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1.发明授权公开(公告)号：US11975616B2
公开(公告)日：2024-05-07
申请号：US17596903
申请日：2019-07-04
CPC分类号： B60L3/0084 , B60L9/18 , B60L9/24 , H02P27/06 , B60L2200/26
摘要： An electric vehicle drive system includes: a reactor; and electric vehicle control apparatuses that control electric motors for driving an electric vehicle. Each of the electric vehicle control apparatuses includes: a capacitor that defines a filter circuit together with the reactor; an inverter circuit that supplies power to the corresponding one of the electric motors; and a control unit that controls the inverter circuit. The inverter circuit is housed in a housing together with the capacitor and the control unit. The reactor is connectable to each of the housings through an electric wire having any desired length. At least one of the electric wires connecting the reactor and the housings has a length of 2 meters or more.
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公开(公告)号：US11938986B2
公开(公告)日：2024-03-26
申请号：US17054584
申请日：2018-07-04
发明人： Michio Otsubo
CPC分类号： B61L3/008 , B60L9/18 , B60L2200/26 , B60L2240/423
摘要： A control device includes a changing rate calculator, a first threshold calculator, and a separation determiner. The control device determines whether a current collector is separate from a power line, in a power conversion system in which a power converter converts power supplied from the current collector to the primary side of the power converter into alternating-current (AC) power and supplies the AC power to a motor connected to the secondary side of the power converter. The changing rate calculator calculates a changing rate of the voltage at the primary side of the power converter. The first threshold calculator calculates a first threshold having the absolute value positively correlated with an output power from the power converter. The separation determiner compares the changing rate with the first threshold and determines whether the current collector is separate from the power line.
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公开(公告)号：US11427067B2
公开(公告)日：2022-08-30
申请号：US16981288
申请日：2019-03-19
发明人： Isao Toda , Seiyo Hirano , Kei Yonemori , Hideki Sanai
IPC分类号： B60K1/04 , B60L50/16 , B60K6/24 , B60K6/28 , B60K6/44 , B60L15/20 , B60W20/20 , B60K1/02 , B60K7/00 , H02K7/00 , B60W10/08 , B60W40/08 , B60L50/60 , B60K6/40 , B60K6/442 , B60K6/52 , B60L9/18 , B60L50/61 , B60L53/24 , B60L50/40 , B60W20/10 , B60K6/26
摘要： To provide a vehicle drive device capable of efficiently driving a vehicle by using in-wheel motors without falling into the vicious cycle between enhancement of driving via the motors and an increase in vehicle weight. The present invention is a vehicle drive device that uses in-wheel motors to drive a vehicle and includes in-wheel motors (20) that are provided in wheels (2b) of a vehicle (1) and drive wheels, in which the in-wheel motors generate the maximum output power in a high revolutions range equal to or more than a predetermined number of revolutions that is more than zero.
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4.发明授权公开(公告)号：US11211881B2
公开(公告)日：2021-12-28
申请号：US16962308
申请日：2018-10-15
申请人： HITACHI, LTD.
摘要： A power conversion device achieves size reduction and reliability by reducing the number of components of the system. The power conversion device has a semiconductor module of a half-bridge configuration in which two semiconductor elements are arranged in series. The semiconductor module has a cuboidal shape and has, along a longitudinal direction thereof, a positive pole terminal, a negative pole terminal, and terminals for inputting or outputting alternating current or for forming a single phase of the power conversion device. In the vertical direction corresponding to a widthwise direction of the cuboid, a plurality of the semiconductor modules are arranged vertically, forming a plurality of phases of the power conversion device. The semiconductor modules of the plurality of phases are installed in contact with a cooling unit, and one or more capacitors are disposed so as to face the cooling unit across the semiconductor modules of the plurality of phases.
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公开(公告)号：US11180017B2
公开(公告)日：2021-11-23
申请号：US15748561
申请日：2016-07-22
申请人： DENSO CORPORATION
发明人： Tomoyuki Shinkai , Takashi Sato , Takurou Nakaoka , Takeo Maekawa , Keiji Kondou
IPC分类号： B60K1/02 , B60K6/405 , B60K6/26 , B60K6/48 , B60K6/52 , B60L15/20 , B60K17/04 , B60K6/40 , B60K1/00 , B60L50/16 , B60L50/15 , B60K6/448 , B60K6/387 , B60L9/18 , B60K17/02 , B60L15/22 , B60K6/54 , B60K6/543 , B60K1/04 , B60K6/547 , B60K17/16
摘要： A device for driving a vehicle including an engine that serves as a power source of the vehicle, and a transmission that is connected to the engine, the engine and the transmission being arranged transversely such that an axial direction of an output shaft of the engine accords with a right-left direction of the vehicle includes a motor generator (MG) that serves as a power source of the vehicle, and a speed reducer that is connected to the MG. The MG and at least a part of the speed reducer are arranged outside of an engine compartment that accommodates the engine and the transmission. An output shaft of the speed reducer is connected to a power transmission system, which transmits power of an output shaft of the transmission to a drive shaft of a vehicle wheel to be capable of transmitting its power to the power transmission system.
