Battery charging device for electric vehicles

Details Battery charging device for electric vehicles Battery charging device for electric vehicles

1992-05-08

1994-02-01

Stephan, Steven L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 2, 307 101, H02J 700

Patent

active

052835138

ABSTRACT:
A battery charging device for electric vehicles with a high-voltage battery, has a first connector to be connected with a high-voltage power source outside the vehicle, a second connector to be connected with a low-voltage power source outside the vehicle, a DC-DC converter for increasing the voltage of the low-voltage power source to a voltage corresponding to the high-voltage battery and a switch for changing-over the connectors are provided. In an emergency where the residual electric energy of the battery is less than required to run the required distance, the electric vehicle can easily be supplied with electric power from other vehicles such as a gasoline engine vehicle having a low-voltage power source and charge the battery by converting the supplied voltage by way of the DC-DC converter to a voltage corresponding to the voltage of the high-voltage battery.

REFERENCES:
patent: 3270267 (1966-08-01), Nolte
patent: 3838327 (1974-09-01), Uemichi et al.
patent: 3898547 (1975-08-01), Poole
patent: 4617506 (1986-10-01), Bogie et al.
patent: 4638236 (1987-01-01), Carr
patent: 4678981 (1987-07-01), Murray

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