CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    11.
    发明申请
    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置

    公开(公告)号:US20100263638A1

    公开(公告)日:2010-10-21

    申请号:US12678876

    申请日:2008-10-31

    IPC分类号: F02B33/00

    摘要: An internal combustion engine control apparatus that prevents an abrupt change in the air amount at the time of supercharger switching. The control apparatus enters a small turbo operating state in which a small turbocharger is mainly operative, during relatively low-rotation-speed and low-load side, and enters a large turbo operating state in which a large turbocharger is mainly operative, in a relatively high-rotation-speed and high-load. In the small turbo operating state, the control apparatus can exercise charging efficiency enhancement control by using a scavenging effect. Before switching from the small turbo operating state to the large turbo operating state, the control apparatus predicts whether the large turbocharger will build up its boost pressure quickly or slowly. When slow boost pressure is predicted, the control apparatus exercises charging efficiency enhancement control to provide a low degree of charging efficiency enhancement.

    摘要翻译: 一种防止在增压器切换时的空气量突然变化的内燃机控制装置。 控制装置进入小型涡轮增压器主要在较低转速和低负载侧运转的小型涡轮增压器运行状态,并进入较大的涡轮增压器运行状态,大型涡轮增压器主要运行, 高转速和高负载。 在小涡轮操作状态下,控制装置可以通过使用清扫效果来进行充电效率提高控制。 在从小涡轮操作状态切换到大涡轮操作状态之前,控制装置预测大型涡轮增压器是否将快速或缓慢地增加其增压压力。 当预测到缓慢的增压压力时,控制装置进行充电效率提高控制,以提供低充电效率的提高。

    CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
    12.
    发明申请
    CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机控制装置及控制方法

    公开(公告)号:US20100204903A1

    公开(公告)日:2010-08-12

    申请号:US12668743

    申请日:2008-08-06

    IPC分类号: F02D43/00 F01L1/34

    摘要: A control apparatus for an internal combustion engine (10) includes intake valve control means (50). The internal combustion engine (10) includes a variable intake valve operating mechanism (66) that changes a valve opening characteristic of an intake valve (64), and rich combustion is performed in the internal combustion engine (10) to control an exhaust gas purification catalyst (24) disposed in an exhaust passage (18). The intake valve control means (50) controls the valve opening characteristic of the intake valve (64) to increase a flow rate of intake air in an early stage of an intake stroke when the rich combustion is performed, as compared to when non-rich combustion is performed.

    摘要翻译: 一种用于内燃机(10)的控制装置,包括进气阀控制装置(50)。 内燃机(10)包括改变进气门(64)的开阀特性的可变进气门操作机构(66),并且在内燃机(10)中进行丰富燃烧以控制排气净化 设置在排气通道(18)中的催化剂(24)。 当进行浓燃烧时,进气阀控制装置(50)控制进气门(64)的开阀特性,以增加进气冲程早期进气的流量,与不富 进行燃烧。

    Sequential turbocharger system for an internal combustion engine
    13.
    发明授权
    Sequential turbocharger system for an internal combustion engine 失效
    用于内燃机的顺序涡轮增压系统

    公开(公告)号:US5142866A

    公开(公告)日:1992-09-01

    申请号:US717881

    申请日:1991-06-17

    摘要: A sequential turbocharger system for an internal combustion engine with an exhaust gas recirculation system. The sequential system includes a large-volume turbocharger and a small-volume turbocharger, which are arranged in series in the direction of the flow of gases. A bypass passageway is connected to an exhaust pipe to thereby bypass the turbine of the small-volume turbocharger, and an exhaust switching valve is arranged in the bypass passageway for controlling the flow of exhaust gas to the turbine of the small-volume turbocharger. The EGR system includes an exhaust gas recirculation passageway for introducing an amount of exhaust gas into the intake pipe of the engine. The exhaust gas for recirculation is taken out from the intake pipe at a position located between the turbines of the small-volume and large-volume turbochargers.

