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    • 14. 发明授权
    • Exhaust gas recirculation control system
    • 废气再循环控制系统
    • US4177777A
    • 1979-12-11
    • US824316
    • 1977-08-12
    • Kimiomi MaruyamaYoshitaka HataAkihiro Ohnishi
    • Kimiomi MaruyamaYoshitaka HataAkihiro Ohnishi
    • F02D21/08F02M25/07F02M25/06
    • F02D41/0072F02M26/47F02M26/57F02D2041/0075Y02T10/47
    • An exhaust gas recirculation (EGR) control system for an internal combustion engine, in which an EGR control valve including a vacuum-operated actuator governs the flow of recirculated exhaust gas according to the admission of air into the engine. To accomplish the control with high precision, the control system includes a flow sensor which provides an electrical signal representing the volume flow rate of air in the induction passage and a control circuit for controlling the magnitude of vacuum for the EGR valve through the operation of an electromagnetic valve based on the signal from the flow sensor. Optionally the control system has another flow sensor which provides an electrical signal representing the volume flow rate of recirculated exhaust gas to the control circuit to accomplish a feedback control.
    • 一种用于内燃机的废气再循环(EGR)控制系统,其中包括真空操作的致动器的EGR控制阀根据进入发动机的空气的入口来控制再循环废气的流动。 为了高精度地进行控制,控制系统包括一个流量传感器,该流量传感器提供一个表示该进气通道中的空气的体积流量的电信号,以及一个控制电路,用于通过操作一个 电磁阀基于来自流量传感器的信号。 可选地,控制系统具有另一个流量传感器,该流量传感器提供表示再循环废气到控制电路的体积流量的电信号以完成反馈控制。
    • 17. 发明授权
    • Spark-advance control apparatus for internal combustion engine
    • 用于内燃机的火花前进控制装置
    • US4015565A
    • 1977-04-05
    • US586214
    • 1975-06-12
    • Shigeo AonoKenji IkeuraYoshitaka Hata
    • Shigeo AonoKenji IkeuraYoshitaka Hata
    • F02P5/15F02P1/00
    • F02P5/15Y02T10/46
    • An apparatus for controlling spark advance in an internal combustion engine of an automotive vehicle, characterized by a circuit arrangement which is operative to detect the angular speed of rotation of the engine output shaft in a digital fashion and produce digital signals responsive to changes in preselected operating conditions such as engine output speed and intake manifold vacuum for controlling the spark advance in accordance with predetermined schedules. The spark advance is thus controlled without being affected by negligible or incidental transient fluctuations in the operating conditions of the engine and the advance characteristics can be readily altered by varying the schedules on which the digital signals are produced.
    • 一种用于控制机动车辆的内燃机中的火花提前的装置,其特征在于一种电路装置,其可操作以数字方式检测发动机输出轴的旋转角速度,并响应于预选的操作的变化产生数字信号 诸如发动机输出速度和进气歧管真空的条件,用于根据预定的时间表来控制火花提前。 因此,火花提前被控制,而不受发动机工作状态的可忽略或偶然的瞬态波动的影响,并且通过改变产生数字信号的时间表可以容易地改变前进特性。