CN119675210A

CN119675210A - Dual battery charge and discharge management method and system, storage medium

Info

Publication number: CN119675210A
Application number: CN202411574104.3A
Authority: CN
Inventors: 刘建德; 贾承晖; 江颐兵; 伍星果
Original assignee: Shenzhen Consys Technology Co ltd
Current assignee: Shenzhen Consys Technology Co ltd
Priority date: 2024-11-06
Filing date: 2024-11-06
Publication date: 2025-03-21

Abstract

The embodiment of the application provides a double-battery charge and discharge management method and system and a storage medium, and belongs to the technical field of battery management. The double-battery charge-discharge management system comprises portable electronic equipment, an electronic adapter, a control and detection circuit, a first charge-discharge circuit and a first battery, wherein the controller is electrically connected with the first charge-discharge circuit and the first battery, the control and detection circuit is electrically connected with the second charge-discharge circuit and the second battery, the controller is detachably electrically connected with the control and detection circuit, the first charge-discharge circuit is detachably electrically connected with the second charge-discharge circuit, the control and detection circuit is used for determining the battery state of the second battery according to the battery state of the first battery, and the second battery is used for supplying power to the controller through the second charge-discharge circuit and the first charge-discharge circuit when the battery state of the second battery is in a discharge state. The embodiment of the application can prolong the working time of the portable electronic equipment.

Description

Dual battery charge and discharge management method and system, and storage medium

Technical Field

The present application relates to the field of battery management technologies, and in particular, to a dual-battery charge and discharge management method and system, and a storage medium.

Background

A portable electronic device is a portable, miniaturized electronic device that can be used with or without an external power source. For example, the portable electronic device includes a mobile phone and a tablet computer, the tablet computer can be a vehicle-mounted tablet computer, and the vehicle-mounted tablet computer can be connected to a vehicle-mounted power supply in a vehicle for use or can be independently used outside the vehicle. The current portable electronic equipment has the advantages of fast power consumption, short continuous working time and difficult independent use without being connected with a power supply for a long time. For example, in an application scenario of field work (e.g., data collection and analysis in the field), the continuous work of the onboard tablet computer alone outside the vehicle is typically no more than 2-3 hours, and the user may need to interrupt the work to return to the vehicle to charge the onboard tablet computer, which affects the user experience.

Therefore, how to extend the continuous operation time of the portable electronic device is a technical problem to be solved.

Disclosure of Invention

The embodiment of the application mainly aims to provide a double-battery charge and discharge management method and system and a storage medium, and aims to prolong the continuous working time of portable electronic equipment.

To achieve the above object, a first aspect of an embodiment of the present application provides a dual battery charge and discharge management system, the system including:

The portable electronic device comprises a controller, a first charge-discharge circuit and a first battery, wherein the controller is electrically connected with the first charge-discharge circuit and the first battery, and the first charge-discharge circuit is electrically connected with the first battery;

The electronic adapter comprises a control and detection circuit, a second charge and discharge circuit and a second battery, wherein the control and detection circuit is electrically connected with the second charge and discharge circuit and the second battery, and the second charge and discharge circuit is electrically connected with the second battery;

the controller is detachably and electrically connected with the control and detection circuit, and the first charge and discharge circuit is detachably and electrically connected with the second charge and discharge circuit;

The control and detection circuit is used for determining the battery state of a second battery according to the battery state of a first battery, and the second battery is used for supplying power to the controller through the second charge and discharge circuit and the first charge and discharge circuit when the battery state of the second battery is the discharge state.

In some embodiments, the first charge-discharge circuit is detachably and electrically connected to a vehicle-mounted power supply;

The vehicle-mounted power supply is used for supplying power to the controller, the controller is further used for determining that the battery state of the first battery is a charging state in response to the first charging and discharging circuit being electrically connected with the vehicle-mounted power supply, and the control and detection circuit is further used for determining that the on-off state of the second charging and discharging circuit is a disconnection state in response to the battery state of the first battery being the charging state so as to disconnect the second battery from the vehicle-mounted power supply.

In some embodiments, the controller includes a first control chip and a first voltage detection circuit;

the first control chip is electrically connected with the first voltage detection circuit, the first battery and the first charge-discharge circuit;

The first control chip is used for detecting the battery state of the first battery and controlling the on-off state of the first charge-discharge circuit to update the battery state of the first battery, and the first voltage detection circuit is used for detecting the voltage of the first battery.

In some embodiments, the control and detection circuit includes a second control chip and a second voltage detection circuit;

the second control chip is electrically connected with the second voltage detection circuit, the second battery and the second charge-discharge circuit;

Wherein the second control chip is detachably and electrically connected with the first control chip;

the second control chip is used for acquiring the battery state of the first battery from the first control chip, controlling the second charge-discharge circuit to determine the battery state of the second battery according to the battery state of the first battery, and the second voltage detection circuit is used for detecting the voltage of the second battery.

