线控底盘：解锁高阶智驾，迈入放量周期 20260302 摘要 线控底盘行业正经历从"技术导入"到"放量落地"的关键阶段，预计 市场规模将从百亿级增长至千亿级，渗透率持续提升，主要增长点集中 在线控制动与线控转向。 线控底盘通过电子电气架构升级，实现多系统电控互联与协同，响应速 度显著提升至毫秒级，更适配高阶智驾对系统响应能力、协同控制与安 全冗余的需求。 政策层面，2020 年以来陆续出台政策鼓励线控系统开发，2025 年制动 与转向相关新国标发布，为线控关键部件上车提供明确规范与依据，并 明确 L3 及以上自动驾驶定义。 市场空间方面，预计 2025 年线控底盘相关市场规模约为 400 多亿，到 2030 年有望达到接近 1,200 亿水平，行业处于高速生长期，渗透率持 续提升。 线控制动主要分为 EHB 与 EMB/EMV 两种技术路线，当前主流为 EHB，其中 One Box 方案因集成度高、成本相对较低且能量回收能力 强而占据主导地位，市场集中度较高。 Q&A 为什么在 2026 年这个时点发布线控底盘行业深度报告，核心产业判断是什么？ 2026 年预计将成为智能驾驶显著加速的关键年份，产业端有望从 ...

Core Insights - The report from Kaiyuan Securities indicates that the braking system can be divided into control, power supply, transmission, and braking devices, with the upgrade process based on the electronicization of structural components [1][3] - The market for braking systems in China is expected to reach a scale of 50 billion by 2030, with the electronic mechanical brake (EMB) market projected at 16.4 billion [3] - The domestic production rhythm of local manufacturers is expected to be close to that of international giants like Bosch, allowing for competitive positioning [3] Summary by Category Braking Systems - The braking system is categorized into control, power supply, transmission, and braking devices, with the electronicization process being crucial for upgrades [1][3] - EMB is expected to benefit from regulatory relaxations starting in 2025, allowing for domestic mass production and potential overseas expansion [3] - The anticipated mass release of EMB-equipped vehicles is expected by the end of this year or early next year [3] Market Size and Dynamics - The domestic braking market is projected to reach 50 billion by 2030, with the EMB segment alone expected to be 16.4 billion [3] - Considering overseas markets and Robotaxi, the overall market size is likely to expand further [3] - The domestic market for line control chassis is expected to exceed 100 billion by 2030, with significant opportunities for local suppliers [1] Line Control Steering - Line control steering is crucial for enhancing driving experience and ensuring safety in advanced driving scenarios [2] - The SBW (Steer-by-Wire) system is seen as essential for L4/L5 autonomous driving, with potential benefits in cabin space and maneuverability [4] - The market for steering systems is expected to reach 50 billion by 2030, with SBW projected at 21.5 billion [4] Future Trends - The next generation of intelligent chassis is expected to break traditional system boundaries, integrating braking, driving, and steering through "corner modules" [6] - This integration aims to address issues such as control lag and pitch effects seen in early smart vehicles [6] Investment Opportunities - Companies with comprehensive platform capabilities in chassis systems and upstream motor/lead screw technologies are recommended for investment, including companies like Nissin Brake (01316), Zhejiang Shibao (01057), and others [7]