Patent ID: 6732938
Filing Date: 2004-05-11
Classification: B60H

Abstract:
A method of operation for an automatic climate controller that develops HVAC climate control commands for regulating an air temperature in a cabin of a motor vehicle in accordance with an occupant set temperature, comprising the steps of:determining a set of HVAC climate control commands for regulating the cabin air temperature at the set temperature under steady-state operating conditions; establishing a steady-state control mode based on the determined set of HVAC climate control commands so long as the cabin air temperature is within a specified amount of the set temperature; and transitioning to a quasi-steady-state control mode when the cabin air temperature deviates from the set temperature by at least said specified amount by: offsetting the determined HVAC climate control commands in a manner to return the cabin air temperature to the set temperature; and variably removing the offsetting of the determined HVAC climate control commands based on a measure of the degree to which the cabin air temperature is returned to the set temperature.