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公开(公告)号：US20240227776A9
公开(公告)日：2024-07-11
申请号：US18400486
申请日：2023-12-29
Applicant: DENSO CORPORATION
Inventor： Syuya KAMIZONO , Akira Sakamoto , Yuichi Handa , Masaki Amakawa , Keisuke Kawai
CPC classification number: B60W20/15 , F02N11/0859 , H02P23/04 , B60W2710/083 , F02N2200/042 , F02N2250/00
Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.
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公开(公告)号：US20240123834A1
公开(公告)日：2024-04-18
申请号：US18541414
申请日：2023-12-15
Applicant: DENSO CORPORATION
Inventor： Haibo LIU , Keisuke Kawai , Akira Sakamoto , Shigeru Kamio , Tatsuya Takagi
IPC: B60L7/26
CPC classification number: B60L7/26 , B60L2240/12 , B60L2240/423
Abstract: A control device includes a switching control unit, an information acquisition unit, and a difference acquisition unit. The switching control unit performs switching control that increases braking torque of the braking device while decreasing braking torque of the rotating electrical machine, when a vehicle is decelerated. The information acquisition unit acquires information on a state of the vehicle. The difference acquisition unit acquires a braking torque difference indicating a difference between braking torque required for keeping a stopped state of the vehicle and braking torque of the braking device, when the vehicle is stopped. After the information acquisition unit detects the stopped state of the vehicle, the switching control unit corrects output torque of the rotating electrical machine based on the braking torque difference.
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公开(公告)号：US09682631B2
公开(公告)日：2017-06-20
申请号：US14039071
申请日：2013-09-27
Applicant: DENSO CORPORATION
Inventor： Akira Sakamoto , Nobuhisa Yamaguchi
IPC: B60L11/18
CPC classification number: B60L11/182 , B60L11/1824 , B60L11/1833 , B60L11/1842 , B60L11/1844 , B60L11/1846 , B60L2210/12 , B60L2210/14 , B60L2210/30 , B60L2210/40 , B60L2240/527 , B60L2240/529 , Y02E60/721 , Y02T10/7005 , Y02T10/7072 , Y02T10/7225 , Y02T10/7233 , Y02T10/7241 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y02T90/169 , Y04S10/126 , Y04S30/14
Abstract: A power-supply-side coil receives an alternating current from an AC power source to produce a magnetic flux. A power-supply-side capacitor is connected in parallel with the power-supply-side coil. A power-supply-side filter circuit includes a reactor and a capacitor, which are connected in series between the AC power source and the power-supply-side coil. A power-receiving-side coil is interlinked with a magnetic flux produced by the power-supply-side coil to produce an alternating current. The power-supply-side filter circuit, the power-supply-side capacitor, and the power-supply-side form a circuit having an impedance having a frequency characteristic, in which a frequency of a minimum point formed on a high-frequency side relative to a maximum point is greater than a frequency of a fundamental wave of an alternating current supplied from the AC power source and is less than a frequency of a third order wave of the fundamental wave.
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4.发明授权公开(公告)号：US12253044B2
公开(公告)日：2025-03-18
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 , H02P9/04 , H02P101/45
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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Patent Agency Ranking
公开(公告)号：US11430596B2
公开(公告)日：2022-08-30
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：US09793719B2
公开(公告)日：2017-10-17
申请号：US14648503
申请日：2013-11-29
Applicant: DENSO CORPORATION
Inventor： Nobuhisa Yamaguchi , Akira Sakamoto , Kouji Mazaki , Kouki Nagura
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.
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公开(公告)号：US20240132049A1
公开(公告)日：2024-04-25
申请号：US18400486
申请日：2023-12-29
Applicant: DENSO CORPORATION
Inventor： Syuya KAMIZONO , Akira Sakamoto , Yuichi Handa , Masaki Amakawa , Keisuke Kawai
CPC classification number: B60W20/15 , F02N11/0859 , H02P23/04 , B60W2710/083 , F02N2200/042 , F02N2250/00
Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.
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公开(公告)号：US10410778B2
公开(公告)日：2019-09-10
申请号：US15311882
申请日：2015-06-30
Applicant: DENSO CORPORATION
Inventor： Naoya Kondou , Akira Sakamoto , Kazuhiro Umetani
IPC: H01F5/00 , H01F1/12 , H01F3/14 , H01F5/04 , H01F5/06 , H01F3/10 , H01F27/32 , H01F27/34 , H01F27/36
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：US20140285027A1
公开(公告)日：2014-09-25
申请号：US14039071
申请日：2013-09-27
Applicant: DENSO CORPORATION
Inventor： Akira Sakamoto , Nobuhisa Yamaguchi
IPC: B60L11/18
CPC classification number: B60L11/182 , B60L11/1824 , B60L11/1833 , B60L11/1842 , B60L11/1844 , B60L11/1846 , B60L2210/12 , B60L2210/14 , B60L2210/30 , B60L2210/40 , B60L2240/527 , B60L2240/529 , Y02E60/721 , Y02T10/7005 , Y02T10/7072 , Y02T10/7225 , Y02T10/7233 , Y02T10/7241 , Y02T90/121 , Y02T90/122 , Y02T90/125 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y02T90/169 , Y04S10/126 , Y04S30/14
Abstract: A power-supply-side coil receives an alternating current from an AC power source to produce a magnetic flux. A power-supply-side capacitor is connected in parallel with the power-supply-side coil. A power-supply-side filter circuit includes a reactor and a capacitor, which are connected in series between the AC power source and the power-supply-side coil. A power-receiving-side coil is interlinked with a magnetic flux produced by the power-supply-side coil to produce an alternating current. The power-supply-side filter circuit, the power-supply-side capacitor, and the power-supply-side form a circuit having an impedance having a frequency characteristic, in which a frequency of a minimum point formed on a high-frequency side relative to a maximum point is greater than a frequency of a fundamental wave of an alternating current supplied from the AC power source and is less than a frequency of a third order wave of the fundamental wave.
Abstract translation: 电源侧线圈接收来自交流电源的交流电，产生磁通。 电源侧电容器与电源侧线圈并联连接。 电源侧滤波电路包括串联在AC电源和电源侧线圈之间的电抗器和电容器。 电力接收侧线圈与由电源侧线圈产生的磁通相互连接以产生交流电。 电源侧滤波器电路，电源侧电容器和电源侧形成具有频率特性的阻抗的电路，其中在高频侧形成的最小点的频率 相对于最大点大于从交流电源供给的交流电的基波的频率，并且小于基波的三阶波的频率。
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