Xiaomi Unveils Super Motor V8s EVO: 28,000 RPM, 611 HP—Powers YU7 GT Dual-Motor System to 1,003 HP and Extended Range

On June 18, Xiaomi Auto unveiled technical details of its self-developed Super Motor V8s EVO. The motor achieves a maximum speed of 28,000 rpm and delivers a peak output of 611 PS. Xiaomi adopted a high-current, high-RPM technical approach, avoiding an increase in rotor diameter to preserve cabin space. Through AI-driven topological optimization, the company simulated over one million rotor lamination structures, enabling the motor to reach ultra-high speeds without requiring special reinforcement measures. The V8s EVO integrates Xiaomi’s proprietary silicon carbide (SiC) power module, which enhances voltage tolerance and current output capability. It can deliver an effective current of 800 A across the full voltage range, achieving an inverter peak power density of 120 kW/L—5.9% higher output in a more compact package. A new packaging design improves thermal management, ensuring stable performance during prolonged high-current operation. The motor reaches a peak efficiency of 98.38%, thanks to 0.15 mm ultra-thin stator and rotor laminations combined with X-Pin winding technology, which reduces both iron and copper losses. This contributes to a 6.4 km increase in CLTC-rated range for the Xiaomi YU7 GT. The YU7 GT features a dual-motor system combining the rear-mounted V8s EVO with a front-mounted V6s Plus motor, delivering a combined maximum output of 1,003 PS, a top speed of 300 km/h, and a 0–100 km/h acceleration time of just 2.92 seconds. In Eco mode, the vehicle can physically disconnect the front motor to reduce energy consumption, adding up to 20 km of additional CLTC range. During normal cruising, the front motor enters a “sleep” state to conserve electricity, while both motors work in tandem in Sport mode to balance dynamic performance and stability.