Vehicle air conditioner with discharge capacity control of...

Details Vehicle air conditioner with discharge capacity control of... Vehicle air conditioner with discharge capacity control of...

2006-08-29

2006-08-29

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Responsive to vehicle body motion or traction

C062S150000, C062S228400, C062S229000, C062S244000

Reexamination Certificate

active

07096680

ABSTRACT:
In a vehicle air conditioner having a variable displacement compressor, a control unit calculates a target cooling temperature of air to be cooled by an evaporator, and controls a discharge capacity of the compressor such that a detected air temperature of the evaporator approaches the target cooling temperature. When a deceleration running state of the vehicle is detected, the control unit sets a corrected target cooling temperature lower than the target cooling temperature by a predetermined temperature, and controls the discharge capacity of the compressor such that the detected air temperature approaches the corrected target cooling temperature when the detected air temperature is lower than the corrected target cooling temperature, or controls the discharge capacity of the compressor approximately at the maximum capacity regardless of the corrected target cooling temperature when the detected air temperature is not lower than the corrected target cooling temperature.

REFERENCES:
patent: 5546754 (1996-08-01), Terao et al.
patent: 6330909 (2001-12-01), Takahashi et al.
patent: 6715303 (2004-04-01), Masuda et al.
patent: 2005/0086953 (2005-04-01), Sugesawa et al.
patent: 57-44511 (1982-03-01), None
patent: 11-115473 (1999-04-01), None
patent: 2001-105846 (2001-04-01), None
patent: 2003-165331 (2003-06-01), None

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