CN109742460B - Management control method and device for portable battery and computer readable storage medium - Google Patents
Management control method and device for portable battery and computer readable storage medium Download PDFInfo
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- CN109742460B CN109742460B CN201811629679.5A CN201811629679A CN109742460B CN 109742460 B CN109742460 B CN 109742460B CN 201811629679 A CN201811629679 A CN 201811629679A CN 109742460 B CN109742460 B CN 109742460B
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Abstract
The invention discloses a management control method of a portable battery. The method comprises the following steps: obtaining the voltage, current, temperature and electric quantity of the portable battery; comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery; and sending a corresponding power limiting instruction to the portable battery according to the fault alarm level of the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance. The invention also discloses a management control device of the portable battery and a computer readable storage medium. The invention can realize that the protection level is increased to form a multi-stage fault protection function in the BMS control strategy, thereby more safely protecting the portable battery.
Description
Technical Field
The present invention relates to the field of portable battery technologies, and in particular, to a management control method and apparatus for a portable battery, and a computer-readable storage medium.
Background
BMS (portable BATTERY management system, BATTERY MANAGEMENT SYSTEM) is portable BATTERY and the tie between the electrical apparatus, and the main object is portable BATTERY, mainly is in order to improve portable BATTERY's utilization ratio, prevents that overcharge and overdischarge from appearing in portable BATTERY, and the wide application is in portable removal portable BATTERY fields such as electric automobile and small-size energy storage.
The BMS control method of the portable battery is simple at present, the fault protection function is single, the function of protecting the portable battery is achieved only by directly opening and closing the MOS tube through simple judgment, the protection effect of the portable battery is poor, and the good effect of protecting the portable battery cannot be achieved.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a management control method, a management control device and a computer readable storage medium of a portable battery, aiming at realizing the function of increasing protection levels to form multi-level fault protection in a BMS control strategy and protecting the portable battery more safely.
In order to achieve the above object, the present invention provides a management control method for a portable battery, comprising the steps of:
obtaining the voltage, current, temperature and electric quantity of the portable battery;
comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery;
and sending a corresponding power limiting instruction to the portable battery according to the fault alarm level of the portable battery.
Optionally, the step of determining the fault alarm level of the portable battery according to a comparison between at least one or a combination of two or more of the voltage, the current, the temperature, and the electric quantity of the portable battery and a corresponding preset threshold respectively includes:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values respectively, and determining the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery according to the comparison result;
and determining the fault alarm level of the portable battery according to the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery.
Optionally, the plurality of thresholds includes a voltage first threshold, a current first threshold, a temperature first threshold, and a charge first threshold; a voltage second threshold, a current second threshold, a temperature second threshold and an electric quantity second threshold; a voltage third threshold, a current third threshold, a temperature third threshold, and an electrical third threshold;
the voltage first threshold is smaller than the voltage second threshold, which is smaller than the voltage third threshold;
the current first threshold is less than the current second threshold, which is less than the current third threshold;
the first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold;
the electrical quantity first threshold value is smaller than the electrical quantity second threshold value, and the electrical quantity second threshold value is smaller than the electrical quantity third threshold value.
Optionally, the step of comparing the voltage, the current, the temperature, and the electric quantity of the portable battery with the corresponding plurality of threshold values respectively, and determining the fault alarm level of the voltage, the current, the temperature, and the electric quantity of the portable battery according to the comparison result includes:
comparing the voltage of the portable battery with a first voltage threshold, a second voltage threshold and a third voltage threshold respectively, and determining that the voltage of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the current of the portable battery is respectively compared with a first current threshold, a second current threshold and a third current threshold, and the current of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the temperature of the portable battery is respectively compared with a first temperature threshold, a second temperature threshold and a third temperature threshold, and the temperature of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the electric quantity of the portable battery with the first electric quantity threshold, the second electric quantity threshold and the third electric quantity threshold respectively, and determining that the electric quantity of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level.
Optionally, the step of determining the maximum fault alarm level of the portable battery according to the maximum fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery includes:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery to obtain the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery;
and determining the fault alarm level of the portable battery according to the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery.
