Real Time Vehicle Emission Testing System Research and Development

A kind of realtime vehicle emission testing system based on the OEM2100 was developed to test the emission of lightduty vehicle.Road emission factors and emission inventory were calculated for verifying whether the vehicle reaches the standard. Through analyzing the proportion of exhaust time and emission for each operation mode and the average emission rate,the contribution rate of each operation mode to the vehicle emission was analyzed providing a feasible method of exacttesting single vehicle emission in the traffic flow.