HEAVY DUTY: Testing across global operations to Global Reach and Experience
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“As we scale up our emissions testing on our ammonia-to-power powerpack, Emissions Analytics was always available to provide timely, detailed, and accurate information. Our systems are novel and require much testing and refinement. We’ve been impressed with their diligence and commitment to excellence throughout every stage of the process.”
Amogy, Inc.
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‘Emissions Analytics carried out emissions testing on diesel generators coupled to our flywheel hybrid system. They took over the work at very short notice and showed great competence and professionalism in all stages of the project. Despite the novelty and peculiarities of our test requirements, their team showed great adaptability, attention to detail and provided excellent communication at all times.’
Punch Flybrid
Heavy-duty engines face the toughest real-world conditions
Long-haul gradients, stop-start logistics, temperature swings and sustained high-load operation all create emissions behaviours that no laboratory cycle can fully replicate. In-service emissions are shaped by driver behaviour, duty cycle variation, payload, engine ageing and environmental conditions.
With portable emissions measurement systems (PEMS), we capture second-by-second real-world performance to help manufacturers, operators and regulators understand how heavy-duty engines truly behave on the road.
It’s a clear view of emissions where it matters most.
Our heavy-duty emissions capabilities
In-Service Conformity (ISC): Comprehensive PEMS testing to support Euro VI and global ISC requirements, including cold, hot and high-altitude conditions.
High-load and transient operation: Capturing NOx, CO₂ and PN spikes during hill climbs, overtakes, motorway gradients and extreme temperature swings.
Long-haul duty cycle analysis: Testing across varied payloads and driving patterns to reflect real operational conditions.
Urban and municipal fleets: Understanding the impacts of low-speed operation, idling, stop-start driving and short-route service patterns.
Ageing and deterioration studies: Comparing emissions performance over engine lifetimes to highlight degradation trends.
Comparative benchmarking: Quantifying differences across engine families, calibrations, hardware upgrades or retrofit solutions.
What heavy-duty PEMS projects include
Full PEMS installation tailored to truck, bus or engine configuration
Load and route planning based on operational use cases
Real-world data capture across multiple conditions
Environmental, transient and thermal correlation
Deep-dive data analysis and compliance interpretation
Independent reporting that highlights clear, actionable insights
Testing across global operations
We understand that heavy-duty platforms must perform consistently across continents. Our PEMS programmes have covered:
European haulage routes
North and South American road networks
High-temperature operations in Australia
High-altitude environments, including the Andes and Alpine regions
Urban cycles for buses, refuse trucks and municipal fleets
Wherever your engines operate, we can capture representative real-world behaviour.
Why real-world PEMS is essential for heavy-duty fleets
Heavy-duty engines operate far beyond the boundaries of controlled test cycles. Real-world data helps you:
Meet In-Service Conformity (ISC) requirements
Verify calibration performance under dynamic, high-load conditions
Understand ageing impacts on NOx, PN and CO₂
Support warranty and durability cases
Benchmark against competitors and legacy platforms
Validate retrofit systems or software updates
Optimise SCR, EGR and thermal management strategies in real duty cycles
Real-world testing gives your team the evidence needed to refine, validate and future-proof your products.
Why choose Emissions Analytics for heavy-duty vehicle emissions testing?
Project management
Liaison with the end user to arrange the tests and ensure customer satisfaction is maintained
Mobility
Working globally via bases in the UK, Germany and USA
Flexibility
Working around operators’ working hours
Experience
Experience across various applications from small all-terrain vehicles to inland waterway vessels
Cost effectiveness
Removing the internal burden to free up skilled staff for core projects, through outsourcing
Who we work with
Heavy-duty OEMs and engine manufacturers
Tier 1 technology suppliers
Municipal and logistics fleets
Regulatory and compliance teams
Retrofit and aftermarket providers
Our data helps teams validate technologies, reduce compliance risk and optimise performance in the most demanding applications.
Types of Heavy-Duty vehicles we test
Our Portable Emissions Measurement Systems (PEMS) testing is applicable to a wide range of heavy-duty vehicles. We provide emissions analysis for:
Heavy-duty trucks (HGVs) – Long-haul and regional freight transport
Delivery vans and light commercial vehicles (LCVs) – Last-mile delivery and urban logistics
Refrigerated transport vehicles – Testing emissions impact of cooling units
Buses and coaches – City and intercity public transport emissions monitoring
Shuttle and airport transfer vehicles – Assessing emissions in high-traffic environments
Refuse collection trucks – Waste management and street cleaning fleets
Emergency response vehicles – Fire engines and ambulances
Military and defence vehicles – Tactical transport and armoured personnel carriers
We are also able to test non-road mobile machinery, more information is available here.
Comprehensive emissions measurement and analysis for regulatory compliance
We measure a full range of emissions, available both raw exhaust and post-aftertreatment:
- Fuel economy (Mpg) and fuel consumption (L/100km)
- Carbon monoxide (CO)
- Carbon dioxide (CO2)
- Nitric oxide (NO)
- Nitrogen dioxide (NO2)
- Oxides of nitrogen (NOx = NO + NO2)
- Nitrous oxide (N2O)
- Total hydrocarbons (THC)
- Particle number (PN, lower size cut-off 23 nm)
- Particle mass (PM)
- Ammonia (NH3)
- Formaldehyde (CH2O)
- Speciated volatile organic compounds (VOCs)
- Sulphur dioxide (SO2)
- Methane (CH4)
- Non-methane hydrocarbons (NMHC).
Upcoming conferences
Ready to plan your heavy-duty PEMS programme?
Speak with our engineering team to define the right duty cycles, test conditions and measurement package for your platform.