    摘要翻译: 一种用于具有废气再循环系统的内燃机的顺序涡轮增压器系统。 顺序系统包括大体积涡轮增压器和小容量涡轮增压器,其沿气体流动的方向串联布置。 旁通通路连接到排气管,从而绕过小体积涡轮增压器的涡轮,并且排气切换阀布置在旁路通道中,用于控制到小容量涡轮增压器的涡轮机的排气流。 EGR系统包括用于将排气量引入发动机的进气管中的废气再循环通道。 用于再循环的废气在位于小体积涡轮增压器和大容积涡轮增压器的涡轮机之间的位置处从进气管中取出。

    Exhaust gas purification system for internal combustion engine
    16.
    发明授权
    Exhaust gas purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号:US08418446B2

    公开(公告)日:2013-04-16

    申请号:US12740250

    申请日:2008-11-11

    摘要: Disclosed is a technology that enables better reduction of NOx stored in an NOx catalyst in an exhaust gas purification system for an internal combustion engine. When NOx stored in an NOx catalyst is to be reduced, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to a target air-fuel ratio by decreasing the air-fuel ratio of the exhaust gas discharged from the internal combustion engine. In doing so, if the temperature of the NOx catalyst is not lower than a specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while bringing the combustion state into low temperature combustion. On the other hand, if the temperature of the NOx catalyst is lower than the specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while decreasing the quantity of EGR gas in a cylinder so that the amount of generated smoke is kept within an allowable range.

    摘要翻译: 公开了一种能够更好地还原内燃机的排气净化系统中的NOx催化剂中存储的NOx的技术。 当减少NOx吸收剂中存储的NOx时,通过降低从内燃部排出的废气的空燃比,将NOx催化剂周围的环境气体的空燃比降低到目标空燃比 发动机。 在这样做时,如果NOx催化剂的温度不低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时使燃烧状态进入低温燃烧 。 另一方面,如果NOx催化剂的温度低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时减少EGR气体的量 使得产生的烟雾量保持在容许范围内。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    19.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化系统

    公开(公告)号:US20100229536A1

    公开(公告)日:2010-09-16

    申请号:US12740250

    申请日:2008-11-11

    IPC分类号: F02M25/06 F01N3/10

    摘要: Disclosed is a technology that enables better reduction of NOx stored in an NOx catalyst in an exhaust gas purification system for an internal combustion engine. When NOx stored in an NOx catalyst is to be reduced, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to a target air-fuel ratio by decreasing the air-fuel ratio of the exhaust gas discharged from the internal combustion engine. In doing so, if the temperature of the NOx catalyst is not lower than a specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while bringing the combustion state into low temperature combustion. On the other hand, if the temperature of the NOx catalyst is lower than the specific temperature, the air-fuel ratio of the ambient atmosphere around the NOx catalyst is decreased to the target air-fuel ratio while decreasing the quantity of EGR gas in a cylinder so that the amount of generated smoke is kept within an allowable range.

    摘要翻译: 公开了一种能够更好地还原内燃机的排气净化系统中的NOx催化剂中存储的NOx的技术。 当减少NOx吸收剂中存储的NOx时,通过降低从内燃部排出的废气的空燃比,将NOx催化剂周围的环境气体的空燃比降低到目标空燃比 发动机。 在这样做时,如果NOx催化剂的温度不低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时使燃烧状态进入低温燃烧 。 另一方面,如果NOx催化剂的温度低于特定温度,则NOx催化剂周围环境气氛的空燃比降低到目标空燃比,同时减少EGR气体的量 使得产生的烟雾量保持在容许范围内。

    Method of determining fluctuations in indicated mean effective pressure
of engine and apparatus therefor
    20.
    发明授权
    Method of determining fluctuations in indicated mean effective pressure of engine and apparatus therefor 失效
    确定发动机及其设备的平均有效压力波动的方法

    公开(公告)号:US4525781A

    公开(公告)日:1985-06-25

    申请号:US305352

    申请日:1981-09-24

    摘要: A method of and an apparatus for measuring fluctuations in the indicated mean effective pressure of an engine from a deviation of the mean pressure or from an unbiased variance (mean square) of the mean pressure obtained from the deviation in the mean pressure by utilizing a deviation of the mean pressure becomes substantially identical with a deviation of the indicated mean effective pressure or an unbiased variance (mean square) of this mean pressure becomes substantially identical with an unbiased variance (mean square) of the indicated mean effective pressure in a cylinder of the engine. This deviation of the mean pressure is calculated from detected changes in the rotational speed of the engine.

    摘要翻译: 根据平均压力的偏差或平均压力偏差的平均偏差的偏差(均方根),通过利用偏差来测量发动机指示的平均有效压力的波动的方法和装置, 平均压力的平均压力的变化基本上与所指示的平均有效压力的偏差或该平均压力的无偏差方差(均方根)变得基本相同,该平均压力与所述平均压力的圆柱体中的所示平均有效压力的无偏差方差 发动机。 根据检测到的发动机转速的变化计算平均压力的这种偏差。