CN110785909A - Control method of intelligent battery, intelligent battery and unmanned aerial vehicle - Google Patents

Control method of intelligent battery, intelligent battery and unmanned aerial vehicle Download PDF

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Publication number
CN110785909A
CN110785909A CN201880041278.XA CN201880041278A CN110785909A CN 110785909 A CN110785909 A CN 110785909A CN 201880041278 A CN201880041278 A CN 201880041278A CN 110785909 A CN110785909 A CN 110785909A
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battery
intelligent
intelligent battery
charging
working state
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CN201880041278.XA
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林茂疆
田杰
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SZ DJI Technology Co Ltd
Shenzhen Dajiang Innovations Technology Co Ltd
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Shenzhen Dajiang Innovations Technology Co Ltd
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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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from 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
    • H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
    • 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
    • B60L2200/00—Type of vehicles
    • B60L2200/10—Air crafts
    • 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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (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 utility model provides a control method, intelligent battery and unmanned aerial vehicle of intelligent battery, intelligent battery is connected with consumer and extension device respectively, and the control method of intelligent battery includes following steps: and receiving a signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device. And controlling the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device so as to control the charging and discharging of the intelligent battery. The intelligent battery system is convenient for a user to directly connect a plurality of independent intelligent batteries together, and also enables the plurality of connected intelligent batteries to be directly communicated with each other, thereby being suitable for various application scenes.

Description

Control method of intelligent battery, intelligent battery and unmanned aerial vehicle
Technical Field
The disclosure relates to a control method of an intelligent battery, the intelligent battery and an unmanned aerial vehicle.
Background
In the prior art, a plurality of batteries are generally connected in parallel to form a large-capacity battery so as to meet the higher cruising requirement of electric equipment. However, the current battery is not provided with an independent expansion interface, and a user cannot directly connect the independent batteries together, and cannot directly communicate between the batteries, so that the application scenarios are limited.
Disclosure of Invention
The technical problem to be solved by the present disclosure is how to provide a control method for an intelligent battery.
Another technical problem to be solved by the present disclosure is how to provide an intelligent battery with convenient connection and communication function.
Still another technical problem that this disclosure will solve is how to provide a unmanned aerial vehicle with above-mentioned intelligent battery.
Additional aspects and advantages of the disclosure will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the disclosure.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
according to an aspect of the present disclosure, there is provided a method for controlling a smart battery, the smart battery being respectively connected to an electric device and an expansion device, the method comprising: receiving a signal identification instruction of the intelligent battery, working state parameters of the intelligent battery and working state parameters of the expansion device; and controlling the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device so as to control the charging and discharging of the intelligent battery.
According to another aspect of the present disclosure, a smart battery is provided for powering a powered device. The intelligent battery comprises a power supply interface, an expansion interface and a control unit. The power supply interface is connected with the electric equipment. The expansion interface is connected with an expansion device and is configured to send a signal identification command and working state parameters of the expansion device to the control unit. The control unit is configured to acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery.
According to still another aspect of the present disclosure, there is provided a drone including a body and a power mechanism. The unmanned aerial vehicle further comprises a battery assembly, wherein the battery assembly comprises at least one intelligent battery; the intelligent battery comprises a power supply interface, an expansion interface and a control unit; the power supply interface is used for being connected with electric equipment of the unmanned aerial vehicle; the expansion interface is used for being connected with an expansion device, and the expansion interface is configured to send a signal identification instruction to the control unit and is used for sending working state parameters of the expansion device to the control unit; the control unit is configured to acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery.
According to the technical scheme, the control method of the intelligent battery provided by the disclosure receives and controls the on-off of the charging and discharging link of the intelligent battery according to the signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device so as to control the charging and discharging of the intelligent battery, and can adapt to various application scenes of the intelligent battery.
The intelligent battery provided by the disclosure comprises a power supply interface, an expansion interface and a control unit. The power supply interface is connected with the electric equipment. The expansion interface is connected with an expansion device and is configured to send a signal identification command and working state parameters of the expansion device to the control unit. The control unit is configured to acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery. The intelligent battery that this disclosure provided has the expansion interface of independent setting, and the user of being convenient for directly links together this intelligent battery of a plurality of independence, also makes and can realize direct communication between the intelligent battery of a plurality of links to adapt to multiple application scenario.