Optionally, the step of determining the portable battery fault alarm level according to the portable battery fault alarm levels of voltage, current, temperature and electric quantity includes:
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a first fault grade, the fault alarm grade of the portable battery is a first fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a second fault grade, the fault alarm grade of the portable battery is the second fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a third fault grade, the fault alarm grade of the portable battery is the third fault alarm grade;
and when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a fourth fault grade, the fault alarm grade of the portable battery is the fourth fault alarm grade.
Optionally, the step of sending a corresponding power limit instruction to the portable battery according to the fault alarm level of the portable battery includes:
when the portable battery fault alarm level is a first fault alarm level, sending an instruction without limiting power to the portable battery;
when the portable battery fault alarm level is a second fault alarm level, sending an instruction for limiting the first power to the portable battery;
when the portable battery fault alarm level is a third fault alarm level, sending an instruction for limiting second power to the portable battery;
and when the portable battery fault alarm level is the fourth fault alarm level, sending an MOS tube disconnection instruction to the portable battery.
Optionally, the portable battery management control method further includes:
after receiving the wake-up signal, the portable battery detects whether the MOS tubes are adhered;
if the MOS is not adhered, closing the MOS tube, enabling the portable battery to work, and executing the following steps: obtaining the voltage, current, temperature and electric quantity of the portable battery;
if the MOS is adhered, the MOS tube is disconnected, and the portable battery is disconnected.
In addition, in order to achieve the above object, the present invention provides a portable battery management control apparatus, including: the portable battery management control program is stored on the memory and can run on the processor, and when being executed by the processor, the portable battery management control program realizes the steps of the management control method of the portable battery.
In addition, to achieve the above object, the present invention also provides a computer-readable storage medium having a portable battery management control program stored thereon, the portable battery management control program, when executed by a processor, implementing the steps of the management control method for a portable battery described above.
The invention provides a portable battery management control method, a portable battery management control device and a computer storage medium. In the method, the voltage, current, temperature and electric quantity of the portable battery are obtained; comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery; and sending a corresponding power limiting instruction to the portable battery according to the fault alarm level of the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance. Through the mode, the protection levels are increased in the BMS control strategy to form the multi-level fault protection levels, different levels of alarm processing modes of slightly limiting power, limiting power and cutting off power supply are adopted according to different fault levels, the portable battery can be protected more safely, and the portable battery is controlled to send the power limiting instruction to the corresponding electric appliance, so that when the portable battery has high-level fault alarm, the power of the electric appliance can be limited in time, the current is reduced to a certain range in advance, the risk of adhesion of the relay when the power supply is cut off is avoided, and the safety of the electric appliance and the relay is protected.
Drawings
FIG. 1 is a schematic diagram of an apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a portable battery management control method according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a portable battery management control method according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a portable battery management control method according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a portable battery management control method according to a fourth embodiment of the present invention;
FIG. 6 is a flow chart illustrating a fifth embodiment of a portable battery management control method according to the present invention;
FIG. 7 is a flowchart illustrating a sixth exemplary embodiment of a portable battery management control method according to the present invention;
FIG. 8 is a flow chart illustrating a seventh exemplary embodiment of a portable battery management control method according to the present invention;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the present invention. The terminal according to the embodiment of the present invention may be a BMS (Battery Management System) or other device having a data processing function.
As shown in fig. 1, the BMS includes components such as a communication module 10, a memory 20, and a processor 30. Those skilled in the art will appreciate that the BMS shown in fig. 1 may also include more or fewer components than illustrated, or combine certain components, or a different arrangement of components. Wherein, the processor 30 is connected to the memory 20 and the communication module 10, respectively, and the memory 20 stores thereon a computer program, which is executed by the processor 30 at the same time.
The communication module 10 may be connected to an external device through a CAN bus (Controller Area Network). The communication module 10 may receive a request from an external communication device, and may also broadcast a transmission command and information to the external communication device. The external communication equipment may be a vehicle controller, a BDC (Bi-directional DC-DC Converter), a thermal management system, and the like.
