Journal of South China University of Technology(Natural Science) >
Fault- Tolerant Control of 4WID/4WIS Electric Vehicles Based on Reconfigurable Control Allocation
Received date: 2013-04-07
Revised date: 2013-07-12
Online published: 2013-10-11
Supported by
国家自然科学基金资助项目(51105165);吉林大学汽车仿真与控制国家重点实验室开放基金资助项目(20121123)
Proposed in this paper is a fault- tolerant control (FTC) algorithm for the 4WID/4WIS electric vehiclesafter faults,which takes the maximum post- fault vehicle stability as the control objective.The fault- tolerant control-ler adopts a hierarchical structure consisting of an upper motion controller based on the model predictive control(MPC) theory and a lower reconfigurable control allocator based on the reconfigurable control allocation method.Moreover,a re- allocation law considering multiple fault conditions of the driving motor is designed off line so as tomaintain the desired vehicle dynamics after faults.Simulated results show that the proposed FTC algorithm guaran-tees the desired dynamics and trajectory even under multiple fault conditions of the driving motor,so that it im-proves the post- fault stability and safety as well as the handling of vehicles.
Liu Jie Liu Chao Zong Chang- fu Zheng Hong- yu Liu Ming- hui . Fault- Tolerant Control of 4WID/4WIS Electric Vehicles Based on Reconfigurable Control Allocation[J]. Journal of South China University of Technology(Natural Science), 2013 , 41(11) : 125 -131 . DOI: 10.3969/j.issn.1000-565X.2013.11.021
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