CN116722624A - Wireless charging method and device for battery and storage medium - Google Patents

Wireless charging method and device for battery and storage medium Download PDF

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Publication number
CN116722624A
CN116722624A CN202310771193.XA CN202310771193A CN116722624A CN 116722624 A CN116722624 A CN 116722624A CN 202310771193 A CN202310771193 A CN 202310771193A CN 116722624 A CN116722624 A CN 116722624A
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CN
China
Prior art keywords
battery
charging
charger
wireless
hoc network
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Pending
Application number
CN202310771193.XA
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Chinese (zh)
Inventor
雷奥
刘轶鑫
刘鹏飞
佟丽翠
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FAW Group Corp
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FAW Group Corp
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Priority to CN202310771193.XA priority Critical patent/CN116722624A/en
Publication of CN116722624A publication Critical patent/CN116722624A/en
Pending legal-status Critical Current

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    • 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
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • 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
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application discloses a wireless charging method, device and storage medium for a battery. Wherein the method comprises the following steps: in response to receiving a charging instruction of a battery, establishing a wireless ad hoc network between the battery and a charger; transmitting the charging power of the battery to the charger by utilizing a wireless ad hoc network; in response to receiving an alternating magnetic field generated by the charger according to the charging power, the alternating magnetic field is converted into direct current, and the direct current is utilized to charge the battery. The application solves the technical problem of lower charging safety of the charging equipment in the related technology.

Description

Wireless charging method and device for battery and storage medium
Technical Field
The present application relates to the field of battery charging, and in particular, to a wireless battery charging method, device and storage medium.
Background
At present, the development of pure electric vehicles is fast and is becoming more popular, and the defects are also increasing, wherein the battery explosion or spontaneous combustion caused by overcharge or other conditions, and the voltage of a charging pile is too high, a driver is required to manually charge a plugging interface, and the charging pile is not intelligent; even if the wireless charging technology is available, the wireless communication between the battery management system and the charger is not realized, and the safety is ensured only by the battery management system, but the charging equipment cannot be immediately disconnected when the spontaneous combustion of the battery occurs, and the battery management system and the charger belong to passive safety.
Therefore, there is a technical problem in the related art that the charging safety of the charging device is low.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides a wireless charging method, a wireless charging device and a storage medium for a battery, which are used for at least solving the technical problem of low charging safety of charging equipment in the related technology.
According to an aspect of an embodiment of the present application, there is provided a wireless charging method of a battery, including: in response to receiving a charging instruction of a battery, establishing a wireless ad hoc network between the battery and a charger; transmitting the charging power of the battery to the charger by utilizing a wireless ad hoc network; in response to receiving an alternating magnetic field generated by the charger according to the charging power, the alternating magnetic field is converted into direct current, and the direct current is utilized to charge the battery.
Further, in the process of charging the battery with direct current, the method further includes: monitoring battery state parameters of a battery in real time by utilizing a wireless ad hoc network; and stopping power supply to the battery in response to the battery state parameter meeting the preset condition.
Further, in response to the battery state parameter meeting a preset condition, stopping power to the battery, including: and responding to the battery state parameter meeting a preset condition, and sending a power supply stopping instruction to the charger by utilizing the wireless ad hoc network, wherein the power supply stopping instruction is used for controlling the charger to stop supplying power to the battery.
Further, the alternating magnetic field is obtained by converting alternating current according to charging power by the charger, the alternating current is obtained by converting direct current output by the charging pile, and the charging pile corresponds to the charger.
Further, establishing a wireless ad hoc network between the battery and the charger, comprising: a first communication module in the battery is utilized to send a wireless ad hoc network establishment instruction to a second communication module in the charger; and responding to the received feedback information generated by the second communication module based on the wireless ad hoc network establishment instruction, and establishing the wireless ad hoc network.
Further, in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into direct current, comprising: in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into alternating current by using a first induction module in the battery; the alternating current is converted into direct current by using a first current conversion module.