The memory 20 may be used to store software programs as well as various data. The memory 20 may mainly 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 (such as obtaining portable battery pack parameters), and the like; the storage data area may store data or information created according to the use of the BMS, or the like. Further, the memory 20 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 30, which is a control center of the BMS, connects various parts of the entire BMS using various interfaces and wires, performs various functions of the BMS and processes data by operating or executing software programs and/or modules stored in the memory 20 and calling data stored in the memory 20, thereby integrally monitoring the portable battery pack. Processor 30 may include one or more processing units; preferably, the processor 30 may integrate an application processor, which mainly handles operating systems, application programs, etc., and a modem processor, which mainly handles communications. It will be appreciated that the modem processor described above may not be integrated into the processor 30.
It will be understood by those skilled in the art that the BMS structure shown in fig. 1 does not constitute a limitation of the BMS and may include more or fewer components than illustrated, or combine certain components, or a different arrangement of components.
As shown in fig. 1, the processor 30 may be configured to call a management control program of the portable battery stored in the memory 20 and perform the following operations:
obtaining the voltage, current, temperature and electric quantity of the portable battery;
comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery;
and sending a corresponding power limiting instruction to the portable battery according to the fault alarm level of the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values respectively, and determining the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery according to the comparison result;
and determining the fault alarm level of the portable battery according to the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
the plurality of thresholds comprises a voltage first threshold, a current first threshold, a temperature first threshold and a charge first threshold; a voltage second threshold, a current second threshold, a temperature second threshold and an electric quantity second threshold; a voltage third threshold, a current third threshold, a temperature third threshold, and an electrical third threshold;
the voltage first threshold is smaller than the voltage second threshold, which is smaller than the voltage third threshold;
the current first threshold is less than the current second threshold, which is less than the current third threshold;
the first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold;
the electrical quantity first threshold value is smaller than the electrical quantity second threshold value, and the electrical quantity second threshold value is smaller than the electrical quantity third threshold value.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
comparing the voltage of the portable battery with a first voltage threshold, a second voltage threshold and a third voltage threshold respectively, and determining that the voltage of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the current of the portable battery is respectively compared with a first current threshold, a second current threshold and a third current threshold, and the current of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the temperature of the portable battery is respectively compared with a first temperature threshold, a second temperature threshold and a third temperature threshold, and the temperature of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the electric quantity of the portable battery with the first electric quantity threshold, the second electric quantity threshold and the third electric quantity threshold respectively, and determining that the electric quantity of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery to obtain the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery;
and determining the fault alarm level of the portable battery according to the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a first fault grade, the fault alarm grade of the portable battery is a first fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a second fault grade, the fault alarm grade of the portable battery is the second fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a third fault grade, the fault alarm grade of the portable battery is the third fault alarm grade;
and when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a fourth fault grade, the fault alarm grade of the portable battery is the fourth fault alarm grade.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
when the portable battery fault alarm level is a first fault alarm level, sending an instruction without limiting power to the portable battery;
when the portable battery fault alarm level is a second fault alarm level, sending an instruction for limiting the first power to the portable battery;
when the portable battery fault alarm level is a third fault alarm level, sending an instruction for limiting second power to the portable battery;
and when the portable battery fault alarm level is the fourth fault alarm level, sending an MOS tube disconnection instruction to the portable battery.
Further, the processor 30 may call the portable battery management control program stored in the memory 20, and also perform the following operations:
after receiving the wake-up signal, the portable battery detects whether the MOS tubes are adhered;
if the MOS is not adhered, closing the MOS tube, enabling the portable battery to work, and executing the following steps: obtaining the voltage, current, temperature and electric quantity of the portable battery;
if the MOS is adhered, the MOS tube is disconnected, and the portable battery is disconnected.
The specific embodiment of the portable battery management control device of the present invention is substantially the same as the following embodiments of the portable battery management control method, and will not be described herein again.
Based on the hardware structure, various embodiments of the method of the invention are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a portable battery management control method according to a first embodiment of the present invention, where the portable battery management control method includes:
step S100, obtaining the voltage, current, temperature and electric quantity of the portable battery;
the embodiment of the invention mainly judges the condition of the portable battery according to a plurality of external characteristic parameters of the portable battery in the circuit, thereby achieving the effect of protecting the portable battery according to the condition of the portable battery. The temperature of the portable battery can be obtained by a temperature sensor in contact with the portable battery, and the temperature sensor can be an infrared temperature sensor, a microwave temperature sensor or other temperature sensors. The voltage and the current of the portable battery can be obtained by monitoring the voltage and the current value in a circuit connected with an electric appliance in real time, and the electric quantity can be used for estimating the consumed electric quantity of the portable battery through a related algorithm. By using the mode, the voltage, the current, the temperature and the electric quantity information of the portable battery are obtained through real-time monitoring.
