedal characteristics comprises the following steps: acquiring the whole vehicle parameters and drivability target parameters of a vehicle; obtaining vehicle speed-acceleration curve data under a set accelerator according to a first preset acceleration change condition in the drivability target parameter; acquiring accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and a second preset acceleration change condition in the drivability target parameter; acquiring required torque curve data of a set vehicle speed according to the whole vehicle parameters and accelerator opening-acceleration curve data of the set vehicle speed; and generating calibration parameters of the characteristics of the accelerator pedal according to the data of the required torque curve of the set vehicle speed. The method for generating the characteristics of the accelerator pedal can achieve the technical effect of improving the data reliability and the working efficiency.
Description
Technical Field
The present invention relates to the field of vehicle technologies, and in particular, to a method and a system for generating accelerator pedal characteristics, an electronic device, and a computer readable storage medium.
Background
The accelerator Pedal characteristic (Pedal map) of the vehicle is a corresponding curve among the depth of the accelerator Pedal, the speed of the vehicle and the power of the engine; the existing accelerator pedal characteristic generation method generally adopts a mode of manual calculation and/or a simple calculation formula, firstly, a required torque curve of 100% of accelerator opening is determined according to the external characteristic of a power train, then a required torque curve of 0% of accelerator opening is determined according to a sliding deceleration target, and finally, a required torque curve of 0-100% of accelerator is calculated according to a driving performance target. In the prior art, the drivability target of the vehicle is complicated, the manual calculation is easy to make mistakes, and the data reliability is poor; in addition, when some drivability targets are frequently changed, the calculation amount of the accelerator pedal characteristic is large, and the work efficiency is low.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method, a system, an electronic device, and a computer readable storage medium for generating characteristics of an accelerator pedal, which can achieve the technical effect of improving data reliability and working efficiency.
In a first aspect, an embodiment of the present application provides a method for generating an accelerator pedal characteristic, including:
acquiring the whole vehicle parameters and drivability target parameters of a vehicle;
obtaining vehicle speed-acceleration curve data under a set accelerator according to a first preset acceleration change condition in the drivability target parameter;
acquiring accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and a second preset acceleration change condition in the drivability target parameter;
acquiring required torque curve data of a set vehicle speed according to the whole vehicle parameters and accelerator opening-acceleration curve data of the set vehicle speed;
and generating calibration parameters of the characteristics of the accelerator pedal according to the data of the required torque curve of the set vehicle speed.
In the implementation process, after the whole vehicle parameter and the drivability target parameter of the vehicle are obtained in the method for generating the accelerator pedal characteristic, the vehicle speed-acceleration curve data under the set accelerator and the accelerator opening-acceleration curve data under the set vehicle speed are sequentially obtained through the first preset acceleration change condition and the second preset acceleration change condition, so that the required torque curve data of the set vehicle speed is obtained, and finally, the calibration parameter of the accelerator pedal characteristic is generated, and the calibration of the accelerator pedal characteristic is realized; after the whole vehicle parameters and the drivability target parameters are obtained, the rest steps can be automatically calculated by a computer, so that the dependence on people is reduced, and the manual operation errors are reduced; the calculation efficiency of the computer is far higher than that of manual calculation, and the complicated multi-performance target setting can be accurately realized; therefore, the method can achieve the technical effect of improving the data reliability and the working efficiency.
Further, the first preset acceleration change condition is an acceleration change relation between preset accelerator feature points, and the step of obtaining the vehicle speed-acceleration curve data under the set accelerator according to the first preset acceleration change condition in the drivability target parameter includes:
acquiring the preset accelerator characteristic points according to the drivability target parameters, wherein the preset accelerator characteristic points comprise at least two accelerator characteristic point data;
and obtaining the vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change condition.
