System and method for measuring valve lift and for detecting a fault in a valve actuator based on the valve lift
US9506381B2 · kind B2 · utility
2Cited by
1References
28Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 24, 2014 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system according to the principles of the present disclosure includes a valve lift determination module and a fault detection module. The valve lift determination module determines valve lift based on at least one of a first period when a valve is open and N differences between a first value of a valve lift signal generated by a valve lift sensor when the valve is closed and a second value of the valve lift signal when the valve is open, wherein N is an integer greater than one. The fault detection module detects a fault in a valve actuator based on the valve lift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.