A Control Strategy to Reduce Torque Oscillation of the Electric Power Steering System 2019-01-1516
This paper proposes a new method of analyzing stability and design of a controller for an electric power steering (EPS) system. The main purpose of an EPS control design is to ensure that the driver will have a comfortable drivering experience, which is mostly depend on the assist torque map. However, the high level of assist gain will lead to vibration or even divergence of the steering system. Therefore, an EPS system needs to have an extra stability compensator to stabilize the system and attenuate the unpleasant vibration. In this paper, an accurate theoretical model is built and the criteria for evaluation of system quality are suggested. The bench tests and vehicle experiments are performed to verify the theoretical analysis.
Duo Fu, Subhash Rakheja, Wen-Jun Yan
Concordia University Montreal, South China University of Technology
Noise and Vibration Conference & Exhibition