In some embodiments, the first charge-discharge circuit includes a first charge-discharge control chip, and the second charge-discharge circuit includes a second charge-discharge control chip;

the first charge and discharge control chip is detachably and electrically connected with the vehicle-mounted power supply;

The first charge-discharge control chip is used for responding to the electric connection with the vehicle-mounted power supply, carrying out input overvoltage protection according to the input voltage of the vehicle-mounted power supply, and carrying out input overcurrent protection according to the input current of the vehicle-mounted power supply;

The second charge-discharge control chip is used for performing battery overvoltage protection according to the voltage of the second battery and performing battery overcurrent protection according to the current of the second battery.

In some embodiments, the portable electronic device further comprises a first serial port communication module, the electronic adapter further comprises a second serial port communication module;

The first serial port communication module is electrically connected with the controller, and the second serial port communication module is electrically connected with the control and detection circuit;

The first serial port communication module and the second serial port communication module are detachably and electrically connected.

To achieve the above object, a second aspect of an embodiment of the present application provides a dual battery charge and discharge management method, which is applied to the dual battery charge and discharge management system described in the first aspect, and the method includes:

Acquiring a battery state of a first battery;

determining the battery state of a second battery according to the battery state of the first battery;

and when the battery state of the second battery is discharging, controlling the second battery to pass through the second charge-discharge circuit and the first charge-discharge circuit to supply power to the controller.

In some embodiments, the first charge-discharge circuit is detachably electrically connected to the vehicle power supply, and the second charge-discharge circuit is detachably electrically connected to the vehicle power supply;

Controlling the vehicle-mounted power supply to charge the first battery or the second battery, and controlling the vehicle-mounted power supply to supply power to the controller;

controlling the second battery to supply power to the controller when the first battery is not in a charging state and the second battery is not in a charging state;

and when the first battery is not in a charging state and the second battery is not in a charging state, and the voltage of the second battery is smaller than a preset voltage threshold value, controlling the first battery to supply power to the controller.

In some embodiments, the first charge-discharge circuit is electrically connected to a vehicle-mounted power supply, and the controlling the vehicle-mounted power supply to charge the first battery or the second battery includes:

controlling the on-off state of the first charge-discharge circuit to be updated into a conducting state;

If the preset multi-battery charging priority represents that the charging priority of the first battery is larger than the charging priority of the second battery, controlling the on-off state of the second charging and discharging circuit to be updated to be an off state so as to control the vehicle-mounted power supply to charge the first battery, so that the battery state of the first battery is updated to be a charging saturated state;

and when the battery state of the first battery is a charging saturated state, controlling the on-off state of the second charging and discharging circuit to be updated to be a conducting state so as to control the vehicle-mounted power supply to charge the second battery.

To achieve the above object, a third aspect of the embodiments of the present application proposes a computer-readable storage medium storing a computer program which, when executed by a processor, implements the method of the second aspect.

The application provides a double-battery charge and discharge management method and system and a storage medium, which comprise portable electronic equipment and an electronic adapter which are detachably and electrically connected, in particular to a detachable electric connection of a controller and a control and detection circuit, and a detachable electric connection of a first charge and discharge circuit and a second charge and discharge circuit. The control and detection circuit is used for determining the battery state of the second battery according to the battery state of the first battery, and the second battery is used for supplying power to the controller through the second charge and discharge circuit and the first charge and discharge circuit when the battery state of the second battery is the discharge state, so that the battery state of the second battery can be adjusted based on the battery state of the first battery, the charge and discharge management of the double batteries is realized, and the continuous working time of the portable electronic equipment is prolonged.

Drawings

Fig. 1 is a block diagram of a dual battery charge and discharge management system according to an embodiment of the present application;

FIG. 2 is a block diagram of a dual battery charge and discharge management system according to another embodiment of the present application;

FIG. 3 is a block diagram of a dual battery charge and discharge management system according to another embodiment of the present application;

fig. 4 is a schematic diagram of a specific implementation of a dual battery charge and discharge management system according to an embodiment of the present application;

Fig. 5 is a schematic diagram of connection relation of a dual battery charge and discharge management system according to an embodiment of the present application;

fig. 6 is a schematic circuit diagram of a first charge-discharge circuit and/or a second charge-discharge circuit according to an embodiment of the present application;

fig. 7 is a flowchart of a dual battery charge and discharge management method according to an embodiment of the present application;

Fig. 8 is a flowchart of a dual battery charge and discharge management method according to another embodiment of the present application;

fig. 9 is a flowchart of step 201 in fig. 8;

fig. 10 is a flowchart of an application example of the dual battery charge and discharge management method according to the embodiment of the present application.

