CN113890147B - Battery control method and device, intelligent door lock and storage medium - Google Patents

Battery control method and device, intelligent door lock and storage medium Download PDF

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Publication number
CN113890147B
CN113890147B CN202111155730.5A CN202111155730A CN113890147B CN 113890147 B CN113890147 B CN 113890147B CN 202111155730 A CN202111155730 A CN 202111155730A CN 113890147 B CN113890147 B CN 113890147B
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China
Prior art keywords
battery
control
control unit
temperature
electrothermal film
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CN202111155730.5A
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Chinese (zh)
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CN113890147A (en
Inventor
张维建
唐杰
李春光
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
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Priority to CN202111155730.5A priority Critical patent/CN113890147B/en
Publication of CN113890147A publication Critical patent/CN113890147A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
    • 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

Abstract

The embodiment of the application relates to a battery control method, a device, an intelligent door lock and a storage medium, comprising the following steps: when the control unit is in a normal running state, a first temperature value of the battery is obtained; generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold; and performing heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value. Therefore, the battery heating can be controlled by determining a corresponding strategy according to the running state of the battery control unit, so that the temperature of the battery is increased to the optimal temperature, the working efficiency of the battery is improved, and the situation that the battery cannot work normally when the temperature is too low is avoided.

Description

Battery control method and device, intelligent door lock and storage medium
Technical Field
The embodiment of the application relates to the technical field of batteries, in particular to a battery control method and device, an intelligent door lock and a storage medium.
Background
Along with the quick floor of 5G construction, the smart home industry has obtained very fast development, and it is particularly important to supply power for intelligent equipment, and current power supply unit is mostly battery, but most battery can not normally work under the circumstances of low temperature, for example, can lead to the discharge capacity of battery to become low because of ambient temperature reduces when intelligent lock equipment uses in winter, influences intelligent lock equipment's duration, leads to intelligent lock equipment unable normal operating even.
The existing battery device cannot determine a corresponding control strategy to control battery heating according to the ambient temperature or the running state of equipment.
Disclosure of Invention
In view of this, in order to solve the technical problem that the battery cannot work normally at low temperature, the embodiments of the present application provide a battery control method, device, intelligent door lock and storage medium.
In a first aspect, an embodiment of the present application provides a method for controlling a battery, including:
when the control unit is in a normal running state, a first temperature value of the battery is obtained;
generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold;
and performing heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
In one possible embodiment, the heating the battery based on the first control strategy includes:
generating a first control parameter for the electrothermal film based on the first control strategy;
and controlling the electrothermal film to heat the battery through the first control parameter.
In one possible embodiment, the first control parameter includes: the power-on time of the electrothermal film;
the energizing time of the electrothermal film is obtained by combining the difference value of the first temperature value and the first temperature threshold value with the duty cycle of pulse width modulation.
In one possible embodiment, the method further comprises:
detecting whether the control unit operates normally;
detecting an external second temperature value through a thermistor when the control unit does not normally operate;
generating a second control strategy when the second temperature value is smaller than a second temperature threshold value;
and carrying out heating treatment on the battery based on the second control strategy so as to enable the output voltage of the battery to reach the working voltage of the control unit.
In one possible embodiment, the heating the battery based on the second control strategy includes:
generating a second control parameter for the electrothermal film based on the second control strategy;
and controlling the electrothermal film to heat the battery through the second control parameter.
In one possible embodiment, the method further comprises:
and when the output voltage of the battery reaches the working voltage of the control unit, controlling the control unit to be started so as to enable the control unit to be in a normal running state, and stopping heating the battery based on the second control strategy.
In a second aspect, an embodiment of the present application provides a control device for a battery, including:
the acquisition module is used for acquiring a first temperature value of the battery when the control unit is in a normal running state;
a generation module configured to generate a first control strategy for the battery when the first temperature value is determined to be less than a first temperature threshold;
and the control module is used for carrying out heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
In a third aspect, an embodiment of the present application provides an intelligent door lock, including:
the device comprises a battery unit, a control unit, an electrothermal film, a temperature sensor, a thermistor, a divider resistor and a triode;
the electric heating film is arranged in the battery unit, the temperature sensor is arranged on one side of the battery unit, and the thermistor is arranged on the other side of the battery unit;
the control unit is connected with the electrothermal film through the triode, and the triode is also connected with the thermistor;
the electrothermal film is provided with a first CMOS tube and a second CMOS tube, and the first CMOS tube and the second CMOS tube are connected with the triode.
