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Control Apparatus for Hybrid Vehicle

  • US 20080319594A1
  • Filed: 07/22/2005
  • Published: 12/25/2008
  • Est. Priority Date: 07/23/2004
  • Status: Abandoned Application
First Claim
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1. A control apparatus for a hybrid vehicle that comprises an engine and an electric motor as driving sources for the vehicle, and an energy storage device that stores an output of the engine or a kinetic energy of the vehicle after being converted into electric energy by the electric motor, the engine being a cylinder deactivation engine that is capable of deactivating, the control apparatus comprising:

  • an electric motor-only travel determination device that determines whether a motor-only travel, in which the engine is deactivated and only the motor is used for driving the vehicle, is allowed based on at least vehicle speed;

    an initial state of charge calculating device that calculates an initial state of charge of the energy storage device when an ignition of the vehicle is turned on;

    a running interval state of charge calculating device that calculates an amount of change between a state of charge of the energy storage device at each time the vehicle stops; and

    an upper limit vehicle speed correcting device that corrects an upper limit vehicle speed during an electric motor-only travel that is allowed by the electric motor-only travel determination device based on a difference between the initial state of charge calculated by the initial state of charge calculating device and the running interval state of charge calculated by the running interval state of charge calculating device.

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