Compressor torque estimate device, engine controller and...

Details Compressor torque estimate device, engine controller and... Compressor torque estimate device, engine controller and...

2005-06-28

2005-06-28

Norman, Marc (Department: 3744)

Refrigeration

Automatic control

Refrigeration producer

C062S228100, C062S228500, C062S244000, C417S012000, C417S034000, C417S213000

Reexamination Certificate

active

06910344

ABSTRACT:
A compressor torque estimate device is used for a variable displacement compressor whose displacement is variable based on a compressor control signal for estimating a compressor torque of the compressor. The compressor torque estimate device includes a torque calculator and a corrector. The torque calculator calculates a torque required for driving the compressor based on the compressor control signal, thereby obtaining a calculated torque. The corrector corrects the calculated torque by a procedure of first-order lag, thereby obtaining a corrected torque. The corrector also estimates the corrected torque to be the compressor torque.

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patent: 2001-180261 (2001-07-01), None

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