In a fourth aspect, an embodiment of the present application provides an intelligent door lock, which is characterized in that the intelligent door lock includes: a processor and a memory, the processor being configured to execute a control program of the battery stored in the memory, to implement the control method of the battery according to any one of the above first aspects.
In a fifth aspect, an embodiment of the present application provides a storage medium, where one or more programs are stored, where the one or more programs are executable by one or more processors to implement the method for controlling a battery according to any one of the first aspects.
According to the battery control scheme provided by the embodiment of the application, the corresponding control strategy is determined by acquiring the running state and the temperature of the control unit, and the battery is heated based on the control strategy so that the temperature of the battery is increased and is in the optimal working state, so that the battery is controlled to be heated according to the corresponding strategy determined by the running state of the battery control unit, and the situation that the battery cannot work normally when the temperature is too low is avoided.
Drawings
Fig. 1 is a schematic flow chart of a battery control method according to an embodiment of the present application;
fig. 2 is a flow chart of another battery control method according to an embodiment of the present application;
fig. 3 is a flowchart of another battery control method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an intelligent door lock according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a control device for a battery according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another intelligent door lock according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
For the purpose of facilitating an understanding of the embodiments of the present application, reference will now be made to the following description of specific embodiments, taken in conjunction with the accompanying drawings, which are not intended to limit the embodiments of the application.
Fig. 1 is a flow chart of a control method of a battery according to an embodiment of the present application, as shown in fig. 1, where the method specifically includes:
s11, when the control unit is in a normal operation state, a first temperature value of the battery is obtained.
The control method of the battery provided by the embodiment of the application is applied to intelligent household equipment, and the intelligent household equipment is powered by the battery and can be: the intelligent door lock, the alarm, the camera and the like, particularly when the equipment works in a low-temperature environment, the corresponding control strategy is determined to control the battery temperature to rise to a set threshold value by acquiring the running state of the control unit of the battery, and the control can comprise the following steps: the battery of the device is subjected to a heating operation.
In this embodiment, the control unit may be a controller, where the control unit is configured to perform a heating operation on the battery according to a control instruction, the normal operation state refers to that the voltage of the battery is at a voltage at which the control unit can normally operate, at which time the control unit can be started normally (for example, when the voltage of the battery is greater than 2V, the control unit is in a normal operation state), the first temperature value refers to an ambient temperature around the battery, the first temperature value of the battery may be obtained through a temperature detecting device, and the temperature detecting device may be a temperature sensor.
Further, the current running state of the control unit is obtained, and when the running state is the normal running state, a first temperature value around the battery is obtained through the temperature detection device.
And S12, when the first temperature value is determined to be smaller than a first temperature threshold value, generating a first control strategy for the battery.
In this embodiment, a first temperature threshold is preset, where the first temperature threshold is used to indicate that the battery and the control unit can be in a better working state, and the battery can keep a working state with high discharge capacity and strong endurance capacity when the battery is in the first temperature threshold. The first control strategy is for performing a heating operation of the battery, which may be heating the battery with a heating device.
Further, the first temperature value is compared with a first temperature threshold, and when the first temperature value is smaller than the first temperature threshold, the control strategy of the battery is determined to be a first control strategy.
And S13, performing heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
In this embodiment, the heating process may be to heat the battery using a heating device, the heating device may be an electrothermal film, a first control instruction is determined according to a first control policy, the heating device is controlled by the control unit to respond to the first control instruction, and the heating process is performed on the battery, so that the first temperature value of the battery is raised to be not less than a first temperature threshold, and at this time, the controller is in a normal working state.
For example, when the controller of the battery is in a normal operation state, a first temperature value around the battery obtained through the temperature sensor is-5 ℃, a first temperature threshold value is preset to be 0 ℃ or more, at this time, the first temperature value is smaller than the first temperature threshold value, a control strategy for the battery is determined to be a first control strategy, and the electric heating film is controlled to be started, so that the battery is heated to a temperature of not less than 0 ℃.
According to the battery control method provided by the embodiment of the application, when the control unit is in a normal running state, a first temperature value of the battery is obtained; generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold; and carrying out heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value, thereby realizing the control of the battery heating according to the strategy corresponding to the running state of the battery control unit, and avoiding the situation that the battery cannot work normally when the temperature is too low.
