The invention provides a failure detection device and an electric power steering device. The failure detection device is provided with a failure diagnosis unit that detects a failure of a torque detection device (200) that detects torque applied to a pinion shaft by means of a plurality of torque sensors; and a target current calculation unit (20) that, when the failure diagnosis unit detects the failure in the torque detection device (200), controls the driving of an electric motor (110) so as to output a continuous torque that is continuously generated and that can be detected by the torque sensor (203) when at least one of the plurality of torque sensors (203) is normal.
本发明提供故障检测装置和电动助力转向装置。故障检测装置具备:故障诊断部,其检测扭矩检测装置(200)的故障,该扭矩检测装置(200)通过多个扭矩传感器来检测施加在小齿轮轴上的扭矩;和目标电流计算部(20),在故障诊断部检测出扭矩检测装置(200)的故障的情况下,该目标电流计算部(20)控制电动马达(110)的驱动,使得输出连续扭矩,该连续扭矩是在多个扭矩传感器(203)中的至少一个正常的情况下能由扭矩传感器(203)检测的、连续产生的扭矩。
FAILURE DETECTION DEVICE, ELECTRIC POWER STEERING DEVICE
故障检测装置和电动助力转向装置
2021-12-21
Patent
Electronic Resource
Chinese
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