Wheel speed simulation system and method

Abstract

The invention provides a wheel speed simulation system and method. The wheel speed simulation system comprises a simulation device, a wheel speed simulation module and an electronic stability controlmodule, wherein the simulation device is used for outputting a square wave voltage signal to the wheel speed simulation module according to a received brake signal; the wheel speed simulation module is used for converting the square wave voltage signal output by the simulation device into a corresponding square wave current signal in real time and sending the square wave current signal to the electronic stability control module in real time; and the electronic stability control module is used for receiving the square wave current signal sent by the wheel speed simulation module and outputtingthe corresponding brake signal to the simulation device according to the square wave current signal. Signal simulation is carried out through the simulation device to output the square wave voltage signal, and the square wave voltage signal is converted into the square wave current signal through the wheel speed simulation module, so that a wheel speed sensor does not need to be arranged, and thestructure of the wheel speed simulation system is simplified.

Description

technical field [0001] The invention relates to the field of vehicle testing, in particular to a wheel speed simulation system and a wheel speed simulation method. Background technique [0002] In the hardware-in-the-loop test for the chassis electronic control system, in order to make the chassis electronic control system work normally, it is necessary to input the same wheel speed signal as in the driving environment of the real vehicle, so that the working environment of the electronic control system is as close as possible to the actual driving environment. car driving status. At present, most of the existing wheel speed simulation mechanisms use the ring gear motor driver to drive the ring gear motor, and use the change of the magnetic field of the electromagnetic coil to stimulate the simulation of the wheel speed. In the hardware-in-the-loop test process, it is necessary to use the wheel speed The sensor measures the analog quantity of the tire wheel speed, so that t...

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Problems solved by technology

[0003] The main purpose of the present invention is to propose a wheel speed simulation system and a wheel speed simulation me

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