首页>
外国专利>
Method and system for controlling a vehicle tire-to-road friction estimation
Method and system for controlling a vehicle tire-to-road friction estimation
展开▼
机译:控制车辆轮胎到道路摩擦估计的方法和系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
Method for controlling a vehicle, comprising: identifying an upcoming curve and determining its properties; determining current vehicle speed, vv, estimating friction, μe, between a tire of the vehicle and the road; estimating maximum allowable vehicle speed, vmax_e, when entering the curve based on the properties, speed and friction; if the current vehicle speed is higher than the estimated maximum allowable vehicle speed, determining that a friction measurement is required; if distance, dv, between the vehicle and a curve entrance is higher than a predetermined threshold distance, dT, and if a braking action is detected, performing a friction measurement during the braking action to determine current friction, μc; if a distance between the vehicle and the curve entrance is lower than the predetermined threshold distance, performing a friction measurement to determine a current friction; and determining a maximum allowable vehicle speed vmax_d based on the curve radius, speed and friction.
展开▼
机译:用于控制车辆的方法,包括:识别即将到来的曲线并确定其性质;确定电流车速,V <亚> V sub>,估计车辆轮胎和道路之间的摩擦,μ<亚> e sub>;估计最大允许车速,V MAX_E SUB>基于性质,速度和摩擦进入曲线时;如果当前的车速高于估计的最大允许车速,则确定需要摩擦测量;如果距离,车辆和曲线入口之间的距离为D V sub>,则高于预定阈值距离,D t sub>,并且如果检测到制动动作,则执行摩擦测量在制动作用期间确定电流摩擦,μ<亚> C sub>;如果车辆和曲线入口之间的距离低于预定阈值距离,则执行摩擦测量以确定电流摩擦;基于曲线半径,速度和摩擦确定最大允许车速V MAX_D SUB>。
展开▼