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Control apparatus and method for engine/electric hybrid vehicle

  • US 4,407,132 A
  • Filed: 12/14/1981
  • Issued: 10/04/1983
  • Est. Priority Date: 02/20/1980
  • Status: Expired due to Term
First Claim
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1. An apparatus for controlling a hybrid vehicle having wheels, an internal combustion engine having a throttle, throttle control means for controlling an opening degree of said throttle, an electric motor, a battery for supplying an electric power to said electric motor, motor control means for controlling said electric power fed from said battery to said electric motor, transmitting means for transmitting a driving power of at least said internal combustion engine and said electric motor to said wheels of said hybrid vehicle, and speed adjustment means for being operated for speed adjustment of said hybrid vehicle, comprising:

  • revolution number providing means responsive to the movement of said hybrid vehicle for providing data concerning the number of revolutions determinable as a function of the speed of said movement of said hybrid vehicle and adaptable to the number of revolutions of said internal combustion engine and the number of revolutions of said electric motor;

    required torque data providing means for determining required torque required by said hybrid vehicle in response to the data provided by said revolution number providing means and the output of said speed adjustment means; and

    control means for controlling said throttle control means and said motor control means in a manner that when said required torque exceeds a predetermined upper limit value of a torque range of said internal combustion engine and when said data concerning the number of revolutions determinable is within a predetermined range of the number of revolutions of said internal combustion engine in which said internal combustion engine is permitted to operate said internal combustion engine will be operated at said predetermined upper limit value and said electric motor will be operated at a motor torque equal to a difference between said required torque and said predetermined upper limit value.

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