Global layout of braking+turning full industry chain, accelerating global expansion

At present, the electrification and intelligent transformation of the automotive industry has entered a deep water zone. As the core component of the automotive chassis, the power steering pump is entering a critical period of technological iteration. Lightweight, low power consumption, and high responsiveness have become the core indicators of the next generation of products. At the same time, the domestic substitution process of domestic core components is accelerating, gradually breaking the monopoly pattern of overseas enterprises in the high-end field and promoting high-quality development of the industry.

In the field of lightweighting, with the increasing demand for range in new energy vehicles, lightweighting of power steering pumps has become a key direction for enterprise technology research and development. At present, the industry mainly achieves breakthroughs in lightweighting through material innovation and structural optimization, using new materials such as high-strength aluminum alloy and engineering plastics to replace traditional cast iron and steel, while optimizing the pump body structure, reducing the number of components, and effectively reducing product weight. Data shows that the weight of the new generation EPS booster pump is reduced by 20% -30% compared to traditional products. Among them, the EPS pump body with aluminum alloy shell can be reduced to less than 1.2kg, which is more than 40% lighter than cast iron pump body. The lightweight EPS product launched by Zhejiang Shibao adopts integrated die-casting technology and high-strength composite materials, which not only significantly reduces weight, but also improves the corrosion resistance and service life of the product. It has been mass-produced and matched with new energy vehicle companies such as BYD and NIO.

In terms of low power consumption, in response to the core demand for energy consumption control of new energy vehicles, industry enterprises are accelerating the power consumption optimization of EPS products. By optimizing motor control algorithms and adopting efficient brushless motors, the energy consumption of product operation can be reduced. At present, EPS products compatible with 48V/800V high-voltage platforms have become mainstream in the market, with power consumption reduced to below 62W, which is more than 35% lower than traditional 12V EPS products. BYD's self-developed fifth generation EPS system integrates self-developed MCU and high-precision reluctance torque sensor, with a response delay of less than 10ms and an average power consumption of only 50W. It has significant energy-saving effects and has been applied to high-end models such as Han EV and Tengshi N7. In addition, the steer by wire (SBW) system has become the core development direction of future low-power steering technology due to the elimination of mechanical connections, no parasitic losses, and further reduced power consumption compared to EPS.

In terms of intelligent upgrading, the power steering pump is evolving from a single execution unit to an intelligent chassis domain control node. ASILD functional safety certification, OTA upgrade capability, and dual redundancy design have become standard for high-end products. At present, high-end EPS products have achieved deep linkage with intelligent driving systems and vehicle stability systems. They can dynamically adjust the steering assist size and steering ratio according to parameters such as vehicle speed, driving mode, and road conditions, achieving a "low-speed light, high-speed stable" driving experience. At the same time, they support L2+level intelligent driving functions such as automatic parking and lane keeping. The wire controlled steering system has achieved software defined steering, which can optimize steering parameters through OTA upgrades, customize steering feel, and balance comfort and handling. It also has dual MCU+heterogeneous redundancy design, with a functional safety level of ASIL-D, meeting the safety requirements of advanced intelligent driving.