Patent Number: 6,168,515

Title: Air conditioning intake door control

Abstract: A vehicle air conditioning control system includes an actuator for controlling the position of an outside air intake door and an ambient exhaust gas sensor. A controller of the control system monitors a time rate of change of the degree of uncleanness periodically measured on the basis of the output of the sensor, and commands the actuator to bring the intake door to the fully closed position for the inside air recirculation mode if a first requirement about a previous exhaust gas concentration change and a second requirement about a current exhaust gas concentration change are both met.

Inventors: Daimon; Yuji (Tochigi, JP), Nagayama; Hiroki (Yokohama, JP)

Assignee: Calsonic Corporation

International Classification: B60H 1/00 (20060101); G01N 33/00 (20060101); B61D 027/00 (); B63J 002/00 ()

Expiration Date: 01/02/2018