全触屏车机响应速度与跟车安全风险关联特性

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主题词：全触屏车机响应速度跟车模拟驾驶人机交互中图分类号：U461.91 文献标志码：A DOI：10.19620/j.cnki.1000-3703.20250146

The Correlation between Full-Touch Screen Infotainment System ResponseSpeedandCar-FollowingSafetyRisk

WangChang'，LiuHaosen'，SongJingni² （1.School of Automobile，Chang'an University，Xi'an710o64; 2.Schoolof Transportation Engineering，Chang'an University，Xi'an ）

【Abstract】To investigate the impact offul-touch screen infotainment system response speedoncar-following safety， thispaperconductshuman-machineinteractionexperimentsusingrealcar-folowingvideosinanin-vehiclecockpitsimulator. Dataarecolectedfrom25participantsunder2vehiclespeedsand3responsespeedconditions duringboth staticanddyamic car-followingscenarios.Thevisual distractiondataareanalyzedtorevealcorrelations betweensystemresponse speedandcarfollowing safetyrisks.Resultsdemonstratethatasresponse time increases fromOto8Oms，the Total Time SpentonScreen （TTS），Glance-to-ScreenCount （GSC），and SingleOperationTime （SOT）exhibit nonlineargraduallygrowth withdecelerating rates.Specifically，at8Okm/h，whenresponse time increases fromOto40ms，theTTS，GSC，andSOTincreaseby7.83 % 19.74%，and28.72%respectively，while thesmalerincrementsof10.97%，12.89%，and18.06%.When precedingvehicles braked at a3s time headway，the minimum following distance decreasesby14.5 m（ 80km/h ）and12.78m （ 100km/h ）as response time extends from O to 800ms .Simulation results across 3 time headway levels confirm that slower system response significantlyincreasesbothcolisionprobabilityandseverity.Thesefindingsprovidetheoreticalfoundations fordesigningsafer full-touch HMI systems，highlighting the critical role ofoptimizing response speed in mitigating driving risks.

Key words：Full-touch screen infotainment system，Response speed， Car-following，Driving simulation，HumanMachine Interaction （HMI）

【引用格式】王畅，刘浩森，宋京妮，等.全触屏车机响应速度与跟车安全风险关联特性[J].汽车技术，2025（8）：41-48. WANG C，LIUHS，SONGJN，etal.TheCorrelationbetweenFull-TouchScreen Infotainment SystemResponse Speedand Car-FollowingSafetyRisk[J].Automobile Technology，2025（8）： 41-48.

1前言

随着汽车工业的快速发展，全触屏人机界面（HumanMachineInterface，HMI）已成为车辆智能化的重要组成部分，其交互设计需求也从单一驾驶情景向多情景转变。（剩余10777字）