METHOD FOR ENABLING VARIABLE COMPRESSION RATIO AND VARIABLE AIR-FUEL RATIO FOR INTERNAL COMBUSTION ENGINE

    公开(公告)号:EP3163056A4

    公开(公告)日:2018-02-14

    申请号:EP14895960

    申请日:2014-06-27

    Applicant: YANG ZENGLI

    Inventor: YANG ZENGLI

    Abstract: The present invention provides a method for realizing variable compression ratio and variable air-fuel ratio of an internal combustion engine, the method comprising the following steps: dividing an air intake volume in a cylinder into a first air intake volume and a second air intake volume, designing a compression ratio according to the first air intake volume and opening a throttle to enable the air intake volume to reach the first air intake volume; increasing the opening of the throttle to increase the air inflow to enable the second air intake volume to start the intake, the second air intake volume going beyond the first air intake volume, the compression ratio increasing with the increase of the air intake volume, the compression density of a fuel air mixture increasing with the increase of the compression ratio, and the air-fuel ratio reducing with the increase of the compression density of the fuel air mixture; and correcting, by an electronic control unit, a duration of ignition in real time according to a detonation signal fed back by a knock sensor, and controlling the fuel-injection quantity in real time to ensure the compression density required by the combustion of a lean fuel air mixture.

    INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME
    4.
    发明公开
    INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME 有权
    内燃机及其控制方法

    公开(公告)号:EP3168444A1

    公开(公告)日:2017-05-17

    申请号:EP16198544.5

    申请日:2016-11-11

    Inventor: D'EPIRO, Clino

    Abstract: Internal combustion engine comprising a plurality of cylinders with relative pistons, connected to a relative common drive shaft, said multitude of cylinders being divided into a first group and a second group of cylinders, in which consecutive ignition cycles alternate between the two groups of cylinders, the first group of cylinders being controlled to be always active, and the second group of cylinders being controlled to be active on request, the engine being characterised in that said first group of cylinders has a compression ratio different from a compression ratio of said second group of cylinders.

    Abstract translation: 内燃机包括具有相对活塞的多个气缸,所述多个气缸连接到相对共同的驱动轴,所述多个气缸分成第一组和第二组气缸,其中连续的点火循环在两组气缸之间交替, 所述第一组汽缸被控制为始终有效,并且所述第二组汽缸被控制为根据请求被激活,所述发动机的特征在于,所述第一组汽缸具有不同于所述第二组的压缩比的压缩比 的气瓶。

    VERFAHREN UND VORRICHTUNG ZUM STEUERN EINER BRENNKRAFTMASCHINE MIT EINEM VARIABLEN VERDICHTUNGSVERHÄLTNIS
    7.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUM STEUERN EINER BRENNKRAFTMASCHINE MIT EINEM VARIABLEN VERDICHTUNGSVERHÄLTNIS 审中-公开
    方法和装置用于控制内燃机用的可变压缩比

    公开(公告)号:EP2948663A1

    公开(公告)日:2015-12-02

    申请号:EP14703526.5

    申请日:2014-01-21

    Applicant: Audi AG

    Inventor: AZADEH, Reza

    Abstract: The invention relates to a method for operating an internal combustion engine in which a compression ratio is set to a setpoint compression ratio by means of an adjustment device, wherein in a normal operating mode of the internal combustion engine the setpoint compression ratio is determined as a function of an operating variable of the internal combustion engine. There is provision here that the internal combustion engine is at least temporarily operated in a prediction operating mode in which the setpoint compression ratio is determined on the basis of an anticipated estimated operating variable which is estimated on the basis of the instantaneous gradient of the operating variable over time. The invention also relates to an internal combustion engine.

    Abstract translation: 所述方法涉及确定开采于正常操作模式的内燃机的目标压缩比,对内燃发动机的操作参数因。 内燃发动机在预测模式下进行操作和目标压缩比是确定性的使用预期大小估计操作变量的所有这是基于工作参数随时间的当前倾斜度估计开采。 一个独立的claimsoft被包括在内燃发动机。

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