METHOD TO BE PERFORMED BY A CONTROL DEVICE FOR AN ENGINE, AND ENGINE

    公开(公告)号:EP3514359A1

    公开(公告)日:2019-07-24

    申请号:EP19152313.3

    申请日:2019-01-17

    IPC分类号: F02D41/40 F02D35/02

    摘要: To effectively suppress an intense knock and improve reliability of an engine. A method for predicting occurrence of a knock with a predetermined intensity or higher (intense knock) in an engine 1 that burns an air-fuel mixture of gasoline fuel is provided. Pressure in a combustion chamber 17 (cylinder inner pressure) is detected in an initial stage of combustion. The cylinder inner pressure is compared with a preset reference value SV to determine whether or not the cylinder inner pressure exceeds the reference value SV during the course of the combustion. When the cylinder inner pressure exceeds the reference value SV, it is predicted that the intense knock occurs before an end of the combustion.

    Method, system and computer program product for controlling an internal combustion engine
    2.
    发明公开
    Method, system and computer program product for controlling an internal combustion engine 有权
    Verfahren,System and Computerprogrammprodukt zum Steuern eines Verbrennungsmotors

    公开(公告)号:EP2096284A1

    公开(公告)日:2009-09-02

    申请号:EP09002672.5

    申请日:2009-02-25

    IPC分类号: F02D41/00 F02D13/02

    摘要: Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.

    摘要翻译: 提供了用于控制内燃机的方法和系统。 一个示例性方法可以包括在气缸循环期间稍后关闭进气门比从空气进气通道引入气缸的空气量将最大化的时刻,以及在气缸循环期间较早的期望空气量 引擎进入汽缸增加,而发动机在给定的发动机转速下运行。 该方法还可以包括当汽缸循环期间较早地关闭进气门,因为当被引入气缸的所需量的空气处于最大值时,发动机转速增加。

    Internal combustion engine control method, internal combustion engine system and corresponding computer program product
    3.
    发明公开
    Internal combustion engine control method, internal combustion engine system and corresponding computer program product 有权
    Verbrennungsmotorsteuerungsverfahren,Verbrennungsmotorsystem und entsprechendes Computerprogrammprodukt

    公开(公告)号:EP2096281A1

    公开(公告)日:2009-09-02

    申请号:EP09002673.3

    申请日:2009-02-25

    摘要: A system and method of controlling an internal combustion engine are provided. The method includes closing an intake valve at a timing in a first range, which is before a maximum charge closing timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized at a given engine speed, during a cylinder cycle when a desired amount of air to be inducted into said cylinder is less than or equal to a predetermined air amount at the given engine speed. The method further includes closing said intake valve at a timing in a second range, which is after said maximum charge closing timing and separated from said first range during a cylinder cycle, when a desired amount of air to be inducted into said cylinder is greater than said predetermined air amount at the given engine speed.

    摘要翻译: 提供了一种控制内燃机的系统和方法。 该方法包括在第一范围内的定时关闭进气门,该第一范围在最大充气关闭正时之前,在最大充气关闭正时期间,在气缸内,从进气通道引入气缸的空气量将在给定发动机转速下最大化 当要引入所述气缸的期望量的空气小于或等于在给定发动机速度下的预定空气量时循环。 所述方法还包括在所述最大充气关闭正时之后的第二范围内的时刻关闭所述进气门,并且当所述气缸内的所需空气量大于所述气缸时,所述进气门在气缸循环期间与所述第一范围分离。 在给定的发动机转速下所述预定的空气量。

    Internal combustion engine of spark-Ignition direct-injection type and fuel injection method thereof
    6.
    发明公开
    Internal combustion engine of spark-Ignition direct-injection type and fuel injection method thereof 有权
    Direkteinspritzungs-Ottomotor und Kraftstoffeinspritzverfahrendafür

