公开(公告)号：US10208683B2

公开(公告)日：2019-02-19

申请号：US14639978

申请日：2015-03-05

申请人： Caterpillar Motoren GmbH & Co. KG

发明人： Eike Joachim Sixel ,  Hannes Marscheider ,  Daniel Wester ,  Arvind Sivasubramanian ,  Travis Barnes ,  Chris Gallmeyer ,  Jedediah A. Frey ,  Andrew J. Neaville ,  Robert Calderwood

IPC分类号： F02D19/02 ,  F02D41/22 ,  F02D41/24 ,  F02D19/06 ,  F02D41/00 ,  F02D37/02 ,  F02D41/20

摘要： 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.