Arrangements for electronically determining and adjusting the ignition time of an internal combustion engine

USRE31392E · kind E · reissue

Assignee

• Robert Bosch GmbH · DE

Inventors

• Gunter Schirmer · Bietigheim-Bissingen, DE
• Edwin Fauser · Ditzingen, DE
• Leo Steinke · Waiblingen, DE

Key dates

• Filing date: Aug 10, 1978
• Grant date: Sep 27, 1983
• Expiry date: Aug 10, 1998

Classification

• Technology area (CPC —): General

Abstract

The signals of one or more engine operating parameters, such as r.p.m. and throttle valve vacuum are altered by function generators to correspond to the desired relationship between ignition timing and the parameters that are taken into account. These altered signals are added together and conducted to a comparator that receives as a second input a time and r.p.m. dependent signal from a saw tooth generator, the output of the comparator being fed to the ignition device. .Iadd.