Further, the alternating magnetic field is obtained by converting alternating current by a second induction module in the charger according to charging power, and the alternating current is obtained by converting direct current output by the charging pile by a second current conversion module.
Further, in response to receiving a charging instruction of the battery, establishing a wireless ad hoc network between the battery and the charger, comprising: detecting whether a charger exists in a preset area or not in response to receiving a charging instruction of a battery in the preset area; acquiring charging rights of a charging pile corresponding to a charger in response to the existence of the charger in a preset area; and establishing a wireless ad hoc network between the battery and the charger based on the charging authority.
According to another aspect of the embodiment of the present application, there is also provided a wireless charging device for a battery, including: the establishing module is used for responding to the received charging instruction of the battery and establishing a wireless ad hoc network between the battery and the charger; the transmitting module is used for transmitting the charging power of the battery to the charger by utilizing the wireless ad hoc network; and the conversion module is used for converting the alternating magnetic field into direct current in response to receiving the alternating magnetic field generated by the charger according to the charging power, and charging the battery by using the direct current.
According to a third aspect of embodiments of the present application, there is also provided a computer-readable storage medium including a stored program, wherein the wireless charging method of the battery described above is performed in a processor of a device in which the program is controlled to run.
According to a fourth aspect of an embodiment of the present application, there is also provided a vehicle including: and the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors execute the wireless charging method of the battery.
In the embodiment of the application, a wireless ad hoc network between a battery and a charger is established by responding to a charging instruction of the battery; transmitting the charging power of the battery to the charger by utilizing a wireless ad hoc network; in response to receiving an alternating magnetic field generated by the charger according to the charging power, the alternating magnetic field is converted into direct current, and the direct current is utilized to charge the battery. It is easy to notice that through converting alternating magnetic field generated by charger according to charging power into direct current, charge to each battery module, realized having wireless ad hoc network real-time communication function and adopting wireless induction type battery wireless charging purpose of charging mode concurrently, when realizing wireless charging, also improve interference killing feature and guarantee real-time communication effect through wireless ad hoc network mode, reached the technological effect of improving charging safety of charging equipment, and then solved the lower technical problem of charging safety of charging equipment among the related art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a flowchart of a wireless charging method of a battery according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an alternative first communication module and first sensing module location distribution in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of an alternative second communication module and second sensing module location distribution in accordance with an embodiment of the present application;
fig. 4 is a schematic diagram of a wireless charging device for a battery according to an embodiment of the present application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present application, there is provided an embodiment of a wireless charging method for a battery, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases the steps shown or described may be performed in an order different from that herein.
Fig. 1 is a flowchart of a wireless charging method of a battery according to an embodiment of the present application, as shown in fig. 1, the method comprising the steps of:
step S102, a wireless ad hoc network between a battery and a charger is established in response to receiving a charging instruction of the battery;
specifically, the above-described charging instruction may be used to indicate an instruction to wirelessly charge the battery.
The wireless ad hoc network can be used for representing wireless connection between a battery and a charger, and is realized through Smart Mesh (wireless sensor network technology). Smart Mesh is a decentralized network architecture, among other things, capable of supporting direct communication between devices without going through conventional infrastructure, such as WiFi (wireless local area network) or cellular networks. Smart Mesh can build a network in a self-organizing and self-repairing mode, has the characteristics of low power consumption, low cost, high reliability and the like, and is suitable for the fields of Internet of things, intelligent home, industrial automation and the like.
In an alternative embodiment, during the process of wirelessly charging the battery, a wireless ad hoc network between the battery and the charger needs to be established, and optionally, the battery and the charger are wirelessly connected and established based on a networking instruction.
Step S104, using wireless ad hoc network to send charging power of battery to charger;
specifically, the above-described charging power may be used to represent the charging power of the battery that the battery management system sends to the charger.
