Mobile power supply management method and system

Abstract

The invention discloses a mobile power supply management method and system, and relates to the technical field of mobile power supplies, and the system comprises an electric energy detection module which detects the difference between a first battery module, a second battery module and a third battery module in different series power supply states and the required output voltage. Then whether the voltage difference value between the input voltage and the output voltage is larger than a set voltage difference threshold value or not is judged, and when the voltage difference value is larger than the set voltage difference threshold value, the two-way adjusting module is matched with the micro-control module to automatically select the battery modules for series power supply; and meanwhile, the equalization adjustment module performs equalization voltage adjustment control on the first battery module, the second battery module and the third battery module to maintain equalization discharging and equalization charging of the first battery module, the second battery module and the third battery module. The mobile power supply management method and system can reduce the electric energy loss of electronic components in the mobile power supply, improve the power supply efficiency of the mobile power supply, and prolong the service life of the mobile power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile power supplies, and specifically to a mobile power supply management method and system. Background Art

[0002] The types of electrical equipment are increasing, and the power consumption scenarios are constantly expanding. Mobile power supplies (or portable power supplies) are used more and more widely and frequently. Mobile power supplies can solve the charging problems of electrical equipment such as outdoor equipment and portable electronic products. For different power consumption scenarios, different battery capacities and discharge power requirements are needed for mobile power supplies. In the prior art, to meet different power consumption scenarios, a Buck circuit is generally used, and the output voltage is adjusted by controlling the on and off of a switching tube. However, when the voltage difference between the input voltage and the output voltage of the Buck circuit is large, it is easy to increase the working losses of the switching tube and the diode, reduce the power supply efficiency of the mobile power supply, and when the mobile power supply is charging, the voltage is prone to be unbalanced, reducing the service life of the mobile power supply. Therefore, improvement is needed. Summary of the Invention

[0003] Embodiments of the present invention provide a mobile power supply management method and system to solve the problems raised in the above background art.

[0004] According to an embodiment of the present invention, a mobile power supply management system is provided, including: a first battery module, a second battery module, a third battery module, a power detection module, a micro-control module, an equalization adjustment module, and a bidirectional adjustment module; The bidirectional adjustment module is connected to the micro-control module, the first battery module, the second battery module, and the third battery module, and is used for, when receiving a first adjustment signal output by the micro-control module, performing power adjustment on the accessed DC power and outputting first electric energy, and when receiving a second adjustment signal, a third adjustment signal, or a fourth adjustment signal output by the micro-control module, respectively performing power adjustment on the electric energy released by the series connection of the first battery module, the second battery module, and the third battery module, the electric energy released by the series connection of the second battery module and the third battery module, or the electric energy released by the third battery module and outputting; The first battery module is used for receiving and storing the first electric energy and releasing the stored electric energy; The second battery module is connected to the first battery module and the equalization adjustment module, and is used for performing series energy storage and discharge with the first battery module, receiving and storing the second electric energy output by the equalization adjustment module, and releasing the stored electric energy; The third battery module is connected to the second battery module and the equalization adjustment module, and is used for performing series energy storage and discharge with the second battery module, receiving and storing the third electric energy output by the equalization adjustment module, and releasing the stored electric energy; The power detection module is connected to the first detection module, the second detection module, and the third detection module, and is used to perform series voltage sampling on the first battery module, the second battery module, and the third battery module and output a first sampling signal, perform series voltage sampling on the second battery module and the third battery module and output a second sampling signal, perform subtraction processing on the first sampling signal and the second sampling signal respectively with a set output voltage threshold, and output a first difference signal and a second difference signal respectively. When the first difference signal or the second difference signal is greater than the set voltage difference threshold, output a first detection signal or a second detection signal respectively; The micro-control module is connected to the power detection module, and is used to output a first adjustment signal and an equalization adjustment signal during the charging process, output a second adjustment signal when the first detection signal is not received during the discharging process, output a third adjustment signal when only the first detection signal is received, and output a fourth adjustment signal when the first detection signal and the second detection signal are received; The equalization adjustment module is connected to the micro-control module, the first battery module, and the bidirectional adjustment module, and is used to receive the first electric energy and provide the second electric energy and the third electric energy and control the voltage equalization of the first battery module, the second battery module, and the third battery module when the equalization adjustment signal is received.

