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21.发明申请公开(公告)号：US20170295662A1
公开(公告)日：2017-10-12
申请号：US15511682
申请日：2015-09-24
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
CPC classification number: H05K7/1427 , F04B35/04 , F04B39/06 , F04B39/121 , F04B39/14 , F04D13/06 , F04D29/043 , H02K5/22 , H02K9/19 , H02K11/30 , H02K11/33 , H02K15/00 , H02K15/02 , H02K2213/09 , H02M7/003 , H02M7/537 , H02M7/53871 , H05K7/2039 , H05K7/20927 , H05K13/0015
Abstract: An electrical device includes two or more electrical components that configure an electrical circuit, at least one or more mechanical component that supports the two or more electrical components and is fixed to the two or more electrical components, and a position-adjustment structure that adjusts positions of the two or more electrical components relative to the one or more mechanical component with the at least two or more electrical components being united together, before the one or more mechanical component is fixed to the two or more electrical components.
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公开(公告)号：US20160146209A1
公开(公告)日：2016-05-26
申请号：US14896686
申请日：2014-07-29
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
CPC classification number: F04C29/047 , F04B35/04 , F04B49/02 , F04B49/06 , F04C18/0215 , F04C18/344 , F04C28/06 , F04C28/08 , F04C28/28 , F04C29/0085 , F04C29/045 , F04C2240/808 , F04C2240/81 , F04C2270/19
Abstract: A motor-driven compressor includes: a compression mechanism; an electric motor that drives the compression mechanism; a driver circuit unit disposed at a position to be cooled by refrigerant drawn by the compression mechanism; a temperature detection unit that detects a temperature of the driver circuit unit; and a motor control device disposed in the driver circuit unit to control the motor. The motor control device stores a predetermined drive pattern corresponding to a temperature characteristic of the driver circuit unit after starting the motor. When the temperature detected by the temperature detection unit at a time of starting the motor is higher than or equal to a predetermined temperature, the motor control device performs a limit drive control according to the predetermined drive pattern regardless of a drive state command to the motor.
Abstract translation: 电动压缩机包括：压缩机构; 驱动压缩机构的电动机; 驱动器电路单元，设置在由所述压缩机构吸入的制冷剂被冷却的位置; 温度检测单元，其检测所述驱动器电路单元的温度; 以及设置在驱动器电路单元中以控制电动机的电动机控制装置。 电动机控制装置在启动电动机之后存储对应于驱动电路单元的温度特性的预定驱动模式。 当在启动电动机时由温度检测单元检测到的温度高于或等于预定温度时，马达控制装置根据预定的驱动模式进行极限驱动控制，而不管驱动状态命令如何。 。
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公开(公告)号：US20200070626A1
公开(公告)日：2020-03-05
申请号：US16675057
申请日：2019-11-05
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI , Shinsuke KONISHI , Hiromitsu MAEHATA
IPC: B60H1/00
Abstract: An air-conditioning control apparatus for a vehicle capable of unmanned driving includes a determining section that is configured to determine whether an occupant is in the vehicle and an output section that is configured to execute an air-conditioning control based on a determination result by the determining section. The output section is configured to execute the air-conditioning control based on ride schedule information indicating a length of time until an occupant rides in the vehicle when the vehicle is determined to be in an unmanned state.
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公开(公告)号：US20180241333A1
公开(公告)日：2018-08-23
申请号：US15752950
申请日：2016-06-23
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
CPC classification number: H02P21/18 , B60H1/3222 , H02P6/183 , H02P21/22
Abstract: An electric motor control device includes a control unit that controls operation of a drive circuit supplying electric power to an electric motor and a current sensor that detects current generated in the electric motor. The control unit detects fundamental high frequency current generated when the electric motor is applied with fundamental high frequency voltage for estimating the magnetic pole position, selects first electric angle and second electric angle corresponding to a d-axis direction of the magnetic pole position, detects first specific high frequency current generated when a position of the first electric angle is applied with specific high frequency voltage and second specific high frequency current generated when a position of the second electric angle is applied with the specific high frequency voltage, and compares the first and the second specific high frequency currents to estimate a positive d-axis direction of the magnetic pole position.
