Core Points - The new national standard for passenger car brake systems (GB 21670-2025) will be implemented on January 1, 2026, replacing the 2008 version, reflecting the government's careful consideration and responsiveness to industry feedback [2][3][4]. Group 1: Key Features of the New Standard - The new standard introduces the definition and requirements for Electronic Transmission Brake Systems (ETBS), which includes fully dry electronic mechanical brake systems (EMB) and electronic hydraulic brake systems (EHB) without mechanical backup [4][5]. - The standard emphasizes the transition from semi-line control to fully line control brake systems, ensuring safety while encouraging technological innovation [4][5]. - The new standard significantly increases the requirements for functional safety in brake systems, mandating specific fault types and testing conditions for verification [5][6]. Group 2: Industry Impact and Technological Evolution - The implementation of the new standard is expected to guide the technological evolution of brake systems and provide a framework for industry practices, reducing fragmentation in development [5][6]. - The new requirements for functional safety will compel suppliers to enhance their safety systems, including the establishment of ISO 26262 safety frameworks and compliance with GB/T 34590 standards [5][6]. - The standard's alignment with international regulations (ECE R13-H) will facilitate the export of Chinese passenger vehicles, reducing trade barriers and enhancing competitiveness in global markets [10][11]. Group 3: Commercialization of EMB - The new standard is anticipated to accelerate the commercialization of EMB products, although initial costs may be 20% to 30% higher than traditional systems due to advanced components [12][13][14]. - Long-term, EMB systems are expected to become more cost-effective through scale and platform design, offering superior performance in terms of response speed and redundancy [14][15]. - The standard provides a "green light" for EMB technology, allowing companies with advanced R&D to lead in the market, while ensuring safety standards are maintained [15].