B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
B60L 11/18 (2006.01) H02J 7/02 (2006.01)
Patent
CA 2097787
ABSTRACT OF THE DISCLOSURE An electric system for an electric vehicle includes a main battery used for driving the vehicle, an auxiliary battery used for accessories of the vehicle, an AC motor for driving one or more wheels, an inverter for converting DC power supplied from the main battery to AC power to be supplied to the AC motor, and an auxiliary battery charging circuit for charging the auxiliary battery by using the AC power from the inverter. When charging the auxiliary battery, the AC power is insulatedly transformed and then rectified. In another example, an input capacitor in the inverter is charged by a DC-DC converter connected with the auxiliary battery as its power supply when the inverter starts. The system enables the auxiliary battery charging circuit to be small, light and low cost. The system can also charge the auxiliary battery for accessories even when the vehicle is stopping
Fujita Kouetsu
Ito Yoshio
Kinoshita Shigenori
Motoyoshi Osamu
Yanase Takao
Blake Cassels & Graydon Llp
Fuji Electric Co. Ltd.
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