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公开(公告)号：US20180219546A1
公开(公告)日：2018-08-02
申请号：US15420827
申请日：2017-01-31
Applicant: Ford Global Technologies, LLC
Inventor： Shuitao Yang , Fan Xu , Yan Zhou , Lihua Chen , Mohammed Khorshed Alam
CPC classification number: H03K17/166 , B60L11/1803 , B60L15/02 , B60L2210/14 , H02M1/08 , H02M1/088 , H02M3/155 , H02M7/483 , H02M7/5387 , H02M7/5395 , H02M2001/0058 , H02M2001/007 , H02P27/08 , H02P2201/07 , H02P2201/09 , H02P2201/11 , H03K17/0822 , H03K17/165 , H03K17/168 , H03K2217/009 , Y02T10/645 , Y02T10/7005 , Y02T10/7225 , Y02T10/92
Abstract: A gate driver of a power device includes a power supply and a resonant circuit. The power supply may have a positive potential and a negative potential. The resonant circuit may include an inductor and be configured to recirculate charge during turn-off by inducing a first field based on a positive charge from a gate caused by the positive potential, and in response to reversal of a voltage across the inductor, collapsing the first field to draw charge from the gate.
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公开(公告)号：US09998058B2
公开(公告)日：2018-06-12
申请号：US15484574
申请日：2017-04-11
Applicant: DENSO CORPORATION
Inventor： Hidekazu Takahashi
IPC: H02P1/00 , H02P27/08 , H02P21/22 , H02P27/06 , H02M1/44 , H02M3/158 , B60L11/08 , H02M7/5387 , H02M1/00
CPC classification number: H02P27/08 , B60L11/08 , H02M1/44 , H02M3/1588 , H02M7/53871 , H02M2001/007 , H02M2007/53876 , H02P21/22 , H02P27/06 , H02P2201/07 , Y02B70/1466
Abstract: In a control apparatus for an AC motor, a voltage waveform specifying unit of an inverter control unit specifies a voltage waveform for operating the inverter, based on a voltage vector calculated by a voltage command calculation unit. A spectrum amplitude extraction unit acquires values of bus current of the inverter and extracts the spectrum amplitude of the specific frequency that corresponds to the LC resonance frequency of the converter. A boost/non-boost state judgement unit of a converter control unit determines whether the state required by the converter in the next control cycle is the boost state or the non-boost state. When the spectrum amplitude of the specific frequency, correlated with the voltage waveform, is higher than the judgement threshold value and the converter is in the non-boost state, a voltage command value alteration unit changes the voltage command reference value such that the converter transitions to the boost state.
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公开(公告)号：US20180138853A1
公开(公告)日：2018-05-17
申请号：US15370345
申请日：2016-12-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wei-Shuo TSENG , Chao-Chin CHUANG , Yao-Yang YU , Li-Wei HSIAO
CPC classification number: H02P29/10 , H02M1/32 , H02M1/4225 , H02M2001/0022 , H02M2001/325 , H02M2001/4291 , H02P6/085 , H02P6/14 , H02P6/28 , H02P23/26 , H02P27/06 , H02P2201/07 , Y02B70/126 , Y02P80/112
Abstract: An electronically commutated fan system includes an alternating-current-to-direct-current conversion unit, an inverter unit and a control unit. The alternating-current-to-direct-current conversion unit converts an alternating-current input power source into a first direct-current power source. The inverter unit is electrically connected between the alternating-current-to-direct-current conversion unit and a fan. The inverter unit converts the first direct-current power source into an alternating-current output power source and provides the alternating-current output power source to the fan to rotate. The control unit is electrically connected to the alternating-current-to-direct-current conversion unit and the inverter unit. The control unit controls the alternating-current-to-direct-current conversion unit and the inverter unit to adjust a rotational speed of the fan. When the control unit detects a power variation of the alternating-current input power source, the control unit controls the rotational speed of the fan to be maintained within a first error range.
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344.发明申请公开(公告)号：US20180034403A1
公开(公告)日：2018-02-01
申请号：US15531117
申请日：2015-11-19
Inventor： Jin-han KIM , Byoung-kuk LEE , Min-kook KIM , Sun-jin KIM , Hyun-soo PARK , Dong-gyum WOO
CPC classification number: H02P27/06 , F24F11/89 , F24F13/14 , F25B49/025 , H02P23/26 , H02P2201/07 , H02P2201/15
Abstract: A motor driving device is disclosed. The motor driving device includes: a rectifier rectifying alternating current (AC) power into direct current (DC) power to output an input voltage; a first buck-boost converter including a plurality of switches for converting the input voltage and having a buck mode of stepping down the input voltage and a boost mode of stepping up the input voltage; an inverter converting a DC-link voltage transformed from the first buck-boost converter into an AC voltage and transferring the AC voltage to a motor; and a controller receiving motor information related to driving of the motor, comparing magnitudes of a desired DC-link voltage depending on the received motor information and the input voltage with each other, and performing a control to switch only any one of the plurality of switches so that the first buck-boost converter is operated in the buck mode or the boost mode.
