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Initialization sequence for a vehicle grille shutter

  • US 9,879,589 B2
  • Filed: 08/06/2012
  • Issued: 01/30/2018
  • Est. Priority Date: 08/06/2012
  • Status: Active Grant
First Claim
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1. A method of initializing operation of a shutter arranged relative to a grille opening in a vehicle having a power-plant, the method comprising:

  • detecting via a controller a start-up of the power-plant;

    sensing via the controller a temperature of ambient air upon the start-up of the power-plant;

    commanding the shutter, via the controller, to achieve a fully-opened position when the sensed temperature of ambient air upon the start-up of the power-plant is above a predetermined value such that a flow of ambient air to the power-plant through the grille opening is substantially unrestricted;

    sensing via the controller a temperature of the power-plant;

    commanding the shutter, via the controller, to achieve a fully-closed position when the temperature of the power-plant is maintained below a threshold value such that the flow of ambient air through the grille opening to the power-plant is substantially blocked; and

    identifying via the controller that the shutter has achieved full travel following the shutter having achieved each of the fully-opened position and the fully-closed position in sequence;

    wherein said identifying that the shutter has achieved full travel is indicative of the operation of the shutter having been initialized.

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