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Ferrari picks UK motors for 340km/h hybrid supercar

13 June, 2019

Ferrari has chosen the UK electric motor manufacturer Yasa to supply the motors for its first series production hybrid sportscar – the 340km/h SF90 Stradale. Each vehicle will contain three motors, with a combined capacity of 162kW, helping to propel the  four-wheel-drive vehicle to 100 km/h in 2.5 seconds, and 200 km/h in 6.7s.

The plug-in hybrid electric vehicle’s main power source will be a 4-litre, V8 internal combustion engine rated at 574kW and capable of producing 800Nm of torque at 8,000 rpm. Together, the motors and engine will deliver 1,000 horsepower.

A 7.9kWh lithium-ion battery will be able to achieve an electric-only range of 25km at speeds of up to 135km/h, driving the front wheels.

Two of the motors are located on the front axle and control the torque delivered to the front wheels independently, using torque vectoring to manage traction when cornering. The third motor, located between the engine and gearbox at the rear, uses Formula 1 kinetic technology. The motors and inverters are cooled by a dedicated circuit with its own radiator at the front of the car, and an intake on the front bumper.

Under normal braking, energy recovery via the motors will be the priority, but under hard braking, an hydraulic system will join in.

Ferrari’s SF90 Stradale hybrid electric sportscar will be powered partially by three UK-built axial-flux motors

Yasa has developed a customised version of its axial-flux motor technology for Ferrari, with a “world-leading” power density of 14kW/kg. The motors will be built at its plant in Oxford, UK.

“We’ve worked closely with Ferrari over the past 2½ years to develop a custom solution that meets their unique performance requirements,” says Yasa CEO, Chris Harris. “Through this long-term collaboration, we are helping to set the bar for high-performance electric driving experiences.”

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