公开(公告)号：US20240351477A1

公开(公告)日：2024-10-24

申请号：US18759652

申请日：2024-06-28

Applicant: BYD COMPANY LIMITED

Inventor： Ke ZHANG ,  Jiannian LI ,  Rongfang WU ,  Zizhu GUO ,  Yi PAN

IPC: B60L58/27 ,  B60L15/02 ,  B60L58/18 ,  H02J7/00

CPC classification number: B60L58/27 ,  B60L15/02 ,  B60L58/18 ,  H02J7/0013

Abstract: A heating circuit of a power battery is provided. The power battery includes a first battery core group and a second battery core group connected in series. The heating circuit includes an inverter, an alternating current motor, and a first controller. A neutral point of the alternating current motor is connected to a first connection point between the first battery core group and the second battery core group. The first controller is configured to input a driving signal to control the inverter to alternately connect the first battery core group to the alternating current motor and the second battery core group to the alternating current motor, to cause the first battery core group and the second battery core group to charge each other.

公开(公告)号：US11772788B1

公开(公告)日：2023-10-03

申请号：US17900474

申请日：2022-08-31

Applicant: Rolls-Royce Deutschland Ltd & Co KG

Inventor： Uwe Waltrich ,  Stanley Buchert

IPC: B64C29/00 ,  H05K7/20 ,  H02M7/537 ,  H05K7/14 ,  H02M7/00 ,  B64D35/04 ,  B64D27/10 ,  B60L15/02 ,  B64D27/24 ,  B64D27/02

CPC classification number: B64C29/0033 ,  B60L15/02 ,  B64D27/10 ,  B64D27/24 ,  B64D35/04 ,  H02M7/003 ,  H02M7/537 ,  H05K7/1427 ,  H05K7/209 ,  B60L2200/10 ,  B60L2210/30 ,  B64D2027/026

Abstract: An electrical vertical takeoff and landing (eVTOL) aircraft includes an electrical propulsion unit that has a propeller or a fan configured to be driven to rotate by an electric motor arranged to receive electrical power from an inverter. The inverter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes at least one power semiconductor switching element. Each power semiconductor switching element is comprised in a power semiconductor prepackage. A heat sink is arranged to remove heat from the respective power semiconductor prepackage. The heat sink is spaced apart from the carrier substrate to define a heat sink gap between the carrier substrate and the heat sink. A converter parameter φ, which is defined as a size of the heat sink gap divided by a maximum electric field strength in the heat sink gap, is less than or equal to 20 nm2/V.

公开(公告)号：US20180290605A1

公开(公告)日：2018-10-11

申请号：US15943829

申请日：2018-04-03

Applicant: JTEKT CORPORATION

Inventor： Takehiro ITO ,  Satoru MIKAMO ,  Yuji FUJITA

IPC: B60R16/02 ,  G06F11/30

CPC classification number: B60R16/02 ,  B60L11/1803 ,  B60L15/007 ,  B60L15/02 ,  B60L2240/527 ,  B60L2260/40 ,  G06F11/3055 ,  H02M2001/325 ,  H02P27/00 ,  H02P27/04 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005

Abstract: Provided is a vehicle control system that appropriately performs synchronization control for a plurality of control systems. A monitoring circuit generates a command signal when only a first reset signal is input. The monitoring circuit generates a command signal when the state in which only the first reset signal is input is changed to the state in which the input of the first reset signal is stopped. With the command signal, a second clock signal is output to a timer generator as a second timing signal. With the command signal, the second clock signal generated by a second synchronization signal generating circuit is output to a first synchronization signal generating circuit, and a third clock signal generated by the first synchronization signal generating circuit is output to a timer generator as a first timing signal.

