CompositesWorld

NOV 2018

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45 CompositesWorld.com Pushing EVs Forward Illustration / Karl Reque Williams Advanced Engineering FW-EVX › At 955 kg, with projected vehicle weight (including bodywork) of 1,750 kg, the platform is 400-700 kg lighter than Tesla X and S Models. › Integrated, lightweight design offers ≥552-km range and 480-kW peak power vs. 150 kW for closest competitors. › CFRP suspension wishbones are 40% lighter yet cost-neutral vs. forged aluminum, using 80% recycled carbon fiber and RACETRAK HP-RTM process with 90-second molding cycle. electronics, wheels, tires and four wishbone suspensions — weighs 955 kg/2,105 lb. With lightweight bodywork added, Williams projects a BMW M4-sized vehicle would total 1,750 kg/3,858 lb. is platform, with an 80-kWh battery, would deliver a New European Driving Cycle (NEDC) range of 552 km/343 miles. NEDC is a lab test used to measure vehicle fuel consumption, emissions and range. In 2017, it was replaced by the Worldwide Harmonised Light Vehicle Test Procedure (WLTP), which uses real driving data gathered worldwide vs. a theoretical driving profile. is should make it more comparable to the Environmental Protection Agency (EPA) test used in the US. Out of 24 BEVs ranked by InsideEVs, only the Tesla Model X P100D and Model S 75D come close in performance, with a battery capacity of 75 and 100 kWh respectively, an NEDC range of 336 and 304 miles respectively, but a weight that is greater by more than 900 lb/408 kg and 1,500 lb/680 kg respectively. e Tesla Model 3 Long Range matches the FW-EVX across the board, while the number one-selling Nissan Leaf offers a 235-mile NEDC range with a 40-kWh battery and 425 lb/193 kg less weight. (Note that Williams designed the Nissan Bladeglider EV.) However, nothing matches the FW-EVX's peak power of 480 kW. e closest compet- itors, at 150 kW, are the 2018 Chevy Bolt (323-mi NEDC range with 60-kWh battery) and the 2019 Hyundai Kona (258-mile range with 64-kWh battery). e performance of the FW-EVX also exceeds new, tougher standards in China, forecast as the largest market for EVs. To receive government incentives, long-range BEVs must have a range >400 km/249 miles and an energy density of 105 Wh/kg. e FW-EVX has a 552-km/343-mile range and more than twice the required energy density at 235 Wh/kg. Battery Weight: 340 kg Drivetrain Weight: 955 kg Vehicle Weight: 1750 kg Battery Size: 80 kW/h Peak Power: 480 kW NEDC Range: 552 km CFRP side rails integrate radiators to cool batteries Recycled carbon fiber composite wishbones Aluminum crush cans double as intakes for cool- ing air into CFRP chassis side rails CFRP battery boxes made using "223" hinged preform process 136 mm 250 mm 2800 mm

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