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Electric automobile driving apparatus

  • US 5,151,641 A
  • Filed: 08/06/1990
  • Issued: 09/29/1992
  • Est. Priority Date: 08/21/1989
  • Status: Expired due to Fees
First Claim
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1. An electric automobile driving apparatus comprising:

  • a) a main battery for outputting a DC voltage having a predetermined value;

    b) an inverter for converting said DC voltage output from said main battery into the same number of alternating currents as a predetermined number of phases;

    c) a motor provided with the same number of primary coils as said predetermined number of phases for converting said alternating currents which are output from said inverter into a magnetic field and a secondary coil disposed in close proximity to at least one of said primary coils so that said magnetic field generated by said primary coils induces a secondary voltage in aid secondary coil, the magnetic filed also inducing a torque on a rotor of said motor;

    d) a control unit for driving said motor by alternating said alternating currents output from said inverter;

    e) an auxiliary battery for supplying an auxiliary voltage to electric appliances installed in an electric automobile; and

    f) a rectifier for converting said secondary voltage into a DC voltage having a predetermined value as a charging voltage, and charging said auxiliary battery with, and driving said electrical appliances by, said charging voltage.

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