Fig. 2 is a flow chart of another method for controlling a battery according to an embodiment of the present application, as shown in fig. 2, where the method specifically includes:
s21, detecting whether the control unit operates normally.
In this embodiment, the control unit may be a controller, where the control unit is configured to control the battery according to a control instruction, and normal operation refers to that the voltage of the battery is at a voltage at which the control unit can normally operate, and at this time, the control unit may be normally started, and whether the control unit normally operates is determined by using the detection device.
S22, detecting an external second temperature value through the thermistor when the control unit does not normally operate.
In this embodiment, the abnormal operation means that the battery voltage is at a voltage at which the control unit cannot normally operate, at which time the control unit cannot normally start, the thermistor may be a PTC thermistor, the external second temperature value means the ambient temperature around the battery, and the second temperature value of the battery may be determined by the thermistor.
S23, when the second temperature value is smaller than a second temperature threshold value, a second control strategy is generated.
In this embodiment, a second temperature threshold is preset, where the second temperature threshold is used to indicate that the battery and the control unit are in a poor working state, and the control unit may be turned on when the second temperature threshold is in a non-optimal working state (for example, the second temperature threshold is preset to be 0 ℃ or above), and the control unit cannot be turned on when the second temperature threshold is smaller than the second temperature threshold, and the second control strategy is used to perform a heating operation on the battery, where the control strategy may be to control the electrothermal film to be turned on and heat the battery so as to regulate the temperature of the battery.
Further, the second temperature value is compared with a second temperature threshold value, and when the second temperature value is smaller than the second temperature threshold value, the control strategy of the battery is determined to be a second control strategy.
And S24, carrying out heating treatment on the battery based on the second control strategy so as to enable the output voltage of the battery to reach the working voltage of the control unit.
In this embodiment, the heating process may be to heat the battery by using a heating device, the heating device may be an electrothermal film, and the second control command is determined according to the second control policy, so as to control the heating device to respond to the first control command, so that the heating device is turned on, heat the battery, and the output voltage of the heated battery will rise, and when the output voltage of the battery rises to the working voltage of the control unit, the control unit is started.
For example, when the battery and the controller do not normally operate, the second temperature value around the battery obtained through the thermistor is-10 ℃, the second temperature threshold value is preset to be-5 ℃ or more, at the moment, the second temperature value is smaller than the second temperature threshold value, the control strategy of the battery is determined to be the second control strategy, the electrothermal film is controlled to be started, so that the electrothermal film heats the battery until the output voltage of the battery is not smaller than the working voltage of the controller, and at the moment, the controller is started.
According to the control scheme of the battery, the corresponding control strategy is determined by acquiring the running state and the temperature of the control unit, hardware heating treatment is carried out on the battery based on the control strategy so as to increase the temperature of the battery, and the output voltage of the power supply is increased so as to enable the control unit to be started, so that the battery is heated through a hardware circuit and is enabled to be normally started, and the situation that the battery is too slow to heat due to the fact that the temperature of the battery is low and the control unit cannot be started is avoided.
Fig. 3 is a flow chart of another method for controlling a battery according to an embodiment of the present application, as shown in fig. 3, where the method specifically includes:
s31, detecting whether the control unit operates normally.
In this embodiment, the content of step S21 in fig. 2 is the same, and the description is specifically referred to S21, and is omitted herein for brevity.
And S32, detecting an external second temperature value through the thermistor when the control unit does not normally operate.
In this embodiment, the content of step S22 in fig. 2 is the same, and the detailed description of step S22 is referred to herein for brevity.
S33, when the second temperature value is smaller than a second temperature threshold value, a second control strategy is generated.
In this embodiment, the content of step S23 in fig. 2 is the same, and the detailed description of step S23 is referred to herein for brevity.
Referring to fig. 4, a schematic structural diagram of an intelligent door lock according to an embodiment of the present application is shown, and as shown in fig. 4, the intelligent door lock specifically includes:
a battery unit 41, a control unit 42, an electrothermal film 43, a temperature sensor 44, a thermistor 45, a triode 46 and a voltage dividing resistor 47;
the electrothermal film 43 is disposed in the battery unit 41, the temperature sensor 44 is disposed on one side of the battery unit 41, and the thermistor 45 is disposed on the other side of the battery unit 41;
the control unit 42 is connected with the electrothermal film 43 through the triode 46, and the triode 46 is also connected with the thermistor 45 and the voltage dividing resistor 47;
a first CMOS transistor 48 and a second CMOS transistor 49 are provided in the electrothermal film, and the first CMOS transistor 48 and the second CMOS transistor 49 are connected to the transistor 46.
