The invention discloses a self-adaptive cruise control method and system and an electric vehicle, and relates to the technical field of intelligent driving, and the method comprises the steps: collecting an image of a road in front of a current vehicle, estimating and predicting the speed, direction and change of the vehicle in front and the state change of the road in front, and then calculating and outputting a state vector and a covariance matrix of the environment in front; acquiring information of surrounding vehicles and surrounding roads, constructing a dynamic interactive net, and calculating and outputting a surrounding environment state vector; a front environment state vector, a covariance matrix and a surrounding environment state vector are input, a self-adaptive cruise strategy is made, and the expected speed and the expected direction of the current vehicle are output; the acceleration, the steering angle and the braking force of the current vehicle are controlled according to the expected speed and the expected direction, and the technical problems that in the prior art, an adaptive cruise control system is coordinated according to the front vehicle information, and accuracy and safety are low can be solved.
本发明公开了一种自适应巡航控制方法、系统及电动汽车,涉及智能驾驶技术领域,该方法包括:采集当前车辆前方的道路图像,估算和预测前方车辆的速度、方向和变化以及前方道路的状态变化,再计算输出前方环境状态向量和协方差矩阵;获取周围车辆和周围道路的信息,构建动态交互网,计算输出周围环境状态向量;输入前方环境状态向量和协方差矩阵以及周围环境状态向量,制定自适应巡航策略,输出当前车辆的期望速度和期望方向;通过期望速度和期望方向控制当前车辆的加速度、转向角度以及制动力度,本发明能够解决现有技术中通过根据前方车辆信息协调自适应巡航控制系统,准确度和安全性低的技术问题。
Self-adaptive cruise control method and system and electric vehicle
一种自适应巡航控制方法、系统及电动汽车
2024-05-28
Patent
Electronic Resource
Chinese
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