DFAC(SH:600006) 汽车商业评论·2025-06-19 23:06Core Viewpoint - The article discusses the potential and challenges of hub motors in electric vehicles, highlighting their advantages in design flexibility, efficiency, and performance, while also addressing the technical and practical issues that have hindered their widespread adoption [4][6][40]. Group 1: Advantages of Hub Motors - Hub motors can directly transmit power to the road, promising more efficient power transfer and design flexibility [6][16]. - Installing motors in the wheels can increase interior space for larger batteries or more passenger/cargo space [11]. - Hub motors simplify electric vehicle platform design, allowing for easier modifications to produce different drive configurations [12]. - They significantly reduce transmission losses compared to traditional internal combustion vehicles, enhancing overall efficiency [14][16]. - Hub motors enable precise torque control and distribution, improving traction and performance [17]. Group 2: Challenges of Hub Motors - Increased total mass at the wheels can negatively impact vehicle comfort, grip, and handling precision [20]. - Durability issues arise due to the severe impacts hub motors face compared to motors housed within the vehicle [22]. - Heat dissipation is a potential challenge, as effective cooling solutions must be developed to prevent overheating [23]. - Safety concerns exist regarding high-voltage cables in the event of accidents, which could pose electrocution risks [25]. Group 3: Current Developments and Future Prospects - Companies like Dongfeng and Renault are actively working on integrating hub motors into production vehicles, with notable models already introduced [29][31]. - Modern automotive manufacturers, including Hyundai, are exploring hub motor technology for various vehicle types [33]. - Innovative companies like DeepDrive are developing new hub motor technologies that promise improved efficiency and reduced costs, with plans for integration into mass production by 2028 [38]. - External hub motors offer advantages in mechanical stress handling and design flexibility, potentially enhancing traction and acceleration [39]. - Despite not being mainstream yet, hub motors hold significant potential for revolutionizing vehicle design and functionality in urban and hybrid applications [40].