Further, in one of the embodiments of the present disclosure, when the application scenario in which a plurality of smart batteries are connected is applied, the present disclosure can preferentially select the smart battery with high electric quantity to supply power until the electric quantities of the smart batteries are the same, so that the smart battery provided by the present disclosure can satisfy a higher cruising requirement while ensuring the power supply safety.
The utility model provides an unmanned aerial vehicle, including organism, power unit and battery pack, battery pack includes at least one intelligent battery. The power supply interface is connected with unmanned aerial vehicle's consumer for unmanned aerial vehicle's battery pack possesses the above-mentioned beneficial effect of the intelligent battery that this disclosure provided, thereby makes unmanned aerial vehicle when guaranteeing flight safety, can satisfy higher continuation of the journey requirement.
Drawings
FIG. 1 is a control flow diagram illustrating a method of controlling a smart battery according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating the structure of a smart battery according to an exemplary embodiment;
FIG. 3 is a schematic connection diagram of the smart battery shown in FIG. 2 in a multi-battery connection scenario;
fig. 4 is a schematic connection diagram of the smart battery shown in fig. 2 in a charging device connection scenario.
Wherein the reference numerals are as follows:
100. a smart battery;
110. a power supply interface;
120. an expansion interface;
130. a battery switch;
140. a control unit;
200. a charging device.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Referring to fig. 1, the present disclosure discloses a control method for an intelligent battery, which may be used for controlling the intelligent battery. The intelligent battery is respectively connected with the electric equipment and the expansion device, and the control method of the intelligent battery comprises the following steps:
step S01, receiving working state parameters of the intelligent battery;
step S02, receiving a signal identification instruction of the intelligent battery;
step S03, receiving the working state parameter of the expansion device;
and step S04, controlling the on-off of the charge and discharge link of the intelligent battery according to the signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device so as to control the charge and discharge of the intelligent battery.
As shown in fig. 1, the operating state parameter of the smart battery, the signal identification command of the smart battery (sent to the smart battery by the expansion device), and the operating state parameter of the expansion device may be received simultaneously or in any order, that is, the execution order of step S01, step S02, and step S03 is not limited, and step S04 may be executed after step S01, step S02, and step S03.
For example, to implement the above method, an intelligent battery may be provided, where the intelligent battery mainly includes a power supply interface, an expansion interface, and a control unit. Specifically, the power supply interface is used for connecting with the electric equipment. The expansion interface is used for connecting with an expansion device, which can be another intelligent battery or a charging device. The expansion interface can send a signal identification instruction to the control unit and can send working state parameters of the expansion device to the control unit. The control unit can acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery.
Further, in this embodiment, the method for controlling a smart battery according to the present disclosure further includes: the intelligent battery also comprises a signal identification device, and the signal identification device receives the signal identification command sent by the expansion device and determines the type of the signal identification command.
When the expansion device comprises at least one intelligent battery, the signal identification instruction of the expansion device is a first signal identification instruction, the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery, and the working state parameter of the expansion device comprises the output voltage of the at least one intelligent battery. In summary, the control method of the intelligent battery comprises the following steps: and receiving a first signal identification command, the output voltage of the intelligent battery and the output voltage of at least one intelligent battery. And controlling the on-off of a charging and discharging link of the intelligent battery according to the first signal identification instruction, the output voltage of the intelligent battery and the output voltage of at least one intelligent battery so as to control the charging and discharging of the intelligent battery.
Further, when at least two intelligent batteries are connected in parallel, the control of the on-off of the charging and discharging link of the intelligent batteries comprises: and calculating the voltage difference between the at least two intelligent batteries according to the output voltages of the at least two intelligent batteries. And when the voltage difference is greater than or equal to a first preset voltage threshold, controlling the charging link of the intelligent battery at the high output voltage side to be disconnected, controlling the discharging link to be connected, and controlling the charging link and the discharging link of the intelligent battery at the low output voltage side to be disconnected. And when the voltage difference is smaller than a first preset voltage threshold, the discharging links of the intelligent batteries are controlled to be connected, and the charging links are disconnected.
