摘要
卡车行驶中避撞制动技术是减少及避免事故的关键。选取皮卡车制动相关技术参数,应用计算机软件构建仿真模型,计算、分析模拟了不同状态下多种因素对皮卡车制动避撞的影响。结果表明,初速度对制动距离的影响最大,路面附着系数、制动力矩、前后轮制动力分配比例的影响次之,加压时间相对前面几个因素影响较小,整车质量对制动距离的影响相对更小;而车辆直线制动时,前后轮制动力分配比例对车辆稳定性影响较大,整车质量的影响次之,其余因素对车辆稳定性的影响都很小。
Braking technology is a key to avoid vehicle accident of collision.Based on Simulation software,the vehicle parameterized model was set up.The effects of different factors were investigated on the vehicle’s braking characteristics by numerical simulation.The results showed that,the initial speed had the greatest effect on the braking distance,road adhesion coefficient,braking torque and the proportion of braking force distribution between front and rear wheels had the poor effect on braking distance,and pressurization time had less effect on the above factors.When the vehicle is linear braking,the braking force distribution ratio of front and rear wheels had a great influence on the vehicle stability,followed by the vehicle mass,and the other factors.
作者
吕博威
咸立伟
许智天
LYU Bo-wei;XIAN Li-wei;XU Zhi-tian(School of Mechanical Electronic&Information Engineering,China University of Mining and Technology(Beijing),Beijing 100084)
出处
《机械设计》
CSCD
北大核心
2021年第S02期51-55,共5页
Journal of Machine Design
关键词
卡车制动
避撞
动态特性
数值模拟
vehicle braking
collision avoidance
dynamic characteristics
numerical simulation