Step S200, comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively, and determining the fault alarm level of the portable battery;
in this embodiment, threshold values can be preset, and the obtained voltage, current, temperature and electric quantity values of the portable battery are used for judging the condition of the portable battery in the circuit in real time, and the voltage, the current, the temperature and the electric quantity of the portable battery are respectively compared with the threshold values through the plurality of threshold values, so that the state of the portable battery is divided into a plurality of fault alarm levels, corresponding measures are taken according to different fault alarm levels of the portable battery, and the purpose of protecting the portable battery is achieved. The portable battery fault alarm level can be divided by comparing the four characteristics of the voltage, the current, the temperature and the electric quantity of the portable battery, or can be determined by only one or the combination of more than two of the characteristics.
And step S300, according to the fault alarm level of the portable battery, sending a corresponding power limiting instruction to the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance.
After the state of the portable battery is divided into a plurality of fault alarm levels, corresponding power limiting measures can be correspondingly adopted for protection according to different fault alarm levels of the portable battery. For example, when the temperature of the portable battery is too high and reaches a higher portable battery fault alarm level, the output power of the portable battery can be reduced by limiting 50% of the power, and the temperature of the portable battery is reduced to achieve the purpose of protecting the portable battery. The power limitation can be a plurality of limitation modes such as slight power limitation, power supply cut-off and the like. The power limiting instruction corresponding to the fault warning level is sent to the portable battery for corresponding control, meanwhile, after the portable battery receives the power limiting instruction, the power limiting instruction is sent to the electric appliance, the electric appliance disconnects the relay inside according to the same power limiting instruction, and therefore the electric appliance is better protected, and the relay inside the electric appliance is prevented from being adhered.
The invention provides a portable battery management control method, a portable battery management control device and a computer storage medium. In the method, the voltage, current, temperature and electric quantity of the portable battery are obtained; comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery; and sending a corresponding power limiting instruction to the portable battery according to the fault alarm level of the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance. Through the mode, the protection levels are increased in the BMS control strategy to form the multi-level fault protection levels, different levels of alarm processing modes of slightly limiting power, limiting power and cutting off power supply are adopted according to different fault levels, the portable battery can be protected more safely, and the portable battery sends the power limiting instruction to the corresponding electric appliance, so that when the portable battery has high-level fault alarm, the power of the electric appliance can be limited in time, the current is reduced to a certain range in advance, the risk of adhesion of the relay when the power supply is cut off is avoided, and the safety of the electric appliance and the relay is protected.
Referring to fig. 3, fig. 3 is a flowchart illustrating a portable battery management control method according to a second embodiment of the present invention.
Based on the foregoing embodiment, in this embodiment, step S200 includes:
step S210, comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values respectively, and determining the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery according to the comparison result;
and comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values respectively, wherein the plurality of set threshold values can be 3, 4 or more, the voltage, the current, the temperature and the electric quantity of the portable battery are divided into a plurality of conditions by setting the plurality of threshold values, and then the fault alarm level of the portable battery is judged according to different conditions. In this embodiment, the voltage, the current, the temperature and the electric quantity of the portable battery are respectively set to 3 thresholds, including a voltage first threshold, a current first threshold, a temperature first threshold and an electric quantity first threshold, a voltage second threshold, a current second threshold, a temperature second threshold and an electric quantity second threshold, a voltage third threshold, a current third threshold, a temperature third threshold and an electric quantity third threshold. The voltage first threshold is smaller than the voltage second threshold, the voltage second threshold is smaller than the voltage third threshold, the current first threshold is smaller than the current second threshold, the current second threshold is smaller than the current third threshold, the temperature first threshold is smaller than the temperature second threshold, the temperature second threshold is smaller than the temperature third threshold, the electric quantity first threshold is smaller than the electric quantity second threshold, and the electric quantity second threshold is smaller than the electric quantity third threshold.