In addition, the control method of the smart battery may further include the steps of: the method comprises the steps of determining an intelligent battery connected with electric equipment as a main battery, obtaining working state parameters of at least two intelligent batteries by the main battery, and controlling the on-off of charging and discharging links of the at least two intelligent batteries according to the working state parameters of the at least two intelligent batteries. It can be understood that, when the extension device connected with the main battery is an intelligent battery, the intelligent battery can be connected with another intelligent battery through the extension interface again, so that the number of the intelligent batteries connected with the electric equipment is multiple, and the multiple intelligent batteries can supply power for the electric equipment.
It is to be understood that the setting of the main battery is not limited to the smart battery connected to the electric device, and one smart battery may be arbitrarily designated as the main battery. In another embodiment, the main battery may not be designated, but the working state parameters of the intelligent batteries are respectively obtained inside each intelligent battery, and the on-off of the charge and discharge links of the at least two intelligent batteries is controlled according to the working state parameters of the at least two intelligent batteries, which is not limited in this embodiment.
Furthermore, when the expansion device comprises a charging device, the signal identification command of the expansion device is a second signal identification command, the operating state parameter of the smart battery comprises the output voltage of the smart battery, and the operating state parameter of the expansion device comprises the output voltage of the charging device. In summary, the control method of the intelligent battery comprises the following steps: and receiving a second signal identification command, the output voltage of the intelligent battery and the output voltage of the charging device. And controlling the on-off of a charging and discharging link of the intelligent battery according to the second signal identification instruction, the output voltage of the intelligent battery and the output voltage of the charging device so as to control the charging and discharging of the intelligent battery.
Further, the control of the on/off of the charging and discharging link of the intelligent battery comprises: and when the output voltage of the intelligent battery is greater than or equal to the second preset voltage threshold, controlling the disconnection of the charging link and the connection of the discharging link of the intelligent battery. And when the output voltage of the intelligent battery is smaller than a second preset voltage threshold, controlling the charging link of the intelligent battery to be connected, and controlling the discharging link to be disconnected or connected. That is, the intelligent battery can discharge the disconnection of the link while the charging device is charging, and at this time, the charging device is not supplying power to the electric equipment while charging; the intelligent battery may also be connected to the discharge link while the charging device is charging, and at this time, the charging device is charging while supplying power to the electric device, which is not limited in this embodiment.
Further, in the present embodiment, the power supply interface of the smart battery and the electric device may be preferably connected through a power supply bus.
Further, in the present embodiment, the power supply bus may preferably be an I2C bus or a UART bus.
Further, in the present embodiment, the expansion interface of the smart battery and the expansion device (e.g., the expansion interface of another smart battery or the charging interface of the charging device) may be preferably connected through a cascade bus.
Further, in the present embodiment, the cascade bus may preferably be a CAN bus.
Further, in this embodiment, a battery switch may be further disposed on the smart battery. This battery switch can control the break-make of intelligent battery's charge-discharge link to supply the operating condition of operator's manual adjustment intelligent battery, for example when a plurality of intelligent battery connect, the intelligent battery that controls the electric quantity through manual operation is high preferentially supplies power, opens whole intelligent battery simultaneously power supply again until each intelligent battery electric quantity is the same.
In summary, the control method for the smart battery provided by the present disclosure receives and controls the on/off of the charge/discharge link of the smart battery according to the signal identification instruction of the smart battery, the operating state parameter of the smart battery, and the operating state parameter of the expansion device, so as to control the charge/discharge of the smart battery, and can adapt to various application scenarios of the smart battery.
Referring to fig. 2, the embodiment of the present disclosure further provides a smart battery 100. A schematic diagram of a smart battery capable of embodying the principles of the present disclosure is representatively illustrated in fig. 2. In this exemplary embodiment, the smart battery 100 proposed by the present disclosure is illustrated by taking a smart battery applied to a drone as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the smart battery of the present disclosure to other powered devices, and such changes are within the scope of the principles of the smart battery of the present disclosure.
As shown in fig. 2, in the present embodiment, the smart battery 100 proposed by the present disclosure mainly includes a power supply interface 110, an expansion interface 120, and a control unit 140. Specifically, the power supply interface 110 is used to connect to a power-consuming device such as a drone. The expansion interface 120 is used to connect with an expansion device, which may be, for example, another smart battery 100 or a charging device proposed by the present disclosure. The expansion interface 120 can send a signal identification command to the control unit 140, and can send an operating state parameter of the expansion device to the control unit 140. The control unit 140 can obtain the operating state parameters of the intelligent battery 100, and control the on/off of the charging/discharging link of the intelligent battery 100 according to the signal identification instruction, the operating state parameters of the expansion device, and the operating state parameters of the intelligent battery 100. Through the above design, the intelligent battery 100 provided by the present disclosure has the independently arranged expansion interface 120, so that a user can directly connect a plurality of independent intelligent batteries 100 together, and direct communication can be realized among a plurality of connected intelligent batteries 100, thereby adapting to various application scenarios.
