CN116455037A - Management control device of hybrid battery, vehicle-mounted power supply management system and method - Google Patents

Management control device of hybrid battery, vehicle-mounted power supply management system and method Download PDF

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Publication number
CN116455037A
CN116455037A CN202310718524.3A CN202310718524A CN116455037A CN 116455037 A CN116455037 A CN 116455037A CN 202310718524 A CN202310718524 A CN 202310718524A CN 116455037 A CN116455037 A CN 116455037A
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battery
unit
battery pack
microcontroller
sensor data
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CN116455037B (en
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禹成海
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Suzhou Mewyeah Technology Co ltd
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Suzhou Mewyeah Technology Co ltd
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    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
    • 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
    • H01M10/613—Cooling or keeping cold
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00309—Overheat or overtemperature protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/005—Detection of state of health [SOH]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a management control device of a hybrid battery, a vehicle-mounted power supply management system and a method, wherein the management control device comprises a battery pack formed by connecting more than one battery unit in parallel; the battery cell of the battery pack is a mixed battery cell of a lead-acid battery cell and a lithium battery cell; when the battery pack is detected to update the battery unit, the newly replaced battery unit sends specification information of the battery unit to the microcontroller; and the microcontroller analyzes the specification information, evaluates the health condition of the battery unit based on the analysis result, controls the charging and discharging processes of the battery pack according to the evaluation result and updates the specification information of the corresponding battery unit. The scheme is applied to the field of hybrid control of lead-acid batteries and lithium batteries, utilizes the characteristics of different batteries, considers the use loss of the batteries, greatly improves the management efficiency of the vehicle-mounted batteries, and greatly prolongs the service life of the batteries.

Description

Management control device of hybrid battery, vehicle-mounted power supply management system and method
Technical Field
The invention relates to the field of vehicle-mounted power supplies, in particular to a management control device of a vehicle-mounted power supply.
Background
At present, the types of batteries of a vehicle-mounted power supply are various, and lead-acid batteries are mainly used, and along with the development of technology, the hybrid application technology of lithium batteries and lead-acid batteries is also started to be applied to automobile batteries, for example, patent 201810969324.4, which synchronously applies the lithium batteries and the lead-acid batteries to new energy vehicles, and controls the charge and discharge of the two batteries according to different characteristics of the lithium batteries and the lead-acid batteries. However, the capacity of a battery may vary with various factors including the temperature of use of the battery, the number of charge and discharge, the power used, etc., and as one or more batteries age, their capacity drops below a desired performance level. If the battery is used in a controlled manner in a factory specification, the battery cannot be used effectively, and the battery life is seriously shortened or an accident is caused by improper use.
Currently, a periodic inspection scheme for battery monitoring status is largely applied to Uninterruptible Power Supplies (UPS), such as patent 201910592817.5, but the above-mentioned technology of updating battery status does not appear in the field of management of vehicle-mounted power supplies.
Disclosure of Invention
The invention mainly provides a management control device of a hybrid battery, a vehicle-mounted power supply management system and a vehicle-mounted power supply management method, so as to solve the problems in the background technology.
In one aspect, the application provides a management control device of a hybrid battery, which comprises a microcontroller, a charging control unit, a discharging control unit, a heating unit, a cooling unit and a battery pack, wherein the battery pack is formed by connecting more than one battery units in parallel;
the battery unit consists of a battery core, a battery management unit, a memory and a plurality of sensor units, wherein the memory is used for storing specification information of the battery unit; the battery core of at least one battery unit in the battery pack is a lead-acid battery core; the battery core of at least one battery unit in the battery pack is a lithium battery core;
when the battery pack is detected to update the battery unit, the newly replaced battery unit sends specification information of the battery unit to the microcontroller; the microcontroller analyzes the specification information, evaluates the health condition of the battery unit based on the analysis result, controls the charging and discharging processes of the battery pack according to the evaluation result, updates the specification information of the corresponding battery unit, and writes the specification information back to the memory of the corresponding battery unit;
the charging control unit is used for controlling the charging flow of the battery pack, and the discharging control unit is used for controlling the discharging flow of the battery pack.
The present invention may be further configured in a preferred example to: the specification information comprises temperature information, time information, discharge depth, rate and charge and discharge times; the plurality of sensor units include a temperature sensor, a voltage sensor, and a current sensor.
The present invention may be further configured in a preferred example to: the evaluation of the health condition of the battery unit based on the analysis result comprises:
the microcontroller unit controls the heating unit and/or the cooling unit to work according to the analysis result;
detecting sensor data of the battery cell by a sensor unit of the newly replaced battery cell; the battery management unit of the newly replaced battery unit collects the sensor data and sends the sensor data to the microcontroller;
and the microcontroller evaluates the health condition of the battery according to the sensor data and the analysis result.
