Steering control device, vehicle power source system, and vehicle

A power source system comprising:

• a main power source mounted on a vehicle;
• an auxiliary power source configured to back up the main power source;
• a steering control device including a controller configured to control driving of a motor that generates a torque, the torque being a torque applied to a steering mechanism of the vehicle using electric power from at least any one of the in-vehicle main power source and the auxiliary power source that backs up the main power source,
• wherein the controller is configured to wait for the auxiliary power source to be charged to an extent that the main power source is able to be backed up and to permit the vehicle to travel when the controller is activated with an activation operation for the vehicle as a trigger and transitions to a state where control of the motor is executable.

A vehicle comprising:

• an operation apparatus operated when the vehicle travels;
• a vehicle control device configured to control the vehicle based on the operation of the operation apparatus;
• and
• a power source system, wherein:
• the power source system includes a main power source mounted on the vehicle, an auxiliary power source configured to back up the main power source, and a steering control device including a controller configured to control driving of a motor that generates a torque;
• the torque is a torque applied to a steering mechanism of the vehicle using electric power from at least any one of the in-vehicle main power source and the auxiliary power source that backs up the main power source;
• the controller is configured to wait for the auxiliary power source to be charged to an extent that the main power source is able to be backed up and to permit the vehicle to travel when the controller is activated with an activation operation for the vehicle as a trigger and transitions to a state where control of the motor is executable;
• and
• the vehicle control device is configured to lock or disable the operation of the operation apparatus when the steering control device does not permit the vehicle to travel.