Further, the second preset acceleration change condition is an acceleration change relation between preset vehicle speed feature points, and the step of obtaining accelerator opening-acceleration curve data under the set vehicle speed according to the set vehicle speed-acceleration curve data under the accelerator and the second preset acceleration change condition in the drivability target parameter includes:
acquiring the preset vehicle speed characteristic points according to the drivability target parameters and the vehicle speed-acceleration curve data under the set accelerator, wherein the preset vehicle speed characteristic points comprise at least two vehicle speed characteristic point data;
and acquiring accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
Further, the step of obtaining the required torque curve data of the set vehicle speed according to the whole vehicle parameter and the accelerator opening-acceleration curve data of the set vehicle speed comprises the following steps:
converting acceleration data in accelerator opening-acceleration curve data under the set vehicle speed into required torque data according to the whole vehicle parameters and a preset conversion formula;
and obtaining the required torque curve data of the set vehicle speed according to the accelerator opening-acceleration curve data and the required torque data of the set vehicle speed.
Further, the whole vehicle parameters comprise vehicle weight, tire dynamic radius and resistance data, and the preset conversion formula is as follows:
T Req ＝maR+ΣT；
wherein T is Req And m is the vehicle weight, a is the acceleration data, R is the dynamic radius of the tire, and Sigma T is the resistance data.
In a second aspect, an embodiment of the present application provides a system for generating an accelerator pedal characteristic, including:
the acquisition module is used for acquiring the whole vehicle parameters and the drivability target parameters of the vehicle;
the accelerator-acceleration module is used for obtaining the vehicle speed-acceleration curve data under the set accelerator according to the first preset acceleration change condition in the drivability target parameter;
the vehicle speed-acceleration module is used for obtaining the accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and the second preset acceleration change condition in the drivability target parameter;
the required torque module is used for obtaining required torque curve data of the set vehicle speed according to the whole vehicle parameters and the accelerator opening-acceleration curve data of the set vehicle speed;
and the calibration module is used for generating calibration parameters of the characteristics of the accelerator pedal according to the data of the required torque curve of the set vehicle speed.
Further, the first preset acceleration change condition is an acceleration change relation between preset accelerator feature points, and the accelerator-acceleration module includes:
the accelerator characteristic point unit is used for acquiring the preset accelerator characteristic point according to the drivability target parameter, and the preset accelerator characteristic point comprises at least two accelerator characteristic point data;
and the accelerator-acceleration unit is used for obtaining the vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change conditions.
Further, the second preset acceleration change condition is an acceleration change relation between preset vehicle speed feature points, and the vehicle speed-acceleration module includes:
the vehicle speed characteristic point unit is used for acquiring the preset vehicle speed characteristic point according to the drivability target parameter and the set accelerator vehicle speed-acceleration curve data, wherein the preset vehicle speed characteristic point comprises at least two vehicle speed characteristic point data;
and the vehicle speed-acceleration unit is used for obtaining the accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
Further, the demand torque module includes:
the conversion unit is used for converting acceleration data in the accelerator opening-acceleration curve data under the set vehicle speed into required torque data according to the whole vehicle parameters and a preset conversion formula;
and the required torque unit is used for obtaining required torque curve data of the set vehicle speed according to the accelerator opening-acceleration curve data and the required torque data of the set vehicle speed.
In a third aspect, an electronic device provided in an embodiment of the present application includes: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspects when the computer program is executed.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium having instructions stored thereon, which when executed on a computer, cause the computer to perform the method according to any of the first aspects.
