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公开(公告)号:US20190066899A1
公开(公告)日:2019-02-28
申请号:US16080030
申请日:2017-02-10
Applicant: DENSO CORPORATION
Inventor: Akira SAKAMOTO , Naoya KONDO
Abstract: A temperature regulating device regulates temperature of the magnetic circuit component incorporated in a power converter and including a magnetic core and a coil wound around the magnetic core and includes a cooling device that cools the magnetic circuit component, a temperature estimation device that estimates a temperature of the magnetic circuit component, a target temperature determination device that determines a target temperature of the magnetic circuit component, at which a loss of the magnetic circuit component is lowered, based on a relationship between temperature and loss of the magnetic circuit component, and a cooling suppressor that, when the temperature of the magnetic circuit component estimated by the temperature estimation device is equal to or lower than a predetermined temperature lower than the target temperature, suppresses the cooling of the magnetic circuit component by the cooling device so that the temperature of the magnetic circuit component reaches the target temperature.
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公开(公告)号:US20240372431A1
公开(公告)日:2024-11-07
申请号:US18778318
申请日:2024-07-19
Applicant: DENSO CORPORATION
Inventor: Masaki AMAKAWA , Akira SAKAMOTO
Abstract: A rotary electric machine includes a rotor directly joined to an output shaft of an internal-combustion engine. The rotary electric machine includes a first housing, a second housing that is mounted to the first housing and is fixed to a housing of the internal-combustion engine, a stator that is fixed to the first housing or the second housing, and a holding part that is provided to the second housing and holds the rotor so as to be rotatable with respect to the stator at a predetermined position. The rotor includes a joint part directly joined to the output shaft and rotates with respect to the stator at the predetermined position. The first housing and the second housing accommodate the stator and the rotor in a state in which the joint part is capable of being directly joined to the output shaft.
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公开(公告)号:US20230331092A1
公开(公告)日:2023-10-19
申请号:US18213334
申请日:2023-06-23
Applicant: DENSO CORPORATION
Inventor: Haibo LIU , Keisuke KAWAI , Akira SAKAMOTO , Tatsuya TAKAGI , Shigeru KAMIO
IPC: B60L7/18
CPC classification number: B60L7/18 , B60L2240/423 , B60L2260/22
Abstract: A control device for a vehicle includes an operation controller that controls operations of a rotating electric machine mounted to the vehicle, a first torque detector that detects a traveling torque which is a braking/driving torque to be output from the rotating electric machine when the vehicle is traveling, a second torque detector that detects a standstill torque which is a braking/driving torque to be output from the rotating electric machine upon the vehicle coming to a stop, and a waveform setter that sets a stop waveform which is a waveform indicating a time variation in the braking/driving torque output from the rotating electric machine from the traveling torque to the standstill torque. The operation controller performs a stop process that is a process to bring the vehicle to a stop while changing the braking/driving torque output from the rotating electric machine in accordance with the stop waveform.
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公开(公告)号:US20170047156A1
公开(公告)日:2017-02-16
申请号:US15307071
申请日:2015-05-21
Applicant: DENSO CORPORATION
Inventor: Akira SAKAMOTO , Kazuhiro UMETANI , Naoya KONDOU
IPC: H01F27/255 , H01F27/16 , H01F27/28
CPC classification number: H01F27/255 , H01F27/16 , H01F27/22 , H01F27/2823 , H01F27/38 , H01F37/00
Abstract: A reactor includes a magnetic core and a plurality of coils disposed adjacent to each other and electrically connected to each other. The plurality of coils includes an intermediate coil inducing a magnetic flux which does not interlink with an end of the magnetic core, and magnetic paths forming at least two closed magnetic paths run through a portion inside the intermediate coil.
Abstract translation: 电抗器包括磁芯和彼此相邻设置并彼此电连接的多个线圈。 多个线圈包括一个引导不与磁芯的端部相互连接的磁通的中间线圈,以及形成至少两个闭合磁路的磁路穿过中间线圈内部的一部分。
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公开(公告)号:US20150326031A1
公开(公告)日:2015-11-12
申请号:US14648503
申请日:2013-11-29
Applicant: DENSO CORPORATION
Inventor: Nobuhisa YAMAGUCHI , Akira SAKAMOTO , Kouji MAZAKI , Kouki NAGURA
IPC: H02J5/00
CPC classification number: H02J50/12 , B60L11/1812 , B60L11/182 , B60L2210/30 , B60L2210/40 , H02J7/0054 , H02J7/025 , H02J7/04 , H02J17/00 , H02J50/10 , H02J50/80 , Y02T10/7005 , Y02T10/7072 , Y02T10/7241 , Y02T90/122 , Y02T90/127 , Y02T90/14
Abstract: A non-contact power supply apparatus includes a transmission-side pad, a transmission-side resonant circuit, a reception-side pad, a reception-side resonant circuit, a power transmission circuit, a power reception circuit, and a control circuit. The control circuit controls an alternating-current voltage supplied to the transmission-side pad and an alternating-current voltage supplied to the power reception circuit, so that a power factor of the alternating current supplied from the power transmission circuit to the transmission-side pad connected to the transmission-side resonant circuit and direct-current power supplied from the power supply circuit to an on-board battery are respectively set to target values. As a result, change in power factor can be suppressed even when the coupling coefficient of the transmission-side pad and the reception-side pad changes, and predetermined electric power can be transmitted.
