In one embodiment, the invention describes a method of providing advance braking warning before an ADV reaches a point where the ADV is expected to brake. The method enables brake lights to be turned on before actual braking occurs, thus providing trailing vehicles more time to respond. According to the method, a trajectory is generated at a starting point. The trajectory includes a number of discrete points that the ADV is to follow. One or more discrete points are identified from the number of discrete points where the ADV is expected to brake based on previous driving statistics and calculated decelerations. At a predetermined time prior to reaching each of the identified discrete points, the ADV can turn on its brake lights to warn trailing vehicles that the ADV is about to brake so that the trailing vehicle can start to respond earlier.
Early brake light warning system for autonomous driving vehicle
2022-05-10
Patent
Elektronische Ressource
Englisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / 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 / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen |
EARLY BRAKE LIGHT WARNING SYSTEM FOR AUTONOMOUS DRIVING VEHICLE
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