[0005] As a further solution of the present invention: The bidirectional adjustment module includes a power port, a first capacitor, a fourth inductor, a first power transistor, a second power transistor, a first diode, a third power transistor, a second diode, and a fourth power transistor; The micro-control module includes a first controller; Preferably, the first end of the power port is connected to one end of the first capacitor and is connected to the drain of the second power transistor, the source of the first power transistor, the cathode of the first diode, and the cathode of the second diode through the fourth inductor. The drain of the first power transistor is connected to the first battery module and the equalization adjustment module. The drain of the third power transistor is connected to the second battery module. The drain of the fourth power transistor is connected to the third battery module. The source of the second power transistor is connected to the other end of the first capacitor, the second end of the power port, and the ground terminal. The gates of the first power transistor, the second power transistor, the third power transistor, and the fourth power transistor are respectively connected to the IO1 terminal, the IO2 terminal, the IO3 terminal, and the IO4 terminal of the first controller.

[0006] As a further solution of the present invention: The first battery module includes a first battery pack; The second battery module includes a second battery pack; The third battery module includes a third battery pack; Preferably, the first end of the first battery pack is connected to the drain of the first power transistor. The second end of the first battery pack is connected to the first end of the second battery pack and the drain of the third power transistor. The second end of the second battery pack is connected to the first end of the third battery pack and the drain of the fourth power transistor. The second end of the third battery pack is connected to the second end of the power port.

[0007] As a further solution of the present invention: The balance adjustment module includes a seventh power transistor, a first inductor, a fourth diode, a second inductor, a fifth power transistor, a fifth diode, a sixth power transistor, a third inductor, and a third diode; Preferably, the drain of the seventh power transistor is connected to the first end of the first battery pack and the cathode of the third diode. The source of the seventh power transistor is connected to the cathode of the fourth diode and is connected to the second end of the first battery pack and the first end of the second inductor through the first inductor. The other end of the second inductor is connected to the anode of the fourth diode, the cathode of the fifth diode, and the drain of the fifth power transistor. The source of the fifth power transistor is connected to the first end of the third battery pack and the drain of the sixth power transistor. The source of the sixth power transistor is connected to the second end of the third battery pack, the anode of the fifth diode, and the anode of the third diode through the third inductor. The IO5 terminal, IO6 terminal, and I07 terminal of the first controller are respectively connected to the IO5 terminal, IO6 terminal, and IO7 terminal of the first controller.

[0008] As a further solution of the present invention: The electric energy detection module includes a first resistor, a second resistor, a first subtractor, a first power supply, a seventh resistor, a first potentiometer, an eighth resistor, a tenth resistor, and a sixth diode; Preferably, one end of the first resistor is connected to the first end of the first battery pack. The other end of the first resistor is connected to the first input terminal of the first subtractor and is connected to one end of the eighth resistor and the second end of the third battery pack through the second resistor. The second input terminal of the first subtractor is connected to the first end of the first potentiometer and is connected to the first power supply through the seventh resistor. The second end and the sliding terminal of the first potentiometer are both connected to the other end of the eighth resistor. The output terminal of the first subtractor is connected to the cathode of the sixth diode through the tenth resistor. The anode of the sixth diode is connected to the IO8 terminal of the first controller.

[0009] As a further solution of the present invention: The electric energy detection module further includes a third resistor, a fourth resistor, a second subtractor, a ninth resistor, and a seventh diode; Preferably, the first input terminal of the second subtractor is connected to one end of the fourth resistor and is connected to the first end of the second battery pack through the third resistor. The other end of the fourth resistor is connected to the second end of the third battery pack. The second input terminal of the second subtractor is connected to the first end of the first potentiometer. The output terminal of the second subtractor is connected to the cathode of the seventh diode through the ninth resistor. The anode of the seventh diode is connected to the IO9 terminal of the first controller.

