Patent · US Active

Method and apparatus for evaluating abnormal combustion events of an internal combustion engine of a motor vehicle by regression calculation of a physical variable

US9938918B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Elvira Perless · Oberriexingen, DE
Robert Sloboda · Yokohama, JP
Matthias Biehl · Krottelbach, DE
Stefan Kempf · Alzenau, DE

Key dates

Filing date	Oct 29, 2014
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Dec 5, 2036

Classification

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

Abstract

A method for evaluating abnormal combustion events of an internal combustion engine of a motor vehicle by regression calculation of a physical reference variable, in which method a recognition variable of the abnormal combustion event is calculated from a measured sensor signal. In a method with which abnormal combustion processes of the internal combustion engine can be reliably recognized and classified at all operating points, a stepwise system is used for regression calculation of the recognition variable, in which system at least one reference variable that corresponds to a measured reference variable of the sensor signal is calculated from the sensor signal.

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