Method for controlling a displacement changing mechanism of a va

Details Method for controlling a displacement changing mechanism of a va Method for controlling a displacement changing mechanism of a va

1988-05-12

1989-06-27

Freeh, William L.

Refrigeration

Automatic control

Responsive to vehicle body motion or traction

62227, 622285, 417 53, 417222, F25B 102, F04B 128

Patent

active

048417378

ABSTRACT:
A method for controlling the displacement changing mechanism of a variable displacement wobble plate type compressor arranged in a car air-conditioning circuit is carried out in a manner such that, when the operating condition of the compressor is stable and when hunting of a controlled variable of the air-conditioner, i.e., hunting of a temperature at the outlet end of an evaporator of the air-conditioning circuit, occurs, a manipulated variable to be given to the displacement changing mechanism to cause a change in the controlled variable is reduced so that hunting of the controlled variable is suppressed and the controlled variable reaches a desired value.

REFERENCES:
patent: 4510764 (1985-04-01), Suzuki
patent: 4561260 (1985-12-01), Nishi
patent: 4747754 (1988-05-01), Fujii
patent: 4796438 (1989-01-01), Sato

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