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    • 1. 发明申请
    • CONTROL APPARATUS FOR ELECTRIC MOTOR
    • 电动马达控制装置
    • US20120242262A1
    • 2012-09-27
    • US13203671
    • 2010-02-02
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato KitaYoshie Kita
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato KitaYoshie Kita
    • H02P6/08
    • H02P27/06
    • A control apparatus for an electric motor provided with a rotator having a permanent magnet and with a stator for generating a rotating magnetic field by an applied voltage and revolving the rotator includes: a rectangular wave inverter that applies a rectangular wave voltage onto the stator of the electric motor to drive the electric motor; a voltage converting section that raises or lowers an output voltage of a direct-current power supply and applies the voltage onto the rectangular wave inverter; an electrical angle acquiring section that acquires an electrical angle of the rotator of the electric motor; and an output voltage command generating section that generates a command for instructing the voltage converting section to output an electrical-angle synchronized voltage whose amplitude ripples in synchronization with a change of the electrical angle of the rotator acquired by the electrical angle acquiring section. In response to the command generated by the output voltage command generating section, the voltage converting section raises or lowers the output voltage of the direct-current power supply to a voltage indicated by the command and applies the voltage onto the rectangular wave inverter. This reduces a loss caused by a response delay of the electric motor.
    • 一种电动机的控制装置,具备具有永久磁铁和定子的旋转体,所述旋转体通过施加电压产生旋转磁场并旋转所述旋转体,所述旋转体包括:将矩形波电压施加到所述定子上的矩形波逆变器 电动马达驱动电机; 电压转换部,其升高或降低直流电源的输出电压,并将电压施加到矩形波逆变器上; 电角度获取部,其获取所述电动机的旋转体的电角度; 以及输出电压指令生成部,其生成用于指示电压转换部输出与由所述电角度获取部获取的所述旋转体的电角度的变化同步的振幅波动的电角同步电压的指令。 响应于由输出电压指令产生部分产生的指令,电压转换部分将直流电源的输出电压升高或降低到由该指令指示的电压,并将电压施加到矩形波逆变器上。 这减少了由电动机的响应延迟引起的损耗。
    • 2. 发明授权
    • Control apparatus for electric motor
    • 电动机控制装置
    • US08749184B2
    • 2014-06-10
    • US13203671
    • 2010-02-02
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaYoshie Kita
    • Hirofumi AtarashiHitoshi HorikawaToshiyuki NishidaMasato Kita
    • H02P27/00H02P1/00H02P6/00H02P27/04
    • H02P27/06
    • A control apparatus for an electric motor provided with a rotator having a permanent magnet and with a stator for generating a rotating magnetic field by an applied voltage and revolving the rotator includes: a rectangular wave inverter that applies a rectangular wave voltage onto the stator of the electric motor to drive the electric motor; a voltage converting section that raises or lowers an output voltage of a direct-current power supply and applies the voltage onto the rectangular wave inverter; an electrical angle acquiring section that acquires an electrical angle of the rotator of the electric motor; and an output voltage command generating section that generates a command for instructing the voltage converting section to output an electrical-angle synchronized voltage whose amplitude ripples in synchronization with a change of the electrical angle of the rotator acquired by the electrical angle acquiring section. In response to the command generated by the output voltage command generating section, the voltage converting section raises or lowers the output voltage of the direct-current power supply to a voltage indicated by the command and applies the voltage onto the rectangular wave inverter. This reduces a loss caused by a response delay of the electric motor.
