HYBRID VEHICLE WITH MEANS FOR DISCONNECTION OF A DEPLETED AUXILIARY BATTERY IN ORDER TO ALLOW FOR MORE RAPID MAIN BATTERY CHARGING

摘要

A sub DC/DC converter converts an output voltage of a charger into a level of an output of an auxiliary battery, and outputs the output voltage to a power supply line connected to a PLG-ECU and the auxiliary battery. A control unit interrupts a current path from the power supply line to the auxiliary battery when a voltage of the sub auxiliary battery is equal to or lower than a prescribed value.

主权项

1. A vehicle charged with electric power supplied from an external power source through a charging cable, comprising:
a rechargeable main power storage device and a rechargeable sub power storage device; a charger configured to convert electric power supplied from said external power source into electric power for charging said main power storage device; a charging controller that controls charging, said charging controller including a first control block that controls a relay on a current path between said charger and said main power storage device, and a second control block that controls transmission of electric power from said charging cable to said charger; a sub voltage converter configured to convert an output voltage of said charger into a level of an output of said sub power storage device and output the output voltage to a power supply line connected to said first control block of said charging controller and said sub power storage device; and a control unit that interrupts a current path from said power supply line to said sub power storage device when a voltage of said sub power storage device is equal to or lower than a prescribed value, said second control block receiving electric power from said sub power storage device not through said power supply line.