S34, generating a second control parameter for the electrothermal film based on the second control strategy.
In this embodiment, the second control parameter is to turn on the electrothermal film 43 by controlling the thermistor 45, the voltage dividing resistor 47, the triode 46 and the second CMOS tube 49, and when the hardware circuit where the electrothermal film 43 is located is turned on, the electrothermal film 43 is turned on, and the hardware circuit includes: the thermistor 45, the voltage dividing resistor 47, the triode 46, the second CMOS transistor 49 and the electrothermal film 43, the thermistor 45 can be a PTC thermistor, the PTC thermistor corresponds to different resistance values at different temperatures, and is connected in series with the voltage dividing resistor with a specific resistance value to divide voltage so as to adjust the conduction and the closing of the triode, and when the triode 46 is conducted, the electrothermal film 43 is controlled to be turned on.
Further, the corresponding relation between the resistance value of the thermistor 45 and the ambient temperature is obtained, if the electrothermal film 43 needs to be turned on at a specified temperature threshold, the resistance value of the thermistor 45 corresponding to the temperature threshold needs to be determined from the corresponding relation, and the resistance value of the needed voltage dividing resistor 47 can be obtained by calculating according to the resistance value of the thermistor corresponding to the temperature threshold and the base conducting voltage of the triode 46. The calculation method comprises the following steps: v ((Rp/(R+Rp)). Gtoreq.vb, wherein V is the battery discharge cut-off voltage, R is the resistance of the divider resistor, rp is the resistance of the thermistor corresponding to the target temperature threshold, and Vb is the voltage of the triode conducting base.
And S35, controlling the electrothermal film to heat the battery through the second control parameter.
In this embodiment, the heating may be to heat the battery by using the electrothermal film 43, and the electrothermal film 43 is controlled to be turned on and heated according to the second control parameter, so as to heat the battery unit 41.
Further, the voltage dividing resistor 47 is connected in series with the thermistor 45, the voltage at both ends of the thermistor 45 is changed due to the change of the ambient temperature, so that the base electrode of the triode 46 is turned on to turn on the second CMOS tube 49 for controlling the power switch of the electrothermal film 43, at this time, the power switch of the electrothermal film 43 is turned on, the electrothermal film starts to heat the battery unit 41, the output voltage of the heated battery unit 51 will rise, and when the output voltage rises to the working voltage of the control unit 42, the control unit 42 is started, and the stage can be regarded as cold start heating, and the hardware circuit is automatically started.
And S36, when the output voltage of the battery reaches the working voltage of the control unit, controlling the control unit to be started so as to enable the control unit to be in a normal running state, and stopping heating the battery based on the second control strategy.
In this embodiment, the operating voltage of the control unit 42 is a voltage that the control unit can normally start, and at this time, the control unit 42 is in a non-optimal operating state but can normally operate.
Specifically, when the temperature of the battery unit 41 increases to raise the output voltage of the battery to the operating voltage of the control unit 52, the control unit 42 is started, the control unit 42 turns off the second CMOS transistor 49 that controls the power on of the electrothermal film 43 by controlling the transistor 46, turns off the control of the electrothermal film 43 by the hardware circuit, and stops the step of performing the heating process on the battery unit 41 by the second control strategy.
S37, when the control unit is in a normal operation state, a first temperature value of the battery is obtained.
In this embodiment, the content of step S11 in fig. 1 is the same, and the detailed description of step S11 is referred to herein for brevity.
S38, generating a first control strategy for the battery when the first temperature value is determined to be smaller than a first temperature threshold value.
In this embodiment, the content of step S12 in fig. 1 is the same, and the detailed description is referred to in step S12, and is omitted herein for brevity.
S39, generating a first control parameter for the electrothermal film based on the first control strategy.
In this embodiment, the first control parameter is the power-on time of the electrothermal film 43, where the power-on time of the electrothermal film 43 is obtained by combining the difference between the first temperature value and the first temperature threshold value with the duty cycle of pulse width modulation.
Specifically, by means of an algorithm, the duty ratio of PWM is adjusted in combination with the difference between the first temperature value acquired by the temperature sensor 44 and the first temperature threshold, and then the switch of the power supply of the electrothermal film 43 is controlled by controlling the switch of the first CMOS tube 48, so as to adjust the energizing time of the electrothermal film 43, and further dynamically control the temperature of the battery unit 41 to maintain in a temperature range with better battery performance.
