Fault-Tolerant Controller and Failure Analysis of Automotive Electromagnetic Suspension Systems

摘要

This paper focuses on the failure analysis and the fault tolerant control of an automotive electromagnetic suspension system. The failure analysis classification for a Single-Point Failure (SPF) is presented. Then, a model-based technique for Fault Detection and Identification (FDI) which can be implemented in the suspension is discussed. The model-based FDI consists of suspension fault-modeling, residual generation, and the fault identification. In addition, the step by step suspension system fault-modeling is illustrated. By means of the failure analysis and FDI, a brief overview of fault tolerant strategies in actuators, sensors, and suspension control is presented.