汽車低速測距報警與輔助制動系統(tǒng)設(shè)計

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中圖分類號：U463.6 文獻標識碼：A 文章編號：1003-8639（2025）06-0123-03

DesignofLow-speed RangingAlarmand Auxiliary BrakingSystemfor Automobiles

LuJunfengl，SongWei2，Sun Jian3

（1.Schoolof Mechanical andElectrical Engineering，JinlingInstituteof Technology，Nanjing，China; 2.Nanjing Iveco Automobile Co.，Ltd.，Nanjing ，China; 3.Nanjing Chuangyuan Power Technology Co.，Ltd.，Nanjing ，China）

【Abstract】Aiming at the problem that rear-end colisions are prone to occur when vehicles are following at low speeds，thispaperdesignsasystem integrating ranging alarmand auxiliary braking functionsbasedon theAT89C51 single-chip microcomputer.Bydeplyanalyzing theminimumsafe time modelofthevehicle during dynamic driving，the systemusesultrasonicdistancesensorsandvehicle speed sensors tocolectdatainreal time，combinedwith the environmentaltemperaturecompensationalgorithm，toaccuratelycalculatethevehicledistanceandtheminimumsafe time.When themeasuredvehicle speedand thedistance betweenvehicles fail tomeet theminimumsafety time requirements，thesystemwillimmediately triggeranaudibleandvisualalarm.Intheeventthat thedriverfailsto respond in time，the auxiliary braking program will be automatically initiated.

【Key Words】 low-speed ranging；auxiliary braking； single-chip microcomputer； error compensation

0 引言

隨著城市化進程加快，交通擁堵已成為全球性問題。（剩余3095字）