The present invention relates to an apparatus for controlling the speed of a vehicle on the basis of information on a plurality of preceding vehicles driving in the same lane, which is obtained by using vehicle-to-everything (V2X) communication; and a method thereof. According to the present invention, a cooperative adaptive cruise control (CACC) system, which is provided in a user vehicle and controls a driving speed of the user vehicle, comprises: a communication unit for receiving vehicle information including location and driving information from surrounding vehicles; an information collection unit for collecting vehicle information on the surrounding vehicles and vehicle information on a user vehicle by using sensors provided in the user vehicle; and a control unit for determining a preceding vehicle and a vehicle preceding the preceding vehicle by using the sensors provided in the user vehicle, selecting a target vehicle (hereinafter, referred to as a first target vehicle) to be followed by the user vehicle and a target vehicle (hereinafter, referred to as a second target vehicle) followed by the target vehicle on the basis of vehicle information on the preceding vehicle and the vehicle preceding the preceding vehicle and the vehicle information on the surrounding vehicles obtained by the communication unit, and controlling the driving speed of the user vehicle on the basis of speed information on the selected first and second target vehicles. According to the present invention, a driver can be provided with a safe driving environment by determining a driving speed of his/her vehicle with driving information on first and second target vehicles.

    본 발명은 V2X(Vehicle to Everything) 통신을 이용하여 획득한 동일 차선을 주행하는 복수의 선행차량에 대한 정보를 바탕으로 차량의 속도를 제어하는 장치 및 방법에 관한 것으로, 개시된 자차량에 구비되고 자차량의 주행 속도를 제어하는 협조 적응 순항 제어(Cooperative Adaptive Cruise Control; 이하 CACC) 시스템은 주변차량들로부터 위치 및 주행정보를 포함하는 차량정보를 수신하는 통신부, 자차량에 구비된 센서들을 이용하여 주변 차량의 차량 정보 및 상기 자차량의 차량정보를 수집하는 정보수집부, 상기 자차량에 구비된 센서들을 이용하여 선행차량 및 선선행차량을 결정하고, 상기 선행차량 및 선선행차량의 차량정보와 통신부에서 획득한 주변차량들의 차량정보를 바탕으로 상기 자차량이 추종하기 위한 목표차량(이하 제1 목표차량) 및 상기 목표차량이 추종하는 목표차량(이하 제2 목표차량)을 선정하고, 선정된 상기 제1 목표차량 및 제2 목표차량의 속도정보를 바탕으로 상기 자차량의 주행 속도를 제어하는 제어부를 포함할 수 있다. 본 발명은 제1 목표차량 및 제2 목표차량의 주행정보를 이용하여 자차량의 주행 속도를 결정함으로써 운전자에게 안전한 주행 환경을 제공할 수 있다.


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    Title :

    APPARATUS AND METHOD FOR CONTROLLING SPEED IN CACC SYSTEM


    Additional title:

    협조 적응형 순항 제어 시스템의 속도 제어 장치 및 방법


    Contributors:

    Publication date :

    2020-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    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



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