基于Trucksim仿真的大型車輛山區(qū)道路行駛安全性研究
2021-08-04 18:48高偉嘉
時代汽車 2021年11期
高偉嘉
摘 要：為研究大型車輛在復(fù)雜山區(qū)道路中的行駛安全性，通過Trucksim構(gòu)建出了人-車-路耦合的仿真試驗場景，針對兩條實際山區(qū)道路車輛的行駛安全性進行分析。結(jié)果表明：在復(fù)雜山區(qū)道路中，由于彎道較多，車速和載荷是側(cè)翻的主要影響因素，當大型車輛的行駛車速位于50km/h-60km/h的速度區(qū)間時，其橫向載荷轉(zhuǎn)移率會陡增至側(cè)翻閾值，即接近于1;當路段為雨雪路面（附著系數(shù)為0.4）時，大型車輛在小半徑彎道等危險路段極易發(fā)生側(cè)滑。
關(guān)鍵詞：山區(qū)道路 大型車輛 Trucksim仿真 行駛安全性
Research on Driving Safety of Large Vehicles on Mountain Road Based on Person-Vehicle-Road Cooperation
Gao Weijia
Abstract：To study the driving safety of large vehicles on roads in complex mountainous areas， a simulation test scenario of human vehicle road coupling is constructed by using Trucksim， and the driving safety of vehicles on two actual mountainous roads is analyzed. The results show that， in the complex mountain road， as there are many curves， the speed and load are the main influencing factors of rollover. When the speed of large vehicles is in the speed range of 50km / h-60km / h， the lateral load transfer rate will increase sharply to the rollover threshold， that is， LTR is close to 1; when the road section is rainy and snowy （the adhesion coefficient is 0.4）， large vehicles are on the dangerous road such as small radius curve， and is easy to slide.
Key words：mountain roads， large vehicles， Trucksim simulation， driving safety
