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Cooling System for Electric Vehicle

  • US 20120168140A1
  • Filed: 08/25/2010
  • Published: 07/05/2012
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A cooling system for an electric vehicle, comprising:

  • a cooling unit that cools an electric drive unit that electrically drives the electric vehicle; and

    a control unit that controls cooling of the electric drive unit by controlling the cooling unit;

    wherein;

    the control unit controls the cooling unit in a first cooling mode that provides a first cooling capacity when a force for driving the electric vehicle due to the electric drive unit is in a first operational region, and controls the cooling unit in a second cooling mode that provides a second cooling capacity that is higher than the first cooling capacity when the force for driving the electric vehicle due to the electric drive unit is in a second operational region that is higher than the first operational region; and

    in the second cooling mode, the control unit controls the cooling unit so that the second cooling capacity becomes higher as a rotational speed of the electric drive unit decreases.

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