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公开(公告)号：US09461577B2
公开(公告)日：2016-10-04
申请号：US14956015
申请日：2015-12-01
Applicant: Woodward, Inc.
Inventor： David L. Ried
IPC: H02P1/00 , H02P1/28 , H02P3/00 , H02P7/06 , H02P25/06 , H02P29/00 , F16K31/00 , H02P27/06 , H02M7/48 , H02M1/00
CPC classification number: H02P25/06 , F16K31/00 , H02M7/48 , H02M2001/007 , H02P27/06 , H02P29/00 , H02P2201/07 , H02P2201/09
Abstract: In some aspects, an actuation system includes an electrical positioning driver and an electrically-driven actuator. A voltage boost converter in the electrical positioning driver receives an input voltage. The voltage boost converter passes the input voltage to a voltage bus in the electrical positioning driver. The voltage on the voltage bus is converted to an actuator power signal that controls the electrically-driven actuator. The voltage boost converter boosts the voltage on the voltage bus to control a mechanical output performance of the electrically-driven actuator.
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Patent Agency Ranking
公开(公告)号：US20160090184A1
公开(公告)日：2016-03-31
申请号：US14867152
申请日：2015-09-28
Applicant: REEBEEZ, INC
Inventor： Ankita Ghoshal
CPC classification number: B64D27/24 , B60L8/003 , B64C39/024 , B64C2201/04 , B64C2201/042 , B64D2027/026 , H01L35/00 , H01L35/04 , H01L35/12 , H01L35/22 , H01L35/28 , H01L35/30 , H01L35/32 , H01L35/34 , H02P31/00 , H02P2201/07 , H02S10/30 , Y02T10/7083 , Y02T50/64
Abstract: This disclosure generally relates to a hybrid solid-state propulsion system for aerial vehicles. The hybrid propulsion system includes a combustor, a thermophotovoltaic generator, and a thermoelectric generator. The combustor burns a chemical based fuel to produce radiation and heat that are converted into electricity used to power the aerial vehicle. The thermophotovoltaic generator is positioned to receive radiation and remnant heat generated by flames in the combustor while the thermoelectric generator receives heat from exhausted flue gases from the combustor.
Abstract translation: 本公开一般涉及用于空中飞行器的混合固态推进系统。 混合推进系统包括燃烧器，热光伏发电机和热电发电机。 燃烧器燃烧基于化学物质的燃料以产生被转换成用于为飞行器运行的电力的辐射和热量。 热光电发生器被定位成接收由燃烧器中的火焰产生的辐射和残余热，同时热电发电机从来自燃烧器的排出的废气中接收热量。
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公开(公告)号：US20160087569A1
公开(公告)日：2016-03-24
申请号：US14956015
申请日：2015-12-01
Applicant: Woodward, Inc.
Inventor： David L. Ried
IPC: H02P25/06
CPC classification number: H02P25/06 , F16K31/00 , H02M7/48 , H02M2001/007 , H02P27/06 , H02P29/00 , H02P2201/07 , H02P2201/09
Abstract: In some aspects, an actuation system includes an electrical positioning driver and an electrically-driven actuator. A voltage boost converter in the electrical positioning driver receives an input voltage. The voltage boost converter passes the input voltage to a voltage bus in the electrical positioning driver. The voltage on the voltage bus is converted to an actuator power signal that controls the electrically-driven actuator. The voltage boost converter boosts the voltage on the voltage bus to control a mechanical output performance of the electrically-driven actuator.
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公开(公告)号：US09130500B2
公开(公告)日：2015-09-08
申请号：US13981473
申请日：2011-03-28
Applicant: Manabu Ohashi , Kazuya Nakamura
Inventor： Manabu Ohashi , Kazuya Nakamura
CPC classification number: H02P27/06 , H02M1/32 , H02P3/22 , H02P2201/03 , H02P2201/07 , Y02P80/116
Abstract: A circuit disconnection element that can open or short-circuit between a power storage element and a step-up/step-down bidirectional chopper circuit is provided in a power storage system, thereby preventing a self-discharge state in a process of charging. Furthermore, at the time of occurrence of an abnormality, the power storage element is detached from other devices including the step-up/step-down bidirectional chopper circuit. Accordingly, an energy loss of the power storage element at the time of power regeneration can be reduced to improve the energy use efficiency. Further, breakage influences such that the power storage element causes breakage in other devices at the time of occurrence of the abnormality can be prevented, thereby enabling to obtain an AC motor drive device having mounted therein a highly safe power storage system.