Reference numeral 100, portable electronic equipment, 110, a controller, 111, a first control chip, 112, a first voltage detection circuit, 120, a first charge-discharge circuit, 130, a first battery, 140, a first diode, 200, an electronic adapter, 210, a control and detection circuit, 211, a second control chip, 212, a second voltage detection circuit, 220, a second charge-discharge circuit, 230, a second battery, 240, a second diode, 300, a vehicle-mounted power supply.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

It should be noted that although functional block division is performed in a device diagram and a logic sequence is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the application only and is not intended to be limiting of the application.

First, several nouns involved in the present application are parsed:

Mobile terminals, also called mobile communication terminals or portable electronic devices, refer to portable, miniaturized computer devices that can be used in mobile applications, typically for mobile office, entertainment, communication, etc. The mobile terminal may include a cell phone, notebook, tablet, POS, or car computer.

The tablet personal computer is a mobile terminal. The tablet personal computer has wide application scenes, can be applied to command, dispatch and support of emergency activities such as first aid, disaster relief, fire relief, flood prevention and the like, data collection and analysis, training and simulation, and can also be applied to scenes such as material management and maintenance and the like.

The method and system for managing the charge and discharge of the double batteries and the storage medium provided by the embodiment of the application are specifically described through the following embodiments, and the method for managing the charge and discharge of the double batteries in the embodiment of the application is described first.

Fig. 1 is an alternative block diagram of a dual battery charge and discharge management system according to an embodiment of the present application. The dual battery charge and discharge management system includes:

The portable electronic device 100, the portable electronic device 100 comprises a controller 110, a first charge-discharge circuit 120 and a first battery 130, wherein the controller 110 is electrically connected with the first charge-discharge circuit 120 and the first battery 130, and the first charge-discharge circuit 120 is electrically connected with the first battery 130;

The electronic adapter 200, the electronic adapter 200 comprises a control and detection circuit 210, a second charge and discharge circuit 220 and a second battery 230, wherein the control and detection circuit 210 is electrically connected with the second charge and discharge circuit 220 and the second battery 230, and the second charge and discharge circuit 220 is electrically connected with the second battery 230;

Wherein, the controller 110 is detachably connected to the control and detection circuit 210, and the first charge and discharge circuit 120 is detachably connected to the second charge and discharge circuit 220;

The control and detection circuit 210 is configured to determine a battery state of the second battery 230 according to the battery state of the first battery 130, and the second battery 230 is configured to supply power to the controller 110 through the second charge and discharge circuit 220 and the first charge and discharge circuit 120 when the battery state of the second battery 230 is a discharge state.

The beneficial effects of the embodiment of the application include, but are not limited to, that the dual battery charge and discharge management system includes a portable electronic device 100 and an electronic adapter 200 that are detachably and electrically connected, specifically, the controller 110 is detachably and electrically connected to the control and detection circuit 210, and the first charge and discharge circuit 120 is detachably and electrically connected to the second charge and discharge circuit 220. The control and detection circuit 210 is configured to determine a battery state of the second battery 230 according to a battery state of the first battery 130, and when the battery state of the second battery 230 is a discharge state, the second battery 230 is configured to supply power to the controller 110 through the second charge and discharge circuit 220 and the first charge and discharge circuit 120, so that the battery state of the second battery 230 can be adjusted based on the battery state of the first battery 130, thereby realizing charge and discharge management of the dual batteries, and prolonging a continuous operation time of the portable electronic device 100.

It should be noted that the portable electronic device 100 may include a tablet computer, such as a vehicle-mounted tablet computer. The portable electronic device 100 may also include a mobile phone, a notebook, and the like, which is not limited by the embodiment of the present application. The electronic adapter 200 is an electronic device that is adapted to the portable electronic device 100, and the electronic adapter 200 is capable of powering the portable electronic device 100. For example, the electronic adapter 200 may be a base of a tablet computer.

In some embodiments, the portable electronic device 100 is a vehicle-mounted tablet computer and the electronic adapter 200 is a cradle. In another embodiment, the base may further include a functional module such as a keyboard, a touch screen, and the like. In another embodiment, the dual battery charge and discharge management system may further include a plurality of bases, so that the duration of the vehicle-mounted tablet pc is increased by increasing the number of bases.

In some embodiments, the second battery 230 is further configured to charge the first battery 130 through the second charge-discharge circuit 220 and the first charge-discharge circuit 120 when the battery state of the second battery 230 is a discharge state. It should be noted that, the current portable electronic device 100 cannot supply power to the main system of the tablet with the external battery and charge the battery of the tablet, which results in poor cruising ability of the portable electronic device 100. In view of the above, the embodiment of the present application uses the second battery 230 to supply power to the main system (i.e., the controller 110) of the tablet, and simultaneously charges the first battery 130, thereby improving the cruising ability of the portable electronic device 100.

