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. 31, 2000
Filed:
Nov. 23, 1999
Applicant:
Inventors:
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N / ;
U.S. Cl.
CPC ...
123556 ; 12317921 ;
Abstract
In the method, the intake air for an internal combustion engine is heated both during the starting and/or warm-running phases by at least one electrically heatable heating element arranged upstream of the air inlet to the internal combustion engine and wherein the heating period for the pre-start is selected on the basis of the temperature of the cooling water of the internal combustion engine and the temperature of the unheated air taken in by the internal combustion engine, and the heating period for the post-start is selected independently of the pre-start heating time and selected solely on the basis of the cooling-water temperature.