Research on intelligent vehicle longitudinal-vertical integrated control technology considering vehicle yaw and roll stability
To address the limitation of existing single-dimensional control systems designed for specific vehicle control requirements that fail to meet the safety demands during high-speed driving,an intelligent vehicle integrated control strategy considering both yaw and roll stability was proposed.The strategy involves analyzing the boundaries of vehicle yaw stability and the threshold of roll stability,utilizing parameters such as yaw rate,roll rate,and Lateral-Load Transfer Rate(LTR)as evaluation criteria for vehicle stability.It introduced lateral compensation yaw moment and vertical control weight distribution parameters to allocate the longitudinal braking moment and vertical active suspension force of the intelligent vehicle.Through simulation validation,the results demonstrated that the designed longitudinal-vertical integrated control strategy could enhance the overall yaw and roll stability of the vehicle,improve the tracking accuracy of the intelligent vehicle during trajectory tracking,and effectively enhance vehicle safety and comfort during driving.
intelligent vehicleyaw stabilityroll stabilityyaw momentactive suspension forceintegrated control
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