E-Mobility Engineering 017 l ECE Doosan electric excavators dossier l In Conversation: Matt Faulks l Battery testing focus l Battery Show North America 2022 report l Ariel Hipercar digest l Cathode materials insight l Thermal management focus

Three-wheeler given newdesign Polymers confer safety and comfort W hite Motorcycle Concepts (WMC) has started production of a new design of its electric-hybrid three- wheel scooter (writes Nick Flaherty). The WMC300FR uses a patented Venturi duct technology added to a Yamaha Tricity 300 platform with a 292 cc single-cylinder four-stroke engine. The hybrid power-assist unit consists of two 56 V, 12 Ah detachable lithium-ion rechargeable EGO Power+ batteries. The duct works to force air through rather than around the bike, increasing energy efficiency thanks to its much lower aerodynamic drag ratio and giving a fuel efficiency of 104 mpg. WMC has optimised the electric drive so that the hybrid motor delivers all the vehicle’s power from standstill, when it A scend Performance Materials has developed two materials for EVs that improve safety and passenger comfort (writes Nick Flaherty). The Starflam X-Protect and Vydyne AVS tackle two key challenges automakers face when developing EV platforms. Starflam X-Protect is a flame- retardant nylon 66 that withstands exposure to 1100 ºC direct flame for 15 minutes, surpassing standard flame- retardant materials and aluminium tested in accordance with SAE AS5127, a standard originally designed for aerospace applications. Vydyne AVS (anti-vibration system) is a high-density polyamide for damping vibrations at 3-4 kHz from noise sources such as motors and compressors, which translates into an 80% reduction in cabin sound. is most effective. Once the bike is at speeds of more than 30 mph, the petrol engine takes over to avoid the battery draining rapidly and can benefit from the additional drag reduction at a higher velocity. The use of detachable batteries also means the bike is not subject to charge waiting, while adding a mobile power This latter material has been used in the Cadillac Lyriq for an electric AC compressor mounting bracket. Using the material helps damp down the compressor vibrations while also providing structural support. It is also source and inverter to the production version means the WMC300FR can become a mobile workstation with a three-pin plug and USB ports. The scooter was developed in conjunction with Northamptonshire Police, in the UK. The first WMC300FR is now in service equipped with a Woodway Engineering blue light system. said to be 40% lighter than aluminium. There are various levels of glass fibre added to the heat-stabilised polyamide, from 35% to 50%, to provide different trade-offs between strength, stiffness and sound damping. HYBRIDS EV MATERIALS The WMC300FR’s patented Venturi duct is coupled to a single-cylinder four-stroke engine The Vydyne AVS material has been used in the Cadillac Lyriq 12 January/February 2023 | E-Mobility Engineering