Research and test of power characteristics of automotive electric power steering system

EPS;  Assist features;  simulation;  Vehicle testing

In order to study the influence of power assist characteristics on the steering performance of automobiles, the dynamic model of electric power steering system with corner input was established, and the power assist characteristic curve of EPS was selected. Through simulation, the correctness of the established model is verified. Finally, the self-developed electric power steering controller is used to carry out the real vehicle test, and the test results show that the designed controller can meet the steering performance index well.