The subject invention provides a compressor assembly for an air
conditioning system for a vehicle. The compressor assembly is of the
variable displacement angle wobble plate type, and includes a housing
that defines a suction cavity, a discharge cavity, and a crankcase. An
electronic control valve controls the flow of a fluid between the
discharge cavity and the crankcase for pressurizing the crankcase to
de-stroke the compressor assembly. The control valve includes a pressure
sensing member, which is responsive to a suction pressure to open fluid
communication between the discharge cavity and the crankcase when the
suction pressure is below a pre-determined set-point. The control valve
also includes an actuator port in fluid communication with the discharge
cavity for urging the member into the activated position to open fluid
communication between the discharge cavity and the crankcase when the
suction pressure is above the pre-determined set-point.