The voltage, the current, the temperature and the electric quantity of the portable battery are respectively divided into a plurality of fault alarm levels by comparing with a plurality of preset threshold values.
And step S220, determining the fault alarm level of the portable battery according to the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery.
After the voltage, the current, the temperature and the electric quantity of the portable battery are divided into a plurality of fault alarm levels, the fault alarm level of the portable battery is determined according to the conditions of the plurality of fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery.
Specifically, referring to fig. 4, step S210 may include:
step S211, comparing the voltage of the portable battery with a first voltage threshold, a second voltage threshold and a third voltage threshold respectively, and determining that the voltage of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the voltage of the portable battery with 3 preset corresponding threshold values respectively, and dividing the voltage into 4 fault alarm levels. And comparing the voltage of the portable battery with a first voltage threshold, a second voltage threshold and a third voltage threshold respectively, determining that the voltage of the portable battery is a first fault alarm level when the voltage is below the first voltage threshold, determining that the voltage of the portable battery is a second fault alarm level when the voltage is between the first voltage threshold and the second voltage threshold, determining that the voltage is a third fault alarm level when the voltage is between the second voltage threshold and the third voltage threshold, and determining that the voltage is a third fault alarm level when the voltage is above the third voltage threshold.
Step S212, comparing the current of the portable battery with a first current threshold, a second current threshold and a third current threshold respectively, and determining that the current of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the current of the portable battery with 3 preset corresponding threshold values respectively, and dividing the current into 4 fault alarm levels. Comparing the current of the portable battery with a first current threshold, a second current threshold and a third current threshold respectively, determining that the current of the portable battery is a first fault alarm level when the current is below the first current threshold, determining that the current of the portable battery is a second fault alarm level when the current is between the first current threshold and the second current threshold, determining that the current is a third fault alarm level when the current is between the second current threshold and the third current threshold, and determining that the current is a third fault alarm level when the current is above the third current threshold.
Step S213, comparing the temperature of the portable battery with a first temperature threshold, a second temperature threshold and a third temperature threshold respectively, and determining that the temperature of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the temperature of the portable battery with 3 preset corresponding threshold values respectively, and dividing the temperature into 4 fault alarm levels. And comparing the temperature of the portable battery with a first temperature threshold, a second temperature threshold and a third temperature threshold respectively, determining that the temperature of the portable battery is a first fault alarm level when the temperature is below the first temperature threshold, determining that the temperature of the portable battery is a second fault alarm level when the temperature is between the first temperature threshold and the second temperature threshold, determining that the temperature is a third fault alarm level when the temperature is between the second temperature threshold and the third temperature threshold, and determining that the temperature is a third fault alarm level when the temperature is above the third temperature threshold.
Step S214, comparing the electric quantity of the portable battery with the first electric quantity threshold, the second electric quantity threshold and the third electric quantity threshold respectively, and determining that the electric quantity of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level.
And comparing the electric quantity of the portable battery with 3 preset corresponding threshold values respectively, and dividing the electric quantity into 4 fault alarm levels. And comparing the electric quantity of the portable battery with an electric quantity first threshold value, an electric quantity second threshold value and an electric quantity third threshold value respectively, determining that the electric quantity of the portable battery is a first fault alarm level when the electric quantity is below the electric quantity first threshold value, determining that the electric quantity is a second fault alarm level when the electric quantity is between the electric quantity first threshold value and the electric quantity second threshold value, determining that the electric quantity is a third fault alarm level when the electric quantity is between the electric quantity second threshold value and the electric quantity third threshold value, and determining that the electric quantity is a third fault alarm level when the electric quantity is above the electric quantity third threshold value.
As can be seen from this embodiment, the voltage, current, temperature and power of the portable battery are respectively compared with 3 preset thresholds, so that the voltage, current, temperature and power of the portable battery are respectively divided into 4 fault alarm levels. The voltage, the current, the temperature and the electric quantity of the portable battery can also be respectively compared with 4 preset threshold values, and the voltage, the current, the temperature and the electric quantity of the portable battery are respectively divided into 5 fault alarm levels. The four characteristics of voltage, current, temperature and charge of the portable battery may be respectively located at different fault alarm levels at the same time.
