The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 2007
Filed:
Mar. 30, 2006
Michael P. Withrow, Peoria, IL (US);
Kevin L. Dea, Washington, IL (US);
Christopher R. Gehrke, Chillicothe, IL (US);
Michael R. Donoho, Ii, Edelstein, IL (US);
Michael P. Withrow, Peoria, IL (US);
Kevin L. Dea, Washington, IL (US);
Christopher R. Gehrke, Chillicothe, IL (US);
Michael R. Donoho, II, Edelstein, IL (US);
Caterpiller Inc., Peoria, IL (US);
Abstract
A control system for estimating the performance of a compressor is disclosed. The control system has a compressor fluidly connected to an inlet manifold of a power source. The control system also has a power source speed sensor to provide an indication of a rotational speed of the power source, an inlet pressure sensor to provide an indication of a pressure of a fluid within the inlet manifold, an inlet temperature sensor to provide an indication of a temperature of the fluid within the inlet manifold, an atmospheric pressure sensor to provide an indication of an atmospheric pressure, and a control module in communication with each of the sensors. The control module is configured to monitor an engine valve opening duration and an exhaust gas recirculation valve position, and estimate a compressor inlet pressure based on the provided indications, the monitored duration, and the monitored position.