Industry Information
Sep. 24, 2025
In the wave of automotive intelligence and electrification, the wheel-end system, as a core component of vehicle handling and safety, is undergoing profound technological transformation. Shanghai Xianwei Transmission Technology Co., Ltd., a national high-tech enterprise, is redefining the future of wheel-end technology with its system-level R&D capabilities in areas such as Electronic Mechanical Braking (EMB), independent wheel steering, energy-recovering suspension, and wheel-end sensing systems.
Xianwei Transmission focuses on technological innovation in transmission systems, motion control systems, and dynamic analysis sensor systems for transportation vehicles, forming a complete technology layout. The company adopts a dual-technology-route strategy in the electronic mechanical braking field, launching multiple product generations that cover a full range of clamping forces from 3KN to 180KN. The screw-type EMB features high-precision force control and rapid response, supports CAN bus communication, and multiple closed-loop control strategies, and has been widely applied in passenger cars, logistics vehicles, and two-wheelers. The cam-type EMB, with its compact structure and cost advantages, shows excellent performance in high-torque commercial vehicles, with models such as C50 and C120 already included in national key R&D programs. For the commercial vehicle sector, Xianwei has also developed an S-type cam drum EMB system with integrated automatic clearance adjustment, significantly improving reliability and maintenance efficiency.
In the field of independent wheel steering systems, Xianwei, building upon the long-term research achievements of Professor Chen Xinbo’s team, has launched multiple angle module products. The double-crank transmission steering system, based on patented mechanisms, achieves a ±90° steering angle and uses an innovative design where the motor is fixed to the chassis, effectively reducing unsprung mass. The push-rod steering module adopts a screw-parallel shaft structure, offering flexible solutions for vehicle design. The wheel-side electric drive angle module highly integrates driving and steering functions, creating new possibilities for intelligent chassis and special-purpose vehicles.
Xianwei has also developed a coaxial tubular energy-recovering suspension system, which innovatively combines a traditional damper with a motor-screw structure, enabling both adjustable suspension height and vibration energy recovery. This product is suitable for 600kg wheel-end loads and has already been applied in heavy-duty vehicles and wheel-leg robotic joint systems. Through core components such as force-sensing bolts and angle sensors, Xianwei has built a comprehensive wheel-end force and torque sensing system. By integrating multi-sensor fusion and machine learning algorithms, the system achieves high-precision estimation of six-dimensional force/torque at the wheel end, providing real-time data to support vehicle dynamics control.
Xianwei has established an advanced R&D base in Pudong, Shanghai, equipped with a complete R&D toolchain. In manufacturing, the company has built industrial chain advantages through diversified cooperation models: the Jiading, Shanghai trial factory is responsible for structural component prototyping and cam machining; the Changzhou plant for planetary roller screws has an annual capacity of 200,000 sets; and the Suzhou sensor factory is preparing to launch a production line with an annual output of 1 million units. This “R&D + Manufacturing” dual-drive model ensures that technological innovations are quickly transformed into product capabilities.
Xianwei’s technology roadmap clearly reflects four major development trends in wheel-end systems:
Integration – brake, steering, suspension, and drive functions are highly integrated at the wheel end;
By-wire Control – mechanical connections are replaced by electrical signals, enabling more precise control;
Intelligence – through multi-sensor fusion and AI algorithms, systems achieve adaptive control;
Energy Utilization – brake and suspension vibration energy recovery is integrated into vehicle energy management.
As an innovation leader in wheel-end technologies, Xianwei Transmission demonstrates the innovation strength of Chinese enterprises in core chassis technologies through parallel multi-technology development and system-level integration. With these technologies gradually moving toward mass production and application, Xianwei is laying a solid technological foundation for building the next-generation intelligent transportation system.
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