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, 2012
Filed:
Jan. 27, 2006
Thomas Wahl, Pforzheim, DE;
Walter Strassner, Schorndorf, DE;
Lothar Diehl, Gerlingen, DE;
Stefan Rodewald, Ditzingen, DE;
Juergen Sindel, Vaihingen/Enz, DE;
Thomas Wahl, Pforzheim, DE;
Walter Strassner, Schorndorf, DE;
Lothar Diehl, Gerlingen, DE;
Stefan Rodewald, Ditzingen, DE;
Juergen Sindel, Vaihingen/Enz, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for the voltage-controlled performance regulation of the heating of an exhaust-gas probe in the exhaust system of an internal combustion engine. The aim of the invention is to provide a method in which the operating temperature of the probe is achieved in the shortest possible time without damage to the probe. To achieve this, the heating voltage during the heating phase of the probe is rapidly brought up to a high temperature in a start phase in relation to a subsequent phase, or a dramatic leap in temperature is achieved, preferably up to the full operating voltage and the heating voltage is then continuously or quasi-continuously reduced.