[0010] In addition, to achieve the above object, the present invention also proposes a mobile power management method, which is applied to the mobile power management system as described above. The steps of the method include: Preferably, the voltage information of the first battery module, the second battery module, and the third battery module connected in series is obtained in real time, and the voltage information of the second battery module and the third battery module connected in series is obtained; According to the acquired information, calculate the voltage differences between the two sets of voltage information and the required output voltage, and the voltage magnitudes between the obtained differences and the set voltage difference threshold; According to the voltage magnitudes between the differences and the voltage difference threshold, control the series discharge states of the first battery module, the second battery module, and the third battery module, perform isolation regulation by the bidirectional regulation module, and perform balanced discharge regulation and balanced charge regulation by the balanced regulation module.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The mobile power management method and system of the present invention can detect the differences between the first battery module, the second battery module, and the third battery module and the required output voltage in different series power supply states by the power detection module, and then determine whether the voltage difference between the input voltage and the output voltage is greater than the set voltage difference threshold. When it is greater, the bidirectional regulation module cooperates with the micro-control module to automatically select the battery module for series power supply, thereby reducing the power loss of the electronic components in the mobile power supply and improving the power supply efficiency of the mobile power supply. At the same time, the balanced regulation module performs balanced voltage regulation control on the first battery module, the second battery module, and the third battery module to maintain the balanced discharge and balanced charge of the first battery module, the second battery module, and the third battery module, and improve the service life of the mobile power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0013] Figure 1 It is a schematic block diagram of the principle of a mobile power management system provided by an embodiment of the present invention.

[0014] Figure 2 It is a circuit diagram of a mobile power management system provided by an embodiment of the present invention.

[0015] Figure 3 It is a circuit diagram of the power detection module provided by an embodiment of the present invention.

[0016] Figure 4 It is a schematic flow chart of the mobile power management method provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] In one embodiment, please refer to Figure 1 , a mobile power management system, including: a first battery module 1, a second battery module 2, a third battery module 3, a power detection module 4, a micro-control module 5, an equalization adjustment module 6, and a bidirectional adjustment module 7; Specifically, the bidirectional adjustment module 7 is connected to the micro-control module 5, the first battery module 1, the second battery module 2, and the third battery module 3, and is configured to perform power adjustment on the input DC power and output the first electric energy when receiving the first adjustment signal output by the micro-control module 5, and perform power adjustment on the electric energy released by the series connection of the first battery module 1, the second battery module 2, and the third battery module 3, the electric energy released by the series connection of the second battery module 2 and the third battery module 3, or the electric energy released by the third battery module 3 and output when receiving the second adjustment signal, the third adjustment signal, or the fourth adjustment signal output by the micro-control module 5; The first battery module 1 is configured to receive and store the first electric energy and release the stored electric energy; The second battery module 2 is connected to the first battery module 1 and the equalization adjustment module 6, and is configured to perform series energy storage and discharge with the first battery module 1, receive and store the second electric energy output by the equalization adjustment module 6, and release the stored electric energy; The third battery module 3 is connected to the second battery module 2 and the equalization adjustment module 6, and is configured to perform series energy storage and discharge with the second battery module 2, receive and store the third electric energy output by the equalization adjustment module 6, and release the stored electric energy; The power detection module 4 is connected to the first detection module, the second detection module, and the third detection module, and is configured to perform series voltage sampling on the first battery module 1, the second battery module 2, and the third battery module 3 and output the first sampling signal, perform series voltage sampling on the second battery module 2 and the third battery module 3 and output the second sampling signal, perform subtraction processing on the first sampling signal and the second sampling signal respectively with a set output voltage threshold, and output the first difference signal and the second difference signal respectively, and output the first detection signal or the second detection signal when the first difference signal or the second difference signal is greater than the set voltage difference threshold; The micro-control module 5, connected to the power detection module 4, is configured to output a first adjustment signal and an equalization adjustment signal during the charging process. During the discharging process, when the first detection signal is not received, it outputs a second adjustment signal; when only the first detection signal is received, it outputs a third adjustment signal; when the first detection signal and the second detection signal are received, it outputs a fourth adjustment signal. The equalization adjustment module 6, connected to the micro-control module 5, the first battery module 1, and the bidirectional adjustment module 7, is configured to receive the first electric energy and, when receiving the equalization adjustment signal, provide the second electric energy and the third electric energy and control the voltage equalization of the first battery module 1, the second battery module 2, and the third battery module 3.