In a fifth aspect, embodiments of the present application provide a computer program product, which when run on a computer, causes the computer to perform the method according to any one of the first aspects.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the techniques disclosed herein.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a method for generating characteristics of an accelerator pedal according to an embodiment of the present application;
FIG. 2 is a flowchart of another method for generating accelerator pedal characteristics according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of vehicle speed-acceleration curve data under a set accelerator according to an embodiment of the present application;
fig. 4 is a schematic diagram of accelerator opening-acceleration curve data under a set vehicle speed according to an embodiment of the present application;
FIG. 5 is a block diagram of a system for generating accelerator pedal characteristics according to an embodiment of the present application;
fig. 6 is a block diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
The embodiment of the application provides a method, a system, electronic equipment and a computer readable storage medium for generating accelerator pedal characteristics, which can be applied to the calibration of the accelerator pedal characteristics of a vehicle; after the whole vehicle parameter and the drivability target parameter of the vehicle are obtained in the method for generating the accelerator pedal characteristic, vehicle speed-acceleration curve data under the set accelerator and accelerator opening-acceleration curve data under the set vehicle speed are sequentially obtained through the first preset acceleration change condition and the second preset acceleration change condition, further, required torque curve data of the set vehicle speed is obtained, and finally, calibration parameters of the accelerator pedal characteristic are generated, so that calibration of the accelerator pedal characteristic is realized; after the whole vehicle parameters and the drivability target parameters are obtained, the rest steps can be automatically calculated by a computer, so that the dependence on people is reduced, and the manual operation errors are reduced; the calculation efficiency of the computer is far higher than that of manual calculation, and the complicated multi-performance target setting can be accurately realized; therefore, the method can achieve the technical effect of improving the data reliability and the working efficiency.
Referring to fig. 1, fig. 1 is a flowchart of a method for generating an accelerator pedal characteristic according to an embodiment of the present application, where the method for generating an accelerator pedal characteristic includes the following steps:
s100: and acquiring the whole vehicle parameters and the drivability target parameters of the vehicle.
Illustratively, the entire vehicle of the vehicle includes one or more of vehicle weight, gear ratio, wheel radius, entire vehicle resistance curve, off-motor characteristics; the drivability target parameters include one or more of a vehicle coasting deceleration, a set throttle desired vehicle speed, and a set throttle desired acceleration.
S200: and obtaining the vehicle speed-acceleration curve data under the set accelerator according to the first preset acceleration change condition in the drivability target parameter.
The first preset acceleration change condition refers to an acceleration change rule between preset throttle feature points; for example, in a vehicle speed-acceleration coordinate system in which a vehicle speed and an acceleration are taken as coordinate axes, the acceleration point coordinates at a certain vehicle speed under a preset accelerator, which are referred to as preset accelerator feature points, are shown as curves formed by connecting preset accelerator feature points, which are acceleration change rules, and represent the relationship between the vehicle speed and the acceleration at a certain accelerator.
S300: and obtaining accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and a second preset acceleration change condition in the drivability target parameter.
The second preset acceleration change condition refers to an acceleration change rule between preset vehicle speed feature points; for example, in an accelerator-acceleration coordinate system using an accelerator and an acceleration as coordinate axes, the preset vehicle speed feature point refers to an acceleration point coordinate under some accelerator under a set vehicle speed, and an acceleration change rule, that is, a curve formed by connecting preset vehicle speed feature points, represents a relationship between the accelerator and the acceleration under a certain vehicle speed.
S400: and obtaining the required torque curve data of the set vehicle speed according to the whole vehicle parameters and the accelerator opening-acceleration curve data of the set vehicle speed.
The acceleration is converted into the required torque according to the confirmed parameters of the whole vehicle by combining the accelerator opening degree-acceleration curve data under the set vehicle speed, and the required torque curve of the set vehicle speed can be obtained after calculation.
S500: and generating calibration parameters of the characteristics of the accelerator pedal according to the required torque curve data of the set vehicle speed.
By way of example, according to the required torque curve data of the set vehicle speed, a required torque curve required during calibration of the accelerator pedal characteristic can be calculated and extracted, so as to generate calibration parameters of the accelerator pedal characteristic.
In some embodiments, after the whole vehicle parameter and the drivability target parameter of the vehicle are obtained in the method for generating the accelerator pedal characteristic, the vehicle speed-acceleration curve data under the set accelerator and the accelerator opening-acceleration curve data under the set vehicle speed are sequentially obtained through the first preset acceleration change condition and the second preset acceleration change condition, so that the required torque curve data of the set vehicle speed is obtained, and finally, the calibration parameter of the accelerator pedal characteristic is generated, and the calibration of the accelerator pedal characteristic is realized; after the whole vehicle parameters and the drivability target parameters are obtained, the rest steps can be automatically calculated by a computer, so that the dependence on people is reduced, and the manual operation errors are reduced; the calculation efficiency of the computer is far higher than that of manual calculation, and the complicated multi-performance target setting can be accurately realized; therefore, the method can achieve the technical effect of improving the data reliability and the working efficiency.
