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:
May. 20, 1997
Filed:
Mar. 04, 1996
Jessy W Grizzle, Ann Arbor, MI (US);
Jing Sun, Novi, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A speed control system is shown for an internal combustion engine (10) having an intake manifold (44) and throttling device (96) connected thereto in parallel with the main throttle plate (62). After an idle speed command is detected (200), the engine (10) is decelerated (204-230) to a preselected speed by adjusting the throttling device (96) to concurrently force both engine speed and engine acceleration within a predetermined acceleration/speed range(s). When the preselected speed is reached, engine speed is regulated (300-328) to a desired idle speed by adjusting the throttling device (96) to force a difference between the engine and idle speed towards zero.