Engine starting device

A method, comprising:

• rotating a movable contact relative to a stationary contact,
• switching a connection/disconnection of the movable contact with respective contacts of the stationary contact by the rotation of the movable contact to an off-position, an on-position and a starter position relative to the stationary contact;
• and
• exciting a relay by a start of an engine control unit (ECU), where the relay is provided on a sub power source line that is connected in parallel to a main power source line, the relay connects a power source of a vehicle and a sub power source input section of the ECU and the relay provides electric continuity between the power source and the ECU.

An engine starting device, comprising:

• ignition switch means for causing turning-on and off of a main power source line connecting a power source for a vehicle and an engine control unit (ECU), the ignition switch means comprising
• stationary contact means and movable contact means that is rotatable relative to the stationary contact means, wherein the stationary contact means comprises main contact means for connecting to a power source input section of the ECU and starter contact means for connecting to a starter, the movable contact means is configured switch its connection/disconnection with the respective contacts of the stationary contact means by the rotation of the movable contact means to an off-position, an on-position and a starter position relative to the stationary contact means, and both the main contact means and the starter contact means are configured to be connected to the power source of the vehicle when the movable contact means is rotated to the starter contact means;
• and
• relay means provided on a sub power source line that is connected in parallel to the main power source line, the relay means connecting the power source of the vehicle and a sub power source input section of the ECU, the relay means being excited by the start of the ECU and providing electric continuity between the power source and the ECU.