At its EV Technology Launch event, Xiaomi unveiled the SU7, its debut EV, alongside a series of new automotive technologies that will support its operations.
At the event, Xiaomi offered insight into the design, performance, range, and safety features of the SU7, which will be positioned as a full-size high-performance eco-technology sedan. The company’s work around EVs represents an investment of more than 10 billion CNY ($1.4 billion) in the initial research and development phase. Here, Xiaomi’s R&D is comprised of more than 3,400 engineers and over 1,000 technical staff with critical domain expertise situated in China and abroad.
At the conference, Xiaomi showcased its independently developed and manufactured electric motors – the HyperEngine V6/V6s, and the HyperEngine V8s. These e-motors utilize technologies such as Bidirectional Full Oil Cooling Technology, an S-shaped oil circuit design, and staggered silicon steel laminations design to rival the performance of equivalent ICE powertrains. The V8s, for example, offers a maximum speed of 27,200 rpm, a 569 hp (425 kW) output, and 468 lb-ft (635 Nm) peak torque. The speed of the HyperEngine V8s is enabled through an all-new ultra high-strength silicon steel plate with a tensile strength of 960MPa.
For cooling, the HyperEngine V8s adopts Bidirectional Full Oil Cooling Technology and an S-shaped oil circuit design. For the stator, a dual-cycle oil circuit is employed that increases the heat dissipation area by 100% and achieves a cooling effect of up to 20°C. The rotor section utilizes the S-shaped oil circuit to similarly increasing the heat dissipation area by 50%, achieving a cooling effect of up to 30°C. The stator silicon steel laminations feature a step-like staggered design that increases the effective heat dissipation area by a further 7%.
Xiaomi confirmed that its HyperEngine V8s is currently in development, and set to be mass-produced and implemented in its EVs from 2025. The company’s proprietary V6/V6s e-motors offer a rotational speed of 21,000 rpm, a maximum power of 294 hp (216 kw), and a maximum torque of 400 Nm (295 lb-ft) – while the enhanced V6s e-motor achieves a maximum power of 368 hp (270 kw) and a maximum torque of 368 lb-ft (500 Nm).
At the launch event, Xiaomi also revealed its CTB Integrated Battery Technology, which it developed through Inverted Cell Technology, multifunctional elastic interlayer, and a minimalistic wiring system. It features a battery integration efficiency of 77.8%, a 24.4% overall performance improvement, and a height reduction of 17 mm, with a maximum battery capacity of up to 150 kWh and an estimated CLTC recharge range exceeding 745 miles (1200 km).
Xiaomi’s SU7 EV is also equipped with a self-developed Battery Management System (BMS) that meets the ASIL-D safety standard. The system includes three independent thermal runaway monitors and alarms, along with an early warning system. Ahead of being equipped in the EV, each of Xiaomi’s batteries undergoes a series of battery safety tests – including more than 1,050 safety verifications.
Inside, the Xiaomi EV Smart Cabin features a 16.1-inch 3K central console, a 56-inch HUD head-up display, a 7.1-inch rotating dashboard, and two seat-back extension mounts for two tablet devices. Internally, the infotainment system is equipped with the Snapdragon 8295, an in-car chip with AI computing power that offers up to 30 TOPS. The user experience of the Smart Cabin system resembles that of a tablet, providing a sense of familiarity from consumer electronics. Once the door is unlocked, the vehicle OS launches in 1.49 seconds and, while operating, offers cross-device connection with smartphones. When a phone is bought into the cabin, for example, the IVI console automatically displays an icon that enables easy access to the phone’s UI.
The in-car OS will also integrate mainstream applications into its app library, including the full Xiaomi tablet application ecosystem, with the system gradually adapting to more than 5000 apps over time. Smartphone applications can be pinned to the car console, allowing them to be accessed on the in-vehicle display.
In terms of hardware integration, the SU7 will offer support for more than 1000 of Xiaomi’s smart home devices, enabling functions such as automatic discovery, password-free access, and the ability to set up automation scenarios. The car interior also offers pin-point expansion connections, supporting plug-and-play functionality for a wide range of devices. Further support is offered through the EV’s support of CarPlay, mounting of iPads and iPad accessories, and applications on the rear extension mount.