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. 09, 1993
Filed:
Aug. 09, 1991
Kah S Oo, Farmington Hills, MI (US);
Gary M Klingler, Milford, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
A speed control system controls the engine throttle to maintain vehicle speed at a desired speed and increments the desired speed to a previous reference speed during resume mode of operation or other speed alteration mode of operation. A control signal is generated which is related to both the difference between actual vehicle speed and desired speed. The control signal is multiplied by a gain value generated with a first amplitude when the vehicle speed is within a preselected range from the reference speed, a second amplitude when the vehicle speed is within the preselected range, and a third amplitude when the vehicle speed is greater than a desired speed. An actuator controls the engine throttle in response to the product of the error signal times the gain value for asymptotically approaching the previous reference speed.