CN113721146B - Automatic shutdown method, device, terminal and storage medium - Google Patents

Automatic shutdown method, device, terminal and storage medium Download PDF

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Publication number
CN113721146B
CN113721146B CN202010397853.9A CN202010397853A CN113721146B CN 113721146 B CN113721146 B CN 113721146B CN 202010397853 A CN202010397853 A CN 202010397853A CN 113721146 B CN113721146 B CN 113721146B
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battery
less
terminal
temperature value
voltage value
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CN113721146A (en
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陈博文
张明威
傅翱
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644—Constructional arrangements
    • G01R31/3647—Constructional arrangements for determining the ability of a battery to perform a critical function, e.g. cranking
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Protection Of Static Devices (AREA)
  • Power Sources (AREA)

Abstract

The embodiment of the application provides an automatic shutdown method, an automatic shutdown device, a terminal and a storage medium, relates to the technical field of battery protection, and can effectively protect two batteries connected in parallel at low cost. The automatic shutdown method comprises the following steps: acquiring a temperature value detected by a battery temperature sensor in a terminal; when the temperature value meets the preset condition, if the voltage value V1 of the first battery is not less than K and the voltage value V2 of the second battery is not less than K + a, the terminal is controlled to be powered off, K and a are preset positive values, V1 is less than V2, and the branch where the first battery is located is connected in parallel with the branch where the second battery is located.

Description

Automatic shutdown method, device, terminal and storage medium
Technical Field
The present application relates to the field of battery protection technologies, and in particular, to an automatic shutdown method, an automatic shutdown device, a terminal, and a storage medium.
Background
With the development of terminal technologies such as mobile phones, effective utilization and protection of batteries in terminals are more and more important, in a scene that a terminal includes two batteries connected in parallel, usually only one battery is equipped with an electricity meter capable of measuring electricity quantity more accurately, in order to protect the battery at an extreme temperature, the terminal can be automatically shut down when the battery voltage is low, however, in a low-temperature discharge process, for example, the problem of bias current easily occurs to the two batteries connected in parallel, and therefore, the scheme of measuring the battery voltage through one electricity meter as a basis for automatic shutdown may cause that the other battery lacks effective protection.
Disclosure of Invention
The technical scheme of the application provides an automatic shutdown method, an automatic shutdown device, a terminal and a storage medium, and the two parallel batteries can be effectively protected at low cost.
In a first aspect, a technical solution of the present application provides an automatic shutdown method, including: acquiring a temperature value detected by a battery temperature sensor in a terminal; when the temperature value meets the preset condition, if the voltage value V1 of the first battery is not less than K and the voltage value V2 of the second battery is not less than K + a, the terminal is controlled to be powered off, K and a are preset positive values, V1 is less than V2, and the branch where the first battery is located is connected in parallel with the branch where the second battery is located.
Optionally, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, the process of controlling the terminal to shut down specifically includes: and when the temperature value is lower than the preset temperature value, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, controlling the terminal to be shut down.
Alternatively, a is related to the temperature value detected by the battery temperature sensor, and K is not related to the temperature value detected by the battery temperature sensor.
Optionally, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is not less than K and the voltage value V2 of the second battery is not less than K + a, the process of controlling the terminal to shut down includes: when the temperature value meets a preset condition, acquiring V1; and when the V1 is less than or equal to K, obtaining V2, and when the V2 is less than or equal to K + a, controlling the terminal to be powered off.
Optionally, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is not less than K and the voltage value V2 of the second battery is not less than K + a, the process of controlling the terminal to shut down includes: when the temperature value meets a preset condition, acquiring V1 and V2, and determining the size relationship between V1 and V2; if V1 is less than V2, when V1 is less than or equal to K and V2 is less than or equal to K + a, controlling the terminal to shut down; if V1 is larger than V2, when V2 is not less than K and V1 is not less than K + b, the terminal is controlled to shut down, and b is a preset positive value.
In a second aspect, the present application further provides an automatic shutdown device, including: the temperature acquisition module is used for acquiring a temperature value detected by a battery temperature sensor in the terminal; and the shutdown control module is used for controlling the terminal to shut down if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a when the temperature value meets the preset condition, the K and the a are preset positive values, V1 is less than V2, and the branch where the first battery is located is connected in parallel with the branch where the second battery is located.
