Core Viewpoint - The article discusses the new national standard GB 21670-2025 for passenger car braking systems, which will be implemented on January 1, 2024, emphasizing safety and the need for regulations to keep pace with technological advancements in the automotive industry [3][8]. Group 1: New Regulations and Safety - The new regulations aim to address the increasing demands on braking systems due to heavier vehicles and more powerful engines over the past 17 years [5][6]. - The standard includes specific requirements for the "single pedal mode," mandating that vehicles must maintain a certain speed when the accelerator is released, thus reinforcing the use of the brake pedal for stopping [26][35]. - The regulations also require that the default deceleration of regenerative braking systems must not exceed 3 m/s², which is approximately 0.3g, impacting how features like Tesla's single pedal mode operate [28][33]. Group 2: Regenerative Braking and Its Implications - Regenerative braking systems must work in conjunction with traditional mechanical brakes, and drivers cannot manually switch between the two systems [43]. - The new standards require that the braking system must be reliable, with specific tests for battery performance and emergency braking capabilities [58][60]. - The regulations recognize the complexity of braking systems in electric vehicles, ensuring that regenerative braking serves as an auxiliary system rather than the primary one [47]. Group 3: Future of Braking Technology - The new regulations also include standards for line-controlled braking systems, indicating a proactive approach to regulating emerging technologies in the automotive sector [50][61]. - The article suggests that line-controlled braking may become a standard in the future, offering faster response times and improved safety [63][66]. - Overall, the new regulations are seen as a necessary step to mitigate potential risks associated with new technologies in the automotive industry [65][66].