关键词: 法规体系；商用车；自动紧急制动系统；测试方法；标准修订

Abstract: The global fatality rate of commercial vehicle traffic accidents remains high. The automatic emergency braking system (AEBS) is a key technology to reduce accidents, and the European Union has mandated it for commercial vehicles through UN ECE R131. This paper reviews the formulation and revision process of the regulation, and provides a detailed analysis of the four core test scenarios and their corresponding criteria: stationary target, moving target, failure detection, and false response. Combined with a real vehicle test case of a semi-trailer tractor exported to the European Union, it is verified that all vehicle indicators meet the regulatory requirements. It is also concluded that excessive deceleration during the warning stage and insufficient warning-to-emergency braking time are common causes of test failure, which are rooted in unreasonable design of the vehicle's AEBS control strategy. Finally, it is pointed out that the current regulatory test scenarios have limitations, and it is suggested to improve the standards and enrich test conditions in the future, so as to provide a reference for domestic commercial vehicle export and AEBS technology optimization.

Key words: regulatory system; commercial vehicles; automatic emergency braking system; testing methods; standard revision