强制性国标征求意见：乘用车默认百公里加速应不小于5秒

Core Viewpoint - The article discusses the new national standard "Technical Conditions for Motor Vehicle Operation Safety," which aims to replace the existing GB 7258 standard, addressing the evolving safety needs of vehicles, especially in light of the increasing prevalence of electric and assisted driving vehicles [1][3]. Summary by Sections Background and Need for Revision - The existing GB 7258 standard, first established in 1987 and revised multiple times, is now deemed inadequate due to advancements in vehicle safety technology and the rise of new vehicle types, particularly electric and assisted driving vehicles [3]. - The current version has not kept pace with the rapid development of traffic safety management needs, leading to increased safety risks and accidents associated with new vehicle technologies [3]. Key Changes in the New Standard - The new standard introduces mandatory requirements for electric regenerative braking systems and features to prevent unintended acceleration in electric and hybrid vehicles [3]. - It specifies that passenger vehicles must default to a maximum acceleration time of no less than 5 seconds to reach 100 km/h after ignition, aimed at reducing the risk of loss of control during startup [5][6]. - Enhanced safety requirements for assisted driving vehicles include conditions for activating and deactivating combined driving assistance systems, as well as monitoring driver engagement [4]. Safety Features and Emergency Protocols - The new standard mandates that vehicles equipped with electronic locking systems must automatically unlock doors in emergencies, such as battery thermal events, to facilitate passenger escape [6]. - It also requires that all vehicle doors have mechanical release functions to ensure they can be opened without external tools in case of electrical failures [6].