The Design of Comprehensive Performance Test-Bed of Automobile Electric Power Steering System

A kind of comprehensive performance test-bed of automobile electric power steering system was designed. IPC was applied to the main control system. Testing software was developed based on Visual Basic. AC servo system was assembled to respectively simulate input torque and load torque, the manual input torque can also be realized by operating steering wheel. The motion control card MPC08 is used to control the motion of Servo motor. Test data is collected by using multi-function data collection card. The lifting gears were assembled to install input/output shaft servo motor and EPS. Test results show that the test-bed can verify the control strategies and accurately detect the assist characteristic of EPS.