公开(公告)号：KR1020130060568A

公开(公告)日：2013-06-10

申请号：KR1020110126696

申请日：2011-11-30

Applicant: 현대자동차주식회사

Inventor： 조원진 ,  홍현준 ,  김영직 ,  이상무 ,  전제록

IPC: F02B75/32 ,  F02B75/12 ,  F02D17/02

CPC classification number: F02D15/02 ,  F02B75/32 ,  F02D17/02 ,  Y02T10/12

Abstract: PURPOSE: An internal combustion engine without a crank shaft is provided to solve decrease in fuel efficiency by variably operating a cylinder according to a vehicle condition. CONSTITUTION: An internal combustion engine without a crank shaft comprises an engine block(1), a power shaft(10), and a cylinder separator(30). The engine block is in a driving or dormant sate, and comprises a plurality of cylinders with a power system. The engine block comprises a cylinder head with a valve system for combustion exhaust and fuel supply, and comprises an oil pan at the lower part. A power shaft unit converts the power from the power system into engine output to be delivered to a transmission. The power from the power system is not converted into the engine output when the engine output is in a dormant state. The cylinder separator separates the power system from the power shaft unit by an engine control unit(60) which operates a plurality of cylinders. [Reference numerals] (AA) Vehicle information; (BB) Battery; (CC) Output Tb

Abstract translation: 目的：提供一种没有曲轴的内燃机，以通过根据车辆状况可变地操作气缸来解决燃油效率的降低。 构成：没有曲柄轴的内燃机包括发动机缸体（1），动力轴（10）和气缸分离器（30）。 发动机缸体处于驱动或休眠状态，并且包括具有动力系统的多个气缸。 发动机缸体包括具有用于燃烧排气和燃料供应的阀门系统的气缸盖，并且在下部包括油盘。 动力轴单元将来自动力系统的动力转换成发动机输出，以将其输送到变速器。 当发动机输出处于休眠状态时，来自动力系统的动力不会转换为发动机输出。 气缸分离器通过操作多个气缸的发动机控制单元（60）将动力系统与动力轴单元分离开。 （附图标记）（AA）车辆信息; （BB）电池; （CC）输出Tb

公开(公告)号：KR1020090058833A

公开(公告)日：2009-06-10

申请号：KR1020070125604

申请日：2007-12-05

Applicant: 현대자동차주식회사

Inventor： 홍현준

IPC: F02D41/14 ,  F02D41/04 ,  F02D45/00 ,  F02M55/02

CPC classification number: F02D41/14 ,  F02D41/04 ,  F02D41/2429 ,  F02D41/3809 ,  Y02T10/40

Abstract: A method for calculating an MDP(Minimum Drive Pulse) learning value of in a common rail engine system is provided to prevent increase of fuel consumption in a hardened injector by calculating the MDP learning value using the MDP learning value obtained at relatively low injection pressure. A method for calculating an MDP learning value of in a common rail engine system comprises the steps of: reading a MDP learning value corresponding to a first fuel injection pressure when a fuel injection pressure exceeds a reference value(S503); progressing to the next step if the read MDP learning value coincides with the initial MDP learning value(S505); reading the MDP learning value corresponding to the fuel injection pressure lower than the reference value, calculating the MDP learning value corresponding to the first fuel injection pressure using the read MDP learning value, and storing it(S507); reading the MDP learning value corresponding to the first fuel injection pressure after a fixed time(S509,S511); and progressing to the step 507 if the MDP learning value coincides with the previous MDP learning value and terminating the logic if not(S513).

Abstract translation: 提供了一种用于计算共轨发动机系统中的MDP（最小驱动脉冲）学习值的方法，以通过使用在相对低的注射压力下获得的MDP学习值计算MDP学习值来防止硬化喷射器中的燃料消耗的增加。 一种用于计算共轨发动机系统中的MDP学习值的方法，包括以下步骤：当燃料喷射压力超过参考值时，读取与第一燃料喷射压力相对应的MDP学习值（S503）; 如果读取的MDP学习值与初始MDP学习值一致，则进行下一步骤（S505）; 读取与低于基准值的燃料喷射压力对应的MDP学习值，使用读取的MDP学习值计算与第一燃料喷射压力对应的MDP学习值，并存储（S507）。 在固定时间之后读取对应于第一燃料喷射压力的MDP学习值（S509，S511）; 并且如果MDP学习值与先前MDP学习值一致并且如果不是终止逻辑，则前进到步骤507（S513）。