公开(公告)号：US12170498B2

公开(公告)日：2024-12-17

申请号：US18008056

申请日：2021-06-04

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Changjiu Liu ,  Haijun Liu ,  Yunfeng Wu

IPC: H02P5/68 ,  H01M10/42 ,  H01M10/46 ,  H02J7/34 ,  H02M1/32 ,  H02M7/5387 ,  H02P21/00 ,  H02P27/08 ,  B60R16/03

Abstract: An energy conversion apparatus includes: a first switch module, a motor inverter having a first bus terminal connected with a first end of a battery and a second bus terminal connected with a second end of the battery through the first switch module, a motor winding having a first end connected with a midpoint end of the motor inverter, and a second switch module and a first capacitor connected in series. A first end of the serial-connected second switch module and the first capacitor is connected with a second end of the motor winding. A second end of the serial-connected second switch module and the first capacitor is connected with the second bus terminal.

公开(公告)号：US12132432B2

公开(公告)日：2024-10-29

申请号：US18074233

申请日：2022-12-02

Applicant: BYD COMPANY LIMITED

Inventor： Heping Ling ,  Lei Yan ,  Yong Xiong ,  Chen Hong ,  Junwei Zhang

IPC: H02P25/22 ,  H02P27/06 ,  H02P29/68

CPC classification number: H02P29/68 ,  H02P27/06

Abstract: An energy conversion device is provided, including: a first electrical motor control circuit, where the first electrical motor control circuit is connected with a battery pack; a second electrical motor control circuit, where the second electrical motor control circuit is connected with the first electrical motor control circuit in parallel; and a controller, configured to: when operating in a first control mode, control the first electrical motor control circuit to charge and discharge the battery pack to heat the battery pack, and control the second electrical motor control circuit to output torque.

公开(公告)号：US12080863B2

公开(公告)日：2024-09-03

申请号：US17416884

申请日：2019-12-20

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Hua Pan ,  Yuxin Zhang ,  Hao Chen

IPC: H01M10/615 ,  B60L3/00 ,  B60L58/27 ,  H01M10/42 ,  H01M10/48 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6571

CPC classification number: H01M10/615 ,  B60L3/0046 ,  B60L58/27 ,  H01M10/425 ,  H01M10/486 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6571 ,  B60L2240/545

Abstract: This application provides a vehicle and a power battery heating apparatus and method thereof. In the method, when a current temperature value of a power battery is lower than a preset temperature value, and a heating condition of the power battery meets a preset condition, a three-phase inverter is controlled to cause a three-phase alternating current motor to generate heat to heat a coolant flowing through the power battery. A preset quadrature-axis current and a corresponding preset direct-axis current are obtained to control the three-phase inverter to adjust a phase current of the three-phase alternating current motor in the heating process, so that electromagnetic torque with a small torque value is outputted at a motor shaft. The electromagnetic torque causes the motor output shaft to output a pre-tightening force to the transmission mechanism, thereby eliminating an engagement gap and effectively avoiding jitters of the vehicle.

公开(公告)号：US12040727B2

公开(公告)日：2024-07-16

申请号：US17764038

申请日：2020-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Jicheng Li ,  Hua Pan ,  Li Mou

IPC: H02M7/219 ,  B60L15/20 ,  B60L55/00 ,  B60L58/10 ,  H02M1/42 ,  H02M7/797 ,  H02P21/14 ,  H02P29/64

CPC classification number: H02P21/14 ,  B60L58/10

Abstract: A cooperative control method is disclosed. The cooperative control method includes: acquiring a target heating power, a target driving power, and a target charging and discharging power; acquiring a first heating power of a motor coil according to the target charging and discharging power; acquiring a second heating power of the motor coil according to the target driving power; adjusting a first quadrature axis current and a first direct axis current to a target quadrature axis current and a target direct axis current to cause the difference between the sum of the first heating power and the second heating power and the target heating power to be within the preset range; and acquiring a sampling current value on each phase coil and a motor rotor position, and calculating a duty cycle of each phase bridge arm in a reversible PWM rectifier according to the above information.

公开(公告)号：US11916504B2

公开(公告)日：2024-02-27

申请号：US17763962

申请日：2020-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Heping Ling ,  Jicheng Li ,  Changjiu Liu ,  Feiyue Xie ,  Yuxin Zhang

IPC: H02P1/00 ,  H02P3/00 ,  H02P5/00 ,  H02P27/08 ,  B60L53/22 ,  B60L1/02 ,  H02M7/797 ,  H02P25/22

CPC classification number: H02P27/08 ,  B60L1/02 ,  B60L53/22 ,  H02M7/797 ,  H02P25/22

Abstract: An energy conversion device is provided. The energy conversion device includes a reversible pulse-width modulation (PWM) rectifier (102) and a motor coil (103). The motor coil (103) includes L sets of winding units, and each set of winding unit is connected with the reversible PWM rectifier (102), where L≥2 and is a positive integer. At least two sets of heating circuits of a to-be-heated device are formed by an external power supply (100), the reversible PWM rectifier (102), and the winding units in the motor coil (103). The energy conversion device controls the reversible PWM rectifier (102) according to a control signal, so that a current outputted from the external power supply (100) flows through at least two sets of winding units in the motor coil (103) to generate heat.

