Electrical monitoring of gaseous fuel admission valves

US10208683B2 · kind B2 · utility

Assignee

• Caterpillar Motoren GmbH & Co. KG · DE

Inventors

• Eike Joachim Sixel · Kiel, DE
• Hannes Marscheider · Kiel, DE
• Daniel Wester · Felde, DE
• Arvind Sivasubramanian · Peoria, US
• Travis E. Barnes · Peoria, US
• Chris Gallmeyer · Peoria, US
• Jedediah A. Frey · Muskegon, US
• Andrew Neaville · Pryortown, US
• Robert Charles Calderwood · Peoria, US

Key dates

• Filing date: Mar 5, 2015
• Grant date: Feb 19, 2019
• Expiry date: Mar 5, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method of evaluating operability of a gaseous fuel admission valve of an internal combustion engine is disclosed. The method includes operating the internal combustion engine on gaseous fuel by repeatedly actuating the gaseous fuel admission valve. The method further includes measuring a sequence of temporal developments of an electrical operation parameter respectively associated with an actuation of the gaseous fuel admission valve. The sequence includes a first temporal development to be evaluated and a plurality of temporal developments preceding the first temporal development. The method also includes evaluating operability of the gaseous fuel admission valve based on the first temporal development of the measured sequence and at least one of the plurality of preceding temporal developments of the measured sequence.