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Method for managing the “stop-and-start” mode in a motor vehicle equipped with an internal combustion engine

  • US 7,347,175 B2
  • Filed: 12/13/2005
  • Issued: 03/25/2008
  • Est. Priority Date: 12/23/2004
  • Status: Active Grant
First Claim
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1. A method for managing the “

  • stop-and-start”

    mode in a motor vehicle equipped with an internal combustion engine;

    the method comprises the phases of;

    determining a state of charge (SOC) of a battery of the motor vehicle;

    determining a state of motion of a crankshaft of the internal combustion engine by selecting one of the following alternatives;

    the crankshaft is stationary, the crankshaft is in the starting phase, the crankshaft is in rotation but is not capable of being self-sustaining, the crankshaft is in rotation and capable of being self-sustaining, and the crankshaft is in the stopping phase;

    determining the electric power consumed overall by the electrical consumers of the motor vehicle; and

    enabling or disabling the “

    stop-and-start”

    mode as a function of the state of charge (SOC) of the main battery, as a function of the state of motion of the crankshaft of the engine, and as a function of the electric power consumed overall by the electrical consumers of the motor vehicle.

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