Abstract. The article compares driving test data using the latest legislative proposals applicable to passenger cars. Several measurements were performed on the same test route in accordance with the RDE test guidelines, which requires a number of criteria to be met. These criteria include: the length of the measuring segments, their overall test time share, and the dynamic characteristics of the drive. A mobile device for reading the EOBD System information was used to record the engine and vehicle operating parameters during tests. This allowed for the monitoring of parameters such as: load value, engine speed and vehicle velocity. The obtained results were then analyzed for their compatibility with the RDE procedure requirements. Despite the same research route, the obtained results were not the same. The analysis also uses the two-dimensional operating time share characteristics expressed in vehicle velocity and acceleration co-ordinates. As a result it was possible to compare the dynamic properties, share of operating time and, consequently, to check the validity of conducted drive tests in terms of their practicability and emission values.
The main issues addressed by the article are dimensional analysis of solid particles emitted by passenger cars operating in real driving conditions. It is a part of the current research trend focused on searching pro-ecological solutions related to determining the environmental impact of road transport. Special emphasis was placed on the comparison of the ecological parameters of passenger cars fuelled with petrol (conventional and hybrid) and diesel. All tests were carried out in accordance with the applicable requirements of the European Union. This approach will expand the knowledge base on the ecological properties of vehicles moving in urban, rural area and on highways.
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