Patent · US Expired

Method and device for monitoring an internal combustion engine

US6189524A · kind A · utility

3Cited by

3References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hong Zhang · Tegernheim, DE
Erwin Achleitner · Obertraubling, DE

Key dates

Filing date	Apr 7, 2000
Grant date	Feb 20, 2001
Priority date	—
Expiry date	Apr 7, 2020

Classification

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

Abstract

An estimated value of the amount of fuel which is metered into a cylinder per working cycle is calculated. An estimated value of the indicated torque of the internal combustion engine is calculated as a function of the estimated value of the amount of fuel. An emergency operating mode of the internal combustion engine is actuated if the estimated value and a setpoint value of the indicated torque fulfill a predefined condition.

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