A method for controlling the inertia driving of an environmentally friendly vehicle comprises the steps in which: a controller calculates a target vehicle speed in a deceleration event according to deceleration event information and the average road slope information of a road on which an environmentally friendly vehicle travels from the current location of the environmentally friendly vehicle to a target location corresponding to the deceleration event; the controller calculates a starting location for inertia driving control of the environmentally friendly vehicle according to road slope information that is greater than or equal to a first reference slope and less than or equal to a second reference slope at the current location, the current vehicle speed of the environmentally friendly vehicle, and the target vehicle speed; the controller calculates feedforward torque applied to a drive motor for inertia driving control after the starting location, according to the road slope information, the current vehicle speed, and the target vehicle speed at the current location; the controller calculates a transition location for switching from feedforward control for the inertia driving control of the environmentally friendly vehicle to feedback control for inertia driving control according to the road slope information, the current vehicle speed, and the target vehicle speed at the current location; the controller calculates feedback torque applied to the drive motor for inertia driving control after the transition location, according to the road slope information, the current vehicle speed, and the target vehicle speed at the current location; the controller operates an information provider to provide inertia driving guidance for the driver of the vehicle at the starting location; and the controller controls the drive motor from the starting location to the target location, in the off states of a brake pedal and an accelerator pedal, according to the feedforward torque and the feedback torque. Therefore, the method can improve fuel efficiency by accurately controlling the inertial driving of the environmentally friendly vehicle according to the slope of the road and the slope of a steel plate on which the environmentally friendly vehicle travels.

    친환경차량의 관성주행제어방법은 제어기에 의해 수행되고, 친환경 차량의 현재위치에서 감속이벤트에 대응하는 목표위치까지의 친환경차량이 주행하는 도로의 평균도로구배 정보와, 감속이벤트 정보에 따라 감속이벤트에서의 목표차속을 계산하는 단계와, 현재위치의 제1 기준구배 이상이고 제2 기준구배 이하인 도로구배 정보, 친환경차량의 현재차속, 및 목표차속에 따라 친환경차량의 관성주행 제어를 위한 시작위치를 계산하는 단계와, 현재위치의 도로구배 정보, 현재차속, 및 목표차속에 따라 시작위치 이후에 관성주행 제어를 위해 구동모터에 인가되는 피드포워드 토크를 계산하는 단계와, 현재위치의 도로구배 정보, 현재차속, 및 목표차속에 따라 친환경차량의 관성주행 제어를 위한 피드포워드 제어에서 관성주행 제어를 위한 피드백 제어로 전환되는 전환위치를 계산하는 단계와, 현재위치의 도로구배 정보, 현재차속, 및 목표차속에 따라 전환위치 이후에 관성주행 제어를 위해 구동모터에 인가되는 피드백 토크를 계산하는 단계와, 시작위치에서 차량의 운전자를 위한 관성주행 안내를 위해 정보제공기를 작동시키는 단계와, 피드포워드 토크 및 피드백 토크에 따라 브레이크 페달 및 액셀 페달의 오프 상태에서 시작위치로부터 목표위치까지 구동모터를 제어하는 단계를 포함한다.


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    Title :

    METHOD AND DEVICE FOR CONTROLLING INERTIA DRIVING OF ENVIRONMENTALLY FRIENDLY VEHICLE


    Additional title:

    친환경 차량의 관성 주행 제어 방법 및 그 제어 장치


    Contributors:
    HUH JEEWOOK (author) / SONG HANNAH (author)

    Publication date :

    2023-03-22


    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