Manufacturing

Leamington Spa's Drive System Design expands test facilities

Published by
Nicky Godding

Leamington Spa-based electrified powertrain engineering consultancy, Drive System Design (DSD), is helping commercial vehicle (CV) manufacturers and their suppliers meet the challenges of powertrain electrification. The company’s recent expansion of its test facilities, adding two further test cells for high-performance hybrid axles and e-machines, reflects a growing demand for outsourced test capacity suitable for electrified CV powertrains.

David Kelly, Director, Drive System Design, said: “As global pressure grows to reduce transport’s contribution to climate change, commercial vehicle manufacturers are turning to electrification in the same way as passenger car manufacturers.

“This has resulted in a significant increase in worldwide demand, not only for design and development work but also for outsourced validation testing. These additional facilities have extended our ability to provide this for a wide range of hybrid and electric powertrains, and have been configured with sufficient torque capacity to accommodate most commercial vehicles below class 8.”

DSD’s testing activities extend beyond routine durability and design validation to encompass many specialised areas, such as transmission control system and shift comfort development. For some clients in the CV sector, electric propulsion requires new skills beyond their established expertise, where DSD’s input is proving invaluable. Even for those more experienced in electric propulsion, the sheer volume of testing required to bring new electrified powertrains to market is causing bottlenecks in capacity that can only be resolved through outsourcing to trusted partners.

“The duty cycles appropriate for electrified CV powertrains are very different to those for passenger cars, so we are providing engineering support to customers moving into this sector for the first time,” David added.

“On the other hand, even customers with long experience in CVs are being surprised by the speed with which the market is changing and are struggling to accommodate the upsurge in test requirements using solely in-house facilities.”

DSD is continually developing its automation capabilities within the new facility to help speed up testing. This has been particularly effective in the case of hot and cold environment testing, which is proving to be one of the great challenges in electrified systems. According to David, tests that previously took six weeks to complete can be finished in half that time with suitably configured automatic control.

Alongside physical testing, DSD is also at the forefront of powertrain and driveline simulation. The growing diversity of propulsion systems and the increasing complexity of their control mean traditional validation techniques are often too slow, too inefficient and too expensive to meet new vehicle program targets, if used in isolation.

David added: “Simulation and physical testing are complementary and highly effective when used together.

“For example, traditional test point based cycles often don’t accurately represent the real world, but using fast, real-time Rig-In-The-Loop (RIL) simulation subjects the system to much more realistic testing. It also allows the interaction between hardware and software to be more thoroughly validated early in the program, resulting in a more mature solution before investing in prototype vehicles.”

Nicky Godding

Nicky Godding is editor of The Business Magazine. Before her journalism career, she worked mainly in public relations moving into writing when she was invited to launch Retail Watch, a publication covering retail and real estate across Europe. After some years of constant travelling, she tucked away her passport and concentrated on business writing, co-founding a successful regional business magazine. She has interviewed some of the UK’s most successful entrepreneurs who have built multi-million-pound businesses and reported on many science and technology firsts. She reports on the region’s thriving business economy from start-ups, family businesses and multi-million-pound corporations, to the professionals that support their growth and the institutions that educate the next generation of business leaders.

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