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41. 发明申请

US20220355705A1 POWER SYSTEM FOR A VEHICLE 有权
公开(公告)号：US20220355705A1
公开(公告)日：2022-11-10
申请号：US17540103
申请日：2021-12-01
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION
发明人： Jae Min Kwon
IPC分类号： B60L58/22 , H02J7/00 , B60L50/60
摘要： A power system for a vehicle includes: a high voltage battery; a low voltage DC-DC converter configured to step down a voltage of the high voltage battery and to output the stepped down voltage; a low voltage battery charged by an output current of the low voltage DC-DC converter, where the low voltage battery includes a first cell group including a plurality of battery cells, and a second cell group connected in parallel with the first cell group and including a plurality of battery cells; and a plurality of switches configured to electrically connect or disconnect the first cell group or the second cell group with the low voltage DC-DC converter, electrical loads configured to receive power from at least one of the low voltage DC-DC converter and the low voltage battery; and a controller configured to control opening or closing of the plurality of switches.

42. 发明授权

US11411411B2 Device and method for balancing an energy storage module 有权
公开(公告)号：US11411411B2
公开(公告)日：2022-08-09
申请号：US16693537
申请日：2019-11-25
申请人： Bayerische Motoren Werke Aktiengesellschaft
发明人： Tobias Hollweg , Johannes Kurtz
IPC分类号： H02J7/00 , B60L50/64 , B60L58/22 , B60L58/12 , B60L58/16 , H01M10/42 , H01M10/44 , H01M10/48
摘要： A device balances an energy storage module having multiple energy storage cells connected in series. The device includes: an interface for communication with a monitoring electronics system of the energy storage module; a charge determining device for determining a relative electrical charge quantity based on respective cell voltages and a respective resting voltage characteristic curve for each energy storage cell; a balancing requirement calculation unit for determining a respective relative balancing requirement by forming a difference between the relative electrical charge quantity of a respective energy storage cell and the relative electrical charge quantity of the energy storage cell for which the lowest relative electrical charge quantity was determined, for every energy storage cell with the exception of the energy storage cell for which the lowest relative electrical charge quantity was determined, and for determining an absolute balancing requirement for each energy storage cell; a discharging circuit which is configured to be connected to the energy storage module in such a way that a respective energy storage cell can be separately discharged by the discharging circuit; and a control device that can control the discharging circuit in such a way that the respective determined absolute balancing requirement can be removed from the respective energy storage cells.

43. 发明授权

US11351887B2 Management device and power supply system 有权
公开(公告)号：US11351887B2
公开(公告)日：2022-06-07
申请号：US16954361
申请日：2018-11-15
申请人： SANYO Electric Co., Ltd.
发明人： Kimihiko Furukawa , Masato Nishikawa , Kenji Motoyoshi , Noriharu Kobayashi , Yoshitaka Sakiyama
IPC分类号： B60L58/22 , G01R31/388 , B60L58/12 , H02J7/00 , H01M10/42 , H01M10/44 , H01M10/48
摘要： Provided is a management device that manages a power storage module configured by connecting in series a plurality of parallel cell groups in which a plurality of cells are connected in parallel. In the management device, a voltage detection circuit detects a voltage of each of the plurality of parallel cell groups connected in series. A plurality of equalizing circuits are connected in parallel to the plurality of parallel cell groups, respectively. A controlling circuit controls the plurality of equalizing circuits based on the voltage detected by the voltage detection circuit and executes an equalizing process. The controlling circuit determines whether or not an abnormal cell is included in each of the parallel cell groups based on a voltage change of each of the parallel cell groups during discharging to the equalizing circuit or charging from the equalizing circuit.

44. 发明申请

US20220153168A1 CELL CAPACITY BASED BATTERY PACK BALANCING 有权
公开(公告)号：US20220153168A1
公开(公告)日：2022-05-19
申请号：US16952671
申请日：2020-11-19
申请人： Ford Global Technologies, LLC
发明人： Rui Hu , Rui Wang , Xu Wang , Baojin Wang
IPC分类号： B60L58/22 , H01M10/44 , H01M10/42
摘要： A vehicle includes a traction battery and a controller. The controller, responsive to some cells of the traction battery achieving a first state of charge threshold, discharge other cells of the traction battery, each having a capacity greater than each of the some of the cells, to a second state of charge threshold that is greater than the first state of charge threshold without discharging the some of the cells. The controller then charges all of the cells at the same time such that the some of the cells and the other of the cells achieve a same predetermined target state of charge at a same time.

