Patent · US Expired

Method of adjusting the composition of the operating mixture for an internal combustion engine

US5546918A · kind A · utility

9Cited by

7References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Mayer · Weißenhorn, DE
Ernst Wild · Oberriexingen, DE
Peter Kaltenbrunn · Bietigheim-Bissingen, DE

Key dates

Filing date	Jun 7, 1995
Grant date	Aug 20, 1996
Priority date	—
Expiry date	Jun 7, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/2477
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a learning control method for adjusting the composition of an operating mixture for an internal combustion engine. The method includes the steps of: detecting the actual value of the composition; forming a control variable as a function of the instantaneous deviation of the actual value from the desired value; logically coupling the control variable to a base value of an adjusting parameter of the composition and driving an actuator on the basis of the logically coupled value; and, learning of an additional intervention in the control loop from the performance of the control loop wherein the learning takes place at a speed which is at least dependent upon temperature.

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