    公开(公告)号:EP2105595A1

    公开(公告)日:2009-09-30

    申请号:EP09004213.6

    申请日:2009-03-24

    IPC分类号: F02B23/10 F02M61/18

    摘要: A multi-hole injector (15) directly injects fuel into a combustion chamber (5). Intake air is introduced into the combustion chamber (5) through intake ports (6) to provide tumble flow in the combustion chamber (5). A cavity (3d) is formed in a part of the top surface of a piston (3) which is eccentric to the exhaust side. In the intake stroke, fuel injection ends in a downstroke of a piston (3). When the crank angle is 100 degrees after the top dead center in the intake stroke at which the fuel injection ends, a most downward lower spray collides with a part of the top surface (3a) of the piston (3) which ranges on the intake side from the edge on the exhaust side of the cavity. A most upward upper spray does not come into contact with a spark plug (13). Thus, the fuel injection can enhance the tumble flow to promote homogeneous dispersion of fuel-air mixture in the combustion chamber (5).

    摘要翻译: 多孔喷射器(15)直接将燃料喷射到燃烧室(5)中。 吸入空气通过进气口(6)引入燃烧室(5),以在燃烧室(5)中提供滚筒流。 在与排气侧偏心的活塞(3)的上表面的一部分中形成空腔(3d)。 在进气行程中,燃料喷射在活塞(3)的下冲程中结束。 当燃料喷射结束的进气行程中的上止点之后的曲柄角为100度时,最下面的下喷射与活塞(3)的上表面(3a)的在进气口上的一部分相撞 侧面处于空腔排气侧的边缘。 最向上的上喷雾器不与火花塞(13)接触。 因此,燃料喷射可以增强滚筒流动,以促进燃料 - 空气混合物在燃烧室(5)中的均匀分散。

    ENGINE
    7.
    发明公开
    ENGINE 审中-公开

    公开(公告)号:EP3514360A1

    公开(公告)日:2019-07-24

    申请号:EP19152318.2

    申请日:2019-01-17

    IPC分类号: F02D41/40 F02D35/02

    摘要: To effectively suppress an intense knock and improve reliability of an engine. The engine includes: a combustion chamber 17 defined in a cylinder 11 by a piston 3; a fuel supply device 61 that supplies fuel containing gasoline into the combustion chamber 17; an ECU 8 having knock occurrence prediction means 80 for predicting occurrence of a knock; and an injector 6 that injects the fuel into the combustion chamber 17. When the knock occurrence prediction means 80 predicts occurrence of an intense knock with a predetermined intensity or higher, the injector 6 injects the fuel into the combustion chamber 17 within a period before the burned mass fraction reaches 50% after a start of combustion.

    Control of spark ignited internal combustion engine
    10.
    发明公开
    Control of spark ignited internal combustion engine 有权
    Steuerung eines Ottoverbrennungsmotors

    公开(公告)号:EP2169202A1

    公开(公告)日:2010-03-31

    申请号:EP09012289.6

    申请日:2009-09-28

    IPC分类号: F02D41/30 F02D41/40 F02D13/02

    摘要: There is provided a method of controlling a spark ignited internal combustion engine having a fuel injector 53 which injects fuel directly into its combustion chamber 17. The method comprises injecting fuel so as to complete the fuel injection by an early compression stroke during a cylinder cycle when a speed of the engine is a first speed. The method further comprises injecting a first stage fuel so as to complete the first stage fuel injection by an early compression stroke during a cylinder cycle and injecting a second stage fuel in a late compression stroke during the cylinder cycle when an engine speed is a second speed that is less than the first speed. An amount of the second stage fuel is greater than an amount of said first stage fuel. Accordingly, any of the first and second stage fuels may not be pre-ignited before the spark ignition.

    摘要翻译: 提供了一种控制具有燃料喷射器53的火花点火内燃机的方法,燃料喷射器53将燃料直接喷射到其燃烧室17中。该方法包括喷射燃料以便在汽缸循环期间通过早期压缩冲程来完成燃料喷射, 发动机的速度是第一速度。 该方法还包括喷射第一级燃料,以便在汽缸循环期间通过早期压缩冲程完成第一级燃料喷射,并且在汽缸循环期间在发动机转速为第二速度时在后期压缩冲程中喷射第二级燃料 这是小于第一速度。 第二级燃料的量大于所述第一级燃料的量。 因此,在火花点火之前,第一和第二级燃料中的任何一种都不能被预先点燃。