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    Ignition timing controller for spark-ignition internal combustion engine using estimated cylinder wall temperature
    1.
    发明授权
    Ignition timing controller for spark-ignition internal combustion engine using estimated cylinder wall temperature 失效
    火花点火内燃机点火正时控制器采用估计气缸壁温度

    公开(公告)号：US5150300A

    公开(公告)日：1992-09-22

    申请号：US742525

    申请日：1991-08-07

    申请人： Yoshiaki Danno ,  Kazuhide Togai ,  Hiromitsu Ando ,  Jun Takemura ,  Eiichi Koujina ,  Ichiyo Kojima

    发明人： Yoshiaki Danno ,  Kazuhide Togai ,  Hiromitsu Ando ,  Jun Takemura ,  Eiichi Koujina ,  Ichiyo Kojima

    IPC分类号： F02B1/04 ,  F02P5/15 ,  F02P5/152

    CPC分类号： F02P5/152 ,  F02P5/1502 ,  F02B1/04 ,  Y02T10/46

    摘要： An ignition timing controller is furnished for use in a spark-ignition internal combustion engine. The controller includes a device for setting the ignition timing of the engine in accordance with the state of operation of the engine and another device for actuating an ignition system on the basis of the ignition timing set by the ignition timing setting device. The ignition timing setting device is constructed of a device for estimating the wall temperature of a combustion chamber of the engine from a variable, which indicates the quantity of combustion energy of the engine, and another device for calculating the ignition timing from the wall temperature of the combustion chamber estimated by the wall temperature estimating device.

    摘要翻译： 点火正时控制器被配备用于火花点火内燃机。 控制器包括根据发动机的操作状态和根据由点火正时设定装置设定的点火正时启动点火系统的另一装置来设定发动机点火正时的装置。 点火正时设定装置由用于从表示发动机的燃烧能量的变量的变量估计发动机的燃烧室的壁温以及从壁温度计算点火正时的另一装置构成的装置 燃烧室由壁面温度估算装置估计。

    In-cylinder injection type internal combustion engine
    7.
    发明授权
    In-cylinder injection type internal combustion engine 有权
    缸内喷射式内燃机

    公开(公告)号：US06386173B1

    公开(公告)日：2002-05-14

    申请号：US09559270

    申请日：2000-04-27

    申请人： Shigeo Yamamoto ,  Kazuyoshi Nakane ,  Hiroaki Miyamoto ,  Dai Tanaka ,  Jun Takemura ,  Hiromitsu Ando

    发明人： Shigeo Yamamoto ,  Kazuyoshi Nakane ,  Hiroaki Miyamoto ,  Dai Tanaka ,  Jun Takemura ,  Hiromitsu Ando

    IPC分类号： F02B1700

    CPC分类号： F02D41/3023 ,  F02D41/024 ,  F02D41/1479 ,  F02D41/3064 ,  Y02T10/26

    摘要： An electronic control unit (40) for controlling an internal combustion engine drive executes a first operation mode for injecting a fuel in a suction stroke while making an air/fuel ratio feedback control, when a demand for improving output characteristics is made in a medium/high load drive state of the engine. In response to a demand for raising the temperature of a catalyst, moreover, the first operation mode is switched to a second operation mode in which the fuel is injected in a compression stroke while making an air/fuel ratio feedback control performing a predetermined air/fuel ratio in the vicinity of a stoichiometric air/fuel ratio as a target value. At the time of switching to each of these operation modes, moreover, the air/fuel ratio correction coefficient of the air/fuel ratio feedback is increased/decreased to promote a shift of the output turning point of an O2 sensor (22) thereby to prevent such an instability of the air/fuel ratio control as is caused by the shift of the target air/fuel ratio accompanied with the switching to each operation mode. As a result, the temperature of an exhaust purifying catalyst (3) is raised in the second operation mode for performing the compression stroke injection stably in the vicinity of the stoichiometric air/fuel ratio, so that the exhaust cleaning performance can be improved and so that the output characteristics can be improved by executing the first operation mode.

    摘要翻译： 用于控制内燃机驱动的电子控制单元（40）在进行空/燃比反馈控制的同时执行用于在吸入冲程中喷射燃料的第一操作模式，当在介质/ 发动机的高负载驱动状态。 此外，响应于提高催化剂的温度的要求，第一操作模式切换到第二操作模式，其中在压缩冲程中喷射燃料，同时使空燃比反馈控制执行预定的空气/ 作为目标值的化学计量空燃比附近的燃料比。 此外，在切换到这些操作模式的每一个时，空燃比反馈的空燃比校正系数被增加/减小，以促进O2传感器（22）的输出转向点的偏移，从而 防止由于伴随着切换到每个操作模式的目标空气/燃料比的偏移而引起的空气/燃料比控制的这种不稳定性。 结果，在用于在理论空燃比附近稳定地进行压缩冲程喷射的第二操作模式中，排气净化催化剂（3）的温度升高，从而可以提高排气净化性能 可以通过执行第一操作模式来改善输出特性。