    • 一种电动机的控制装置,具备具有永久磁铁和定子的旋转体,所述旋转体通过施加电压产生旋转磁场并旋转所述旋转体,所述旋转体包括:将矩形波电压施加到所述定子上的矩形波逆变器 电动马达驱动电机; 电压转换部,其升高或降低直流电源的输出电压,并将电压施加到矩形波逆变器上; 电角度获取部,其获取所述电动机的旋转体的电角度; 以及输出电压指令生成部,其生成用于指示电压转换部输出与由所述电角度获取部获取的所述旋转体的电角度的变化同步的振幅波动的电角同步电压的指令。 响应于由输出电压指令产生部分产生的指令,电压转换部分将直流电源的输出电压升高或降低到由该指令指示的电压,并将电压施加到矩形波逆变器上。 这减少了由电动机的响应延迟引起的损耗。
    • 7. 发明授权
    • Fuel injection method for gas fuel engine
    • 燃气发动机燃油喷射方法
    • US5735248A
    • 1998-04-07
    • US698519
    • 1996-08-15
    • Hiromi MatsuuraHideki MinamiSusumu NakajimaKazuhiro UedaShigeru AokiToshiyuki Nishida
    • Hiromi MatsuuraHideki MinamiSusumu NakajimaKazuhiro UedaShigeru AokiToshiyuki Nishida
    • F02M21/02F02D19/02F02D41/02
    • F02D19/027F02D19/024F02M21/0224F02M21/0278Y02T10/32
    • A fuel injection method wherein optimum fuel injection timing in a fuel-injection type gas fuel engine is determined by setting fuel injection end timing to be after the start of opening of an intake valve. That is, when injection ends in a first half of the intake valve open period the volumetric efficiency .eta.v falls and the engine output also falls, because the injection period overlaps with a period of positive pressure arising inside the intake pipe before opening of the intake valve, but when injection ends in a second half of the intake valve open period the volumetric efficiency .eta.v rises and the engine efficiency also rises, because the injection period overlaps with a period of negative pressure arising in the intake pipe during the first half of the intake value open period. Consequently, when fuel is injected during this trough in the intake port pressure, the volumetric efficiency increases and the engine output also increases by several percent.
    • 一种燃料喷射方法,其中燃料喷射型气体燃料发动机中的最佳燃料喷射正时通过将燃料喷射结束定时设定为在开阀开始之后。 也就是说,当进气阀打开期间的前半部分的喷射结束时,体积效率等级下降,并且发动机输出也下降,因为喷射周期与在进气口打开之前在进气管内部产生的正压时间重叠 但是当喷射在进气阀打开时段的后半段结束时,容积效率η升高并且发动机效率也上升,因为喷射周期与进气管在上半年期间产生的负压时间重叠 摄入量开放期。 因此,当在进气口压力期间在该槽内喷射燃料时,容积效率增加,发动机输出也增加了几个百分点。
    • 8. 发明授权
    • Ignition timing control system for internal combustion engines
    • 内燃机点火正时控制系统
    • US5509389A
    • 1996-04-23
    • US343104
    • 1994-11-22
    • Yoshikazu OshimaKen OgawaToshiyuki Nishida
    • Yoshikazu OshimaKen OgawaToshiyuki Nishida
    • F02D37/02F02D41/04F02D41/10F02D41/12F02D41/34F02D43/00F02P5/15
    • F02P5/1504F02D37/02F02D41/047F02D41/126F02B2275/18Y02T10/46
    • An ignition timing control system for an internal combustion engine is associated with a fuel injection amount control system for calculating an amount of fuel to be supplied to the engine, based on operating conditions of the engine, correcting the calculated amount of fuel, based on an adherent amount of fuel adhering to the inner wall surface of the intake passage, and a carried-off amount of fuel to be carried off from the adherent fuel into each combustion chamber of the engine, and injecting the corrected fuel amount into the intake passage. The ignition timing control system comprises an ECU which detects whether the engine has been recovered from a fuel cut state to a fuel supply state, and calculates ignition timing of the engine, based on operating conditions of the engine detected by engine operating parameter sensors, including pressure within the intake passage. A retard amount by which the ignition timing is to be retarded is calculated based on the detected operating conditions of the engine when it is detected that the engine has been recovered from the fuel cut state to the fuel supply state. Further, the ignition timing is corrected based on the calculated retard amount.
    • 一种用于内燃机的点火正时控制系统与用于计算供给到发动机的燃料量的燃料喷射量控制系统相关联,该燃料喷射量控制系统基于发动机的操作条件,基于 粘附在进气通道的内壁表面上的附着量的燃料,以及将从附着燃料排出到发动机的每个燃烧室中的燃料的排出量,并将校正的燃料量注入进气通道。 点火正时控制系统包括ECU,其检测发动机是否已经从燃料切断状态恢复到燃料供给状态,并且基于由发动机操作参数传感器检测到的发动机的运行状况来计算发动机的点火正时,包括 进气通道内的压力。 当检测到发动机已经从燃料切断状态恢复到燃料供给状态时,基于检测到的发动机的运行状况来计算点火正时延迟的延迟量。 此外,基于所计算的延迟量来校正点火正时。