The present invention may be further configured in a preferred example to: the control of the charging and discharging flow of the battery pack according to the evaluation result comprises the following steps:
sensing units of all battery units in the battery pack detect sensor data of corresponding battery cells;
the battery management unit of each battery unit in the battery pack collects the sensor data and sends the sensor data to the microcontroller;
and the microcontroller controls the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit.
The present invention may be further configured in a preferred example to: the system also comprises an ambient temperature sensor for detecting the ambient temperature;
the controlling the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit comprises the following steps:
when the microcontroller detects that the ambient temperature is lower than 0 ℃, the battery cells corresponding to the lead-acid cells in the battery pack are controlled to be charged and discharged preferentially according to the health conditions of the battery cells and the sensor data corresponding to the battery cells.
The present invention may be further configured in a preferred example to: and the microcontroller evaluates the health condition of each battery unit in the battery pack when the timer exceeds a threshold value, updates the specification information of the corresponding battery unit according to an evaluation result, and writes the specification information back to the memory of the corresponding battery unit.
The application also provides a vehicle-mounted power supply management system which comprises the management control device.
In another aspect, the present application further provides a vehicle power management method, including:
s1: when the battery pack is detected to update the battery units, specification information of new battery units is acquired, the battery pack is formed by connecting more than one battery unit in parallel, the battery core of at least one battery unit in the battery pack is a lead-acid battery core, and the battery core of at least one battery unit in the battery pack is a lithium battery core;
s2: the microcontroller analyzes the specification information, and evaluates the health condition of the battery unit based on the analysis result;
s3: and the microcontroller controls the charging and discharging processes of the battery pack according to the evaluation result and updates the specification information of the corresponding battery unit.
The evaluation of the health condition of the battery unit based on the analysis result comprises:
s21: the microcontroller controls the heating unit and/or the cooling unit to work according to the analysis result;
s22: the sensor unit of the new battery unit detects sensor data of the battery cell; the battery management unit of the new battery unit collects the sensor data and sends the sensor data to the microcontroller;
s23: and evaluating the health condition of the battery according to the sensor data and the analysis result.
The control of the charging and discharging flow of the battery pack according to the evaluation result comprises the following steps:
s31: sensing units of all battery units in the battery pack detect sensor data of corresponding battery cells;
s32: the battery management unit of each battery unit in the battery pack collects the sensor data and sends the sensor data to the microcontroller;
s33: and the microcontroller controls the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit.
Compared with the prior art, the invention can update the specification parameters of the battery in time, fully utilize the different characteristics of the lead-acid battery and the lithium battery, and also consider the historical use state of the battery, thereby greatly improving the use efficiency and the service life of the battery.
Drawings
Fig. 1 is a block diagram of a management control device of a hybrid battery in an embodiment of the present invention;
FIG. 2 is a block diagram of a battery cell 202 in an embodiment of the invention;
fig. 3 is a flowchart of a management control method of a hybrid battery in an embodiment of the present invention;
FIG. 4 is a flowchart of a method for evaluating the health of the battery cell based on the analysis result in an embodiment of the invention;
fig. 5 is a flowchart of a method for controlling the charge and discharge processes of the battery pack according to the evaluation result in the embodiment of the present invention.
Detailed Description
The invention provides a management control device of a hybrid battery, as shown in fig. 1, the device comprises a microcontroller MCU101, a battery pack 102, a heating unit 103, a cooling unit 104, a charging control unit 105, a discharging control unit 106 and an environment temperature sensor 107, wherein the MCU is connected with the charging control unit 105 and the discharging control unit 106 and is used for controlling the charging and discharging flow of the battery pack 103; meanwhile, the MCU101 is also connected to the heating unit 103 and the cooling unit 104, and controls the heating unit 103 and the cooling unit 104 to perform a heating or cooling operation for the battery pack.
The battery pack 102 is composed of a plurality of battery cells 202, and the battery cells 202 are shown in fig. 2 and comprise a battery cell 2021, a sensor unit 2022, a hub 2023 and a memory 2024, wherein the battery cell can be a lithium battery cell or a lead-acid battery cell, but the battery cell combination of the lithium battery cell and the lead-acid battery cell is included in the whole battery pack; the sensor unit 2022 may be plural, and the types of the sensor unit 2022 include a temperature sensor, a voltage sensor, a current sensor, and the like for detecting a battery cell state, and the hub 2023 is used for integrating sensor data of the sensor unit and transmitting the sensor data to the MCU201; the memory 2023 may be a nonvolatile memory such as EPROM or EEPROM, and is used to store specification information of the battery cells, including temperature information, time information, depth of discharge, rate, and the number of times of charge and discharge.
