基于避险临界点的行车危险识别与制动策略研究

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主题词：车辆安全实时风险高危场景识别制动策略避险临界模型中图分类号：U461.91 文献标志码：A DOI：10.19620/j.cnki.1000-3703.20240896

Research on Driving Hazard Identification and Braking Strategy Based on Collision Evasion Point

Zhu Tong'，Zhang Zhuo'，ZhangYunxing'，Zhao Yunfei¹，Li Xiaohu² （1.School of Transportation Engineering，Chang'an University，Xi'an71Oo64;2.ChinaAutomotive Technologyand Research Center， Tianjin 300300）

【Abstract]To quantifydriving risk anddevelopasafe braking strategy，this paper introduces theconcept of Collision Evasion Point （CEP）andbuilds mathematical models for straight-driving and turning scenarios.Using theCEP，ariskrepresentationindexisdefinedtoquantifydrivingrisk.Moreover，116accidentcasesfromChinaIn-DepthAcidentStudy （CIDAS）databaseareclasiiedandtheriskrepresentationindexisapliedtoidentifyhigh-iskcases.Finalldyamic brakingstrategy basedonthebraking-timeindicatorisproposed.Testresultsshowthat，acrossvarious high-riskscenarios， theproposedriskrepresentationindexoutperformsTime-to-Colision（TTC）basedstrategyinidentifyingscene-levelrisk， while thebraking strategyachievesmorereasonable braking timesandsmoother speed profiles，thereby beteravoiding collisions.

Key words： Vehicle safety，Real-time risk，High-risk scenario identification，Braking strategy， Critical risk-avoidancemodel

【引用格式】朱彤，张卓，张兴，等.基于避险临界点的行车危险识别与制动策略研究[J].汽车技术，2025（7）：23-30. ZHU T，ZHANG Z，ZHANG YX，et al.Research on Driving Hazard Identification and Braking Strategy Based on Colision EvasionPoint[J].Automobile Technology，2025（7）： 23-30.

1前言

近年来，我国道路交通安全形势不容乐观，及时识别行车风险并触发制动对于降低事故率、减轻事故损伤至关重要[1-2]。（剩余10948字）