THESE TINY MOTORS MAKE BIG POWER WHY SUPERCARS CHOOSE AXIAL FLUX

EV Channels Review

The Engineering Explained video delves into the innovative technology powering the 2023 McLaren Artura, with a particular focus on its novel axial flux electric motor. The reviewer highlights the motor's significant advantages in power and torque density compared to traditional radial flux motors, attributing this to a larger rotor radius, a shorter magnetic flux path, and more efficient winding placement. These benefits allow for a compact, lightweight motor (34 lbs producing 94 hp and 166 lb-ft torque) that contributes to the Artura's overall packaging efficiency and reduced wheelbase. The video also explores the new 120-degree twin-turbo V6 engine, emphasizing its lower center of gravity and optimized intake manifold placement. Key takeaways include the Artura's impressive combined output of 671 hp, its ability to drive up to 11 miles on electric power alone, and the introduction of an electronic limited-slip differential and an 8-speed dual-clutch transmission. While the axial flux motor's high inertia limits its RPM, its packaging and power density are deemed ideal for the Artura's hybrid supercar application, offering a compelling blend of electric torque and V6 power.