Referring to fig. 5, fig. 5 is a schematic flow chart illustrating a portable battery management control method according to a fourth embodiment of the present invention.
Based on the foregoing embodiment, in this embodiment, step S220 includes:
step S221, comparing the voltage, the current, the temperature and the electric quantity of the portable battery to obtain the highest fault alarm grade of the voltage, the current, the temperature and the electric quantity of the portable battery;
in this embodiment, after obtaining each fault alarm level of the voltage, the current, the temperature, and the electric quantity of the portable battery, the priority order of the fault alarm levels is preset, and the priority levels of the fault alarm levels of the voltage, the current, the temperature, and the electric quantity of the portable battery are compared according to the priority order of the fault alarm levels, so as to obtain the highest fault alarm level among the four characteristics of the voltage, the current, the temperature, and the electric quantity of the portable battery. For example, when the voltage, current, temperature and power of the portable battery are divided into 4 failure alarm levels, a fourth failure alarm level is set to be superior to a third failure alarm level, which is superior to a second failure alarm level, which is superior to the first failure alarm level. When the voltage of the portable battery is at the first fault alarm level, the current is at the first fault alarm level, the temperature is at the second fault alarm level, and the electric quantity is at the first fault alarm level, the highest fault alarm level obtained after comparison is at the second fault alarm level.
Step S222, determining the fault alarm level of the portable battery according to the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery.
Different maximum fault alarm levels of the portable battery correspond to different limiting measures, and different limiting measures are taken for the portable battery according to different maximum fault alarm levels to protect the portable battery.
Referring to fig. 6, fig. 6 is a flowchart illustrating a fifth embodiment of a portable battery management control method according to the present invention.
Based on the foregoing embodiment, in this embodiment, step S220 includes:
step S223, when the highest fault level in the voltage, the current, the temperature and the electric quantity of the portable battery is a first fault level, the fault alarm level of the portable battery is the first fault alarm level;
and when the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery is a first fault alarm level, the corresponding fault alarm level of the portable battery is the first fault alarm level.
Step S224, when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a second fault grade, the fault alarm grade of the portable battery is the second fault alarm grade;
and when the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery is a second fault alarm level, the corresponding fault alarm level of the portable battery is the second fault alarm level.
Step S225, when the highest fault level in the voltage, the current, the temperature and the electric quantity of the portable battery is a third fault level, the fault alarm level of the portable battery is the third fault alarm level;
and when the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery is a third fault alarm level, the corresponding fault alarm level of the portable battery is the third fault alarm level.
In step S226, when the highest fault level of the voltage, the current, the temperature and the electric quantity of the portable battery is a fourth fault level, the fault alarm level of the portable battery is the fourth fault alarm level. .
And obtaining the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery, wherein when the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery is the fourth fault alarm level, the corresponding fault alarm level of the portable battery is the fourth fault alarm level.
And by utilizing the preset priority level of the fault alarm level, the highest fault alarm level in the voltage, the current, the temperature and the electric quantity of the portable battery can be a plurality of fault alarm levels, and the plurality of fault alarm levels are correspondingly set. Through the mode, the condition of the portable battery can be divided into a plurality of fault alarm levels by utilizing the voltage, the current, the temperature and the electric quantity of the portable battery, different limiting measures are taken to protect the portable battery, and the portable battery is prevented from being damaged.
Referring to fig. 7, fig. 7 is a flowchart illustrating a portable battery management control method according to a sixth embodiment of the present invention.
Based on the foregoing embodiment, in this embodiment, step S300 includes:
step S310, when the portable battery fault alarm level is the first fault alarm level, sending an instruction without limiting power to the portable battery;
and acquiring the fault alarm grade number of the portable battery, when the fault alarm grade of the portable battery is the first fault alarm grade, indicating that the portable battery is in a safe state, and sending an instruction without limiting power to the portable battery, even if the portable battery is kept in a full-power state, so that the portable battery can be fully supplied with power.
