(EN) The invention relates to smart tow. A system and method for providing visual assistance through a graphic overlay super-imposed on a back-up camera image for assisting a vehicle operator when backing up a vehicle to align a tow ball with a trailer tongue. The method includes providing camera modeling to correlate the camera image in vehicle coordinates to world coordinates, where the camera modeling provides the graphic overlay to include a tow line having a height in the camera image that is determined by an estimated height of the trailer tongue. The method also includes providing vehicle dynamic modeling for identifying the motion of the vehicle as it moves around a center of rotation. The method then predicts the path of the vehicle as it is being steered including calculating the center of rotation.
(ZH)
本发明涉及智能牵引。一种用于通过重叠在倒退摄像机图像上的图形叠加提供视觉辅助的系统与方法，用于当使车辆倒退以使牵引球头与挂车舌对准时帮助车辆操作者。该方法包括提供摄像机建模，以使车辆坐标中的摄像机图像与世界坐标关联，其中，摄像机建模提供图形叠加，以包括在摄像机图像中具有由挂车舌的估计高度确定的高度的拖曳线。该方法还包括提供车辆动态建模，用于当车辆围绕旋转的中心移动时识别车辆的运动。该方法然后预测车辆当被转向时的路径，包括计算旋转的中心。