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    • 31. 发明授权
    • Ignition timing control circuit for an internal combustion engine
    • 用于内燃机的点火正时控制电路
    • US5009209A
    • 1991-04-23
    • US476231
    • 1990-02-07
    • Hiroshi OkudaMasayuki Ozawa
    • Hiroshi OkudaMasayuki Ozawa
    • F02P5/155
    • F02P5/1555Y02T10/46
    • An ignition timing control circuit for an internal combustion engine of a ring gear tooth counting type includes a throttle sensor for sensing the load condition of the engine and generating an output voltage representative of the sensed load condition, a reference-signal generator for generating a reference signal, a clock pulse generator in the form of a gear-signal pick-up coil for generating clock pulses based on the rotational position of a ring gear, a counter operable to start the counting of the clock pulses generated by the clock pulse generator when the reference-signal generator generates a reference signal, the counter outputting a digitalized output representative of the number of the counted clock pulses, a D/A converter for converting the digitalized output of the counter into an analog voltage having a stepped form, an integrator for integrating and smoothing out the stepped output voltage of the D/A converter, and a comparator for comparing the output voltage of the integrator and the output voltage of the throttle sensor and generating an output signal for controlling the ignition timing of the engine in accordance with the result of comparison. In one embodiment, the integrator has a fixed time constant and comprises a capacitor. In another embodiment, the integrator has a variable time constant and comprises a plurality of capacitors connected to the D/A converter through a switch for changing the total capacitance of the integrator in response to the output of the counter.
    • 一种用于齿圈齿数计数型内燃机的点火正时控制电路,包括用于感测发动机的负载状态并产生表示感测负载状态的输出电压的节气门传感器,用于产生参考的参考信号发生器 信号,时钟脉冲发生器,其形式为齿轮信号拾取线圈,用于基于齿圈的旋转位置产生时钟脉冲;计数器,可操作以开始计时由时钟脉冲发生器产生的时钟脉冲, 参考信号发生器产生参考信号,计数器输出表示计数的时钟脉冲数的数字化输出,用于将计数器的数字化输出转换成具有阶梯形式的模拟电压的D / A转换器,积分器 用于积分和平滑D / A转换器的阶梯式输出电压,以及用于比较输入电压的输出电压的比较器 调节器和节气门传感器的输出电压,并根据比较结果生成用于控制发动机的点火正时的输出信号。 在一个实施例中,积分器具有固定的时间常数并且包括电容器。 在另一个实施例中,积分器具有可变时间常数,并且包括通过开关连接到D / A转换器的多个电容器,用于响应于计数器的输出而改变积分器的总电容。
    • 32. 发明授权
    • Ignition timing control apparatus
    • 点火正时控制装置
    • US4612899A
    • 1986-09-23
    • US694967
    • 1985-01-25
    • Yoshihisa HonjohHiroshi Okuda
    • Yoshihisa HonjohHiroshi Okuda
    • F02B61/04F02P5/155F02P5/02
    • F02P5/1556F02B61/045Y02T10/46
    • An ignition timing control apparatus for an internal combustion engine such as an outboard motor is disclosed. The ignition timing control apparatus has a throttle switch, interlocked with a throttle valve, including a first contact closed when the throttle valve is fully opened and a second contact closed when the throttle valve is fully closed. In the former case, the ignition timing of the engine is retained in an advanced angle, thereby enhancing the acceleration while in the latter case, the ignition timing is retained in a retarded angle, thereby enhancing the deceleration. When the first and second contacts are both opened, the ignition timing is advanced corresponding to the engine speed.
    • 公开了一种用于诸如舷外马达的内燃机的点火正时控制装置。 点火正时控制装置具有与节流阀互锁的节流开关,包括当节气门完全打开时第一触点闭合,当节气门完全关闭时第二触点闭合。 在前一种情况下,发动机的点火正时保持在提前角度,从而提高加速度,而在后一种情况下,点火正时保持在延迟角度,从而增强减速度。 当第一和第二触点都打开时,点火正时提前对应于发动机转速。
    • 33. 发明授权
    • Ion current detector
    • 离子电流检测器
    • US08860419B2
    • 2014-10-14
    • US13226668
    • 2011-09-07
    • Kimihiko TanayaHiroshi Okuda
    • Kimihiko TanayaHiroshi Okuda
    • F02P17/00F02D41/22F02D35/02
    • F02D41/222F02D35/021F02P17/12Y02T10/40
    • In order not to deteriorate the detection properties of an ion current that monitors a combustion state even when a smolder leak is present in an ignition plug of an internal combustion engine, an ion current detector includes an ignition plug of an internal combustion engine, an ignition coil which supplies a high voltage to the ignition plug, a controller which sends an ignition command, a bias capacitor which supplies a bias voltage to the ignition coil, an ignition capacitor which is connected to a primary side winding of the ignition coil, a DC power supply which charges the ignition capacitor and the bias capacitor, a current detecting unit which detects a current flowing through the ignition plug, an ion current detecting unit which detects an ion current from the current detected by the current detecting unit, and a Zener diode which restricts a charging voltage of the bias capacitor.
