WO2024255070A1 - 充放电电路、方法、计算设备及其控制装置 - Google Patents

充放电电路、方法、计算设备及其控制装置 Download PDF

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Publication number
WO2024255070A1
WO2024255070A1 PCT/CN2023/127785 CN2023127785W WO2024255070A1 WO 2024255070 A1 WO2024255070 A1 WO 2024255070A1 CN 2023127785 W CN2023127785 W CN 2023127785W WO 2024255070 A1 WO2024255070 A1 WO 2024255070A1
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WO
WIPO (PCT)
Prior art keywords
battery
bridge arm
switch module
heating
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/127785
Other languages
English (en)
French (fr)
Inventor
吴凯
黄孝键
陈伟
陈兴
潘先喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to KR1020257043783A priority Critical patent/KR20260015307A/ko
Priority to JP2025572236A priority patent/JP2026519874A/ja
Priority to EP23941294.3A priority patent/EP4726951A1/en
Publication of WO2024255070A1 publication Critical patent/WO2024255070A1/zh
Priority to US19/413,672 priority patent/US20260095055A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H02J7/585—Sequential battery discharge in systems with a plurality of batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/60—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/19—Switching between serial connection and parallel connection of battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/22—Balancing the charge of battery modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/25—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by controlling the electric load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/50—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries acting upon multiple batteries simultaneously or sequentially
    • H02J7/575—Parallel/serial switching of connection of batteries to charge or load circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/855—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/865—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/875—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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    • H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • H—ELECTRICITY
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    • H02J2207/00—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries
    • H02J2207/40—Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage

Definitions

  • the present application relates to the field of battery technology, and in particular to a charging and discharging circuit, method, computing device and storage medium thereof.
  • the embodiments of the present application provide a charging and discharging circuit, method, computing device and storage medium thereof, which utilize the alternating current generated by the charging and discharging circuit between the dual-drive motor and the battery to realize self-heating of the battery.
  • the present application can flexibly adjust the charging and discharging circuit between the power battery and the energy storage element without changing the original motor structure; while reducing costs, it can flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating scheme and improve the heating rate.
  • the heating change point of the dual motors is reduced, the heating cost is reduced, and the battery heating rate is increased.
  • the present application provides a charging and discharging circuit, including a power module, a first heating module, a second heating module and a first regulating switch module; the first heating module and the second heating module are both connected to the power module; the first heating module includes a first energy storage element; the second heating module includes a second energy storage element; the power module includes multiple battery branches; the first regulating switch module is connected between the first energy storage element and the second energy storage element.
  • the charging and discharging circuit provided in the embodiment of the present application, two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the first heating module and the second heating module can be equivalent to two groups of drive motors.
  • the first energy storage element in one group of motors is connected to the second energy storage element in the other group of motors through the first adjustment switch module.
  • the charging and discharging circuit between the power battery and the energy storage element is flexibly adjusted to realize the self-heating of the battery of the dual motors; by adjusting the first switch module and the second switch module in the two groups of motors, the charging and discharging of the power module can be flexibly adjusted, and then the self-heating method of the power battery can be flexibly adjusted to match the heating requirements of various scenarios.
  • the first regulating switch module is connected between a neutral point of the motor winding of the first energy storage element and a neutral point of the motor winding of the second energy storage element.
  • the charging and discharging circuit provided in the embodiment of the present application, by leading out the neutral point of the motor and then closing the connection through the first regulating switch module to perform circuit heating control, not only reduces the heating change point of the dual motors, reduces the heating cost, but also improves the battery heating rate; while reducing the cost, the charging and discharging of the dual-drive motors can be flexibly adjusted to perform a battery self-heating solution to meet the heating needs in a variety of scenarios.
  • the power module includes a first battery and a second battery connected to each other; the first battery is connected to the first heating module; and the second battery is connected to the second heating module.
  • the charging and discharging circuit provided in the embodiment of the present application includes a power module including two battery branches, a first battery and a second battery.
  • the charging and discharging circuit between the two batteries and the energy storage element is flexibly adjusted.
  • the self-heating method of the power battery is flexibly adjusted to match the heating requirements of various scenarios by adjusting the first switch module and the second switch module in the two groups of motors to flexibly adjust the charging and discharging of the power module.
  • the power module includes a first battery and a second battery
  • the charge and discharge circuit also includes a second regulating switch module; the second regulating switch module is connected between the first battery and the second battery; the first battery is connected to the first heating module; and the second battery is connected to the second heating module.
  • the power module includes two battery branches, a first battery and a second battery, and the two batteries are connected by a second regulating switch module, and the change of the connection mode of the electrically adjustable battery branches is controlled to match different charging and discharging requirements in the heating circuit, improve the system adaptability of the motor and increase the battery heating rate.
  • the second regulating switch module is connected between the positive side of the first battery and the positive side of the second battery.
  • the first battery and the second battery included in the power module are connected on the positive side through the second regulating switch module to form a common negative pole dual-motor heating topology circuit.
  • the circuit loop of the battery branch is controlled by the second regulating switch module to match different charging and discharging requirements in the heating circuit, thereby improving the system adaptability of the motor and increasing the battery heating rate.
  • the second regulating switch module is connected between the negative electrode side of the first battery and the negative electrode side of the second battery.
  • the first battery and the second battery included in the power module are connected on the negative electrode side through the second regulating switch module to form a common negative electrode dual-motor heating topology circuit.
  • the circuit loop of the battery branch is controlled by the second regulating switch module to match different charging and discharging requirements in the heating circuit, thereby improving the system adaptability of the motor and increasing the battery heating rate.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the positive side of the first battery is connected to the upper bridge arm of the first switch module
  • the positive side of the second battery is connected to the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the negative side of the second battery, the lower bridge arm of the first switch module, and the lower bridge arm of the second switch module.
  • the charging and discharging circuit provided in the embodiment of the present application has two energy storage elements connected by a first regulating switch module.
  • the heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure. While reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform battery self-heating solutions and increase the heating rate.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the positive side of the first battery is connected to the upper bridge arm of the first switch module
  • the positive side of the second battery is connected to the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the negative side of the second battery, the lower bridge arm of the first switch module, and the lower bridge arm of the second switch module.
  • the charging and discharging circuit provided in the embodiment of the present application, two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the present application provides an electrical device, including a control module and any one of the above charging and discharging circuits; the control module is connected to a first regulating switch module, a first switch module included in a first heating module, and a second switch module included in a second heating module, and the control module is used to regulate the charging and discharging between batteries of the power module.
  • the electrical equipment provided in the embodiment of the present application connects the first energy storage element in one group of motors to the second energy storage element in another group of motors through a control module and a first regulating switch module of the charging and discharging circuit, thereby realizing self-heating of the batteries of the dual motors in the dual-drive motor scenario, and flexibly adjusts the charging and discharging of the power module by adjusting the switch modules in the two groups of motors, thereby flexibly adjusting the self-heating method of the power battery to match the heating requirements of various scenarios; while reducing costs, it is possible to flexibly adjust the charging and discharging of the dual-drive motors to perform a battery self-heating solution to meet the heating requirements in various scenarios.
  • the present application provides a charging and discharging method, which is applied to the electrical equipment of the second aspect, comprising: controlling the first regulating switch module to be turned on in response to a battery heating instruction; and regulating the charging and discharging between batteries of the power module.
  • the charging and discharging method provided in the embodiment of the present application controls the first regulating switch module to be turned on according to the battery heating instruction.
  • the circuit structure is not changed and the charging and discharging circuit between the power battery and the energy storage element is flexibly adjusted to realize the self-heating of the battery of the dual motors; by adjusting the first switch in the two groups of motors
  • the module and the second switch module flexibly adjust the charging and discharging of the power module, which can flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating solution and improve the heating rate while reducing costs.
  • the power module includes a first battery and a second battery
  • the charge and discharge circuit also includes a second regulating switch module; the second regulating switch module is connected between the first battery and the second battery; regulating the charge and discharge between the batteries of the power module includes: disconnecting the second regulating switch module; regulating the charge and discharge between the first battery and the second battery.
  • the charging and discharging method provided in the embodiment of the present application after disconnecting the second regulating switch module, adjusts the charging and discharging circuit between the power battery and the energy storage element to realize self-heating of the battery of the dual motor; while reducing costs, it can flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating scheme and improve the heating rate.
  • the power module includes a first battery and a second battery
  • regulating the charge and discharge between the batteries of the power module includes: in a first period, controlling the first battery to discharge to the second battery; in a second period, controlling the second battery to discharge to the first battery.
  • the charging and discharging method provided in the embodiment of the present application controls the first battery to discharge to the second battery in the first time period; and controls the second battery to discharge to the first battery in the second time period, thereby being able to flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating scheme and improve the heating rate while reducing costs.
  • controlling the first battery to discharge to the second battery includes: in a first period, controlling the first battery to discharge to the first energy storage element and the second energy storage element; and in a second period, controlling the first energy storage element and the second energy storage element to discharge to the second battery.
  • the embodiment provided in this application specifically discloses that when controlling the first battery to discharge to the second battery, the first battery is controlled to discharge to the first energy storage element and the second energy storage element in the first period; the first energy storage element and the second energy storage element are controlled to discharge to the second battery in the second period, and in the self-heating process of the power module, continuous self-heating is achieved through different controls in different periods.
  • the battery self-heating scheme is realized by flexibly adjusting the charging and discharging of the dual-drive motor to improve the heating rate.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the first switch module includes a first bridge arm group
  • the second switch module includes a second bridge arm group
  • the positive side of the first battery is connected to the upper bridge arm of the first switch module
  • the positive side of the second battery is connected to the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the negative side of the second battery, the positive side of the first switch module, and the negative side of the second battery.
  • the lower bridge arm and the lower bridge arm of the second switch module control the first battery to discharge to the second battery, including: in the first time period, control the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group to be turned on; in the second time period, control the lower bridge arm of the second bridge arm group to be turned off, and turn on the upper bridge arm corresponding to the disconnected bridge arm.
  • the charging and discharging method provided in the embodiment of the present application specifically controls the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group to be turned on by specifically controlling the first time period when adjusting the discharge of the first battery to the second battery; and controls the lower bridge arm of the second bridge arm group to be turned off in the second time period, and turns on the upper bridge arm corresponding to the turned off bridge arm.
  • continuous self-heating is achieved through different controls in different time periods.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the first switch module includes a first bridge arm group
  • the second switch module includes a second bridge arm group
  • the positive side of the first battery is connected to the positive side of the second battery, the upper bridge arm of the first switch module, and the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the lower bridge arm of the first switch module
  • the negative side of the second battery is connected to the lower bridge arm of the second switch module
  • controlling the first battery to discharge to the second battery includes: in the first time period, controlling the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group to be turned on; in the second time period, controlling the turned-on upper bridge arm in the second bridge arm group to be turned off, and turning on the lower bridge arm corresponding to the turned-off bridge arm.
  • controlling the second battery to discharge into the first battery includes: in a first period, controlling the second battery to discharge into the first energy storage element and the second energy storage element; and in a second period, controlling the first energy storage element and the second energy storage element to discharge into the first battery.
  • the embodiment provided in the present application specifically discloses that when controlling the second battery to discharge to the first battery, the second battery is controlled to discharge to the first energy storage element and the second energy storage element during the first period; and the second period is controlled to discharge to the first energy storage element and the second energy storage element.
  • the first energy storage element and the second energy storage element discharge to the first battery, and during the self-heating process of the power module, continuous self-heating is achieved through different controls at different time periods.
