Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1993-06-03
1994-09-27
Hickey, R. J.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 3, 320 14, H02J 710
Patent
active
053509943
ABSTRACT:
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.
REFERENCES:
patent: 3820000 (1974-06-01), Smith
patent: 4127803 (1978-11-01), Etienne
patent: 5151641 (1992-09-01), Shamoto
Fujita Kouetsu
Ito Yoshio
Kinoshita Shigenori
Motoyoshi Osamu
Yanase Takao
Fuji Electric & Co., Ltd.
Hickey R. J.
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