公开(公告)号：US20190140325A1

公开(公告)日：2019-05-09

申请号：US16235615

申请日：2018-12-28

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Lei WANG ,  Bogao XU ,  Wentao WANG ,  Dayang ZHENG

IPC: H01M10/48 ,  G01R31/382 ,  G01R19/165 ,  H01M10/44 ,  H01M10/42

Abstract: A battery management system includes a detection circuit configured to detect an electrical parameter of a metal battery and a control circuit configured to determine a safety performance of a battery cell of the metal battery according to the electrical parameter.

公开(公告)号：US20210091422A1

公开(公告)日：2021-03-25

申请号：US17115624

申请日：2020-12-08

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Dayang ZHENG ,  Lei WANG ,  Wentao WANG

IPC: H01M10/44 ,  H01M10/48 ,  H02J7/00

Abstract: A method for controlling a battery includes obtaining a present status parameter of the battery, and determining, according to the present status parameter, a discharge protection parameter. Status parameters within different ranges correspond to different discharge protection parameters. The discharge protection operation includes an under voltage protection. The method further includes determining, according to the discharge protection parameter and the present status parameter of the battery, whether to perform the discharge protection operation on the battery, and in response to determining to perform the discharge protection operation, performing the under voltage protection on the battery by disconnecting a discharge circuit for a load from the battery.

公开(公告)号：US20200335806A1

公开(公告)日：2020-10-22

申请号：US16916753

申请日：2020-06-30

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Dayang ZHENG ,  Lei WANG ,  Wentao WANG ,  Juncheng ZHAN ,  Bogao XU

IPC: H01M8/0656 ,  H01M8/04082 ,  H01M8/04746 ,  H01M8/0662 ,  H01M8/04119 ,  B64C39/02

Abstract: An energy delivery system includes: a solar cell configured to receive solar energy and generate electrical energy; an electrolysis module configured to generate a first fuel from water; a fuel cell configured to generate electricity by reacting the first fuel with a second fuel through an electrochemical reaction, wherein the electricity is used to power a movable platform; and a controller configured to generate instructions for the solar cell to provide the electrical energy to one or more of: (1) the electrolysis module to effect operation of the electrolysis module, and (2) the movable platform.

公开(公告)号：US20190250642A1

公开(公告)日：2019-08-15

申请号：US16395875

申请日：2019-04-26

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Hao LUO ,  Di OU ,  Chaobing CHEN ,  Dayang ZHENG ,  Wentao WANG

IPC: G05D1/10 ,  B64C13/50 ,  B64C27/58 ,  B64C27/72 ,  B64C39/02

CPC classification number: G05D1/101 ,  B63H25/26 ,  B64C13/50 ,  B64C27/02 ,  B64C27/08 ,  B64C27/12 ,  B64C27/58 ,  B64C27/72 ,  B64C39/024 ,  B64C2027/7205

Abstract: An unmanned aerial vehicle (UAV) includes a central part, a frame assembly, and a propulsion assembly mounted to the frame assembly. The UAV also includes a servo mounted to the central part. The servo includes a driving apparatus, a control apparatus operably coupled with the driving apparatus, and a sensor configured to obtain operating parameters of the driving apparatus. The operating parameters include operating positions of the driving apparatus. The control apparatus is configured to control the driving apparatus to rotate to a predetermined position and stay at the predetermined position based on the operating positions of the driving apparatus obtained by the sensor.

公开(公告)号：US20180145377A1

公开(公告)日：2018-05-24

申请号：US15858869

申请日：2017-12-29

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Dayang ZHENG ,  Juncheng ZHAN ,  Lei WANG ,  Wentao WANG ,  Baigao XU

IPC: H01M10/42 ,  G05D1/00 ,  B64C39/02 ,  G05D1/10 ,  H02J7/00

CPC classification number: H01M10/4264 ,  B64C39/024 ,  B64C2201/042 ,  B64C2201/14 ,  G05D1/0088 ,  G05D1/101 ,  H01M2/34 ,  H01M10/425 ,  H01M10/482 ,  H01M10/486 ,  H01M10/488 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2200/00 ,  H01M2220/20 ,  H02J7/0021 ,  H02J7/0031 ,  H02J7/34

Abstract: A battery includes a first cell unit, a first control circuit electrically connected with the first cell unit, a second cell unit connected with the first cell unit in parallel, and a second control circuit electrically connected with the second cell unit. The first control circuit is configured to disconnect an electrical connection between the first cell unit and a power output terminal of the first control circuit in response to a failure of the first cell unit. The second control circuit is configured to disconnect an electrical connection between the second cell unit and a power output terminal of the second control circuit in response to a failure of the second cell unit.

