Authors: Chyuan-Yow Tseng, Chiu-Feng Lin
Addresses: Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung, 91201 Taiwan. ' Department of Vehicle Engineering, National Pingtung University of Science and Technology, Pingtung, 91201 Taiwan
Abstract: This paper proposes a method for the diagnosis of faults in switching-type solenoid valves widely used in automotives, specifically the case in which the valve plunger is sticking during operations. This kind of fault is frequently encountered in electro-hydraulic systems of in-use vehicles and is difficult to detect because the solenoid valves are generally inside the system. A Kalman filter-based fault detection algorithm is derived. Experimental results showed that, using only the measured voltage across and current through the coil of the solenoid, the designed algorithm predicted the plunger motion and diagnosed the stuck fault accurately.
Keywords: switching-type solenoids; solenoid valves; automotives; Kalman filters; fault diagnosis.
International Journal of Heavy Vehicle Systems, 2007 Vol.14 No.1, pp.20 - 35
Published online: 22 Dec 2006 *Full-text access for editors Access for subscribers Purchase this article Comment on this article