It should be noted that, in the current charge and discharge management system, it may be necessary to wait for the charge of one battery to be exhausted before discharging the other battery, and the discharging strategy is not flexible enough. In view of the above, the embodiment of the present application can switch the charge and discharge paths in real time, so that the first battery 130 and the second battery 230 are charged and discharged according to the preset charge and discharge priority. For example, the charging order of the battery can be adjusted by charging path management.

In some embodiments, the vehicle-mounted tablet pc and the base may form a two-in-one smart tablet, that is, the dual-battery charge/discharge management system may be a two-in-one smart tablet. The two-in-one intelligent flat plate is portable and miniaturized terminal equipment, can simultaneously meet the vehicle-mounted use environment and the independent use environment, has certain AI (artificial intelligence) processing capacity, meets the requirements of equipment vibration resistance, electromagnetic compatibility, environmental adaptability, long-term use and the like, and has higher reliability.

It should be noted that the first battery 130 may be a main battery, the second battery 230 may be a sub-battery, and the first battery 130 and/or the second battery 230 may be lithium batteries. The battery state may include a charge state and a discharge state. The battery state may also include a state of charge saturation, a state of too low an electric power, a state of charge, and the like, which is not limited by the embodiment of the present application.

It will be appreciated that the detachable electrical connection may refer to a pluggable connection or a cable connection, and embodiments of the present application are not limited in this respect. Specifically, the detachable electrical connection manner includes, but is not limited to, connection through an antenna, USB interface, network communication, electrical connection, serial connection, cable connection, and the like.

Referring to fig. 2, in some embodiments, the first charge-discharge circuit 120 is detachably and electrically connected to the vehicle power supply 300;

The vehicle-mounted power supply 300 is used for supplying power to the controller 110, the controller 110 is further used for determining that the battery state of the first battery 130 is a charging state in response to the first charging and discharging circuit 120 being electrically connected with the vehicle-mounted power supply 300, and the control and detection circuit 210 is further used for determining that the on-off state of the second charging and discharging circuit 220 is an off state in response to the battery state of the first battery 130 being the charging state so as to disconnect the second battery 230 from the vehicle-mounted power supply 300.

The embodiment has an advantage in that the first charge-discharge circuit 120 can be connected to the in-vehicle power supply 300 to charge the first battery 130, and the second charge-discharge circuit 220 is controlled to be turned off in the case of charging the first battery 130, so that the second battery 230 is not charged, and the charge priority control of the first battery 130 and the second battery 230 is realized.

It should be noted that, in some embodiments, as shown in fig. 2, the second charging and discharging circuit 220 is detachably and electrically connected to the vehicle power supply 300. In some embodiments, specifically, the output voltage of the in-vehicle power supply 300 may be 12V (volts) and the power supply power may be 66W (watts). Or the in-vehicle power supply 300 may also be a 24V power supply.

Referring to FIG. 3, in some embodiments, the controller 110 includes a first control chip 111 and a first voltage detection circuit 112;

The first control chip 111 is electrically connected to the first voltage detection circuit 112, the first battery 130, and the first charge-discharge circuit 120;

the first control chip 111 is used for detecting the battery state of the first battery 130 and controlling the on-off state of the first charge-discharge circuit 120 to update the battery state of the first battery 130, and the first voltage detection circuit 112 is used for detecting the voltage of the first battery 130.

The embodiment has the advantages that the battery state of the first battery 130 is detected through the first control chip 111, the on-off state of the first charge-discharge circuit 120 is controlled to update the battery state of the first battery 130, and the voltage of the first battery 130 is detected through the first voltage detection circuit 112, so that the charge-discharge management of the first battery 130 can be realized, the voltage of the first battery 130 is detected, the battery state is obtained in time, and the reliability of the dual-battery charge-discharge management system is improved.

Referring to FIG. 3, in some embodiments, the control and detection circuit 210 includes a second control chip 211 and a second voltage detection circuit 212;

The second control chip 211 is electrically connected to the second voltage detection circuit 212, the second battery 230, and the second charge-discharge circuit 220;

wherein the second control chip 211 is detachably and electrically connected with the first control chip 111;

The second control chip 211 is used for acquiring the battery state of the first battery 130 from the first control chip 111 and controlling the second charge-discharge circuit 220 to determine the battery state of the second battery 230 according to the battery state of the first battery 130, and the second voltage detection circuit 212 is used for detecting the voltage of the second battery 230.

The embodiment has the advantage that the battery state of the first battery 130 is obtained from the first control chip 111 through the second control chip 211, and the second charge-discharge circuit 220 is controlled to determine the battery state of the second battery 230 according to the battery state of the first battery 130, so that the battery state of the second battery 230 can be adjusted according to the battery state of the first battery 130, and the charge-discharge management of the double batteries is realized.

