Method of and device for controlling an internal combustion engine

US5193516A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Zimmermann Jurgen · Schwieberdingen, DE
• Bernard Bauer · Haßfurt, DE

Key dates

• Filing date: Jun 24, 1991
• Grant date: Mar 16, 1993
• Expiry date: Jun 24, 2011

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02P7/035
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

To control the ignition of an internal combustion engine the ignition of a spark plug is determined by means of one ignition coil assigned to each spark plug, of a first counter which, on the occurrence of an angle-fixed reference mark, is counted upwards or downwards starting from a predeterminable value by means of an angle-dependent timing signal for triggering the ignition of a spark plug in the internal combustion engine, the spark plug to be fired in each case being determined via a cylinder recognition system. The start of charging of all the ignition coils of the internal combustion engine is initiated by means of a further counting device, the count of which changes the conditioned-by-the-angle-dependent timing signal, and which in each case is assigned a starting value which corresponds to the gap up to the start of charging of the next coil. Thus while the first counting device triggers the ignition process, the second counting device determines when the charging process of an ignition coil begins.