Step S320, when the portable battery fault alarm level is the second fault alarm level, an instruction for limiting the first power is sent to the portable battery;
and acquiring the fault alarm grade number of the portable battery, indicating that the portable battery is in a low-risk state when the fault alarm grade of the portable battery is a second fault alarm grade, and sending an instruction for limiting the first power to the portable battery. The first power is defined as a defined lower power, which may be 20%, 30% or otherwise, causing the portable battery to reduce the lower power to continue powering.
Step S330, when the portable battery fault alarm level is a third fault alarm level, sending an instruction for limiting a second power to the portable battery;
and acquiring the fault alarm grade number of the portable battery, indicating that the portable battery is in a higher dangerous state when the fault alarm grade of the portable battery is a third fault alarm grade, and sending an instruction for limiting the second power to the portable battery. The second power is greater than the first power, and the second power is defined as a higher power, which may be 50%, 60% or otherwise, such that the portable battery is powered at a lower power.
And step S340, when the portable battery fault alarm level is the fourth fault alarm level, sending an MOS tube disconnection instruction to the portable battery.
And acquiring the fault alarm grade number of the portable battery, and when the fault alarm grade of the portable battery is a fourth fault alarm grade, namely the highest fault alarm grade, indicating that the portable battery is in a dangerous state, and sending an MOS tube disconnection instruction to the portable battery. The portable battery is disconnected, power is not supplied, the circuit is protected, and the safety of the electric appliance, the power supply and the portable battery is ensured.
Referring to fig. 8, fig. 8 is a flowchart illustrating a portable battery management control method according to a seventh embodiment of the present invention.
Based on the foregoing embodiment, in this embodiment, before step S100, the method further includes:
step S010, after receiving the wake-up signal, the portable battery detects whether the MOS tube is adhered;
if not, step S100 is executed: obtaining the voltage, current, temperature and electric quantity of the portable battery;
if yes, step S020 is executed: and the MOS tube is disconnected, and the portable battery is disconnected.
In this embodiment, insert portable battery into car base, portable battery receives wake-up signal after, detects whether the MOS pipe takes place the adhesion, if the MOS pipe does not take place the adhesion, just carry out the step and acquire voltage, electric current, temperature and the electric quantity information of portable battery, and then according to the state of portable battery's voltage, electric current, temperature and electric quantity information monitoring portable battery, divide the state of portable battery into a plurality of trouble warning grades, correspondingly take corresponding measure to protect. If the MOS has the adhesion, then the disconnection MOS makes the circuit disconnection, detects the state of MOS before portable battery work like this, just can avoid taking place under the condition of adhesion at the MOS pipe, and closed MOS pipe makes the circuit take place the short circuit, causes portable battery injury to reach the safe purpose of protection portable battery.
In addition, the embodiment of the invention also provides a computer readable storage medium.
The computer-readable storage medium of the present invention has stored thereon a portable battery management control program that, when executed by a processor, implements the steps of portable battery management control as described above.
The method implemented when the portable battery management control program running on the processor is executed may refer to various embodiments of the portable battery management control method of the present invention, and details are not described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A management control method of a portable battery is characterized by comprising the following steps:
obtaining the voltage, current, temperature and electric quantity of the portable battery;
comparing at least one or more than two combinations of voltage, current, temperature and electric quantity of the portable battery with corresponding preset thresholds respectively to determine the fault alarm level of the portable battery;
according to the fault alarm level of the portable battery, sending a corresponding power limiting instruction to the portable battery, and controlling the portable battery to send the power limiting instruction to a corresponding electrical appliance;
the step of determining the malfunction alert level of the portable battery includes:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery to obtain the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery;
the step of determining the fault alarm level of the portable battery according to the highest fault alarm level of the voltage, the current, the temperature and the electric quantity of the portable battery comprises the following steps:
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a first fault grade, the fault alarm grade of the portable battery is a first fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a second fault grade, the fault alarm grade of the portable battery is the second fault alarm grade;
when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a third fault grade, the fault alarm grade of the portable battery is the third fault alarm grade;
and when the highest fault grade in the voltage, the current, the temperature and the electric quantity of the portable battery is a fourth fault grade, the fault alarm grade of the portable battery is the fourth fault alarm grade.
