A road condition simulation loading test device and test method for electric vehicle drive motor

Abstract

The invention discloses a road condition simulation loading test device and test method for an electric vehicle driving motor, which is composed of a strain type torque speed sensor, a reducer, a transmission device, a tire, a power motor, a lifting device, and a detection control cabinet; the transmission device, Tires and power motors make up the loading platform to simulate various road conditions; the motor lifting platform adjusts the height of the motor; the computer adjusts the road condition simulation loading platform to realize the realistic simulation of the road surface of the tested motor under different weather, different roughness and different driving modes; through the conveyor belt simulation On the road, replace the conveyor belt to simulate the roughness of the road surface, adjust the contact angle between the tire and the conveyor belt to simulate the road slope, and change the force applied by the power motor to simulate different weather conditions. The user inputs the road conditions, collects the motor power and speed data, processes the data and forms a graphical report, which intuitively reflects the performance parameters of the motor under different road conditions and the simulated loading effect.

Description

technical field [0001] The invention relates to the technical field of motor testing, in particular to an electric vehicle drive motor road condition simulation test device and test method. Background technique [0002] At present, the test device for electric vehicle drive motor is generally composed of loading table, drive motor, motor controller, strain gauge torque tester, power analyzer, data acquisition module, power distribution cabinet, and battery pack. The loading table provides load for the driving motor, and the data acquisition module collects the speed, current and torque information of the driving motor to realize the performance test of the driving motor. The function of this device is relatively simple, and it can only complete the performance test of the driving motor under a specific load, and cannot perform the performance test of the driving motor under different complex road conditions. [0003] Due to the complex and changeable road conditions of vehi...

AI Technical Summary

Problems solved by technology

The road simulation system is mainly composed of a hydraulic vibration table, a control cabinet and an acquisition and processing system. The vibration table makes the wheels fixed on it move up and down according to the road spectrum provided by the control cabinet; The wheel accelerates and measures the torque and speed information of the motor through the acceleration sensor (attached to the axle of the wheel); the test results of this test method are affected by the vibration of the car, and the measurement data is inaccurate. At the same time, the data is tested by starting the car, and the test model is single , each time the test car is idling, complex road conditions cannot be simulated

Images