This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Providing Embedded, In-situ Oil Quality Monitoring for Improved Maintenance and On-Board Diagnostics in Trucking and Automotive Applications

Journal Article
2008-01-2614
ISSN: 1946-391X, e-ISSN: 1946-3928
Published October 07, 2008 by SAE International in United States
Providing Embedded, In-situ Oil Quality Monitoring for Improved Maintenance and On-Board Diagnostics in Trucking and Automotive Applications
Citation: Mackos, N., Baybutt, M., Palmer, C., and Tario, J., "Providing Embedded, In-situ Oil Quality Monitoring for Improved Maintenance and On-Board Diagnostics in Trucking and Automotive Applications," SAE Int. J. Commer. Veh. 1(1):260-267, 2009, https://doi.org/10.4271/2008-01-2614.
Language: English

Abstract:

This paper presents the development of a fluid quality sensor to provide a real-time, on-board oil quality assessment capability for commercial, military, and off-highway vehicle applications. The sensor provides for improved vehicle health state awareness and enables a condition-based approach to lubricant maintenance. The technology is based on a broadband approach to electrochemical impedance spectroscopy (EIS) and is applicable to all high impedance fluids. The EIS results are fused with the measurements from a capacitive relative humidity sensing element and are normalized with respect to temperature as measured by an embedded thermistor. The authors' experiences in developing, packaging, and testing this technology are chronicled.