Calculation method and system for accelerator pedal opening of electric vehicle performance test
An accelerator pedal and electric vehicle technology, which is applied in vehicle testing, machine/structural component testing, instruments, etc., and can solve problems such as inaccurate control of the accelerator pedal opening
Active Publication Date: 2020-05-19
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0003] The invention provides a calculation method and system for the opening of the accelerator pedal in the performance test of an electric vehicle, which solves the problem of inaccurate control of the opening of the accelerator pedal when performing a bench performance test of an existing electric vehicle, and can improve the results of the performance test accuracy, reducing the cost of vehicle testing
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[0039] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.
[0040] Aiming at the problem of inaccurate control of the accelerator pedal opening of the current electric vehicle performance test, the present invention provides a calculation method and system for the accelerator pedal opening of the electric vehicle performance test. Acceleration calculates the traction force and motor driving force of the vehicle, and then obtains the accelerator pedal opening according to the motor MAP map function. The invention solves the problem of inaccurate control of the opening of the gas pedal when performing bench performance tests on existing electric vehicles, improves the accuracy of performance test results, and reduces the cost of vehicle tests.
[0041] Such as figure 1 As...
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The invention provides a calculation method and system for the opening degree of an accelerator in a performance test of an electric vehicle. The method comprises the steps of obtaining a driving working condition curve, and determining set vehicle speed and set acceleration for the vehicle to run according to the working condition curve; calculating traction force Ft and motor driving force Fm required for the vehicle to run according to the mass and the set acceleration of the vehicle; obtaining a motor MAP function, and calculating the opening degree theta of an accelerator pedal accordingto the motor driving force Fm and the motor MAP function; calculating an accelerator pedal voltage signal corresponding to the opening degree of the accelerator according to the set range of the opening degree of the accelerator and the corresponding voltage range. By means of the calculation method and system, the problem that when the existing electric vehicle is subjected to the rack performance test, the situation that the control over the opening degree of the accelerator is not accurate easily occurs can be solved, the accuracy of the result of the performance test is improved, and the cost for the test of the vehicle is reduced.
Description
technical field [0001] The invention relates to the technical field of electric vehicle detection, in particular to a calculation method and system for an accelerator pedal opening of an electric vehicle performance test. Background technique [0002] During the research and development of electric vehicles, it is necessary to test and verify the performance of the entire vehicle, which requires the establishment of a physical model that matches the performance of the relevant vehicle, and performance tests on the bench. In the vehicle performance test, it is necessary to conduct tests such as constant speed and driving range under working conditions, and these tests require the whole vehicle to run at a specific working curve, that is, the vehicle model is required to drive at a specific speed, and the vehicle model needs to be adjusted as needed. The vehicle speed will be the same as the set vehicle speed in the operating curve. At present, electric vehicle driving robots...
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IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 姚强高美芹葛胜迅王亮屈龙洋陈彬惠周朋袁俊善
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD