Control system and method for an internal combustion engine
    7.
    发明授权
    Control system and method for an internal combustion engine 失效
    内燃机的控制系统和方法

    公开(公告)号:US06883476B1

    公开(公告)日:2005-04-26

    申请号:US10649973

    申请日:2003-08-28

    摘要: A control system for an internal combustion engine having a variable valve operating mechanism capable of varying at least one of a valve lift and an operation angle of an engine valve continuously is provided. The control system comprises a detecting device that detects an operating condition of the variable valve operating mechanism and produces a signal representative thereof, and a controller that controls the operating condition of the variable valve operating mechanism in response to the signal from the detecting device. The controller is programmed to determine whether an operation responsiveness of the variable valve operating mechanism is lowered based on the signal from the detecting device and vary operational characteristics of the variable valve operating mechanism when the operation responsiveness of the variable valve operating mechanism is lowered. A control method is also provided.

    摘要翻译: 提供一种具有能够连续地改变发动机气门的气门升程和操作角度中的至少一个的可变气门操作机构的内燃机的控制系统。 该控制系统包括检测装置,该检测装置检测可变气门操作机构的操作状态并产生代表其的信号;以及控制器,其响应于来自检测装置的信号来控制可变气门操作机构的操作状态。 控制器被编程为基于来自检测装置的信号来确定可变气门操作机构的操作响应性是否降低,并且当可变气门操作机构的操作响应性降低时改变可变气门操作机构的操作特性。 还提供了一种控制方法。

    Variable compression ratio system for internal combustion engine and method for controlling the system
    8.
    发明授权
    Variable compression ratio system for internal combustion engine and method for controlling the system 有权
    用于内燃机的可变压缩比系统和控制系统的方法

    公开(公告)号:US07059280B2

    公开(公告)日:2006-06-13

    申请号:US10692740

    申请日:2003-10-27

    IPC分类号: F02D45/00

    CPC分类号: F02D15/02 F02B75/048

    摘要: A variable compression ratio system for an internal combustion engine, including a variable compression ratio mechanism for continuously varying a compression ratio of the engine, the variable compression ratio mechanism including a control shaft rotatably moveable to a rotational position corresponding to the compression ratio, a hydraulic actuator driving the control shaft to the rotational position depending on operating conditions of the engine, a hydraulic pressure source mechanically driven by the engine to produce a hydraulic pressure supplied to the hydraulic actuator, and a hydraulic control for variably controlling the hydraulic pressure supplied to the hydraulic actuator on the basis of the engine operating conditions.

    摘要翻译: 一种用于内燃机的可变压缩比系统,包括用于连续改变发动机的压缩比的可变压缩比机构,包括可旋转地运动到与压缩比对应的旋转位置的控制轴的可变压缩比机构,液压 致动器根据发动机的运行状态将控制轴驱动到旋转位置,由发动机机械驱动的液压源,以产生供给到液压致动器的液压;以及液压控制器,用于可变地控制供给到 液压执行器在发动机运行条件的基础上。

    Internal combustion engine with variable valve control device
    10.
    发明授权
    Internal combustion engine with variable valve control device 失效
    具有可变气门控制装置的内燃机

    公开(公告)号:US06659054B2

    公开(公告)日:2003-12-09

    申请号:US10355100

    申请日:2003-01-31

    IPC分类号: F01L134

    摘要: An internal combustion engine comprises a variable valve control device that varies a lift degree of an intake valve, an air intake passage led to an intake port of the engine that is incorporated with the intake valve and a fuel injection valve arranged to inject fuel into the intake port. The fuel injection valve has a first injection mode wherein each fuel injection shot is entirely carried out during opening period of the intake valve and a second injection mode wherein each fuel injection shot entirely finishes prior to opening action of the intake valve. A control unit is further employed by the engine, which allows the fuel injection valve to select one of the first and second injection modes in accordance with the lift degree of intake valve effected by the variable valve control device.

    摘要翻译: 一种内燃机,包括可变阀控制装置,该可变阀控制装置改变进气门的升程,引导到与进气阀结合的发动机的进气口的进气通道,和配置成将燃料喷射到 进气口 燃料喷射阀具有第一喷射模式,其中在进气门的打开时段期间完全执行每个燃料喷射喷射,以及其中在进气门的打开动作之前每个燃料喷射喷射完全完成的第二喷射模式。 发动机进一步采用控制单元,该控制单元允许燃料喷射阀根据由可变气门控制装置进行的进气阀升程而选择第一和第二喷射模式之一。