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:
Mar. 27, 2007
Filed:
Apr. 19, 2004
Mukunda Prema, Canton, MI (US);
Fazal Syed, Canton, MI (US);
Ryan Mcgee, Ann Arbor, MI (US);
Kevin Davies, Oak Park, MI (US);
Mukunda Prema, Canton, MI (US);
Fazal Syed, Canton, MI (US);
Ryan McGee, Ann Arbor, MI (US);
Kevin Davies, Oak Park, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method and system of engine state determination includes a plurality of requestors each of which compares vehicle or environmental conditions to a requirement and outputs a request state variable. The requestors are grouped according to function or component and the request state variables are combined and simplified at the output of each group. A state machine receives the final combined and simplified request state, and evaluates it according to the active or inactive status of the requests. The state machine carries out the proper state transition and outputs the desired engine state to engine control algorithms that start or stop the engine as necessary.