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:
Apr. 19, 2011
Filed:
Jan. 12, 2009
Erwin Bauer, Lappersdorf, DE;
Dietmar Ellmer, Regensburg, DE;
Jan Haag, Nittenai, DE;
Benjamin L'hénoret, Toulouse, FR;
Erwin Bauer, Lappersdorf, DE;
Dietmar Ellmer, Regensburg, DE;
Jan Haag, Nittenai, DE;
Benjamin L'Hénoret, Toulouse, FR;
Continental Automotive GmbH, Hannover, DE;
Abstract
For at least one disturbance variable of the cylinder pressure signal, which disturbance variable occurs only during specific limited time spans as the pressure profile of an operating cycle, a filter tuned to the type of disturbance variable is fixed and is assigned to the corresponding disturbance variable time window or windows () in the operating cycle. The cylinder pressure signal () is then filtered as a function of the crankshaft angle, in that, according to the crankshaft position, a time-tuned and type-tuned filter is applied to a current disturbance variable.