Braking performance is a priority in vehicle safety performance testing projects; its level is important to traffic safety and transport efficiency of motor vehicle. The paper introduces the braking performance detection device of motor vehicle, focuses on the comparative analysis of the two motor vehicle braking performance test techniques, and describes the usability and features of both detection technology for reference.% 机动车制动性能是车辆安全性能检测中的重点项目，其高低对机动车的行车安全及运输效率具有重要影响。本文介绍了机动车制动性能检测装置，重点对两种机动车制动性能检测技术进行对比分析，并阐述了这两种检测技术的可用性和特点，以供参考。
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