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The Future of OBD: Enhanced On-Board Diagnostic System with Remote Access
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 29, 2022 by SAE International in United States
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Vehicle manufacturers and their suppliers are legally mandated to develop low-emission engine technologies. Type approval for road-vehicles or non-road mobile machines is only granted when the limits for carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matters (PM) are observed. In addition to complying with emission standards, road-vehicles must be equipped with a supervising system (OBD) that monitors emission-related components and detects and indicate divergences from admissible pollutant limits. As of today, emission control systems are required for non-road mobile machinery, but not their monitoring by an OBD system.
This paper starts with a short introduction to the classical OBD system. For more than three decades, OBD serves as an essential part of the environmental protection.
The use of electrical powertrains is increasing and the deployment of combustion engines is nearing its end, not only in passenger cars but also in heavy-duty commercial vehicles and mobile machinery. Although electrically powered vehicles do not need the monitoring of exhaust gas relevant components, the OBD system will not disappear. On the contrary, the OBD system is being expanded and given new tasks. Especially in autonomous road-vehicles and automated mobile machines, an enhanced on-board diagnostic system is indispensable to ensure availability, safety, and security.
Vehicles are connected to the cloud, meaning that there is a wireless connection of the vehicle on the road to a cloud-based system that acquires, analyses and stores data. From this perspective, the question arises as to whether we really still need the insecure, wired OBD Port.
This paper describes components and features of an enhanced on-board diagnostic system that monitors both the emission-related and safety-related functions of autonomous vehicles and automated machines. It comes with a radio data link that replaces the traditional wired OBD Port.
CitationSubke, P. and Mayer, J., "The Future of OBD: Enhanced On-Board Diagnostic System with Remote Access," SAE Technical Paper 2022-01-0114, 2022, https://doi.org/10.4271/2022-01-0114.
- Subke , P. Diagnostic Communication with Road-Vehicles and Non-Road Mobile Machinery SAE Book 978-0-7680-9367-4
- Subke , P. and Moshref , M. Right First Time: Cloud-Based Cyber-Physical System for Data Acquisition and Remote Diagnostics to Optimize the Service Quality SAE Technical Paper 2021-01-0158 2021 10.4271/2021-01-0158
- Subke , P. , Moshref , M. , and Erber , J. In-Vehicle Diagnostic System for Prognostics and OTA Updates of Automated / Autonomous Vehicles SAE Int. J.Advances & Curr. Prac. in Mobility 2 5 2963 2968 2020 10.4271/2020-01-1373 2020-01-1373
- Subke , P. Improvement of the Resilience of a Cyber-Physical Remote Diagnostic Communication System Against Cyber Attacks SAE Technical Paper 2019-01-0112 2019 10.4271/2019-01-0112
- Walter , R. and Walter , E. Data Acquisition from Light-Duty Vehicles Using OBD and CAN 10.4271/R-458
- Liyanage , M. 2018
- Jayakody , D. , Srinivasan , K. , and Sharma , V. 5G Enabled Secure Wireless Networks ISBN Springer-Verlag 2019 13-9783030035075
- Klinedinst , D. and King , C. 2016
- Rannow , H. and Schober , G.
- Markham , T. and Chernoguzov , A. A Balanced Approach for Securing the OBD-II Port SAE Int. J. Passeng. Cars - Electron. Electr. Syst. 10 2 2017 390 399 https://doi.org/10.4271/2017-01-1662
- Zhu , D. , Kumar , V. , Ravi , V. et al. Detection Method for Cyber Security Attack on Connected Vehicles SAE Technical Paper 2021-01-1249 2021 10.4271/2021-01-1249
- Jentz , R. , Lenzen , T. , and Meissner , H. Diagnostic Evaluation of Exhaust Gas Recirculation (EGR) System on Gasoline Electric Hybrid Vehicle SAE Technical Paper 2020-01-0902 2020 https://doi.org/10.4271/2020-01-0902
- Van Nieuwstadt , M. , Lehmen , A. , Ravi , V. et al. A Unique Application of Gasoline Particulate Filter Pressure Sensing Diagnostics SAE Int. J. Passeng. Cars - Mech. Syst. 14 2 2021 https://doi.org/10.4271/06-14-02-0007