Abstract
The actual road diesel emissions of heavy-duty vehicle is very high, which has been a concern around the world. In 2018, Chinese government promulgated the "China VI" regulations containing real-driving emission test requirements and limits, requiring vehicle manufacturers to effectively control vehicle emissions to meet the requirements of China VI. This article takes a heavy-duty tractor equipped with a "China VI" engine as the research object, and performs actual road emission tests after loading 10%, 25%, 50%, 75%, and 100% respectively. The results show that NOx emissions are higher at low loads and PN emissions are higher at high loads, and CO emissions are not sensitive to load changes.
Highlights
On July 3, 2018, the State Council issued the "Three-year Action Plan to Win the BlueSky Defense War", calling for the fight against pollution of diesel trucks, formulating action plans for the fight against pollution of diesel trucks, and coordinating the management of fuel, roads, and vehicles to ensure that diesel vehicle pollution is reduced
China VI regulations changed the requirements for real-driving emission boundaries in National V regulations
The test emission test equipment used OBS-ONE-G12 vehicle emission analysis system produced by HORIBA
Summary
On July 3, 2018, the State Council issued the "Three-year Action Plan to Win the Blue. This article tests the real-driving emissions of the PEMS cycle of a heavy-duty tractor in a country six platform under different loads. The development of the engine bench calibration During the process, the emissions and fuel consumption of WHTC were balanced and optimized, but under the actual road PEMS cycle conditions, there are still many high-risk conditions at the point of discharge. This requires us to pay attention to the rectification during the development of the National Sixth Project. Aracteristics of oil refining process in China, FCC gasoline occupies the leading position, accounting for about 70%~85%[1-2]
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