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公开(公告)号：US20190275900A1
公开(公告)日：2019-09-12
申请号：US16281395
申请日：2019-02-21
发明人： Yoshitaka Niimi , Yoshihiko Hiroe , Keiji Kaita
摘要： An electrically driven vehicle includes an electrical storage device that includes a plurality of electrical storage bodies and that charges by a direct current electric power supply, and an electronic control unit that limits charge electric power supplied by the direct current electric power supply as an electrical storage amount of the electrical storage device increases. The plurality of the electrical storage bodies includes a first electrical storage body and a second electrical storage body. The electronic control unit performs adjustment control when charge by the direct current electric power supply is not carried out. The electronic control unit charges the first electrical storage body in priority to the second electrical storage body when charge by the direct current electric power supply is carried out.
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公开(公告)号：US09884568B2
公开(公告)日：2018-02-06
申请号：US15029858
申请日：2014-10-15
发明人： Yoshitaka Niimi , Wanleng Ang , Masaki Okamura , Shintaro Tsujii , Keisuke Morisaki , Hideaki Yaguchi
CPC分类号： B60L15/20 , B60K28/16 , B60L3/0076 , B60L3/10 , B60L3/102 , B60L3/106 , B60L3/108 , B60L7/003 , B60L15/2009 , B60L15/2018 , B60L2240/465 , B60L2260/10 , B60L2260/26 , B60T8/885 , B60T2201/04 , B60W30/18172 , Y02T10/644 , Y02T10/645 , Y02T10/7275
摘要： A control apparatus for a vehicle including a three-phase AC motor and a power converter, the control apparatus includes an ECU. The ECU is configured to determine whether a rotation speed of the three-phase AC motor is equal to or less than a predetermined threshold and whether a stopping operation of the vehicle is performed, to determine that the vehicle stops when the rotation speed is equal to or less than the predetermined threshold and the stopping operation is performed, to determine whether the vehicle skids, and to switch a state of the power converter to a state where all on one side of the first and second switching elements are turned off and at least one on the other side of the first and second switching elements is turned on when the ECU determines that the vehicle stops and that the vehicle does not skid.
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公开(公告)号：US11063462B2
公开(公告)日：2021-07-13
申请号：US16539273
申请日：2019-08-13
摘要： A charging apparatus includes: an electric power source circuit including a first inverter and a second inverter to drive one motor; and a charging port having a positive electrode terminal connected to a positive electrode side of a first storage battery, and a negative electrode terminal connected to a negative electrode side of a second storage battery. In the case where the battery charger outputs first electric power, the first storage battery and the second storage battery are connected in parallel when being charged with the first electric power. In the case where the battery charger outputs second electric power that is larger than the first electric power, the first storage battery and the second storage battery are connected in series when being charged with the second electric power.
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公开(公告)号：US11052842B2
公开(公告)日：2021-07-06
申请号：US16701333
申请日：2019-12-03
发明人： Yoshitaka Niimi , Naoyoshi Takamatsu , Shunya Kobayashi , Satoru Ito , Takuya Sakamoto , Hirotsugu Ohata , Shigeaki Goto , Shuji Tomura , Naoki Yanagizawa
摘要： A vehicle control device includes: first and second power supplies, and a control unit controlling to, when a remaining capacity difference between the first power supply and the second power supply is large, to reduce a first operating range, in which the connection state with the electrical load is controlled to be series connection state of the power supplies, and increase a second operating range, in which the connection state with the electrical load is controlled to be the parallel connection state of the power supplies or the single connection state of one of the power supplies having a larger remaining capacity, as compared with a case where the remaining capacity difference is small.
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公开(公告)号：US11034258B2
公开(公告)日：2021-06-15
申请号：US16672641
申请日：2019-11-04
发明人： Yoshitaka Niimi , Naoyoshi Takamatsu , Shunya Kobayashi , Satoru Ito , Takuya Sakamoto , Hirotsugu Ohata , Naoki Yanagizawa , Shuji Tomura , Shigeaki Goto
摘要： A power supply of a vehicle includes a first switching element, a second switching element, a third switching element, a first battery, a reactor element, a second battery, a smoothing capacitor, and a controller. When the connection state of the first battery and the second battery is switched from the series connection state to the parallel connection state, the controller is configured to perform a transition control so that a voltage of the smoothing capacitor is decreased to the higher of a voltage of the first battery and a voltage of the second battery, and perform a switching control to turn on the first switching element after a diode of the first switching element is energized.