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公开(公告)号：US20180141438A1
公开(公告)日：2018-05-24
申请号：US15570500
申请日：2016-03-29
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI , Tomoyuki SUMI
CPC classification number: B60L1/00 , B60L1/003 , B60L1/02 , B60L1/08 , B60L58/12 , H02J1/08 , H02J1/14 , H02J13/0003 , H02P27/06
Abstract: A power control system supplies electric power to a plurality of power consumption devices which are provided to an electric vehicle. This system includes: a high voltage battery which is an electric power supply source; a plurality of device controllers which are provided to the respective power consumption devices and which control operations of the respective power consumption devices; and an overall controller which overall controls the plurality of device controllers. At least one of the device controllers performs an electric power restriction that restricts a consumed electric power in a corresponding power consumption device so as to allow the consumed electric power in the corresponding power consumption device to fall within an electric power allocated by the overall controller while simultaneously maintaining an operation of the corresponding power consumption device stably.
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Patent Agency Ranking
公开(公告)号：US20170370626A1
公开(公告)日：2017-12-28
申请号：US15543287
申请日：2016-01-27
Applicant: DENSO CORPORATION
Inventor： Teruaki OHYAMA , Yuji KAMIYA , Tomoyuki SUMI , Akitomo YAMANAKA , Koji SAKAI
CPC classification number: F25B31/006 , B60H1/3205 , B60H1/3225 , B60H2001/3257 , B60H2001/3272 , B60H2001/3292 , F04B39/06 , F04D25/06 , F04D27/004 , F25B5/04 , F25B6/04 , F25B49/005 , F25B49/022 , F25B2400/0409 , F25B2400/0411 , F25B2500/08 , F25B2600/021 , F25B2600/0253 , F25B2700/21154 , F25B2700/21156
Abstract: An air conditioning apparatus includes an electric compressor, an inverter, a temperature detection element, and an ECU. The electric compressor compresses a refrigerant drawn from a refrigerant intake port and discharges the refrigerant from a refrigerant discharge port. The inverter is integrated with the electric compressor so as to be cooled by the drawn refrigerant, and operates the electric compressor according to a control signal. The temperature detection element detects a temperature of the inverter. The ECU outputs a control signal to control the inverter. The ECU performs any one or both of a control for reducing a self-cooling amount of the electric compressor and a control for increasing a self-heat generation amount of the inverter with respect to the inverter when the temperature detected by the temperature detection element is lower than a predetermined reference temperature.
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公开(公告)号：US20170040925A1
公开(公告)日：2017-02-09
申请号：US15304614
申请日：2015-07-20
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
CPC classification number: H02P29/40 , B60H1/3222 , F04B35/04 , F04B39/00 , F04B49/06 , F04B49/065 , F04B49/10 , H02P27/06 , H02P29/0241 , H02P29/62
Abstract: An electric compressor for a vehicle includes: an electric motor having a coil; an inverter device for the electric motor; a capacitor that stores energy smaller than coil energy, is connected to an input end of the inverter device, and accumulates a charge according to an operation of the electric motor; a voltage detection device for the capacitor; an abnormality determination device that determines an abnormality based on the voltage of the capacitor; and a control device that performs a reflux mode in which the inverter device is controlled to flow back a current to the coil of the electric motor in case of abnormality.
Abstract translation: 一种用于车辆的电动压缩机包括：具有线圈的电动机; 用于电动机的逆变器装置; 存储能量小于线圈能量的电容器连接到逆变器装置的输入端，并且根据电动机的操作累积电荷; 用于电容器的电压检测装置; 异常判定装置，其基于电容器的电压确定异常; 以及控制装置，其执行回流模式，其中控制逆变器装置在异常的情况下使电流回流到电动机的线圈。
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公开(公告)号：US20160105138A1
公开(公告)日：2016-04-14
申请号：US14894545
申请日：2014-05-28
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
IPC: H02P27/08
CPC classification number: H02P27/085
Abstract: When a control device determines, based on a sampling number in one period of a target modulation factor waveform, that the sampling number is less than a predetermined value in a case where a two-phase modulation scheme is selected and the target rotation number increases, the control device switches a modulation scheme from the two-phase modulation scheme to a three-phase modulation scheme.