Referring to fig. 4, in some embodiments, the portable electronic device 100 further includes a first diode 140, the electronic adapter 200 further includes a second diode 240, the first diode 140 is electrically connected to the first charging and discharging circuit 120, the first diode 140 is detachably electrically connected to the vehicle power supply 300, the second diode 240 is electrically connected to the second charging and discharging circuit 220, and the second diode 240 is detachably electrically connected to the vehicle power supply 300. In fig. 4, the portable electronic device 100 is a tablet, such as a car-mounted tablet computer, and the electronic adapter 200 is a base. BAT1 represents the first battery 130 and BAT2 represents the second battery 230. In some embodiments, the controller 110 may be a PAD system (i.e., a tablet control system) of a tablet computer onboard the vehicle. In another embodiment, the buses i2c_1, i2c_2, i2c_3 and i2c_4 are all serial communication buses, and the controller 110 and the control and detection circuit 210 can communicate through a universal serial bus (Universa l Ser ia l Bus, USB).

In fig. 4, red lines indicate paths for charging and discharging, and blue lines indicate paths for transmitting control signals.

Referring to fig. 5, in some embodiments, a specific structure of the dual battery charge/discharge management system is shown in fig. 5. The portable electronic device 100 has a POGO interface 1, the electronic adapter 200 has a POGO interface 2, and the POGO interface 1 and the POGO interface 2 are detachably electrically connected. Specifically, the POGO interface 1 is a socket, and the POGO interface 2 is a plug. It is understood that the POGO interface refers to a probe interface. In another embodiment, the POGO interface 1 may be an interface of the first serial communication module, and the POGO interface 2 may be an interface of the second serial communication module. In another embodiment, the first control chip 111 is a CPU, and the second control chip 211 is an MCU.

Referring to fig. 5, in an application example, the base and the platform may be connected to each other through the POGO interface 1 and the POGO interface 2. The base reads the voltage of the controller 110 through the second voltage detection circuit 212 to determine whether the base is connected to the panel, the panel reads a default level through the first voltage detection circuit 112, the default level is a low level when the panel is connected to the base, and the default level is a high level when the panel is disconnected from the base. The second control chip 211 of the base controls the second charge/discharge circuit 220 via the bus i2c_1, and communicates with the second battery 230 via the bus i2c_2 to read the battery state of the second battery 230. The first control chip 111 of the tablet controls the first charge/discharge circuit 120 via the bus i2c_3, and communicates with the first battery 130 via the bus i2c_4 to read the battery state of the first battery 130. When the first battery 130 is in a charge saturation state, the first charge/discharge circuit 120 feeds back a charge completion signal to the second control chip 211.

In some embodiments, the first charge-discharge circuit 120 includes a first charge-discharge control chip (not shown), and the second charge-discharge circuit 220 includes a second charge-discharge control chip (not shown);

wherein, the first charge-discharge control chip is detachably and electrically connected with the vehicle-mounted power supply 300;

The first charge-discharge control chip is used for responding to the electric connection with the vehicle-mounted power supply 300, performing input overvoltage protection according to the input voltage of the vehicle-mounted power supply 300, and performing input overcurrent protection according to the input current of the vehicle-mounted power supply 300;

The second charge-discharge control chip is used for performing battery overvoltage protection according to the voltage of the second battery 230 and performing battery overcurrent protection according to the current of the second battery 230.

The embodiment has the advantages that the input overvoltage protection is performed according to the input voltage of the vehicle-mounted power supply 300 and the input overcurrent protection is performed according to the input current of the vehicle-mounted power supply 300 through the first charge and discharge control chip, and the battery overvoltage protection is performed according to the voltage of the second battery 230 and the battery overcurrent protection is performed according to the current of the second battery 230 through the second charge and discharge control chip, so that the safety and the reliability of the dual-battery charge and discharge management system are improved.

In some embodiments, the first charge-discharge control chip and the second charge-discharge control chip both have a protection function. For example, the first charge-discharge control chip and the second charge-discharge control chip have 14 protection functions, and specifically include input overvoltage-undervoltage protection, input overcurrent protection, output overvoltage protection, output overcurrent protection, output short-circuit protection, battery overvoltage protection, battery discharge overcurrent protection, periodic overcurrent protection, chip overheat protection and the like. The embodiment of the application can effectively reduce the risk of circuit damage caused by misoperation of the double-battery charge-discharge management system in the application process, and improves the stability of the first charge-discharge control chip and the second charge-discharge control chip, thereby improving the safety and reliability of the system.

Specifically, the first charge and discharge control chip and/or the second charge and discharge control chip may be SC8886 chips.

Referring to fig. 6, in some embodiments, the first charge-discharge control chip and the second charge-discharge control chip are SC8886 chips, and a circuit diagram of the first charge-discharge circuit 120 (or the second charge-discharge circuit 220) is shown in fig. 6. The interfaces P1, P2, P3, P4, P5, and P6 may be any interfaces according to requirements, which is not limited in the embodiment of the present application.

