porsche offers a preview of the next generation of electric motors with mission R concept

PORSCHE’S 718 LINEUP TO GO FULLY ELECTRIC BY 2025

on the occasion of the IAA mobility 2021 in munich, porsche gave a glimpse into its automotive future. as reported by car and driver, the car giant will turn its 718 lineup fully electric by 2025 and its design has been previewed by the mission R concept car.

‘without the wild aero, and scaled down in its aggressive demeanor, the mission R gives a good idea of what a production 718 cayman could look like,’ the magazine said.

porsche mission R
images by porsche

THE PORSCHE MISSION R CONCEPT

porsche’s mission R concept combines state-of-the-art technologies and sustainable materials, such as natural fibre-reinforced plastics. in addition to a progressive design, the extremely low-slung, all-electric competition car features the characteristic lines of the sports cars from stuttgart-zuffenhausen. the two newly developed electric motors incorporated in the porsche mission R deliver up to 800 kW (1,088 PS) in so-called qualifying mode. the battery capacity of around 80 kWh and the innovative recuperation system make sprint racing possible with no loss of output.

sustainability is firmly anchored in the company’s strategy as a basic principle: ‘as a car manufacturer, porsche aims to achieve a carbon-neutral balance sheet overall by 2030. this means that a low carbon footprint, closed-loop recycling and sustainability are increasingly becoming the prime focus,’ said michael steiner, member of the executive board for research and development at porsche AG.

porsche’s mission R concept combines state-of-the-art technologies and sustainable materials

PORSCHE’S INVESTMENT IN SUSTAINABILITY

over the next ten years, porsche will invest more than one billion euros in decarbonization through the use of wind turbines, solar energy and other measures to protect the environment. Investments are also being made in the sustainability of the vehicles themselves. the batteries used in models that are fully or partially powered by electricity as well as eFuels for vehicles with combustion engines play key roles in sustainable mobility.

in the mission R, porsche is offering a preview of the next generation of electric motors. the most important innovation of these permanently excited synchronous machines (PESMs) is the direct oil cooling of the stator, which enables very high peak and continuous power output levels to be achieved, in addition to delivering a very high level of efficiency. while in conventional electrical machines the cooling fluid flows through a jacket outside the stator, in the case of direct cooling, the oil flows directly along the copper windings. this allows more heat to be dissipated directly at source. in addition, the slots in the stator can be made smaller, which leads to greater efficiency in real driving cycles. an innovative stator seal is used to prevent the coolant from entering the rotor chamber.

‘without the wild aero, and scaled down in its aggressive demeanor, the mission R gives a good idea of what a production 718 cayman could look like.’

as with the taycan’s electric motors, the hairpin winding contributes to a high yield of power and torque while maintaining compact dimensions. the coils consist of rectangular wires that are bent and then inserted into the stator’s laminated core. their shape is reminiscent of hairpins, hence the name. the open ends are welded together by laser.

the direct oil cooling of the stator, which enables very high peak and continuous power output levels to be achieved