In an alternative embodiment, in the process of wirelessly charging the batteries, the charging power of the batteries needs to be determined, and in the case that the charger needs to meet the charging power of each battery, the charging power of the current battery needs to be determined and sent to the charger for charging, because there may be a difference in the charging power of each battery.
Step S106, in response to receiving the alternating magnetic field generated by the charger according to the charging power, the alternating magnetic field is converted into direct current, and the direct current is used for charging the battery.
Specifically, the alternating magnetic field described above may be used to indicate an alternating magnetic field generated by an induction module in the charger based on the charging power after the charger receives the charging power.
In an alternative embodiment, after the charger receives the charging power, the induction module converts the alternating current into an alternating magnetic field based on the charging power, and meanwhile, the induction module in the battery converts the alternating magnetic field into alternating current, and converts the alternating current into direct current through AC-DC (alternating current is converted into direct current); meanwhile, the induction type power supply module converts an alternating magnetic field into alternating current through induction, and converts the alternating magnetic field into low voltage to supply power to each communication sub-management unit through an AC-DC (power converter), and the power converter is commonly used in electronic equipment to convert alternating current power into direct current power and then convert the direct current power into another voltage or current required by the equipment. AC-DC converters are commonly used in power management or voltage regulation applications in electronic devices.
In which, in the process of converting alternating current into direct current, the alternating current is a periodically varying current, the direction and the magnitude of which vary with time, and the direct current is a constant direction and magnitude current. AC-DC conversion is typically achieved by using a rectifier that converts alternating current into direct current in the form of pulses or a power converter that converts alternating current into direct current of constant magnitude. This conversion is very common in many electronic devices and power systems, as most electronic devices require the use of direct current for proper operation.
Fig. 2 is a schematic diagram of an alternative first communication module and first sensing module location distribution in accordance with an embodiment of the present application. As shown in fig. 2, the control end is a battery wireless BMS (Battery Management System ) control end, which may be simply referred to as a master control, and the master control includes a communication module and a charging module. The communication module is located inside the battery and is a first communication module, i.e. communication 1 in fig. 2, and the charging module is located inside the battery and is a first sensing module, i.e. sensing 1 in fig. 2. The communication 1 includes a communication management unit, abbreviated as ST, which includes communication management units, abbreviated as ST1, ST2, …, stn+1, etc., each of which is mounted in a different battery module. Meanwhile, the battery comprises a plurality of battery modules, each battery module is composed of a corresponding communication management unit and a corresponding power supply module, interconnection and priority judgment can be achieved among the plurality of battery modules and between each battery module and the master control, so that the collision rate is reduced, and the battery module is used in an emergency.
Fig. 3 is a schematic diagram of an alternative second communication module and second sensing module location distribution in accordance with an embodiment of the present application. As shown in fig. 3, the control terminal is a charger control terminal, may be simply referred to as a slave control, and includes a communication module and a charging module. The second communication module, i.e. communication 2 in fig. 3, is located inside the charger, and the second sensing module, i.e. sensing 2 in fig. 3, is located inside the charger.
Detecting the current voltage under the super capacitor, performing power calculation according to the voltage, calculating the relative time to match the power, and further converting the alternating current under the voltage into an alternating magnetic field and into a corresponding charging voltage to meet the power balance; the charging requirement is met, whether the receiving coil is above the coil or not is detected, the open-circuit voltage is detected, the adjustment is carried out when the gesture is incorrect, the capacity of the super capacitor is detected for matching, and the input power is added and calculated; the induction 1 simultaneously acts to convert the alternating magnetic field into alternating current and convert the alternating magnetic field into direct current through AC-DC; BA also converts the alternating magnetic field into alternating current by induction, and becomes low voltage by AC-DC to supply power to ST1, ST2, etc.
