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:
Dec. 08, 2015
Filed:
Dec. 27, 2012
Robert Bosch Gmbh, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Method for predicting a rotational speed (n) of a drive shaft () in an internal combustion engine (), wherein a past rotational speed (n) of the drive shaft () is determined, characterized in that in order to determine a theoretical rotational speed (nT, nT) of the drive shaft () at a future point in time (tT, tT), the change in the rotational speed (n) between two past events (P, P; P, P) occurring at different times is used, one rotational speed (n, n; n, n) and one point in time (t, t; t, t) being assigned to each event, wherein one point in time (t, t) is an earlier point in time and the other is a later point in time (t, t), which therefore lies before the predicted point in time (tT, tT), wherein a gradient (m) is determined for a period between the two events (P, P; P, P) and is used as the basis for deducing a theoretical future rotational speed (nT, nT) at the future point in time (tT, tT), such that in order to determine the theoretical rotational speed (nT, nT) of the drive shaft () at the future point in time (tT, tT), the determined gradient (m) is used to determine the theoretical rotational speed (nT, nT) at the future point in time (tT, tT), on the basis of the later point in time (t, t), thus determining whether the theoretical rotational speed (nT, nT) actually occurred before the future point in time (tT, tT) or not until afterwards.