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    • 1. 发明授权
    • Mass flow measuring apparatus
    • 质量流量计
    • US4220045A
    • 1980-09-02
    • US963714
    • 1978-11-27
    • Suzuo SuzukiHiroyuki MaruokaHatsuo NagaishiYuji Matsubara
    • Suzuo SuzukiHiroyuki MaruokaHatsuo NagaishiYuji Matsubara
    • G01F1/708G01F1/78G01F1/56G01F1/76
    • G01F1/78G01F1/7088
    • Mass flow measuring apparatus includes ionizing electrodes and an ion collecting electrode located downstream of the ionizing electrodes where the ionizing electrodes are biased with a high DC voltage produced in response to ignition pulses of an internal combustion engine. The high voltage is derived from a tap of the secondary winding of the ignition coil of the ignition circuit. The ions are allowed to migrate at the same speed with the mass fluid flow an are collected by the collecting electrode. The transit time of the ions over the distance between the ionizing electrodes and the collecting electrode is measured. The period of the high DC voltage applied across the ionizing electrodes may be controlled in accordance with the magnitude of the load of the engine and/or the transit time of the ions.
    • 质量流量测量装置包括电离电极和位于电离电极下游的离子收集电极,其中电离电极被响应于内燃机的点火脉冲产生的高直流电压偏置。 高压源自点火电路的点火线圈的次级绕组的抽头。 允许离子以相同速度迁移,质量流体流动被收集电极收集。 测量离子在电离电极和集电极之间的距离的传播时间。 可以根据发动机的负载的大小和/或离子的通过时间来控制施加在电离电极上的高DC电压的周期。
    • 7. 发明授权
    • Unthrottled intake air control with partial delay for requested engine response performance
    • 无节制的进气控制,部分延迟要求发动机响应性能
    • US06513490B2
    • 2003-02-04
    • US09727787
    • 2000-12-04
    • Takao KawasakiMasahiro AraiHatsuo Nagaishi
    • Takao KawasakiMasahiro AraiHatsuo Nagaishi
    • F02D4100
    • F02D13/0234F01L9/04F01L2201/00F02D13/0203F02D13/0253F02D41/0002F02D41/083F02D43/00F02D45/00F02D2041/001F02D2041/002Y02T10/18Y02T10/42
    • A system and method for unthrottled intake air control for an internal combustion engine. The engine has at least one combustion chamber provided with electromagnetic intake means. The opening and closing times of the intake means are adjustable entirely independently from the crankshaft position to control intake air supplied to the combustion chamber. A control unit is used to implement instructions for determining a first portion of requested intake airflow, which first portion requests a first engine response performance, and instructions for determining a second portion of requested intake airflow, which second portion requests a second engine response performance. The control unit implements instructions for processing the first and second airflow portions to make contributions to the first and second engine response performances, respectively, instructions for determining an intake means activation command, and instructions for providing the intake means activation command to the intake means to provide an engine response performance combining the first engine response performance with the second engine response performance.
    • 一种用于内燃机的无节流进气调节的系统和方法。 发动机具有设置有电磁进气装置的至少一个燃烧室。 进气装置的打开和关闭时间可以完全独立于曲轴位置进行调节,以控制供给燃烧室的进气。 控制单元用于实现用于确定所请求的进气量的第一部分的指令,该第一部分请求第一发动机响应性能,以及用于确定所请求的进气流的第二部分的指令,该第二部分请求第二发动机响应性能。 控制单元执行用于处理第一和第二气流部分以分别对第一和第二发动机响应性能做出贡献的指令,分别用于确定进气装置启动命令的指令和用于将进气装置启动命令提供给进气装置的指令 提供将第一发动机响应性能与第二发动机响应性能相结合的发动机响应性能。
    • 9. 发明授权
    • Air/fuel ratio control apparatus
    • 空燃比控制装置
    • US5690086A
    • 1997-11-25
    • US716844
    • 1996-09-10
    • Akihiro KawanoHatsuo NagaishiYoshiaki Yoshioka
    • Akihiro KawanoHatsuo NagaishiYoshiaki Yoshioka
    • F02D41/00F02D41/14F02M25/08
    • F02D41/1483F02D41/0045F02D41/0042F02M25/08
    • An apparatus for use with an internal combustion engine having a fuel vapor trap from which fuel vapor is purged into the engine through a purge passage having a purge control valve provided therein. The purge control valve is controlled to permit fuel vapor purge through the purge passage based on the existing engine operating conditions. An air/fuel ratio feedback control correction factor is calculated to correct the air/fuel ratio within a predetermined range based on the air/fuel ratio of the mixture supplied to the engine. A gain value is calculated based on a deviation between the air/fuel ratio feedback correction factor calculated with the fuel vapor purge and the air/fuel ratio feedback correction factor calculated without the fuel vapor purge and a purge rate of the fuel vapor flow rate to the intake air flow rate. The calculated gain values are stored in a memory in respective memory locations addressable by different fuel vapor amounts. The calculated gain value is stored in the memory in a memory location corresponding to the sensed fuel vapor amount to update a gain value stored previously in the memory location. A gain value is read from the memory location corresponding to the fuel vapor amount. The amount of fuel supplied to the engine is controlled according to a target value calculated based on the read gain value and the engine operating conditions.