Meanwhile, the communication 1 comprises an induction type power supply module, the communication 2 comprises a DC-DC (voltage of one direct current power supply is converted into voltage of the other direct current power supply) power supply module, and the communication mode is that wireless ad hoc network type communication is realized through Smart Mesh, and control logic is built in a slave control. The inductive power supply modules BA in the communication 1 supply power to the above ST1, ST2, etc. in different battery modules, abbreviated as BA1, BA2, etc., and BA1, BA2, etc. are connected in parallel. The DC-DC power supply module is installed inside the charger and converts direct current high voltage into low voltage to supply power to the communication 2. ST1, ST2, etc. are respectively communicated with ST, the random 16 system sequence sent by the master control in the ad hoc network is matched with the random sequence generated by the module, the method comprises the steps of carrying out frequency conversion and filtering treatment on signals, establishing a preset correlation degree between channel information, establishing a random channel, transmitting battery information to ST many-to-one communication and interactive communication by ST1, ST2, etc., and determining the priority through interactive judgment; also included is that ST transmits control information to one-to-many communication such as ST1, ST2, etc.
In converting the voltage of one dc power source to another, it may step up, step down, or remain the same for various power management and power conversion applications. DC-DC converters are typically composed of switching power supply circuits, transformers, inductors, capacitors, diodes, etc., which can achieve high efficiency voltage conversion.
In addition, the battery and the charger are completely in wireless connection, and are charged through wireless induction and are in wireless ad hoc network communication. And the communication modes of the battery and the charger comprise: the battery internal BMS records public MAC (Media Access Control Address ) addresses in advance, under the condition that a battery to be charged enters a designated charging area, the master control actively detects a charger, enters a searching state after detection, adds the battery to be charged into a charging pile node, obtains charging authority at the same time, and transmits charging power of the battery to be charged to the charger, so that the charger determines the charging power of the battery to be charged.
Further, the battery internal BMS records the public MAC address in advance, and adds a series of random 16-system random numbers and second-type random numbers into networking signals through other self-networking equipment, so that the communication module can identify and send current priority and information, and when a plurality of pieces of equipment send information at the same time, each module is identified, and identification judgment is carried out among the modules to determine the transmission priority; under normal conditions, the working modes are subjected to weighted average through interconnection of random numbers to judge whether the working modes are at the same level, and after abnormal values appear, the priority of the modes is improved and sent to a master control; when a battery to be charged enters a designated charging area, the main control actively detects a charger, enters a searching state after the detection, joins a node of a charging pile, obtains charging authority, identifies a random number, establishes connection, and carries out priority judgment, and the BMS transmits charging power information to the charger, and the charger determines charging power according to the information; the battery modules and the master control can be interconnected and the priority judgment can be made, so that the collision rate is reduced and the battery module is used in emergency.
In summary, a wireless ad hoc network between a battery and a charger is established by responding to a charging instruction of the battery; transmitting the charging power of the battery to the charger by utilizing a wireless ad hoc network; in response to receiving an alternating magnetic field generated by the charger according to the charging power, the alternating magnetic field is converted into direct current, and the direct current is utilized to charge the battery. It is easy to notice that through converting alternating magnetic field generated by charger according to charging power into direct current, charge to each battery module, realized having wireless ad hoc network real-time communication function and adopting wireless induction type battery wireless charging purpose of charging mode concurrently, when realizing wireless charging, also improve interference killing feature and guarantee real-time communication effect through wireless ad hoc network mode, reached the technological effect of improving charging safety of charging equipment, and then solved the lower technical problem of charging safety of charging equipment among the related art.
Optionally, in the process of charging the battery with direct current, the method further comprises: monitoring battery state parameters of a battery in real time by utilizing a wireless ad hoc network; and stopping power supply to the battery in response to the battery state parameter meeting the preset condition.
Specifically, the above-mentioned battery state parameter may be used to represent parameters of the battery during the charging process, including but not limited to a temperature parameter, a battery available charge number parameter, etc., and the battery state parameter is not specifically limited herein.
The preset condition may be used to indicate a condition that the battery state parameter is satisfied when the power supply to the battery is stopped.
