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:
Aug. 14, 2001
Filed:
Jul. 19, 1999
Applicant:
Inventors:
Rudolf Klein, Weinstadt, DE;
Harald Brösecke, Stuttgart, DE;
Assignee:
DaimlerChrysler AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 2/300 ;
U.S. Cl.
CPC ...
F02D 2/300 ;
Abstract
In a method for early diagnosis of malfunctions of emission-improving measures, a pressure-operated actuating element is provided in an internal combustion engine, and this actuating element opens and closes as a function of an actuating pressure supplied a bypass passage that bypasses the turbine of an exhaust turbocharger, the actuating element being supplied with a diagnosis pressure as the actuating pressure to check its operation, and a fault signal being generated if the actual value of the intake pressure that establishes itself in the intake manifold of the internal combustion engine differs from a target value for the intake pressure.