In a third aspect, the present technical solution further provides an automatic shutdown device, including: a processor and a memory for storing at least one instruction which is loaded and executed by the processor to implement the method described above.
In a fourth aspect, the present technical solution further provides a terminal, including: the branch where the first battery is located is connected in parallel with the branch where the second battery is located; a fuel gauge for detecting a voltage of one of the first battery and the second battery; the automatic shutdown device is provided.
Optionally, the terminal further includes: the first sampling resistor is connected in series with a branch where the first battery is located; the second sampling resistor is connected in series with the branch where the second battery is located; and two sampling ends of the analog-to-digital converter are respectively and electrically connected with two ends of the second sampling resistor, and two sampling ends of the electricity meter are respectively and electrically connected with two ends of the first sampling resistor.
Optionally, the terminal further includes: the first sampling resistor is connected in series with a branch where the first battery is located; the branch where the first battery is located and the branch where the second battery is located are connected in parallel and then are connected in series with the second sampling resistor; and two sampling ends of the analog-to-digital converter are respectively and electrically connected with two ends of the second sampling resistor, and two sampling ends of the electricity meter are respectively and electrically connected with two ends of the first sampling resistor.
In a fifth aspect, the present disclosure further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the method described above.
According to the automatic shutdown method, the automatic shutdown device, the terminal and the storage medium in the embodiment of the application, when the temperature value detected by the battery temperature sensor in the terminal meets the preset condition, when the voltage value V1 of the first battery is not more than K and the voltage value V2 of the second battery is not more than K + a, the terminal is controlled to be shut down so as to protect the batteries, wherein one of V1 and V2 is detected by the electric quantity meter, and the other of V1 and V2 is detected by other auxiliary modes, namely, the battery voltage detection under low cost is realized by matching one electric quantity meter with other auxiliary detection modes, the terminal is controlled to be shut down to realize the battery protection when the electric quantities of the first battery and the second battery which are connected in parallel are close to the limit value, and the consumable electric quantities of the batteries are improved on the premise of effectively protecting the two batteries.
Drawings
Fig. 1 is a schematic flowchart of an automatic shutdown method in an embodiment of the present application;
fig. 2 is a schematic diagram of a circuit structure related to a battery in a terminal according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating another automatic shutdown method according to an embodiment of the present application;
FIG. 4 is a schematic flow chart illustrating another automatic shutdown method according to an embodiment of the present application;
FIG. 5 is a block diagram of an automatic shutdown device according to an embodiment of the present application;
fig. 6 is a schematic diagram of a circuit configuration related to a battery in another terminal according to an embodiment of the present application;
fig. 7 is a schematic diagram of a circuit structure related to a battery in another terminal according to an embodiment of the present application.
Detailed Description
The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.
Prior to the introduction of the embodiments of the present application, a brief description of the prior art problem is first provided. For example, in the prior art, a first battery and a second battery are connected in parallel, only the first battery obtains a battery voltage through an electricity meter for sampling, and in a low-temperature discharge process, for example, the two batteries connected in parallel are prone to have a problem of bias current, that is, the first battery can obtain an accurate battery voltage, the first battery can be protected according to the battery voltage, for example, for each battery, shutdown protection needs to be performed when the battery voltage is lower than 2V, otherwise damage may be caused, but for the second battery, due to lack of an accurate battery voltage obtaining means, if a terminal is controlled to shutdown when the voltage of the first battery detected by the electricity meter is lower than 2V, the actual voltage of the second battery may be lower than 2V at this time, the second battery may lack effective protection, and damage to the second battery may be caused; if the protection of the second battery is to be ensured, it may be necessary to set the control terminal to be turned off when the voltage of the first battery is detected to be lower than 3V, so as to ensure that the second battery is not damaged, but in this case, the first battery may be in a power-off protection state when the discharge amount is small. Therefore, the inventor proposes the following technical solutions in the embodiments of the present application.