    • 为了即使在内燃机的火花塞中存在闷燃泄漏的情况下也不会劣化监视燃烧状态的离子电流的检测特性,离子电流检测器包括内燃机的火花塞,点火 向火花塞提供高电压的线圈,发送点火指令的控制器,向点火线圈提供偏置电压的偏置电容器,连接到点火线圈的初级侧绕组的点火电容器,DC 对点火电容器和偏置电容器进行充电的电源,检测流过火花塞的电流的电流检测单元,从由电流检测单元检测的电流检测离子电流的离子电流检测单元,以及齐纳二极管 这限制了偏置电容器的充电电压。
    • 36. 发明授权
    • Power supply device
    • 电源设备
    • US08415931B2
    • 2013-04-09
    • US13005968
    • 2011-01-13
    • Nobuhiro KiharaMasayoshi MaedaNaoki ItoiHiroshi Okuda
    • Nobuhiro KiharaMasayoshi MaedaNaoki ItoiHiroshi Okuda
    • H02P9/00H02K11/00
    • H02P9/48
    • A power supply device includes: a rectifier having a full-wave rectification circuit whose low side elements are made of MOSFETs; an electrical load supplied with DC power from the rectifier; and a control circuit having a load voltage detector and an AC voltage detector for detecting an input terminal voltage from a permanent-magnet generator; wherein when a terminal voltage across the electrical load is lower than a predetermined value, the control circuit operates the rectifier in full-wave rectification mode, whereas when the terminal voltage across the electrical load is higher than the predetermined value, the control circuit short-circuits input terminals of the permanent-magnet generator with each other, and when power for driving the control circuit is not secured, the control circuit retains the full-wave rectification mode even if the terminal voltage across the electrical load is higher than the predetermined value.
    • 电源装置包括:具有全波整流电路的整流器,其低侧元件由MOSFET制成; 提供来自整流器的直流电力的电力负载; 以及具有负载电压检测器和AC电压检测器的控制电路,用于检测永磁发电机的输入端电压; 其中当跨过电负载的端子电压低于预定值时,控制电路以全波整流模式操作整流器,而当电负载两端的端电压高于预定值时,控制电路短路, 永久磁铁发生器的输入端子彼此之间,并且当不能确保用于驱动控制电路的电源时,即使电负载两端的端子电压高于预定值,控制电路保持全波整流模式 。
    • 40. 发明授权
    • Plasma ignition device
    • 等离子点火装置
    • US08096276B2
    • 2012-01-17
    • US12853942
    • 2010-08-10
    • Futoshi AidaHiroshi OkudaYuichi MuramotoYusuke Naruse
    • Futoshi AidaHiroshi OkudaYuichi MuramotoYusuke Naruse
    • F02P3/08F02P23/00
    • F02P3/0876F02D2041/2003F02D2041/2006F02P3/01F02P9/007F02P11/00
    • A plasma power supply circuit includes a DC/DC converter connected to a DC power supply and outputting a DC voltage, a voltage limit circuit limiting an output voltage from the DC/DC converter to a predetermined value, a PJ capacitor connected to an output end of the DC/DC converter and charged with electric energy used to generate a plasma in a discharge space of the spark plug, and a high-voltage switch connected between the PJ capacitor and the DC/DC converter and controlled to switch ON and OFF so that a charge period of the PJ capacitor is controlled according to running conditions of the internal combustion engine. Hence, the plasma ignition device can prevent damage on an electronic component incorporated therein even at the occurrence of a short and lessen damage on the internal combustion engine caused by an erroneous plasma jet ejection, wearing of the spark plug, and power consumption.
    • 等离子体电源电路包括连接到直流电源并输出直流电压的DC / DC转换器,将DC / DC转换器的输出电压限制在预定值的电压限制电路,连接到输出端的PJ电容器 的DC / DC转换器,并且充电用于在火花塞的放电空间中产生等离子体的电能,以及连接在PJ电容器和DC / DC转换器之间并被控制为接通和断开的高压开关 根据内燃机的运行条件来控制PJ电容器的充电期间。 因此,等离子体点火装置即使在错误的等离子体喷射喷射,火花塞的磨损和功率消耗引起的对内燃机的短时间和短时间的损坏的发生中也可以防止其中所包含的电子部件的损坏。