公开(公告)号：US10054660B2

公开(公告)日：2018-08-21

申请号：US15371598

申请日：2016-12-07

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Tanto Sugiarto

IPC: G01R1/02 ,  G01R35/00 ,  G01R31/02 ,  B60L15/02 ,  B60L11/18

CPC classification number: G01R35/005 ,  B60L15/02 ,  B60L50/51 ,  B60L2210/40 ,  G01R31/025 ,  H02P21/22 ,  H02P2205/01

Abstract: An electric-motor-control system with current sensor offset correction includes three current-sensors and a controller. Each of the three current-sensors is used to detect current through one of three windings of a Y-connected motor. The controller is in communication with the three current-sensors. The controller records periodically measurements of sensed-current indicated by each current-sensor while variable-current flows through each of the three windings, determines an x-offset and a y-offset of a rotating-vector indicated by a plurality of the measurements, and determines an offset-current of each of the three current-sensors based on the x-offset and the y-offset.

公开(公告)号：US20180138844A1

公开(公告)日：2018-05-17

申请号：US15637428

申请日：2017-06-29

Applicant: Mitsubishi Electric Corporation

Inventor： Shingo HARADA ,  Keiichi ENOKI ,  Masutaka WATANABE ,  Yoshimasa NISHIJIMA ,  Yasukazu MURATA ,  Michitaka FUJIWARA

IPC: H02P6/28 ,  H02M7/5387 ,  H02P27/08 ,  B60L11/18

CPC classification number: H02P6/28 ,  B60L11/1803 ,  B60L15/02 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  H02M1/32 ,  H02M7/5387 ,  H02M7/53875 ,  H02M2001/385 ,  H02P27/08 ,  H02P29/024

Abstract: An inverter control device and inverter control method are such that, when there is a possibility of induction voltage caused by a multi-phase motor exceeding a breakdown voltage of a switching element of an inverter, two of three phases are first interrupted at an appropriate timing in order to restrict induction voltage when shifting from a three-phase short circuit to an all-phase interruption, after which a shift is made to an all-phase interruption at a timing at which currents of the three phases reach the vicinity of zero, whereby a leap in a direct current bus voltage is restricted.

公开(公告)号：US09887663B2

公开(公告)日：2018-02-06

申请号：US15447129

申请日：2017-03-02

Applicant: HONDA MOTOR CO., LTD.

Inventor： Ken Kitaori ,  Masanari Fukuchi ,  Yoshihiro Ito ,  Satoshi Matsui

IPC: G05D23/00 ,  H02P29/60 ,  B60W20/14 ,  B60L7/14 ,  B60L11/08 ,  B60L11/12 ,  B60L11/14 ,  B60L15/02 ,  H02P27/06 ,  B60K6/442

CPC classification number: H02P29/60 ,  B60K6/442 ,  B60L3/0046 ,  B60L3/0061 ,  B60L7/14 ,  B60L7/18 ,  B60L7/26 ,  B60L11/08 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1861 ,  B60L11/1868 ,  B60L15/02 ,  B60L15/2009 ,  B60L15/2045 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/427 ,  B60L2240/429 ,  B60L2240/441 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2260/26 ,  B60W20/14 ,  B60W2510/087 ,  B60W2510/244 ,  B60Y2200/92 ,  H02P21/22 ,  H02P27/06 ,  H02P29/64 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/7066 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7283 ,  Y10S903/93 ,  Y10S903/947

Abstract: A vehicle includes an electric motor to move the vehicle. A motor driver is configured to convert direct-current power supplied from a voltage converter to an alternating-current power and to convert the alternating-current power supplied from the electric motor to direct-current power. Circuitry is configured to drive the electric motor with a first current value to generate a drive force to consume excess electric power. The first current value is different from a minimum current value to generate the same drive force. The circuitry is configured to drive the electric motor with a second current value smaller than the first current value to decrease the electric power consumption of the electric motor when a temperature of the electric motor exceeds a first threshold temperature or a temperature of the motor driver exceeds a second threshold temperature.