Referring to fig. 2, fig. 2 is a flowchart of another method for generating an accelerator pedal characteristic according to an embodiment of the present application.
Illustratively, the first preset acceleration change condition is an acceleration change relationship between preset throttle feature points, S200: the method comprises the steps of obtaining vehicle speed-acceleration curve data under a set accelerator according to a first preset acceleration change condition in driving performance target parameters, and comprises the following steps:
s210: acquiring preset throttle characteristic points according to the drivability target parameters, wherein the preset throttle characteristic points comprise at least two throttle characteristic point data;
s220: and obtaining vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change condition.
Referring to fig. 3, fig. 3 is a schematic diagram of vehicle speed-acceleration curve data under a set accelerator according to an embodiment of the present application.
The first preset acceleration change condition refers to an acceleration change rule between preset throttle feature points, and as shown in fig. 3, may be set as a curve 1, a curve 2, a curve 3 or other curves, which is not limited herein; the preset throttle characteristic points refer to acceleration points under certain vehicle speeds under the throttle, and are derived from confirmed driving performance target parameters; the number of the throttle setting feature points can be 2 or a plurality of throttle setting feature points.
Illustratively, the second preset acceleration change condition is an acceleration change relationship between preset vehicle speed feature points, S300: the step of obtaining accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and a second preset acceleration change condition in the drivability target parameter comprises the following steps:
s310: acquiring preset vehicle speed characteristic points according to the drivability target parameters and the set vehicle speed-acceleration curve data under the accelerator, wherein the preset vehicle speed characteristic points comprise at least two vehicle speed characteristic point data;
s320: and acquiring accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
In some embodiments, one of the feature points of S310 is derived from one point on the vehicle speed-acceleration curve in S220; for example, the 60kph point on the accelerator opening-acceleration curve of the vehicle speed of 60kph is required to be used as the feature point on the accelerator opening-acceleration curve of the vehicle speed of S220.
Referring to fig. 4, fig. 4 is a schematic diagram of accelerator opening-acceleration curve data under a set vehicle speed according to an embodiment of the present application.
The second preset acceleration change condition refers to an acceleration change rule between the set vehicle speed feature points, and may be set to be a curve 4, a curve 5, a curve 6, or the like as shown in fig. 4, which is not limited herein; the preset vehicle speed feature points refer to acceleration points under certain accelerator under the set vehicle speed, and are derived from the confirmed drivability target parameters and the vehicle speed-acceleration curve data in S220.
Illustratively, S400: the method comprises the steps of obtaining required torque curve data of a set vehicle speed according to the parameters of the whole vehicle and accelerator opening-acceleration curve data of the set vehicle speed, and comprises the following steps:
s410: converting acceleration data in accelerator opening-acceleration curve data under a set vehicle speed into required torque data according to the whole vehicle parameters and a preset conversion formula;
s420: and obtaining the required torque curve data of the set vehicle speed according to the accelerator opening-acceleration curve data and the required torque data of the set vehicle speed.
Illustratively, the vehicle parameters include vehicle weight, tire dynamic radius and resistance data, and the preset conversion formula is as follows:
T Req ＝maR+∑T；
wherein T is Req The required torque data is represented by m, a, R, and Σt, and the required torque data is represented by vehicle weight, acceleration data is represented by a, tire dynamic radius is represented by R, and resistance data is represented by Σt.
