Fault Diagnostics and Prognostics for Vehicle Springs and Stablizer Bar

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Published Nov 3, 2020
Xinyu Du Lichao Mai Hossein Sadjadi

Abstract

Vehicle springs and stabilizer bar are critical suspension components impacting vehicle riding and handling experience. Diagnostics and prognostics of springs and stabilizer bar can improve customer perceived quality, reduce repair cost and increase up-time for fleet vehicles. It’s even more important for autonomous vehicles, since there is no human driver to sense fault symptoms. Currently, there is no production solution to automatically diagnose and prognose spring and stabilizer bar failures, and most research work is suffered by various noise factors. In this work, a novel solution based on static ramp test is proposed to isolate and localize spring and stabilizer bar faults. With limited number of longitudinal and lateral acceleration measurements, the solution can quickly and effectively isolate faulty spring, disconnected stabilizer bar, loose bushing and loose end link. The validation results from a MY17 Bolt EV demonstrate the effectiveness and robustness of the proposed solution.

How to Cite

Du, X., Mai, L., & Sadjadi , H. (2020). Fault Diagnostics and Prognostics for Vehicle Springs and Stablizer Bar. Annual Conference of the PHM Society, 12(1), 10. https://doi.org/10.36001/phmconf.2020.v12i1.1129
Abstract 18 | PDF Downloads 29

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Keywords

spring, stabilizer bar, prognostics

Section
Technical Papers