2. The method as claimed in claim 1, wherein the step of determining the fault alarm level of the portable battery according to the comparison between at least one or more of the voltage, the current, the temperature and the electric quantity of the portable battery and the corresponding preset threshold respectively comprises:
comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values respectively, and determining the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery according to the comparison result;
and determining the fault alarm level of the portable battery according to the fault alarm levels of the voltage, the current, the temperature and the electric quantity of the portable battery.
3. The management control method of a portable battery according to claim 2, characterized in that: the plurality of thresholds comprises a voltage first threshold, a current first threshold, a temperature first threshold and a charge first threshold; a voltage second threshold, a current second threshold, a temperature second threshold and an electric quantity second threshold; a voltage third threshold, a current third threshold, a temperature third threshold, and an electrical third threshold;
the voltage first threshold is smaller than the voltage second threshold, which is smaller than the voltage third threshold;
the current first threshold is less than the current second threshold, which is less than the current third threshold;
the first temperature threshold is smaller than the second temperature threshold, and the second temperature threshold is smaller than the third temperature threshold;
the electrical quantity first threshold value is smaller than the electrical quantity second threshold value, and the electrical quantity second threshold value is smaller than the electrical quantity third threshold value.
4. The management control method of the portable battery according to claim 3, wherein the step of comparing the voltage, the current, the temperature and the electric quantity of the portable battery with a plurality of corresponding threshold values, respectively, and determining the malfunction alert level of the voltage, the current, the temperature and the electric quantity of the portable battery according to the comparison result comprises:
comparing the voltage of the portable battery with a first voltage threshold, a second voltage threshold and a third voltage threshold respectively, and determining that the voltage of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the current of the portable battery is respectively compared with a first current threshold, a second current threshold and a third current threshold, and the current of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
the temperature of the portable battery is respectively compared with a first temperature threshold, a second temperature threshold and a third temperature threshold, and the temperature of the portable battery is determined to be a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level;
and comparing the electric quantity of the portable battery with the first electric quantity threshold, the second electric quantity threshold and the third electric quantity threshold respectively, and determining that the electric quantity of the portable battery is a first fault alarm level, a second fault alarm level, a third fault alarm level or a fourth fault alarm level.
5. The method as claimed in claim 1, wherein the step of sending a corresponding power limit command to the portable battery according to the portable battery fault alarm level comprises:
when the portable battery fault alarm level is a first fault alarm level, sending an instruction without limiting power to the portable battery;
when the portable battery fault alarm level is a second fault alarm level, sending an instruction for limiting the first power to the portable battery;
when the portable battery fault alarm level is a third fault alarm level, sending an instruction for limiting second power to the portable battery;
and when the portable battery fault alarm level is the fourth fault alarm level, sending an MOS tube disconnection instruction to the portable battery.
6. The portable battery management control method of claim 1, further comprising:
after receiving the wake-up signal, the portable battery detects whether the MOS tubes are adhered;
if the MOS is not adhered, closing the MOS tube, enabling the portable battery to work, and executing the following steps: obtaining the voltage, current, temperature and electric quantity of the portable battery;
if the MOS is adhered, the MOS tube is disconnected, and the portable battery is disconnected.
7. A management control device for a portable battery, comprising: memory, a processor and a portable battery management control program stored on the memory and executable on the processor, the portable battery management control program when executed by the processor implementing the steps of the management control method of the portable battery according to any one of claims 1 to 6.
8. A computer-readable storage medium, characterized in that a portable battery management control program is stored thereon, which when executed by a processor implements the steps of the management control method of a portable battery according to any one of claims 1 to 6.
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| CN110148991B (en) * | 2019-06-17 | 2020-12-08 | 北京理工大学 | Big data-based battery overcharge early warning method and system |
| CN111873853B (en) * | 2020-07-30 | 2022-05-10 | 广州小鹏汽车科技有限公司 | Battery management method, device, battery management system, vehicle, and storage medium |
| CN113162174B (en) * | 2021-04-23 | 2022-12-30 | 四川航电微能源有限公司 | Battery management method of lead-carbon battery |
| CN115275396A (en) * | 2022-08-15 | 2022-11-01 | 珠海冠宇电源有限公司 | Battery protection technology and battery pack |
| CN116436950B (en) * | 2023-06-13 | 2023-08-18 | 广东采日能源科技有限公司 | Battery management system and verification method thereof |
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