It should be noted that the SC8886 chip is a Buck-Boost (Boost-Buck) charging control chip, and has an NVDC (narrow voltage direct current charging, narrow Vo l tage DC, abbreviated as NVDC) path management function. For example, the BATFET module of the SC8886 chip can separately manage power supply of the PAD system of the tablet and charge and discharge of the battery, and can manage charge and discharge of 1 to 4 batteries. It is understood that BATFET is a circuit element for isolating the system voltage from the battery voltage. The SC8886 chip has the functions of, but not limited to, realizing plug and play without waiting for battery activation under the condition of low voltage of a battery, reducing the charge and discharge cycle times of the battery, effectively improving the service life of the battery, realizing dynamic power management, preferentially guaranteeing the output power of a flat panel system, having a two-stage peak current limiting protection function, having a system minimum working voltage active protection (VMIN ACT I VE protection ion, VAP) function, being capable of monitoring the system voltage of the flat panel in real time, timely supplying power when the system voltage is too low so as to avoid the problems of black screen and the like, having the 14 protection functions, reducing the loss of a Buck-Boost converter path, improving the battery charging efficiency and the like. Therefore, the SC8886 chip has a wide application range, and improves the reliability of the first and second charge-discharge circuits 120 and 220.

In some embodiments, the portable electronic device 100 further comprises a first serial port communication module (not shown), the electronic adapter 200 further comprises a second serial port communication module (not shown);

The first serial communication module is electrically connected with the controller 110, and the second serial communication module is electrically connected with the control and detection circuit 210;

The advantage of this embodiment is that detachable electrical connection between the portable electronic device 100 and the electronic adapter 200 is realized through the first serial port communication module and the second serial port communication module, so that the diversity of connection modes of the dual-battery charge and discharge management system is improved, and charge and discharge management of the dual batteries can be realized when the portable electronic device 100 and the electronic adapter 200 are connected.

Referring to fig. 7, fig. 7 is an optional flowchart of a dual battery charge/discharge management method according to an embodiment of the present application, where the method in fig. 7 may include, but is not limited to, steps 101 to 103.

Step 101, acquiring a battery state of a first battery;

step 102, determining the battery state of the second battery according to the battery state of the first battery;

And step 103, when the battery state of the second battery is a discharging state, controlling the second battery to supply power to the controller through the second charge-discharge circuit and the first charge-discharge circuit.

The method and the device have the beneficial effects that the battery state of the first battery is obtained, the battery state of the second battery is determined according to the battery state of the first battery, and when the battery state of the second battery is the discharging state, the second battery is controlled to pass through the second charging and discharging circuit and the first charging and discharging circuit to supply power to the controller, so that the battery state of the second battery can be adjusted based on the battery state of the first battery, the charging and discharging management of the double batteries is realized, and the continuous working time of the portable electronic equipment is prolonged.

In step 101 of some embodiments, the state detection may be performed on the first battery by the controller of the portable electronic device to obtain a battery state (such as a charge state or a discharge state) of the first battery. The battery state of the first battery may also be acquired by other means, not limited thereto.

In some embodiments, in step 102, determining the battery state of the second battery according to the battery state of the first battery may specifically include updating the battery state of the second battery to a battery state other than the charging state if the first battery is in the charging state, so as to charge the first battery preferentially. If the first battery is in a saturated state of charge, the battery state of the second battery can be updated to a charged state. The embodiment of the application can realize the management of the charging priority of the double batteries (the first battery and the second battery). It will be appreciated that the charging priority may be set and updated according to requirements, such as to charge the second battery preferentially, which is not limited by the embodiment of the present application.

In step 103 of some embodiments, when the second battery is in a discharging state, the current output by the second battery flows to the first charging and discharging circuit through the second charging and discharging circuit and then flows to the controller, so that the second battery is used for supplying power to the controller, and the discharging path management of the second battery is realized.

Referring to fig. 8, in some embodiments, the first charge-discharge circuit is detachably and electrically connected to the vehicle power supply, and the second charge-discharge circuit is detachably and electrically connected to the vehicle power supply, and after step 102, the dual-battery charge-discharge management method may further include, but is not limited to, steps 201 to 203:

Step 201, controlling a vehicle-mounted power supply to charge a first battery or a second battery, and controlling the vehicle-mounted power supply to supply power to a controller;

Step 202, when the first battery is not in a charging state and the second battery is not in a charging state, controlling the second battery to supply power to the controller;

In step 203, when the first battery is not in a charging state and the second battery is not in a charging state, and the voltage of the second battery is less than the preset voltage threshold, the first battery is controlled to supply power to the controller.

The advantage of this embodiment is that when the first charge-discharge circuit or the second charge-discharge circuit is connected to the vehicle-mounted power supply, the vehicle-mounted power supply is controlled to supply power to the controller, and the vehicle-mounted power supply is controlled to charge the first battery or the second battery. And under the condition that the first battery is not in a charging state and the second battery is not in a charging state, preferentially controlling the second battery to supply power to the controller, and controlling the first battery to supply power to the controller if the voltage of the second battery is smaller than a preset voltage threshold.

