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:
Jan. 16, 2007
Filed:
Nov. 05, 2003
Rainer Weigand, Ludwigsburg, DE;
Karl Dums, Renningen, DE;
Rainer Weigand, Ludwigsburg, DE;
Karl Dums, Renningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method and an arrangement for controlling a drive unit (), especially of a vehicle, having a combustion engine (). The method and arrangement make possible a correct charge control when utilizing a secondary air charger () as well as make possible a diagnosis of the secondary air charger (). Secondary air is blown into an exhaust-gas system () of the combustion engine () via the secondary air charger (). The secondary air charger () is driven by a pressure drop across an actuating element () for adjusting an air supply to the engine (). The actuating element () is driven for adjusting an air supply to the engine () corrected in dependence upon an air mass flow driving a turbine () of the secondary air charger ().