In an alternative embodiment, in the process of charging the battery by using direct current, the wireless ad hoc network may be used to monitor the battery state parameter in real time, so as to ensure the charging safety of the battery, and when the battery state parameter meets the preset condition, it is indicated that the charge amount of the battery currently reaches the saturated state, the power supply to the battery needs to be stopped, otherwise, the charging safety of the battery is affected.
In another alternative embodiment, the available charge number of the battery may be monitored in real time, or the cell temperature value of the battery may be monitored in real time, when the available charge number of the battery is smaller than a preset maximum value, or the cell temperature exceeds a preset temperature threshold, or the current or voltage of the battery exceeds a preset threshold, or the like, to stop supplying power to the battery.
In a third alternative embodiment, the power supply to the battery may be stopped by the module sensing module of the battery automatically powering off, or by the charger stopping the power supply to the battery. Specifically, when the available charge number of the battery is smaller than the maximum value, the module sensing module is powered off when the temperature of the battery cell exceeds a threshold value. In addition, when the available charge number of the battery is smaller than the maximum value, the temperature of the battery is normal, but the current or voltage of the battery exceeds a threshold value, voltage limiting or current limiting is carried out, when the voltage limiting or current limiting is regulated and controlled, the battery still exceeds the threshold value, the battery sends information to the charger through the wireless ad hoc network, and the charger stops supplying power.
To sum up, stopping power to the battery includes the following logic: (1) When the SOC is smaller than the maximum value, the module induction module cuts off power when the temperature of the battery monomer detects a threshold value; (2) When the SOC is smaller than the maximum value, the battery temperature is normal, voltage limiting or current limiting is carried out when the current or voltage exceeds a threshold value, and when the voltage limiting or current limiting is regulated and controlled to still exceed the threshold value, the battery sends information to the charger, and the charger stops supplying power.
Optionally, stopping power supply to the battery in response to the battery state parameter meeting a preset condition, including: and responding to the battery state parameter meeting a preset condition, and sending a power supply stopping instruction to the charger by utilizing the wireless ad hoc network, wherein the power supply stopping instruction is used for controlling the charger to stop supplying power to the battery.
Specifically, the above-described power supply stop command may be used to indicate a command issued by the communication module of the battery to control the charger to stop supplying power to the battery.
In an alternative embodiment, the wireless ad hoc network may be used to send a power stopping instruction to the charger when the battery state parameter meets a preset condition and the power of the battery is stopped. Specifically, when it is monitored that the battery state parameter meets a preset condition, that is, the available charge number of the battery is smaller than a preset maximum value, or the temperature of a battery monomer exceeds a preset temperature threshold, or the current or voltage of the battery exceeds a preset threshold, or the like, wireless ad hoc network between the battery and the charger is needed, a communication module of the battery sends a power supply stopping instruction to a communication module of the charger, and the charger immediately responds to the instruction after receiving the power supply stopping instruction and stops supplying power to the battery.
Optionally, the alternating magnetic field is obtained by converting alternating current by the charger according to charging power, the alternating current is obtained by converting direct current output by the charging pile, and the charging pile corresponds to the charger.
Specifically, in the process of wirelessly charging the battery, the direct current output by the charging pile is required to be converted to obtain alternating current, and meanwhile, the charger corresponding to the charging pile converts the converted alternating current according to the charging power of the battery to obtain a converted alternating magnetic field. Meanwhile, after the alternating magnetic field is sensed by the battery, the induction module in the battery can convert the alternating magnetic field into alternating current, and the alternating current is converted into direct current through AC-DC (alternating current-direct current), so that the battery in each battery module is powered.
Optionally, establishing a wireless ad hoc network between the battery and the charger includes: a first communication module in the battery is utilized to send a wireless ad hoc network establishment instruction to a second communication module in the charger; and responding to the received feedback information generated by the second communication module based on the wireless ad hoc network establishment instruction, and establishing the wireless ad hoc network.
