Patent ID: 6282911
Filing Date: 2001-09-04
Classification: B60H

Abstract:
An air conditioning system for an automotive vehicle having a sunroof which is automatically titled up and down, a ceiling of a passenger compartment which has a ceiling opening located below the sunroof and automatically opened and closed, and air conditioning system comprising:a conditioning air path in which conditioning air flows;blower means for drawing in at least recirculated air recirculating inside the passenger compartment and discharging said recirculated air as conditioning air into said conditioning air path;air temperature controlling means for controlling a temperature of said conditioning air flowing in said conditioning air path;front air outlets to which said conditioning air path leads and through which said conditioning air blows toward passengers in the passenger compartment from the front of the passenger compartment;a roof air path connected to said conditioning air path so as to extend as an extension of said conditioning air path and put said ceiling opening operative as an air outlet;a room temperature sensor for monitoring a room temperature in the passenger compartment of the vehicle;room temperature setting means for setting a desired room temperature; andcontrol means for switching said air conditioning system in operation from a first operation mode wherein said air conditioning system open said sunroof and closes said ceiling opening according to differences of said room temperature from said desired room temperature so that said conditioning air flowing in said conditioning air path is partly introduced into said roof air path and then forced out of the vehicle through said sunroof and partly cooled by said air temperature controlling means and forced to blow into the passenger compartment through said front air outlets to a second operation mode in which, subsequently to operation in said first operation mode, said conditioning air is forced to blow into said passenger compartment through said from air outlets and prevented from blowing into said passenger compartment through said ceiling air opening when said difference of said room temperature from said desired room temperature is larger than a specified value and an amount of said conditioning air blowing into said passenger compartment through said front air outlets is reduced and an amount of said conditioning air that is introduced into said roof air path and then forced to blow into the passenger compartment through said ceiling opening is increased when said difference of said room temperature from said desired room temperature is smaller than said specified value.