Engine control device
    1.
    发明授权
    Engine control device 失效
    发动机控制装置

    公开(公告)号:US5187935A

    公开(公告)日:1993-02-23

    申请号:US839063

    申请日:1992-02-19

    摘要: An engine control system comprising a variable valve actuating mechanism for an engine which may consists of a mechanism capable of varying valve timing, a variable capacity supercharger which may consists of a turbocharger provided with moveable vanes for varying a cross sectional area of an exhaust gas passage leading to a turbine wheel, and a control unit for controlling a valve actuating operation of the valve actuating mechanism and a capacity varying operation of the variable capacity supercharger. The capacity of the supercharger is controlled by taking into account the operating conditions of the valve actuating mechanism. Thus, the control unit is capable of achieving a precise and prompt control action, and, by appropriately determining the control plan, it is possible to increase the maximum output of the engine and/or to reduce strain on the engine.

    摘要翻译: 一种发动机控制系统,包括用于发动机的可变气门致动机构,该可变气门致动机构可由能够改变气门正时的机构组成;可变容量增压器,其可由涡轮增压器组成,涡轮增压器设置有用于改变排气通道的横截面积的可移动叶片 通向涡轮机叶轮,以及用于控制阀致动机构的阀致动操作的控制单元和可变容量增压器的容量变化操作。 通过考虑阀致动机构的运行条件来控制增压器的容量。 因此,控制单元能够实现精确且及时的控制动作,并且通过适当地确定控制计划,可以增加发动机的最大输出和/或减小发动机的应变。

    Method of controlling supercharging pressure in internal combustion
engines
    2.
    发明授权
    Method of controlling supercharging pressure in internal combustion engines 失效
    控制内燃机增压压力的方法

    公开(公告)号:US4891947A

    公开(公告)日:1990-01-09

    申请号:US288303

    申请日:1988-12-22

    摘要: A method of controlling supercharging pressure in an internal combustion engine, wherein the supercharging pressure is controlled by controlling a control amount for operating a supercharging pressure control device. The control amount is controlled in feedback control mode responsive to the difference between the actual value of the supercharging pressure and a desired value thereof when the supercharging pressure is in a steady state, and at the same time a learned value of the correction value is obtained by calculating values of same applied during the feedback control. The control amount is controlled in open loop control mode based upon the learned value when the supercharging pressure is in a transient state. The calculation of the learned value is inhibited when a predetermined condition is satisfied during the steady state. The predetermined condition is satisfied when the desired value of the supercharging pressure is set to a different value than a normal value set during the steady state.

    Exhaust gas purifying system for internal combustion engine
    5.
    发明授权
    Exhaust gas purifying system for internal combustion engine 失效
    内燃机排气净化系统

    公开(公告)号:US6112520A

    公开(公告)日:2000-09-05

    申请号:US146139

    申请日:1998-09-03

    摘要: In an exhaust system of the internal combustion engine, there are provided, in this order from upstream, a three-way catalyst, an adsorbent-catalyst containing at least zeolite in its composition and capable of absorbing hydrocarbons, an electrically heated catalyst containing at least platinum in its composition, and a catalyst containing at least palladium in its composition. The electrically heated catalyst can effectively purify low boiling-point HC of paraffinic hydrocarbon which has been desorbed from the adsorbent-catalyst after about 20 seconds from the start of the engine. On the other hand, the catalyst can effectively purify high boiling-point HC of aromatic hydrocarbon which has been desorbed from the adsorbent-catalyst after about 80 seconds from the start of the engine. When the catalyst is an electrically heated catalyst, it is energized after the energization of the other electrically heated catalyst is ended and the supply of electric power can hence be minimized.

    摘要翻译: 在内燃机的排气系统中,从上游开始依次提供三元催化剂,至少含有沸石组成并能够吸收烃的吸附剂催化剂,至少含有电催化剂 其组成中的铂,以及其组成中至少含有钯的催化剂。 电加热的催化剂可以有效地净化从发动机启动约20秒后从吸附剂催化剂脱附的链烷烃的低沸点HC。 另一方面,催化剂可以有效地净化从发动机开始起约80秒后从吸附剂催化剂脱附的芳烃的高沸点HC。 当催化剂是电加热的催化剂时,在另一个电加热的催化剂的通电结束之后,其被激励,因此可以使电力的供应最小化。

    Valve operation control device for internal combustion engine
    6.
    发明授权
    Valve operation control device for internal combustion engine 失效
    内燃机用阀门操作控制装置

    公开(公告)号:US4899701A

    公开(公告)日:1990-02-13

    申请号:US247153

    申请日:1988-09-21

    IPC分类号: F01L13/00 F01L1/26 F02D13/02

    摘要: A valve operating control device for an internal combustion engine having a valve operating mode changing mechanism for switching the opening/closing operation of an intake or exhaust valve between a low-speed operation mode corresponding to a low-speed operation of the engine and a high-speed operation mode corresponding to a high-speed operation of the engine. A control device controls the operation of the valve operation mode changing mechanism according to the rotational speed of the engine for shifting the valve operation mode changing mechanism from the high-speed mode to the low-speed mode where the output torque of the engine is the same in the low- and high-speed operation modes of the valve operation mode changing mechanism and for shifting the valve operation mode changing mechanism from the low-speed operation mode to the high-speed operation mode at a second rotational speed that is higher than the first rotational speed.