公开(公告)号：US20220029430A1

公开(公告)日：2022-01-27

申请号：US17493254

申请日：2021-10-04

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Wentao WANG ,  Dayang ZHENG ,  Lei WANG

IPC: H02J7/00 ,  B60L53/62 ,  B60L53/66 ,  B60L53/30

Abstract: A method for managing a battery of a mobile platform includes transmitting first initial battery data from a storage device of the battery to an onboard battery management system (BMS) of the mobile platform that is configured to monitor a first status of the battery and generate first updated battery data, receiving the first updated battery data in a sequential manner or in a parallel manner from the onboard BMS at the storage device, transmitting second initial battery data from the storage device to a charger BMS of a battery charger that is configured to monitor a second status of the battery and generate second updated battery data, and receiving the second updated battery data in a sequential manner or in a parallel manner from the charger BMS at the storage device.

公开(公告)号：US20210151999A1

公开(公告)日：2021-05-20

申请号：US17137308

申请日：2020-12-29

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Dayang ZHENG ,  Wentao WANG ,  Lei WANG ,  Hao LUO ,  Jie TIAN ,  Chaobin CHEN

IPC: H02J7/00

Abstract: A movable platform includes one or more propulsion units configured to provide a driving force to the movable platform and a control unit operatively coupled to the one or more propulsion units. The control unit is configured to: communicate with a plurality of batteries adapted to supply current to the one or more propulsion units; obtain one or more electrical characteristics of each of the plurality of batteries; and determine, based on the electrical characteristics, a controlling signal to set a power supply state for at least one of the plurality of batteries.

公开(公告)号：US20200076205A1

公开(公告)日：2020-03-05

申请号：US16677046

申请日：2019-11-07

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Hao LUO ,  Dayang ZHENG

IPC: H02J7/00 ,  B64C39/02 ,  H01M10/44 ,  H01M10/48

Abstract: A battery includes a battery cell and a battery management system including a first interface configured to charge and discharge the cell, a second interface configured to charge the cell, and a controller communicatively coupled to the first and second interfaces. One end of the first interface is configured to be coupled to an external power supply or a UAV, and another end of the first interface is coupled to the cell. One end of the second interface is configured to be coupled to the external power supply, and another end of the second interface is coupled to the cell. The controller is configured to, when the first and second interfaces are electrically coupled to the UAV and the external power supply, respectively, control a circuit between the first interface and the cell and a circuit between the second interface and the cell to be closed.

公开(公告)号：US20200064411A1

公开(公告)日：2020-02-27

申请号：US16665699

申请日：2019-10-28

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yangyang TANG ,  Mayue CHEN ,  Dayang ZHENG ,  Wentao WANG ,  Jie TIAN

IPC: G01R31/392 ,  G01R31/387 ,  G01R31/3842 ,  H02J7/00

Abstract: A battery includes a housing, an electrical energy storage unit mounted inside the housing, and a battery control system electrically coupled to the electrical energy storage unit to control charge and discharge of the electrical energy storage unit. The battery control system includes one or more processors configured to obtain one or more electrical parameters of the battery in a storage state, determine whether the battery is damaged or abnormal according to the one or more electrical parameters of the battery, and automatically discharge the battery to a safe state in response to determining that the battery is damaged or abnormal.

公开(公告)号：US20200176828A1

公开(公告)日：2020-06-04

申请号：US16783926

申请日：2020-02-06

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Dayang ZHENG ,  Juncheng ZHAN ,  Lei WANG ,  Wentao WANG ,  Baigao XU

IPC: H01M10/42 ,  H02J7/34 ,  H01M2/34 ,  H01M10/48 ,  H02J7/00 ,  B64C39/02 ,  G05D1/00 ,  G05D1/10

Abstract: A method is provided for managing an unmanned aerial vehicle (UAV). The UAV includes a first cell unit and a second cell unit connected in parallel. The method includes: detecting, by a first control circuit, whether a failure occurs in the first cell unit; detecting, by a second control circuit, whether a failure occurs in the second cell unit; establishing a communication between the first control circuit and the second control circuit; and in response to detecting a signal indicating that a failure occurs in the first cell or the second cell from the first control circuit or the second control circuit, reducing an output power of a propulsion device of the UAV.