For example, when the battery performance is at 0 ℃, the PWM output is 100% when the first temperature value is below the first temperature threshold by more than 5 ℃, and PWM adjustment is performed in such a manner that the PWM output is reduced by 2% for every 0.1 ℃ increase.
And S310, controlling the electrothermal film to heat the battery through the first control parameter so that the first temperature value of the battery is not smaller than the first temperature threshold.
In this embodiment, the heating may be to heat the battery unit 41 by using the electrothermal film 43, and the electrothermal film 43 is controlled to be turned on and heated according to the first control parameter, so as to heat the battery unit 41.
Further, the control unit 42 controls the electrothermal film 43 according to the first control parameter so that the operation time of the electrothermal film reaches the energization time of the electrothermal film in the first control parameter, and continuously heats the battery unit 41 during the operation time so that the first temperature value is not less than the first temperature threshold by the temperature rise of the battery unit 41.
According to the control scheme of the battery, the operation state and the temperature of the control unit are obtained, the corresponding control strategy is determined, the battery is heated based on the control strategy, so that the temperature of the battery is increased and is in an optimal working state, and the heating mode is switched when the temperature is increased to a certain threshold value, so that two heating modes of hardware circuit heating or controller heating control are selected according to the operation state of the battery control unit, the battery keeps stable performance and high working efficiency, and the battery capacity is prevented from being greatly reduced due to low temperature.
Fig. 5 is a schematic structural diagram of a control device for a battery according to an embodiment of the present application, as shown in fig. 5, where the device specifically includes:
an obtaining module 51, configured to obtain a first temperature value of the battery when the control unit is in a normal operation state;
a generation module 52 for generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold;
a control module 53, configured to perform a heating process on the battery based on the first control policy, so that the first temperature value of the battery is not less than the first temperature threshold.
In a possible implementation manner, the generating module 52 is specifically configured to generate a first control parameter for the electrothermal film based on the first control strategy;
the control module 53 is specifically configured to control the electrothermal film to heat the battery through the first control parameter.
In a possible embodiment, the obtaining module 51 is specifically configured to detect whether the control unit is operating normally; detecting an external second temperature value through a thermistor when the control unit does not normally operate;
the generating module 52 is specifically configured to generate a second control policy when the second temperature value is less than a second temperature threshold value;
the control module 53 is specifically configured to perform a heating process on the battery based on the second control policy, so that an output voltage of the battery reaches an operating voltage of the control unit.
In a possible implementation manner, the generating module 53 is specifically configured to generate a second control parameter for the electrothermal film based on the second control strategy;
the control module 53 is specifically configured to control the electrothermal film to heat the battery through the second control parameter.
In a possible implementation manner, the control module 53 is further configured to control the control unit to be turned on to enable the control unit to be in a normal operation state when the output voltage of the battery reaches the operating voltage of the control unit, and stop performing the heat treatment on the battery based on the second control policy.
Fig. 6 is a schematic structural diagram of another intelligent door lock according to an embodiment of the present application, and an intelligent door lock 600 shown in fig. 6 includes: at least one processor 601, memory 602, at least one network interface 604, and other user interfaces 603. The various components in the smart door lock 600 are coupled together by a bus system 605. It is understood that the bus system 605 is used to enable connected communications between these components. The bus system 605 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled as bus system 605 in fig. 6.
The user interface 603 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).
It is to be appreciated that the memory 602 in embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and Direct memory bus RAM (DRRAM). The memory 602 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some implementations, the memory 602 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and application programs 6022.
The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 6022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. The program for implementing the method of the embodiment of the present application may be included in the application 6022.
In the embodiment of the present application, the processor 601 is configured to execute the method steps provided by the method embodiments by calling a program or an instruction stored in the memory 602, specifically, a program or an instruction stored in the application 6022, for example, including:
when the control unit is in a normal running state, a first temperature value of the battery is obtained;
generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold;
and performing heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
In one possible embodiment, a first control parameter for the electrothermal film is generated based on the first control strategy; and controlling the electrothermal film to heat the battery through the first control parameter.
In one possible embodiment, the first control parameter includes: the power-on time of the electrothermal film; the energizing time of the electrothermal film is obtained by combining the difference value of the first temperature value and the first temperature threshold value with the duty cycle of pulse width modulation.
