公开(公告)号：US20240246449A1

公开(公告)日：2024-07-25

申请号：US18623023

申请日：2024-03-31

Applicant: BYD COMPANY LIMITED

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

IPC: B60L58/12 ,  B60L3/00 ,  B60L53/62

CPC classification number: B60L58/12 ,  B60L3/00 ,  B60L53/62 ,  B60L2260/52

Abstract: A charging control method for a vehicle having an electric function 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：US20200346558A1

公开(公告)日：2020-11-05

申请号：US16642811

申请日：2018-08-31

Applicant: BYD COMPANY LIMITED

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

IPC: B60L58/22 ,  H02J7/00 ,  B60L58/12

Abstract: 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.