Visteon Global Technolgoies, Inc.

Lawrence William Smith

Gerhard Allan Dage

Shane A Harte

Yong Huang

Rodney James Callahan

A method for controlling a vehicle air-conditioning system for cooling an interior of a vehicle is disclosed. The vehicle air conditioning system has a compressor coupled to an electronic control valve. The method includes reading a user manipulatable switch, determining a desired vehicle interior temperature based on the read user manipulatable switch, reading a plurality of sensors indicative of an interior and an exterior climate of the vehicle, determining a heat load on the vehicle air conditioning system, determining a desired evaporator discharge temperature, evaluating a humidity level inside the vehicle by determining a humidity ratio, filtering the updated electronic control valve duty cycle to obtain a new electronic control valve duty cycle based on the desired evaporator discharge temperature, and sending the new electronic control valve duty cycle to a compressor controller, wherein the controller is in communication with the electronic control valve and commands the valve to operate at the new duty cycle.

Electronic control strategy for A/C compressor

A method of thermal management for a thermal management system in a vehicle includes the steps of selecting a thermal management function. The method also includes the steps of adjusting a temperature within the thermal management system using the thermal management function and using the adjusted temperature within the thermal management system to control a temperature within an occupant compartment of the vehicle.

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Fort Wayne, IN, United States of America

Lawrence William Smith