Control unit for variable displacement compressor, has compressor control unit transmitting control signal to compressor to increase compressor discharge quantity, when quantity is modified from minimum or zero value to larger value

摘要

The control unit has a compressor control unit controlling quantity of coolant discharge by changing pressure differences in a pressure regulating chamber and a suction chamber. The compressor control unit transmits a displacement control signal to a compressor, such that quantity of compressor discharge is increased, when the discharge quantity is modified from minimum or zero value to a value greater that the minimum or zero value.