Patent · US Expired

Method for controlling the no-load speed of an internal combustion engine

US5002027A · kind A · utility

1Cited by

7References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rudiger Jautelat · Tamm, DE
Rolf Kohler · Schwieberdingen, DE
Cornelius Peter · Ansbach, DE
Gunther Plapp · Echterdingen, DE
Martin Stilling · Stuttgart, DE

Key dates

Filing date	Sep 21, 1989
Grant date	Mar 26, 1991
Priority date	—
Expiry date	Sep 21, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02B1/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention is directed to a method for controlling the no-load speed of an internal combustion engine wherein the position of the throttle flap in the intake tube of the engine is varied as a function of the speed of the engine and of a position signal defining the position of the throttle flap. The variation of the throttle flap position takes place, however, only whenever the throttle flap has assumed a specific, predeterminable position and whenever the engine speed has remained virtually constant over a likewise predeterminable period of time. An embodiment in the form of a flow chart is described by means of which the method according to the invention can be realized.

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