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Method for cooling torque generation assemblies of a hybrid electric vehicle

  • US 6,705,254 B1
  • Filed: 07/30/2002
  • Issued: 03/16/2004
  • Est. Priority Date: 07/30/2002
  • Status: Active Grant
First Claim
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1. An assembly for selectively cooling a motor assembly of a hybrid electric vehicle of the type having an internal combustion engine, said assembly comprising a single radiator assembly which contains coolant and which is coupled to said internal combustion engine and to said motor assembly;

  • a source of energy;

    a single selectively energizable variable speed pump which is coupled to said radiator assembly; and

    a controller which is coupled to said selectively energizable variable speed pump and to said source of energy and which selectively energizes said variable speed pump by communicating energy to said variable speed pump from said source of energy, effective to cause said variable speed pump to communicate coolant to said motor without the use of said internal combustion engine and without the use of said motor.

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