Patent ID: 9623900
Date: 2017-04-18
CPC Classifications: B62D

Claim:
1. A vehicle steering device comprising: a steer-by-wire steering mechanism that steers a steered wheel of a vehicle by driving of a steered motor according to a signal generated from a steering motor according to operation of an operation unit; a motor angle sensor that detects a rotation angle of the steering motor as a periodic electrical angle; a steered angle sensor that detects a steered angle of the steered wheel that is steered by the driving of the steering motor; a storage unit in which correspondence between the electrical angle and the steered angle that are detected is stored in advance; and a failure determination unit that determines whether there is a failure or not of the steer-by-wire mechanism by comparing a relation between the detected electrical angle and the detected steered angle with the correspondence between the electrical angle and the steered angle that is stored in the storage unit.