  • the battery self-heating solution is flexibly adjusted by adjusting the charging and discharging of the dual-drive motor to improve the heating rate.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the first switch module includes a first bridge arm group
  • the second switch module includes a second bridge arm group
  • the positive side of the first battery is connected to the upper bridge arm of the first switch module
  • the positive side of the second battery is connected to the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the negative side of the second battery, the lower bridge arm of the first switch module, and the lower bridge arm of the second switch module
  • the second battery is controlled to discharge to the first battery, including: in the first time period, the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group are controlled to be turned on; in the second time period, the lower bridge arm that is turned on in the first bridge arm group is controlled to be turned off, and the upper bridge arm corresponding to the disconnected bridge arm is turned on.
  • the charging and discharging method provided in the embodiment of the present application specifically controls the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group to be turned on by specifically controlling the first time period when adjusting the discharge of the second battery to the first battery; and controls the turned-on lower bridge arm in the first bridge arm group to be turned off in the second time period, and turns on the upper bridge arm corresponding to the turned-off bridge arm.
  • continuous self-heating is achieved through different controls in different time periods.
  • the first heating module includes a first switch module
  • the second heating module includes a second switch module
  • the first switch module includes a first bridge arm group
  • the second switch module includes a second bridge arm group
  • the positive side of the first battery is connected to the positive side of the second battery, the upper bridge arm of the first switch module, and the upper bridge arm of the second switch module
  • the negative side of the first battery is connected to the lower bridge arm of the first switch module
  • the negative side of the second battery is connected to the lower bridge arm of the second switch module
  • controlling the second battery to discharge to the first battery includes: in the first time period, controlling the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group to be turned on; in the second time period, controlling the turned-on upper bridge arm in the first bridge arm group to be turned off, and turning on the upper bridge arm corresponding to the turned-off bridge arm.
  • the charging and discharging method provided in the embodiment of the present application specifically controls the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group to be turned on by specifically controlling the first time period when adjusting the second battery to discharge to the first battery; in the second time period, the upper bridge arm of the first bridge arm group is turned off, and the lower bridge arm of any phase in the second bridge arm group is turned on.
  • the upper bridge arm corresponding to the disconnected bridge arm is turned on.
  • the present application provides a computing device, comprising: a memory: for storing executable instructions; and a processor: for connecting to the memory to execute the executable instructions to complete the charging and discharging method as any one of the third aspect.
  • two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the present application provides a computer-readable storage medium having a computer program stored thereon; the computer program is executed by a processor to implement the charging and discharging method as described in any one of the third aspects.
  • the computer-readable storage medium provided in the embodiment of the present application has two energy storage elements connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • FIG. 1 is a modular schematic diagram of a charge and discharge circuit according to one or more embodiments.
  • FIG. 2 is a circuit diagram 1 of a charge and discharge circuit according to one or more embodiments.
  • FIG. 3 is a second circuit diagram of a charge and discharge circuit according to one or more embodiments.
  • FIG. 4 is a third circuit diagram of a charge and discharge circuit according to one or more embodiments.
  • FIG. 5 is a fourth circuit diagram of a charge and discharge circuit according to one or more embodiments.
  • FIG. 6 is a schematic diagram of the structure of an electric device according to one or more embodiments.
  • FIG. 7 is a schematic diagram of steps of a charging and discharging method according to one or more embodiments.
  • FIG. 8 is a schematic diagram of steps for regulating charging and discharging between batteries of a power module according to one or more embodiments.
  • FIG. 9 is a schematic diagram of steps of controlling a first battery to discharge into a second battery according to one or more embodiments.
  • FIG. 10 is a schematic diagram of steps of controlling the second battery to discharge into the first battery according to one or more embodiments.
  • FIG. 11 is a circuit diagram 1 of a first battery discharging from a second battery in a charge and discharge method according to one or more embodiments.
  • FIG. 12 is a second circuit diagram of the first battery discharging to the second battery in the charging and discharging method according to one or more embodiments.
  • FIG. 13 is a circuit diagram 1 of the second battery discharging to the first battery in the charge and discharge method according to one or more embodiments.
  • FIG. 14 is a second circuit diagram of the second battery discharging to the first battery in the charging and discharging method according to one or more embodiments.
  • FIG. 15 is a circuit diagram 1 of a first battery discharging from a second battery in a charge and discharge method according to one or more embodiments.
  • FIG. 16 is a second circuit diagram of the first battery discharging to the second battery in the charge and discharge method according to one or more embodiments.
  • FIG. 17 is a circuit diagram 1 of the second battery discharging to the first battery in the charge and discharge method according to one or more embodiments.
  • FIG. 18 is a second circuit diagram of the second battery discharging to the first battery in the charge and discharge method according to one or more embodiments.
  • FIG. 19 is a block diagram of a computing device according to one or more embodiments.
  • the coordinated control of the dual-motor controller is very important. It is very important to reduce the noise, vibration and harshness NVH (Noise, Vibration, Harshness) and rotor heating problems generated during the battery heating process and increase the battery heating rate. These are directly related to the customer's experience.
  • NVH Noise, Vibration, Harshness
  • the embodiments of the present application provide a charging and discharging circuit, method, computing device and storage medium thereof, which utilize the alternating current generated by the charging and discharging circuit between the dual-drive motor and the battery to achieve self-heating of the battery.
  • the present application can flexibly adjust the charging and discharging circuit between the power battery and the energy storage element without changing the original motor structure; while reducing costs, it can flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating scheme and improve the heating rate.
  • the heating change point of the dual motors is reduced, the heating cost is reduced, and the battery heating rate is increased.
  • the first heating module and the second heating module in the embodiment of the present application can be equivalent to two sets of drive motors.
  • the charge and discharge circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charge and discharge of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the power module in the embodiment of the present application may include but is not limited to lithium-ion batteries, lithium metal batteries, lead-acid batteries, nickel-ion batteries, nickel-hydrogen batteries, lithium-sulfur batteries, lithium-air batteries or sodium-ion batteries.
  • the battery in the embodiment of the present application can be a battery cell monomer, or a battery module or a battery pack.
  • the battery can be used in power devices such as automobiles and ships. For example, it can be used in power vehicles to power the motors of power vehicles as a power source for electric vehicles.
  • the battery can also power other electrical devices in electric vehicles, such as air conditioners and car players in the car.
  • the drive motor and its control system are one of the core components of new energy vehicles. Its driving characteristics determine the main performance indicators of the vehicle.
  • the motor drive system of new energy vehicles is mainly composed of electric motors (i.e. motors), power converters, motor controllers (e.g., inverters), various detection sensors, and power supplies.
  • the motor is a rotating electromagnetic machine that operates on the principle of electromagnetic induction and is used to realize the conversion of electrical energy into mechanical energy. During operation, it absorbs electrical power from the electrical system and outputs mechanical power to the mechanical system.
  • the electrical devices and computing equipment include but are not limited to vehicles, ships, or spacecraft.
  • the existing battery heating control strategy in the battery heating process has the problem of low battery heating rate during battery pulse heating, high rotor magnetic steel temperature and large vibration noise. These problems are prominent in the market, reducing the customer's experience of use. Therefore, in comparison, the present application proposes a charging and discharging circuit, method, computing device and storage medium thereof, which can flexibly adjust the charging and discharging circuit between the power battery and the energy storage element without changing the original motor structure by controlling the on and off of the different phase bridge arms of the switch module; can flexibly adjust the charging and discharging of the dual-drive motor to perform battery self-heating scheme and improve the heating rate while reducing costs.
  • the battery heating scheme of the embodiment of the present application can be based on a battery system in which multiple branch batteries are connected in parallel to supply power. It is necessary to change the physical connection of the battery so that the two-branch batteries are connected in reverse series during heating. Then, the charging and discharging circuit between the power battery and the energy storage element is flexibly adjusted by turning on and off the switching element to realize the flow of pulse current between multiple battery packs.
  • the reverse series structure of batteries is to reorganize the connection of circuits so that the positive electrode of one group of batteries is connected to the positive electrode of another group of batteries, or the negative electrode of one group of batteries is connected to the negative electrode of another group of batteries.
  • the battery heating scheme of the embodiment of the present application is also based on a system where multiple branch batteries independently power the motor, so there is no need to change the connection method between the batteries.
  • the dual-branch battery of the power battery system includes a first battery and a second battery.
  • the battery system BMS Battery Management System
  • the motor controller MCU Motor control unit
  • the vehicle controller VCU Vehicle control unit determines whether to turn on the pulse heating device to heat the battery based on the heating request sent by the BMS and the motor working status sent by the MCU.
  • the VCU determines that the battery SOC status and the motor operating status meet the heating conditions
  • Different control methods are used for specific dual-motor circuit topology structures, including two dual-motor circuit systems: one is a dual-motor system powered by multiple branch batteries in parallel, and the other is a dual-motor system in which multiple branch batteries independently power the motors.
  • the MCU controls the on and off of the first motor controller switch module and the second motor controller switch module to realize mutual charging and discharging of the two battery groups, and generate heat inside the battery.
  • the BMS determines whether the battery pack temperature is abnormal. If so, it sends the temperature rise abnormality information to the vehicle controller.
  • the vehicle controller forwards the temperature rise abnormality information to the MCU, the motor controller stops working, and the battery pack switches to the initial form.
  • the BMS determines whether the battery pack temperature meets the requirements. If so, the vehicle controller forwards the stop driving pulse heating information to the motor controller, stops heating, and switches the battery pack to the initial mode. Otherwise, the above heating process is repeated until the heating temperature meets the requirements.
  • the charging and discharging scheme of the embodiment of the present application improves the problem of low heating rate of the original battery, so that the temperature rise rate of the battery pack is significantly improved.
  • the charging and discharging circuits, methods, computing devices, and storage media thereof reuse a second motor drive system to implement a battery self-heating technology with adjustable battery temperature rise rate at a relatively low cost.
  • the first heating module and the second heating module of the embodiment of the present application can be equivalent to two groups of drive motors, the first energy storage element and the second energy storage element can be equivalent to their respective motor windings, and the first switch module and the second switch module can be equivalent to their respective motor controllers.
  • Fig. 1 is a modular schematic diagram of a charge-discharge circuit provided in an embodiment of the present application.
  • Fig. 2 is a circuit schematic diagram of a charge-discharge circuit 100 provided in an embodiment of the present application.
  • the charge and discharge circuit 100 includes a power module 10, a first heating module 20, a second heating module 30 and a first regulating switch module; the first heating module 20 and the second heating module 30 are both connected to the power module 10; the first heating module 20 includes a first energy storage element 202; the second heating module 30 includes a first energy storage element 203; the second heating module 30 includes a first energy storage element 204; the first heating module 20 includes a first energy storage element 205; the second heating module 30 includes a first energy storage element 206; the first heating module 20 includes a first energy storage element 207; the second heating module 30 includes a first energy storage element 208; the first heating module 20 includes a first energy storage element 209; the second heating module 30 includes a first energy storage element 201; the first heating module 20 includes a first energy storage element 20
  • the thermal module 30 includes a second energy storage element 302 ; the power module 10 includes a plurality of battery branches; and the first regulating switch module is connected between the first energy storage
  • the charging and discharging circuit provided in the embodiment of the present application, two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme and increase the heating rate.
  • the first heating module 20 and the second heating module 30 can be equivalent to two groups of drive motors.
  • the first adjustment switch module is used to connect the first energy storage element 202 in one group of motors to the second energy storage element 302 in the other group of motors.
  • the charging and discharging circuits between the power battery and the energy storage element are flexibly adjusted to realize the self-heating of the batteries of the dual motors; the charging and discharging of the power module 10 is flexibly adjusted by adjusting the first switch module 201 and the second switch module 301 in the two groups of motors, and then the self-heating method of the power battery is flexibly adjusted to match the heating requirements of various scenarios.
