A comprehensive test bed for electric wheels based on virtual instruments and dynamic and static vertical loading devices

Abstract

An electric wheel comprehensive test bench based on virtual instruments and dynamic and static vertical loading devices includes a bench main control module and a test bench; the bench main control module includes: a host computer, a PXI real-time control system, and a PXI real-time control system. A CAN communication card model NI PXI-8512 and a data acquisition card model NI PXI-6221; the test bench includes a base, a dynamic and static vertical load loading device, an electric wheel, an electric wheel controller, Drum, speed and torque sensor, dynamometer, dynamometer controller, coupling; this test bench can accurately simulate the various loads experienced by electric wheeled electric vehicles during road driving, especially electric wheels. The vertical load experienced can provide a test environment close to the actual vehicle for developing electric wheels and testing their performance.

Description

technical field [0001] The invention relates to electric vehicle bench test technology, in particular to an electric wheel comprehensive test bench based on virtual instruments and dynamic and static vertical loading devices. Background technique [0002] The bench test is mostly used in the field of automobile and assembly development. In the early stage of automobile development, through the automobile bench test, it can simulate the starting, acceleration, climbing, braking and other working conditions of the car. If the accuracy can be close to the real car road test, It can improve the safety of vehicle and component experiments, reduce the dependence on the experimental site, reduce the cost of control system development, and effectively shorten the development cycle. [0003] As a new type of electric vehicle, the electric wheel electric vehicle improves the transmission efficiency of the whole vehicle and simplifies the chassis structure because of the cancellation o...

AI Technical Summary

Problems solved by technology

[0004] However, while the electric wheel electric vehicle brings the above advantages, it also brings the following problems: the unsprung mass of the vehicle changes greatly after the electric wheel is adopted, so the change of the vertical load of the wheel has a great impact on the performance of the electric wheel electric vehicle Whether it can accurately simulate the change of the vertical load of the wheel during the driving process of the real vehicle has become the key to the development of the electric wheel test bench

Images