abnormality diagnostic method of torque detecting device, an electric power steering device and idling stop specification vehicle

摘要

abnormality diagnostic method of torque detection apparatus for obtaining a reliable torque detecting device , and I to provide an electric power steering device using the torque detector. Immediately after the power is turned on, before the steering assist control is started, and that each monitoring unit for monitoring an abnormality of the signal processing circuit (40) constituting a torque detecting device (30) (monitoring block) to work properly to perform the initial diagnosis to confirm. Upon initial diagnosis, type alternating with normal signal and abnormal signal to the monitoring block, successfully diagnostic monitoring block at the time of normal signal input, monitoring block at the time of abnormal signal input is to have that diagnosis, monitoring block successfully it is determined to be operating. Then, in terms of all the monitoring block has to determine if it is working properly, and starts the steering assist control based on the steering torque detected by the torque detector (30).