Patent ID: 6341495
Filing Date: 2002-01-29
Classification: B60H

Abstract:
Method for automatically controlling the temperature of the interior of motor vehicles using an electronically controlled air-conditioning system having an evaporator, devices for adjusting the fresh-air fraction and the recirculating-air fraction in the vehicle interior, as well as devices for sensing an evaporator temperature, an interior temperature and an outside-air temperature, the method comprising the acts of:when the recirculating-air fraction is lower than 100%, determining whether the deviation of the actual interior temperature from the desired interior temperature exceeds a defined first threshold, the outside temperature remains essentially constant and the evaporator temperature rises; and increasing the recirculating-air fraction when the recirculating-air fraction is lower than 100%, the deviation of the actual interior temperature from the desired interior temperature exceeds the defined first threshold, the outside temperature remains essentially constant and the evaporator temperature rises.