Patent · US Expired

Electronic clutch management system for motor vehicles with internal combustion engines

US5449331A · kind A · utility

1Cited by

6References

12Claims

0Family size

Assignee

LUK Lamellen Und Kupplungsbau · US

Inventors

Boguslaw Maciejewski · Werdohl, DE
Jorg Holwe · Hemer, DE
Josephus H. G. Delvigne · Werdohl, DE

Key dates

Filing date	Jul 26, 1993
Grant date	Sep 12, 1995
Priority date	—
Expiry date	Jul 26, 2013

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S477/906
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An electronic clutch management system for motor vehicles with engines having butterfly valves. An actuator under the control of a micro-controller activates a clutch between the engine and a transmission as a function of an ECM sensor which senses the position of the butterfly valve. If the micro-controller breaks down or is disturbed in its function, the micro-controller control is switched off, and control of the actuator element is switched over from the micro-controller to a comparator which is driven directly by the ECM sensor and controls the actuator element to activate the clutch, i.e., into its disengaged or engaged position, in a sense opposite to the position of the butterfly valve.

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