  • the first regulating switch module is connected between the neutral point of the motor winding of the first energy storage element 202 and the neutral point of the motor winding of the second energy storage element 302 .
  • the embodiment of the present application leads out the neutral point of the motor and then performs circuit heating control after closing the connection through the first regulating switch module, which not only reduces the heating change point of the dual motors, reduces the heating cost, but also improves the battery heating rate; while reducing the cost, the charging and discharging of the dual-drive motors are flexibly adjusted to perform a battery self-heating solution to meet the heating needs in various scenarios.
  • Fig. 2 is a circuit schematic diagram 1 of a charge-discharge circuit according to one or more embodiments.
  • Fig. 3 is a circuit schematic diagram 2 of a charge-discharge circuit according to one or more embodiments.
  • this is a charging and discharging circuit based on a power system in which multiple branch batteries independently supply power to the motor.
  • the power module 10 includes a first battery B1 and a second battery B2 connected to each other; the first battery B1 is connected to the first heating module 20 ; and the second battery B2 is connected to the second heating module 30 .
  • the charging and discharging circuit provided in the embodiment of the present application is that the first battery B1 and the second battery B2 independently supply power to the motors connected to them during motor operation.
  • the power module 10 includes two battery branches, the first battery B1 and the second battery B2. In the dual-drive motor scenario, the two batteries and the storage can be flexibly adjusted.
  • the charging and discharging circuits between the energy elements realize self-heating of the batteries of the dual motors; the charging and discharging of the power module 10 is flexibly adjusted by adjusting the first switch module 201 and the second switch module 301 in the two groups of motors, and then the self-heating method of the power battery is flexibly adjusted to match the heating requirements of various scenarios.
  • Fig. 4 is a third circuit diagram of a charge-discharge circuit according to one or more embodiments.
  • Fig. 5 is a fourth circuit diagram of a charge-discharge circuit according to one or more embodiments.
  • a charging and discharging circuit is provided based on a power system in which multiple branch batteries are connected in parallel to supply power.
  • the power module 10 includes a first battery B1 and a second battery B2, and the charge and discharge circuit also includes a second regulating switch module; the second regulating switch module is connected between the first battery B1 and the second battery B2; the first battery B1 is connected to the first heating module 20; the second battery B2 is connected to the second heating module 30.
  • the power module 10 includes two battery branches, a first battery B1 and a second battery B2, and the two batteries are connected by a second regulating switch module to control the change of the connection mode of the electrically adjustable battery branches to match different charging and discharging requirements in the heating circuit, improve the system adaptability of the motor and increase the battery heating rate.
  • the second regulating switch module is connected between the positive electrode side of the first battery B1 and the positive electrode side of the second battery B2 .
  • the power module 10 includes a first battery B1 and a second battery B2 which are connected on the positive side through a second regulating switch module to form a common negative pole dual-motor heating topology circuit.
  • the circuit loop of the battery branch is controlled by the second regulating switch module to match different charging and discharging requirements in the heating circuit, thereby improving the system adaptability of the motor and increasing the battery heating rate.
  • the second regulating switch module is connected between the negative electrode side of the first battery B1 and the negative electrode side of the second battery B2 .
  • the power module 10 includes a first battery B1 and a second battery B2 which are connected on the negative electrode side through a second regulating switch module to form a common positive electrode dual-motor heating topology circuit.
  • the circuit loop of the battery branch is controlled by the second regulating switch module to match different charging and discharging requirements in the heating circuit, thereby improving the system adaptability of the motor and increasing the battery heating rate.
  • the positive side of the first battery B1 is connected to the upper bridge arm of the first switch module 201, and the positive side of the second battery B2 is connected to the upper bridge arm of the second switch module 301; the negative side of the first battery B1 is connected to the negative side of the second battery B2, the lower bridge arm of the first switch module 201, and the lower bridge arm of the second switch module 301.
  • the charging and discharging circuit provided in the embodiment of the present application, two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the power module 10 In terms of connecting the power module 10 to the dual motors, it can be implemented as shown in Figures 3 and 5, based on the battery common positive dual motor heating topology.
  • the positive side of the first battery B1 is connected to the upper bridge arm of the first switch module 201, and the positive side of the second battery B2 is connected to the upper bridge arm of the second switch module 301; the negative side of the first battery B1 is connected to the negative side of the second battery B2, the lower bridge arm of the first switch module 201, and the lower bridge arm of the second switch module 301.
  • the charging and discharging circuit provided in the embodiment of the present application, two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the circuit also includes the three bridge arm groups of the inverter and the neutral connection line of the motor.
  • the motor includes a three-phase winding and is an original component of the electric vehicle.
  • FIG. 6 is a schematic diagram of the structure of an electric device according to one or more embodiments.
  • control module 40 includes a control module 40 and a charging and discharging circuit 100 in any of the above embodiments; the control module 40 is connected to the first regulating switch module, the first switch module 20 included in the first heating module 20, and the second switch module 301 included in the second heating module 30, and the control module is used to adjust the charging and discharging between the batteries of the power module 10.
  • the electric device provided in the embodiment of the present application is controlled by a control module and a first regulating circuit of the charging and discharging circuit.
  • the switch module connects the first energy storage element 202 in one group of motors to the second energy storage element 302 in another group of motors, thereby realizing self-heating of the batteries of the dual motors in the dual-drive motor scenario.
  • the charging and discharging of the power module 10 can be flexibly adjusted, thereby flexibly adjusting the self-heating method of the power battery to match the heating requirements of various scenarios. While reducing costs, the charging and discharging of the dual-drive motors can be flexibly adjusted to perform battery self-heating solutions to meet the heating requirements in various scenarios.
  • FIG. 7 is a schematic diagram of steps of a charging and discharging method according to one or more embodiments.
  • the present application provides a charging and discharging method, which is applied to an electric device 200, comprising:
  • the charging and discharging method provided in the embodiment of the present application controls the conduction of the first regulating switch module according to the battery heating instruction.
  • the circuit structure is not changed and the charging and discharging circuit between the power battery and the energy storage element is flexibly adjusted to realize the self-heating of the battery of the dual motors.
  • the first switch module 201 and the second switch module 301 in the two groups of motors to flexibly adjust the charging and discharging of the power module 10
  • regulating the charge and discharge between the batteries of the power module 10 in S2 includes: disconnecting the second regulating switch module; and regulating the charge and discharge between the first battery B1 and the second battery B2.
  • the charging and discharging method provided in the embodiment of the present application after disconnecting the second regulating switch module, adjusts the charging and discharging circuit between the power battery and the energy storage element to realize self-heating of the battery of the dual motor; while reducing costs, it can flexibly adjust the charging and discharging of the dual-drive motor to perform a battery self-heating scheme and improve the heating rate.
  • FIG. 8 is a schematic diagram of steps for regulating the charge and discharge between batteries of the power module 10 according to one or more embodiments.
  • the power module 10 includes a first battery B1 and a second battery B2, and S2 regulates the charge and discharge between the batteries of the power module 10, including:
  • the charging and discharging method provided in the embodiment of the present application controls the first battery B1 to charge the second battery B1 during the first period of time.
  • Battery B2 discharges; in the second period, the second battery B2 is controlled to discharge to the first battery B1, so that while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating solution to increase the heating rate.
  • FIG. 9 is a schematic diagram of steps of controlling the first battery B1 to discharge into the second battery B2 according to one or more embodiments.
  • controlling the first battery B1 to discharge to the second battery B2 in S21 includes:
  • the embodiment provided in this application specifically discloses that when the first battery B1 is controlled to discharge to the second battery B2, the first battery B1 is controlled to discharge to the first energy storage element 202 and the second energy storage element 302 during the first period; the first energy storage element 202 and the second energy storage element 302 are controlled to discharge to the second battery B2 during the second period.
  • the battery self-heating scheme is realized by flexibly adjusting the charging and discharging of the dual-drive motor to improve the heating rate.
  • the first switch module 201 includes a first bridge arm group
  • the second switch module 301 includes a second bridge arm group
  • the first battery B1 is controlled to discharge to the second battery B2, including: in the first period, the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group are controlled to be turned on; in the second period, the lower bridge arm of the second bridge arm group is controlled to be turned off, and the upper bridge arm corresponding to the disconnected bridge arm is turned on.
  • the first switch module 201 includes a first bridge arm group
  • the second switch module 301 includes a second bridge arm group
  • the first battery B1 is controlled to discharge to the second battery B2, including: in the first period, the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group are controlled to be turned on; in the second period, the upper bridge arm that is turned on in the second bridge arm group is controlled to be turned off, and the lower bridge arm corresponding to the disconnected bridge arm is turned on.
  • FIG. 10 is a schematic diagram of steps of controlling the second battery B2 to discharge into the first battery B1 according to one or more embodiments.
  • controlling the second battery B2 to discharge to the first battery B1 in S22 includes:
  • the embodiment provided in this application specifically discloses that when the second battery B2 is controlled to discharge to the first battery B1, the second battery B2 is controlled to discharge to the first energy storage element 202 and the second energy storage element 302 during the first period; the first energy storage element 202 and the second energy storage element 302 are controlled to discharge to the first battery B1 during the second period.
  • the battery self-heating scheme is realized by flexibly adjusting the charging and discharging of the dual-drive motor to improve the heating rate.
  • the first switch module 201 includes a first bridge arm group
  • the second switch module 301 includes a second bridge arm group
  • controlling the second battery to discharge to the first battery includes: in the first period, controlling the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group to be turned on; in the second period, controlling the turned-on lower bridge arm in the first bridge arm group to be turned off, and turning on the upper bridge arm corresponding to the turned-off bridge arm.
  • the first switch module includes a first bridge arm group, and the second switch module includes a second bridge arm group; the second battery is controlled to discharge to the first battery, including a first period, controlling the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group to be turned on; in the second period, the upper bridge arm that is turned on in the first bridge arm group is controlled to be turned off, and the upper bridge arm corresponding to the disconnected bridge arm is turned on.
  • the following specifically takes the dual motor heating topology structure of multi-branch batteries in parallel as an example to further explain the charging and discharging principle of the present application embodiment based on the situation of common negative pole of the battery.
  • the battery system BMS Battery Management System
  • the motor controller MCU Motor control unit
  • the vehicle controller VCU Vehicle control unit determines whether to turn on the pulse heating device to heat the battery based on the heating request sent by the BMS and the motor working status sent by the MCU.
  • the VCU determines that the battery SOC status and the motor operating status meet the heating conditions
  • Different control methods are used for specific dual-motor circuit topology structures, including two dual-motor circuit systems: one is a dual-motor system powered by multiple branch batteries in parallel, and the other is a dual-motor system in which multiple branch batteries independently power the motors.
  • the motor controller or BMS controls k2 to disconnect, and the battery switches from a parallel state to a reverse series state. At this time, the negative poles of the two battery packs are connected and the positive poles are disconnected.
  • Pulse heating can be divided into four stages.
  • the first and second stages control battery B1 to charge battery B2.
  • the third and fourth stages control battery B2 to charge battery B1.
  • Figure 11 is a circuit diagram 1 of a first battery discharging to a second battery in a charging and discharging method according to one or more embodiments.
  • Figure 12 is a circuit diagram 2 of a first battery discharging to a second battery in a charging and discharging method according to one or more embodiments.
  • the upper bridge arm of the first motor controller and the lower bridge arm of the second motor controller are controlled to be closed, the battery B1 is in a discharge state, and the motor inductor is used to store energy and boost the voltage.
