Euro 7 proposal assessment of a Euro VI parallel hybrid electric bus
2024
Fonseca González, Natalia Elizabeth | Suárez Bertoa, Ricardo | Giechaskiel, Barouch | Melas, Anastasios | Gioria, Roberto | Forloni, Fabrizio | Selleri, Tommaso | Perujo, Adolfo
In 2022, the European Commission introduced the Euro 7 regulation proposal for motor vehicle type-approval, aiming to elevate environmental protection standards. This study aimed to evaluate a Euro VI-C Diesel parallel hybrid city bus within the framework of this proposal. Utilizing the World-Harmonized heavy-duty Vehicle Cycle (WHVC) across temperatures ranging from - 7 degrees C to 35 degrees C, the research sought to ascertain the extent to which Euro VI heavy-duty vehicles deviate from the proposed limits. The results showed that the new limits for NOx would be the most challenging, even for hot start conditions for the vehicle studied. The emission factor for particle number larger than 10 nm (SPN 10 ) is on average more than two times the proposed limit for hot start conditions. Other new pollutant emissions included in the Euro 7 proposal were much lower than the proposed limits, except in the case of N 2 O emissions.
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