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Hybrid vehicle with combustion engine/electric motor drive

  • US 20030205422A1
  • Filed: 05/02/2002
  • Published: 11/06/2003
  • Est. Priority Date: 05/02/2002
  • Status: Active Grant
First Claim
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1. A work vehicle comprising:

  • an engine;

    a generator coupled to the engine so as to be driven by the engine;

    a drive shaft coupled to the engine so as to be driven by the engine;

    a drive axle coupled to the drive shaft so as to be driven by the drive shaft;

    first and second wheel ends coupled to the drive axle so as to be able to be driven by the drive axle;

    first and second wheels coupled to the associated first and second wheel ends;

    a wheel end drive assembly coupled to at least one wheel end so as to be able to drive the at least one wheel end, the wheel end drive assembly including;

    an electric motor powered by the generator;

    a planetary gearset, the planetary gearset having a first input coupled to the drive axle, a second input coupled to the electric motor, and an output shaft; and

    a planetary reduction gear having an input coupled to the output shaft of the planetary gearset and an output coupled to the wheel end;

    a central tire inflation system including;

    an air supply source;

    an air manifold;

    an inflatable tire coupled to the air manifold and disposed on the wheel;

    a central tire inflation system control unit configured to generate a central tire inflation system control signal, wherein the air manifold regulates the air supplied to the wheel in response to the control signal.

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