  • the battery current flows as follows: B1 positive ⁇ V1, V2, V3 ⁇ LA1, LB1, LC1 ⁇ LA2, LB2, LC2 ⁇ V10, V11, V12 ⁇ B1 negative.
  • the upper bridge arm of the first motor controller and the upper bridge arm of the second motor controller are controlled to close, and the motor equivalent inductance releases the energy stored in the first stage to the battery B2, and the battery B1 is in the discharge state.
  • Battery B1 is in the discharging state, and battery B2 is in the charging state.
  • the battery current flows as follows: B1 positive ⁇ V1, V2, V3 ⁇ LA1, LB1, LC1 ⁇ LA2, LB2, LC2 ⁇ V7, V8, V9 ⁇ B2 negative ⁇ B2 positive ⁇ B1 negative.
  • the time for battery B1 to charge battery B2 can be controlled by controlling the time for the upper and lower bridge arms of the second motor controller to switch back and forth.
  • Figure 13 is a circuit diagram 1 of the second battery discharging to the first battery in the charging and discharging method according to one or more embodiments.
  • Figure 14 is a circuit diagram 2 of the second battery discharging to the first battery in the charging and discharging method according to one or more embodiments.
  • the battery B2 is in a discharging state, and the motor inductor stores energy and boosts the voltage.
  • the battery current flows as follows: B2 positive ⁇ V7, V8, V9 ⁇ LA2, LB2, LC3 ⁇ LA1, LB1, LC1 ⁇ V4, V5, V6 ⁇ B2 negative.
  • the upper bridge arm of the first motor controller and the upper bridge arm V7 of the second motor controller are controlled to be closed, and the motor equivalent inductance releases the energy stored in the third stage to the battery B1, the battery B2 is in a discharging state, and the battery B1 is in a charging state.
  • the battery current flows as follows: B2 positive ⁇ V7, V8, V9 ⁇ LA2, LB2, LC3 ⁇ LA1, LB1, LC1 ⁇ V1, V2, V3 ⁇ B1 positive ⁇ B1 negative ⁇ B2 negative.
  • the time for battery B2 to charge battery B1 can be controlled by controlling the time for the reciprocating switching of the upper bridge arm and the lower bridge arm of the first motor controller.
  • the three-phase current of the motor can be controlled to be of the same phase and amplitude, so that the synthetic magnetic field generated by the motor winding when the current is passed through can be hinged to the rotor side to a minimum, thereby reducing the eddy current loss problem caused by the change of the magnetic field on the rotor.
  • the dual motors can be permanent magnet motors and induction motors to achieve low-temperature pulse heating.
  • the first motor can also pass three-phase current, and the second motor can be one of the three phases for the above self-heating control.
  • the corresponding effect is that the inductance of the second motor changes from the original three-phase inductance in parallel to a single-phase inductance to participate in the heating process, and the inductance involved in energy conversion is increased, so that the rate of change of the heating current is slowed down. Under the same voltage platform and the same control time, the peak value of the heating current on the motor side can be effectively improved.
  • the BMS determines whether the battery pack temperature is abnormal. If so, it sends the temperature rise abnormality information to the vehicle controller. The vehicle controller forwards the temperature rise abnormality information to the MCU, and the motor controller stops working. The battery pack switches to the initial state.
  • the BMS determines whether the battery pack temperature meets the requirements. If so, the vehicle controller forwards the pulse heating information to the motor controller to stop heating, and the battery pack switches to the initial mode. Otherwise, the above heating process is repeated until the heating temperature meets the requirements.
  • the charging and discharging scheme of the embodiment of the present application improves the problem of low heating rate of the original battery, so that the temperature rise rate of the battery pack is significantly improved.
  • the dual motor heating topology structure with multiple branch batteries connected in parallel to power the motors in FIG3 is used as an example to further explain the charging and discharging principle of the present application embodiment based on the case of a common positive electrode of the battery.
  • the battery system BMS Battery Management System
  • the motor controller MCU Motor control unit
  • the vehicle controller VCU Vehicle control unit determines whether to turn on the pulse heating device to heat the battery based on the heating request sent by the BMS and the motor working status sent by the MCU.
  • the VCU determines whether the battery SOC state and the motor working state meet the heating conditions.
  • Different control methods are used for specific dual-motor circuit topologies. Specifically, there are two types of dual-motor circuit systems, one is a dual-motor system with multiple branch batteries connected in parallel to supply power, and the other is a dual-motor system with multiple branch batteries independently supplying power to the motor.
  • the motor controller or BMS controls k2 to disconnect, and the battery switches from the parallel state to the reverse series state. At this time, the negative poles of the two battery packs are connected and the positive poles are disconnected.
  • Pulse heating can be divided into four stages.
  • the first and second stages control battery B1 to charge battery B2.
  • the third and fourth stages control battery B2 to charge battery B1.
  • FIG. 15 is a diagram of a first battery discharging from a second battery in a charge and discharge method according to one or more embodiments.
  • FIG16 is a circuit diagram 2 of the first battery discharging to the second battery in the charging and discharging method according to one or more embodiments.
  • the upper bridge arm of any phase in the second bridge arm group and the lower bridge arm of any phase in the first bridge arm group are controlled to be turned on, the battery B1 is in a discharge state, and the motor inductor is used to store energy and boost the voltage.
  • the battery current flows as follows: B1 positive ⁇ V7, V8, V9 ⁇ LA2, LB2, LC2 ⁇ LA1, LB1, LC1 ⁇ V4, V5, V6 ⁇ B1 negative.
  • the upper bridge arm in the second bridge arm group is controlled to be disconnected, and the lower bridge arm corresponding to the disconnected bridge arm is turned on, and the motor equivalent inductance releases the energy stored in the first stage to battery B2, battery B1 is in a discharging state, and battery B2 is in a charging state.
  • the battery current flows as follows: B1 positive ⁇ B2 positive ⁇ B1 negative ⁇ V10, V11, V12 ⁇ LA2, LB2, LC2 ⁇ LA1, LB1, LC1 ⁇ V4, V5, V6 ⁇ B1 negative.
  • the time for battery B1 to charge battery B2 can be controlled by controlling the time for the upper and lower bridge arms of the second motor controller to switch back and forth.
  • Figure 17 is a circuit diagram 1 of the second battery discharging to the first battery in the charging and discharging method according to one or more embodiments.
  • Figure 18 is a circuit diagram 2 of the second battery discharging to the first battery in the charging and discharging method according to one or more embodiments.
  • the upper bridge arm of any phase in the first bridge arm group and the lower bridge arm of any phase in the second bridge arm group are controlled to be turned on, the battery B2 is in a discharging state, and the motor inductance is used to store energy and boost the voltage.
  • the battery current flows as follows: B2 positive ⁇ V1, V2, V3 ⁇ LA1, LB1, LC1 ⁇ LA2, LB2, LC3 ⁇ V10, V11, V12 ⁇ B2 negative.
  • the upper bridge arm that is turned on in the first bridge arm group is controlled to be disconnected, and the upper bridge arm corresponding to the disconnected bridge arm is turned on.
  • the motor equivalent inductance releases the energy stored in the third stage to battery B1, battery B2 is in a discharging state, and battery B1 is in a charging state.
  • the battery current flows as follows: B2 positive ⁇ B1 positive ⁇ B1 negative ⁇ V4, V5, V6 ⁇ LA1, LB1, LC1 ⁇ LA2, LB2, LC3 ⁇ V10, V11, V12 ⁇ B2 negative.
  • the time for battery B2 to charge battery B1 can be controlled by controlling the time for the upper bridge arm and the lower bridge arm of the first motor controller to switch back and forth.
  • the three-phase current of the motor is of the same phase and amplitude, so that the motor winding can be
  • the synthetic magnetic field generated by the current is hinged to the rotor side to a minimum, thereby reducing the eddy current loss caused by the magnetic field change on the rotor.
  • the dual motors can be permanent magnet motors and induction motors to achieve low-temperature pulse heating.
  • the first motor can also pass three-phase current, and the second motor can be one of the three phases for the above self-heating control.
  • the corresponding effect is that the inductance of the second motor changes from the original three-phase inductance in parallel to a single-phase inductance to participate in the heating process, and the inductance involved in energy conversion is increased, so that the rate of change of the heating current is slowed down. Under the same voltage platform and the same control time, the peak value of the heating current on the motor side can be effectively improved.
  • the BMS determines whether the battery pack temperature is abnormal. If so, it sends the temperature rise abnormality information to the vehicle controller.
  • the vehicle controller forwards the temperature rise abnormality information to the MCU, the motor controller stops working, and the battery pack switches to the initial form.
  • the BMS determines whether the battery pack temperature meets the requirements. If so, the vehicle controller forwards the stop driving pulse heating information to the motor controller, stops heating, and switches the battery pack to the initial mode. Otherwise, the above heating process is repeated until the heating temperature meets the requirements.
  • the charging and discharging scheme of the embodiment of the present application improves the problem of low heating rate of the original battery, so that the temperature rise rate of the battery pack is significantly improved.
  • the present application provides a computing device, comprising: a memory: for storing executable instructions; and a processor: for connecting to the memory to execute the executable instructions to complete the charging and discharging method as any one of the third aspect.
  • two energy storage elements are connected through a first regulating switch module, and heating control is performed after the switch is closed.
  • the charging and discharging circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while reducing costs, the charging and discharging of the dual-drive motor can be flexibly adjusted to perform a battery self-heating scheme to increase the heating rate.
  • the present application provides a computer-readable storage medium having a computer program stored thereon; the computer program is executed by a processor to implement the charging and discharging method as described in any one of the third aspects.
  • the computer-readable storage medium provided in the embodiment of the present application, wherein two energy storage elements are connected via a first regulating switch module, and heating control is performed after the switch is closed, and the charge and discharge circuit between the power battery and the energy storage element can be flexibly adjusted without changing the original motor structure; while being able to reduce costs, Actively adjust the charging and discharging of the dual-drive motor to implement battery self-heating solution and increase the heating rate.
  • FIG19 shows a schematic diagram of the structure of a computing device 400 according to an embodiment of the present application.
  • a computing device 400 includes: a memory 402 for storing executable instructions; and a processor 401 for connecting to the memory 402 to execute the executable instructions to complete the motion vector prediction method.
  • schematic diagram 19 is merely an example of computing device 400 and does not constitute a limitation on computing device 400. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, computing device 400 may also include input and output devices, network access devices, buses, etc.
  • the processor 401 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • a general-purpose processor may be a microprocessor or the processor 401 may also be any conventional processor, etc.
  • the processor 401 is the control center of the computing device 400, and uses various interfaces and lines to connect various parts of the entire computing device 400.
  • the memory 402 can be used to store computer-readable instructions.
  • the processor 401 implements various functions of the computing device 400 by running or executing computer-readable instructions or modules stored in the memory 402, and calling data stored in the memory 402.
  • the memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the computing device 400, etc.
  • the memory 402 may include a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM) or other Non-volatile/volatile memory devices.
  • a hard disk a memory
  • a plug-in hard disk a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM) or other Non-volatile/volatile memory devices.
  • a smart memory card Smart Media Card, SMC
  • the module integrated in the computing device 400 is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also instruct the relevant hardware to complete it through computer-readable instructions.
  • the computer-readable instructions can be stored in a computer-readable storage medium. When the computer-readable instructions are executed by the processor, the steps of the above-mentioned various method embodiments can be implemented.
  • the power module 10 voltage regulation device controls the first regulation switch module to connect the first power battery 101 and the second power battery 102 in series or in parallel; at the same time, the switch module is controlled to regulate the charging and discharging between the power module 10 and the energy storage element 21, thereby realizing flexible adjustment of the charging and discharging of the power module 10 in a variety of scenarios, and flexible adjustment of the self-heating method of the battery.
