Vehicle charge system and vehicle charge method

摘要

A vehicle charge system has a connection cable to supply power from an outside power supply, such as a commercial power supply, a driving battery, an auxiliary battery, a driving battery charge apparatus, and an auxiliary battery charge apparatus. When a voltage across the auxiliary battery is below a predetermined constant value, power from the outside power supply is supplied to a control circuit of the auxiliary battery charge apparatus, so that the auxiliary battery charge apparatus charges the auxiliary battery on its own without being controlled by a charge control portion.

主权项

1. A vehicle charge system, comprising:
a driving battery that feeds power to a running motor of a vehicle; an auxiliary battery that feeds power to an auxiliary machine of the vehicle; a charge control portion that controls charging of each of the driving battery and the auxiliary battery; a driving battery charge apparatus that is controlled by the charge control portion and charges the driving battery ; and an auxiliary battery charge apparatus that is controlled by the charge control portion and charges the auxiliary battery , the vehicle charge system being characterized in that: the driving battery charge apparatus is formed of,
a first control circuit,a first power-supply circuit that supplies power to the first control circuit, anda first charge circuit that is capable of charging the driving battery, and the first power-supply circuit is configured to supply power at least from an outside power supply to the first control circuit; and the auxiliary battery charge apparatus is formed of,
a second control circuit,a second power-supply circuit that supplies power to the second control circuit, anda second charge circuit that is capable of charging the auxiliary battery, and the second power-supply circuit is configured to supply power at least from the outside power supply to the second control circuit.