PEMS testing

Portable Emissions Measurement System (PEMS) testing is a process of measuring a vehicle’s real-world emissions on the road using a highly accurate measurement device. When it comes to collecting emissions data, the California Air Resources Board (CARB) encourages on-road testing to understand how the vehicle performs in the real world. Driving on the road is considered “real-world driving” due to outdoor factors such as weather, road conditions, traffic, etc., which are difficult to simulate on a chassis dyno. The PEMS effectively helps us analyze vehicle emissions while incorporating these outdoor factors. Emissions commonly measured with the PEMS device include Carbon monoxide (CO), Non-methane hydrocarbon (NMHC), and Oxides of Nitrogen (NOx).

Con l'inasprirsi delle normative, i produttori devono migliorare i metodi di prova per garantire il rispetto degli standard stabiliti dalle autorità di regolamentazione. Il CARB sta già eseguendo test sui PEMS e i produttori dovrebbero farlo per garantire che i loro veicoli siano conformi nelle applicazioni reali.

WinterPark has invested in an AVL GAS PEMS iX 493 unit. This is the same device used at CARB’s test facilities. This unit complies with the requirements of the EPA (CFR 40-part 1065), the EU (582/2011 Annex II requirements for EU In-Service Conformity testing), and CARB. With this device we can help manufacturers from all over the world acquire on-road data for regulation use and to ensure they are meeting emissions standards.