    • 一种与具有燃料蒸气阱的内燃机一起使用的装置,燃料蒸气通过具有设置在其中的清洗控制阀的吹扫通道从燃料蒸气排出到发动机中。 根据现有的发动机工作条件,控制清洗控制阀以允许通过吹扫通道的燃料蒸汽吹扫。 计算空气/燃料比反馈控制校正系数,以基于供给到发动机的混合物的空燃比来校正在预定范围内的空燃比。 基于由燃料蒸气吹扫计算出的空燃比反馈校正因子与没有燃料蒸气吹扫计算出的空燃比反馈校正因子和燃料蒸汽流量的吹扫率之间的偏差计算增益值 进气流量。 所计算的增益值被存储在可由不同燃料蒸汽量寻址的相应存储器位置的存储器中。 将计算出的增益值存储在与检测到的燃料蒸汽量对应的存储位置的存储器中,以更新先前存储在存储器位置中的增益值。 从对应于燃料蒸气量的存储位置读取增益值。 根据基于读取增益值和发动机工作条件计算的目标值来控制供给发动机的燃料量。
    • 10. 发明授权
    • Signal processor
    • 信号处理器
    • US5529043A
    • 1996-06-25
    • US275359
    • 1994-07-15
    • Hatsuo NagaishiKenji OhtaHiroyuki Itoyama
    • Hatsuo NagaishiKenji OhtaHiroyuki Itoyama
    • F02D45/00F02D9/10F02D31/00F02D41/10F02D41/18F02M51/00
    • F02D41/10F02D31/005F02D41/187F02D2011/102F02D9/1055
    • This invention relates to a signal processor for processing a signal and outputting a processed value. The processor comprises a mechanism for determining whether or not the signal exceeds a preset value, a mechanism for outputting the signal as the processed value when the signal does not exceed the preset value, and a mechanism for outputting the preset value as the processed value when the signal exceeds the preset value. This invention further provides a mechanism for computing a difference between the signal and the preset value when the signal exceeds the preset value, a memory for storing this difference as a postponed correction amount, and a mechanism for adding the postponed correction amount to said signal when the signal no longer exceeds the preset value. In this way, by compensating at a later time for errors arising from modifications made when the signal exceeded said preset value, the precision of operations and controls based on the processed value is improved. Further, in control systems using the integral of said signal, the precision of integral values is also improved. This invention therefore provides effective correction of signal processing errors when applied to the output of an air flow meter having a heating element wound on a bobbin, or to the control of a flowrate control valve installed in an intake air passage of a lean burn engine.
    • 本发明涉及用于处理信号并输出​​处理值的信号处理器。 处理器包括用于确定信号是否超过预设值的机构,当信号不超过预设值时输出信号作为处理值的机构,以及用于输出预设值作为处理值的机构, 信号超过预设值。 本发明还提供了一种用于当信号超过预设值时计算信号与预设值之间的差异的机构,用于将该差异存储为延迟校正量的存储器,以及用于将延迟校正量添加到所述信号的机制, 信号不再超过预设值。 以这种方式,通过在信号超过所述预设值时进行的修改产生的错误在稍后的时间内进行补偿,提高了基于处理值的操作和控制的精度。 此外,在使用所述信号的积分的控制系统中,积分值的精度也得到改善。 因此,本发明提供了当应用于具有缠绕在筒管上的加热元件的空气流量计的输出或安装在稀薄燃烧发动机的进气通道中的流量控制阀的控制时信号处理误差的有效校正。