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公开(公告)号：US11014626B2
公开(公告)日：2021-05-25
申请号：US16454638
申请日：2019-06-27
发明人： Mitsuharu Hasumi
IPC分类号： B62M6/50 , B60W30/188 , B60W40/076 , G01P3/487 , B60L15/10 , B62M6/80 , B60L9/18 , B60L15/20 , B62M6/45
摘要： An electric power assist system generates an appropriate level of assist power while an electric assist vehicle is running on a slope and includes an electric motor that generates an assist power to assist human power of a rider of the electric assist vehicle, a controller that controls a magnitude of the assist power to be generated by the electric motor, and an acceleration sensor that outputs an acceleration signal representing an acceleration in a travel direction of the electric assist vehicle. The controller acquires speed information representing a running speed of the electric assist vehicle based on an external signal, detects an inclination angle of a road surface based on the speed information and the acceleration signal, and causes the electric motor to generate an assist power of a magnitude in accordance with the inclination angle.
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公开(公告)号：US10994596B2
公开(公告)日：2021-05-04
申请号：US16707275
申请日：2019-12-09
发明人： Junichi Yukawa
摘要： A vehicle driving device includes a permanent magnet motor, an inverter that drives the permanent magnet motor, a DC-to-DC converter that is a buck-boost converter and connected to the inverter, and a driving battery that is connected to the DC-to-DC converter. The DC-to-DC converter outputs, to the inverter, (i) a voltage inputted to the DC-to-DC converter of a positive electrode of the driving battery as-is and (ii) a voltage inputted to the DC-to-DC converter of a negative electrode of the driving battery after increasing the voltage in a negative direction.
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公开(公告)号：US20210114466A1
公开(公告)日：2021-04-22
申请号：US17254310
申请日：2018-11-22
发明人： Long WANG , Xinjian CHEN , Bin ZHANG , Wenguang CHEN , Chaolu CHEN , Rong MOU , Anhui JI , Xiong LIU , Nannan XU , Jun YANG , Zhengliang GAO , Haobin XIONG , Mingliang ZENG , Dongpo ZHU
摘要： A method for controlling a main circuit of a traction system is provided. The method includes: under a braking condition, controlling a protection module to be turned off; controlling the protection module to be turned on and monitoring a first current detected by a first current sensor in a case that a rail vehicle runs on a charged third rail; and controlling the protection module to be turned off and monitoring whether the rail vehicle runs on a charged third rail in a case that the first current is less than a first preset current.
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公开(公告)号：US10933875B2
公开(公告)日：2021-03-02
申请号：US16195031
申请日：2018-11-19
申请人： NTN CORPORATION
发明人： Yuta Suzuki
IPC分类号： B60W30/18 , B60W40/068 , B60W10/08 , B60L9/18 , B60L15/20 , B62D9/00 , B62D6/00 , B60W40/114 , B60T8/172 , B60T8/1755 , B60W30/045 , B60W10/184 , B60W10/18 , B62D15/02
摘要： Provided is a vehicle turning control device which prevents a target yaw rate from being unstable, even if a control gain is changed in accordance with the magnitude of a yaw rate deviation or a road surface frictional coefficient. This vehicle turning control device includes a target yaw rate correction (32). The correction (32) calculates a target yaw rate with respect to the control gain determined based on a vehicle traveling information, using at least one of a plurality of calculated target yaw rates. The control gain is determined such that, as a road surface frictional coefficient decreases or as a yaw rate deviation increases, a yaw response characteristic approaches a basic yaw response characteristic from an initial yaw response characteristic.
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公开(公告)号：US20210021124A1
公开(公告)日：2021-01-21
申请号：US16979944
申请日：2019-03-13
发明人： Magnus JANSSON , Henrik MOSSKULL , Peter KRAFKA , Daniel WAGNER
摘要： A system for feeding electric power to a first consumer (1) comprises an input filter (6) with an input configured to be connected to a DC energy source and a DC intermediate link (3) connected to an output (14) of the input filter. A converter (12) is with an input connected to the DC intermediate link and has an output to be connected to said first consumer (1). The unit (16) controls the converter to obtain feeding of electric power requested by the first consumer independently of variations of the voltage on the DC link (3). An assembly is configured to act stabilizing on that voltage by controlling the converter to add a first power component to the power to be fed to the consumer. A second consumer (19) is controlled to consume a second power component to either assist the control of the converter to obtain the stabilization or alone take care thereof.
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