Patent attributes
An engine start controller shortens the time required from when an operation switch is operated to when an engine is started. The engine start controller controls starting of the engine of a vehicle and power supply to an electric device system. A control unit selectively locks the steering shaft of the vehicle and performs authentication with a portable device, which is carried by a user of the vehicle, for permitting use of the vehicle. An operation switch is connected to the control unit and generates an operation signal when operated by the user. The control unit unlocks the steering shaft in parallel with supplying power to the electric device system when the operation signal is generated and use of the vehicle is permitted through the authentication.