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Hybrid propulsion system for a motor vehicle and a method of operating the hybrid propulsion system

  • US 5,698,905 A
  • Filed: 10/04/1995
  • Issued: 12/16/1997
  • Est. Priority Date: 10/05/1994
  • Status: Expired due to Fees
First Claim
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1. A method of operating and starting a hybrid road vehicle under emergency conditions, said method comprising the steps of:

  • moving the hybrid road vehicle and moving at least one wheel of the hybrid road vehicle;

    switching an electrical generator from operation as a generator to operation as a motor, the electrical generator being in driving connection with an internal combustion engine;

    switching at least one electric motor disposed at the at least one wheel from operation as a motor to operation as a generator;

    connecting the at least one motor to the electrical generator with connecting circuitry;

    driving the at least one electric motor as a generator during movement of the at least one wheel of the hybrid road vehicle;

    accumulating electric energy from the at least one electric motor;

    supplying electric energy, generated by the at least one electric motor, to the electrical generator; and

    starting the internal combustion engine with the electrical generator.

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