[0019] In a specific embodiment, the above-mentioned first battery module 1 can adopt a first battery circuit composed of a battery pack for energy storage and discharge; the second battery module 2 can adopt a second battery circuit composed of a battery pack for energy storage and discharge; the third battery module 3 can adopt a third battery circuit composed of a battery pack for energy storage and discharge; the power detection module 4 can adopt a power detection circuit composed of resistors, diodes, subtractors, etc., which can perform voltage sampling on the first battery module 1, the second battery module 2, and the third battery module 3 in series or the second battery module 2 and the third battery module 3 in series and calculate the voltage difference with a set voltage threshold, and compare the voltage magnitude of the voltage difference with the set voltage difference threshold. This voltage threshold is the required output voltage, and the voltage difference threshold is obtained by voltage division when the first battery module 1, the second battery module 2, or the third battery module 3 is fully charged; the micro-control module 5 can adopt a micro-control circuit composed of a single-chip microcomputer, integrating many components such as an arithmetic unit, a controller, a memory, and an input / output unit, to realize functions such as signal processing, data storage, module control, and timing control; the equalization adjustment module 6 can adopt an equalization adjustment circuit composed of field effect transistors, inductors, and diodes, which can realize the equalization charging and equalization discharging control of the first battery module 1, the second battery module 2, and the third battery module 3; the bidirectional adjustment module 7 can adopt a bidirectional adjustment circuit composed of field effect transistors, inductors, power ports, etc., to perform two-way power adjustment of electric energy and control the discharging state of the first battery module 1, the second battery module 2, or the third battery module 3.

[0020] In another embodiment, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the bidirectional adjustment module 7 includes a power port, a first capacitor C1, a fourth inductor L4, a first power transistor, a second power transistor Q2, a first diode D1, a third power transistor Q3, a second diode D2, and a fourth power transistor Q4; the micro-control module 5 includes a first controller U1. Specifically, the first end of the power port is connected to one end of the first capacitor C1 and is connected to the drain of the second power transistor Q2, the source of the first power transistor, the cathode of the first diode D1, and the cathode of the second diode D2 through the fourth inductor L4. The drain of the first power transistor is connected to the first battery module 1 and the equalization adjustment module 6. The drain of the third power transistor Q3 is connected to the second battery module 2. The drain of the fourth power transistor Q4 is connected to the third battery module 3. The source of the second power transistor Q2 is connected to the other end of the first capacitor C1, the second end of the power port, and the ground terminal. The gates of the first power transistor, the second power transistor Q2, the third power transistor Q3, and the fourth power transistor Q4 are respectively connected to the IO1 terminal, the IO2 terminal, the IO3 terminal, and the IO4 terminal of the first controller U1.

[0021] In a specific embodiment, the above-mentioned first power transistor, third power transistor Q3, fourth power transistor Q4, and second power transistor Q2 can all be selected as N-channel field effect transistors. Among them, the first power transistor, third power transistor Q3, and fourth power transistor Q4 can respectively perform buck control, and the second power transistor Q2 can perform boost control. The above-mentioned first controller U1 can be selected as an STM32 single-chip microcomputer.

[0022] Further, the first battery module 1 includes a first battery pack; the second battery module 2 includes a second battery pack; the third battery module 3 includes a third battery pack; Specifically, the first end of the first battery pack is connected to the drain of the first power transistor. The second end of the first battery pack is connected to the first end of the second battery pack and the drain of the third power transistor Q3. The second end of the second battery pack is connected to the first end of the third battery pack and the drain of the fourth power transistor Q4. The second end of the third battery pack is connected to the second end of the power port.

[0023] In a specific embodiment, the above-mentioned first battery pack, second battery pack, and third battery pack can all be selected as storage batteries, and the battery voltages are equal.

[0024] Further, the equalization adjustment module 6 includes a seventh power transistor Q7, a first inductor L1, a fourth diode D4, a second inductor L2, a fifth power transistor Q5, a fifth diode D5, a sixth power transistor D6, a third inductor L3, and a third diode D3; Specifically, the drain of the seventh power transistor Q7 is connected to the first end of the first battery pack and the cathode of the third diode D3. The source of the seventh power transistor Q7 is connected to the cathode of the fourth diode D4 and is connected to the second end of the first battery pack and the first end of the second inductor L2 through the first inductor L1. The other end of the second inductor L2 is connected to the anode of the fourth diode D4, the cathode of the fifth diode D5, and the drain of the fifth power transistor Q5. The source of the fifth power transistor Q5 is connected to the first end of the third battery pack and the drain of the sixth power transistor D6. The source of the sixth power transistor D6 is connected to the second end of the third battery pack, the anode of the fifth diode D5, and the anode of the third diode D3 through the third inductor L3. The IO5 terminal, IO6 terminal, and I07 terminal of the first controller U1 are respectively connected to the IO5 terminal, IO6 terminal, and IO7 terminal of the first controller U1.

