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. 01, 2022
Filed:
Oct. 15, 2019
Delphi Automotive Systems Luxembourg SA, Bascharage, LU;
Konrad A. Weber, Rehlingen-Siersburg, DE;
DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA, Luxembourg, LU;
Abstract
A method of controlling the fuel air mixture of an internal combustion engine following a cold restart includes determining a control parameter based on the value of current coolant temperature at time of current engine start, the value of coolant temperature at time of the previous engine start, a calibratable reference temperature, the total accumulated fuel mass injected during previous engine run time, the time the engine was off before the restart, and the time the engine was run after previous start. The method also includes controlling the fuel air mixture based on said control parameter.