Technical Paper
The Future of OBD: Enhanced On-Board Diagnostic System with Remote Access
2022-03-29
2022-01-0114
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.