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DRIVE FORCE OUTPUT APPARATUS FOR VEHICLE

  • US 20130179020A1
  • Filed: 01/11/2013
  • Published: 07/11/2013
  • Est. Priority Date: 01/11/2012
  • Status: Active Grant
First Claim
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1. A drive force output apparatus for a vehicle, comprising:

  • an internal combustion engine;

    a plurality of motor generators;

    a drive force transmission arrangement that includes at least one drive force dividing mechanism, wherein an engine shaft of the internal combustion engine, rotatable shafts of the plurality of motor generators and a drive force output shaft are interconnected with each other through the drive force transmission arrangement in a manner that enables transmission of a drive force through the drive force transmission arrangement, and the drive force output shaft is connected to a plurality of wheels of the vehicle to transmit a drive force;

    a battery that is connected to the plurality of motor generators to output and receive an electric power relative to the plurality of motor generators;

    an engine shaft demand motor generator torque computing section that computes an engine shaft demand motor generator torque, which is a torque that is provided from the plurality of motor generators and is required by the engine shaft of the internal combustion engine to control a rotational speed of the internal combustion engine;

    an output shaft demand motor generator torque computing section that computes an output shaft demand motor generator torque, which is a torque that is provided from the plurality of motor generators and is required by the drive force output shaft to ensure supply of a required drive force of the vehicle and to limit input and output of the battery; and

    a motor generator torque command value computing section that computes a torque command value of each of the plurality of motor generators through use of an equation of torque equilibrium, which corresponds to the drive force transmission arrangement, based on the engine shaft demand motor generator torque and the output shaft demand motor generator torque.

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