Electronically controlled fuel injection system
    2.
    发明授权
    Electronically controlled fuel injection system 失效
    电子控制燃油喷射系统

    公开(公告)号:US4457283A

    公开(公告)日:1984-07-03

    申请号:US452095

    申请日:1982-12-22

    CPC分类号: F02D41/182 F02D41/105

    摘要: In an electronically controlled engine supplying fuel from a fuel injector near an intake port to an intake system, asynchronous acceleration fuel injection is carried out in relation to the secondary differential d.sup.2 X/dt.sup.2 of intake pipe pressure or intake air flow rate with respect to time t. Since the d.sup.2 X/dt.sup.2 increases rapidly and accurately after the start of acceleration of the engine, the asynchronous acceleration fuel injection can be carried out rapidly and accurately.

    摘要翻译: 在从进气口附近的燃料喷射器向进气系统供给燃料的电子控制发动机中,相对于进气管压力或进气流量相对于时间t的二次差分d2X / dt2,进行异步加速燃料喷射 。 由于在发动机加速开始之后d2X / dt2迅速而准确地增加,所以异步加速燃料喷射可以快速准确地进行。

    Air/fuel ratio feedback control for an internal combustion engine
    3.
    发明授权
    Air/fuel ratio feedback control for an internal combustion engine 失效
    内燃机的空燃比反馈控制

    公开(公告)号:US4556033A

    公开(公告)日:1985-12-03

    申请号:US583267

    申请日:1984-02-24

    CPC分类号: F02D41/1479

    摘要: A method and apparatus for performing air/fuel ratio feedback control for an internal combustion engine by comparing the results of the two comparisons; (a) comparing a determined (i.e., decision) value with a measured value detected by an oxygen sensor, and (b) comparing the determined value with a reference value, so as to determine if either is relatively large or small. Further included is an arrangement for determining whether the determined value coincides with the measured value as well as whether it coincides with the reference value, and then increasing or decreasing the determined value in accordance with the result of the determination (comparison), thereby correcting an abnormal condition of the determined (i.e., decision) value whenever the determined value is displaced from a normal condition due to injected random noise.

    摘要翻译: 一种用于通过比较两个比较的结果来对内燃机进行空燃比反馈控制的方法和装置; (a)将确定的(即决定)值与由氧传感器检测的测量值进行比较,和(b)将所确定的值与参考值进行比较,以便确定是否相对较大或较小。 进一步包括用于确定所确定的值是否与测量值一致以及它是否与参考值一致的装置,然后根据确定(比较)的结果来增加或减少所确定的值,由此校正 每当确定的值由于注入的随机噪声而从正常状态偏移时,确定的(即,决定)值的异常条件。

    Method of learn-controlling air-fuel ratio for internal combustion engine
    4.
    发明授权
    Method of learn-controlling air-fuel ratio for internal combustion engine 失效
    内燃机学习控制空燃比的方法

    公开(公告)号:US4539958A

    公开(公告)日:1985-09-10

    申请号:US606685

    申请日:1984-05-03

    CPC分类号: F02D41/1483 F02D41/2454

    摘要: In a method wherein a fuel injection time duration is allowed to perform a proportional-plus-integral action by the use of an air-fuel ratio feedback correction coefficient obtained from the output of an O.sub.2 sensor thereby to control an air-fuel ratio to a target air-fuel ratio, a correction value for allowing a mean value of the air-fuel ratio feedback correction coefficient to approach a predetermined value is varied every time the air-fuel ratio feedback correction coefficient skips a plurality of times, thereby to learn-control the air-fuel ratio of an air-fuel mixture to be a stoichiometric one.

    摘要翻译: 在通过使用从O 2传感器的输出获得的空燃比反馈校正系数允许燃料喷射持续时间来执行比例加积分动作的方法中,从而将空燃比控制为 每当空燃比反馈校正系数跳过多次时,改变使空燃比反馈校正系数的平均值接近预定值的校正值, 将空气 - 燃料混合物的空燃比控制为化学计量比。

    Control device for controlling air-fuel ratio and spark timing of an
integral combustion engine
    6.
    发明授权
    Control device for controlling air-fuel ratio and spark timing of an integral combustion engine 失效
    用于控制整体内燃机的空燃比和火花正时的控制装置

    公开(公告)号:US4587938A

    公开(公告)日:1986-05-13

    申请号:US731436

    申请日:1985-05-07

    摘要: A control device determining the air-fuel ratio in the leanest fashion or in the leaner fashion depending on the position of the throttle valve. The ignition timing is also determined in relation to the air-fuel ratio. The ignition timing is advanced when the air-fuel ratio is in the leanest fashion and the ignition timing is retarded with respect to the former timing when the air-fuel ratio is in the leaner fashion. The control device further causes a delay in change-over of the ignition timing between two timing patterns relative to the change-over of the air fuel ratio when the opening of the throttle valve is changed beyond the predetermined value.

    摘要翻译: 控制装置根据节流阀的位置以最小的方式或以更瘦的方式确定空燃比。 点火正时也相对于空燃比确定。 当空燃比处于较稀的方式时,当空燃比处于最小的方式时,点火正时相对于前一时刻延迟点火正时。 当节流阀的开度改变超过预定值时,控制装置进一步引起相对于空燃比转换的两个定时模式之间的点火正时的转换延迟。

    Apparatus for controlling ignition timing in an internal combustion
engine
    10.
    发明授权
    Apparatus for controlling ignition timing in an internal combustion engine 失效
    用于控制内燃机中点火正时的装置

    公开(公告)号:US4725955A

    公开(公告)日:1988-02-16

    申请号:US730582

    申请日:1985-05-06

    IPC分类号: F02D41/14 F02P5/15 F02M51/00

    摘要: Disclosed is an engine having an air-fuel ratio control apparatus for obtaining various air-fuel ratios, the range of which is between the stoichiometric air-fuel ratio or lower than that ratio and the high air-fuel ratio providing a very lean air-fuel mixture. A plurality of ignition timing maps is provided, these maps having a respective order of priority determined by the air-fuel ratio. During operation of the engine, parameters substantially related to the air-fuel ratio ranges are detected, and a map having the highest order of priority is selected from the maps which meet the engine parameters. The ignition timing is calculated from the selected map.

    摘要翻译: 公开了一种具有空燃比控制装置的发动机,其用于获得各种空燃比,其范围在理论空燃比或低于该比之间,高空燃比提供非常稀薄的空气 - 燃料混合物 提供了多个点火正时图,这些图具有由空燃比确定的各自的优先顺序。 在发动机运转期间,检测与空燃比范围基本相关的参数,并且从满足发动机参数的图中选择具有最高优先级顺序的地图。 从所选地图计算点火正时。