The invention relates to an automobile lateral stability improving method based on stable state prediction. The method is characterized in that an expected yaw velocity and side slip angle calculationmodule, a stability judgment module, a model prediction controller and a CarSim vehicle model are included; the expected yaw velocity and side slip angle calculation module is used for determining the expected automobile yaw velocity and side slip angle; the stability judgment module is used for determining the automobile stable state trend; the CarSim vehicle model is used for outputting theautomobile actual state quantity, and the actual state quantity comprises the longitudinal velocity, the yaw velocity and the side slip angle of the automobile; and the model prediction controller optimizes and solves the front wheel turning angle of the automobile and inputs the front wheel turning angle to the CarSim vehicle model, so that the yaw velocity and the side slip angle of the automobile are tracked and controlled.
一种基于稳定状态预测的汽车侧向稳定性提升方法,其特征在于,该方法包括期望横摆角速度与质心侧偏角计算模块、稳定性判定模块、模型预测控制器和CarSim车辆模型;期望横摆角速度与质心侧偏角计算模块用于确定期望的汽车横摆角速度与质心侧偏角;稳定性判定模块用于确定汽车的稳定状态趋势;CarSim车辆模型用于输出汽车的实际状态量,包括汽车纵向速度,横摆角速度和质心侧偏角;模型预测控制器优化求解出汽车的前轮转角并输入给CarSim车辆模型,实现汽车的横摆角速度与质心侧偏角跟踪控制。
Automobile lateral stability improving method based on stable state prediction
一种基于稳定状态预测的汽车侧向稳定性提升方法
2021-03-30
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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