×

Apparatus for controlling an automotive air-conditioner

  • US 5,020,424 A
  • Filed: 08/01/1990
  • Issued: 06/04/1991
  • Est. Priority Date: 08/03/1989
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for controlling an automotive air-conditioner including an air-flow duct having at least left and right air outlets disposed on left and right sides, respectively, a passenger component of a motor vehicle, said apparatus comprising:

  • (a) an air-distribution door adapted to be disposed adjacent to a downstream end of the air-flow duct for changing proportions of air distributed toward the left air outlet and air distributed toward the right air outlet;

    (b) air-distribution setting means for setting proportions of air to be distributed toward said left air outlet and air to be distributed toward said right air outlet;

    (c) solar radiating direction calculation means for calculating a direction of solar radiation based on quantities of solar radiation detected by at least two solar radiation sensors;

    (d) solar radiation quantity calculation means for calculating an intensity of solar radiation based on the detected solar radiation quantities;

    (e) air distribution door drive means for actuating said air distribution door selectively in an automatic mode and in a manual mode, based on an air distribution rate calculated by said air-distribution setting means and said solar radiating direction calculation means; and

    (f) control system calculation means for selecting one of the automatic mode and the manual mode based on a predetermined solar radiation quantity when a vehicle passenger compartment temperature is lower than a predetermined temperature, and based on a characteristic performance curve higher than said predetermined solar radiation quantity when the vehicle passenger compartment temperature is higher than said predetermined temperature.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×