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    • 1. 发明授权
    • Idle speed control system for internal combustion engine
    • 内燃机空转速度控制系统
    • US6006723A
    • 1999-12-28
    • US897824
    • 1997-07-21
    • Kouichi AkaboriNobutaka TakahashiYoshitaka Deguchi
    • Kouichi AkaboriNobutaka TakahashiYoshitaka Deguchi
    • F02D9/02F02D29/04F02D31/00F02D41/08F02D41/16F02D43/00
    • F02D31/005F02D41/083
    • When an operation causing a decrease of the engine load is requested, for example, by switching off an air conditioner switch, an idle speed control system calculates a fuel decrease quantity from an engine load decrease quantity, and further calculates an air decrease quantity in accordance with a desired air fuel ratio after the engine load decrease, and the fuel decrease quantity. The control system decreases the air supply quantity to the engine by the air decrease quantity. Then, after the elapse of a preset time interval, the system controls the external load such as the air conditioner so as to reduce the engine load (for example, by turning off the air conditioner), and decrease the fuel injection quantity by the fuel decrease quantity. When the air conditioner is switched on, for example, the control system calculates a fuel increase quantity from the engine load increase, and further calculates an air increase quantity in accordance with the fuel increase quantity and a desired air fuel ratio after the engine load increase. Then, the control system controls the external load to increase the engine load, increases the fuel injection quantity and increases the air supply quantity.
    • 如果要求减少发动机负荷的动作,例如通过关闭空调开关,则怠速控制系统根据发动机负荷减少量来计算燃料减量量,进一步根据发动机负荷减少量来计算空气减少量 在发动机负荷减少之后具有期望的空燃比和燃料减少量。 控制系统通过空气减少量减少发动机的供气量。 然后,经过预设的时间间隔后,系统控制诸如空调的外部负载,以便减少发动机负载(例如通过关闭空调),并且减少燃料的燃料喷射量 减少量 例如,当空调机接通时,控制系统根据发动机负载增加来计算燃料增加量,并且还根据燃料增加量和发动机负荷增加后的期望空燃比计算空气增加量 。 然后,控制系统控制外部负载,增加发动机负荷,增加燃油喷射量,增加供气量。
    • 3. 发明授权
    • Engine rotation speed controller
    • 发动机转速控制器
    • US5697337A
    • 1997-12-16
    • US757846
    • 1996-11-27
    • Nobutaka TakahashiMakoto YamashitaYoshitaka Deguchi
    • Nobutaka TakahashiMakoto YamashitaYoshitaka Deguchi
    • F02D37/02F02D41/16F02D43/00F02D45/00F02P5/15
    • F02D37/02F02P5/1508F02D2250/12Y02T10/46
    • An engine rotation speed during idle running is feedback controlled to a target rotation speed. A basic ignition timing is set based on the rotation speed during idle running, and the ignition timing is feedback corrected based on a difference between a target rotation speed and a measured rotation speed. This feedback correction process and other processes including the setting of the basic ignition timing are separated. A high response ignition timing feedback control is performed by advancing the measuring timing of the rotation speed to a point earlier than the correction timing by at least the processing time required to perform the feedback correction process, and preferably by a value near the processing time. A high response fuel injection amount feedback control may also be performed by a similar process.
    • 怠速行驶期间的发动机转速被反馈控制到目标转速。 基于怠速行驶期间的转速设定基本点火正时,并且基于目标转速与测量转速之间的差反馈校正点火正时。 该反馈校正处理以及包括基本点火正时设定在内的其他处理被分离。 通过至少进行反馈校正处理所需的处理时间,优选地通过接近处理时间的值,将旋转速度的测量定时提前到比校正定时早的点来进行高响应点火定时反馈控制。 高响应燃料喷射量反馈控制也可以通过类似的过程执行。
    • 10. 发明授权
    • System and method for detecting engine knock in internal combustion
engines
    • 用于检测内燃机发动机爆震的系统和方法
    • US5092160A
    • 1992-03-03
    • US454540
    • 1989-12-21
    • Hiroyuki UedaNobutaka Takahashi
    • Hiroyuki UedaNobutaka Takahashi
    • G01H17/00F02D45/00F02P5/152F02P5/153G01L23/22
    • F02P5/152G01L23/225Y02T10/46
    • A system and method for detecting occurrence of engine knock in internal combustion engines are disclosed which include: at least one engine knock sensor installed in an appropriate position at each engine cylinder, a band pass filter for passing a particular component of an output signal from an engine knock sensor, a rectifier for rectifying the particular component of the output signal passed through the band pass filter and an integrator for integrating the rectified signal with a variable interval. A device is also provided whereby engine driving conditions are detected, the integration interval being varied according to engine driving conditions so that no overlap of the integration interval of one cylinder with the ignition timing of another occurs. The integrated value derived by the integrator is corrected according to the variable interval, and the occurrence of knock in synchronization with the corrected integrated value is verified.
    • 公开了一种用于检测内燃机中的发动机爆震发生的系统和方法,其包括:安装在每个发动机气缸的适当位置的至少一个发动机爆震传感器,用于将特定分量的输出信号从 发动机爆震传感器,用于整流通过带通滤波器的输出信号的特定分量的整流器和用于将整流信号与可变间隔积分的积分器。 还提供了一种装置,其中检测到发动机驱动条件,积分间隔根据发动机驱动条件而变化,使得一个气缸的积分间隔与另一气缸的积分间隔的重叠发生在另一气缸的点火正时之间。 根据可变间隔校正由积分器导出的积分值,并且验证与校正积分值同步的爆震的发生。