The invention discloses a vehicle distance control method and device for an electric vehicle and an electric vehicle. The method comprises the following steps of obtaining a distance between the electric vehicle and a preceding vehicle or a barrier; obtaining relative vehicle speed and relative acceleration between the electric vehicle and the preceding vehicle or the barrier according to the distance between the electric vehicle and the preceding vehicle or the barrier; calculating a collision avoidance time according to the distance and relative vehicle speed between the electric vehicle and the preceding vehicle or the barrier; judging a safety state grade of the electric vehicle according to the collision avoidance time and the relative acceleration; and controlling the electric vehicle according to the safety state grade so as to realize an active vehicle distance control function. The vehicle distance control method disclosed by the embodiment of the invention can intelligently and actively control the vehicle distance without being additionally provided with a control system and an executing mechanism so that the driving safety is ensured and user experience is greatly improved.
Vehicle distance control method and device for electric vehicle and electric vehicle
2016-01-27
Patent
Elektronische Ressource
Englisch
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 / 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 |
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