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:
Jul. 13, 1993
Filed:
Jan. 14, 1992
Stefan Krebs, Regensburg, DE;
Erwin Achleitner, Regensburg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A defect of prior art methods for controlling an internal combustion engine based on families of characteristics depending on pressure and rpm is that an air mass being taken in is a function of an air temperature in a cylinder and thus of heating in an intake section. This defect is corrected according to the invention by multiplying a basic fuel value taken from a basic family of characteristics by a factor having a denominator containing a correction temperature being determinative for heating-up the intake air in the intake section as a function of its temperature and of an air flow and being taken from a corresponding family of temperature characteristics.