公开(公告)号：US11305581B2

公开(公告)日：2022-04-19

申请号：US16474244

申请日：2017-12-15

Applicant: BYD COMPANY LIMITED

Inventor： Heping Ling ,  Zhen Zhai ,  Changan Huang ,  Yongmeng Luo

IPC: B60K7/00 ,  B60B35/14 ,  B60K17/356 ,  F16D11/14 ,  F16H1/28

Abstract: The present specification discloses a drive shaft locking device, a power-driven system, and a vehicle. The drive shaft locking device comprises a planetary gear mechanism comprising a sun gear, a planetary gear, a planetary carrier, and a gear ring. A first drive shaft is connected with one of the sun gear, the planetary carrier, and the gear ring, and a second drive shaft is connected with another one of the sun gear, the planetary carrier, and the gear ring. A power joint device comprises a first joint part and a second joint part. The first drive shaft and the first joint part synchronously rotate, and the second drive shaft and the second joint part synchronously rotate. A joint part drive comprises a drive part to drive a drive needle for joining the second joint part with the first joint part along the axial direction.

公开(公告)号：US10322718B2

公开(公告)日：2019-06-18

申请号：US15753105

申请日：2016-08-18

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Ning Wang ,  Yanfei Xiong ,  Ting Wen

IPC: B60K7/00 ,  B60W10/08 ,  B60W10/184 ,  B60W30/02 ,  B60K17/356 ,  B60L3/00 ,  B60L3/10 ,  B60L7/10 ,  B60L7/18 ,  B60L11/18 ,  B60K17/04

Abstract: A vehicle stability control system includes a signal collection sensor and a vehicle controller (10). The signal collection sensor is configured to collect a vehicle condition information parameter, and the vehicle controller (10) is configured to calculate a control yaw moment according to the vehicle condition information parameter. The control yaw moment is used to cancel a difference between an estimated yaw moment and an actual yaw moment. The vehicle controller (10) is further configured to determine according to the vehicle condition information parameter whether the vehicle (100) is in a stable region or a non-stable region in the case of tire blow-out, and allocate the control yaw moment to four wheels (101) according to a vehicle stability condition, thus implementing vehicle stability control. A vehicle stability control method and a vehicle (100) with the vehicle stability control system are also disclosed.

公开(公告)号：US09840251B2

公开(公告)日：2017-12-12

申请号：US15080332

申请日：2016-03-24

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Changjiu Liu ,  Guorui Liu ,  Dongyue Huang

IPC: B60W20/12 ,  B60W20/13 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26

CPC classification number: B60W20/12 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/10 ,  B60W20/13 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2510/244 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/103 ,  B60W2540/16 ,  B60W2540/30 ,  B60W2550/142 ,  B60W2710/0677 ,  B60W2710/086 ,  F02N11/00 ,  F02N2200/061 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/101 ,  F02N2200/124 ,  Y02T10/52 ,  Y02T10/6286 ,  Y10S903/93

Abstract: The present disclosure provides a hybrid electric vehicle, a drive control method and a drive control device of a hybrid electric vehicle. The drive control method includes: obtaining a current gear position of the hybrid electric vehicle and a current electric charge level of a power battery; obtaining a slope of a road on which the hybrid electric vehicle is driving, if the current gear position of the hybrid electric vehicle and the current electric charge level of the power battery meet a preset requirement; and causing a working state of an engine and/or a motor of the hybrid electric vehicle according to the slope of the road on which the hybrid electric vehicle is driving.

公开(公告)号：US09821793B2

公开(公告)日：2017-11-21

申请号：US15080326

申请日：2016-03-24

Applicant: BYD COMPANY LIMITED

Inventor： Yubo Lian ,  Heping Ling ,  Changjiu Liu ,  Guorui Liu ,  Chengming Lai ,  Guizhong Li

IPC: B60L9/00 ,  B60W20/13 ,  B60K6/442 ,  B60W10/06 ,  B60W10/08 ,  B60W50/00 ,  B60W20/40

CPC classification number: B60W20/13 ,  B60K6/442 ,  B60K6/48 ,  B60K2006/4808 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W20/10 ,  B60W20/40 ,  B60W50/0097 ,  B60W2510/1005 ,  B60W2510/244 ,  B60W2520/10 ,  B60W2540/103 ,  B60W2540/30 ,  B60W2550/142 ,  B60W2550/20 ,  B60Y2200/92 ,  B60Y2300/182 ,  B60Y2300/43 ,  B60Y2300/60 ,  B60Y2300/91 ,  F02N11/00 ,  F02N2200/061 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/101 ,  F02N2200/124 ,  Y02T10/6221 ,  Y02T10/626 ,  Y02T10/6291 ,  Y10S903/93

Abstract: The present disclosure provides a hybrid electric vehicle, a drive control method and a drive control device of a hybrid electric vehicle. The drive control method includes: obtaining a current gear position of the hybrid electric vehicle and a current electric charge level of a power battery; determining whether the vehicle is within a speed start-stop interval according to the current gear position of the hybrid electric vehicle and the current electric charge level of the power battery; obtaining a slope of a road on which the vehicle is driving and a current speed of the hybrid electric vehicle, if the vehicle is within a speed start-stop interval; and controlling a working state of an engine and/or a motor of the hybrid electric vehicle according to the slope of the road on which the vehicle is driving and the current speed of the vehicle.

公开(公告)号：US12218613B2

公开(公告)日：2025-02-04

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

IPC: H02P27/08 ,  H02J7/00 ,  H02P29/62

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.