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:
Sep. 07, 2010
Filed:
Oct. 04, 2007
Martin Müller, Ann Arbor, MI (US);
Martin Müller, Ann Arbor, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A system and method for controlling boost pressure in various turbo-charged engine configurations as well as variable geometry turbine (VGT) arrangements includes an electronic controller programmed to receive a predetermined desired boost pressure P. A desired pressure delta ΔPacross a waste-gate valve is determined using the desired boost pressure P. A control signal is generated for controlling the waste-gate valve so as to achieve the desired pressure delta ΔP. In boost pressure and vacuum pneumatically-actuated waste-gate valve arrangements, the respective solenoid duty cycles are obtained through use of various data structures. Where a waste-gate valve position is controlled by an electrical motor, the valve position is determined using a data structure as a function of desired waste-gate valve flow at sonic standard conditions.