公开(公告)号：US20240092202A1

公开(公告)日：2024-03-21

申请号：US18524903

申请日：2023-11-30

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG ,  Chao WANG ,  Weidong LIU

IPC: B60L53/22 ,  B60L53/14 ,  H02J7/00

CPC classification number: B60L53/22 ,  B60L53/14 ,  H02J7/0013 ,  H02J7/007182 ,  H02J2207/20

Abstract: A on-board charger includes a microprocessor and a storage battery connected with a DC charger. A first sampling point is disposed between the DC charger and a storage battery. A second sampling point is disposed between the storage battery and the microprocessor. The microprocessor is configured to: obtain a first voltage and a current of the first sampling point, and obtain a second voltage of the second sampling point; and determine the connection between the storage battery and the DC module is cut off and record a first difference between the second voltage and the first voltage, when the first voltage is greater than the second voltage and the current is less than a preset current threshold.

公开(公告)号：US20190020216A1

公开(公告)日：2019-01-17

申请号：US16062005

申请日：2016-12-16

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG

IPC: H02J7/04 ,  B60L11/18 ,  H02J7/02

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first total charging time for controlling the H bridge in a first manner and a second total charging time for controlling the H bridge in a second manner; obtaining a first predetermined charging time for controlling the H bridge in the first manner and a second predetermined charging time for controlling the H bridge in the second manner; selecting a manner according to a relation between the first total charging time and the second total charging time; and performing an alternate control on the H bridge in the first manner or the second manner according to the first predetermined charging time and the second predetermined charging time.

公开(公告)号：US20180361860A1

公开(公告)日：2018-12-20

申请号：US16062469

申请日：2016-12-16

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG

IPC: B60L11/18 ,  H02M7/219 ,  H02J7/02

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first total charging period for controlling the H bridge in a first manner and a second total charging period for controlling the H bridge in a second manner when the vehicle-mounted charger starts to charge the power battery; determining a relation between the first total charging period and the second total charging period; and selecting a manner for controlling the H bridge according to the relation between the first total charging period and the second total charging period to perform temperature balanced control over the first switch tube, the second switch tube, the third switch tube and the fourth switch tube.

公开(公告)号：US20230249564A1

公开(公告)日：2023-08-10

申请号：US18299021

申请日：2023-04-11

Applicant: BYD COMPANY LIMITED

Inventor： Weidong LIU ,  Chao WANG ,  Xinghui WANG

IPC: B60L53/20 ,  H02M3/335 ,  H02M1/42

CPC classification number: B60L53/20 ,  H02M3/33569 ,  H02M1/4208 ,  B60L2210/10 ,  B60L2210/30

Abstract: A charging device includes a PFC circuit, a first DC conversion module, a second DC conversion module, a switch module, and a control module. The PFC circuit includes at least three-phase bridge arm and is configured to perform PFC on an input AC and output a DC signal after the PFC. The first DC conversion module and the second DC conversion module are coupled to the PFC circuit to convert the AC signal. The switch module configured to turn on the three-phase bridge arm of the PFC circuit during three-phase charging or turn on one of the three-phase bridge arm of the PFC circuit during one-way charging. The control module is connected to the PFC circuit, the first and second DC conversion modules, and the switch module to control the charging device to perform single-phase charging or three-phase charging.

公开(公告)号：US20200083815A1

公开(公告)日：2020-03-12

申请号：US16465944

申请日：2017-12-01

Applicant: BYD COMPANY LIMITED

Inventor： Ni ZHANG ,  Xinghui WANG ,  Chao WANG ,  Xiaofeng SHEN ,  Baihe WU

IPC: H02M3/335 ,  H02J7/00 ,  H02M1/088 ,  H02M1/36 ,  B60L53/22

Abstract: A control method includes the following steps: when the DC-DC converter works every time, acquiring total time TC for controlling an H-bridge in a third mode and total time TD for controlling the H-bridge in a fourth mode, and acquiring set time Ti for controlling the H-bridge in the third mode and set time Tm for controlling the H-bridge in the fourth mode in each working cycle during a working process of the DC-DC converter; judging a relation between the TC and the TD; and selecting the mode for controlling the H-bridge when the DC-DC converter is started according to the relation between the total time TC and the total time TD, and alternately controlling the H-bridge according to the Ti and the Tm, the second switch tube, the third switch tube and the fourth switch tube in the H-bridge to be relatively balanced.

公开(公告)号：US20230226933A1

公开(公告)日：2023-07-20

申请号：US18121943

申请日：2023-03-15

Applicant: BYD COMPANY LIMITED

Inventor： Weidong LIU ,  Chao WANG ,  Xinghui WANG

IPC: B60L53/18 ,  B60L58/18

CPC classification number: B60L53/18 ,  B60L58/18 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2210/10

Abstract: A method for charging control of a hybrid electric vehicle, includes: receiving a charging instruction; acquiring a first voltage of a power battery and a second voltage of a storage battery in response to receiving the charging instruction; in response to determining that the first voltage is less than the first voltage threshold and the second voltage is less than the second voltage threshold, disconnecting the OBC from the power battery and charging the storage battery through the OBC and the DC for a charging duration; and in response to that the charging duration of the storage battery reaches a duration threshold, connecting the OBC to the power battery and charging the power battery through the OBC.

公开(公告)号：US20200186051A1

公开(公告)日：2020-06-11

申请号：US16319994

申请日：2017-07-17

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG

IPC: H02M7/219 ,  B60L53/14 ,  H02J7/06

Abstract: The present disclosure discloses an electric vehicle, a car charger for an electric vehicle and a control method thereof. The car charger includes: a charging contactor, a first end of which is configured for coupling to a first end of an alternating-current power source; an H bridge, including first and second alternating-current ends and first and second direct-current ends, where the first and second direct-current ends are configured for coupling to a power battery, the first alternating-current end is configured for coupling to a second end of the charging contactor, and the second alternating-current end is configured for coupling to a second end of the alternating-current power source; a first voltage sampling module, configured to sample a voltage of the first end of the charging contactor to obtain a first sampling voltage; a second voltage sampling module, configured to sample a voltage of the second end of the charging contactor to obtain a second sampling voltage; and a control module, configured to control the H bridge to perform an inversion operation when the alternating-current power source is coupled to the car charger such that the second sampling voltage has a synchronous phase and the same amplitude as the first sampling voltage, then control the charging contactor to pull in, and control the H bridge to perform a rectifying operation such that the alternating-current power source charges the power battery.

公开(公告)号：US20180375439A1

公开(公告)日：2018-12-27

申请号：US16063154

申请日：2016-12-16

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG

IPC: H02M7/219 ,  H02J7/02 ,  B60L11/18

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first charging predetermined period Tx for controlling the H bridge in a first manner and a second charging predetermined period Ty for controlling the H bridge in a second manner when the vehicle-mounted charger starts to charge a power battery of the electric vehicle; and performing an alternate control on the H bridge in the first manner or the second manner according to the first charging predetermined period Tx and the second charging predetermined period Ty, so as to perform a temperature balanced control over the first switch tube, the second switch tube, the third switch tube and the fourth switch tube.

公开(公告)号：US20180319285A1

公开(公告)日：2018-11-08

申请号：US15776131

申请日：2016-12-16

Applicant: BYD COMPANY LIMITED

Inventor： Xinghui WANG

IPC: B60L11/18 ,  H02J7/00

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first total discharging period for controlling the H bridge in a first manner and a second total charging period for controlling the H bridge in a second manner when a power battery discharges via the vehicle-mounted charger; determining a relation between the first total discharging period and the second total discharging period; selecting a manner for controlling the H bridge according to a relation between the first total discharging period and the second total discharging period to perform temperature balanced control over the first switch transistor, the second switch transistor, the third switch transistor and the fourth switch transistor.

公开(公告)号：US20140292261A1

公开(公告)日：2014-10-02

申请号：US14308677

申请日：2014-06-18

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： Xinghui WANG ,  Jianhua ZHANG ,  Xiaofeng SHEN ,  Kaihua NIU ,  Xiao CHEN ,  Jianwei HUANG ,  Chaojie ZONG ,  Lin LIU

IPC: H02J7/00

CPC classification number: H02J7/0052 ,  B60L3/0023 ,  B60L3/0046 ,  B60L3/0069 ,  B60L3/12 ,  B60L11/1816 ,  B60L11/1846 ,  B60L11/1848 ,  B60L2230/00 ,  B60L2230/16 ,  B60L2240/80 ,  H02J7/0027 ,  H02J7/0036 ,  H02J7/027 ,  H02J7/04 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7088 ,  Y02T90/121 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S30/14

Abstract: A charging device, a method for controlling a charging device, and a method for detecting a peripheral device are provided. The charging device comprises: a charging gun; a power module; and a controlling module coupled with the charging gun and the power module, wherein the controlling module is configured to determine whether the charging gun is connected with a peripheral device to be charged, and if yes, to control the power module to convert AC electricity to DC electricity to charge the peripheral device. A method for controlling a charging device is also provided. The method comprises: determining whether the charging gun is connected with a peripheral device; and if yes, controlling the power module to convert AC electricity to DC electricity to charge the peripheral device if the charging gun is determined to be connected to the peripheral device.

Abstract translation: 提供充电装置，充电装置的控制方法以及周边装置的检测方法。 充电装置包括：充电枪; 电源模块; 以及与充电枪和电源模块耦合的控制模块，其中控制模块被配置为确定充电枪是否与要充电的外围设备连接，如果是，则控制电源模块将AC电转换为 直流电为外围设备充电。 还提供了一种用于控制充电装置的方法。 该方法包括：确定充电枪是否与外围设备连接; 如果是，则控制电源模块将AC电转换为DC电，以便在确定充电枪连接到外围设备时对外围设备充电。