Patent · US Expired

Electronic ignition system for gasoline internal combustion engines

US4558675A · kind A · utility

0Cited by

8References

8Claims

0Family size

Assignee

Telefunken Electronic GmbH · DE

Inventors

Willy Minner · Schwaigern, DE
Heinz-Hermann Spies · Wolfsburg, DE
Christoph Domland · Wolfsburg, DE

Key dates

Filing date	Aug 8, 1984
Grant date	Dec 17, 1985
Priority date	—
Expiry date	Aug 8, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to an electronic ignition system for gasoline internal combustion engines wherein a Hall sensor is used to generate the reference signal corresponding to the position of the crankshaft or the pistons in the cylinders. The ignition point is electronically controlled in dependence upon the speed and the load. In accordance with the invention, control information in the form of an information voltage is generated at at least one capacitor by the charging and discharging procedure controlled by the reference signal. To determine the ignition point, this information voltage is either compared with a d.c. voltage which is alterable in dependence upon load or it itself is altered in dependence upon load and compared with an unaltered d.c. voltage.

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