Unique lightweight chassis structure for new EV project

Written by: Tom Austin-Morgan | Published:

KW Special Projects (KWSP) has been named as the official engineering partner for Swedish electric car company Uniti’s new affordable electric vehicle (EV) programme, Uniti One. The agreement will see KWSP’s carbon composite vehicle platform used for the vehicle build, chosen for its lightweighting, thermal management, and structural advantages.

This carbon composite chassis vehicle platform, called ToPCat, can be developed for a fraction of the cost of traditional methods. It offers an alternative to more conventional carbon fibre reinforced polymer (CFRP) thermosets, traditionally seen in motorsport programmes. However, while CFRP can be expensive to process, labour intensive and not easily recyclable, ToPCat is fully recyclable and is claimed to shorten engineering cycle times by 83%. Independent tests have also demonstrated financial savings in both tooling costs and unit costs when ToPCat has been used as an alternative to other methods.

Built through modular construction utilising a repeatable manufacturing process, ToPCat utilises thermoplastic materials and innovative manufacturing processes to meet the need for reduced vehicle mass and increased modularity of manufacture, driven by a rapid rise in adoption of new energy vehicles (NEVs).

Kieron Salter, managing director at KWSP, commented: “Uniti One is a really exciting project which will demonstrate the lightweight and structural advantages of ToPCat when compared with alternative methods of chassis design and manufacture. Made possible by co-funding from the UK’s innovation agency, Innovate UK, ToPCat was key to attracting Uniti to the UK, where the company hopes to take advantage of Britain’s expertise in materials development and lightweighting.”


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