Specifically, the first communication module described above may be used to represent a communication module in a battery, i.e., communication 1 in fig. 2.
The second communication module described above may be used to represent the communication module in the charger, i.e. communication 2 in fig. 3.
The wireless ad hoc network establishment instruction can be used for indicating an instruction for establishing wireless ad hoc network correspondence between the battery and the charger based on Smart Mesh.
The feedback information can be used for indicating the information fed back by the second communication module after receiving the wireless ad hoc network establishment instruction.
In an alternative embodiment, wireless ad hoc network communication can be realized based on Smart Mesh, and ST1, ST2 and the like respectively perform one-to-one communication with ST, wherein ST1, ST2 and the like are included to transmit battery information to ST for many-to-one communication; also included is that ST transmits control information to ST1, ST2, etc. for one-to-many communication. Meanwhile, the charging mode is that under the condition that a communication protocol is met and a wireless ad hoc network is established, the charging equipment can acquire battery BMS information in real time, and charging can be started.
Optionally, in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into direct current, including: in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into alternating current by using a first induction module in the battery; the alternating current is converted into direct current by using a first current conversion module.
Specifically, the first current conversion module described above may be used to represent a module that converts alternating current into direct current.
The first induction module described above may be used to represent a module for converting an alternating magnetic field into alternating current.
In an alternative embodiment, after the battery senses the alternating magnetic field, the first sensing module in the battery can convert the received alternating magnetic field into alternating current, and meanwhile, the first current conversion module converts the alternating current into direct current to supply power to the batteries in different battery modules.
In another alternative embodiment, induction 2 converts alternating current into an alternating magnetic field; the induction 1 simultaneously acts to convert the alternating magnetic field into alternating current and convert the alternating magnetic field into direct current through AC-DC; BA also converts the alternating magnetic field into alternating current by induction, and becomes low voltage by AC-DC to supply power to ST1, ST2, etc.
Optionally, the alternating magnetic field is obtained by converting alternating current by a second induction module in the charger according to charging power, and the alternating current is obtained by converting direct current output by the charging pile by a second current conversion module.
Specifically, the second current conversion module described above may be used to represent a module that converts the direct current output from the charging pile into alternating current.
The second induction module may be used to represent a module obtained by performing alternating magnetic field conversion on the alternating current based on the charging power of the battery.
In an alternative embodiment, in the process of wirelessly charging the battery, the second current conversion module is required to convert the direct current output by the charging pile to obtain alternating current, and meanwhile, the charger corresponding to the charging pile converts the converted alternating current according to the charging power of the battery through the second induction module to obtain the converted alternating magnetic field.
Optionally, in response to receiving a charging instruction of the battery, establishing a wireless ad hoc network between the battery and the charger, including: detecting whether a charger exists in a preset area or not in response to receiving a charging instruction of a battery in the preset area; acquiring charging rights of a charging pile corresponding to a charger in response to the existence of the charger in a preset area; and establishing a wireless ad hoc network between the battery and the charger based on the charging authority.
Specifically, the preset area may be used to represent a preset wireless charging distance between the battery and the charger. I.e. in case the actual distance between the battery and the charger meets the above-mentioned preset area, a wireless ad hoc network between the battery and the charger can be established.
The charging authority can be used for indicating the charging authority of the charging pile corresponding to the charger, namely whether the charger is matched with the charging pile or not.
In an alternative embodiment, in response to receiving a charging instruction of a battery, in a process of establishing a wireless ad hoc network between the battery and the charger, in response to receiving the charging instruction of the battery in a preset area, it is indicated that a distance between the battery and the charger meets an establishment condition of the wireless ad hoc network, and then whether the charger exists in the preset area, that is, only the charger exists, the wireless ad hoc network can be established based on the battery and the charger, in response to the existence of the charger in the preset area, and then a charging permission of the charger corresponding to a charging pile is obtained, that is, whether the existing charger is matched with the charging pile, and in case that the charger is matched with the charging pile, the wireless ad hoc network between the battery and the charger can be established, otherwise, in case that the charger is not matched with the charging pile, a search state needs to be continuously entered until the added charging pile is matched with the charger, and then the subsequent wireless ad hoc network is established.
