초록 ▼

A method for operating a blower of an vehicle air conditioning (a/c) system after ignition off for purging moisture from an evaporator core includes accumulating a/c system data while the a/c system is operating including a/c on time, duty cycle, ambient temperature and mode of operation. When the i

A method for operating a blower of an vehicle air conditioning (a/c) system after ignition off for purging moisture from an evaporator core includes accumulating a/c system data while the a/c system is operating including a/c on time, duty cycle, ambient temperature and mode of operation. When the ignition switch is turned off terminating operation the a/c system, updated data is saved for use in a look up table. A moisture index is selected from the look up table after ignition off as a function of a/c duty cycle, ambient temperature and mode of operation. The moisture index is a measure of the amount of moisture accumulated on the evaporator core which is a function of the a/c duty cycle, ambient temperature and fresh air or recirculated air mode of operation. The blower operates at a speed and for a duration dictated by the moisture index to purge moisture rather than simply operating for a set period of time regardless of moisture present.

대표청구항 ▼

[ What is claimed is:] [1.] A method for operating a blower of an air conditioning system for purging moisture, comprising the steps of:turning a ignition switch on;operating the air conditioning system while the ignition switch is on;accumulating air conditioning system data while the air condition

[ What is claimed is:] [1.] A method for operating a blower of an air conditioning system for purging moisture, comprising the steps of:turning a ignition switch on;operating the air conditioning system while the ignition switch is on;accumulating air conditioning system data while the air conditioning system is operating after the air conditioning system has operated for a predetermined minimum period of time, said air conditioning system data including on time, duty cycle, blower speed, ambient temperature and mode of operation;periodically updating accumulated data;turning the ignition switch off and terminating operating the air conditioning system;saving updated data in a look up table;choosing a moisture index after ignition off from said look up table as a function of duty cycle, blower speed, ambient temperature and mode of operation; andoperating the blower at a speed and for a duration dictated by said moisture index.