At the "2023 Fourth Automotive Electric Drive and Key Technologies Conference" held in Shanghai, VREMT's Electric Drive Product Director, Fu Yanru, provided an in-depth analysis of VREMT's advanced technology and applications within its integrated electric drive system based on the 800V high-voltage architecture platform. This conference not only showcased VREMT's innovative capabilities but also further solidified its leadership position in the global electric drive system market.
Technological Innovations in Electric Drive Systems
As a core component of new energy vehicles, the performance of electric drive systems directly affects the vehicle's power, economy, comfort, and safety. Fu Yanru pointed out that, with technological advances and changing market demands, VREMT continuously optimizes its 800V electric drive system to meet higher performance standards and lower energy consumption requirements. The 800V high-voltage electric drive architecture increases voltage levels, effectively reducing energy transmission losses and providing a more efficient power solution for electric vehicles.Breakthrough in Self-Developed Four-Motor Electric Drive
VREMT's latest achievement is its globally first mass-produced four-motor electric drive system, developed on VREMT's self-researched 800V integrated electric drive technology platform. This system, with its integrated single electric control dual-motor design, significantly enhances the overall driving performance of the vehicle. The system's maximum power reaches 930kW, with a peak torque of 1280N·m, enabling the Zeekr 001 FR model to achieve 0-100 km/h acceleration in 2.02 seconds and a top speed of 280 km/h. Additionally, its distributed drive and torque vectoring control technology greatly improve vehicle handling stability under complex road conditions.Deep Integration and Innovation in Technical Details
VREMT's technical strengths are evident not only in its high-performance output but also in its highly integrated system and detailed innovations. In motor technology, VREMT employs direct oil cooling optimization for stator and rotor, flat wire winding iteration, and high reluctance torque technology, which significantly increase motor efficiency, achieving a high standard of 97.8% efficiency. The motor’s effective specific power reaches 7.85 kW/kg, and torque density reaches 12 N·m/kg. In terms of reduction gears, VREMT has innovatively developed a dual planetary gear set reducer with integrated lubrication and cooling, optimizing gear ratio and parameter design to improve transmission efficiency and durability.In the area of electric control product technology, VREMT's dual electric control technology supports advanced control strategies for three-motor and four-motor assemblies. ZTCS (Drive Slip Control) supports distributed drive and torque vectoring control for the entire vehicle, enhancing overall vehicle power and stability. Within system integration technology, the parallel arrangement of dual motors in the front dual-electric drive assembly achieves deep integration of motors, reducers, and controllers, further enhancing the power density and efficiency of the entire system.
Ongoing Technological Accumulation and Market Application
The continuous innovation and deep application of VREMT’s electric drive technology have led to its products being widely adopted by renowned automotive brands such as Zeekr, Smart, Volvo, and Galaxy. With the continuous maturity of technology and accumulated market feedback, VREMT will keep pushing the envelope in electric drive technology innovation, driving continuous upgrades and optimization of electric drive systems. At the 2023 "Golden Engine Awards" ceremony, VREMT was honored with the title of "2023 China Top 100 New Automotive Supply Chain" for its highly efficient, low-noise silicon carbide electric drive system, further recognizing VREMT's capabilities in electric drive systems.Since its establishment in 2013, VREMT has been making breakthroughs and innovations in the field of electric drive technology, closely collaborating with global automotive manufacturing partners to create an effective closed loop of research, practice, and re-research. In the future, VREMT will continue to focus on market changes, launching more innovative and competitive products to contribute to the development of the new energy vehicle industry and continuously create higher value for users.