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 mel axolotl 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 radio birdman tshirt loads, and CO emissions are not sensitive to load changes.