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:
Oct. 19, 1999
Filed:
Sep. 30, 1997
Applicant:
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
12333919 ;
Abstract
A method for determining a rotational speed for an idling control of an internal combustion engine, in particular of a diesel internal combustion engine with an idling controller, includes using a change in a so-called current rotational speed in relation to a previous rotational speed as an input variable for the idling controller. The change is composed of an expansion rotational speed of the respectively last cylinder and of a previously calculated, weighted compression rotational speed of the current cylinder. The expansion rotational speeds of the last two cylinders, as well as the difference between them and the last compression rotational speed are used for that purpose.