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公开(公告)号：US20250042307A1
公开(公告)日：2025-02-06
申请号：US18920519
申请日：2024-10-18
Applicant: BYD COMPANY LIMITED
Inventor： Heping LING , Lei YAN , Wen GAO , Jinyue XIE , Ke ZHU
IPC: B60L58/27 , B60L15/00 , B60L58/18 , H01M10/44 , H01M10/615 , H01M10/625 , H01M10/637 , H01M10/657 , H02P27/06
Abstract: A battery self-heating control method includes: in a first period of each of control periods, configuring a conduction state of an upper bridge arm assembly and a conduction state of a lower bridge arm assembly to be a self-heating state, and in the self-heating state, alternately charging and discharging a first battery pack and/or a second battery pack to heat the battery pack by a current on a second connecting wire between a motor and the battery pack.
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公开(公告)号：US20240367726A1
公开(公告)日：2024-11-07
申请号：US18775650
申请日：2024-07-17
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Bengang YI , Heping LING , Junfei YAN , Tengyong LIU
Abstract: A vehicle includes: an underbody, a front subframe, and a battery pack. The front subframe is connected to the underbody. The battery pack is connected to the underbody, and is disposed on a lower side of the underbody. A rear end surface of the front subframe includes a limiting surface for the battery pack to extend forward, and at least a part of an upper surface of the battery pack forms a portion of a floor of a vehicle body.
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3.发明公开公开(公告)号：US20240227610A1
公开(公告)日：2024-07-11
申请号：US18612004
申请日：2024-03-21
Applicant: BYD COMPANY LIMITED
Inventor： Heping LING , Zhen ZHAI , Junhua LIU , Wei LIANG , Yulin SUN
Abstract: A method of over-heating protection for a charging apparatus, includes: measuring a charging parameter of the charging apparatus during a charging process, where the charging parameter includes a temperature and a time corresponding to the temperature; estimating a temperature change trend of the charging apparatus based on the charging parameter; and when determining, based on the temperature change trend, that a highest estimated temperature exceeds an upper limit of a preset temperature range, limiting a charging current for the charging apparatus before an estimated temperature exceeds the upper limit of the preset temperature range.
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4.发明公开公开(公告)号：US20240223118A1
公开(公告)日：2024-07-04
申请号：US18606204
申请日：2024-03-15
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Hua PAN , Feiyue XIE , Lijun ZHANG
CPC classification number: H02P27/085 , H02J7/0063 , H02P29/62 , H02J2207/20
Abstract: A motor drive apparatus includes a three-phase inverter and a three-phase motor. A first terminal of the three-phase inverter is connected to a positive electrode of a power battery. A second terminal of the three-phase inverter is connected to a negative electrode of the power battery Three phase coils of the three-phase motor are respectively connected to midpoints of three phase legs of the three-phase inverter. The motor drive apparatus is configured to simultaneously control (i) a process of charging the power battery by a power supply module, (ii) a torque of the three-phase motor at a zero output, and (iii) the three-phase inverter and the three-phase motor to heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase motor.
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公开(公告)号：US20230038790A1
公开(公告)日：2023-02-09
申请号：US17790398
申请日：2020-12-10
Applicant: BYD COMPANY LIMITED
Inventor： Heping LING , Hua PAN , Feiyue XIE , Ri HUANG , Yihao ZHENG
IPC: B60L58/27 , H02P27/08 , H02J7/00 , H01M10/42 , H01M10/44 , H01M10/615 , H01M10/625 , H01M10/63
Abstract: The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on/off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.
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Patent Agency Ranking
公开(公告)号：US20210354543A1
公开(公告)日：2021-11-18
申请号：US17287068
申请日：2019-10-25
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Zhen ZHAI
Abstract: A hybrid power-driven system and a vehicle are provided. The hybrid power-driven system includes an engine, a transmission, and a motor power apparatus. The transmission includes a transmission mechanism and a main reducer. The motor power apparatus includes a motor and a power distribution mechanism. The power distribution mechanism includes a motor power distribution shaft, a mode selection apparatus, a first transmission apparatus, and a second transmission apparatus. The motor power distribution shaft is disposed independently from the transmission mechanism, and the motor power distribution shaft is disposed independently from the motor. A motor driven gear configured to receive power of the motor is disposed on the motor power distribution shaft.
