Patent ID: 9372216
Filing Date: 2016-06-21
CPC Classification: B60L,G01R,Y02T

Claim Text:
1. An electric power supply controller for a vehicle, which charges from a charging device to a battery on a vehicle, the controller comprising: a single signal line disposed in a connection device which electrically connects the charging device and the battery, and an impedance on the single signal line being changed corresponding to a connection state and a non-connection state of the connection device; a first connection check section which determines the connection state or the non-connection state by monitoring the impedance on the single signal line while supplying a predetermined first monitor signal to the single signal line; a second connection check section which determines the connection state or the non-connection state by monitoring the impedance on the single signal line while supplying a second monitor signal with less electric power than the first monitor signal to the single signal line; and a choosing section which chooses one of the first connection check section and the second connection check section; wherein the second monitor signal has a voltage lower than a voltage of the first monitor signal; the first monitor signal has a voltage which is larger than a predetermined restart voltage by which a controller on the electric powered vehicle is restarted, and the second monitor signal has a voltage which is smaller than the restart voltage.