    摘要翻译: 一种用于内燃机的气门操作控制装置,其具有用于在与发动机的低速运转相对应的低速运转模式和高速运转之间切换进气门或排气门的开闭动作的阀运行方式变更机构 对应于发动机的高速运转的速度运行模式。 控制装置根据用于将气门动作模式切换机构从高速模式向发动机的输出转矩为低速模式的低速模式的发动机的转速控制阀运行模式切换机构的动作 在阀操作模式改变机构的低速和高速操作模式下相同,并且以比第二转速高的速度将阀操作模式改变机构从低速操作模式转换到高速操作模式 第一转速。

    Method of controlling intake air quantity for internal combustion engines
    7.
    发明授权
    Method of controlling intake air quantity for internal combustion engines 失效
    控制内燃机进气量的方法

    公开(公告)号:US4572141A

    公开(公告)日:1986-02-25

    申请号:US684688

    申请日:1984-12-21

    摘要: A method of controlling the quantity of supplementary air being supplied to an internal combustion engine having first and second control valves arranged, respectively, in first and second auxiliary air passages bypassing the throttle valve for on-off control of the opening areas of the respective auxiliary air passages. When the engine is operating in a particular operating condition, the first and second control valves are selectively actuated in response to the detected value of atmospheric pressure encompassing the engine in such a manner that the sum of the opening areas of the first and second auxiliary air passages increases as the detected value of the atmospheric pressure decreases. The engine is determined to be operating in the particular operating condition when it is in a cranking condition, when a predetermined period of time has not yet elapsed after the engine has got out of a cranking condition, or when the engine is in a warming-up condition. Preferably, the engine includes a third control valve arranged in a third auxiliary air passage bypassing the throttle valve, and adapted to increase the opening area of the third auxiliary air passage with a decrease in the engine temperature for controlling the supplementary air quantity to be supplied to the engine through the third auxiliary air passage to an appropriate value when the engine is operating in a warming-up condition at a predetermined reference atmospheric pressure.

    摘要翻译: 一种控制供给内燃机的辅助空气量的方法,所述内燃机具有分别布置在绕过节流阀的第一辅助空气通道和第二辅助空气通道中的第一和第二控制阀,用于对各辅助件的开口区域进行开关控制 空气通道。 当发动机在特定操作状态下运行时,第一和第二控制阀响应于围绕发动机的大气压力的检测值被选择性地启动,使得第一和第二辅助空气的开口面积之和 随着大气压力的检测值降低,通道增加。 当发动机处于起动状态时,当发动机处于起动状态之后或者当发动机处于升温状态时还没有经过预定时间段时,发动机被确定为在特定操作条件下操作, up状态。 优选地,发动机包括配置在旁通节流阀的第三辅助空气通路中的第三控制阀,并且适于随着发动机温度的降低而增加第三辅助空气通道的开口面积,以控制要供应的辅助空气量 当发动机在预定参考大气压力的预热条件下操作时,通过第三辅助空气通道将发动机提供给适当的值。

    Air-fuel ratio feedback control system for internal combustion engines,
capable of achieving proper air-fuel ratios from the start of the engine
    8.
    发明授权
    Air-fuel ratio feedback control system for internal combustion engines, capable of achieving proper air-fuel ratios from the start of the engine 失效
    用于内燃机的空燃比反馈控制系统,能够从发动机起动实现适当的空燃比

    公开(公告)号:US4570599A

    公开(公告)日:1986-02-18

    申请号:US715755

    申请日:1985-03-25

    IPC分类号: F02B1/04 F02D41/14 F02D45/00

    CPC分类号: F02D41/1491 F02B1/04

    摘要: An air-fuel ratio feedback control system for use with an internal combustion engine, which is adapted to control the air-fuel ratio of a mixture being supplied to the engine, by the use of a first coefficient variable in response to the output of an exhaust gas concentration sensor arranged in the exhaust system of the engine when the engine is operating in an operating condition other than particular operating conditions, and by the use of a second coefficient which is a mean value of values of the first coefficient obtained during the above operating condition other than the particular operating conditions when the engine is operating in one of the particular operating conditions, for replacing the first coefficient with the second coefficient. Storage means is provided for storing and holding the value of the second coefficient even when the engine is inoperative.

