At the conference, Xiaomi showcased its independently developed and manufactured E-motors, HyperEngine V6/V6s, and HyperEngine V8s.
The three E-motors, employing innovative technologies such as Bidirectional Full Oil Cooling Technology, S-shaped oil circuit design, and staggered silicon steel laminations design, rival the performance of traditional large V8 and V6 powertrains from the era of internal combustion engines, pushing the industry’s performance boundaries to new heights.
Notably, HyperEngine V8s, with a maximum speed of 27,200 rpm, 425kW output, and 635N·m peak torque, sets a global record for E-motors. To enable the industry-exceeding standard of 27,200 rpm, HyperEngine V8s employs the industry’s first ultra high-strength silicon steel plate with a tensile strength of 960MPa, boasting strength that surpasses mainstream industry offerings by more than two-times.
For cooling design, HyperEngine V8s adopts a Bidirectional Full Oil Cooling Technology and an S-shaped oil circuit design. For the stator, a dual-cycle oil circuit is employed, increasing the heat dissipation area by 100% and achieving a cooling effect of up to 20°C. Meanwhile, the rotor section utilizes a patented S-shaped oil circuit, increasing the heat dissipation area by 50% and achieving a cooling effect of up to 30°C. Additionally, the stator silicon steel laminations feature a “step-like” staggered design, further increasing the effective heat dissipation area by an additional 7%.
HyperEngine V8s is in development, and set to be mass-produced and implemented in Xiaomi EVs in 2025.
Xiaomi’s self-developed HyperEngine V6/V6s E-motors boast an industry-leading rotational speed of 21,000rpm, surpassing the most powerful mass-produced electric motor globally. Among them, the HyperEngine V6 super motor has a maximum power of 299PS and a maximum torque of 400N·m, while the HyperEngine V6s super motor achieves a maximum power of 374PS and a maximum torque of 500Nm.
Source: Xiaomi Corporation
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