  • a high-frequency current heating mode is adopted; when the battery temperature or the battery power is higher than the set temperature, a low-frequency current heating mode is adopted.
  • the present application also provides a computer-readable storage medium on which a computer program is stored; the computer program is executed by a processor to implement a power battery charging and discharging method.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation.
  • multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • the coupling or direct connection between the displayed or discussed The direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

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Abstract

本申请实施例提供了一种充放电电路、方法、计算设备及其存储介质，充放电电路中两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，利用双驱动电机与电池之间的充放电回路产生的交变电流实现电池的自加热，本申请可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。

Description

充放电电路、方法、计算设备及其控制装置
相关申请的交叉引用
本申请要求享有于2023年06月12日提交的名称为“充放电电路、方法、计算设备及其控制装置”的中国专利申请202310691523.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池技术领域，特别是涉及一种充放电电路、方法、计算设备及其存储介质。
背景技术
由于充电电池等动力模块具有能量密度高、可循环充电、安全环保等优点，动力模块被广泛应用于新能源汽车、消费电子、储能系统等领域中。随着电池技术的发展和不同汽车以及使用场景的需求，电池自加热性能的要求也越来越多样。
其中，关于双驱电机使用场景下的电池自加热方案，其加热方案单一、成本高，如何在双电机系统下控制实现电池加热时，降低电池加热成本，提高大容量电池加热速率是一项亟待解决的问题。
上述陈述仅用于提供与本申请有关的背景技术信息，而不必然地构成现有技术。
发明内容
本申请实施例提供了一种充放电电路、方法、计算设备及其存储介质，利用双驱动电机与电池之间的充放电回路产生的交变电流实现电池的自加热，本申请可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
具体通过引出电机中性点，通过控制开关闭合连接后进行加热控制，不仅降低了双电机加热改动点，降低了加热成本，还提高了电池加热速率。
第一方面，本申请提供了一种充放电电路，包括动力模块、第一加热模块、第二加热模块和第一调节开关模块；第一加热模块和第二加热模块均连接动力模块；第一加热模块包括第一储能元件；第二加热模块包括第二储能元件；动力模块包括多条电池支路；第一调节开关模块连接于第一储能元件以及第二储能元件之间。
本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
其中，第一加热模块和第二加热模块可以相当于两组驱动电机，通过第一调节开关模块使一组电机中的第一储能元件连接另一组电机中的第二储能元件，在双驱电机场景下，灵活调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；通过调节两组电机中的第一开关模块以及第二开关模块灵活调整动力模块的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求。
在一些实施例中，第一调节开关模块连接于第一储能元件的电机绕组的中性点与第二储能元件的电机绕组的中性点之间。
本申请实施例提供的充放电电路，通过引出电机中性点，然后通过第一调节开关模块闭合连接后进行电路加热控制，不仅降低了双电机加热改动点，降低了加热成本，还提高了电池加热速率；在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，以满足多种场景下的加热需求。
在一些实施例中，动力模块包括相连接的第一电池与第二电池；第一电池连接第一加热模块；第二电池连接第二加热模块。
本申请实施例提供的充放电电路，动力模块包括第一电池与第二电池两条电池支路，在双驱电机场景下，灵活调节两个电池与储能元件之间的充放电回 路实现双电机的电池自加热；通过调节两组电机中的第一开关模块以及第二开关模块灵活调整动力模块的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求。
在一些实施例中，动力模块包括第一电池与第二电池，充放电电路还包括第二调节开关模块；第二调节开关模块连接于第一电池与第二电池之间；第一电池连接第一加热模块；第二电池连接第二加热模块。
本申请实施例提供的充放电电路，动力模块包括第一电池与第二电池两条电池支路，且通过第二调节开关模块连接两个电池，进行电调电池支路连接方式的改变控制，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
在一些实施例中，第二调节开关模块连接于第一电池的正极侧与第二电池的正极侧之间。
本申请实施例提供的充放电电路，动力模块包括的第一电池与第二电池通过第二调节开关模块在正极侧相连接，形成共负极双电机加热拓扑电路，在此基础上通过第二调节开关模块通断控制电池支路的电路回路，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
在一些实施例中，第二调节开关模块连接于第一电池的负极侧与第二电池的负极侧之间。
本申请实施例提供的充放电电路，动力模块包括的第一电池与第二电池通过第二调节开关模块在负极侧相连接，形成共负极双电机加热拓扑电路，在此基础上通过第二调节开关模块通断控制电池支路的电路回路，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一电池的正极侧连接第一开关模块的上桥臂，第二电池的正极侧连接第二开关模块的上桥臂；第一电池的负极侧连接第二电池的负极侧、第一开关模块的下桥臂以及第二开关模块的下桥臂。
本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连 接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一电池的正极侧连接第一开关模块的上桥臂，第二电池的正极侧连接第二开关模块的上桥臂；第一电池的负极侧连接第二电池的负极侧、第一开关模块的下桥臂以及第二开关模块的下桥臂。
本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
第二方面，本申请提供了一种用电设备，包括控制模块及以上任一项的充放电电路；控制模块与第一调节开关模块、第一加热模块包括的第一开关模块以及第二加热模块包括的第二开关模块连接，控制模块用于调节动力模块的电池之间的充放电。
本申请实施例提供的用电设备，通过控制模块以及充放电电路的第一调节开关模块使一组电机中的第一储能元件连接另一组电机中的第二储能元件，在双驱电机场景下实现双电机的电池自加热，通过调节两组电机中的开关模块灵活调整动力模块的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，以满足多种场景下的加热需求。
第三方面，本申请提供了一种充放电方法，应用于第二方面的用电设备，包括：响应于电池加热指令，控制第一调节开关模块导通；调节动力模块的电池之间的充放电。
本申请实施例提供的充放电方法，根据电池加热指令控制第一调节开关模块导通，在双驱电机场景下，不改变电路结构且灵活调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；通过调节两组电机中的第一开关 模块以及第二开关模块灵活调整动力模块的充放电，能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，动力模块包括第一电池和第二电池，充放电电路还包括第二调节开关模块；第二调节开关模块连接于第一电池与第二电池之间；调节动力模块的电池之间的充放电，包括：断开第二调节开关模块；调节第一电池与第二电池之间的充放电。
本申请实施例提供的充放电方法，断开第二调节开关模块后，调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，动力模块包括第一电池和第二电池，调节动力模块的电池之间的充放电，包括：第一时段，控制第一电池向第二电池进行放电；第二时段，控制第二电池向第一电池进行放电。
本申请实施例提供的充放电方法，通过第一时段控制第一电池向第二电池进行放电；第二时段控制第二电池向第一电池进行放电，进而能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，控制第一电池向第二电池进行放电，包括：第一时段，控制第一电池向第一储能元件以及第二储能元件进行放电；第二时段，控制第一储能元件以及第二储能元件向第二电池进行放电。
本申请提供的实施例具体公开控制第一电池向第二电池进行放电时，通过第一时段控制第一电池向第一储能元件以及第二储能元件进行放电；第二时段控制第一储能元件以及第二储能元件向第二电池进行放电，在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。实现了灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一开关模块包括第一桥臂组，第二开关模块包括第二桥臂组；第一电池的正极侧连接第一开关模块的上桥臂，第二电池的正极侧连接第二开关模块的上桥臂；第一电池的负极侧连接第二电池的负极侧、第一开关模块的 下桥臂以及第二开关模块的下桥臂；控制第一电池向第二电池放电，包括：第一时段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段，控制第二桥臂组导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
本申请实施例提供的充放电方法，具体在调节第一电池向第二电池放电时，通过具体控制第一时段控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段控制第二桥臂组导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一开关模块包括第一桥臂组，第二开关模块包括第二桥臂组；第一电池的正极侧连接第二电池的正极侧、第一开关模块的上桥臂以及第二开关模块的上桥臂；第一电池的负极侧连接第一开关模块的下桥臂，第二电池的负极侧连接第二开关模块的下桥臂；控制第一电池向第二电池放电，包括：第一时段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段，控制第二桥臂组中导通的上桥臂断开，并使断开的桥臂对应的下桥臂导通。
本申请实施例提供的充放电方法，具体在调节第一电池向第二电池放电时，通过具体控制第一时段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段，控制第二桥臂组中导通的上桥臂断开，并使断开的桥臂对应的下桥臂导通。在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。
在一些实施例中，控制第二电池向第一电池进行放电，包括：第一时段，控制第二电池向第一储能元件以及第二储能元件进行放电；第二时段，控制第一储能元件以及第二储能元件向第一电池进行放电。
本申请提供的实施例具体公开控制第二电池向第一电池放电时，通过第一时段控制第二电池向第一储能元件以及第二储能元件进行放电；第二时段控制 第一储能元件以及第二储能元件向第一电池进行放电，在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。实现了灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一开关模块包括第一桥臂组，第二开关模块包括第二桥臂组；第一电池的正极侧连接第一开关模块的上桥臂，第二电池的正极侧连接第二开关模块的上桥臂；第一电池的负极侧连接第二电池的负极侧、第一开关模块的下桥臂以及第二开关模块的下桥臂；控制第二电池向第一电池放电，包括：第一时段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段，控制第一桥臂组中导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
本申请实施例提供的充放电方法，具体在调节第二电池向第一电池放电时，通过具体控制第一时段控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段控制第一桥臂组中导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。
