Completed Clean Energy Engineering

Low Cost Auxillary Power Unit (LowCAP)

In plain English

AI plain-English summary

Tata Motors, Ashwoods Automotive, and the University of Bath are building a low-cost, lightweight auxiliary power unit for electric vehicles that can be mass-produced globally. The problem is straightforward: electric vehicles need a backup generator to extend their range, but existing auxiliary power units are too expensive and heavy for mass-market cars. This project tackles that gap by combining Tata’s low-cost internal combustion engine with Ashwoods’ low-cost electric motor technology, developed in earlier government-funded projects. The team will design, model, and test a fully integrated unit built from sustainable materials. If successful, the LowCAP unit could become a standard component in Tata Motors’ own vehicles and be sold to other global carmakers. That would lower the cost of range-extended electric vehicles, making them more accessible to ordinary drivers. The intellectual property and manufacturing would remain in the UK, tying British engineering into one of the cheapest engines on the market. The project is commercially driven from day one, with no fundamental science component—it is a direct push to create a product for the global automotive supply chain.

View original technical description
The project will design, model, develop and evaluate an industry first Low Cost Auxillary Power Unit (LowCAP) for Range Extended Electric Vehicles (REEVs) Tata Motors European Technical Centre (TMETC) plc, Ashwoods Automotive Ltd (Ashwoods), and University of Bath (Bath) combine to offer the set of skills to develop, evaluate and exploit the outputs in global mass market volumes. The project will result in UK intellectual property being technically and commercially tied into one of the lowest cost modern internal combustion engines (ICE) on the market which is built by Tata Motors and is anticipated to be exploited globally within the Tata Motors Group and beyond to the global OEM marketplace. The project will be focused from day one towards the low cost REEV market. The motors and controllers will be an exploitation of the low cost electric motor technology developed by Ashwoods through previous TSB funded projects involving Ashwoods and Bath. The project will see futher innovations low cost motor and inverter IP that will enable the development of a highly efficient, low cost, fully integrated, lightweight APU built from sustainable materials. Successful outputs will be sold and distributed by Tata Motors Group within their own vehicles and as a standard LowCAP unit to global OEMs.

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Original classification

Collaborative R&D

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