As shown in fig. 1 and fig. 2, fig. 1 is a schematic flowchart of an automatic shutdown method in an embodiment of the present application, and fig. 2 is a schematic diagram of a circuit structure related to a battery in a terminal in the embodiment of the present application, where the terminal includes a first battery B1 and a second battery B2, a branch where the first battery B1 is located and a branch where the second battery B2 is located are connected in parallel, for example, a first sampling resistor R1 connected in series with the first battery B1 is disposed on the branch where the first battery B1 is located, the terminal further includes an electricity meter 10, two sampling ends of the electricity meter 10 are respectively electrically connected to two ends of the first sampling resistor R1, a voltage value V1 of the first battery B1 can be obtained through the electricity meter 10 in cooperation with the first sampling resistor R1, and a voltage value V2 of the second battery B2 can be obtained through other manners, the terminal further includes a battery temperature sensor (not shown in fig. 1), the battery temperature sensor is located near the first battery B1 and the second battery B2, and is used for detecting a temperature of the battery in the terminal, and the automatic shutdown method includes:
step 101, acquiring a temperature value detected by a battery temperature sensor in a terminal;
step 102, when the temperature value meets a preset condition, if the voltage value V1 of the first battery B1 is not more than K and the voltage value V2 of the second battery B2 is not more than K + a, the terminal is controlled to be powered off, K and a are preset positive values, V1 is less than V2, and the branch where the first battery B1 is located is connected in parallel with the branch where the second battery B2 is located.
Specifically, when the battery temperature in the terminal is in an extreme state, such as low or high, the terminal needs to be controlled to shut down to avoid damage to the battery, and the temperature value detected by the battery temperature sensor is monitored in real time in step 101. In the structure shown in fig. 2, only the first battery B1 can obtain the voltage value through the fuel gauge 10, therefore, in step 102, in addition to detecting the voltage value V1 of the first battery B1 through the fuel gauge 10, the voltage value V2 of the second battery B2 can be detected through an auxiliary manner such as an analog to digital converter (ADC), and the structure for detecting the voltage value V2 of the second battery B2 is omitted in fig. 2, specifically, as will be exemplified in the following, since the battery voltage value detected by the fuel gauge 10 is more accurate, and the battery voltage value detected through the auxiliary manner is not accurate enough, V1 is set to correspond to the threshold K, and V2 corresponds to the threshold K + a, and the terminal is controlled to be shut down only when both are lower than the corresponding thresholds. K and a are preset values related to the material properties of the battery, and can be set according to requirements. V1 < V2, i.e. the voltage drop of the first battery B1 is greater than the voltage drop of the second battery B2. Through setting the preset values K and a, even if the voltage value V2 of the second battery B2 is detected inaccurately, the electric quantity of the first battery B1 and the electric quantity of the second battery B2 can be controlled to shut down when approaching the limit value, that is, the electric quantity which can be consumed by the batteries can be improved on the premise of realizing effective protection of the two batteries.
It should be noted that fig. 2 only illustrates the structure of acquiring the voltage value V1 of the first battery B1 by the fuel gauge 10, and in other realizable embodiments, the voltage value V2 of the second battery B2 may also be acquired by the fuel gauge 10.
According to the automatic shutdown method in the embodiment of the application, when the temperature value detected by the battery temperature sensor in the terminal meets the preset condition, when the voltage value V1 of the first battery is not less than K and the voltage value V2 of the second battery is not less than K + a, the terminal is controlled to be shut down to protect the batteries, wherein one of V1 and V2 is detected by the electricity meter, and the other of V1 and V2 is detected by other auxiliary modes, namely, the battery voltage detection at low cost is realized by matching one electricity meter with other auxiliary detection modes, and the terminal is controlled to be shut down to realize the battery protection when the electric quantity of the first battery and the electric quantity of the second battery which are connected in parallel are close to the limit value, namely, the consumable electric quantity of the batteries is improved on the premise of realizing effective protection of the two batteries.
Optionally, in step 102, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, the process of controlling the terminal to shut down specifically includes: and when the temperature value is lower than the preset temperature value, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, controlling the terminal to shut down. When the temperature of the battery in the terminal is lower than a certain value, the battery is easy to damage when working at a low electric quantity, so that the automatic shutdown control at a low electric quantity is further realized when the temperature value is judged to be lower than the preset temperature value in the step 102.
