Variable air induction control system for internal combustion engine
    1.
    发明授权
    Variable air induction control system for internal combustion engine 失效
    内燃机可变空气感应控制系统

    公开(公告)号:US4841935A

    公开(公告)日:1989-06-27

    申请号:US111743

    申请日:1987-10-23

    IPC分类号: F02B27/02 F02D41/00 F02P5/152

    摘要: A variable air induction control system for an internal combustion engine. The engine intake passage is divided into a long and small diameter main passage and a short and large diameter auxiliary passage. The auxiliary passage is provided with a valve which is opened and closed to adjust the air flow rate. The system is arranged such that, in accordance with the cylinder pressure, the intake air passes through the main intake passage during low speed engine operation and through both the main and auxiliary passages during high speed engine operation, whereby the air induction efficiency (charging efficiency) is enhanced and the engine output increased. As knocking is more likely to occur when the air induction efficiency is high, the opening/closing of the valve is controlled depending on whether or not knocking occurs. Moreover, it may be arranged such that when knocking does occur, it is first coped with by retarding the ignition and if knocking cannot be eliminated in this way, the air intake is adjusted.

    摘要翻译: 一种用于内燃机的可变空气感应控制系统。 发动机进气通道分为长,小直径的主通道和短径和大直径的辅助通道。 辅助通道具有打开和关闭的阀,以调节空气流速。 该系统配置为:在高速发动机运转时,根据气缸压力,进气在低速发动机运转中通过主进气通道,并且在高速发动机运转期间通过主通道和辅助通道,由此空气感应效率(充电效率 )增强,发动机输出增加。 当空气感应效率高时,更可能发生爆震,根据是否发生爆震来控制阀的打开/关闭。 此外,也可以配置为在发生爆震时首先通过延迟点火进行处理,如果不能以这种方式消除爆震,则调节进气口。

    Method of and apparatus for controlling ignition timing in internal
combustion engine
    2.
    发明授权
    Method of and apparatus for controlling ignition timing in internal combustion engine 失效
    内燃机点火正时控制方法及装置

    公开(公告)号:US4796586A

    公开(公告)日:1989-01-10

    申请号:US74606

    申请日:1987-07-17

    IPC分类号: F02P5/152 F02P5/15

    CPC分类号: F02P5/1521 Y02T10/46

    摘要: A method of and an apparatus for controlling ignition timing in an internal combustion engine. When the ignition timing has been retarded for preventing knocking and the engine operation thereafter moves into a region of operation where knocking control is unnecessary with the retardation of the ignition timing still in effect, the ignition timing is slightly advanced once per predetermined number of firings. Since the ignition timing is gradually restored, engine output hunting is prevented. The advancement of the ignition timing is determined whether or not a prescribed wait period has passed. The period varies depending on an engine speed.

    摘要翻译: 一种用于控制内燃机中的点火正时的方法和装置。 当点火正时被阻止以防止爆震,并且发动机操作之后移动到仍然有效的点火正时延迟的不需要进行爆震控制的操作区域中时,点火正时在预定数量的点火时稍微提高一次。 由于点火正时逐渐恢复,因此防止发动机输出振动。 确定点火正时的提前是否已经过了规定的等待时间。 该期间根据发动机转速而变化。