Abstract:The safety reliability of steer-by-wire systems (SBW) is the main reason restricting their application; thus, their safety reliability are important. Some studies have proposed safe and reliable dual-redundancy steer-by-wire systems. This paper presents a current-balance dual-redundancy control method for such systems which balances the torques of the dual motors. The system can also cut the power to a faulty motor by reorganizing the control system which reduces the system order so that steering control is maintained after one motor failure. Vehicle tests show that this method provides steering control with balanced motors. The tests also show that the system modifies the control mode after a motor failure to maintain vehicle steering.
米峻男, 王通, 蔡智凯, 连小珉. 双余度线控转向机系统的电流均衡余度控制[J]. 清华大学学报(自然科学版), 2021, 61(9): 898-905.
MI Junnan, WANG Tong, CAI Zhikai, LIAN Xiaomin. Current-balance dual-redundancy control of dual-redundant steering gears in a steer-by-wire system. Journal of Tsinghua University(Science and Technology), 2021, 61(9): 898-905.
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