In some implementation scenarios, with reference to fig. 1 to fig. 4, a specific application flow of the method for generating the accelerator pedal characteristic provided in the embodiment of the present application is as follows:
1) Confirming the whole vehicle parameter values such as vehicle weight, transmission ratio, wheel radius, whole vehicle resistance curve, motor external characteristics and the like;
2) Confirming driving performance design targets such as whole vehicle sliding deceleration, accelerator expected speed setting, accelerator expected acceleration setting and the like;
3) The automatic program calculates and obtains an acceleration curve of the set accelerator according to the confirmed driving performance target and the set rule;
the set rule refers to an acceleration change rule between the set throttle feature points, and as shown in fig. 3, the set rule can be set as a curve 1, a curve 2, a curve 3 or the like;
setting accelerator characteristic points refers to setting acceleration points under certain vehicle speeds under the accelerator, and the acceleration points are derived from confirmed drivability targets; the number of the throttle characteristic points can be 2 or a plurality of throttle characteristic points;
4) The automatic program calculates and obtains an acceleration curve of the set vehicle speed according to the confirmed driving performance target and the set rule;
the set rule refers to an acceleration change rule between the set vehicle speed feature points, and as shown in the figure, the set rule can be set as a curve 4, a curve 5 or a curve 6;
the set vehicle speed characteristic points refer to acceleration points under certain accelerator under the set vehicle speed, and are derived from confirmed drivability targets;
5) The automatic program calculates and obtains a required torque curve of the set vehicle speed according to a preset conversion formula according to the confirmed whole vehicle parameter value;
6) And (3) extracting a required torque curve required by the characteristic calibration parameters of the accelerator pedal from the required torque curve calculated in the step (5) by an automatic program.
Referring to fig. 5, fig. 5 is a block diagram of a system for generating an accelerator pedal characteristic according to an embodiment of the present application, where the system includes:
an acquisition module 100, configured to acquire a vehicle parameter and a drivability target parameter of a vehicle;
the accelerator-acceleration module 200 is configured to obtain vehicle speed-acceleration curve data under the set accelerator according to a first preset acceleration change condition in the drivability target parameter;
the vehicle speed-acceleration module 300 is configured to obtain vehicle speed-acceleration curve data under a set vehicle speed according to the vehicle speed-acceleration curve data under the set vehicle speed and a second preset acceleration change condition in the drivability target parameter;
the required torque module 400 is configured to obtain required torque curve data of a set vehicle speed according to the parameters of the whole vehicle and accelerator opening-acceleration curve data of the set vehicle speed;
the calibration module 500 is configured to generate calibration parameters of the accelerator pedal characteristic according to the required torque curve data of the set vehicle speed.
Illustratively, the first preset acceleration change condition is an acceleration change relationship between preset throttle feature points, and the throttle-acceleration module 200 includes:
the accelerator characteristic point unit is used for acquiring preset accelerator characteristic points according to the drivability target parameters, wherein the preset accelerator characteristic points comprise at least two accelerator characteristic point data;
and the accelerator-acceleration unit is used for obtaining the vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change conditions.
Illustratively, the second predetermined acceleration change condition is an acceleration change relationship between predetermined vehicle speed feature points, and the vehicle speed-acceleration module 300 includes:
the vehicle speed characteristic point unit is used for acquiring preset vehicle speed characteristic points according to the drivability target parameters and the set vehicle speed-acceleration curve data under the accelerator, wherein the preset vehicle speed characteristic points comprise at least two vehicle speed characteristic point data;
and the vehicle speed-acceleration unit is used for obtaining accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
Illustratively, the demand torque module 400 includes:
the conversion unit is used for converting acceleration data in accelerator opening-acceleration curve data under the set vehicle speed into required torque data according to the whole vehicle parameters and a preset conversion formula;
and the required torque unit is used for obtaining required torque curve data of the set vehicle speed according to the accelerator opening-acceleration curve data and the required torque data of the set vehicle speed.
It should be noted that the system for generating the accelerator pedal characteristic shown in fig. 5 corresponds to the method embodiments shown in fig. 1 to 4, and is not repeated here.
The application further provides an electronic device, please refer to fig. 6, and fig. 6 is a block diagram of an electronic device according to an embodiment of the application. The electronic device may include a processor 510, a communication interface 520, a memory 530, and at least one communication bus 540. Wherein the communication bus 540 is used to enable direct connection communication for these components. The communication interface 520 of the electronic device in the embodiment of the present application is used for performing signaling or data communication with other node devices. Processor 510 may be an integrated circuit chip with signal processing capabilities.
