The technology relates to determining general weather conditions affecting the roadway around a vehicle, and how such conditions may impact driving and route planning for the vehicle when operating in an autonomous mode. For instance, the on-board sensor system may detect whether the road is generally icy as opposed to a small ice patch on a specific portion of the road surface (1702). The system may also evaluate specific driving actions taken by the vehicle and/or other nearby vehicles (1704, 1706, 1708, 1710). Based on such information, the vehicle's control system is able to use the resultant information to select an appropriate braking level or braking strategy (1714). As a result, the system can detect and respond to different levels of adverse weather conditions. The on-board computer system may share road condition information with nearby vehicles (1612, 1614) and with remote assistance (1604), so that it may be employed with broader fleet planning operations.
该技术涉及确定影响车辆周围道路的一般天气状况,以及当在自主模式下操作时,这些状况可能如何影响车辆的驾驶和路线规划。例如,车载传感器系统可以检测道路是否普遍结冰,而不是道路表面的特定部分上的结冰区(1702)。该系统还可以评估由车辆和/或其他附近车辆(1704、1706、1708、1710)采取的特定驾驶动作。基于这种信息,车辆的控制系统能够使用结果信息来选择适当的制动级别或制动策略(1714)。因此,系统可以检测和响应不同级别的不利天气状况。车载计算机系统可以与附近车辆(1612、1614)和远程辅助(1604)共享道路状况信息,使得其可以被用于更广泛的车队规划操作。
DETECTING GENERAL ROAD WEATHER CONDITIONS
检测一般道路天气状况
2021-07-30
Patent
Elektronische Ressource
Chinesisch
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 / G01S RADIO DIRECTION-FINDING , Funkpeilung / G01W METEOROLOGY , Meteorologie / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen |