Engine control system
    61.
    发明授权
    Engine control system 有权
    发动机控制系统

    公开(公告)号:US08930118B2

    公开(公告)日:2015-01-06

    申请号:US13634740

    申请日:2011-03-30

    摘要: Disclosed is an engine control system which is designed to allow homogeneous-charge compression ignition combustion to be performed in an HCCI region (R) defined as an engine operating region including at least a partial-load range of an engine. In a low load zone (R1) of the HCCI region (R), a lift amount of an intake valve (11) is set to a first predetermined value, and an exhaust valve (12) is allowed to start being opened during an intake stroke at a given timing later than an opening timing of the intake valve (11). Further, in the medium load zone of the HCCI region, the lift amount of the intake valve (11) is gradually increased up to a second predetermined value greater than the first predetermined value, along with an increase in an engine load. The engine control system is capable of adequately controlling an amount of burned gas to be introduced into a cylinder, depending on the engine load to allow the HCCI combustion to be adequately performed in a wider engine load range.

    摘要翻译: 公开了一种发动机控制系统,其被设计成允许在定义为包括发动机的至少部分负载范围的发动机运行区域的HCCI区域(R)中执行均质充气压缩点火燃烧。 在HCCI区域(R)的低负荷区域(R1)中,进气门(11)的升程量被设定为第一预定值,并且允许排气门(12)在进气期间开始打开 在比进气门(11)的打开正时更短的给定时刻进行行程。 此外,在HCCI区域的中负荷区域中,随着发动机负荷的增加,进气门(11)的提升量逐渐增加到大于第一预定值的第二预定值。 发动机控制系统能够根据发动机负载来适当地控制要引入气缸的燃烧气体的量,以允许在较宽的发动机负载范围内适当地执行HCCI燃烧。

    Method for combustion mode transition
    62.
    发明授权
    Method for combustion mode transition 有权
    燃烧模式转换方法

    公开(公告)号:US08826871B2

    公开(公告)日:2014-09-09

    申请号:US13267029

    申请日:2011-10-06

    摘要: An internal combustion engine is selectably operable in one of homogeneous charge compression ignition (HCCI) mode with low lift intake and exhaust valve profiles and spark ignition (SI) mode with high lift intake and exhaust valve profiles. Transition from a current combustion mode to a desired combustion mode includes phase adjusting the one of the intake and exhaust valves exhibiting a greater effect upon an effective cylinder volume for a given phase adjustment in the desired combustion mode based upon a desired phasing for the desired combustion mode prior to lift adjusting the one of the intake and exhaust valves and adjusting the other of the intake and exhaust valves.

    摘要翻译: 内燃机可选择地以均匀充气压缩点火(HCCI)模式与低起升进气和排气阀轮廓以及具有高提升进气和排气阀轮廓的火花点火(SI)模式之一进行操作。 从当前燃烧模式转换到期望的燃烧模式包括相位调节进气门和排气门中的一个,对于期望的燃烧模式中的给定相位调节,对于有效气缸容积具有更大的影响,基于期望的燃烧所需的相位 在升降之前调节进气门和排气门之一并调整进气门和排气门中的另一个。

    CONTROL METHOD AND SYSTEM FOR OIL PUMP OF ENGINE PROVIDED WITH VARIABLE VALVE LIFT APPARATUS
    63.
    发明申请
    CONTROL METHOD AND SYSTEM FOR OIL PUMP OF ENGINE PROVIDED WITH VARIABLE VALVE LIFT APPARATUS 审中-公开
    发动机油泵的控制方法和系统,具有可变阀门提升装置

    公开(公告)号:US20140182547A1

    公开(公告)日:2014-07-03

    申请号:US14108143

    申请日:2013-12-16

    发明人: Hyoung Hyoun KIM

    IPC分类号: F02M39/00

    CPC分类号: F02D13/0207 Y02T10/18

    摘要: A method of controlling an oil pump of an engine with a variable valve lift apparatus includes: detecting the operation status of a vehicle; determining whether mode change conditions of a variable valve lift apparatus are satisfied; determining whether the mode change condition of the variable valve lift apparatus is a condition for changing from a low lift to a high lift; comparing whether the current oil hydraulic pressure is larger than the current necessary hydraulic pressure, when the mode change condition of the variable valve lift apparatus is a condition for changing from a low lift to a high lift; and increasing oil pressure by controlling the oil pump, when the current oil hydraulic pressure is not larger than the current necessary hydraulic pressure.

    摘要翻译: 一种用可变气门提升装置控制发动机的油泵的方法包括:检测车辆的运行状态; 确定是否满足可变气门提升装置的模式改变条件; 确定可变气门提升装置的模式改变状态是否是从低升程改变到高升程的条件; 当可变气门提升装置的模式改变状态是从低升程到高升程的状态时,比较当前油压是否大于当前所需的液压; 通过控制油泵,当目前的油压不大于当前必需的液压压力时,增加油压。

    Internal combustion engine
    69.
    发明授权
    Internal combustion engine 有权
    内燃机

    公开(公告)号:US08479509B2

    公开(公告)日:2013-07-09

    申请号:US12706846

    申请日:2010-02-17

    摘要: A method for operating an internal combustion engine with compression ignition or with spark ignition as a function of an operating point. A specific residual exhaust-gas quantity in the combustion space is set for compression ignition. The internal combustion engine is operated as a function of the operating point by an outlet cam, by which a first outlet opening phase and a second outlet opening phase take place. The second outlet opening phase commences during an inlet opening phase. At a first operating point in a compression-ignition mode, a residual exhaust-gas quantity in a combustion space is dimensioned as a function of a valve interference set between the inlet and the outlet valve during a charge exchange. At a second operating point in the compression-ignition mode the residual exhaust-gas quantity in the combustion space is dimensioned as a function of a duration of the second outlet opening phase.

    摘要翻译: 一种用压缩点火或火花点火作为工作点的功能的内燃机的操作方法。 燃烧空间中的特定残留废气量设定为压缩点火。 内燃机通过出口凸轮作为工作点的函数来操作,通过该出口凸轮进行第一出口开放阶段和第二出口开放阶段。 第二个出口开放阶段在入口打开阶段开始。 在压缩点火模式的第一工作点,燃料空间中的剩余废气量在充电交换期间被确定为在入口阀和出口阀之间设定的阀干涉的函数。 在压缩点火模式的第二工作点,燃烧空间中的剩余废气量作为第二出口开放阶段的持续时间的函数来确定。