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. 28, 2003
Filed:
Sep. 24, 2002
Alois Fuerhapter, Graz, AT;
Eduard Unger, Leibnitz, AT;
AVL List GmbH, Graz, AT;
Abstract
The invention relates to a method for controlling the operation of an internal combustion engine that is operated, in at least one operational range, with a homogeneous charge compression ignition mode, combustion history being monitored and evaluated by measuring at least one parameter relevant to combustion selected from the group comprising the start of combustion, the duration of combustion and the rate of combustion, and at least one parameter relevant to combustion being controlled, for subsequent combustion events, on account of the evaluation of the combustion. In order to stabilize combustion in the homogeneous charge compression ignition mode of operation in the easiest possible way, the inventors propose to vary the level of turbulence in the combustion chamber for the purpose of controlling combustion, the level of turbulence being temporarily raised to stabilize combustion.