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公开(公告)号：US20230322073A1
公开(公告)日：2023-10-12
申请号：US18158134
申请日：2023-01-23
发明人： Yoshitaka Niimi , Manabu Ishimoto
IPC分类号： B60K23/08 , B60K17/356 , B60K6/52
CPC分类号： B60K23/0808 , B60K6/52 , B60K17/356 , B60Y2200/92 , B60Y2400/82
摘要： When a required drive force of an engine becomes equal to or greater than a predetermined value that deteriorates the characteristics of an engine mount, torque serving as a required drive amount of a rear electric motor is increased, so that the required drive force of the engine can be reduced. As a result, crushing of the engine mount that supports the engine is reduced, so that engine vibration transmitted to a vehicle body via the engine mount can be reduced.
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公开(公告)号：US11628824B2
公开(公告)日：2023-04-18
申请号：US17360802
申请日：2021-06-28
发明人： Yoshitaka Niimi , Eiji Murase
摘要： A controller for a vehicle includes a controlling unit. In a case in which the target engine torque is less than or equal to a threshold, the controlling unit controls the engine such that the torque of the engine becomes equal to the target engine torque, and controls a motor-generator such that the torque of the motor-generator becomes equal to the target motor torque. Also, in a case in which the target engine torque is greater than the threshold, the controlling unit controls the engine such that the torque of the engine becomes less than or equal to the threshold, and controls the motor-generator such that the torque of the motor-generator increases.
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公开(公告)号：US10744897B2
公开(公告)日：2020-08-18
申请号：US16106511
申请日：2018-08-21
摘要： A power-supply apparatus includes: an energy storage unit including energy storage modules; switches conducting or shutting off a current and switching a connection state of the storage modules; a voltage control unit switching a voltage of the energy storage unit; drive units, connected to the energy storage unit in series, driving respective external rotating electrical machines; and a capacitor connected to the drive units. Further, the power-supply apparatus includes a control unit that, when the voltage control unit switches the voltages of the energy storage unit, supplies electric power regenerated in the drive units to the capacitor and discharges the capacitor, and after an absolute value of a voltage difference between a post-switching voltage of the energy storage unit and a voltage of the capacitor is less than a predetermined value, controls so that the post-switching voltage of the energy storage unit is applied to the capacitor.
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公开(公告)号：US09660543B2
公开(公告)日：2017-05-23
申请号：US15064103
申请日：2016-03-08
发明人： Kenichi Takagi , Shuntaro Inoue , Takahide Sugiyama , Kenichiro Nagashita , Yoshitaka Niimi , Masaki Okamura
CPC分类号： H02M3/33546 , H02M3/158 , H02M3/33561 , H02M3/33576 , H02M3/33584 , H02M2001/0032 , H02M2001/0048 , Y02B70/1491 , Y02B70/16
摘要： An electric power conversion circuit system for reducing core loss in a transformer particularly during light loading and improving conversion efficiency during light loading comprising an electric power conversion circuit composed of a primary side conversion circuit having a left arm and a right arm and a secondary side conversion circuit having a left arm and a right arm, and a control circuit for controlling switching of switching transistors of the first side conversion circuit and the secondary side conversion circuit. When the output voltage is at a relatively light load, the control circuit controls to change the duty of the transmitting side among the primary side conversion circuit and the secondary side conversion circuit and controls to change the half-bridge phase differences of the left arm and the right arm of the primary side conversion circuit and the secondary side conversion circuit, respectively.
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公开(公告)号：US11411410B2
公开(公告)日：2022-08-09
申请号：US16680813
申请日：2019-11-12
IPC分类号： H02J7/00
摘要： A charging device includes: a power supply circuit including a first inverter connected between a first storage battery and a load, and a second inverter connected between a second storage battery and the load, the power supply circuit being configured to drive the one load; a charging port configured to be connected to an external power supply when the first storage battery and the second storage battery are charged with power from the external power supply; and a relay configured to allow current to bypass the first inverter, the second inverter, and the load between a positive electrode terminal of the charging port and a negative electrode terminal of the charging port, when the first storage battery and the second storage battery are charged with the power from the external power supply.
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