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:
Jul. 24, 2007
Filed:
Jul. 17, 2003
Juergen Sauler, Stuttgart, DE;
Johann Konrad, Tamm, DE;
Axel Heinstein, Wimsheim, DE;
Martin Vollmer, Stuttgart-Weilimdorf, DE;
Juergen Sauler, Stuttgart, DE;
Johann Konrad, Tamm, DE;
Axel Heinstein, Wimsheim, DE;
Martin Vollmer, Stuttgart-Weilimdorf, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A method for determining the ignition angle is provided, in which modifications of manipulated variables which have an influence on the knock limit, and therefore on the optimum ignition angle as well, are dynamically taken into account. To this end, a base ignition angle is first determined, based on the instantaneous engine speed and load. As part of a downstream knock control, a first ignition angle adjustment in the retard direction is determined when knocking has been detected. As part of a knock limit control, a second ignition angle adjustment is also determined when at least one manipulated variable influencing the knock limit changes, with the type of the second ignition angle adjustment, i.e., advancing or retarding, depending on the manipulated variable and its modification.