公开(公告)号：US20230356626A1

公开(公告)日：2023-11-09

申请号：US18338936

申请日：2023-06-21

Applicant: BYD COMPANY LIMITED

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

IPC: B60L58/22 ,  H02J7/00

CPC classification number: B60L58/22 ,  H02J7/0019 ,  H02J7/0047 ,  H02J7/0014

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, connected to the collection circuit and the equalization circuit; and a power supply branch circuit, controlled by the controller to get connected to a power supply unit and the battery equalization system when a vehicle is in an OFF gear and a cell needs enabling of equalization, so that the power supply unit supplies power to the battery equalization system.

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.

公开(公告)号：US20200346552A1

公开(公告)日：2020-11-05

申请号：US16642816

申请日：2018-08-31

Applicant: BYD COMPANY LIMITED

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

IPC: B60L53/62 ,  H02J7/00 ,  B60L58/13

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.

公开(公告)号：US20180312146A1

公开(公告)日：2018-11-01

申请号：US15770714

申请日：2016-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Yubo LIAN ,  Hongbin LUO ,  Jintao ZHANG ,  Dongsheng YANG

IPC: B60T8/171

CPC classification number: B60T8/17616 ,  B60T1/10 ,  B60T8/1766 ,  B60T8/885 ,  B60T2220/04 ,  B60T2270/402 ,  B60T2270/604

Abstract: An active safety control system and method for a vehicle include: a plurality of motors arranged on a plurality of wheels; a plurality of brakes arranged on the plurality of wheels; a hydraulic braking device; a pedal detection device, used for detecting pedal signals of the vehicle; a motor state detection device, used for detecting the states of the plurality of motors; a plurality of wheel speed detection devices, arranged on the plurality of wheels, used for detecting speeds of the wheels and generating wheel speed detection signals; a power battery, connected with the plurality of motors respectively; and a control device, used for obtaining braking torques according to the pedal signals and the wheel speed detection signals, determining a corresponding braking mode according to the states of motors, and controlling the brakes, the motors and the hydraulic braking device according to the braking mode and the braking torques.

公开(公告)号：US20160339907A1

公开(公告)日：2016-11-24

申请号：US15230992

申请日：2016-08-08

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Yubo LIAN ,  Jintao ZHANG ,  Hongbin LUO

IPC: B60W20/30 ,  B60W10/06 ,  F16H3/00 ,  B60W10/113 ,  B60W10/11 ,  B60W30/19 ,  B60W10/02 ,  B60W10/08

CPC classification number: B60W20/30 ,  B60K6/547 ,  B60K2006/4808 ,  B60W10/06 ,  B60W10/08 ,  B60W10/113 ,  B60W20/20 ,  B60W20/40 ,  B60W30/19 ,  B60W2050/0011 ,  B60W2510/081 ,  B60W2510/1005 ,  B60W2520/10 ,  B60W2520/105 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2540/16 ,  B60W2710/081 ,  B60W2710/083 ,  B60W2710/1005 ,  B60W2720/10 ,  B60W2720/106 ,  F16H3/006 ,  Y02T10/626 ,  Y02T10/6286 ,  Y10S903/902

Abstract: The present disclosure discloses a shifting control method for a hybrid vehicle. The shifting control method includes: detecting operating parameters of the hybrid vehicle, where the operating parameters of the hybrid vehicle includes vehicle speed, vehicle acceleration as reflected from an accelerator-pedal signal and a current gear of the hybrid vehicle; determining a work mode of the hybrid vehicle; performing speed adjustment and shifting control to the first motor-generator according to a work mode and the operating parameters of the hybrid vehicle to implement shifting control of the hybrid vehicle, where the work mode includes an electric-vehicle mode and a hybrid-electric-vehicle mode. The method considers performing speed adjustment and shifting control under various working conditions. This improves smoothness and comfort of the vehicle and enlarges the use scope. The present disclosure further discloses a power transmission system of a hybrid vehicle and a hybrid vehicle.