[0025] In a specific embodiment, the above-mentioned seventh power transistor Q7, fifth power transistor Q5, and sixth power transistor D6 can all be selected as N-channel field effect transistors; the above-mentioned first inductor L1, second inductor L2, and third inductor L3 can store energy and respectively control the voltage balance of the second battery pack, third battery pack, and first battery pack.

[0026] Furthermore, the electric energy detection module 4 includes a first resistor R1, a second resistor R2, a first subtractor, a first power supply, a seventh resistor R7, a first potentiometer, an eighth resistor R8, a tenth resistor R10, and a sixth diode D6; Specifically, one end of the first resistor R1 is connected to the first end of the first battery pack. The other end of the first resistor R1 is connected to the first input terminal of the first subtractor and is connected to one end of the eighth resistor R8 and the second end of the third battery pack through the second resistor R2. The second input terminal of the first subtractor is connected to the first end of the first potentiometer and is connected to the first power supply through the seventh resistor R7. The second end and the sliding terminal of the first potentiometer are both connected to the other end of the eighth resistor R8. The output terminal of the first subtractor is connected to the cathode of the sixth diode D6 through the tenth resistor R10. The anode of the sixth diode D6 is connected to the IO8 terminal of the first controller U1.

[0027] In a specific embodiment, the above-mentioned first resistor R1 and second resistor R2, third resistor R3 and fourth resistor R4 all perform voltage sampling; the above-mentioned first power supply, seventh resistor R7, first potentiometer, and eighth resistor R8 set a voltage threshold; the above-mentioned first subtractor can be composed of an operational amplifier and a resistor, and the voltage at the first input terminal of the first subtractor subtracts the voltage at the second input terminal; the above-mentioned tenth resistor R10 and sixth diode D6 set a voltage difference threshold.

[0028] Furthermore, the electric energy detection module 4 further includes a third resistor R3, a fourth resistor R4, a second subtractor, a ninth resistor R9, and a seventh diode D7; Specifically, the first input terminal of the second subtractor is connected to one end of the fourth resistor R4 and is connected to the first end of the second battery pack through the third resistor R3. The other end of the fourth resistor R4 is connected to the second end of the third battery pack. The second input terminal of the second subtractor is connected to the first end of the first potentiometer. The output terminal of the second subtractor is connected to the cathode of the seventh diode D7 through the ninth resistor R9. The anode of the seventh diode D7 is connected to the IO9 terminal of the first controller U1.

[0029] In a specific embodiment, the second subtractor may be composed of an operational amplifier and resistors. The voltage at the first input terminal of the second subtractor subtracts the voltage at the second input terminal. The ninth resistor R9 and the seventh diode D7 set the voltage difference threshold.

[0030] The present invention also provides a mobile power management method. The method is applied to the mobile power management system as described above. The steps of the method include: Specifically, S100: Obtain the voltage information of the first battery module 1, the second battery module 2, and the third battery module connected in series in real time, and obtain the voltage information of the second battery module 2 and the third battery module connected in series. S200: According to the obtained information, calculate the voltage differences between the two sets of voltage information and the required output voltage, and the voltage magnitudes between the obtained differences and the set voltage difference threshold. S300: According to the voltage magnitudes between the differences and the voltage difference threshold, control the series discharge states of the first battery module 1, the second battery module 2, and the third battery module. The bidirectional adjustment module 7 performs isolation adjustment, and the equalization adjustment module 6 performs equalization discharge adjustment and equalization charge adjustment.

[0031] In a mobile power management system according to this embodiment, during the discharging operation, the first resistor R1 and the second resistor R2 sample the voltages of the first battery pack, the second battery pack, and the third battery pack in series and output a first sampling signal. The first power supply, the seventh resistor R7, the eighth resistor R8, and the first potentiometer set a voltage threshold. The first subtractor performs a subtraction operation on the first sampling signal and the voltage threshold and outputs a first difference signal. Similarly, the third resistor R3 and the fourth resistor R4 sample the voltages of the second battery pack and the third battery pack in series, and the second subtractor performs a subtraction operation and outputs a second difference signal. When the first difference signal is not greater than the voltage difference threshold set by the tenth resistor R10 and the sixth diode D6, the IO1 terminal of the first controller U1 outputs a second adjustment signal to control the conduction state of the first power transistor, and cooperates with the fourth inductor L4, the first capacitor C1, and the second power transistor Q2 to perform buck regulation and receive power from the power port. When the first difference signal is greater than the voltage difference threshold and the second difference signal is not greater than the voltage difference threshold, the IO3 terminal of the first controller U1 outputs a third adjustment signal to control the conduction state of the third power transistor Q3 for buck regulation. Similarly, when the second difference signal is greater than the voltage difference threshold, the IO4 terminal of the first controller U1 outputs a fourth adjustment signal to control the fourth power transistor Q4 to perform buck operation. When the discharging operation stops and no DC power is connected to the power port, the IO7 terminal, the IO5 terminal, or the IO6 terminal of the first controller U1 outputs an equalization adjustment signal to control the conduction states of the seventh power transistor Q7, the fifth power transistor Q5, and the sixth power transistor D6 respectively, and then the first inductor L1, the second inductor L2, or the third inductor L3 stores and discharges energy to complete the charging control of the second battery pack, the third battery pack, or the first battery pack, realizing the voltage equalization of the second battery pack, the third battery pack, and the first battery pack. When DC power is connected to the power port, the charging operation starts. The IO2 terminal of the first controller U1 outputs a first adjustment signal to control the conduction of the second power transistor Q2, and approves the boost regulation process of the first capacitor C1, the fourth inductor L4, and the first power transistor, and then controls the charging of the first battery pack, the second battery pack, and the third battery pack in series. At the same time, the IO7 terminal, the IO5 terminal, or the IO6 terminal of the first controller U1 outputs an equalization adjustment signal to complete the equalization charging control of the second battery pack, the third battery pack, or the first battery pack.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0033] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mobile power management system, characterized in that: The mobile power management system includes: a first battery module, a second battery module, a third battery module, an electric energy detection module, a microcontroller module, a balancing adjustment module and a bidirectional adjustment module; The bidirectional regulation module is connected to the microcontrol module, the first battery module, the second battery module and the third battery module, and is used to perform power regulation on the connected DC power and output the first power when receiving the first regulation signal output by the microcontrol module, and to perform power regulation and output respectively the power released by the first battery module, the second battery module and the third battery module in series, the power released by the second battery module and the third battery module in series, or the power released by the third battery module when receiving the second regulation signal, the third regulation signal or the fourth regulation signal output by the microcontrol module; The first battery module is used to receive and store first electrical energy and release the stored electrical energy; The second battery module is connected to the first battery module and the balancing and regulating module, and is used to store and discharge energy in series with the first battery module, receive and store the second electric energy output by the balancing and regulating module, and release the stored electric energy; The third battery module is connected to the second battery module and the balancing and regulating module, and is used to store and discharge energy in series with the second battery module, receive and store the third electric energy output by the balancing and regulating module, and release the stored electric energy; The electric energy detection module is connected to the first detection module, the second detection module and the third detection module, and is used to perform series voltage sampling on the first battery module, the second battery module and the third battery module and output a first sampling signal, perform series voltage sampling on the second battery module and the third battery module and output a second sampling signal, perform subtraction processing on the first sampling signal and the second sampling signal from the set output voltage threshold, and output a first difference signal and a second difference signal respectively, and output the first detection signal or the second detection signal respectively when the first difference signal or the second difference signal is greater than the set voltage difference threshold; The microcontrol module is connected to the electric energy detection module, and is used to output a first adjustment signal and a balance adjustment signal during the charging process, and output a second adjustment signal when the first detection signal is not received during the discharging process, output a third adjustment signal when only the first detection signal is received, and output a fourth adjustment signal when the first detection signal and the second detection signal are received; The balancing and regulating module is connected to the microcontroller module, the first battery module and the bidirectional regulating module, and is used to receive the first electric energy and, when receiving the balancing and regulating signal, provide the second electric energy and the third electric energy and control the voltage balancing of the first battery module, the second battery module and the third battery module.

2. A mobile power management system according to claim 1, characterized in that: The bidirectional regulation module includes an electric energy port, a first capacitor, a fourth inductor, a first power tube, a second power tube, a first diode, a third power tube, a second diode and a fourth power tube; the microcontroller module includes a first controller; The first end of the power port is connected to one end of the first capacitor and is connected to the drain of the second power tube, the source of the first power tube, the cathode of the first diode and the cathode of the second diode through the fourth inductor. The drain of the first power tube is connected to the first battery module and the balancing adjustment module. The drain of the third power tube is connected to the second battery module. The drain of the fourth power tube is connected to the third battery module. The source of the second power tube is connected to the other end of the first capacitor, the second end of the power port and the ground. The gate of the first power tube, the gate of the second power tube, the gate of the third power tube and the gate of the fourth power tube are respectively connected to the IO1 end, the IO2 end, the IO3 end and the IO4 end of the first controller.

3. A mobile power management system according to claim 2, characterized in that: The first battery module includes a first battery group; the second battery module includes a second battery group; the third battery module includes a third battery group; The first end of the first battery group is connected to the drain of the first power tube, the second end of the first battery group is connected to the first end of the second battery group and the drain of the third power tube, the second end of the second battery group is connected to the first end of the third battery group and the drain of the fourth power tube, and the second end of the third battery group is connected to the second end of the power port.

4. A mobile power management system according to claim 3, characterized in that: The balance adjustment module includes a seventh power tube, a first inductor, a fourth diode, a second inductor, a fifth power tube, a fifth diode, a sixth power tube, a third inductor and a third diode; The drain of the seventh power tube is connected to the first end of the first battery group and the cathode of the third diode, the source of the seventh power tube is connected to the cathode of the fourth diode and connected to the second end of the first battery group and the first end of the second inductor through the first inductor, the other end of the second inductor is connected to the anode of the fourth diode, the cathode of the fifth diode and the drain of the fifth power tube, the source of the fifth power tube is connected to the first end of the third battery group and the drain of the sixth power tube, the source of the sixth power tube is connected to the second end of the third battery group, the anode of the fifth diode and the anode of the third diode through the third inductor, and the IO5 end, IO6 end and IO7 end of the first controller are respectively connected to the IO5 end, IO6 end and IO7 end of the first controller.

5. A mobile power management system according to claim 4, characterized in that: The electric energy detection module includes a first resistor, a second resistor, a first subtractor, a first power supply, a seventh resistor, a first potentiometer, an eighth resistor, a tenth resistor and a sixth diode; One end of the first resistor is connected to the first end of the first battery pack, the other end of the first resistor is connected to the first input end of the first subtractor and is connected to one end of the eighth resistor and the second end of the third battery pack through the second resistor, the second input end of the first subtractor is connected to the first end of the first potentiometer and is connected to the first power supply through the seventh resistor, the second end and the slider end of the first potentiometer are both connected to the other end of the eighth resistor, the output end of the first subtractor is connected to the cathode of the sixth diode through the tenth resistor, and the anode of the sixth diode is connected to the IO8 end of the first controller.

6. A mobile power management system according to claim 5, characterized in that: The electric energy detection module also includes a third resistor, a fourth resistor, a second subtractor, a ninth resistor and a seventh diode; The first input end of the second subtractor is connected to one end of the fourth resistor and connected to the first end of the second battery pack through the third resistor, the other end of the fourth resistor is connected to the second end of the third battery pack, the second input end of the second subtractor is connected to the first end of the first potentiometer, the output end of the second subtractor is connected to the cathode of the seventh diode through the ninth resistor, and the anode of the seventh diode is connected to the IO9 end of the first controller.

7. A mobile power management method, characterized in that: The method is applied to the mobile power management system according to any one of claims 1 to 6, and the steps of the method include: Real-time acquisition of voltage information of the first battery module, the second battery module and the third battery module connected in series, and acquisition of voltage information of the second battery module and the third battery module connected in series; According to the acquired information, the voltage difference between the two sets of voltage information and the required output voltage and the voltage magnitude between the obtained difference and the set voltage difference threshold are calculated; According to the voltage magnitude of the difference and the voltage difference threshold, the first battery module, the second battery module and the third battery module are controlled to be in series discharge state, the bidirectional regulation module performs isolation regulation, and the balanced regulation module performs balanced discharge regulation and balanced charge regulation.

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