Full‑scale testing of complete heavy‑duty electric vehicles (CVHD)

CVHD – Complete Vehicle Heavy Duty – is SEEL’s offering for advanced full‑scale testing of heavy‑duty electric vehicles. In one of Sweden’s most modern vehicle laboratories, we provide research‑based expertise and comprehensive test solutions that help you develop robust, safe and competitive vehicles for real‑world operation.

Secure the development of heavy‑duty electric vehicles with reliable full‑scale testing

The development of heavy‑duty electric vehicles is driven by high demands on performance, safety and durability – all while technology is evolving rapidly. New drivetrains, high‑voltage systems and battery configurations must be verified, often under time pressure and with limited opportunities for real‑world testing. Many actors face questions such as: How does the vehicle behave under long‑term load? How are function and range affected by cold, heat or varying loads? How do we ensure that our results are comparable and robust?

At SEEL, we work with these challenges every day. We know how important it is to test early, get clear answers and have a partner who takes responsibility for methodology, execution and analysis. That’s why we offer advanced full‑scale testing of complete heavy‑duty electric vehicles – in controlled and repeatable environments that provide decision‑ready data you can rely on.

Vehicle testing for optimal function and quality

In controlled and repeatable test environments, we expose vehicles to realistic conditions to verify durability, performance and electromobility. With us, you can test vehicles early in the development process to identify deviations, reduce risks and avoid costly redesigns.

We test a wide range of vehicle types – from maritime vehicles and aircraft to mining and construction machinery.

We offer

Within our CVHD offering, our full‑scale tests include, among other areas:

Complete vehicle testing: Full‑scale testing of heavy‑duty vehicles under controlled and repeatable conditions, including dynamic driving tests, simulated road profiles, rolling‑resistance and power measurements, acceleration tests, and evaluation of motor and drivetrain control.
Durability and reliability testing: Verification that vehicles withstand long‑term stress through extended cycling and endurance testing.
Environmental and climate testing: Ensures functionality in extreme conditions, from deep cold to high heat, including temperature cycling as well as cold‑start and charging capability.
Electromobility and high‑voltage system testing: Covers verification of complete HV systems, charging and fast charging, energy efficiency, range, and thermal testing of batteries and drivetrains.
Tailored test programs and engineering support: Customised setups for OEMs, suppliers and research projects, including test planning, method development and data acquisition.

Why choose SEEL

SEEL – Swedish Electric Transport Laboratory – is Sweden’s national test centre for research and development in electromobility. Here, advanced test infrastructure meets cutting‑edge expertise to accelerate the development of next‑generation electrified transport solutions – and strengthen a sustainable, competitive battery value chain in Sweden and Europe.

As a SEEL customer, you gain access not only to our test infrastructure but also to the full CVHD environment and an entire ecosystem of complementary expertise and testing capabilities. Maximise the value of your vehicle testing by combining it with specialist competencies within SEEL and RISE, such as solar simulations, EMC testing and advanced environmental testing.

As an independent actor, we deliver objective and reliable results in modern laboratories where every test is performed in a controlled and repeatable environment. This gives you secure, comparable and decision‑supporting data that drives development forward.

Our strategic location on Hisingen in Gothenburg also provides fast and convenient access to the region’s strong vehicle and industrial cluster. This means shorter lead times, proximity to the right expertise and a partner who can support you throughout the entire development chain – from concept to verified solution.