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    • 1. 发明授权
    • Ignition system for internal combustion engines
    • 内燃机点火系统
    • US4638785A
    • 1987-01-27
    • US827167
    • 1986-02-07
    • Takeshi MatsuiShunichi TakedaTomoatsu Makino
    • Takeshi MatsuiShunichi TakedaTomoatsu Makino
    • F02P3/045F02P3/05F02P5/08
    • F02P3/0453
    • An ignition system for an internal combustion engine is disclosed. The ignition system includes a timing signal detector responsive to the rotation speed of an engine to generate a pulse signal including a leading edge and a trailing edge corresponding to the ignition timing and having a predetermined duty cycle, a triangular wave generator for generating a triangular wave voltage synchronized with the trailing edge of the pulse signal, a voltage storing circuit for storing the voltage level of the triangular wave voltage in synchronism with the leading edge of the pulse signal, a voltage divider for dividing the stored voltage in the voltage storing circuit to generate a reference voltage, a comparator for comparing the reference voltage and the triangular wave voltage to detect a difference therebetween, a charging and discharging controller for correcting the stored voltage in the voltage storing circuit so as to reduce to zero the difference at the leading edge of the pulse signal, a threshold voltage generator for generating a threshold voltage which is offset from the stored voltage by an amount corresponding to the desired dwell time of an ignition coil, and an energization controller for controlling the dwell time of the ignition coil in accordance with the result of a comparison between the threshold voltage and the triangular wave voltage.
    • 公开了一种用于内燃机的点火系统。 点火系统包括响应于发动机的转速的定时信号检测器,以产生包括对应于点火正时的前沿和后沿并具有预定占空比的脉冲信号,用于产生三角波的三角波发生器 电压与脉冲信号的后沿同步;电压存储电路,用于与脉冲信号的前沿同步地存储三角波电压的电压电平;分压器,用于将存储电压中的存储电压分压到 产生参考电压,比较器,用于比较参考电压和三角波电压以检测它们之间的差;充放电控制器,用于校正电压存储电路中存储的电压,以便将前沿上的差减小到零 脉冲信号的阈值电压发生器,用于产生阈值电压w 从存储电压偏移与点火线圈的期望停留时间相对应的量,以及用于根据阈值电压和三角波之间的比较的结果来控制点火线圈的停留时间的通电控制器 电压。
    • 3. 发明授权
    • Frequency-to-current conversion circuit
    • 频率到电流转换电路
    • US4225796A
    • 1980-09-30
    • US967497
    • 1978-12-07
    • Tomoatsu MakinoYoshio HiranoKatsuteru Miwa
    • Tomoatsu MakinoYoshio HiranoKatsuteru Miwa
    • G01D5/12G01R23/06G08C19/02H03K9/06H03K1/08
    • G01R23/06
    • A frequency-to-current conversion circuit comprises a charge/discharge circuit for charging or discharging with a first constant current in synchronism with each cycle of an input pulse signal having a varying frequency, a voltage comparison circuit for detecting a predetermined voltage attained by the charge/discharge circuit at the expiration of a predetermined time interval dependent on the value of the first constant current from the beginning of the charge or discharge, and an output circuit for receiving the output signal of the voltage comparison circuit as well as the input pulse signal to generate a second constant current during the predetermined time interval in synchronism with each cycle of the input pulse signal.
    • 频率 - 电流转换电路包括用于与具有变化频率的输入脉冲信号的每个周期同步地以第一恒定电流进行充电或放电的充电/放电电路,用于检测由所述电压获得的预定电压的电压比较电路 充电/放电电路根据从充电或放电开始的第一恒定电流的值预定的时间间隔期满;以及输出电路,用于接收电压比较电路的输出信号以及输入脉冲 信号以在与输入脉冲信号的每个周期同步的预定时间间隔期间产生第二恒定电流。
    • 7. 发明授权
    • Supply-voltage-compensated contactless ignition system for internal
combustion engines
    • 内燃机用电压补偿非接触点火系统
    • US4397290A
    • 1983-08-09
    • US256833
    • 1981-04-23
    • Toshio TanakaTomoatsu Makino
    • Toshio TanakaTomoatsu Makino
    • F02P3/04F02P3/045
    • F02P3/0453
    • A supply-voltage-compensated contactless ignition system for internal combustion engines, which includes input transistor operable in response to an engine ignition signal so as to control the operation of a power transistor to control the energization of an ignition coil with the operating level of the input transistors being varied with variation in the supply voltage, further includes a current mirror circuit having first and second current shunt paths including first and second transistors which are connected in parallel with a voltage clamping device such that the each current path substantially the same amount of current when the supply voltage is normal and that one of the current paths shunts a current increased over that of the other in response to a rise of the supply voltage beyond a predetermined value, and includes a shunt device for shunting the increased current to the input transistors.
    • 一种用于内燃机的供应电压补偿的非接触式点火系统,其包括可响应于发动机点火信号操作的输入晶体管,以便控制功率晶体管的操作,以控制点火线圈的通电, 输入晶体管随着电源电压的变化而变化,还包括具有第一和第二电流分流路径的电流镜电路,其包括与电压钳位装置并联连接的第一和第二晶体管,使得每个电流路径基本上相同 当电源电压正常并且电流路径中的一个分流电流响应于电源电压超过预定值而增加到另一个电流时,并且包括用于将增加的电流分流到输入端的分流装置 晶体管。