在一些实施例中，第一加热模块包括第一开关模块，第二加热模块包括第二开关模块；第一开关模块包括第一桥臂组，第二开关模块包括第二桥臂组；第一电池的正极侧连接第二电池的正极侧、第一开关模块的上桥臂以及第二开关模块的上桥臂；第一电池的负极侧连接第一开关模块的下桥臂，第二电池的负极侧连接第二开关模块的下桥臂；控制第二电池向第一电池放电，包括：第一时段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段，控制第一桥臂组中导通的上桥臂断开，并使断开的桥臂对应的上桥臂导通。
本申请实施例提供的充放电方法，具体在调节第二电池向第一电池放电时，通过具体控制第一时段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段，控制第一桥臂组中导通的上桥臂断开，并使 断开的桥臂对应的上桥臂导通。在动力模块的自加热过程中，通过不同时段不同控制实现持续自加热进行。
第四方面，本申请一种计算设备，包括：存储器：用于存储可执行指令；以及处理器：用于与存储器连接以执行可执行指令从而完成如第三方面任一项的充放电方法。
本申请实施例提供的计算设备，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
第五方面，本申请一种计算机可读存储介质，其上存储有计算机程序；计算机程序被处理器执行以实现如第三方面任一项的充放电方法。
本申请实施例提供的计算机可读存储介质，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1为根据一个或多个实施例的一种充放电电路的模块化示意图。
图2为根据一个或多个实施例的一种充放电电路的电路示意图一。
图3为根据一个或多个实施例的一种充放电电路的电路示意图二。
图4为根据一个或多个实施例的一种充放电电路的电路示意图三。
图5为根据一个或多个实施例的一种充放电电路的电路示意图四。
图6为根据一个或多个实施例的用电设备的结构示意图。
图7为根据一个或多个实施例的一种充放电方法的步骤示意图。
图8为根据一个或多个实施例的调节动力模块的电池之间的充放电的步骤示意图。
图9为根据一个或多个实施例的控制第一电池向第二电池进行放电的步骤示意图。
图10为根据一个或多个实施例的控制第二电池向第一电池进行放电的步骤示意图。
图11为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图一。
图12为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图二。
图13为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图一。
图14为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图二。
图15为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图一。
图16为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图二。
图17为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图一。
图18为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图二。
图19为根据一个或多个实施例的计算设备的结构示意图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施 例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是物理连接，也可以是电连接，或一体地连接；也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
随着电池技术的发展，动力模块的各种性能都在不断提高，尤其电池自加热方面，关于双驱电机使用场景下的电池自加热方案，其加热方案单一、成本高，如何在双电机系统下控制实现电池加热时，降低电池加热成本，提高大容量电池加热速率是一项亟待解决的问题。
另外，关于双驱电机使用场景下的电池自加热方案，双电机控制器的协同控制很重要，在降低电池加热过程中产生的噪声、振动与声振粗糙度NVH(Noise、Vibration、Harshness)及转子发热问题，提高电池的加热速率显得很重要。而这些直接跟客户的使用感受相关联。
鉴于此，本申请实施例提供了一种充放电电路、方法、计算设备及其存储介质，利用双驱动电机与电池之间的充放电回路产生的交变电流实现电池的自加热，本申请可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
具体通过引出电机中性点，通过控制开关闭合连接后进行加热控制，不仅降低了双电机加热改动点，降低了加热成本，还提高了电池加热速率。
具体的，本申请实施例第一加热模块和第二加热模块可以相当于两组驱动电机，通过控制电机的开关模块的不同相桥臂的通断，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。本申请实施例中的动力模块可以包括但不限于锂离子电池、锂金属电池、铅酸电池、镍隔电池、镍氢电池、锂硫电池、锂空气电池或者钠离子电池等。从规模而言，本申请实施例中的电池可以为电芯单体，也可以是电池模组或电池包。从应用场景而言，电池可应用于汽车、轮船等动力装置内。比如，可以应用于动力汽车内，为动力汽车的电机供电，作为电动汽车的动力源。电池还可为电动汽车中的其他用电器件供电，比如为车内空调、车载播放器等供电。
为了便于描述，以下将以动力模块应用于新能源汽车(动力汽车)作为实施例进行阐述。
驱动电机及其控制系统是新能源汽车的核心部件之一，其驱动特性决定了汽车行驶的主要性能指标。新能源汽车的电机驱动系统主要由电动机(即电机)、功率转换器、电机控制器(例如，逆变器)、各种检测传感器以及电源等部分构成。电机是应用电磁感应原理运行的旋转电磁机械，用于实现电能向机械能的转换。运行时从电系统吸收电功率，向机械系统输出机械功率。
可选地，用电装置以及计算设备包括但不限定为车辆、船舶或航天器等。
通常的，电池加热控制策略在电池加热过程中的现有技术中存在电池脉冲加热过程中电池加热速率较低，且转子磁钢温度高与振动噪声大的问题。而这些问题凸显在市场中，降低了客户的使用感受。因此，相比之下，本申请提出一种充放电电路、方法、计算设备及其存储介质，能通过控制开关模块的不同相桥臂的通断，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
原理上，本申请实施例的电池加热方案，一方面可以基于多支路电池并联后进行供电的电池系统，需要改变电池的物理连接使得双支路电池在加热的时候进行反向串联，然后，通过开关元件的通断灵活调节动力电池与储能元件之间的充放电回路，实现脉冲电流在多个电池包之间实现相互流动。
电池反向串联结构即通过电路的连接重组，使一组电池的正极连接另一组电池的正极，或者一组电池的负极连接另一组电池的负极。
原理上，本申请实施例的电池加热方案，另一方面还基于多支路电池独立给电机供电的系统，则无需改变电池间的连接方式。通过将双电机的中性点引出，构成两个电池包的回路连接，并且控制加热过程中，利用单相电流或多相产生同相电流削弱电机在加热的过程中由定子线圈通电产生的合成磁场幅值，从而抑制了原有电机加热方案带来的NVH及转子发热问题。
为了便于描述，本申请实施例的电池加热方案中，动力电池系统的双支路电池包括第一电池和第二电池。
从整体上描述本申请实施例的实施方案如下。
电池系统BMS(Battery Management System)采集电池包温度、电量SOC、电压、电流信号判断电池是否工作正常以及电池是否满足加热的条件；电机控制器MCU(Motor control unit)采集电机电压、电流判断电机是否处于静止状态；整车控制器VCU(Vehicle control unit)根据BMS发送的加热请求以及MCU发送的电机工作状态判断是否开启脉冲加热装置对电池进行加热。
当BMS发送加热请求后，VCU判断电池SOC状态以及电机工作状态满足加热条件；
针对具体的双电机电路拓扑结构，进行不同的控制方式。具体包括两种双电机电路系统，一种是多支路电池并联供电的双电机系统，另一种是多支路电池独立给电机供电的双电机系统。
对于第一种多支路电池并联供电的情况，需要先改变电池包的连接方式，将电池包由并联方式切换为反向串联模式；对于第二种电池包单独给两套电机系统供电的结构拓扑，则不需要对电池连接方式进行改动。
最后，MCU控制第一电机控制器开关模块与第二电机控制器开关模块的通断，实现两组电池间的相互充放点电，电池内部产生热量。
加热同时，BMS判断电池组温度有无异常，若有则发送温升异常信息至整车控制器，整车控制器转发温升异常信息至MCU，电机控制器停止工作，电池包切换为初始形式。
加热同时，BMS判断电池组温度是否达到要求，若达到要求，则整车控制器转发停止行车脉冲加热信息至电机控制器，停止加热，电池包切换为初始模式。否则，重复上面的加热过程直至加热温度达到要求。
本申请实施例的充放电方案改善了原有电池加热速率低的问题，使得电池包温升速率有较为显著的提升。
本申请的一些实施例充放电电路、方法、计算设备及其存储介质通过复用第二套电机驱动系统，以较低的成本实现电池温升速率可调节式的电池自加热技术。
以下从整体上描述描述本申请的充放电电路及其充放电原理，以便更好的理解本申请双驱电机下的充放电方案。
为了使本申请实施例中的技术方案及优点更加清楚明白，以下结合附图对本申请的示例性实施例进行进一步详细的说明，显然，所描述的实施例仅是本申请的一部分实施例，而不是所有实施例的穷举。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
为了便于理解和描述，功能原理上本申请实施例的第一加热模块和第二加热模块可以相当于两组驱动电机，第一储能元件和第二储能元件可以相当于各自的电机绕组，第一开关模块和第二开关模块可以相当于各自的电机控制器。
图1是本申请实施例提供的一种充放电电路的模块化示意图。图2是本申请实施例提供的一种充放电电路100的电路示意图。
如图1所示，本申请提供的充放电电路100，包括动力模块10、第一加热模块20、第二加热模块30和第一调节开关模块；第一加热模块20和第二加热模块30均连接动力模块10；第一加热模块20包括第一储能元件202；第二加 热模块30包括第二储能元件302；动力模块10包括多条电池支路；第一调节开关模块连接于第一储能元件202以及第二储能元件302之间。
基于此，本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
其中，第一加热模块20和第二加热模块30可以相当于两组驱动电机，通过第一调节开关模块使一组电机中的第一储能元件202连接另一组电机中的第二储能元件302，在双驱电机场景下，灵活调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；通过调节两组电机中的第一开关模块201以及第二开关模块301灵活调整动力模块10的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求。
在一些实施例中，第一调节开关模块连接于第一储能元件202的电机绕组的中性点与第二储能元件302的电机绕组的中性点之间。
本申请实施例通过引出电机中性点，然后通过第一调节开关模块闭合连接后进行电路加热控制，不仅降低了双电机加热改动点，降低了加热成本，还提高了电池加热速率；在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，以满足多种场景下的加热需求。
图2为根据一个或多个实施例的一种充放电电路的电路示意图一。图3为根据一个或多个实施例的一种充放电电路的电路示意图二。
如图2和图3属于基于多支路电池独立给电机的动力系统基础上的充放电电路。
动力模块10包括相连接的第一电池B1与第二电池B2；第一电池B1连接第一加热模块20；第二电池B2连接第二加热模块30。
本申请实施例提供的充放电电路，在电机工作中，属于第一电池B1和第二电池B2独立为各自连接的电机进行供电。动力模块10包括第一电池B1与第二电池B2两条电池支路，在双驱电机场景下，可以灵活调节两个电池与储 能元件之间的充放电回路实现双电机的电池自加热；通过调节两组电机中的第一开关模块201以及第二开关模块301灵活调整动力模块10的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求。
图4为根据一个或多个实施例的一种充放电电路的电路示意图三。图5为根据一个或多个实施例的一种充放电电路的电路示意图四。
如图4和图5所示，属于基于多支路电池并联供电的动力系统基础上的充放电电路。
动力模块10包括第一电池B1与第二电池B2，充放电电路还包括第二调节开关模块；第二调节开关模块连接于第一电池B1与第二电池B2之间；第一电池B1连接第一加热模块20；第二电池B2连接第二加热模块30。
本申请实施例提供的充放电电路，动力模块10包括第一电池B1与第二电池B2两条电池支路，且通过第二调节开关模块连接两个电池，进行电调电池支路连接方式的改变控制，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
如图4所示，在一些实施例中，第二调节开关模块连接于第一电池B1的正极侧与第二电池B2的正极侧之间。
本申请实施例提供的充放电电路，动力模块10包括的第一电池B1与第二电池B2通过第二调节开关模块在正极侧相连接，形成共负极双电机加热拓扑电路，在此基础上通过第二调节开关模块通断控制电池支路的电路回路，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
如图5所示，在一些实施例中，第二调节开关模块连接于第一电池B1的负极侧与第二电池B2的负极侧之间。
本申请实施例提供的充放电电路，动力模块10包括的第一电池B1与第二电池B2通过第二调节开关模块在负极侧相连接，形成共正极双电机加热拓扑电路，在此基础上通过第二调节开关模块通断控制电池支路的电路回路，以匹配加热回路中不同充放电需求，提高电机的系统适配性以及提高电池加热速率。