The processor 510 may be a general-purpose processor, including a central processing unit (CPU, central Processing Unit), a network processor (NP, network Processor), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 510 may be any conventional processor or the like.
The Memory 530 may be, but is not limited to, random access Memory (RAM, random Access Memory), read Only Memory (ROM), programmable Read Only Memory (PROM, programmable Read-Only Memory), erasable Read Only Memory (EPROM, erasable Programmable Read-Only Memory), electrically erasable Read Only Memory (EEPROM, electric Erasable Programmable Read-Only Memory), and the like. The memory 530 has stored therein computer readable instructions which, when executed by the processor 510, may cause an electronic device to perform the various steps described above in relation to the method embodiments of fig. 1-4.
Optionally, the electronic device may further include a storage controller, an input-output unit.
The memory 530, the memory controller, the processor 510, the peripheral interface, and the input/output unit are electrically connected directly or indirectly to each other, so as to realize data transmission or interaction. For example, the elements may be electrically coupled to each other via one or more communication buses 540. The processor 510 is configured to execute executable modules stored in the memory 530, such as software functional modules or computer programs included in the electronic device.
The input-output unit is used for providing the user with the creation task and creating the starting selectable period or the preset execution time for the task so as to realize the interaction between the user and the server. The input/output unit may be, but is not limited to, a mouse, a keyboard, and the like.
It will be appreciated that the configuration shown in fig. 6 is merely illustrative, and that the electronic device may also include more or fewer components than shown in fig. 6, or have a different configuration than shown in fig. 6. The components shown in fig. 6 may be implemented in hardware, software, or a combination thereof.
The embodiment of the application further provides a storage medium, where instructions are stored, and when the instructions run on a computer, the computer program is executed by a processor to implement the method described in the method embodiment, so that repetition is avoided, and no further description is given here.
The present application also provides a computer program product which, when run on a computer, causes the computer to perform the method of the method embodiments.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners as well. The apparatus embodiments described above are merely illustrative, for example, flow diagrams and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. A method of generating accelerator pedal characteristics, comprising:
acquiring the whole vehicle parameters and drivability target parameters of a vehicle;
obtaining vehicle speed-acceleration curve data under a set accelerator according to a first preset acceleration change condition in the drivability target parameter;
acquiring accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and a second preset acceleration change condition in the drivability target parameter;
acquiring required torque curve data of a set vehicle speed according to the whole vehicle parameters and accelerator opening-acceleration curve data of the set vehicle speed;
generating calibration parameters of the characteristics of the accelerator pedal according to the required torque curve data of the set vehicle speed;
the first preset acceleration change condition is an acceleration change relation between preset accelerator feature points, and the step of obtaining the vehicle speed-acceleration curve data under the set accelerator according to the first preset acceleration change condition in the drivability target parameter comprises the following steps:
acquiring the preset accelerator characteristic points according to the drivability target parameters, wherein the preset accelerator characteristic points comprise at least two accelerator characteristic point data;
acquiring vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change conditions;
the step of obtaining accelerator opening-acceleration curve data under the set accelerator according to the second preset acceleration change condition in the set accelerator vehicle speed-acceleration curve data and the drivability target parameter comprises the following steps:
acquiring the preset vehicle speed characteristic points according to the drivability target parameters and the vehicle speed-acceleration curve data under the set accelerator, wherein the preset vehicle speed characteristic points comprise at least two vehicle speed characteristic point data;
and acquiring accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
2. The method for generating accelerator pedal characteristics according to claim 1, wherein the step of obtaining the required torque curve data of the set vehicle speed from the vehicle parameters and the accelerator opening-acceleration curve data of the set vehicle speed comprises:
converting acceleration data in accelerator opening-acceleration curve data under the set vehicle speed into required torque data according to the whole vehicle parameters and a preset conversion formula;
and obtaining the required torque curve data of the set vehicle speed according to the accelerator opening-acceleration curve data and the required torque data of the set vehicle speed.
