The invention discloses a curve driving speed control method based on an adaptive cruise function, and the main design concept of the method is as follows: judging whether the current driving scene of a vehicle is a curve scene or not according to the current transverse acceleration and yaw velocity of the vehicle, and determining the current first target acceleration of the vehicle; a safe turning speed threshold value is determined according to the curvature radius of the curve and the inherent parameters of the vehicle, then a second target acceleration is determined according to the curvature radius of the curve and the inherent parameters of the vehicle, and the current acceleration value is adjusted to be the first target acceleration through the self-adaptive cruise function; and controlling the vehicle to dynamically adjust the vehicle speed in real time according to the second target acceleration so as to ensure the safe turning of the vehicle. According to the method, the vehicle speed can be dynamically adjusted in the self-adaptive cruise inner mode, the passing efficiency of the self-adaptive cruise mode on the curve is improved, the curve passing performance is perfected, the quit frequency of the self-adaptive cruise function is reduced, and the user experience effect is remarkably optimized.
本发明公开了一种基于自适应巡航功能的弯道行驶车速控制方法,本发明的主要设计构思在于,根据车辆的当前横向加速度和横摆角速度判断当前车辆所处驾驶场景是否为弯道场景,并明确车辆当前的第一目标加速度,根据弯道的曲率半径和车辆固有参数确定安全过弯速度阈值,再根据弯道的曲率半径和车辆固有参数确定第二目标加速度,自适应巡航功能将当前的加速度值调整为第一目标加速度,再根据第二目标加速度控制车辆进行实时的车速动态调整,确保车辆安全过弯。本发明能够在自适应巡航内模式下动态调整车速,提高了自适应巡航模式在弯道时的通行效率,完善弯道通行的性能,并减少自适应巡航功能退出次数,显著优化了用户体验效果。
Curve driving speed control method based on self-adaptive cruise function
基于自适应巡航功能的弯道行驶车速控制方法
2024-09-27
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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