In the present embodiment, the expansion interface 120 is provided with a signal recognition device capable of receiving a signal recognition command transmitted by the expansion device and specifying the type of the signal recognition command transmitted by the expansion device.
Referring to fig. 3, a connection diagram of a smart battery 100 in a multi-battery connection scenario that can embody principles of the present disclosure is representatively illustrated in fig. 3. That is, in the operation scenario of the smart battery 100 shown in fig. 3, the expansion device includes at least one smart battery 100. At this time, the signal identification command transmitted by the expansion device is the first signal identification command. The operating state parameter of the smart battery 100 is the output voltage of the smart battery 100. The operating state parameter of the expansion device is the output voltage of at least one smart battery 100 comprised by the expansion device. Accordingly, the expansion interface 120 of the smart battery 100 can send a signal identification command and an output voltage parameter of another smart battery 100 to the control unit 140. The control unit 140 can obtain the output voltage of the intelligent battery 100, and control the on/off of the charging/discharging link of the intelligent battery 100 according to the signal identification instruction and the output voltage of at least one intelligent battery 100 included in the expansion device.
In summary, when the signal identification command is the first signal identification command, at least two intelligent batteries 100 are connected in parallel, and the control unit 140 controls the on/off of the charging/discharging link of each intelligent battery 100 according to the signal identification command, the operating state parameter of the expansion device (i.e., the output voltage of at least one intelligent battery 100 included in the expansion device) and the output voltage of the intelligent battery 100, including the following: the voltage difference between the at least two smart batteries 100 is calculated according to the output voltages of the at least two smart batteries 100, and when the voltage difference is greater than or equal to a first preset voltage threshold, the control unit 140 controls the charging link of the smart battery 100 on the high output voltage side to be disconnected, the discharging link to be connected, and controls both the charging link and the discharging link of the smart battery 100 on the low output voltage side to be disconnected. When the voltage difference is smaller than the first preset voltage threshold, the control unit 140 controls the discharge links of the plurality of intelligent batteries 100 to be connected, and the charge links to be disconnected.
Further, in this embodiment, when the extension device includes at least one smart battery 100, the smart battery 100 connected to the electric device is configured as a main battery, and the control unit 140 of the main battery can obtain output voltages of at least two smart batteries 100 and control on/off of the charging/discharging links of the at least two smart batteries according to the output voltages of the at least two smart batteries 100. It should be noted that, based on the above design, the main battery may be any one of at least two smart batteries 100. Of course, in another embodiment, the control unit 140 in each smart battery 100 may perform the above calculation once, instead of providing the main battery.
Referring now to fig. 4, a connection diagram of a smart battery 100 in a charging device 200 connection scenario that can embody principles of the present disclosure is representatively illustrated in fig. 4. That is, in the operation scenario of the smart battery 100 shown in fig. 4, the expansion device includes at least one charging device 200. At this time, the signal identification command transmitted by the extension device is the second signal identification command. The operating state parameter of the smart battery 100 includes an output voltage of the smart battery 100. The operating state parameter of the expansion device includes an output voltage of the charging device 200. The on-off control of the charging and discharging link of the smart battery 100 by the control unit 140 according to the signal identification command, the output voltage of the charging device 200 and the output voltage of the smart battery 100 includes the following contents: when the output voltage of the smart battery 100 is greater than or equal to the second preset voltage threshold, the control unit 140 controls the charging link of the smart battery 100 to be disconnected and the discharging link to be connected. When the output voltage of the smart battery 100 is less than the second preset voltage threshold, the control unit 140 controls the charging link of the smart battery 100 to be connected, and the discharging link to be disconnected or connected. That is, the smart battery 100 may discharge the link while the charging device 200 is charging, and at this time, the power is not supplied to the electric device while the charging device 200 is charging; the smart battery 100 may also be connected to the discharge link while the charging device 200 is charging, and at this time, the charging device 200 is charging while supplying power to the electric device, which is not limited in this embodiment.