Alternatively, a is related to the temperature value detected by the battery temperature sensor, and K is not related to the temperature value detected by the battery temperature sensor. Under different temperature scenarios, the temperature will have an influence on the properties of the battery itself, and therefore a can be set to different preset values related to the temperature value detected by the battery temperature sensor, for example, V1 and V2 are judged when the battery temperature is lower than-10 °, a =0.5V, -20 ° < t1 < -10 > is set when the battery temperature is in the first range t1, and a =0.6V, -30 ° < t2 ≦ 20 ° is set when the battery temperature is in the second range t 2. Through setting a to be related to the temperature, the threshold value of automatic shutdown can be further adjusted according to the temperature, and therefore the consumable electric quantity of the batteries is further improved on the premise that the two batteries are protected.
Optionally, as shown in fig. 3, fig. 3 is a schematic flow chart of another automatic shutdown method in this embodiment of the application, where in step 102, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, the process of controlling the terminal to shutdown includes:
step 1021, when the temperature value meets a preset condition, acquiring V1, and monitoring the V1;
step 1022, when V1 is less than or equal to K, obtaining V2, and monitoring V2;
and step 1023, controlling the terminal to be powered off when V2 is less than or equal to K + a.
Specifically, in the method shown in fig. 3, since V1 is less than V2 in the scene, that is, the battery voltage drop of the first battery B1 is greater than the battery voltage drop of the second battery B2, V1 is greater than or equal to K as the main trigger condition, V2 is greater than or equal to K + a as the auxiliary trigger condition, the auxiliary trigger condition is determined only when the main trigger condition is satisfied, and the terminal shutdown process is executed when both the main trigger condition and the auxiliary trigger condition are satisfied.
Optionally, as shown in fig. 4, fig. 4 is a schematic flow chart of another automatic shutdown method in this embodiment of the application, where in step 102, when the temperature value satisfies the preset condition, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, the process of controlling the terminal to shutdown includes:
step 1031, when the temperature value meets a preset condition, acquiring V1 and V2, and entering step 1032;
step 1032, determining the size relationship between V1 and V2, if V1 is less than V2, entering step 1033, and if V1 is greater than V2, entering step 1034;
step 1033, when V1 is not less than K and V2 is not less than K + a, controlling the terminal to shut down;
and 1034, when the V2 is not less than K and the V1 is not less than K + b, controlling the terminal to shut down, wherein b is a preset positive value.
Specifically, in the method shown in fig. 4, when the temperature value satisfies the preset condition, the magnitude relationship between V1 and V2 is first determined to determine the relationship between the battery voltage drop of the first battery B1 and the battery voltage drop of the second battery B2, if V1 is greater than V2, step 1033 is performed, where V1 is greater than or equal to K as the main trigger condition, and V2 is greater than or equal to K + a as the auxiliary trigger condition, so as to execute the automatic shutdown process, and if V1 is greater than V2, step 1034 is performed, where V2 is greater than or equal to K as the main trigger condition, and V1 is greater than or equal to K + B as the auxiliary trigger condition, so as to execute the automatic shutdown process. Therefore, the battery voltage drop relation between the first battery B1 and the second battery B2 does not need to be judged in advance, but the battery voltage drop relation can be automatically judged, and the corresponding automatic shutdown process is executed under different battery voltage drop relations.
As shown in fig. 5, fig. 5 is a block diagram of an automatic shutdown device in an embodiment of the present application, and an embodiment of the present application provides an automatic shutdown device, including: the temperature acquisition module 1 is used for acquiring a temperature value detected by a battery temperature sensor in the terminal; and the shutdown control module 2 is used for controlling the terminal to shut down if the voltage value V1 of the first battery is not more than K and the voltage value V2 of the second battery is not more than K + a when the temperature value meets the preset condition, wherein K and a are preset positive values, V1 is less than V2, and the branch where the first battery is located is connected in parallel with the branch where the second battery is located.
The automatic shutdown device may apply the automatic shutdown method in the above embodiment, and the specific process and principle are the same as those in the above embodiment, and are not described herein again. It should be understood that the above division of the modules of the apparatus shown in fig. 5 is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or can be implemented in the form of hardware; and part of the modules can be realized in the form of calling by the processing element in software, and part of the modules can be realized in the form of hardware. For example, the shutdown control module may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the terminal, or may be stored in a memory of the terminal in the form of a program, and the processing element of the terminal calls and executes the functions of the above modules. The other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when some of the above modules are implemented in the form of a Processing element scheduler, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).
The embodiment of the present application further provides an automatic shutdown device, including: a processor and a memory for storing at least one instruction which is loaded and executed by the processor to implement the auto-off method described above.
