关键词: 控制器局域网络；转向力测试方法；力矩方向盘；报文

Abstract: In the steering system performance test, the torque steering wheel is usually used to test the steering torque, but the test preparation time of this scheme is long, and the installation and disassembly of the equipment are complex, so there is a simple method to measure the steering force by using the message sent by the electric power steering column node on controller area network bus is proposed. In this paper, the steering wheel angle and steering force are measured based on the angle sensor and torque sensor of the electric power steering column, the data is collected through the controller area network message on the controller area network-bus to get the relationship between the steering wheel angle and steering force, and the data show that the steering torque is small and meets the requirements of steering performance. By comparing the results of the steering force measuring instrument and the controller area network message test shows that the measurement error of the two measurement values is small and the trend is the same, which indicates that the method of testing the steering force through controller area network message is feasible,reliable and accurate. The test method through controller area network message can reduce the test cost and shorten the vehicle development cycle.

Key words: Controller area network; Steering force test method; Torque steering wheel; Message