Further, in the present embodiment, in order to prevent the smart batteries 100 with different electric quantities from being charged with each other when being cascaded, the batteries may be configured such that the charging MOS transistor on the protection board is turned off in a default state, and the charging MOS transistor is turned on immediately when the charging device 200 is inserted into the expansion interface 120 for charging.
Further, in the present embodiment, the power supply interface 110 of the smart battery 100 and the electric device such as the drone may be preferably connected through a power supply bus.
Further, in the present embodiment, the power supply bus may preferably be an I2C bus or a UART bus.
Further, in the present embodiment, the expansion interface 120 of the smart battery 100 and the expansion device (e.g., the expansion interface 120 of another smart battery 100 or the charging interface of the charging device 200) may be preferably connected through a cascade bus.
Further, in the present embodiment, the cascade bus may preferably be a CAN bus.
Further, in the present embodiment, the smart battery 100 may further include a battery switch 130. The battery switch 130 can control the on/off of the charge/discharge link of the smart battery 100, so that an operator can manually adjust the working state of the smart battery 100, for example, when a plurality of smart batteries 100 are connected, the smart battery 100 with high electric quantity is controlled to be powered preferentially through manual operation, and all the smart batteries 100 are powered on and powered simultaneously until the electric quantity of each smart battery 100 is the same.
Further, as shown in fig. 2, in the present embodiment, when the expansion interface 120 is disposed at one end of the smart battery 100, the power supply interface 110 is preferably disposed at the other end of the smart battery 100. For example, the expansion interface 120 may be disposed at the top of the smart battery 100, and the power supply interface 110 may be disposed at the bottom of the smart battery 100. Thus, the smart battery 100 can be connected to the power-consuming device via the expansion interface 120 and the expansion device in a vertically stacked manner. It is understood that the positions of the expansion interface 120 and the power supply interface 110 in the present embodiment are only exemplary and are not limiting.
Further, as shown in fig. 2, in the present embodiment, when the power supply interface 110 is disposed at one end of the smart battery 100, the battery switch 130 is preferably disposed at the other end of the smart battery 100. For example, the power supply interface 110 may be disposed at the bottom of the smart battery 100, and the battery switch 130 may be disposed at the top of the smart battery 100. In other embodiments, the battery switch 130 may be disposed at other positions of the smart battery 100, such as a side surface.
It should be noted herein that the smart battery shown in the drawings and described in the present specification is but one example of the wide variety of smart batteries in which the principles of the present disclosure can be employed. It should be clearly understood that the principles of this disclosure are in no way limited to any of the details of the smart battery or any of the components of the smart battery shown in the drawings or described in this specification.
In summary, the intelligent battery provided in the present disclosure includes a power supply interface, an expansion interface, and a control unit. The power supply interface is connected with the electric equipment. The expansion interface is connected with an expansion device and is configured to send a signal identification command and working state parameters of the expansion device to the control unit. The control unit is configured to obtain the working state parameters of the intelligent battery, and controls the on-off of the charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery, so that the intelligent battery provided by the disclosure has an independently arranged expansion interface, a user can directly connect a plurality of independent intelligent batteries together, direct communication among a plurality of connected intelligent batteries can be realized, and the intelligent battery is suitable for various application scenes.
Further, when being applied to the application scene that a plurality of intelligent batteries are connected, this disclosure can the high intelligent battery power supply of preferred selection electric quantity, and the power supply is the same when until each intelligent battery electric quantity is the same to make this disclosure's intelligent battery can satisfy higher continuation of the journey requirement when guaranteeing power supply safety.
The embodiment of the present disclosure also discloses an unmanned aerial vehicle, which comprises the intelligent battery provided by the present disclosure. Further, in this exemplary embodiment, the unmanned aerial vehicle proposed by the present disclosure is illustrated by taking an unmanned aerial vehicle as an example. It is understood that the unmanned aerial vehicle may also be other unmanned vehicles, such as unmanned vehicles, unmanned ships, and other suitable transportation works, and the embodiment is not limited herein. Those skilled in the art will readily appreciate that various modifications, additions, substitutions, deletions, or other changes may be made to the embodiments described below in order to adapt the design of such a drone to other types of vehicles, and still fall within the scope of the principles of the drone presented in this disclosure.
