Connection detecting circuit
First Claim
1. A circuit, comprising:
- a vehicle-side connecting part provided in an electrically driven vehicle;
a charger-side connecting part provided in an external charger, the charger-side connecting part being configured to be connected to the vehicle-side connecting part to supply 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 to the charger-side connector via the vehicle-side connecting part and the charger-side connecting part, the vehicle-side circuit being grounded in a state that the vehicle-side connecting part and the charger-side connecting part are connected to each other,wherein the vehicle-side circuit includes;
a power source;
a switch electrically connected to the power source and turns on or off current supply from the power source;
a first resistor electrically connected between the switch and the vehicle-side connecting part;
a second resistor electrically connected to the first resistor in series between the first resistor and the vehicle-side connecting part;
a voltage detector which detects a voltage at a connection point of the first resistor and the second resistor; and
a determining part which determines a state of connection between the vehicle-side connecting part and the charger-side connecting part 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.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
15 Claims
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1. A circuit, comprising:
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a vehicle-side connecting part provided in an electrically driven vehicle; a charger-side connecting part provided in an external charger, the charger-side connecting part being configured to be connected to the vehicle-side connecting part to supply 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 to the charger-side connector via the vehicle-side connecting part and the charger-side connecting part, the vehicle-side circuit being grounded in a state that the vehicle-side connecting part and the charger-side connecting part are connected to each other, wherein the vehicle-side circuit includes; a power source; a switch electrically connected to the power source and turns on or off current supply from the power source; a first resistor electrically connected between the switch and the vehicle-side connecting part; a second resistor electrically connected to the first resistor in series between the first resistor and the vehicle-side connecting part; a voltage detector which detects a voltage at a connection point of the first resistor and the second resistor; and a determining part which determines a state of connection between the vehicle-side connecting part and the charger-side connecting part 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification