公开(公告)号：EP4393751A1

公开(公告)日：2024-07-03

申请号：EP22897493.7

申请日：2022-10-24

Applicant: BYD Company Limited

Inventor： ZENG, Qiuyong ,  SHEN, Xiaofeng ,  DENG, Linwang ,  LIU, Yuanhong ,  YOU, Honggang ,  CAO, Xunwen

IPC: B60L3/00 ,  B60L58/10 ,  B60L53/00

CPC classification number: Y02T10/70 ,  B60L58/10 ,  B60L3/00 ,  B60L58/12 ,  B60L53/00 ,  B60L53/62

Abstract: A charging control method for a vehicle having an electric function is provided, and includes: Vehicle usage habit data of a user in preset time is read. The usage habit data includes a charging time point of each charging and driving mileage of each driving of the vehicle in the preset time. A current remaining state of charge of the vehicle at a current moment is detected. An estimated need state of charge of the vehicle is determined based on the usage habit data. Whether the vehicle needs charging is determined based on the estimated need state of charge and the current remaining state of charge. The present disclosure further provides a charging control apparatus, a vehicle, and a computer-readable storage medium.

公开(公告)号：EP2494372A1

公开(公告)日：2012-09-05

申请号：EP10826033.2

申请日：2010-10-08

Applicant: BYD Company Limited

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.

公开(公告)号：EP4546115A1

公开(公告)日：2025-04-30

申请号：EP23825787.7

申请日：2023-02-16

Applicant: BYD Company Limited

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

IPC: G06F8/20

Abstract: Provided in the present disclosure are a software model architecture, a battery management system controller and a vehicle. The model architecture comprises a first function calling unit, a logic unit and a second function calling unit, which are connected in sequence, wherein the first function calling unit is used for reading a function value of an external function and outputting the function value to the logic unit; the logic unit is used for executing preset computation logic according to the function value and outputting a first computation result to the second function calling unit; and the second function calling unit is used for writing the first computation result into the external function. When the model architecture is in an offline debugging state, the logic unit is in a separated state in which the logic unit is respectively independent of the first function calling unit and the second function calling unit.

公开(公告)号：EP4395245A1

公开(公告)日：2024-07-03

申请号：EP22913680.9

申请日：2022-10-18

Applicant: BYD Company Limited

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

IPC: H04L12/40

CPC classification number: H04L67/12 ,  G07C5/00 ,  H04L12/40 ,  H04L67/303 ,  G07C5/08

Abstract: An electric vehicle monitoring method and apparatus and a readable storage medium are provided. The method includes the following steps. A first configuration file corresponding to a first electric vehicle is obtained. The first configuration file includes first function information, first CAN communication protocol information, and first style information that correspond to the first electric vehicle. The first function information, the first CAN communication protocol information, and the first style information are obtained according to the first configuration file. Configuration information that is of a target function and that is corresponding to the first function information is obtained. Display content of the target function in a set display interface is configured according to the first style information and the configuration information of the target function. Monitoring processing is performed on the first electric vehicle according to the display content and the first CAN communication protocol information.

公开(公告)号：EP3677465A1

公开(公告)日：2020-07-08

申请号：EP18850012.8

申请日：2018-08-31

Applicant: BYD Company Limited

Inventor： LUO, Hongbin ,  WANG, Chao ,  SHEN, Xiaofeng ,  ZENG, Qiuyong ,  LIU, Yuanhong ,  ZHANG, Xiang

IPC: B60L50/50

Abstract: The present application relates to a battery equalization method and system, a vehicle, a storage medium, and an electronic device. The 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.

公开(公告)号：EP2494372B1

公开(公告)日：2013-12-04

申请号：EP10826033.2

申请日：2010-10-08

Applicant: BYD Company Limited

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: An internal resistance testing device includes an excitation source and a battery pack, an adjustable resistance R, a sampling unit, and a control unit. The excitation source and the battery pack form a loop circuit. The adjustable resistance R may be located at the loop circuit formed by the excitation source and the battery pack. The sampling unit samples the voltage between two sides of the battery pack, the voltage between two sides of the adjustable resistance R, and the value of the adjustable resistance R. The control unit calculates internal resistance of the battery pack according to the signal value collected by the sampling unit. The internal resistances of different voltage-ranges the battery pack are determined by adjusting the value of the adjustable resistance R to cause the actual excitation voltage to be equal to the range voltage of the sampling unit. The voltage between two sides of the adjustable resistance R is made equal to the range voltage of the sampling unit by adjusting the value of the adjustable resistance R, which effectively improves measurement accuracy of the internal resistance.

Abstract translation: 内阻测试装置包括激励源和电池组，可调电阻R，采样单元和控制单元。 激励源和电池组形成一个环路。 可调电阻R可以位于由激励源和电池组形成的环路处。 采样单元对电池组两侧电压，可调电阻R两端电压以及可调电阻R的值进行采样。控制单元根据采集到的信号值计算电池组的内阻 由抽样单位。 通过调节可调电阻R的值来确定电池组的不同电压范围的内部电阻，以使实际激励电压等于采样单元的范围电压。 通过调整可调电阻R的值，使得可调电阻R两侧电压与采样单元的电压范围相等，有效提高了内阻的测量精度。