In this embodiment, the unmanned aerial vehicle that this disclosure provided mainly includes organism, power unit and battery pack. Wherein the battery assembly includes at least one smart battery 100, and the smart battery 100 is the smart battery 100 proposed by the present disclosure and exemplarily illustrated in the above-described embodiment. The power supply interface 110 of the smart battery 100 is connected with the electric equipment of the unmanned aerial vehicle, and is used for supplying power to the unmanned aerial vehicle. For example, the powered device of the drone includes a power mechanism. It can be understood that unmanned aerial vehicle's consumer is not limited to power unit, can also include other consumers, for example cloud platform, cloud platform load, perception device etc. and smart battery 100 can supply power for unmanned aerial vehicle's part or whole consumer this moment. The charging and discharging processes of the intelligent battery are as described above, and are not described herein again.
It should be noted herein that the drone shown in the drawings and described in this specification is merely one example of the many types of drones that can employ the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are in no way limited to any of the details of the drone or any of the components of the drone shown in the drawings or described in this specification.
To sum up the unmanned aerial vehicle that this disclosure provided includes at least one intelligent battery through "battery pack. The design that power supply interface and power unit are connected for unmanned aerial vehicle's battery pack possesses the above-mentioned beneficial effect of the intelligent battery that this disclosure provided, thereby makes unmanned aerial vehicle when guaranteeing flight safety, can satisfy higher continuation of the journey requirement.
While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (39)

1. A control method of an intelligent battery is characterized in that the intelligent battery is respectively connected with electric equipment and an expansion device, and the control method of the intelligent battery comprises the following steps:
receiving a signal identification instruction of the intelligent battery, working state parameters of the intelligent battery and working state parameters of the expansion device;
and controlling the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction of the intelligent battery, the working state parameter of the intelligent battery and the working state parameter of the expansion device so as to control the charging and discharging of the intelligent battery.
2. The control method of the smart battery according to claim 1, further comprising the steps of:
the intelligent battery also comprises a signal identification device, and the signal identification device receives the signal identification instruction sent by the expansion device and determines the type of the signal identification instruction.
3. The control method of the smart battery according to claim 2, characterized in that:
when the expansion device comprises at least one intelligent battery, a signal identification instruction of the expansion device is a first signal identification instruction;
the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery;
the working state parameter of the expansion device comprises the output voltage of at least one intelligent battery;
the control method of the intelligent battery comprises the following steps:
receiving the first signal identification instruction, the output voltage of the intelligent battery and the output voltage of at least one intelligent battery;
and controlling the on-off of a charging and discharging link of the intelligent battery according to the first signal identification instruction, the output voltage of the intelligent battery and the output voltage of at least one intelligent battery so as to control the charging and discharging of the intelligent battery.
4. The control method of the smart battery according to claim 3, characterized in that:
when at least two intelligent batteries are connected in parallel, the control on the on-off of the charge and discharge link of the intelligent batteries comprises the following steps:
calculating the voltage difference between at least two intelligent batteries according to the output voltages of the at least two intelligent batteries;
when the voltage difference is greater than or equal to a first preset voltage threshold value, controlling a charging link and a discharging link of the intelligent battery on the high output voltage side to be disconnected, and controlling the charging link and the discharging link of the intelligent battery on the low output voltage side to be disconnected;
and when the voltage difference is smaller than the first preset voltage threshold, controlling the discharge links of the intelligent batteries to be connected and the charge links to be disconnected.
5. The control method of the smart battery according to claim 3, further comprising the steps of:
determining that the intelligent battery connected with the electric equipment is a main battery;
the main battery obtains working state parameters of at least two intelligent batteries, and controls the on-off of charge and discharge links of the at least two intelligent batteries according to the working state parameters of the at least two intelligent batteries.
6. The control method of the smart battery according to claim 2, characterized in that:
when the expansion device comprises a charging device, the signal identification instruction of the expansion device is a second signal identification instruction, the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery, and the working state parameter of the expansion device comprises the output voltage of the charging device;
the control method of the intelligent battery comprises the following steps:
receiving the second signal identification instruction, the output voltage of the intelligent battery and the output voltage of the charging device;
and controlling the on-off of a charging and discharging link of the intelligent battery according to the second signal identification instruction, the output voltage of the intelligent battery and the output voltage of the charging device so as to control the charging and discharging of the intelligent battery.