In some embodiments, in step 201, the vehicle power supply supplies power to the controller, and when the vehicle power supply has an excess amount of power, the first battery or the second battery may be charged according to the charging priority. The charging priority may be to charge the first battery preferentially, or to charge the second battery preferentially. The charging priority can be set and adjusted according to the requirement, and can be set in other modes without limitation.

In step 202 of some embodiments, it should be noted that the first battery is not in a charging state and the second battery is not in a charging state, and specifically may include a case that the vehicle power supply is not connected to the first charging and discharging circuit, or the vehicle power supply is not connected to the second charging and discharging circuit, etc. For example, the first charge-discharge circuit of the portable electronic device is electrically disconnected from the in-vehicle power supply. For another example, in the case where the portable electronic device is connected to the electronic adapter, the second charge-discharge circuit of the electronic adapter is electrically disconnected from the in-vehicle power supply.

In step 203 of some embodiments, it should be noted that the voltage of the second battery is smaller than the preset voltage threshold, which indicates that the voltage of the second battery is too low to supply power to the controller alone. In this case, the first battery is updated to a discharge state, and the first battery is controlled to supply power to the controller. In one embodiment, the first battery and the second battery may be controlled to simultaneously supply power to the controller.

Referring to fig. 9, in some embodiments, the first charging and discharging circuit is electrically connected to the vehicle power supply, and the controlling the vehicle power supply to charge the first battery or the second battery in step 201 may include, but is not limited to, steps 301 to 303:

step 301, controlling the on-off state of the first charge-discharge circuit to be updated to be a conducting state;

step 302, if the preset charging priority of the multiple batteries indicates that the charging priority of the first battery is greater than the charging priority of the second battery, controlling the on-off state of the second charging and discharging circuit to be updated to be an off state so as to control the vehicle-mounted power supply to charge the first battery, so that the battery state of the first battery is updated to be a charging saturated state;

and step 303, when the battery state of the first battery is a charging saturation state, controlling the on-off state of the second charging and discharging circuit to be updated to be a conducting state so as to control the vehicle-mounted power supply to charge the second battery.

The embodiment has the advantages that the vehicle-mounted power supply is controlled to charge the first battery or the second battery according to the charging priority of the multiple batteries, the charging sequence of the first battery and the second battery can be flexibly adjusted according to the charging priority of the multiple batteries, and the charging path management of the first battery or the second battery is realized.

In step 301 of some embodiments, the on-off state of the first charge-discharge circuit may be any one of an on-state and an off-state.

In step 302 of some embodiments, the multi-battery charging priority may be set or updated as desired, which is not limited by embodiments of the present application.

In step 303 of some embodiments, the battery state is a state of charge saturation, which may mean that the charge of the first battery (or the second battery) is greater than or equal to a preset battery charge threshold. It should be noted that, the battery power threshold may be dynamically adjusted, or different battery power thresholds may be set for the first battery and the second battery, so as to set charging priorities of the first battery and the second battery.

In some embodiments, the first charge-discharge circuit includes a first charge-discharge control chip, the second charge-discharge circuit includes a second charge-discharge control chip, and both the first charge-discharge control chip and the second charge-discharge control chip are SC8886 chips. The SC8886 chip can run NVDC (narrow voltage direct current charging, narrow Vo l tage DC, abbreviated as NVDC) software for initialization. Specific methods of initialization include, but are not limited to, (1) after configuration of the number of battery cells and inductance data, powering up the power bus interface (VBUS) of the SC8886 chip, reading all of the above configuration data from the registers, (2) configuring a watchdog (watch dog) monitor, (3) configuring input voltage limiting data, wherein the input voltage limiting data may represent a maximum or minimum value of an input voltage that the chip can withstand, (4) configuring input current limiting data, wherein the input current limiting data may represent a maximum or minimum value of an input current that the chip can withstand, (5) configuring a charging voltage, (6) configuring a minimum operating voltage of the system, and (7) configuring a charging current.

