Core Viewpoint - The introduction of the EMB (Electric Motor Brake) technology is expected to significantly enhance automotive safety by eliminating traditional hydraulic systems and allowing for more precise control of braking systems, thus marking a major upgrade in vehicle safety standards [1][24]. Group 1: EMB Technology Overview - EMB is a fully electric control braking system that replaces traditional hydraulic systems, allowing each wheel to be independently controlled by an electric motor [6][8]. - The technology promises a response time of under 100 milliseconds and eliminates the need for hydraulic fluid, which can lead to delays in braking response [8]. - EMB represents a shift from mechanical to intelligent systems in vehicles, aligning with the industry's move towards smarter automotive technologies [24]. Group 2: Safety and Standards - The new national standard GB21670-2025 has been established to regulate EMB technology, emphasizing safety redundancy and functional safety levels [9][12]. - The standard requires that in the event of a primary power failure, a backup power source must take over within 5 seconds to ensure continuous operation of the braking system [12]. - EMB systems must achieve the highest safety level in automotive electronics (ASIL D), which necessitates rigorous testing and redundancy in both hardware and software [13][14]. Group 3: Cost Implications - The implementation of EMB technology is expected to increase vehicle costs by 30% to 50% compared to existing EHB systems due to the stringent safety requirements and advanced technology involved [16]. - Potential cost reduction strategies include integrated design to minimize component count and economies of scale through localized production [16][20]. Group 4: Market Adoption and Future Outlook - EMB technology is likely to be adopted first in electric vehicles and high-end models, as these segments demand lightweight and efficient braking systems [22]. - The commercial viability of EMB is supported by the new national standards and the growing emphasis on safety in the automotive industry, which is becoming a key competitive factor [20][24]. - As the penetration of electric vehicles increases, EMB technology is expected to become more widespread, potentially extending to commercial vehicles as well [23].

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].