FAULT DIAGNOSTIC DEVICE FOR VEHICLE CHARGING SYSTEM
First Claim
1. A fault diagnostic device for a charging system of a vehicle, comprising:
- a control unit which is connected to a charger mounted on the vehicle for a battery mounted on the vehicle to constitute a circuit; and
a charging start signal circuit which causes the charger to output a charging start signal to the control unit,wherein the control unit includes a fault determination unit which determines fault of the charging start signal circuit, andwherein the fault determination unit judges the charging start signal circuit to be faulty if the control unit is not input with the charging start signal when the control unit is activated in response to turning on of an ignition switch of the vehicle.
2 Assignments
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Accused Products
Abstract
A fault diagnostic device of a vehicle includes a starting circuit which causes a charger mounted on the vehicle to output a charging start signal and thereby activate a control unit for controlling charging of a battery mounted on the vehicle when a charging gun is connected to the charger. The control unit causes the charger to output the charging start signal when the charger is activated in response to turning on of an ignition switch, and has a fault determination function whereby, if the control unit is not input with the charging start signal, it is judged that a disconnection or power-supply short circuit has occurred in a charging start signal circuit of the starting circuit.
28 Citations
7 Claims
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1. A fault diagnostic device for a charging system of a vehicle, comprising:
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a control unit which is connected to a charger mounted on the vehicle for a battery mounted on the vehicle to constitute a circuit; and a charging start signal circuit which causes the charger to output a charging start signal to the control unit, wherein the control unit includes a fault determination unit which determines fault of the charging start signal circuit, and wherein the fault determination unit judges the charging start signal circuit to be faulty if the control unit is not input with the charging start signal when the control unit is activated in response to turning on of an ignition switch of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification