公开(公告)号：WO2011076103A1

公开(公告)日：2011-06-30

申请号：PCT/CN2010/080050

申请日：2010-12-21

Applicant: BYD COMPANY LIMITED ,  LIU, Yu ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

Inventor： LIU, Yu ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

IPC: G01R29/02

CPC classification number: G01R29/0273 ,  G01R29/02

Abstract: A method for detecting PWM wave comprises: starting counting when a PWM wave is detected; interrupting the counting when a value of the counting reaches a predetermined value; determining whether electric level of the PWM wave during the interruption is high electric level or low electric level; clearing the value of the counting, starting a next counting and interrupting the next counting when a value of the next counting reaches the predetermined value; determining whether the electric level of the PWM wave during the interruption of the next counting is high electric level or low electric level; clearing the value of the counting and repeating the counting and the determining until one period of the PWM wave; and calculating a duty ratio of the PWM wave based on a number of high electric level and a number of low electric level determined within one period of the PWM wave.

Abstract translation: 一种用于检测PWM波的方法包括：当检测到PWM波时开始计数; 当计数值达到预定值时中断计数; 确定中断期间PWM波的电平是高电平还是低电平; 清除计数值，开始下一个计数，并且当下次计数的值达到预定值时中断下一个计数; 确定下次计数中断期间的PWM波的电平是高电平还是低电平; 清除计数值，重复计数和确定直到PWM波的一个周期; 以及基于在PWM波的一个周期内确定的高电平和低电平的数量来计算PWM波的占空比。

公开(公告)号：WO2011120435A1

公开(公告)日：2011-10-06

申请号：PCT/CN2011/072319

申请日：2011-03-30

Applicant: BYD COMPANY LIMITED ,  LI, Bo ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

Inventor： LI, Bo ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

IPC: H02J7/34

CPC classification number: H02J3/32 ,  H02J7/0055 ,  H02J7/35

Abstract: A home energy control system and a controlling method thereof are provided. The system comprises: an energy storage unit (101) configured to store energy, a grid-connected inverter (102) connected with the energy storage unit (101) and configured to transmit power from the energy storage unit (101) to a power grid (120) and/or transmit power from the power grid (120) to the energy storage unit (101), an off-grid inverter (104) configured to transmit power from the energy storage unit (101) to household devices (130), a new energy generating unit (103) configured to generate power domestically to charge the energy storage unit (101) and a controller (105) connected with the energy storage unit (101), the grid-connected inverter (102), the new energy generating unit (103) and the off-grid inverter (104) respectively and configured to control the energy storage unit (101), the grid-connected inverter (102), the off-grid inverter (104) and the new energy generating unit (103) to run in a gird-connected mode, an off-grid inverter mode and/or a new energy generating mode. The method comprises the step of controlling the system to run in at least one of the following modes after mode conflict check: the new energy generating mode, the grid-connected inverter mode and the off-grid inverter mode.

Abstract translation: 提供家庭能量控制系统及其控制方法。 该系统包括：被配置为存储能量的能量存储单元（101），与能量存储单元（101）连接的并网逆变器（102），并被配置为将功率从能量存储单元（101）传输到电网 （120）和/或从所述电网（120）向所述能量存储单元（101）发送功率的离网逆变器（104），被配置为将功率从所述能量存储单元（101）传送到家用设备（130） ，配置成在国内发电以对能量存储单元（101）充电的新能量产生单元（103）和与能量存储单元（101）连接的控制器（105），并网逆变器（102），新的 能量产生单元（103）和离网逆变器（104），并且被配置为控制能量存储单元（101），并网逆变器（102），离网逆变器（104）和新能量产生 单元（103）以网格连接模式运行，离网逆变器模式和/或新能量产生 模式。 该方法包括以下步骤：在模式冲突检查之后控制系统运行在以下模式中的至少一种：新能量发生模式，并网逆变器模式和离网逆变器模式。

公开(公告)号：WO2012041159A1

公开(公告)日：2012-04-05

申请号：PCT/CN2011/079488

申请日：2011-09-08

Applicant: BYD COMPANY LIMITED ,  WU, Zhenjie ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

Inventor： WU, Zhenjie ,  SHEN, Xiaofeng ,  ZHANG, Jianhua

IPC: H02J7/35 ,  B60L11/18

CPC classification number: B60L11/1809 ,  B60L8/003 ,  H02J7/04 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7083 ,  Y02T10/7094 ,  Y02T90/14

Abstract: An in-vehicle solar energy charging system and a method for controlling the same are disclosed. The in-vehicle solar energy charging system comprises a solar energy cell panel (110), a solar energy charger (120), a starting battery (130), a power battery (140) and a controller (150), in which the solar energy cell panel (110) is electrically connected to the solar energy charger (120), the starting battery (130) and the power battery (140) are electrically connected to the solar energy charger (120) respectively, the solar energy charger (120), the starting battery (130) and the power battery (140) are electrically connected to the controller (150) respectively, and the controller (150) is configured for performing a maximum photovoltaic power tracking algorithm so as to control the output power of the solar energy charger (120). The system may realize flexible control and maximize the output power of the solar energy.

Abstract translation: 公开了车载太阳能充电系统及其控制方法。 车载太阳能充电系统包括太阳能电池板（110），太阳能充电器（120），起动电池（130），动力电池（140）和控制器（150），其中太阳能 能量单元面板（110）电连接到太阳能充电器（120），起动电池（130）和动力电池（140）分别电连接到太阳能充电器（120），太阳能充电器（120） ），起动电池（130）和动力电池（140）分别电连接到控制器（150），并且控制器（150）被配置为执行最大光伏功率跟踪算法，以便控制输出功率 太阳能充电器（120）。 该系统可实现灵活的控制，并使太阳能的输出功率最大化。

公开(公告)号：WO2011050670A1

公开(公告)日：2011-05-05

申请号：PCT/CN2010/077603

申请日：2010-10-08

Applicant: BYD COMPANY LIMITED ,  SHEN, Xiaofeng ,  PENG, Junna

Inventor： SHEN, Xiaofeng ,  PENG, Junna

IPC: G01R31/36 ,  G01R27/14

CPC classification number: G01R31/3662 ,  G01R19/16542 ,  H01M2/1055 ,  H01M10/48 ,  H02J7/0031 ,  H02J7/0045

Abstract: A device and method for testing the internal resistance of a battery pack is provided. The testing device comprises a battery pack; an adjustable resistance connected with the battery pack to form a loop circuit; an excitation source coupled to the loop circuit to apply excitations thereto; a sampling unit used to collect a first excitation voltage between the two terminals of the battery pack, a second excitation voltage between the two terminals of the adjustable resistance and the resistance value of the adjustable resistance; a control unit coupled to the sampling unit and used to calculate the internal resistance of the battery pack based on the first excitation voltage, the second excitation voltage and the resistance value collected at a time when the first excitation voltage is substantially equal to the range voltage of the sampling unit. The testing device has high measurement accuracy and may calculate the internal resistance in a wide voltage range.

Abstract translation: 提供一种用于测试电池组的内阻的装置和方法。 测试装置包括电池组; 与电池组连接的可调电阻以形成回路电路; 耦合到所述环路电路以对其施加激励的激励源; 采样单元，用于收集电池组的两个端子之间的第一激励电压，可调电阻的两个端子之间的第二激励电压和可调电阻的电阻值; 控制单元，其耦合到采样单元，用于基于第一激励电压，第二激励电压和在第一激励电压基本上等于范围电压时收集的电阻值来计算电池组的内部电阻 的采样单元。 测试装置测量精度高，可以在宽电压范围内计算内部电阻。

公开(公告)号：EP4390673A1

公开(公告)日：2024-06-26

申请号：EP22903135.6

申请日：2022-11-11

Applicant: BYD Company Limited

Inventor： SHEN, Xiaofeng ,  NIE, Ji ,  CHEN, Lvfen

IPC: G06F8/654

CPC classification number: Y02T10/40 ,  G06F8/654 ,  G06F8/71

Abstract: An ECU upgrade method is provided, including: obtaining a set first encapsulation file, where the first encapsulation file encapsulates first vehicle model information and first upgrade content related information corresponding to the first vehicle model information; obtaining the first vehicle model information and the first upgrade content related information based on the first encapsulation file; obtaining first upgrade process related information corresponding to the first vehicle model information from a set memory based on the first vehicle model information; and performing ECU upgrade processing on a vehicle having the first vehicle model information based on the first upgrade process related information and the first upgrade content related information.

公开(公告)号：EP3550709A1

公开(公告)日：2019-10-09

申请号：EP17875909.8

申请日：2017-12-01

Applicant: BYD Company Limited

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

IPC: H02M3/335

Abstract: This application discloses an electric vehicle, a DC-DC converter thereof and a control method of the DC-DC converter. The 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, so as to perform temperature equalization control on a first switch tube, a second switch tube, a third switch tube and a fourth switch tube, thereby enabling heat generation of the first switch tube, the second switch tube, the third switch tube and the fourth switch tube in the H-bridge to be relatively balanced, so as to prolong the working life of the switch tubes in the H-bridge.

公开(公告)号：EP3678276A1

公开(公告)日：2020-07-08

申请号：EP18851100.0

申请日：2018-08-31

Applicant: BYD Company Limited

Inventor： LUO, Hongbin ,  WANG, Chao ,  SHEN, Xiaofeng ,  WANG, Chengzhi ,  ZENG, Qiuyong

IPC: H02J7/00 ,  B60L50/50 ,  H01M10/42

Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller; a charging branch circuit, connected to a charging device and a battery pack; and a first power supply branch circuit, connected to the charging device and the battery equalization system, and configured to supply power to the battery equalization system. When a state-of-charge of the battery pack is full and a cell in the battery pack needs enabling of equalization, the controller controls the charging branch circuit to disconnect, and controls the first power supply branch circuit to keep connected, so that an equalization module performs equalization processing on the cell that needs enabling of equalization. By improving the electrical connection structure of the battery equalization system, the present application extends the battery equalization time, improves the battery equalization effect, and resolves the technical problem of low equalization efficiency of the battery equalization system in the related art.

公开(公告)号：EP2865138B1

公开(公告)日：2018-11-28

申请号：EP13806802.8

申请日：2013-06-21

Applicant: BYD Company Limited

Inventor： XIA, Huan ,  GONG, Junlin ,  TANG, Xiaohua ,  SHEN, Xiaofeng ,  WANG, Xinghui ,  WANG, Chao

IPC: H04L12/40 ,  H04L12/24 ,  H04L12/26

CPC classification number: G06F13/28 ,  G06F13/4027 ,  G06F13/4282 ,  H04L12/40169 ,  H04L41/082 ,  H04L43/0817 ,  H04L2012/40215 ,  H04L2012/40273

Abstract: A method, an upper computer and a system for programming nodes in a bus network are provided. The method comprises: analyzing a program file to be programmed to obtain data of the program file and a storage address corresponding to the data; broadcasting a routing request message and receiving responding messages returned from a plurality of lower computers, each lower computer corresponding to one node in the bus network; analyzing the responding messages to obtain an operating state of each node among the plurality of layers of nodes; receiving a selected node to be programmed, activating the selected node and transmitting the data and the storage address to a single chip microcomputer corresponding to the selected node when the operating state of each node is a forwarding state; and storing corresponding to the selected node the data in a memory of the single chip microcomputer according to the storage address.

公开(公告)号：EP2865138A1

公开(公告)日：2015-04-29

申请号：EP13806802.8

申请日：2013-06-21

Applicant: BYD Company Limited

Inventor： XIA, Huan ,  GONG, Junlin ,  TANG, Xiaohua ,  SHEN, Xiaofeng ,  WANG, Xinghui ,  WANG, Chao

IPC: H04L12/40

CPC classification number: G06F13/28 ,  G06F13/4027 ,  G06F13/4282 ,  H04L12/40169 ,  H04L41/082 ,  H04L43/0817 ,  H04L2012/40215 ,  H04L2012/40273

Abstract: A method, an upper computer and a system for programming in a bus network are provided. The method comprises: analyzing a program document to be programmed to obtain data of the program document and a storage address corresponding to the data; broadcasting a routing request message and receiving responding messages returned from a plurality of lower computers, each lower computer corresponding to one node in the bus network; analyzing the responding messages to obtain a working state of each node among the plurality of layers of nodes; receiving a selected node to be programmed, activating the selected node and transmitting the data and the storage address to a single chip machine corresponding to the selected node when the working state of each node is a forwarding state; and storing corresponding to the selected node the data in a memory of the single chip machine according to the storage address.

公开(公告)号：EP4546122A1

公开(公告)日：2025-04-30

申请号：EP23825900.6

申请日：2023-04-12

Applicant: BYD Company Limited

Inventor： SHEN, Xiaofeng ,  HUA, Chongru ,  YUE, Xiang

IPC: G06F9/44 ,  G06F11/36

Abstract: An embedded software model architecture (100), a battery management system controller (300), and a vehicle (400). The embedded software model architecture (100) comprises: a project determination unit (101), at least one project unit (102), and a model-level output signal summary unit (103). The project determination unit (101) is used for outputting, according to a target unit needing to be processed by the embedded software model architecture (100), a project enable signal corresponding to the target unit, wherein the target unit is one of the at least one project unit (102), the project enable signal is used for triggering the startup of the target unit, so as to realize a corresponding logic control strategy, and the target unit is used for receiving the project enable signal and outputting a unit-level output summary signal according to the project enable signal. The model-level output signal summary unit (103) is used for receiving the unit-level output summary signal, and outputting a model-level output summary signal.