Abstract translation: 在蓄电系统中设置有能够在蓄电元件与升压/降压双向斩波电路之间断开或短路的电路断路元件，从而防止充电过程中的自放电状态。 此外，在异常发生时，蓄电元件与包括升压/降压双向斩波电路的其他装置分离。 因此，可以降低功率再生时的蓄电元件的能量损失，提高能量利用效率。 此外，可以防止在异常发生时蓄电元件导致其他装置中的断线的破损，从而能够获得安装有高度安全的蓄电系统的交流电动机驱动装置。
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349.发明授权Rotor position estimating device, electric motor control system and rotor position estimating method 有权转子位置估算装置，电机控制系统和转子位置估算方法公开(公告)号：US09077275B2
公开(公告)日：2015-07-07
申请号：US13960209
申请日：2013-08-06
Applicant: Hichirosai Oyobe , Takuya Nishimoto , Hiroyuki Oyanagi
Inventor： Hichirosai Oyobe , Takuya Nishimoto , Hiroyuki Oyanagi
CPC classification number: H02P21/0096 , H02P21/04 , H02P21/18 , H02P21/22 , H02P27/085 , H02P2201/07 , H02P2209/13
Abstract: A rotor position estimating device includes a voltage application unit, a current detecting unit and an estimating unit. The voltage application unit is configured to apply a d-axis voltage to an electric motor including a salient-pole rotor during a stop of the electric motor. The current detecting unit is configured to detect a q-axis current flowing through the electric motor at the time when the d-axis voltage is applied. The estimating unit is configured to estimate a rotor position during a stop of the electric motor on the basis of the q-axis current detected by the current detecting unit. The voltage application unit is configured to set a voltage application time in correspondence with peak timing at which the q-axis current reaches a peak in a transitional response characteristic of the q-axis current at the time when the d-axis voltage is applied.
Abstract translation: 转子位置估计装置包括电压施加单元，电流检测单元和估计单元。 电压施加单元被配置为在电动机停止期间向包括凸极转子的电动机施加d轴电压。 电流检测单元被配置为在施加d轴电压时检测流过电动机的q轴电流。 估计单元被配置为基于由电流检测单元检测的q轴电流来估计电动机停止期间的转子位置。 电压施加单元被配置为根据施加d轴电压时的q轴电流的过渡响应特性中的q轴电流达到峰值的峰值定时来设定电压施加时间。
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公开(公告)号：US09018866B2
公开(公告)日：2015-04-28
申请号：US13928681
申请日：2013-06-27
Applicant: Shinjiro Ashida , Tatsuki Nishimata
Inventor： Shinjiro Ashida , Tatsuki Nishimata
CPC classification number: H02P31/00 , B60L3/0038 , B60L3/0046 , B60L3/04 , B60L3/12 , B60L11/005 , B60L11/1803 , B60L11/1859 , B60L11/1861 , B60L11/1864 , B60L15/007 , B60L2210/10 , B60L2240/421 , B60L2240/547 , B60L2240/549 , B60L2270/145 , B60L2270/20 , H01M10/4207 , H01M10/425 , H01M10/48 , H01M2220/20 , H02J7/00 , H02J7/0021 , H02P2201/07 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7022 , Y02T10/7044 , Y02T10/7061 , Y02T10/7216
Abstract: At least one of a current value and a voltage value of an electrical storage device which is charged and discharged is detected with the use of each of a plurality of sensors. A predetermined process is executed on the basis of the detected values of the plurality of sensors The predetermined process is executed without using the detected values of the sensors in the predetermined process when a difference between a frequency of each of the detected values, which varies with a rotation speed of a motor that operates upon reception of an output power of the electrical storage device, and a resonance frequency of a step-up circuit, which varies with operation of the step-up circuit that steps up an output voltage of the electrical storage device and outputs the stepped-up electric power to the motor, is smaller than a threshold.
Abstract translation: 使用多个传感器中的每一个来检测充放电的蓄电装置的电流值和电压值中的至少一个。 基于多个传感器的检测值来执行预定处理。当检测到的每个检测值的频率之间的差异随着检测值的变化而变化时，执行预定处理而不使用预定处理中的传感器的检测值 在接收到蓄电装置的输出功率时工作的电动机的转速以及升压电路的共振频率，该升压电路随着升压电路的动作而变化，该升压电路的升压电路的电压 存储装置并将升压电力输出到电动机，小于阈值。
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