45. 发明申请

US20220126728A1 SYSTEM AND METHOD FOR VEHICLE BATTERY MANAGEMENT, STORAGE MEDIUM, AND SERVER SYSTEM 有权
公开(公告)号：US20220126728A1
公开(公告)日：2022-04-28
申请号：US17505133
申请日：2021-10-19
申请人： NIO TECHNOLOGY (ANHUI) CO., LTD
发明人： Xudong ZHANG , Peng ZHANG , Huaidong TANG
IPC分类号： B60L58/22 , H02J7/00 , B60L58/12 , H01M10/42
摘要： The present application relates to a system and method for vehicle battery management, a storage medium, and a server system. The system for vehicle battery management includes: a communications subsystem configured to receive battery signal data in a distributed message queue; a metadata management subsystem configured to store battery information; and a distributed processing subsystem configured to parse the battery signal data based on the battery information, to obtain parsed data and alarm data. In this way, centralized battery management can be implemented, thereby overcoming disadvantages in terms of alarms/warnings generated by the batteries themselves.

46. 发明申请

US20220126724A1 PORTABLE HIGH-VOLTAGE VEHICLE CHARGING SYSTEM 有权
公开(公告)号：US20220126724A1
公开(公告)日：2022-04-28
申请号：US17079936
申请日：2020-10-26
申请人： FORD GLOBAL TECHNOLOGIES, LLC
发明人： Michael John O'Connor , Timothy Harris
IPC分类号： B60L53/66 , B60L58/22 , B60L53/16 , B60L53/53 , B60L53/57
摘要： A high-voltage portable charging system for remote recharging of an electric vehicle includes a housing, an array of battery cells forming a high-voltage battery disposed in the housing, and a low-voltage battery disposed in the housing. A coupler assembly has a cord and a vehicle connector configured to connect to a vehicle charge port. A switching arrangement is powered by the low-voltage battery and is configured to electrically connect the high-voltage battery to the cord when in a first condition and to de-energize the cord when in a second condition.

47. 发明授权

US11305656B2 System and method for supplying electric energy to a mining vehicle and a mining vehicle 有权
公开(公告)号：US11305656B2
公开(公告)日：2022-04-19
申请号：US17057387
申请日：2019-05-16
申请人： SANDVIK MINING AND CONSTRUCTION OY
发明人： Mikko Kouvo , Raimo Juntunen
IPC分类号： B60L53/14 , B60L53/20 , B60L50/60 , B60L58/22 , H02J7/00
摘要： A system and method for supplying electric energy to a mining vehicle and a mining vehicle are provided. Electric energy is supplied to the mining vehicle using a system including a bipolar LVDC supply having a certain total voltage. The mining vehicle has at least a first energy unit and a second energy unit. The first energy unit is connected to a part of the certain total voltage and the second energy unit is connected to another part of the certain total voltage.

48. 发明申请

US20220111759A1 SUPPLYING POWER TO AN ELECTRIC VEHICLE 有权
公开(公告)号：US20220111759A1
公开(公告)日：2022-04-14
申请号：US17478358
申请日：2021-09-17
申请人： Our Next Energy, Inc.
发明人： Mujeeb Ijaz
IPC分类号： B60L58/22 , H02J7/00 , B60L58/12 , B60L58/16 , B60L53/20
摘要： A power supply system that utilizes a hybrid architecture to enable low cycle-life, high energy density chemistries to be used in rechargeable batteries to extend the range of a traction battery.

49. 发明授权

US11292360B2 Battery equalization method and system, vehicle, storage medium, and electronic device 有权
公开(公告)号：US11292360B2
公开(公告)日：2022-04-05
申请号：US16642811
申请日：2018-08-31
申请人： BYD COMPANY LIMITED
发明人： Hongbin Luo , Chao Wang , Xiaofeng Shen , Qiuyong Zeng , Yuanhong Liu , Xiang Zhang
IPC分类号： H02J7/00 , B60L58/22 , B60L58/12
摘要： A battery equalization method includes: obtaining a voltage value of a to-be-equalized cell in a battery pack; obtaining a reference voltage value required for equalization; determining a target equalization duration of the to-be-equalized cell according to a voltage value of the to-be-equalized cell, the reference voltage value, and a preset equalization duty cycle, where the equalization duty cycle is a ratio of an equalization period in a unit cycle to the unit cycle, and the unit cycle includes the equalization period and a sampling period; and controlling equalization of the to-be-equalized cell in the equalization period in the unit cycle according to the target equalization duration. According to this method, sampling is separated from equalization in a unit cycle, thereby ensuring accuracy of collected battery information, making the calculated equalization duration relatively accurate, and improving equalization effects of the battery pack.

50. 发明授权

US11225168B2 HV energy storage device 有权
公开(公告)号：US11225168B2
公开(公告)日：2022-01-18
申请号：US16353211
申请日：2019-03-14
申请人： AUDI AG
发明人： Sascha Staudenmaier
IPC分类号： B60L58/22 , H02J7/00 , H01M50/51 , H01M50/579 , H01M10/44 , B60L50/60 , H01H39/00 , H01M50/502
摘要： An HV energy storage device for a motor vehicle as well as a method for operating the HV energy storage device.

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