The number of the processors may be one or more, and the processors and the memories may be connected by a bus or other means. The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, and the processor executes the non-transitory software programs, instructions, and modules stored in the memory to thereby execute various functional applications and data processing, i.e., to implement the methods in any of the method embodiments described above. The memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; and necessary data, etc. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device.
As shown in fig. 6, fig. 6 is a schematic diagram of a circuit structure related to a battery in another terminal in an embodiment of the present application, and an embodiment of the present application further provides a terminal, including: the battery pack comprises a first battery B1 and a second battery B2, wherein a branch where the first battery B1 is located is connected with a branch where the second battery B2 is located in parallel; an electricity meter 10 for detecting a voltage of one of the first battery B1 and the second battery B2; the automatic shutdown device 20 in the above embodiment. The automatic shutdown device 20 may apply the automatic shutdown method in the above embodiment, and the specific process and principle are the same as those in the above embodiment, and are not described herein again.
Optionally, as shown in fig. 6, the terminal further includes: the first sampling resistor R1 is connected in series with a branch where the first battery B1 is located; the second sampling resistor R2 is connected in series with the branch where the second battery B2 is located; two sampling ends of the analog-to-digital converter 30 are electrically connected to two ends of the second sampling resistor R2, respectively, and two sampling ends of the fuel gauge 10 are electrically connected to two ends of the first sampling resistor R1, respectively.
Specifically, a battery temperature sensor 40 may be further included in the terminal, the battery temperature sensor 40 is located near the first battery B1 and the second battery B2, and is used for detecting the temperature of the battery in the terminal, and the detected temperature signal is transmitted to the automatic shutdown device 20. The fuel gauge 10 is used for matching with the first sampling resistor R1 to detect a voltage value of the first battery B1, and the voltage value detected by the fuel gauge 10 is V1. The analog-to-digital converter 30 can detect the voltage values at the two ends of the second sampling resistor R2, the analog-to-digital converter 30, in cooperation with the second sampling resistor R2 and other calculation modules, can detect the voltage value of the second battery B2, and the detected voltage value is V2.
As shown in fig. 7, fig. 7 is a schematic diagram of a circuit structure related to a battery in another terminal in an embodiment of the present application, where the terminal further includes: the first sampling resistor R1 is connected in series with a branch where the first battery B1 is located; the branch where the first battery B1 is located and the branch where the second battery B2 is located are connected in parallel and then are connected with the second sampling resistor R2 in series; two sampling ends of the analog-to-digital converter 30 are electrically connected to two ends of the second sampling resistor R2, respectively, and two sampling ends of the fuel gauge 10 are electrically connected to two ends of the first sampling resistor R1, respectively.
Specifically, a battery temperature sensor 40 may be further included in the terminal, the battery temperature sensor 40 is located near the first battery B1 and the second battery B2, and is used for detecting the temperature of the battery in the terminal, and the detected temperature signal is transmitted to the automatic shutdown device 20. The fuel gauge 10 is used for matching with the first sampling resistor R1 to detect a voltage value of the first battery B1, and the voltage value detected by the fuel gauge 10 is V1. The analog-to-digital converter 30 may be matched with the second sampling resistor R2 to detect a voltage value and a current value at two ends of the second sampling resistor R2, and matched with other calculation modules and a current and a voltage on a branch where the first battery B1 is located, which are detected by the fuel gauge 10, to detect the voltage value of the second battery B2, where the detected voltage value is V2.
An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the automatic shutdown method.
In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and means that there may be three relationships, for example, a and/or B, and may mean that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. An automatic shutdown method, comprising:
acquiring a temperature value detected by a battery temperature sensor in a terminal;
when the temperature value meets a preset condition, if the voltage value V1 of the first battery acquired by the fuel gauge is not less than K and the voltage value V2 of the second battery acquired by the analog-to-digital converter is not less than K + a, the terminal is controlled to be powered off, K and a are preset positive values, V1 is less than V2, the branch where the first battery is located is connected in parallel with the branch where the second battery is located, the preset condition is that the temperature value is lower than-10 degrees, when the temperature value is in a first range t1, a =0.5V, 20 degrees is less than t1 and less than-10 degrees are set, and when the temperature value is in a second range t2, a =0.6V, 30 degrees is less than t2 and less than-20 degrees are set.