公开(公告)号：US09862287B2

公开(公告)日：2018-01-09

申请号：US14901516

申请日：2014-06-30

Applicant: BYD COMPANY LIMITED

Inventor： Xiaohua Tang ,  Guangming Yang ,  Xinxin Zhang ,  Zhiyong Du ,  Min Hu ,  Yilong Yu ,  Jian Liu ,  Zheqing Tang ,  Fu Tang

IPC: B60L11/18 ,  H02J3/32 ,  H02J7/02 ,  B60L1/00 ,  B60L15/00 ,  B60L15/02 ,  H02M7/487 ,  H04L12/10

CPC classification number: B60L11/185 ,  B60L1/006 ,  B60L11/1803 ,  B60L11/1811 ,  B60L11/1812 ,  B60L11/1816 ,  B60L11/1818 ,  B60L11/1838 ,  B60L15/007 ,  B60L15/02 ,  B60L2210/30 ,  B60L2210/40 ,  H02J3/32 ,  H02J5/00 ,  H02J7/02 ,  H02J7/022 ,  H02M7/487 ,  H04L12/10 ,  Y02E60/721 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T10/7258 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y04S10/126

Abstract: A power system for an electric vehicle, an electric vehicle and a motor controller for an electric vehicle are provided. The power system includes: a power battery (10); a charge-discharge socket (20); a three-level bidirectional DC-AC module (30); a motor control switch (40); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with a third terminal of the charge-discharge control module (50) and a third terminal of the motor control switch (40), and configured to control the charge-discharge control module (50) and the motor control switch (40) according to a current working mode of the power system.

公开(公告)号：US20170361732A1

公开(公告)日：2017-12-21

申请号：US15187380

申请日：2016-06-20

Applicant: Faraday&Future Inc.

Inventor： Stefan Grubic ,  Mengwei Campbell

IPC: B60L15/02 ,  H02P21/22 ,  H02P27/08

CPC classification number: B60L15/02 ,  B60L2210/42 ,  B60L2240/423 ,  H02P21/22 ,  H02P27/08 ,  H02P27/12

Abstract: Circuits, methods, and systems for driving a load are described. An exemplary driving circuit may include a plurality of switching devices and a controller electrically connected to the switching devices. The controller may be configured to receive a reference voltage signal indicating a target voltage for the driving circuit to generate to drive the load. The reference voltage signal may correspond to a reference space vector in a reference frame. The controller may also be configured to determine that the reference space vector falls within a holding region in which the reference voltage signal is subject to over-modulation. The controller may then generate an adjusted reference voltage signal by adjusting the reference space vector to match a predetermined space vector associated with the holding region. In addition, the controller may be configured to provide the adjusted reference voltage signal to the plurality of switching devices to drive the load.

公开(公告)号：US20170349059A1

公开(公告)日：2017-12-07

申请号：US15169987

申请日：2016-06-01

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Wei XU ,  Fazal Urrahman SYED

IPC: B60L15/02 ,  H02P6/182 ,  H02P27/08

CPC classification number: B60L15/02 ,  B60L2210/12 ,  B60L2210/14 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2260/42 ,  H02P6/182 ,  H02P27/08 ,  H02P2201/09 ,  Y02T10/7258

Abstract: A vehicle powertrain includes a DC-DC converter and a controller. The DC-DC converter is coupled between a traction battery and an inverter for an electric machine. The controller is configured to, in response to a rotational speed of the electric machine dropping below a back EMF threshold speed, transition to a current control based six step inverter mode and operate the DC-DC converter to output a voltage less than an open circuit voltage of the traction battery.

公开(公告)号：US09809129B2

公开(公告)日：2017-11-07

申请号：US14923432

申请日：2015-10-27

Applicant: THUNDER POWER NEW ENERGY VEHICLE DEVELOPMENT COMPANY LIMITED

Inventor： Sheng-Fu Lai

IPC: G06F19/00 ,  B60L15/02 ,  B60L15/20 ,  H02P27/06 ,  H02P5/00

CPC classification number: B60L15/02 ,  B60L15/2036 ,  B60L2220/42 ,  B60L2220/46 ,  B60L2240/24 ,  B60L2240/427 ,  B60L2250/26 ,  B60L2260/28 ,  H02P5/00 ,  H02P27/06 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7258 ,  Y02T10/7275

Abstract: A driving system for electric vehicles. The driving system may have two or more electric motors, each with voltage inputs, which are connected to the axles and tires of the vehicle. A variable input control may provide a signal that indicates its current operation position to a vehicle control unit. The vehicle control unit takes the information from the variable input control and determines how much power to send to each of the electric motors' voltage inputs.