与实验室测试显示的相比,PHEV在实际驾驶中排放的二氧化碳增加了近5x2, 破坏了它们的环境效益。
PHEVs emit nearly 5x more CO2 in real driving than lab tests show, undermining their environmental benefits.
欧洲联盟对2021年至2023年期间80万部车辆的研究显示,插件混合电动车(PHEVs)在实际驾驶中排放的CO2比实验室试验显示的高出近5倍。
Plug-in hybrid electric vehicles (PHEVs) emit nearly five times more CO2 in real-world driving than lab tests suggest, a European Union study of 800,000 vehicles from 2021 to 2023 found.
在此期间,实际世界排放量比实验室结果高出3.5至4.9倍,PHEV仅削减了19%的CO2,而汽油车则远远低于测试假设的75%的减排率。
Real-world emissions rose from 3.5 to 4.9 times higher than lab results over that period, with PHEVs only cutting CO2 by 19% compared to gasoline cars—far below the 75% reduction assumed in testing.
专家将这一差距归因于实际电力使用率低,平均只有27%,而假定为84%,这是由于电力动力不足和司机行为造成的。
Experts attribute the gap to low actual electric usage, averaging just 27% versus an assumed 84%, due to underpowered electric motors and driver behavior.
调查结果使人们对PHEV的环境效益感到关切,并突显了现行测试标准中的缺陷。
The findings raise concerns about the environmental benefits of PHEVs and highlight flaws in current testing standards.