초록 ▼

In an electronic method and apparatus for an air conditioning system, an electrically operated switch door and an electrically operated air purifier are selectively activated in response to the respective degrees of pollution in the air within a passenger compartment and pollution of the outside air

In an electronic method and apparatus for an air conditioning system, an electrically operated switch door and an electrically operated air purifier are selectively activated in response to the respective degrees of pollution in the air within a passenger compartment and pollution of the outside air flowing into the compartment in consideration with the position of the switch door, thereby to enhance the elimination effect of the polluted air in the compartment and to avoid frequent operation of the air purifier.

대표청구항 ▼

An electronic control method of controlling an automobile air conditioning system which includes an electrically operated switch door arranged in its first position to allow the flow of outside air into a passenger compartment through an air duct of said system and arranged in its second position to

An electronic control method of controlling an automobile air conditioning system which includes an electrically operated switch door arranged in its first position to allow the flow of outside air into a passenger compartment through an air duct of said system and arranged in its second position to allow the flow of inside air recirculating into said compartment through said air duct, and which system is associated with an electrically operated air purifier for purifying the air in said compartment, said control method comprising the steps of: producing at a predetermined time interval a series of first electric signals indicative of the degree of pollution of outside air flowing into said compartment through said air duct and detecting a first difference value between the preceding and following first electric signals; producing at said time interval a series of second electric signals indicative of the degree of pollution of inside air in said compartment and detecting a second difference value between the preceding and following second electric signals; switching over said switch door from its first position to its second position when said first difference value is larger than a predetermined first standard value under a first set of control conditions where said switch door is manually set in its first position, and subsequently either energizing said air purifier when said second difference value is larger than a predetermined second standard value or energizing said air purifier when said second difference value is larger than said second standard value under a second set of control conditions where said switch door is manually set in its second position.