London, 01 February 2024, (Oilandgaspress): – Xiaomi EV’s first product – the highly anticipated Xiaomi SU7, has been “pre-launched,” with its design, performance, range, safety, and other details making global debut. Positioned as a “full-size high-performance eco-technology sedan,” Xiaomi SU7 aims to push the limits of performance, ecosystem, and mobile smart space.
Quoting a sentence of Chinese poetry, “with firm strides we are crossing its summit.” Lei Jun, founder, chairman, and CEO of Xiaomi Group, stated that Xiaomi’s entry into the automotive industry marks a significant leap from the smartphone industry and a crucial step toward closing the loop of the Human x Car x Home smart ecosystem. Lei Jun further expressed that the century-old automotive industry offers little room for maneuvering today: “Xiaomi has decided to invest tenfold, starting from the development of fundamental core technologies, committing to constructing an outstanding vehicle. Through 15 to 20 years of effort, Xiaomi aims to become one of the top five global automakers.”
Redefining the technology stack of the automotive industry
Smart electric vehicles are trending towards integration of the automotive industry with consumer electronics and intelligent ecosystems. Integrating full-stack technologies is a necessary step for the industry’s evolution. Lei Jun stated that by integrating industrial manufacturing, smart software, and AI, Xiaomi EV will completely redefine the automotive industry, marking a significant leap in its technological landscape.
Xiaomi EV is committed to a bottom-up approach, starting from developing foundational core technologies and in-depth independent research in key technology sectors. With a commitment to “tenfold investment, conscientiously building a great car,” Xiaomi EV has invested over 10 billion CNY in the initial research and development phase. The R&D team comprises over 3,400 engineers and over a thousand technical experts in critical domains both in China and abroad. This conference unveiled breakthroughs in the development of Xiaomi EV’s five core technologies. In key sectors such as E-Motor, Battery, Xiaomi Hyper Die-Casting, Xiaomi Pilot Autonomous Driving, and Smart Cabin, numerous Xiaomi EV’s self-developed technologies have become first-of-kind globally or domestically. This showcases Xiaomi’s 13 years of comprehensive technological accumulation since its inception.
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 has also self-developed CTB Integrated Battery Technology through innovative Inverted Cell Technology, multifunctional elastic interlayer, and a minimalistic wiring system; it features a battery integration efficiency of 77.8%, the highest of CTB batteries worldwide, a 24.4% overall performance improvement, and a height reduction of 17mm, with a maximum battery capacity of up to 150 kWh and theoretical CLTC recharge range exceeding 1200 km.
To ensure stable performance during long-range travel, Xiaomi employs industry-leading safety design standards. The downward-facing pressure relief valve swiftly releases energy in extreme situations, maximizing passenger cabin safety. A 14-layer robust physical protection system includes three layers of top support, three layers of side protection, and eight layers of bottom protection.
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