The invention discloses a longitudinal force control system and a longitudinal force control method based on a tire vertical load. Comprises: an active suspension controller configured to acquire a suspension height and a suspension support force for each tire; the chassis domain controller is configured to determine the vertical load and the target torque limit value of each tire according to the suspension height and the suspension supporting force of each tire; the vehicle control unit is configured to determine the target driving torque of each tire according to the target driving torque limit value and distribute the target driving torque of each tire according to the vertical load; and a stability controller configured to determine a target braking torque for each tire according to the target braking torque limit and to distribute the target braking torque for each tire according to the vertical load. According to the method, the tire vertical load is calculated by introducing the suspension state, control over the longitudinal force is optimized, feedforward control and inter-wheel distribution are conducted on the longitudinal force based on the vertical load, and the dynamic property, stability and comfort are improved.
本申请公开了一种基于轮胎垂向载荷的纵向力控制系统及纵向力控制方法。包括:主动悬架控制器,被配置成采集悬架高度和每个轮胎的悬架支持力;底盘域控制器,被配置成根据悬架高度和每个轮胎的悬架支持力分别确定每个轮胎的垂向载荷和目标扭矩限值;整车控制器,被配置成根据目标驱动扭矩限值确定每个轮胎的目标驱动扭矩以及根据垂向载荷对每个轮胎的目标驱动扭矩进行分配;稳定性控制器,被配置成根据目标制动扭矩限值确定每个轮胎的目标制动扭矩以及根据垂向载荷对每个轮胎的目标制动扭矩进行分配。本申请通过引入悬架状态计算轮胎垂向载荷,优化了对纵向力的控制,基于垂向载荷对纵向力进行前馈控制和轮间分配,提升了动力性、稳定性和舒适性。
Longitudinal force control system and longitudinal force control method based on tire vertical load
基于轮胎垂向载荷的纵向力控制系统及纵向力控制方法
28.02.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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