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:
Feb. 09, 1988
Filed:
Oct. 16, 1986
James J Samuel, Essington, GB;
Abstract
In an engine management system which stores a control value FBPOS and increments or decrements this according to whether an oxygen sensor in the exhaust stream indicates that the engine is running lean or rich and which controls the duration of pulses applied to fuel injectors of the engine according to the deviation of the actual control value FBPOS from a reference value, a compensating adjustment is determined and applied to the pulse length duration in order to reduce any difference in the level of the actual control value FBPOS as between the closed-throttle running condition and either the open-throttle running condition or the reference value. The system thus serves to reduce the time taken to readjust upon opening and closing of the throttle and to minimize the emission of pollutants from the engine exhaust.