Roller bench pollution tests
Measuring pollutant emissions and Euro 6 compliance
Why test on a chassis dynamometer?
- Ensure compliance with Euro 6 and Euro 7 standards and other international regulations.
- Carry out accurate measurements of pollutant emissions (CO, CO₂, NOx, HC, CH₄, fine particles).
- Simulate regulatory driving cycles (WLTP, NEDC, American and Japanese cycles).
- Optimise post-treatment strategies (EGR, DPFS, SCR, LNT).
- Identify potential drifts linked to ageing or operating conditions.
- Test thermal, hybrid and electric vehicles under controlled conditions.
- Optimise the energy consumption and range of electric vehicles
Our test bench services
We carry out tests in accordance with the main approval procedures:
- WLTP (Worldwide Harmonized Light Vehicles Test Procedure) - European reference cycle.
- NEDC (New European Driving Cycle) - applicable to certain series.
- FTP-75, US06 - North American cycles.
- Other specific cycles on request (Artemis, JC08, etc.).
Which vehicles are affected by these measures?
We offer comprehensive solutions for assessing vehicle emissions and performance:
- Thermal vehicles (petrol, diesel, natural gas, other fuels).
- Hybrid (HEV) and plug-in hybrid (PHEV) vehicles.
- Light vehicles (M1, N1) and commercial vehicles (N2 under exemption).
Pollutant emissions: what are we measuring?
- Gases: CO, CO2, NO, NO2, NOx, HC, CH4, NH3.
- Particles: mass (PM), number (PN), size (ultrafine).
- Other parameters: O2, H2O, gas temperature, exhaust back pressure.
Test methodology
Preparing and conducting tests
- Vehicle conditioning according to protocol (maceration - temperature, fuel, tyre pressure).
- Automated or manual driving with robotic control.
- Guaranteed repeatability with strictly controlled conditions.
- Possibility of combining with RDE / PEMS or climatic tests for full validation.
Analysis and interpretation of results
- Processing of raw data and calculation of emission factors.
- Verification of compliance with regulatory thresholds (Euro 6d-TEMP, Euro 7 standards, etc.)
- Recommendations for engine calibration or post-treatment if required.
Talk to our experts in roller bench pollution testing
Technical resources of the Emitech Group
- Roller benches 2x2 and 4x4 air-conditioned (-30°C / +50°C).
- Gas analysers AVL AMA, FTIR for specific HC, NH3, CH4, etc.
- Fine particle counters (AVL APC, Micro Soot Sensor).
- Altimetric and hygrometric simulation.
- Data recording and processing via AVL Concerto, Etas INCA.
Expertise and technical support
Our technical teams are with you every step of the way:
- Vehicle preparation and configuration.
- Test plan compliant with standards or adapted to your specific needs.
- Real-time monitoring and data analysis.
- Full report with interpretation of results and possible areas for improvement.
Integrating chassis dynamometer tests into product development with the Emitech Group
Test bench testing helps to optimise vehicle design and ensure regulatory compliance. Our experts can help you with :
- Analysing standards requirements and adapting test protocols.
- Test implementation with customised configurations.
- Interpretation of results and optimisation of energy and environmental performance.
Needs
Discover a selection of additional resources that explore topics related to this page including regulatory contexts, technical articles, and specific areas of expertise. These materials provide further insight to help you better understand the key challenges and available solutions.
Contact us for a quote
Need to validate your vehicles' pollutant emissions? Contact our teams to organise your pollution tests on a chassis dynamometer in our laboratories
Request a personalised quote
