Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1998-03-06
1999-11-30
Elms, Richard T.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
180 653, 307 19, 320138, H02J 110
Patent
active
059947896
ABSTRACT:
A system is provided to effectively use the electric charge of a capacitor provided for an inverter in an electric vehicle when the capacitor discharges and to decrease the time required for discharge. An inverter for converting the DC electric power of a main battery into AC electric power to drive a traveling motor is provided with a smoothing capacitor to be charged through a precharge contactor. A DC/DC converter is used to charge a sub-battery using the electric power from the main battery when an electric vehicle runs. When the capacitor discharges, the electric charge of the capacitor is used to charge the sub-battery through the DC/DC converter. Because no discharge circuit is used when the capacitor discharges, it is possible to complete discharge in a short time and without the generation of heat by the discharge circuit.
REFERENCES:
patent: 5619107 (1997-04-01), Shinohara et al.
patent: 5717310 (1998-02-01), Sakai et al.
patent: 5783872 (1998-07-01), Blair
patent: 5793189 (1998-08-01), Kawaguchi et al.
Elms Richard T.
Honda Giken Kogyo Kabushiki Kaisha
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