Method of torque prediction for automotive air conditioning compressor
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United States of America Patent
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Jun 5, 2018
Issued Date -
Jun 26, 2014
app pub date -
Dec 19, 2013
filing date -
Dec 21, 2012
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Abstract
The torque of a vehicular air-conditioning compressor is predicted by the steps of starting a vehicle air-conditioning system having an engine and engine control module for controlling multiple vehicle functions, calculating a steady state torque value using an rpm value from the engine, calculating an engine RPM transient torque value using the rpm value from the engine, calculating a electronic control valve current transient torque value using a current value applied to an electronic control valve, selecting a final torque value from a group consisting of the steady state torque value, the engine RPM transient torque value, and the electronic control valve transient torque value, and providing a final torque value to the vehicle engine control module to control a predetermined vehicle function.
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