The workflow of the management control device is as shown in fig. 3, S1: when the battery pack 102 is detected to update the battery unit 202, specification information of a new battery unit is acquired; s2: microcontroller 101 analyzes the specification information and evaluates the health of the battery cell based on the analysis result; s3: the microcontroller controls the charging and discharging processes of the battery pack 102 according to the evaluation result and updates the specification information of the corresponding battery unit. Wherein updating the specification information includes the microcontroller 101 writing the updated specification information back to the memory 2024 of the new battery cell.
Wherein, the evaluating the health condition of the battery unit based on the analysis result includes:
s21: the microcontroller 101 controls the heating unit 103 and/or the cooling unit 104 to work according to the analysis result; in some embodiments, the heating unit 103/or the cooling unit 104 may be controlled to raise/lower the temperature of the battery pack 102 according to the temperature information in the battery specification information, so that the corresponding battery unit 202 operates at a plurality of target operating temperatures, so as to facilitate detection of the battery unit 202;
s22: at the corresponding target temperature, the sensor unit 2022 of the new battery unit 202 detects sensor data of the battery cells; the hub 2023 of the new battery unit gathers the sensor data and sends the sensor data to the microcontroller 101; the collected sensor data are all information such as voltage, current and the like at the corresponding target temperature.
S23: the microcontroller 101 evaluates the health of the battery based on the sensor data and the analysis result. The microcontroller 101 evaluates the current health condition of the new battery according to the received information such as voltage, current and the like corresponding to the target temperatures and the specification information of the combined battery.
The control of the charging and discharging flow of the battery pack according to the evaluation result comprises the following steps:
s31: after the specification information is updated, the sensor unit 2022 of each battery cell 202 in the battery pack detects the sensor data of the corresponding battery cell 2021;
s32: the hub 2023 of each cell in the battery pack gathers the sensor data and sends the sensor data to the microcontroller 101; wherein the microcontroller 101 is connected to the hub 2023 in each cell of the battery using an SMSBUS bus;
s33: the microcontroller 101 controls the charge and discharge processes in the battery pack 102 according to the sensor data and the health of each battery cell 202. The microcontroller receives information such as temperature, voltage and current of each battery unit, and controls the charging flow and discharging flow of the battery pack according to the health evaluation result, the environment temperature information, the type information of the battery and the sensor information, wherein the control can comprise control over charging and discharging of a single battery unit in the battery pack, and can also uniformly control charging and discharging of all battery units in the whole battery pack; ambient temperature information is acquired by an ambient temperature sensor.
In addition, in some embodiments, a timer 108 is further provided, when the timer 108 exceeds a threshold value, the microcontroller 101 evaluates the health condition of each battery unit 202 in the battery pack 102, updates the specification information of the corresponding battery unit 202 according to the evaluation result, writes the specification information back to the memory 2024 of the corresponding battery unit, and if the battery unit of the battery pack is detected to not meet the safety standard, sends out alarm information to remind the user of battery replacement. After the vehicle is placed for a long time, battery information is updated and safety reminding is carried out.
In addition, the working temperature of the conventional lithium battery is-20 ℃ to 60 ℃, but the performance of the lithium battery is greatly reduced and the discharging capability is correspondingly reduced after the temperature is generally lower than 0 ℃, so that the working temperature of the lithium battery is completely, usually 0 ℃ to 40 ℃, and therefore when the microcontroller 101 detects that the temperature is lower than 0 ℃ through an ambient temperature sensor, the battery units corresponding to the lead-acid battery cells in the battery pack are controlled to be charged and discharged preferentially according to the health condition of each battery unit and the sensor data corresponding to each battery unit.
The management control device is applied to a vehicle-mounted power supply management system. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. A management control device of a hybrid battery, characterized in that: the battery pack comprises a microcontroller, a charging control unit, a discharging control unit, a heating unit, a cooling unit and a battery pack, wherein the battery pack is formed by connecting more than one battery unit in parallel;
the battery unit consists of a battery core, a battery management unit, a memory and a plurality of sensor units, wherein the memory is used for storing specification information of the battery unit; the battery core of at least one battery unit in the battery pack is a lead-acid battery core; the battery core of at least one battery unit in the battery pack is a lithium battery core;
when the battery pack is detected to update the battery unit, the newly replaced battery unit sends specification information of the battery unit to the microcontroller; the microcontroller analyzes the specification information, evaluates the health condition of the battery unit based on the analysis result, controls the charge control unit and the discharge control unit according to the evaluation result, updates the specification information of the corresponding battery unit, and writes the specification information back to the memory of the corresponding battery unit;
the charging control unit is used for controlling the charging flow of the battery pack, and the discharging control unit is used for controlling the discharging flow of the battery pack.