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公开(公告)号：US20190308497A1
公开(公告)日：2019-10-10
申请号：US16346507
申请日：2017-10-30
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Zhen ZHAI , Youbin XU , Wei HUANG
Abstract: The present invention discloses a power transmission system and a vehicle having same. The power transmission system includes: a power source; a speed change unit; a first motor generator, where the first motor generator is power-coupled to the speed change unit; a speed change unit output portion, where the speed change unit output portion is constructed to be suitable for outputting power output through the speed change unit; a system power output portion; a mode conversion device, where the speed change unit output portion is power-coupled to or power-decoupled from the system power output portion through the mode conversion device, and the speed change unit output portion is power-coupled to the system power output portion through the mode conversion device, so that the mode conversion device is suitable for decelerating the power received from the speed change unit output portion and then outputting the decelerated power to the system power output portion; and a power switching device, where the speed change unit is power-coupled to or power-decoupled from the speed change unit output portion through the power switching device.
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公开(公告)号：US20190299767A1
公开(公告)日：2019-10-03
申请号：US16346524
申请日：2017-10-30
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Zhen ZHAI , Youbin XU , Wei HUANG
Abstract: A power transmission system includes: a power source; a speed change unit, where the speed change unit is suitable for being selectively power-coupled to the power source; a first motor generator unit; a system power output portion; a first mode conversion device, where at least one of the speed change unit and the first motor generator unit is power-coupled to or power-decoupled from the system power output portion through the first mode conversion device; and a second mode conversion device, where the speed change unit can be power-coupled to or power-decoupled from the first mode conversion device through the second mode conversion device, and the speed change unit can be power-coupled to the first mode conversion device through the second mode conversion device, so that power from the power source is decelerated sequentially through the speed change unit and the second mode conversion device and then output to the first mode conversion device.
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公开(公告)号：US20190255942A1
公开(公告)日：2019-08-22
申请号：US16346499
申请日：2017-10-30
Applicant: BYD COMPANY LIMITED
Inventor： Heping LING , Zhen ZHAI , Wei HUANG , Youbin XU
Abstract: The power transmission system includes: a power source; a first motor generator unit; a system power output portion; and a mode conversion device, where the mode conversion device includes: an input portion, a first conversion portion, a second conversion portion and an output portion, the output portion is connected to an input end of the system power output portion, the input portion is suitable for outputting power from at least one of the power source and the first motor generator unit, the input portion is selectively connected to one of the first conversion portion and the second conversion portion, and each of the first conversion portion and the second conversion portion cooperates with the output portion to perform transmission; and the input portion is connected to the second conversion portion, so that a rotational speed output by the input portion is reduced and then output to the input end of the system power output portion.
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10.发明申请公开(公告)号：US20250042220A1
公开(公告)日：2025-02-06
申请号：US18924086
申请日：2024-10-23
Applicant: BYD COMPANY LIMITED
Inventor： Yubo LIAN , Heping LING , Wei HUANG , Zhen ZHAI , Gan SONG
IPC: B60H1/00
Abstract: A vehicle air conditioning system includes a first passenger compartment heating loop and a first battery pack heat exchange loop. The first passenger compartment heating loop and the first battery pack heat exchange loop share a compressor and an out-vehicle condenser. The first passenger compartment heating loop further includes an in-vehicle condenser, the first battery pack heat exchange loop further includes a heat conducting component connected to a power battery. The power battery is connected to a self-heating circuit used for self-heating the power battery; and an outlet of the compressor is in communication with an inlet of the in-vehicle condenser. An outlet of the in-vehicle condenser is in communication with an inlet of the out-vehicle condenser, and an outlet of the out-vehicle condenser is in communication with an inlet of the compressor.
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