Abstract translation: 非接触式电源装置包括发送侧焊盘,发送侧谐振电路,接收侧焊盘,接收侧谐振电路,电力传输电路,电力接收电路和控制电路。 控制电路控制提供给发送侧焊盘的交流电压和提供给电力接收电路的交流电压,使得从电力传输电路向发送侧衬垫提供的交流电的功率因数 连接到发送侧谐振电路和从电源电路向车载电池供给的直流电力分别设定为目标值。 结果,即使发送侧焊盘和接收侧焊盘的耦合系数发生变化,也能够抑制功率因数的变化,能够发送规定的电力。
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公开(公告)号:US20230366361A1
公开(公告)日:2023-11-16
申请号:US18226551
申请日:2023-07-26
Applicant: DENSO CORPORATION
Inventor: Akira SAKAMOTO , Keisuke KAWAI , Yuichi HANDA , Syuya KAMIZONO
IPC: F02D45/00
CPC classification number: F02D45/00 , F02D2250/24 , F02D2250/22 , F02D2200/1004
Abstract: A control apparatus for a motor generator that is connected to an internal combustion engine. The control apparatus estimates an estimated torque pulsation that is an estimation value of torque pulsation of the internal combustion engine. The control apparatus controls the motor generator to reduce generated power and suppress decrease in a rotation speed of the internal combustion engine, when a negative torque that obstructs rotation of the internal combustion engine is generated in the estimated torque pulsation of the internal combustion engine.
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公开(公告)号:US20230365002A1
公开(公告)日:2023-11-16
申请号:US18224177
申请日:2023-07-20
Applicant: DENSO CORPORATION
Inventor: Haibo LIU , Keisuke KAWAI , Akira SAKAMOTO , Tatsuya TAKAGI , Shigeru KAMIO
IPC: B60L15/20
CPC classification number: B60L15/20
Abstract: A control apparatus includes an operation control unit; a first torque command value setting unit that sets a required torque command value; a second torque command value setting unit that sets a vehicle-stop torque command value; and a waveform setting unit that sets a torque waveform. The operation control unit controls the output torque of the rotary electric machine along the torque waveform when changing the output torque of the rotary electric machine. The waveform setting unit utilizes a first torque waveform and subsequently utilizes a second torque waveform as the torque waveform, the first torque waveform being capable of attenuating a vibration of the vehicle in a pitch direction, the second torque waveform being capable of suppressing a vibration in a power transmission member provided in a power transmission system for transmitting a torque of the rotary is electric machine to wheels.
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公开(公告)号:US20170278606A1
公开(公告)日:2017-09-28
申请号:US15311882
申请日:2015-06-30
Applicant: DENSO CORPORATION
Inventor: Naoya KONDOU , Akira SAKAMOTO , Kazuhiro UMETANI
CPC classification number: H01F1/12 , H01F3/10 , H01F3/14 , H01F5/003 , H01F5/04 , H01F5/06 , H01F27/325 , H01F27/346 , H01F27/365 , H01F2003/106 , H01F2027/348
Abstract: A magnetic circuit component includes a magnetic core and a coil formed by winding a conductor around the magnetic core. The magnetic circuit component includes a magnetic material section that is formed from a soft magnetic material, and that covers a part of a surface of the coil or the entire surface of the coil and is disposed away from the magnetic core.
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公开(公告)号:US20160227677A1
公开(公告)日:2016-08-04
申请号:US15010403
申请日:2016-01-29
Applicant: DENSO CORPORATION
Inventor: Naoki HIRASAWA , Ryota TANABE , Tetsuya MATSUOKA , Kazuya TAKEUCHI , Akira SAKAMOTO
CPC classification number: H05K7/20927 , H01F27/10 , H01F27/24 , H01F27/255 , H01F27/2823 , H01F27/29 , H01F37/00 , H02M7/003
Abstract: An electric power converter includes a semiconductor module, a reactor having a coil and a core, and a cooler for cooling the semiconductor module and the reactor. The cooler has a coolant passage member having a coolant flow path. The coil of the reactor has an exposed coil portion exposed from the core. The exposed coil portion is in contact with the coolant passage member. The core has a core end face disposed flush with the exposed coil portion, and both the exposed coil portion and the core end face are in surface contact with the coolant passage member.
Abstract translation: 电力转换器包括半导体模块,具有线圈和芯的电抗器以及用于冷却半导体模块和电抗器的冷却器。 冷却器具有具有冷却剂流动路径的冷却剂通道构件。 反应器的线圈具有从芯部露出的暴露的线圈部分。 暴露的线圈部分与冷却剂通道构件接触。 芯具有与暴露的线圈部分齐平设置的芯端面,暴露的线圈部分和芯端面都与冷却剂通道构件表面接触。
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公开(公告)号:US20240120805A1
公开(公告)日:2024-04-11
申请号:US18389883
申请日:2023-12-20
Applicant: DENSO CORPORATION
Inventor: Masaki AMAKAWA , Yuichi HANDA , Keisuke KAWAI , Syuya KAMIZONO , Akira SAKAMOTO
IPC: H02K9/19 , H02K1/16 , H02K1/2791
CPC classification number: H02K9/19 , H02K1/16 , H02K1/2791
Abstract: A rotating electrical machine includes a stator equipped with a stator winding, a rotor arranged to face the stator, a housing in which the stator and the rotor are disposed, and a coolant supply unit. The coolant supply unit is located vertically above the stator and the rotor in the housing in a condition where the rotating electrical machine is mounted in place. The coolant supply unit works to deliver liquid coolant into the housing. A coolant guide is provided to direct the coolant, as supplied from the coolant supply unit, into an air gap between the stator and the rotor in the housing.
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