The present invention relates to technology for providing downshift information suitable for engine behavior by estimating engine behavior due to a decrease in vehicle speeds during coasting driving of a vehicle. According to the present invention, disclosed are a coasting driving control method for a vehicle and a system therefor, wherein a virtual engine RPM for a current driving state is calculated using an engine RPM, a vehicle speed, and gear information when entering coasting driving according to a neutral clutch, and a downshift command signal is output when the virtual engine RPM is less than a coasting engine RPM which is larger than an idle RPM.

    본 발명은 차량의 코스팅 주행 중, 차속 감소에 따른 엔진 거동을 추정하여 엔진 거동에 적합한 다운시프트 정보를 제공하는 기술에 관한 것으로, 본 발명에서는, 클러치 중립에 따른 코스팅 주행 진입시, 엔진RPM과, 차속 및 기어단 정보를 이용하여 현재 주행상태에 대한 가상의 엔진RPM을 산출하고; 상기 가상 엔진RPM이 아이들RPM보다 소정값 큰 코스팅 엔진RPM 미만시, 기어단의 다운시프트 명령신호를 출력하는 것을 특징으로 하는 차량용 코스팅 주행 제어방법 및 시스템이 소개된다.


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    Title :

    COASTING DRIVING CONTROL METHOD AND SYSTEM FOR VEHICLE


    Additional title:

    차량용 코스팅 주행 제어방법 및 시스템


    Contributors:
    WON CHAN HEE (author) / BYUN JUNG SUP (author) / NAM SANG WOOK (author) / LEE KWAN HO (author) / PARK SEONG KYU (author)

    Publication date :

    2020-12-10


    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 / F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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