7. The control method of the smart battery according to claim 6, characterized in that:
the control of the on-off of the charging and discharging link of the intelligent battery comprises the following steps:
when the output voltage of the intelligent battery is greater than or equal to a second preset voltage threshold value, controlling a charging link of the intelligent battery to be disconnected and a discharging link to be connected;
and when the output voltage of the intelligent battery is smaller than a second preset voltage threshold value, controlling the charging link of the intelligent battery to be connected, and controlling the discharging link to be disconnected or connected.
8. The control method of the smart battery according to claim 1, characterized in that:
the power supply interface is connected with the electric equipment through a power supply bus.
9. The control method of the smart battery according to claim 8, characterized in that:
the power supply bus is an I2C bus or a UART bus.
10. The control method of the smart battery according to claim 1, characterized in that:
the expansion interface is connected with the expansion device through a cascade bus.
11. The control method of the smart battery according to claim 10, characterized in that:
the cascade bus is a CAN bus.
12. The control method of the smart battery according to claim 1, characterized in that:
the expansion interface is arranged at one end of the intelligent battery;
the power supply interface is arranged at the other end of the intelligent battery, which is opposite to the end.
13. The control method of the smart battery according to claim 1, characterized in that:
the intelligent battery is also provided with a battery switch;
the battery switch is configured to control the on-off of a charge and discharge link of the intelligent battery.
14. The utility model provides an intelligent battery for supply power to consumer, its characterized in that:
the intelligent battery comprises a power supply interface, an expansion interface and a control unit;
the power supply interface is used for being connected with the electric equipment;
the expansion interface is used for being connected with an expansion device, and the expansion interface is configured to send a signal identification instruction to the control unit and is used for sending working state parameters of the expansion device to the control unit;
the control unit is configured to acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery.
15. The smart battery of claim 14, wherein:
the extension interface is provided with a signal identification device which is configured to receive a signal identification instruction sent by the extension device and determine the type of the signal identification instruction.
16. The smart battery of claim 15, wherein:
the expansion device comprises at least one intelligent battery, and the signal identification instruction is a first signal identification instruction;
the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery;
the working state parameter of the expansion device comprises the output voltage of at least one intelligent battery.
17. The smart battery of claim 16, wherein:
the control unit controls the on-off of the charging and discharging link of each intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent batteries, and comprises the following steps:
calculating a voltage difference between at least two intelligent batteries according to output voltages of the at least two intelligent batteries, and when the voltage difference is greater than or equal to a first preset voltage threshold, controlling a charging link and a discharging link of the intelligent battery on a high output voltage side to be disconnected and controlling the charging link and the discharging link of the intelligent battery on a low output voltage side to be disconnected by the control unit;
when the voltage difference is smaller than the first preset voltage threshold, the control unit controls the discharging links of the intelligent batteries to be connected and the charging links to be disconnected.
18. The smart battery of claim 16, wherein:
the intelligent battery connected with the electric equipment is configured as a main battery, and the control unit of the main battery is configured to obtain working state parameters of at least two intelligent batteries and control the on-off of the charging and discharging links of the at least two intelligent batteries according to the working state parameters of the at least two intelligent batteries.
19. The smart battery of claim 15, wherein:
the expansion device comprises a charging device, and the signal identification instruction is a second signal identification instruction;
the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery;
the operating state parameter of the extension device comprises an output voltage of the charging device.
20. The smart battery of claim 19, wherein:
the control unit controls the on-off of the charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameter of the expansion device and the working state parameter of the intelligent battery, and comprises the following steps:
when the output voltage of the intelligent battery is greater than or equal to a second preset voltage threshold, the control unit controls a charging link of the intelligent battery to be disconnected and a discharging link of the intelligent battery to be connected;
when the output voltage of the intelligent battery is smaller than a second preset voltage threshold value, the control unit controls the charging link of the intelligent battery to be connected, and the discharging link is disconnected or connected.
21. The smart battery of claim 14, wherein:
the power supply interface is connected with the electric equipment through a power supply bus.
22. The smart battery of claim 21, wherein:
the power supply bus is an I2C bus or a UART bus.
23. The smart battery of claim 14, wherein:
the expansion interface is connected with the expansion device through a cascade bus.
24. The smart battery of claim 23, wherein:
the cascade bus is a CAN bus.
