D7.3 Results of the PHMS verification

Executive Summary

This document describes the verification of the prognostic health monitoring system (PHMS) developed in the HEMIS project. This system is able provide in-service monitoring of the condition of the powertrain of vehicles based on electric traction motors, and allows the application of condition-based maintenance policies. For this purpose, prognostic algorithms have been implemented, which can estimate the degradation level and the Remaining Useful Life (RUL) of the most critical components of the electric powertrain based on the values of a range of physical variables acquired by the PHMS sensors or read from the vehicle’s networks.

Section 1 presents a summary of the PHMS and the test-bench developed for its verification.

Section 2 describes the procedure and results obtained in the verification of the prognostic algorithms.

During the verification process, the algorithms were first tuned; i.e. the value of some parameters were set based on experimental tests in order to provide better estimation of the degradation level.

Section 3 presents the verification of the PHMS in the test-bench. Some of the algorithms previously verified, ported to C code and deployed into an embedded system, were validated in the test-bench. The monitoring of the exposure to electromagnetic fields was also verified in this phase of testing.

Section 4 presents the estimation of the PHMS failure rate based on its components, as well as the estimated increase in the vehicle’s reliability and availability thanks to the integration of the monitoring system.

Finally, section 5 presents the conclusions derived from these results.



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Project acronym:

Project name:
 Electrical powertrain Health Monitoring for Increased Safety of FEVs

Project reference:

Start date: 01/06/2012
End date: 28/02/2015

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