2. The management control apparatus according to claim 1, wherein: the specification information comprises temperature information, time information, discharge depth, rate and charge and discharge times; the plurality of sensor units include a temperature sensor, a voltage sensor, and a current sensor.
3. The management control apparatus according to any one of claims 1 to 2, wherein: the evaluation of the health condition of the battery unit based on the analysis result comprises:
the microcontroller unit controls the heating unit and/or the cooling unit to work according to the analysis result;
detecting sensor data of the battery cell by a sensor unit of the newly replaced battery cell;
the battery management unit of the newly replaced battery unit collects the sensor data and sends the sensor data to the microcontroller;
and the microcontroller evaluates the health condition of the battery according to the sensor data and the analysis result.
4. The management control apparatus according to any one of claims 1 to 2, wherein: the control of the charging and discharging flow of the battery pack according to the evaluation result comprises the following steps:
sensing units of all battery units in the battery pack detect sensor data of corresponding battery cells;
the battery management unit of each battery unit in the battery pack collects the sensor data and sends the sensor data to the microcontroller;
and the microcontroller controls the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit.
5. The management control apparatus according to claim 4, wherein:
the system also comprises an ambient temperature sensor for detecting the ambient temperature;
the controlling the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit comprises the following steps:
when the microcontroller detects that the ambient temperature is lower than 0 degree, the battery cells corresponding to the lead-acid battery cells in the battery pack are controlled to be charged preferentially according to the health conditions of the battery cells and the sensor data corresponding to the battery cells.
6. The management control apparatus according to claim 1, wherein:
and the microcontroller evaluates the health condition of each battery unit in the battery pack when the timer exceeds a threshold value, updates the specification information of the corresponding battery unit according to an evaluation result, and writes the specification information back to the memory of the corresponding battery unit.
7. A vehicle-mounted power supply management system comprising the management control apparatus according to any one of claims 1 to 6.
8. A vehicle-mounted power supply management method is characterized in that:
s1: when the battery pack is detected to update the battery units, specification information of new battery units is acquired, the battery pack is formed by connecting more than one battery unit in parallel, the battery core of at least one battery unit in the battery pack is a lead-acid battery core, and the battery core of at least one battery unit in the battery pack is a lithium battery core;
s2: the microcontroller analyzes the specification information, and evaluates the health condition of the battery unit based on the analysis result;
s3: and the microcontroller controls the charging and discharging processes of the battery pack according to the evaluation result and updates the specification information of the corresponding battery unit.
9. The vehicle-mounted power management method according to claim 8, the evaluating the health of the battery unit based on the analysis result comprising:
s21: the microcontroller controls the heating unit and/or the cooling unit to work according to the analysis result;
s22: the sensor unit of the new battery unit detects sensor data of the battery cell; the battery management unit of the new battery unit collects the sensor data and sends the sensor data to the microcontroller;
s23: and evaluating the health condition of the battery according to the sensor data and the analysis result.
10. The vehicle-mounted power management method according to claim 9, controlling the charge and discharge flow of the battery pack according to the evaluation result comprising:
s31: sensing units of all battery units in the battery pack detect sensor data of corresponding battery cells;
s32: the battery management unit of each battery unit in the battery pack collects the sensor data and sends the sensor data to the microcontroller;
s33: and the microcontroller controls the charging flow and the discharging flow in the battery pack according to the sensor data and the health condition of each battery unit.
CN202310718524.3A 2023-06-16 2023-06-16 Management control device of hybrid battery, vehicle-mounted power supply management system and method Active CN116455037B (en)

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CN103036299A (en) * 2012-12-28 2013-04-10 华为技术有限公司 Composite power supply method and device
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CN106505694A (en) * 2016-12-30 2017-03-15 卢文浩 A kind of management system of intelligent battery group and control method
CN109565180A (en) * 2016-07-12 2019-04-02 深圳市大疆创新科技有限公司 System and method for battery management

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102110995A (en) * 2009-12-23 2011-06-29 财团法人工业技术研究院 Battery charging device
CN103036299A (en) * 2012-12-28 2013-04-10 华为技术有限公司 Composite power supply method and device
CN105789716A (en) * 2016-03-03 2016-07-20 北京交通大学 Generalized battery management system
CN109565180A (en) * 2016-07-12 2019-04-02 深圳市大疆创新科技有限公司 System and method for battery management
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