In summary, the application provides a battery management system and a control method thereof which simultaneously have a wireless ad hoc network real-time communication function and adopt a wireless induction charging mode, wherein two control ends are respectively a battery wireless BMS control end (master control for short) and a charger control end (slave control for short); the master control and the slave control respectively comprise a communication module and a charging module; the communication module is positioned in the battery and is used for communication 1, and the communication module is positioned in the charger and is used for communication 2; the charging module is positioned in the battery and is provided with an induction 1, and the charging module is positioned in the charger and is provided with an induction 2; wherein communication 1 comprises an inductive power supply module and communication 2 comprises a DC-DC power supply module; the communication mode is that wireless ad hoc network communication is realized through Smart Mesh, and control logic is built in a slave control.
The charging mode is that when the communication protocol is met and wireless networking is established, the charging equipment can obtain battery BMS information in real time, and charging can be started. Induction 2 converts alternating current into an alternating magnetic field; the induction 1 simultaneously acts to convert the alternating magnetic field into alternating current and convert the alternating magnetic field into direct current through AC-DC; BA also converts the alternating magnetic field into alternating current by induction, and becomes low voltage by AC-DC to supply power to ST1, ST2, etc. Not only realize wireless charging, also improve interference killing feature and guarantee real-time communication effect through wireless ad hoc network mode, more will be passive safety to initiative safety, can the instantaneous disconnection charging equipment guarantees the security when dangerous condition appears.
Example 2
According to the embodiment of the present application, a wireless charging device for a battery is further provided, where the wireless charging device can execute the wireless charging method for a battery provided in the foregoing embodiment 1, and a specific implementation manner and a preferred application scenario are the same as those in the foregoing embodiment 1, and are not described herein.
Fig. 4 is a schematic view of a wireless charging device for a battery according to an embodiment of the present application, as shown in fig. 4, the device including:
a building module 402, configured to build a wireless ad hoc network between the battery and the charger in response to receiving a charging instruction of the battery;
a transmitting module 404, configured to transmit the charging power of the battery to the charger using the wireless ad hoc network;
the conversion module 406 is configured to convert the alternating magnetic field into direct current in response to receiving the alternating magnetic field generated by the charger according to the charging power, and charge the battery with the direct current.
Optionally, the conversion module 406 includes: the monitoring module is used for monitoring battery state parameters of the battery in real time by utilizing the wireless ad hoc network; and the stopping module is used for stopping power supply to the battery in response to the battery state parameter meeting the preset condition.
Optionally, the stopping module includes: and the instruction sending module is used for responding to the condition that the battery state parameter meets the preset condition and sending a power supply stopping instruction to the charger by utilizing the wireless ad hoc network, wherein the power supply stopping instruction is used for controlling the charger to stop supplying power to the battery.
Optionally, the apparatus further comprises: the first conversion module is used for converting alternating current into alternating current according to charging power by the charger, the alternating current is obtained by converting direct current output by the charging pile, and the charging pile corresponds to the charger.
Optionally, the establishing module 402 includes: the wireless ad hoc network establishment module is used for sending a wireless ad hoc network establishment instruction to the second communication module in the charger by utilizing the first communication module in the battery; and the ad hoc network establishing module is used for establishing the wireless ad hoc network in response to receiving feedback information generated by the second communication module based on the wireless ad hoc network establishing instruction.
Optionally, the conversion module 406 includes: the magnetic field conversion module is used for converting the alternating magnetic field generated by the charger according to the charging power into alternating current by utilizing the first induction module in the battery; the alternating current conversion module is used for converting alternating current into direct current by utilizing the first current conversion module.
Optionally, the apparatus further comprises: the second conversion module is used for converting alternating current into direct current output by the charging pile according to charging power by the second induction module in the alternating magnetic field charger.
