Evaluation of the effectiveness of on-board diagnostic systems in controlling exhaust gas emissions from motor vehicles
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UWM Olsztyn
Sławomir Wierzbicki   

UWM Olsztyn
Submission date: 2019-07-05
Final revision date: 2019-11-25
Acceptance date: 2019-11-26
Online publication date: 2019-11-28
Publication date: 2019-11-28
Diagnostyka 2019;20(4):75–79
Toxic exhaust gas emissions from internal combustion engines pose the key barrier to vehicle development. Direct measurements of emission levels and toxic compounds present in exhaust gas pose a technical challenge, which is why vehicle emissions are determined by monitoring the parameters of various systems and components. On-board diagnostic systems support engine monitoring in real time. Most on-board diagnostic systems are standardized, therefore their functions can be modified relatively easily. This paper analyzes the functions of the existing on-board diagnostic systems and proposes solutions that prevent unauthorized tampering with vehicle emission systems.
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