3. The method for generating accelerator pedal characteristics according to claim 2, wherein the vehicle parameters include vehicle weight, tire dynamic radius and resistance data, and the preset conversion formula is as follows:
；
wherein,for the demand torque data, < >>For the weight of the vehicle,/->For acceleration data, ++>For said tyre dynamic radius +.>Is the resistance data.
4. A system for generating accelerator pedal characteristics, comprising:
the acquisition module is used for acquiring the whole vehicle parameters and the drivability target parameters of the vehicle;
the accelerator-acceleration module is used for obtaining the vehicle speed-acceleration curve data under the set accelerator according to the first preset acceleration change condition in the drivability target parameter;
the vehicle speed-acceleration module is used for obtaining the accelerator opening-acceleration curve data under the set accelerator according to the set accelerator vehicle speed-acceleration curve data and the second preset acceleration change condition in the drivability target parameter;
the required torque module is used for obtaining required torque curve data of the set vehicle speed according to the whole vehicle parameters and the accelerator opening-acceleration curve data of the set vehicle speed;
the calibration module is used for generating calibration parameters of the characteristics of the accelerator pedal according to the required torque curve data of the set vehicle speed;
the first preset acceleration change condition is an acceleration change relation between preset accelerator characteristic points, and the accelerator-acceleration module comprises:
the accelerator characteristic point unit is used for acquiring the preset accelerator characteristic point according to the drivability target parameter, and the preset accelerator characteristic point comprises at least two accelerator characteristic point data;
the accelerator-acceleration unit is used for obtaining the vehicle speed-acceleration curve data under the set accelerator according to the preset accelerator characteristic points and the first preset acceleration change conditions;
the second preset acceleration change condition is an acceleration change relation between preset vehicle speed feature points, and the vehicle speed-acceleration module comprises:
the vehicle speed characteristic point unit is used for acquiring the preset vehicle speed characteristic point according to the drivability target parameter and the set accelerator vehicle speed-acceleration curve data, wherein the preset vehicle speed characteristic point comprises at least two vehicle speed characteristic point data;
and the vehicle speed-acceleration unit is used for obtaining the accelerator opening-acceleration curve data under the set vehicle speed according to the preset vehicle speed characteristic points and the second preset acceleration change conditions.
5. An electronic device, comprising: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method for generating an accelerator pedal characteristic according to any one of claims 1 to 3 when the computer program is executed.
6. A computer-readable storage medium having instructions stored thereon, which when run on a computer, cause the computer to perform the method of generating the accelerator pedal characteristic according to any one of claims 1 to 3.
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| CN202210242654.XA CN114537418B (en) | 2022-03-11 | 2022-03-11 | Method and system for generating accelerator pedal characteristics |
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| CN202210242654.XA CN114537418B (en) | 2022-03-11 | 2022-03-11 | Method and system for generating accelerator pedal characteristics |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828090A (en) * | 2014-12-09 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle control method, device and vehicle |
| DE102014009856A1 (en) * | 2014-07-03 | 2016-01-07 | Man Truck & Bus Ag | Method and device for adapting the accelerator pedal characteristic in a motor vehicle |
| CN107499313A (en) * | 2016-12-21 | 2017-12-22 | 宝沃汽车（中国）有限公司 | Demarcate the method and torque calibrating device of vehicle demand torque |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014009856A1 (en) * | 2014-07-03 | 2016-01-07 | Man Truck & Bus Ag | Method and device for adapting the accelerator pedal characteristic in a motor vehicle |
| CN104828090A (en) * | 2014-12-09 | 2015-08-12 | 北汽福田汽车股份有限公司 | Vehicle control method, device and vehicle |
| CN107499313A (en) * | 2016-12-21 | 2017-12-22 | 宝沃汽车（中国）有限公司 | Demarcate the method and torque calibrating device of vehicle demand torque |
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Address after: No. 36 Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION NEW ENERGY AUTOMOBILE Co.,Ltd. Country or region after: China Address before: No. 36 Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GAC AION New Energy Vehicle Co.,Ltd. Country or region before: China |