Automated vehicle road model definition system

A road-model-definition system (10) suitable for an automated-vehicle includes a lidar-unit (14) and a controller (20). The lidar-unit (14) is suitable to mount on a host-vehicle (12). The lidar-unit(14) is used to provide a point-cloud (16) descriptive of an area (18) proximate to the host-vehicle (12). The controller (20) is in communication with the lidar-unit (14). The controller (20) is configured to: select ground-points (26) from the point-cloud (16) indicative of a travel-surface (28), tessellate (36) a portion of the area (18) that corresponds to the travel-surface (28) to define a plurality of cells (38), determine an orientation (42) of each cell (38) based on the ground-points (26) within each cell (38), define a road-model (40) of the travel-surface (28) based on the orientation (42) of the cells (38), and operate the host-vehicle (12) in accordance with the road-model (40). 种适于自动车辆的道路模型定义系统(10)，包括激光雷达单元(14)和控制器(20)。激光雷达单元(14)适于安装在本车辆(12)上。激光雷达单元(14)用于提供描述本车辆(12)附近的区域(18)的点云(16)。控制器(20)与激光雷达单元(14