Referring to fig. 4 and 10, in an application example, the tablet and the base are first initialized. If the flat plate or the base is connected with a vehicle-mounted power supply, namely, in a vehicle-mounted environment, if the vehicle-mounted power supply is connected with the flat plate, the vehicle-mounted power supply can be used for directly supplying power to a PAD system (flat plate system) in the controller through a first diode (shown in fig. 4) and a first charge-discharge circuit, and the PAD system is used for detecting the input voltage and the voltage of a first battery to determine the battery state of the first battery. And if the first battery is not in a charging saturated state, starting a charging program of the first battery. If the vehicle-mounted power supply is connected with the base, and the base is spliced with the flat plate, the power socket of the flat plate is closed. The vehicle-mounted power supply supplies power to the first charge-discharge circuit and the second charge-discharge circuit through a second diode (shown in fig. 4). The voltage of the vehicle-mounted power supply and the voltage of the second battery are detected through the control and detection circuit of the base, and meanwhile, the working state of the first charge-discharge circuit of the flat plate is inquired to obtain the battery state of the first battery. If the first battery needs to be charged, the second charging and discharging circuit is controlled to be in an off state, the vehicle-mounted power supply firstly supplies power to the PAD system through the second diode and the first charging and discharging circuit, and the redundant electric quantity of the vehicle-mounted power supply is used for charging the first battery preferentially, so that the first battery is charged. When the first battery is in a charging saturated state, the second charging and discharging circuit automatically charges the second battery of the base, so that the second battery is charged. When the second battery is in a charging saturated state, the second charging and discharging circuit sends a charging completion signal to the control and detection circuit.

In addition, when neither the flat panel nor the base is connected with the vehicle-mounted power supply, namely in a single-use environment, whether the flat panel is connected with the base is judged. When the flat plate is not connected with the base, the first battery can discharge through the first charge-discharge circuit, so that power is supplied to the PAD system. When the flat plate is connected with the base, the second battery discharges to the first charge-discharge circuit through the second charge-discharge circuit and the cathode of the second diode, the first charge-discharge circuit takes the discharge voltage of the second charge-discharge circuit as input voltage, the first charge-discharge circuit supplies power to the PAD system, and the redundant electric quantity of the second battery charges the first battery. If the second battery is not sufficiently charged to power the PAD system, the first battery will end charging and begin discharging, at which point the first battery and the second battery discharge together to power the PAD system. As the second battery discharges, the first battery will continue to power the PAD system until the voltage provided by the first battery drops to the minimum voltage required by the PAD system, and the PAD system of the tablet is shut down.

The embodiment of the application also provides a computer readable storage medium, which stores a computer program, and the computer program realizes the double-battery charge and discharge management method when being executed by a processor.

The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The embodiments described in the embodiments of the present application are for more clearly describing the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of technology and the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

It will be appreciated by persons skilled in the art that the embodiments of the application are not limited by the illustrations, and that more or fewer steps than those shown may be included, or certain steps may be combined, or different steps may be included.

The above described apparatus embodiments are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

Those of ordinary skill in the art will appreciate that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof.

The terms "first," "second," "third," "fourth," and the like in the description of the application and in the above figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" is used to describe an association relationship of an associated object, and indicates that three relationships may exist, for example, "a and/or B" may indicate that only a exists, only B exists, and three cases of a and B exist simultaneously, where a and B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one of a, b or c may represent a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the above-described division of units is merely a logical function division, and there may be another division manner in actual implementation, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. The coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including multiple instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present application. The storage medium includes various media capable of storing programs, such as a USB flash disk, a removable hard disk, a Read-On-y Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk.

The preferred embodiments of the present application have been described above with reference to the accompanying drawings, and are not thereby limiting the scope of the claims of the embodiments of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and spirit of the embodiments of the present application shall fall within the scope of the claims of the embodiments of the present application.

Claims

1. A dual battery charge and discharge management system, the system comprising:

2. The dual battery charge and discharge management system of claim 1, wherein the first charge and discharge circuit is detachably electrically connected to a vehicle power supply;

3. The dual battery charge and discharge management system of claim 1, wherein the controller comprises a first control chip and a first voltage detection circuit;

4. The dual battery charge and discharge management system as set forth in claim 3 wherein said control and detection circuit comprises a second control chip and a second voltage detection circuit;

5. The dual battery charge and discharge management system of claim 1, wherein the first charge and discharge circuit comprises a first charge and discharge control chip and the second charge and discharge circuit comprises a second charge and discharge control chip;

6. The dual battery charge and discharge management system of claim 1, wherein the portable electronic device further comprises a first serial port communication module, the electronic adapter further comprises a second serial port communication module;

7. A dual battery charge and discharge management method, wherein the method is applied to the dual battery charge and discharge management system according to any one of claims 1 to 6, the method comprising:

Acquiring a battery state of a first battery;

and when the battery state of the second battery is a discharging state, controlling the second battery to pass through the second charging and discharging circuit and the first charging and discharging circuit to supply power to the controller.

8. The dual battery charge and discharge management method of claim 7, wherein the first charge and discharge circuit is detachably electrically connected to a vehicle power supply, and the second charge and discharge circuit is detachably electrically connected to the vehicle power supply;

After the determining the battery state of the second battery according to the battery state of the first battery, the method further comprises:

9. The method according to claim 8, wherein the first charge/discharge circuit is electrically connected to a vehicle-mounted power supply, and wherein the controlling the vehicle-mounted power supply to charge the first battery or the second battery comprises:

10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the dual battery charge and discharge management method according to any one of claims 7 to 9.