Optionally, the establishing module 402 includes: the detection module is used for responding to the charging instruction received by the battery in the preset area and detecting whether a charger exists in the preset area; the right acquisition module is used for acquiring the charging right of the charging pile corresponding to the charger in response to the existence of the charger in the preset area; and the ad hoc network establishing module is used for establishing a wireless ad hoc network between the battery and the charger based on the charging authority.
Example 3
According to an embodiment of the present application, there is also provided a computer-readable storage medium including a stored program, wherein the wireless charging method of the battery described above is performed in a processor of a device in which the program is controlled to run.
Example 4
According to an embodiment of the present application, there is also provided a vehicle including: and the storage device is used for storing one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors execute the wireless charging method of the battery.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. A wireless charging method of a battery, the method being applied to a battery terminal, comprising:
in response to receiving a charging instruction of a battery, establishing a wireless ad hoc network between the battery and a charger;
transmitting charging power of the battery to the charger by using the wireless ad hoc network;
and in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into direct current, and charging the battery by using the direct current.
2. The wireless charging method of a battery according to claim 1, wherein in charging the battery with the direct current, the method further comprises:
monitoring battery state parameters of the battery in real time by utilizing the wireless ad hoc network;
and stopping power supply to the battery in response to the battery state parameter meeting a preset condition.
3. The wireless charging method of a battery according to claim 2, wherein stopping power supply to the battery in response to the battery state parameter satisfying a preset condition comprises:
and responding to the battery state parameter meeting the preset condition, and sending a power supply stopping instruction to the charger by utilizing the wireless ad hoc network, wherein the power supply stopping instruction is used for controlling the charger to stop supplying power to the battery.
4. The wireless charging method of a battery according to claim 1, wherein the alternating magnetic field is obtained by converting alternating current by the charger according to the charging power, the alternating current is obtained by converting direct current output by a charging pile, and the charging pile corresponds to the charger.
5. The method of wireless charging of a battery of claim 1, wherein establishing a wireless ad hoc network between the battery and a charger comprises:
transmitting a wireless ad hoc network establishment instruction to a second communication module in the charger by using a first communication module in the battery;
and responding to the received feedback information generated by the second communication module based on the wireless ad hoc network establishment instruction, and establishing the wireless ad hoc network.
6. The wireless charging method of the battery according to claim 1, wherein converting the alternating magnetic field into direct current in response to receiving the alternating magnetic field generated by the charger according to the charging power, comprises:
in response to receiving an alternating magnetic field generated by the charger according to the charging power, converting the alternating magnetic field into alternating current by using a first induction module in the battery;
the alternating current is converted into the direct current by a first current conversion module.
7. The wireless charging method of a battery according to claim 4, wherein the alternating magnetic field is obtained by converting the alternating current by a second induction module in the charger according to the charging power, and the alternating current is obtained by converting the direct current output by the charging pile by a second current conversion module.
8. The wireless charging method of the battery according to claim 1, wherein establishing a wireless ad hoc network between the battery and a charger in response to receiving a charging instruction of the battery comprises:
detecting whether a charger exists in a preset area or not in response to receiving the charging instruction of the battery in the preset area;
responding to the existence of the charger in the preset area, and acquiring the charging authority of the charging pile corresponding to the charger;
the wireless ad hoc network between the battery and the charger is established based on the charging rights.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein the program, when run, controls a processor of a device in which the wireless charging method of a battery according to any one of claims 1 to 8 is performed.
10. A vehicle, characterized by comprising:
one or more processors;
a storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors are caused to perform the wireless charging method of a battery of any of claims 1 to 8.
CN202310771193.XA 2023-06-27 2023-06-27 Wireless charging method and device for battery and storage medium Pending CN116722624A (en)

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CN202310771193.XA CN116722624A (en) 2023-06-27 2023-06-27 Wireless charging method and device for battery and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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