Design FMEA of hydraulic power-steering system of light commercial vehicles

Abstract

In the first part of paper, next to the description method of Failure Modes and Effects Analysis - FMEA, the history of the development and application of methods with special emphasis on the use of FMEA in the automotive industry is given. Furthermore, the definition and methodological connection of different variants of FMEA method used in the product development phase are presented. The procedure of implementation of the project FMEA method is explained in detail. The determination of the critical elements of a hydraulic power steering of light commercial vehicles in terms of reliability and functional safety is performed by applying design FMEA method. Taking preventive measures to reduce their criticality is the optimal way to increase the reliability and dependability, and by doing that and the quality of the entire system.