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Control system for hybrid vehicle

  • US 9,908,524 B2
  • Filed: 08/31/2016
  • Issued: 03/06/2018
  • Est. Priority Date: 09/08/2015
  • Status: Active Grant
First Claim
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1. A control system for a hybrid vehicle, the hybrid vehicle being configured to travel by using power of at least one of an engine and a rotary electric machine, the hybrid vehicle being configured to be able to output request drive power requested by a user,the control system comprising:

  • a first electronic control unit being programmed to control the engine; and

    a second electronic control unit being programmed to control the rotary electric machine, the second electronic control unit being programmed to output an engine command signal to the first electronic control unit through communication with the first electronic control unit, andthe first electronic control unit being programmed to;

    a) control the engine in accordance with the engine command signal received from the second electronic control unit, when a communication abnormality with the second electronic control unit does not occur; and

    b) execute fixing operation control in which the engine is controlled such that at least one of speed, output power, and output torque of the engine becomes a corresponding fixed value, when the communication abnormality with the second electronic control unit occurs.

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