August 31, 2022
Cosworth and Ariel Motor Company, together with other key partners, have been developed an ultra high-performance electric road car known as HIPERCAR (High Performance Carbon Reduction). Following the completion of the APC (Advanced Propulsion Centre) government-funded programme HIPERCAR 2, the companies will be debuting the prototype vehicle at the Cenex-LCV2022 event in UTAC Millbrook from 7th – 8th of September.
Using Delta Cosworth’s high-performance battery technology, Ariel’s requirements were that the car should not only have world beating road performance but also track capability. Combined road and track usability is a challenging feat to overcome in terms of power and energy. Both companies conducted simulations to ensure the stresses imposed on a battery operating in an aggressive and strained track environment would be managed effectively. The heat energy generated on track can increase by up to 10 times that of even a fast road use case, the system is able to cope with these demands.
Another demanding requirement stipulated by Ariel was that the battery needed to supply enough power to the motors to enable the HIPERCAR to beat lap records set by ICE cars. Ariel’s first EV is looking to take on the world’s fastest production cars from industry leading OEMs to demonstrate the capabilities of an EV.
With these challenging targets, Delta Cosworth has had to push the envelope of battery design. The programme used Delta Cosworth’s patented CSMs (Cylindrical Scalable Module) that enables the brand to produce battery packs in any size and shape, with the ability to utilise the two most readily available cell formats of 18650 and 21700. With this system, Delta Cosworth can keep up with cell chemistry evolution without the need of re-designing their battery packs when new forms of chemistry within the same form factor are introduced.
The HIPERCAR is still undergoing testing and development with power figures of around 1200hp and 150 miles of range. This can be extended with the fitting of Cosworth’s Catalytic Generator (Cat-Gen), a microturbine range extender used to charge the battery on the move. The Cat-Gen is fuel agonistic, meaning it can run a variety of different fuels enabling the use of sustainable or zero-emission fuels. Currently the Cat Gen is running on petroleum with the system having near zero emissions. Current development of the system to run on Hydrogen will lead to a full zero-emission device.
Simon Dowson, Managing Director, Delta Cosworth: “Developing battery technology for the HIPERCAR programme has provided the team a hard challenge. Not only have we had to develop ultra-lightweight structures to manufacture the battery pack, but also maximise the cells performance as much as possible. We have also built upon our already existing vehicle integration capabilities, by collaborating with the Ariel engineering team to ensure our battery pack fits into the tightest dimensions, while keeping the mass as low as possible to keep the vehicle light and agile. The car has performed as expected in testing and we are excited to see how much performance we can extract from the car with further testing.”
Simon Saunders, Director, Ariel Motor Company: “With HIPERCAR we have pushed Cosworth to the extremes of current technology and capabilities. We do have the most difficult requirements, demanding maximum power, lightest weight and ultra reliability in the smallest package possible. On top of this we required a track capability for the car which meant Cosworth had to come up with new solutions in battery pack design. The rigorous test programme to date has demonstrated that our requirements are being met and we look forward to continuing into production with Cosworth as a partner.”
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