Study of Steering Mobility of Multi-axle Vehicles with Steer-by-brake System
作者单位：Automotive Research InstituteBeijing Institute of Technology
会议名称：《2020中国汽车工程学会年会暨展览会》
会议日期：2020年
学科分类：082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程]
关 键 词：steering mobility steering radius vehicles with wheel motor driving mode
摘 要：Steering radius of multi-axle vehicle is larger,speed is lower and steering mobility is worse than normal *** multi-axle vehicles with steer-by-brake system,when inner wheels of rear two axles are braked and driving torque of other wheels increases,steering radius decreases and mobility is *** analysis of established vehicle model,effects of different initial speeds,front-wheel steering angles and driving modes on steady speed,yaw angular velocity and steering radius is obtained *** results show that vehicle speed,yaw angular velocity and steering radius may be impacted by slip phenomenon with increase of driving torque when initial speed is *** change stages of wheels slip ratio during simulation process and their reason are *** steering angle increases,stable speed decreases,yaw velocity increases,steering radius decreases,and time required to reach the stable state *** driving mode is the same driving torque for six wheels or different driving torque for inner and outer wheels,steering radius is obviously smaller than driving mode with different driving torque for front and rear axles.