Refrigerant cycle device and control system for vehicle

Details Refrigerant cycle device and control system for vehicle Refrigerant cycle device and control system for vehicle

2006-10-17

2010-11-23

Jules, Frantz F (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S133000

Reexamination Certificate

active

07836716

ABSTRACT:
A refrigerant cycle device includes a compressor driven by a vehicle engine for drawing and compressing gas refrigerant from an evaporator, a variable displacement mechanism which varies a discharge capacity of the compressor based on a control value from an exterior to approach a suction pressure of the compressor to a predetermined suction pressure, and a control unit for controlling the discharge capacity of the compressor. The control unit includes a determining part for determining an accelerating state of the vehicle engine, a detecting member which detects a thermal load of the evaporator, a setting part for setting a minimum control value in accordance with the thermal load, and a controlling part. The controlling part reduces the control value to the minimum control value and returns the reduced control value to a control value before the reducing, when the determining means determines an accelerating state of the vehicle engine.

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