    摘要翻译: 一种与内燃机一起使用的空燃比反馈控制系统,其适于通过响应于所述发动机的输出使用第一系数变量来控制供应给发动机的混合物的空燃比 排气浓度传感器,其在发动机在特定的运转条件以外的运行状态下运转时,配置在发动机的排气系统中,通过使用第二系数,该第二系数是上述中获得的第一系数的值的平均值 当发动机在特定操作条件之一下操作时,除了特定操作条件之外的操作条件,以用第二系数替换第一系数。 即使在发动机不起作用的情况下,也存储和保持第二系数的值的存储装置。

    Idling speed feedback control method having fail-safe function for
abnormalities in functioning of crank angle position-detecting system
of an internal combustion engine
    9.
    发明授权
    Idling speed feedback control method having fail-safe function for abnormalities in functioning of crank angle position-detecting system of an internal combustion engine 失效
    具有用于内燃机曲柄角位置检测系统功能异常的故障安全功能的怠速反馈控制方法

    公开(公告)号:US4531490A

    公开(公告)日:1985-07-30

    申请号:US619789

    申请日:1984-06-12

    摘要: An idling speed control method which is adapted to detect by detecting means predetermined rotational angle positions of an internal combustion engine having supplementary air supply control means that regulates the quantity of supplementary air being supplied to the engine, and to control the ratio of operating duty of the supplementary air supply control means to an interval of time at which pulses of a signal indicative of the predetermined rotational angle positions are generated, in a feedback manner responsive to the difference between actual idling engine speed and desired idling speed. When an abnormality is detected in the detecting means, which includes a sensor for sensing the predetermined crank angle positions, a maximum quantity of supplementary air is supplied to the engine by operating the supplementary air quantity control means to its operating limit. The supplementary air supply control means may comprise either (1) a solenoid valve disposed in a supplementary air passage, one end of which communicates with an intake passage of the engine at a location downstream of a throttle valve arranged in the intake passage and the other end communicates with the atmosphere, or (2) a negative pressure-operated means disposed for operating the throttle valve to open or close in response to negative pressure in the intake passage at a zone downstream of the throttle valve, and a negative pressure control means for controlling the magnitude of negative pressure in the intake passage acting upon the negative pressure-operated means.

    摘要翻译: 一种空转速度控制方法,其适于通过检测装置来检测具有辅助空气供给控制装置的内燃机的预定旋转角度位置,所述附加空气供应控制装置调节供应给发动机的补充空气量的量,并且控制 补充空气供给控制装置以响应于实际怠速发动机速度和期望怠速之间的差异的反馈方式,产生指示预定旋转角度位置的信号的脉冲的时间间隔。 当在检测装置中检测到异常时,该检测装置包括用于检测预定曲柄角位置的传感器,通过将辅助空气量控制装置运行到其运行极限,向发动机提供最大量的辅助空气。 辅助空气供给控制装置可以包括(1)设置在辅助空气通道中的电磁阀,其一端在布置在进气通道中的节气门下游的位置处与发动机的进气通道连通,而另一端 端部与大气连通,或者(2)负压操作装置,用于响应于在节流阀下游的进气通道中的负压而操作节流阀以打开或关闭;以及负压控制装置 用于控制作用在负压操作装置上的进气通道中的负压的大小。

    Idling rpm feedback control method for internal combustion engines
    10.
    发明授权
    Idling rpm feedback control method for internal combustion engines 失效
    内燃机怠速转速反馈控制方法

    公开(公告)号:US4491107A

    公开(公告)日:1985-01-01

    申请号:US479217

    申请日:1983-03-28

    摘要: An idling rpm feedback control method for controlling the quantity of supplementary air being supplied to an internal combustion engine, in a feedback manner, responsive to the difference between actual engine rpm and the desired idling rpm. When the engine rpm drops to a predetermined rpm being the upper limit of the desired idling rpm, the above feedback control is initiated. When the engine is decelerated with the throttle valve fully closed, and before the feedback control is started, the supplementary air quantity is controlled in decelerating mode in a predetermined manner while the engine speed drops from a predetermined rpm larger than the upper limit of the desired idling rpm to the same upper limit. In case deceleration is continued without disengagement of the power transmission means of the engine, even if the engine rpm drops below the above upper limit of the desired idling rpm, deceleration mode control of the quantity of supplementary air is continued until the power transmission means is disengaged.

    摘要翻译: 一种怠速转速反馈控制方法,用于响应于实际发动机转速和所需怠速转速之间的差异,以反馈方式控制供给内燃机的辅助空气量。 当发动机转速下降到所需怠速转速的上限的预定转速时,开始上述反馈控制。 当发动机在节流阀完全关闭的情况下减速,并且在反馈控制开始之前,辅助空气量以预定的方式以减速模式被控制,同时发动机速度从大于期望的上限的预定转速下降 空转转到相同的上限。 在发动机的动力传递装置的脱离的情况下进行减速的情况下,即使发动机转速低于上述所需怠速转速的上限,继续进行辅助空气量的减速模式控制,直到动力传递机构为 脱离