Energy management system for a motor vehicle electrical system

  • US 6,982,540 B2
  • Filed: 05/03/2002
  • Issued: 01/03/2006
  • Est. Priority Date: 05/05/2001
  • Status: Active Grant
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First Claim
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1. An energy management system for an electrical system of a motor vehicle subjected to a large number of loads, comprising:

  • at least one generator;

    at least one storage battery; and

    a controller of energy distribution in the, system which bases such control at least on efficiency of individual components of the motor vehicle involved in power generation, energy storage and power consumption;

    wherein during selected instants of operation of the motor vehicle, two efficiency chains determined from products of (a) current individual efficiencies for an internal combustion engine in the motor vehicle in combination with the generator driven by the internal combustion engine, and (b) the generator driven by braking energy in combination with the electric store, are compared by the controller.

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