Method and arrangement for controlling the idle of an internal combustion engine

US5771859A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Walter Schlagmueller · Schwieberdingen, DE
• Thomas Wiesa · Leinfelden, DE
• Rolf Litzinger · Hechingen, DE
• Juergen Rottler · Karlsruhe, DE
• Ralph Schimitzek
• Peter Jauernig · Tiefenbronn, DE

Key dates

• Filing date: Oct 18, 1996
• Grant date: Jun 30, 1998
• Expiry date: Oct 18, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M25/08
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention is directed to a method for controlling the idle of an internal combustion engine having an intake channel for conducting air to the engine. The method utilizes sensors for generating signals characterizing the operating state of the engine and for supplying the signals to a control apparatus. A tank-venting valve is provided through which air can be conducted into the intake channel when the tank-venting valve is open. Control quantities are computed in the control apparatus in dependence upon the signals for at least the following: the tank-venting valve, an idle adjuster device, a fuel metering device and an ignition device. The air supplied to the engine is controlled with the aid of the tank-venting valve. The invention is also directed to an arrangement for carrying out the method.