25. The smart battery of claim 14, wherein:
the expansion interface is arranged at one end of the intelligent battery;
the power supply interface is arranged at the other end of the intelligent battery, which is opposite to the end.
26. The smart battery of claim 14, wherein:
the intelligent battery is also provided with a battery switch;
the battery switch is configured to control the on-off of a charge and discharge link of the intelligent battery.
27. The utility model provides an unmanned aerial vehicle, includes organism and power unit, its characterized in that:
the unmanned aerial vehicle further comprises a battery assembly, wherein the battery assembly comprises at least one intelligent battery;
the intelligent battery comprises a power supply interface, an expansion interface and a control unit;
the power supply interface is used for being connected with electric equipment of the unmanned aerial vehicle;
the expansion interface is used for being connected with an expansion device, and the expansion interface is configured to send a signal identification instruction to the control unit and is used for sending working state parameters of the expansion device to the control unit;
the control unit is configured to acquire the working state parameters of the intelligent battery and control the on-off of a charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent battery.
28. A drone according to claim 27, characterised in that:
the extension interface is provided with a signal identification device which is configured to receive a signal identification instruction sent by the extension device and determine the type of the signal identification instruction.
29. A drone according to claim 28, characterised in that:
the expansion device comprises at least one intelligent battery, and the signal identification instruction is a first signal identification instruction;
the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery;
the working state parameter of the expansion device comprises the output voltage of at least one intelligent battery.
30. A drone according to claim 29, characterised in that:
the control unit controls the on-off of the charging and discharging link of each intelligent battery according to the signal identification instruction, the working state parameters of the expansion device and the working state parameters of the intelligent batteries, and comprises the following steps:
calculating a voltage difference between at least two intelligent batteries according to output voltages of the at least two intelligent batteries, and when the voltage difference is greater than or equal to a first preset voltage threshold, controlling a charging link and a discharging link of the intelligent battery on a high output voltage side to be disconnected and controlling the charging link and the discharging link of the intelligent battery on a low output voltage side to be disconnected by the control unit;
when the voltage difference is smaller than the first preset voltage threshold, the control unit controls the discharging links of the intelligent batteries to be connected and the charging links to be disconnected.
31. A drone according to claim 29, characterised in that:
the intelligent battery connected with the electric equipment is configured as a main battery, and the control unit of the main battery is configured to obtain working state parameters of at least two intelligent batteries and control the on-off of the charging and discharging links of the at least two intelligent batteries according to the working state parameters of the at least two intelligent batteries.
32. A drone according to claim 28, characterised in that:
the expansion device comprises a charging device, and the signal identification instruction is a second signal identification instruction;
the working state parameter of the intelligent battery comprises the output voltage of the intelligent battery;
the operating state parameter of the extension device comprises an output voltage of the charging device.
33. A drone according to claim 32, characterised in that:
the control unit controls the on-off of the charging and discharging link of the intelligent battery according to the signal identification instruction, the working state parameter of the expansion device and the working state parameter of the intelligent battery, and comprises the following steps:
when the output voltage of the intelligent battery is greater than or equal to a second preset voltage threshold, the control unit controls a charging link of the intelligent battery to be disconnected and a discharging link of the intelligent battery to be connected;
when the output voltage of the intelligent battery is smaller than a second preset voltage threshold value, the control unit controls the charging link of the intelligent battery to be connected, and the discharging link is disconnected or connected.
34. A drone according to claim 27, characterised in that:
the power supply interface is connected with the electric equipment through a power supply bus.
35. A drone according to claim 34, characterised in that:
the power supply bus is an I2C bus or a UART bus.
36. A drone according to claim 27, characterised in that:
the expansion interface is connected with the expansion device through a cascade bus.
37. A drone according to claim 36, characterised in that:
the cascade bus is a CAN bus.
38. A drone according to claim 27, characterised in that:
the expansion interface is arranged at one end of the intelligent battery;
the power supply interface is arranged at the other end of the intelligent battery, which is opposite to the end.
39. A drone according to claim 27, characterised in that:
the intelligent battery is also provided with a battery switch;
the battery switch is configured to control the on-off of a charge and discharge link of the intelligent battery.
CN201880041278.XA 2018-08-01 2018-08-01 Control method of intelligent battery, intelligent battery and unmanned aerial vehicle Pending CN110785909A (en)

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