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:
Jul. 06, 2004
Filed:
Oct. 22, 2002
James Patrick Waters, Waterford, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
The present invention is a method and apparatus to determine an amount of aeration of fluids such as engine oil, thus permitting more aggressive operation of an oil-driven actuator, with fewer limitations in scheduling operation of the actuator. It includes monitoring engine speed and fluid temperature, and determining a first and second attitude of the engine relative to a first and second axis, and determines an amount of aeration of the fluid based upon those factors. The method determines an operating range of the fluid-driven actuator based upon the amount of aeration, and then permits the operation of the fluid-driven actuator within the operating range.