Laboratory & on-road emission testing of in-use passenger vehicles
The International Centre for Automotive Technology (ICAT) was contracted by the International
Council on Clean Transportation (ICCT) to conduct in-use testing of three light-duty diesel and petrol
vehicles, for correlation of Laboratory v/s PEMS.
Three vehicles were procured for this project.
• Hyundai Elite I20 Petrol (Asta Version)
• Hyundai Elite I20 Diesel (Sportz Version)
• Mahindra & Mahindra XUV 500 W6 with Start-Stop feature
All the tests were performed on above three vehicles as per project plan i.e. Chassis Dynamometer
tests and On Road test using PEMS. The test results gave insights on the current emissions levels of
three, in-use, popular vehicles sold in Indian Market. Also the data showed the gap between
Laboratory v/s On Road Emission levels and provide inputs on potential improvements to vehicle
technologies and regulations to improve emissions on the road. File
*There's is significant increase of CO emission from the petrol car.
*There's is significant increase in NOX emission from the diesel cars when tested in the real world conditions.
*Fuel efficiency too dropped 20-25% from the lab conditions.
*Tested cars were single owned, 3 year old cars and done around 15K KMs.
*Always wonder why the testing bodies be it emission or crash tests, are least interested in most selling brand or most sold cars