The invention discloses a yaw stability control system for a four-wheel independent drive electric vehicle. The yaw stability control system comprises an information acquisition module, an index calculation module, an expected value calculation module, a control mode selection module, a whole vehicle additional yaw moment calculation module and a torque distribution module. The information acquisition module is used for acquiring vehicle state parameters, road condition parameters and other parameters of the vehicle; the index calculation module is used for calculating a vehicle state index evaluation factor, a road condition index evaluation factor and a danger evaluation factor; the expected value calculation module is used for calculating a side slip angle expected value and a yaw velocity expected value; the control mode selection module is used for selecting a control mode of the whole vehicle additional yaw moment calculation module; the whole vehicle additional yawing moment calculation module is used for calculating the whole vehicle additional yawing moment for keeping the stable running of the vehicle; and the torque distribution module is used for calculating the expected torque of each wheel for realizing stability control.
本发明公开了一种四轮独立驱动电动汽车横摆稳定性控制系统,包括信息获取模块、指标计算模块、期望值计算模块、控制模式选择模块、整车附加横摆力矩计算模块、扭矩分配模块。信息获取模块用于获取车辆状态参数、路面情况参数和车辆其他参数;指标计算模块用于计算车辆状态指标评价因子、路面情况指标评价因子和危险评价因子;期望值计算模块用于计算质心侧偏角期望值和横摆角速度期望值;控制模式选择模块用于选择整车附加横摆力矩计算模块的控制模式;整车附加横摆力矩计算模块用于计算保持车辆稳定行使的整车附加横摆力矩;扭矩分配模块用于计算实现稳定性控制的各车轮期望扭矩。
Four-wheel independent drive electric automobile yaw stability control system
一种四轮独立驱动电动汽车横摆稳定性控制系统
2024-08-30
Patent
Electronic Resource
Chinese
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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