Patent ID: 6769979
Filing Date: 2004-08-03
Classification: B60H

Abstract:
An automotive air cleaning system comprising an air cleaner provided on a vehicle in which the air cleaner is kept in operation even while the vehicle is parked so as to improve the quality of air inside a passenger compartment of the vehicle, said automotive air cleaning system further comprising:a sub-battery comprising a secondary battery provided separately from a main battery of said vehicle, said sub-battery operating said air cleaner even while said vehicle is parked, first means for improving the quality of part of the air including means for removing dust from the air within the passenger compartment and means for deodorizing the passenger compartment, said first means driving said air cleaner with said sub-battery while said vehicle is parked, second means for further improving the quality of the air different from the first means for improving the quality of part of the air, said second means operating after an occupant enters said vehicle, means for determining a voltage of said sub-battery, and means for continuing the operation of said first means until the voltage of said sub-battery lowers to a predetermined voltage while said vehicle is parked.