Experimental Study on the Emission and Particle Number of a Heavy-duty Gasoline Vehicle by the Heavy-duty Chassis-Dynamometer

Abstract

This paper uses the AVL company's emissions sampling and analysis equipment to take the vehicle emission test with a heavy-duty gasoline vehicle on one chassis dynamometer. And then have an analysis and compare on the PN and the polluted gas (CO, THC, NOx) during different start test cycles. And this study shows that the cold start condition has higher particulate number and more gaseous pollutants than hot start condition, the particulate number was concentrated in different drive conditions during different starting conditions, and it is close to the sudden acceleration.