Patent · US Active

Method and control unit for determining a future rotational speed

US9926903B2 · kind B2 · utility

0Cited by

2References

23Claims

0Family size

Assignee

SEG Automotive Germany GmbH · DE

Inventors

Matthias Cwik · Stuttgart, DE
Markus Roessle · Stuttgart, DE
Ewald Mauritz · Rutesheim, DE
Stefan Tumback · Stuttgart, DE

Key dates

Filing date	Dec 30, 2010
Grant date	Mar 27, 2018
Priority date	—
Expiry date	Aug 19, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for determining a future rotational speed of a rotating drive shaft of an internal combustion engine is described, in particular while the internal combustion engine coasts after being turned off, the future rotational speed being calculated from a course of measured rotational speeds. To predict a future rotational speed of the drive shaft of the internal combustion engine as accurately as possible, instantaneous rotational speeds measured at different rotational positions of drive shaft are evaluated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.