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. 05, 1991
Filed:
Apr. 13, 1990
Applicant:
Inventors:
Peter G Scotson, West Midlands, GB;
John M Ironside, Birmingham, GB;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F02D / ;
U.S. Cl.
CPC ...
123399 ;
Abstract
An engine throttle control system actuates a throttle by means of a motor. In order to overcome static friction, a differentiator differentiates a throttle position demand signal and adds the differentiated signal to the demand signal. This composite signal is used by a control unit to drive the motor.