Steering system

The invention relates to a steering system. The invention provides a steer-by-wire type steering system with high practicability. A steering system is provided with a steering device (14) that has a dual-system steering motor (50) provided with a main system (50a) and a subsystem (50b), steers a wheel by means of a force generated by the steering motor, and operates the subsystem in conjunction with the main system during normal power supply in which power is supplied from a main power source (70) to the main system and the subsystem. When the backup power supply (72) supplies power to the main system, the main system is operated while the power supply to the main system is limited, or the subsystems are independently controlled without operating the main system. And during standby application, the force for steering the wheels can be ensured, and the power supply from the standby power supply can last for a relatively long time. 本发明涉及转向系统。本发明提供一种实用性高的线控转向型的转向系统。一种转向系统，具备转舵装置(14)，该转舵装置(14)具有被设为主系统(50a)、子系统(50