The method to control conversion of a driving mode of a hybrid vehicle of the present invention comprises: a step in which a controller calculates a system demand power which is demanded by a device included in the hybrid vehicle; a step in which the controller calculates a standard power; and a step in which, when the system demand power is greater than the standard power, the controller controls the combination of an engine clutch and converts the driving mode of the hybrid vehicle from an EV mode into an HEV mode. The system demand power is the value obtained by adding a driver demand power and the power demanded by an auxiliary load device of the hybrid vehicle. The standard power can be the power when the state of charge (SOC) of a battery, which provides power to the device of the hybrid vehicle, maintains a normal level. The present invention aims to provide a method and a device to control the driving mode of a hybrid vehicle, which is able to provide a method to determine when to enter the HEV mode in which the engine power is connected to a motor.
하이브리드 차량의 주행 모드 변환 제어 방법은, 제어기가 하이브리드 차량에 포함된 장치가 요구하는 시스템 요구 동력(power)을 계산하는 단계와, 제어기가 기준 동력을 계산하는 단계와, 시스템 요구 동력이 기준 동력보다 클 때, 제어기가 엔진 클러치가 결합되도록 제어하여 하이브리드 차량의 주행 모드가 전기차 모드(EV mode)로부터 하이브리드 전기차 모드(HEV mode)로 변환되도록 제어하는 단계를 포함한다. 시스템 요구 동력은 운전자 요구 동력과 하이브리드 차량의 보조부하 장치가 요구하는 동력을 합산한 값이고, 기준 동력은 하이브리드 차량의 장치에 동력을 제공하는 배터리의 SOC(State Of Charge)가 정상(normal) 영역을 유지할 때의 동력일 수 있다.
Method and device for controlling driving mode conversion of hybrid vehicle
하이브리드 차량의 주행 모드 변환 제어 방법 및 그 제어 장치
2017-03-13
Patent
Electronic Resource
Korean
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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