Patent · US Active

Method of torque prediction for automotive air conditioning compressor

US9987905B2 · kind B2 · utility

0Cited by

5References

4Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Joseph M. Bona · Williamsville, US
Matthew R. Warren · Buffalo, US
Ernesto Gutierrez, III · Swindon, GB

Key dates

Filing date	Dec 19, 2013
Grant date	Jun 5, 2018
Priority date	—
Expiry date	Jul 25, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2200/101
WIPO fieldTransport
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.