Lightweighting BEV Technology Market Ready 2022, GLM Claims

A Japanese company has claimed a breakthrough in BEV technology that could see the start of radical lightweighting to the vehicles.

Electric cars tend to be much heavier than their like-for-like ICE equivalents and that weight limits range and, worse, increases the vehicles’ air pollution by emitting comparatively more micro-plastics from both tire and brake pad wear. Now Kyoto’s BEV developer, GLM, has announced the next phase in its development of a “next-generation SiC (silicon carbide) inverter-compatible 800-volt system” equipped with a ROHM SiC power module, aiming for mass production in the next 24 months.

It claims this product, incorporating SiC for a power element, offers significant advantages over IGBT (insulated-gate bipolar transistor) semiconductor switching technologies especially combined with its new 800-volt architecture. The package is a 3-in-1 package that integrates two inverters and a PDU (power distribution unit). It claims to make the new inverter able to achieve further miniaturization, lighter weight and higher output compared to conventional products.

Weight is further reduced by supporting the 800-volt system, while also reducing recharge time when charging a large-capacity vehicle battery. Moving forward, GLM hopes to achieve further growth of platform business through the deployment of new vehicle models and the supply of the EV system. This project will aim to start mass production in the spring of 2022, collaborating with global motor and battery manufacturers.

— Paul Myles is a seasoned automotive journalist based in London. Follow him on Twitter @Paulmyles_


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