Abstract translation: 当控制装置基于目标调制因子波形的一个周期中的采样数，在选择两相调制方案并且目标转数增加的情况下确定采样数小于预定值时， 控制装置将调制方案从两相调制方案切换到三相调制方案。
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公开(公告)号：US20150303859A1
公开(公告)日：2015-10-22
申请号：US14418180
申请日：2013-07-29
Applicant: DENSO CORPORATION
Inventor： Kouichi YAMADA , Koji SAKAI
CPC classification number: H02P27/085 , B60L15/02 , B60L15/20 , B60L2270/147 , H02P5/74 , Y02T10/645 , Y02T10/646 , Y02T10/72 , Y02T10/7275
Abstract: A motor drive apparatus includes multiple inverter circuits provided corresponding, respectively, to multiple motors, a controller configured to control the inverter circuits using switching signals, a detector configured to detect a current ripple generated by switching operations of the inverter circuits. The controller operates in a first mode and a second mode. In the first mode, carrier wave frequencies of reference carrier waves used to generate the switching signals for all the motors are set to the same basic frequency. In the second mode, the carrier frequency of the motor having a higher priority is set to the basic frequency, and the carrier frequency of the motor having a lower priority is set to a preset shift frequency. When the current ripple is not less than a predetermined value, a transition occurs from the first mode to the second mode.
Abstract translation: 电动机驱动装置包括分别与多个电动机对应地设置的多个逆变器电路，配置为使用开关信号来控制逆变器电路的控制器，被配置为检测由逆变器电路的开关动作产生的电流纹波的检测器。 控制器以第一模式和第二模式操作。 在第一模式中，用于产生用于所有电动机的开关信号的参考载波的载波频率被设置为相同的基本频率。 在第二模式中，具有较高优先级的电动机的载波频率被设置为基本频率，并且将具有较低优先级的电动机的载波频率设置为预设的频移。 当电流纹波不小于预定值时，从第一模式发生到第二模式。
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公开(公告)号：US20150295532A1
公开(公告)日：2015-10-15
申请号：US14415098
申请日：2013-06-06
Applicant: DENSO CORPORATION
Inventor： Koji SAKAI
CPC classification number: H02P29/02 , F04B35/04 , F04B49/06 , F04B49/065 , F04B49/103 , F04B2203/0201 , F04B2203/0202 , F04B2203/0205 , F04C18/0215 , F04C28/06 , F04C28/28 , F04C29/047 , F04C2240/403 , F04C2240/808 , F04C2240/81 , G06F1/06 , H02H6/00 , H02H7/08 , H02M1/36 , H02M7/5387 , H02M7/53871 , H02M2001/327 , H02P6/28 , H02P23/0027 , H02P23/0072 , H02P23/24 , H02P27/085 , H02P29/68
Abstract: A controller for an electric compressor sets a temperature rise region A, a temperature drop region B, and a steady region C from change in temperature of switching elements, and sets a carrier frequency for each of the set regions. In the region A, the carrier frequency is changed according to the element temperature so that the carrier frequency decreases with increase of the element temperature at startup of a motor. In the region B and the region C, the carrier frequency is changed according to the number of revolutions of a compression mechanism, so that the carrier frequency decreases with increase of the number of revolutions of the compression mechanism, regardless of the element temperature.
Abstract translation: 用于电动压缩机的控制器根据开关元件的温度变化设定温度上升区域A，温度降低区域B和稳定区域C，并且为每个设定区域设定载波频率。 在区域A中，载波频率根据元件温度而改变，使得载波频率随着电机启动时元件温度的升高而降低。 在区域B和区域C中，载波频率根据压缩机构的转速而变化，从而随着压缩机构的转速的增加，载波频率减小，而与元件温度无关。
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