2. The method of claim 1,
when the temperature value meets the preset condition, if the voltage value V1 of the first battery obtained through the fuel gauge is not less than K and the voltage value V2 of the second battery obtained through the analog-to-digital converter is not less than K + a, the process of controlling the terminal to shut down is specifically as follows:
and when the temperature value is lower than the preset temperature value, if the voltage value V1 of the first battery is less than or equal to K and the voltage value V2 of the second battery is less than or equal to K + a, controlling the terminal to be shut down.
3. The method of claim 1,
a is related to the temperature value detected by the battery temperature sensor, and K is not related to the temperature value detected by the battery temperature sensor.
4. The method of claim 1,
when the temperature value meets the preset condition, if the voltage value V1 of the first battery obtained through the fuel gauge is not less than K and the voltage value V2 of the second battery obtained through the analog-to-digital converter is not less than K + a, controlling the shutdown process of the terminal to include:
when the temperature value meets a preset condition, acquiring V1;
and when the V1 is less than or equal to K, obtaining V2, and when the V2 is less than or equal to K + a, controlling the terminal to be powered off.
5. The method of claim 1,
when the temperature value meets the preset condition, if the voltage value V1 of the first battery acquired by the fuel gauge is less than or equal to K and the voltage value V2 of the second battery acquired by the analog-to-digital converter is less than or equal to K + a, the process of controlling the shutdown of the terminal comprises the following steps:
when the temperature value meets a preset condition, acquiring V1 and V2, and determining the size relationship between V1 and V2;
if V1 is less than V2, controlling the terminal to shut down when V1 is less than or equal to K and V2 is less than or equal to K + a;
if V1 is larger than V2, when V2 is smaller than or equal to K and V1 is smaller than or equal to K + b, the terminal is controlled to be powered off, and b is a preset positive value.
6. An automatic shutdown device, comprising:
the temperature acquisition module is used for acquiring a temperature value detected by a battery temperature sensor in the terminal;
and the shutdown control module is used for controlling the terminal to be shut down if the voltage value V1 of the first battery obtained by the electric meter is not less than K and the voltage value V2 of the second battery obtained by the analog-to-digital converter is not less than K + a when the temperature value meets a preset condition, the K and a are preset positive values, V1 is less than V2, the branch where the first battery is located is connected in parallel with the branch where the second battery is located, the preset condition is less than-10 degrees, when the temperature value is within a first range t1, a =0.5V, t1 is more than-20 degrees and less than-10 degrees, and when the temperature value is within a second range t2, a =0.6V, t2 is more than 30 degrees and less than t2 and less than-20 degrees.
7. An automatic shutdown apparatus, comprising:
a processor and a memory for storing at least one instruction which is loaded and executed by the processor to implement the method of any one of claims 1 to 5.
8. A terminal, comprising:
the branch circuit where the first battery is located is connected with the branch circuit where the second battery is located in parallel;
a fuel gauge for detecting a voltage of one of the first battery and the second battery;
the automatic shutdown apparatus of claim 7.
9. The terminal of claim 8, further comprising:
the first sampling resistor is connected in series with a branch where the first battery is located;
the second sampling resistor is connected in series with the branch where the second battery is located;
and two sampling ends of the analog-to-digital converter are respectively and electrically connected to two ends of the second sampling resistor, and two sampling ends of the electricity meter are respectively and electrically connected to two ends of the first sampling resistor.
10. The terminal of claim 8, further comprising:
the first sampling resistor is connected in series with a branch where the first battery is located;
the branch where the first battery is located and the branch where the second battery is located are connected in parallel and then are connected in series with the second sampling resistor;
and two sampling ends of the analog-to-digital converter are respectively and electrically connected to two ends of the second sampling resistor, and two sampling ends of the electricity meter are respectively and electrically connected to two ends of the first sampling resistor.
11. A computer-readable storage medium, in which a computer program is stored which, when run on a computer, causes the computer to carry out the method of any one of claims 1 to 5.
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CN110994052A (en) * 2019-12-14 2020-04-10 惠州Tcl移动通信有限公司 Method and device for prolonging battery endurance, storage medium and terminal equipment
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CN103199583A (en) * 2013-03-28 2013-07-10 华为技术有限公司 Battery management method and device and equipment powered by battery
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