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    • 6. 发明公开
    • 가변 압축비 제어방법
    • 车辆可变压缩比控制方法
    • KR1020130047216A
    • 2013-05-08
    • KR1020110112102
    • 2011-10-31
    • 현대자동차주식회사
    • 박진우
    • F02D15/02F02D41/02F02B75/04F02D41/04
    • F02D15/02F02B75/04F02D41/0215F02D41/04F02D2700/03
    • PURPOSE: A variable compression ratio control method is provided to prevent the NVH(Noise, Vibration, and Harshness) deterioration of a device according to the variation of a compression ratio by implementing a variable compression ratio on the basis of a gear transmission stage number for lowering fuel injection amount and engine RPM in the transmission of a gear. CONSTITUTION: A variable compression ratio control method comprises the following steps: checking a current gear transmission stage while driving an engine(S10); confirming whether the gear transmission stage varies in the checking process(S20); determining the condition of a gear transmission stage number for changing is a high gear transmission stage number according to a high speed high load drive area(S30); and changing the compression ratio of a combustion chamber into a different compression ratio from the high gear transmission stage number according to the high speed high load drive area when satisfying the condition of the gear transmission stage number(S40). [Reference numerals] (AA) Low gear: High compression ratio; (BB) High gear: Low compression ratio; (S10) Operate an engine; (S20) Gear shifted?; (S30) Gear stage > A; (S40) Drive a compression ratio changer
    • 目的:提供一种可变压缩比控制方法,用于根据压缩比的变化来防止装置的NVH(噪声,振动和粗糙度)劣化,通过基于齿轮传动级数实现可变压缩比, 降低齿轮传动中的燃料喷射量和发动机转速。 构成:可变压缩比控制方法包括以下步骤:在驾驶发动机时检查当前齿轮传动级(S10); 确认在检查处理中齿轮传动阶段是否变化(S20); 根据高速高负载驱动区域,确定用于变化的齿轮传动级数的条件是高齿轮传动级数(S30); 并且当满足齿轮传动级数的条件(S40)时,根据高速高负载驱动区域将燃烧室的压缩比改变成与高齿轮传动级数不同的压缩比。 (标号)(AA)低档:高压缩比; (BB)高档:低压缩比; (S10)操作发动机; (S20)齿轮换档 (S30)齿轮级> A; (S40)驱动压缩比变更器