Automatic driving control method and system for performance testing of electric vehicle

Abstract

The invention provides an automatic driving control method and system for performance testing of an electric vehicle. The method comprises: setting a correspondence table of accelerator opening degrees and voltages, a correspondence table of brake pedal positions and voltages, and a correspondence table of gears and logic signals; acquiring a driving working condition curve and determining a vehicle speed, an acceleration speed, an accelerator opening degree, and a braking opening degree of vehicle driving based on the working condition cure so as to form an automatic driving logic table; sending an accelerator opening degree signal, a braking pedal position signal, and a gear signal to a vehicle control simulation module by an upper computer based on the automatic driving logic table; andon the basis of the accelerator opening degree signal, the braking pedal position signal, the gear signal, and the braking pedal position signals, carrying out simulation by the a vehicle control simulation module to obtain a vehicle accelerator opening voltage signal, a braking pedal position voltage signal and a gear logic signal, thereby controlling vehicle running. Therefore, the e accuracy and intelligence of the vehicle performance test are improved.

Description

Technical field [0001] The invention relates to the technical field of electric vehicle detection, in particular to an automatic driving control method and system for electric vehicle performance test. Background technique [0002] In the process of electric vehicle research and development, it is necessary to test and verify the performance of the entire vehicle, which requires the establishment of a physical model matching the performance of the relevant vehicle, and performance testing on the bench. In the vehicle performance test, tests such as constant speed and driving range under working conditions are required, and these tests require the vehicle to run at a specific working condition curve, that is, the vehicle model is required to run at a specific vehicle speed and adjusted as needed The vehicle speed is the same as the set vehicle speed in the operating curve; however, in the current vehicle performance verification of electric vehicles, the vehicle speed input is rea...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an automatic driving control method and system for electric vehicle performance test, which solves the problem that the driver needs to control the operation of the vehicle according to the set working conditions in the performance test of the existing electric vehicle. The control precision is high, and it is easy to cause the driver's mental fatigue and physical exertion, and the control precision is not high. It can improve the accuracy and intelligence of the vehicle performance test and improve the efficiency of the electric vehicle test.

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