在动力模块10连接双电机方面，可以实施的，如图2和图4所示，基于电 池共负极双电机加热拓扑结构。第一电池B1的正极侧连接第一开关模块201的上桥臂，第二电池B2的正极侧连接第二开关模块301的上桥臂；第一电池B1的负极侧连接第二电池B2的负极侧、第一开关模块201的下桥臂以及第二开关模块301的下桥臂。
本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在动力模块10连接双电机方面，可以实施的，如图3和图5所示，基于电池共正极双电机加热拓扑结构。第一电池B1的正极侧连接第一开关模块201的上桥臂，第二电池B2的正极侧连接第二开关模块301的上桥臂；第一电池B1的负极侧连接第二电池B2的负极侧、第一开关模块201的下桥臂以及第二开关模块301的下桥臂。
本申请实施例提供的充放电电路，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在电路中，还包括了逆变器的三个桥臂组以及电机中性连接线，电机包括三相绕组，是电动汽车原本的部件。
上文对各个实施例的描述倾向于强调各个实施例之间的不同之处，其相同或相似之处可以相互参考，为了简洁，本文不再赘述。
图6为根据一个或多个实施例的用电设备的结构示意图。
如图6所示，包括控制模块40及以上任一实施例中的充放电电路100；控制模块40与第一调节开关模块、第一加热模块20包括的第一开关模块201以及第二加热模块30包括的第二开关模块301连接，控制模块用于调节动力模块10的电池之间的充放电。
本申请实施例提供的用电设备，通过控制模块以及充放电电路的第一调节 开关模块使一组电机中的第一储能元件202连接另一组电机中的第二储能元件302，在双驱电机场景下实现双电机的电池自加热，通过调节两组电机中的开关模块灵活调整动力模块10的充放电，进而灵活调整动力电池的自加热方法匹配多种场景的加热需求；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，以满足多种场景下的加热需求。
图7为根据一个或多个实施例的一种充放电方法的步骤示意图。
如图7所示，本申请提供了一种充放电方法，应用于用电设备200，包括：
S1：响应于电池加热指令，控制第一调节开关模块导通；
S2：调节动力模块10的电池之间的充放电。
本申请实施例提供的充放电方法，根据电池加热指令控制第一调节开关模块导通，在双驱电机场景下，不改变电路结构且灵活调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；通过调节两组电机中的第一开关模块201以及第二开关模块301灵活调整动力模块10的充放电，能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
在一些实施例中，S2中调节动力模块10的电池之间的充放电，包括：断开第二调节开关模块；调节第一电池B1与第二电池B2之间的充放电。
本申请实施例提供的充放电方法，断开第二调节开关模块后，调节动力电池与储能元件之间的充放电回路实现双电机的电池自加热；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
图8为根据一个或多个实施例的调节动力模块10的电池之间的充放电的步骤示意图。
如图8所示，在一些实施例中，动力模块10包括第一电池B1和第二电池B2，S2中调节动力模块10的电池之间的充放电，包括：
S21：第一时段，控制第一电池B1向第二电池B2进行放电。
S22：第二时段，控制第二电池B2向第一电池B1进行放电；其中，持续交替进行第一时段以及第二时段的控制。
本申请实施例提供的充放电方法，通过第一时段控制第一电池B1向第二 电池B2进行放电；第二时段控制第二电池B2向第一电池B1进行放电，进而能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
图9为根据一个或多个实施例的控制第一电池B1向第二电池B2进行放电的步骤示意图。
如图9所示，在一些实施例中，具体的，S21中控制第一电池B1向第二电池B2进行放电，包括：
S211：第一时段，控制第一电池B1向第一储能元件202以及第二储能元件302进行放电；
S212：第二时段，控制第一储能元件202以及第二储能元件302向第二电池B2进行放电。
本申请提供的实施例具体公开控制第一电池B1向第二电池B2进行放电时，通过第一时段控制第一电池B1向第一储能元件202以及第二储能元件302进行放电；第二时段控制第一储能元件202以及第二储能元件302向第二电池B2进行放电，在动力模块10的自加热过程中，通过不同时段不同控制实现持续自加热进行。实现了灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
应用于拓扑电路上，如图2和图4所示，基于电池共负极双电机加热拓扑结构。第一开关模块201包括第一桥臂组，第二开关模块301包括第二桥臂组；控制第一电池B1向第二电池B2放电，包括：第一时段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段，控制第二桥臂组导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
应用于拓扑电路上，如图3和图5所示，基于电池共正极双电机加热拓扑结构。第一开关模块201包括第一桥臂组，第二开关模块301包括第二桥臂组；控制第一电池B1向第二电池B2放电，包括：第一时段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段，控制第二桥臂组中导通的上桥臂断开，并使断开的桥臂对应的下桥臂导通。
图10为根据一个或多个实施例的控制第二电池B2向第一电池B1进行放电的步骤示意图。
如图10所示，在一些实施例中，S22中控制第二电池B2向第一电池B1进行放电，包括：
S221：第一时段，控制第二电池B2向第一储能元件202以及第二储能元件302进行放电。
S222：第二时段，控制第一储能元件202以及第二储能元件302向第一电池B1进行放电。
本申请提供的实施例具体公开控制第二电池B2向第一电池B1放电时，通过第一时段控制第二电池B2向第一储能元件202以及第二储能元件302进行放电；第二时段控制第一储能元件202以及第二储能元件302向第一电池B1进行放电，在动力模块10的自加热过程中，通过不同时段不同控制实现持续自加热进行。实现了灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
应用于拓扑电路上，如图2和图4所示，基于电池共负极双电机加热拓扑结构。第一开关模块201包括第一桥臂组，第二开关模块301包括第二桥臂组；控制第二电池向第一电池放电，包括：第一时段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通；第二时段，控制第一桥臂组中导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
应用于拓扑电路上，如图3和图5所示，基于电池共正极双电机加热拓扑结构。第一开关模块包括第一桥臂组，第二开关模块包括第二桥臂组；控制第二电池向第一电池放电，包括第一时段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通；第二时段，控制第一桥臂组中导通的上桥臂断开，并使断开的桥臂对应的上桥臂导通。
以下具体以图2的多支路电池并联供电的双电机加热拓扑结构为例，对基于电池共负极的情况进行本申请实施例充放电原理的进一步阐释说明。图4的多支路电池独立给电机供电的双电机加热原理参照图2。
电池系统BMS(Battery Management System)采集电池包温度、电量SOC、电压、电流信号判断电池是否工作正常以及电池是否满足加热的条件；电机控制器MCU(Motor control unit)采集电机电压、电流判断电机是否处于静止状态；整车控制器VCU(Vehicle control unit)根据BMS发送的加热请求以及MCU发送的电机工作状态判断是否开启脉冲加热装置对电池进行加热。
当BMS发送加热请求后，VCU判断电池SOC状态以及电机工作状态满足加热条件；
针对具体的双电机电路拓扑结构，进行不同的控制方式。具体包括两种双电机电路系统，一种是多支路电池并联供电的双电机系统，另一种是多支路电池独立给电机供电的双电机系统。
对于第一种如图2所示的多支路电池并联供电的情况，需要先改变电池包的连接方式，将电池包由并联方式切换为反向串联模式；对于第二种如图4所示的电池包单独给两套电机系统供电的结构拓扑，则不需要对电池连接方式进行改动。
如图2所示，电机控制器或BMS控制k2断开，电池由并联状态切换为电池反串联状态，此时两组电池包负极相连，正极断开。
脉冲加热可分为四个阶段。第一阶段和第二阶段控制电池B1向电池B2充电。第三阶段和第四阶段控制电池B2向电池B1充电。
图11为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图一。图12为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图二。
如图11所示，第一阶段，控制第一电机控制器上桥臂与第二电机控制器下桥臂闭合，电池B1处于放电状态，电机电感进行储能升压。此时电池电流流向为：B1正→V1、V2、V3→LA1、LB1、LC1→LA2、LB2、LC2→V10、V11、V12→B1负。
如图12所示，第二阶段，控制第一电机控制器上桥臂与第二电机控制上桥臂闭合，电机等效电感将第一阶段存储的能量释放至电池B2，电池B1处于放 电状态，电池B2处于充电状态。此时电池电流流向为：B1正→V1、V2、V3→LA1、LB1、LC1→LA2、LB2、LC2→V7、V8、V9→B2负→B2正→B1负。同时为了维持电池B1放电、电池B2充电的状态，可通过控制第二电机控制器的上下桥臂往复切换的时间，来控制电池B1向电池B2充电的时间。
图13为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图一。图14为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的电路示意图二。
如图13所示，第三阶段，控制第一电机控制器下桥臂第二电机控制上桥臂闭合，电池B2处于放电状态，电机电感进行储能升压，此时电池电流流向为：B2正→V7、V8、V9→LA2、LB2、LC3→LA1、LB1、LC1→V4、V5、V6→B2负。
如图14所示，第四阶段，控制第一电机控制器上桥臂与第二电机控制器上桥臂V7闭合，电机等效电感将第三阶段存储的能量释放至电池B1，电池B2处于放电状态，电池B1处于充电状态。此时电池电流流向为：B2正→V7、V8、V9→LA2、LB2、LC3→LA1、LB1、LC1→V1、V2、V3→B1正→B1负→B2负。与第二阶段类似，可通过控制第一电机控制器上桥臂与下桥臂往复切换的时间，控制电池B2向电池B1充电的时间。
可选的以控制电机的三相电流为同相位、同幅值的，这样能使电机绕组在通电流产生的合成磁场铰链到转子侧最小，以此降低转子上因磁场变化产生的涡流损耗的问题。
其中双电机可以是永磁电机和感应电机，实现低温脉冲加热，还可以以第一电机通三相电流，第二电机为三相中的一相进行上述自加热控制。其相应取得的效果是，第二电机电感量由原先的三相电感并联变为单相电感参与加热过程，参与能量转换的电感量有所提升，从而加热电流的变化率有所变缓，在相同电压平台，相同控制时间内，电机侧加热电流的尖峰值能够得到有效改善。
最后，加热同时，BMS判断电池组温度有无异常，若有则发送温升异常信息至整车控制器，整车控制器转发温升异常信息至MCU，电机控制器停止工作， 电池包切换为初始形式。
加热同时，BMS判断电池组温度是否达到要求，若达到要求，则整车控制器转发停止行车脉冲加热信息至电机控制器，停止加热，电池包切换为初始模式。否则，重复上面的加热过程直至加热温度达到要求。本申请实施例的充放电方案改善了原有电池加热速率低的问题，使得电池包温升速率有较为显著的提升。
接下来，具体以图3的多支路电池并联供电的双电机加热拓扑结构为例，对基于电池共正极的情况进行本申请实施例充放电原理的进一步阐释说明。图5的多支路电池独立给电机供电的双电机加热原理参照图3。
电池系统BMS(Battery Management System)采集电池包温度、电量SOC、电压、电流信号判断电池是否工作正常以及电池是否满足加热的条件；电机控制器MCU(Motor control unit)采集电机电压、电流判断电机是否处于静止状态；整车控制器VCU(Vehicle control unit)根据BMS发送的加热请求以及MCU发送的电机工作状态判断是否开启脉冲加热装置对电池进行加热。
当BMS发送加热请求后，VCU判断电池SOC状态以及电机工作状态满足加热条件。针对具体的双电机电路拓扑结构，进行不同的控制方式。具体包括两种双电机电路系统，一种是多支路电池并联供电的双电机系统，另一种是多支路电池独立给电机供电的双电机系统。
对于第一种如图3所示的多支路电池并联供电的情况，需要先改变电池包的连接方式，将电池包由并联方式切换为反向串联模式；对于第二种如图5所示的电池包单独给两套电机系统供电的结构拓扑，则不需要对电池连接方式进行改动。
如图3所示，电机控制器或BMS控制k2断开，电池由并联状态切换为电池反串联状态，此时两组电池包负极相连，正极断开。
脉冲加热可分为四个阶段。第一阶段和第二阶段控制电池B1向电池B2充电。第三阶段和第四阶段控制电池B2向电池B1充电。
图15为根据一个或多个实施例的充放电方法中第一电池向第二电池放电 的的电路示意图一。图16为根据一个或多个实施例的充放电方法中第一电池向第二电池放电的的电路示意图二。
如图15所示，第一阶段，控制第二桥臂组中任意相的上桥臂以及第一桥臂组中任意相的下桥臂导通，电池B1处于放电状态，电机电感进行储能升压。此时电池电流流向为：B1正→V7、V8、V9→LA2、LB2、LC2→LA1、LB1、LC1→V4、V5、V6→B1负。
