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公开(公告)号：KR101416366B1
公开(公告)日：2014-07-08
申请号：KR1020120110942
申请日：2012-10-05
CPC classification number: F02D41/3082 , F02D41/042 , F02D41/3845 , F02D2009/0245 , F02D2200/101
Abstract: 본 발명은 엔진의 시동이 오프(Off) 되는지 여부를 판단하여 상기 엔진의 시동이 오프(Off) 되는 경우 상기 고압펌프의 연료 흡입밸브(Inlet valve) 작동을 소정 시간 동안 유지시킴으로써 저압펌프 측으로 연료가 역류되는 것을 방지하여 차량의 NVH를 개선시킬 수 있는 가솔린 직분사 엔진의 연료 제어 시스템 및 방법에 관한 것이다.
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公开(公告)号：KR1020140044684A
公开(公告)日：2014-04-15
申请号：KR1020120110942
申请日：2012-10-05
CPC classification number: F02D41/3082 , F02D41/042 , F02D41/3845 , F02D2009/0245 , F02D2200/101
Abstract: The present invention relates to a system and a method for fuel control of a gasoline direct injection engine. The present invention is capable of improving the noise, vibration, and harshness of a vehicle. By determining whether the engine of a vehicle is turned on or off, and, when the engine is turned off, the inlet valve of a high-pressure pump can be operated for a predetermined amount of time, so as to prevent fuel from flowing backward to a low-pressure pump. [Reference numerals] (AA) Start; (BB) Starting Off?; (CC) Maintain the operation of an inlet valve, reduce the operational speed of the inlet valve; (DD) Rotation number of an engine = 0?; (EE) Release the operation of the inlet valve; (S10) General driving
Abstract translation: 本发明涉及汽油直喷发动机的燃料控制系统和方法。 本发明能够改善车辆的噪音，振动和粗糙度。 通过确定车辆的发动机是否被接通或关闭，并且当发动机关闭时，高压泵的入口阀可以操作预定的时间量，以防止燃料向后流动 到低压泵。 （附图标记）（AA）开始; （BB）开始？ （CC）保持进气阀的运行，降低进气阀的运行速度; （DD）发动机的转数= 0？ （EE）释放入口阀的操作; （S10）一般驾驶
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