CONNECTION DETECTING CIRCUIT

摘要

A circuit includes a vehicle-side circuit, a charger-side circuit and a connecting part. The vehicle-side circuit includes a power source, a first resistor provided between the power source and the connecting part, a second resistor which is connected to the first resistor in series, a switch which turns on or off current supply from the power source, a voltage detector which detects a voltage at a connection point of the first resistor and the second resistor, a determining part which determines a state of connection between a vehicle-side connector and a charger-side connector and occurrence4 of a failure in the vehicle-side circuit based at least in part on the voltage detected by the voltage detector and an on/off state of the switch.

主权项

1. A circuit, comprising:
a vehicle-side connector, provided in an electrically driven vehicle, and configured to be connected to a charger-side connector which is provided in an external charger for supplying power to a battery installed in the electrically driven vehicle; and a vehicle-side circuit, provided at the electrically driven vehicle, and configured to be connected via a connecting part to the charger-side connector being grounded in a state that the vehicle-side connector and the charger-side connector are connected to each other, wherein the vehicle-side circuit includes:
a power source;a first resistor provided between the power source and the connecting part;a second resistor which is connected to the first resistor in series;a switch which turns on or off current supply from the power source;a voltage detector which detects a voltage at a connection point of the first resistor and the second resistor; anda determining part which determines a state of connection between the vehicle-side connector and the charger-side connector and occurrence of a failure in the vehicle-side circuit based at least in part on the voltage detected by the voltage detector and an on/off state of the switch