如图16所示，第二阶段，控制第二桥臂组中导通的上桥臂断开，并使断开的桥臂对应的下桥臂导通，电机等效电感将第一阶段存储的能量释放至电池B2，电池B1处于放电状态，电池B2处于充电状态。此时电池电流流向为：B1正→B2正→B1负→V10、V11、V12→LA2、LB2、LC2→LA1、LB1、LC1→V4、V5、V6→B1负。同时为了维持电池B1放电、电池B2充电的状态，可通过控制第二电机控制器的上下桥臂往复切换的时间，来控制电池B1向电池B2充电的时间。
图17为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的的电路示意图一。图18为根据一个或多个实施例的充放电方法中第二电池向第一电池放电的电路示意图二。
如图17所示，第三阶段，控制第一桥臂组中任意相的上桥臂以及第二桥臂组中任意相的下桥臂导通，电池B2处于放电状态，电机电感进行储能升压，此时电池电流流向为：B2正→V1、V2、V3→LA1、LB1、LC1→LA2、LB2、LC3→V10、V11、V12→B2负。
如图18所示，第四阶段，控制第一桥臂组中导通的上桥臂断开，并使断开的桥臂对应的上桥臂导通，电机等效电感将第三阶段存储的能量释放至电池B1，电池B2处于放电状态，电池B1处于充电状态。此时电池电流流向为：B2正→B1正→B1负→V4、V5、V6→LA1、LB1、LC1→LA2、LB2、LC3→V10、V11、V12→B2负。与第二阶段类似，可通过控制第一电机控制器上桥臂与下桥臂往复切换的时间，控制电池B2向电池B1充电的时间。
可选的以控制电机的三相电流为同相位、同幅值的，这样能使电机绕组在 通电流产生的合成磁场铰链到转子侧最小，以此降低转子上因磁场变化产生的涡流损耗的问题。
其中双电机可以是永磁电机和感应电机，实现低温脉冲加热，还可以以第一电机通三相电流，第二电机为三相中的一相进行上述自加热控制。其相应取得的效果是，第二电机电感量由原先的三相电感并联变为单相电感参与加热过程，参与能量转换的电感量有所提升，从而加热电流的变化率有所变缓，在相同电压平台，相同控制时间内，电机侧加热电流的尖峰值能够得到有效改善。
最后，加热同时，BMS判断电池组温度有无异常，若有则发送温升异常信息至整车控制器，整车控制器转发温升异常信息至MCU，电机控制器停止工作，电池包切换为初始形式。
加热同时，BMS判断电池组温度是否达到要求，若达到要求，则整车控制器转发停止行车脉冲加热信息至电机控制器，停止加热，电池包切换为初始模式。否则，重复上面的加热过程直至加热温度达到要求。
本申请实施例的充放电方案改善了原有电池加热速率低的问题，使得电池包温升速率有较为显著的提升。
第四方面，本申请一种计算设备，包括：存储器：用于存储可执行指令；以及处理器：用于与存储器连接以执行可执行指令从而完成如第三方面任一项的充放电方法。
本申请实施例提供的计算设备，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
第五方面，本申请一种计算机可读存储介质，其上存储有计算机程序；计算机程序被处理器执行以实现如第三方面任一项的充放电方法。
本申请实施例提供的计算机可读存储介质，两个储能元件通过第一调节开关模块连接，开关闭合后进行加热控制，可以在不改变原电机结构的情况下，灵活调节动力电池与储能元件之间的充放电回路；能够在降低成本的同时，灵 活调整双驱电机的充放电进行电池自加热方案，提高加热速率。
上文对各个实施例的描述倾向于强调各个实施例之间的不同之处，其相同或相似之处可以相互参考，为了简洁，本文不再赘述。
图19中示出了根据本申请实施例的计算设备400的结构示意图。
如图19所示，计算设备400，包括：存储器402：用于存储可执行指令；以及处理器401：用于与存储器402连接以执行可执行指令从而完成运动矢量预测方法。
本领域技术人员可以理解，示意图19仅仅是计算设备400的示例，并不构成对计算设备400的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件，例如计算设备400还可以包括输入输出设备、网络接入设备、总线等。
所称处理器401(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器401也可以是任何常规的处理器等，处理器401是计算设备400的控制中心，利用各种接口和线路连接整个计算设备400的各个部分。
存储器402可用于存储计算机可读指令，处理器401通过运行或执行存储在存储器402内的计算机可读指令或模块，以及调用存储在存储器402内的数据，实现计算设备400的各种功能。存储器402可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据计算设备400使用所创建的数据等。此外，存储器402可以包括硬盘、内存、插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(Secure Digital，SD)卡，闪存卡(Flash Card)、至少一个磁盘存储器件、闪存器件、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)或其他 非易失性/易失性存储器件。
计算设备400集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实现上述实施例方法中的全部或部分流程，也可以通过计算机可读指令来指令相关的硬件来完成，的计算机可读指令可存储于一计算机可读存储介质中，该计算机可读指令在被处理器执行时，可实现上述各个方法实施例的步骤。
本申请实施例提供的动力模块10电压调节设备，通过控制第一调节开关模块使第一动力电池101和第二动力电池102串联或者并联；同时控制开关模块调节动力模块10与储能元件21之间的充放电，进而实现在多种场景下灵活调整动力模块10的充放电，灵活调整电池的自加热方法，当电池温度或者电池电量小于设定温度时，采用高频电流加热模式；当电池温度或者电池电量大于设定温度时，采用低频电流加热模式。
最后，本申请还提供了一种计算机可读存储介质，其上存储有计算机程序；计算机程序被处理器执行以实现动力电池充放电方法。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直 接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (20)

  1. 一种充放电电路，其中，包括动力模块、第一加热模块、第二加热模块和第一调节开关模块；所述第一加热模块和第二加热模块均连接所述动力模块；
    所述第一加热模块包括第一储能元件；所述第二加热模块包括第二储能元件；
    所述动力模块包括多条电池支路；
    所述第一调节开关模块连接于所述第一储能元件以及所述第二储能元件之间。
  2. 根据权利要求1所述的充放电电路，其中，所述第一调节开关模块连接于所述第一储能元件的电机绕组的中性点与所述第二储能元件的电机绕组的中性点之间。
  3. 根据权利要求1或2所述的充放电电路，其中，所述动力模块包括相连接的第一电池与第二电池；所述第一电池连接所述第一加热模块；所述第二电池连接所述第二加热模块。
  4. 根据权利要求1-3任一项所述的充放电电路，其中，所述动力模块包括第一电池与第二电池，所述充放电电路包括第二调节开关模块；所述第二调节开关模块连接于所述第一电池与所述第二电池之间；所述第一电池连接所述第一加热模块；所述第二电池连接所述第二加热模块。
  5. 根据权利要求4所述的充放电电路，其中，所述第二调节开关模块连接于所述第一电池的正极侧与所述第二电池的正极侧之间。
  6. 根据权利要求4所述的充放电电路，其中，所述第二调节开关模块连接于所述第一电池的负极侧与所述第二电池的负极侧之间。
  7. 根据权利要求1-5中任一项所述的充放电电路，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；
    所述第一电池的正极侧连接所述第一开关模块的上桥臂，所述第二电池的正极侧连接所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第二电池的负极侧、所述第一开关模块的下桥臂以及所述第二开关模块的下桥臂。
  8. 根据权利要求1-4、6中任一项所述的充放电电路，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；
    所述第一电池的正极侧连接所述第二电池的正极侧、所述第一开关模块的上桥臂以及所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第一开关模块的下桥臂，所述第二电池的负极侧连接所述第二开关模块的下桥臂。
  9. 一种用电设备，其中，包括控制模块及如权利要求1-8任一项所述的充放电电路；
    所述控制模块与所述第一调节开关模块、所述第一加热模块包括的第一开关模块以及所述第二加热模块包括的第二开关模块连接，所述控制模块用于调节所述动力模块的电池之间的充放电。
  10. 一种充放电控制方法，其中，应用于权利要求9所述的用电设备，包括：
    满足加热条件的情况下，控制所述第一调节开关模块导通；
    调节所述动力模块的电池之间的充放电。
  11. 根据权利要求10所述的方法，其中，所述动力模块包括第一电池和第二电池，所述充放电电路还包括第二调节开关模块；所述第二调节开关模块连接于所述第一电池与所述第二电池之间；所述调节所述动力模块的电池之间的充放电，包括：
    断开所述第二调节开关模块；
    调节所述第一电池与所述第二电池之间的充放电。
  12. 根据权利要求10或11所述的方法，其中，所述动力模块包括第一电池和第二电池，所述调节所述动力模块的电池之间的充放电，包括：
    第一时段，控制所述第一电池向所述第二电池进行放电；
    第二时段，控制所述第二电池向所述第一电池进行放电；
    其中，持续交替进行所述第一时段以及第二时段的控制。
  13. 根据权利要求12所述的方法，其中，所述控制所述第一电池向所述第二电池进行放电，包括：
    控制所述第一电池向所述第一储能元件以及所述第二储能元件进行放电；
    控制所述第一储能元件以及所述第二储能元件向所述第二电池进行放电。
  14. 根据权利要求12或13所述的方法，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；所述第一开关模块包括第一桥臂组，所述第二开关模块包括第二桥臂组；所述第一电池的正极侧连接所述第一开关模块的上桥臂，所述第二电池的正极侧连接所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第二电池的负极侧、所述第一开关模块的下桥臂以及所述第二开关模块的下桥臂；
    所述控制所述第一电池向所述第二电池放电，包括：
    控制所述第一桥臂组中任意相的上桥臂以及所述第二桥臂组中任意相的下桥臂导通；
    控制所述第二桥臂组导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
  15. 根据权利要求12或13所述的方法，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；所述第一开关模块包括第一桥臂组，所述第二开关模块包括第二桥臂组；所述第一电池的正极侧连接所述第二电池的正极侧、所述第一开关模块的上桥臂以及所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第一开关模块的下桥臂，所述第二电池的负极侧连接所述第二开关模块的下桥臂；
    所述控制所述第一电池向所述第二电池放电，包括：
    控制所述第二桥臂组中任意相的上桥臂以及所述第一桥臂组中任意相的下桥臂导通；
    控制所述第二桥臂组中导通的上桥臂断开，并使断开的桥臂对应的下桥臂导通。
  16. 根据权利要求12-15任一项所述的方法，其中，所述控制所述第二电池向所述第一电池进行放电，包括：
    控制所述第二电池向所述第一储能元件以及所述第二储能元件进行放电；
    控制所述第一储能元件以及所述第二储能元件向所述第一电池进行放电。
  17. 根据权利要求12-16任一项所述的方法，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；所述第一开关模块包括第一桥臂组，所述第二开关模块包括第二桥臂组；所述第一电池的正极侧连接所述第一开关模块的上桥臂，所述第二电池的正极侧连接所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第二电池的负极侧、所述第一开关模块的下桥臂以及所述第二开关模块的下桥臂；
    所述控制所述第二电池向所述第一电池放电，包括：
    控制所述第二桥臂组中任意相的上桥臂以及所述第一桥臂组中任意相的下桥臂导通；
    控制所述第一桥臂组中导通的下桥臂断开，并使断开的桥臂对应的上桥臂导通。
  18. 根据权利要求12-16任一项所述的方法，其中，所述第一加热模块包括第一开关模块，所述第二加热模块包括第二开关模块；所述第一开关模块包括第一桥臂组，所述第二开关模块包括第二桥臂组；所述第一电池的正极侧连接所述第二电池的正极侧、所述第一开关模块的上桥臂以及所述第二开关模块的上桥臂；所述第一电池的负极侧连接所述第一开关模块的下桥臂，所述第二电池的负极侧连接所述第二开关模块的下桥臂；
    所述控制所述第二电池向所述第一电池放电，包括：
    控制所述第一桥臂组中任意相的上桥臂以及所述第二桥臂组中任意相的下桥臂导通；
    控制所述第一桥臂组中导通的上桥臂断开，并使断开的桥臂对应的上桥臂导通。
  19. 一种计算设备，其中，包括：
    存储器：用于存储可执行指令；以及
    处理器：用于与存储器连接以执行可执行指令从而完成如权利要求10-18任一项所述的充放电方法。
  20. 一种计算机可读存储介质，其中，其上存储有计算机程序；所述计算机程序被处理器执行以实现如权利要求10-18任一项所述的方法。
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