Abstract translation: 本公开公开了一种混合动力车辆的变速控制方法。 变速控制方法包括：检测混合动力车辆的操作参数，其中混合动力车辆的操作参数包括车速，从加速器踏板信号反映的车辆加速度和混合动力车辆的当前档位; 确定混合动力车辆的工作模式; 根据工作模式和混合动力车辆的操作参数对第一电动发电机进行速度调节和变速控制，实现混合动力车辆的变速控制，其中工作模式包括电动车辆模式和混合动力车辆模式， 车辆模式。 该方法考虑在各种工作条件下执行速度调节和变速控制。 这提高了车辆的平滑度和舒适性，并且扩大了使用范围。 本公开还公开了一种混合动力车辆和混合动力车辆的动力传递系统。

公开(公告)号：US20160069426A1

公开(公告)日：2016-03-10

申请号：US14644881

申请日：2015-03-11

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Yubo LIAN ,  Jintao ZHANG ,  Hongbin LUO

IPC: F16H3/00 ,  F16H3/085 ,  B60K6/442 ,  F16H3/12

CPC classification number: F16H3/006 ,  B60K6/442 ,  B60K6/52 ,  B60K6/547 ,  B60K7/0007 ,  B60K17/165 ,  B60K17/356 ,  B60K2007/0046 ,  B60K2007/0061 ,  F16H3/093 ,  F16H2003/0807 ,  F16H2003/0822 ,  F16H2003/0931 ,  F16H2200/0056 ,  Y02T10/6234 ,  Y02T10/6265 ,  Y10S903/917

Abstract: A power transmission system for a vehicle is provided. The system comprises an engine, a plurality of input shafts, at least one of the input shafts being configured to selectively engage with the engine, each of the input shafts being provided with a shift driving gear thereon, a plurality of output shafts, each of the output shafts being provided with a shift driven gear configured to mesh with a corresponding shift driving gear, a motor power shaft configured to rotate together with one of the input shafts, and a first motor generator configured to rotate together with the motor power shaft. When the motor power shaft rotates together with the one of the input shafts, the first motor generator uses at least a part of power output by the engine to generate electric power when the vehicle is parking or running. A vehicle including the power transmission system is also provided.

Abstract translation: 提供一种用于车辆的动力传动系统。 该系统包括发动机，多个输入轴，至少一个输入轴构造成选择性地与发动机接合，每个输入轴在其上设置有变速驱动齿轮，多个输出轴，每个输出轴 输出轴设置有与相应的换档驱动齿轮啮合的换档从动齿轮，配置为与输入轴中的一个一起旋转的马达动力轴以及被配置为与马达动力轴一起旋转的第一马达发电机。 当电动机动力轴与输入轴一起旋转时，当车辆停车或行驶时，第一电动发电机使用发动机输出的功率的至少一部分来产生电力。 还提供了包括电力传输系统的车辆。

公开(公告)号：US20150211615A1

公开(公告)日：2015-07-30

申请号：US14527446

申请日：2014-10-29

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Yubo LIAN ,  Jintao ZHANG ,  Hongbin LUO

IPC: F16H37/08 ,  B60K6/442 ,  B60K7/00 ,  B60K17/356

CPC classification number: F16H37/0806 ,  B60K6/387 ,  B60K6/442 ,  B60K6/52 ,  B60K7/0007 ,  B60K17/356 ,  Y02T10/6234 ,  Y02T10/6265 ,  Y10S903/917 ,  Y10T74/19014

Abstract: A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes an engine unit configured to generate power, a transmission unit adapted to selectively coupled with the engine unit, and configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit configured to transmit the power output by the transmission unit to at least one of front and rear wheels of the vehicle, a power switching device adapted to enable or interrupt a power transmitting between the transmission unit and the output unit, and a second motor generator configured to drive the at least one of the front and rear wheels.

Abstract translation: 提供了一种用于车辆和包括该动力传动系统的车辆的动力传递系统。 电力传输系统包括被配置为产生电力的发动机单元，适于选择性地与发动机单元耦合的发送单元，并且被配置为发送由发动机单元生成的电力，与发送单元耦合的第一电动发电机，输出单元 被配置为将由所述传动单元输出的功率传输到所述车辆的前轮和后轮中的至少一个;适于使能或中断所述传动单元和所述输出单元之间的动力传递的功率切换装置，以及被配置为 以驱动前轮和后轮中的至少一个。