In one possible embodiment, it is detected whether the control unit is operating normally;
detecting an external second temperature value through a thermistor when the control unit does not normally operate;
generating a second control strategy when the second temperature value is smaller than a second temperature threshold value;
and carrying out heating treatment on the battery based on the second control strategy so as to enable the output voltage of the battery to reach the working voltage of the control unit.
In one possible embodiment, a second control parameter for the electrothermal film is generated based on the second control strategy;
and controlling the electrothermal film to heat the battery through the second control parameter.
In one possible embodiment, when the output voltage of the battery reaches the operating voltage of the control unit, the control unit is controlled to be turned on to make the control unit in a normal operation state, and the step of performing the heating treatment on the battery based on the second control strategy is stopped.
The method disclosed in the above embodiment of the present application may be applied to the processor 601 or implemented by the processor 601. The processor 601 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 601 or instructions in the form of software. The processor 601 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software elements in a decoding processor. The software elements may be located in a random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory 602, and the processor 601 reads information in the memory 602 and performs the steps of the above method in combination with its hardware.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (dspev, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The intelligent door lock provided in this embodiment may be an intelligent door lock as shown in fig. 6, and may perform all steps of the control method of the battery as shown in fig. 1-3, so as to achieve the technical effects of the control method of the battery as shown in fig. 1-3, and refer to the related description of fig. 1-3, which is omitted herein for brevity.
The embodiment of the application also provides a storage medium (computer readable storage medium). The storage medium here stores one or more programs. Wherein the storage medium may comprise volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, hard disk, or solid state disk; the memory may also comprise a combination of the above types of memories.
When one or more programs in the storage medium are executable by one or more processors, the above-described battery control method performed on the control device side of the battery is implemented.
The processor is configured to execute a control program of the battery stored in the memory, to implement the following steps of a control method of the battery executed on a control device side of the battery:
when the control unit is in a normal running state, a first temperature value of the battery is obtained;
generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold;
and performing heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
In one possible embodiment, a first control parameter for the electrothermal film is generated based on the first control strategy; and controlling the electrothermal film to heat the battery through the first control parameter.
In one possible embodiment, the first control parameter includes: the power-on time of the electrothermal film; the energizing time of the electrothermal film is obtained by combining the difference value of the first temperature value and the first temperature threshold value with the duty cycle of pulse width modulation.
In one possible embodiment, it is detected whether the control unit is operating normally;
detecting an external second temperature value through a thermistor when the control unit does not normally operate;
generating a second control strategy when the second temperature value is smaller than a second temperature threshold value;
and carrying out heating treatment on the battery based on the second control strategy so as to enable the output voltage of the battery to reach the working voltage of the control unit.
In one possible embodiment, a second control parameter for the electrothermal film is generated based on the second control strategy;
and controlling the electrothermal film to heat the battery through the second control parameter.
In one possible embodiment, when the output voltage of the battery reaches the operating voltage of the control unit, the control unit is controlled to be turned on to make the control unit in a normal operation state, and the step of performing the heating treatment on the battery based on the second control strategy is stopped.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of function in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.

Claims (7)

1. A control method of a battery, characterized by comprising:
when the control unit is in a normal running state, a first temperature value of the battery is obtained;
generating a first control strategy for the battery upon determining that the first temperature value is less than a first temperature threshold;
heating the battery based on the first control strategy so that the first temperature value of the battery is not less than the first temperature threshold, comprising: generating a first control parameter for the electrothermal film based on the first control strategy; controlling the electrothermal film to heat the battery through the first control parameter; the first control parameter includes: the power-on time of the electrothermal film;
detecting whether the control unit operates normally; detecting an external second temperature value through a thermistor when the control unit does not normally operate; generating a second control strategy when the second temperature value is smaller than a second temperature threshold value;
heating the battery based on the second control strategy to enable the output voltage of the battery to reach the working voltage of the control unit, wherein the heating comprises the following steps: generating a second control parameter for the electrothermal film based on the second control strategy; controlling the electrothermal film to heat the battery through the second control parameter; the second control parameter is that the electrothermal film is started by controlling the thermistor, the divider resistor, the triode and the second CMOS tube.
2. The method of claim 1, wherein the energization time of the electrothermal film is derived from a difference between the first temperature value and the first temperature threshold in combination with a pulse width modulated duty cycle.
3. The method according to claim 1, wherein the method further comprises:
and when the output voltage of the battery reaches the working voltage of the control unit, controlling the control unit to be started so as to enable the control unit to be in a normal running state, and stopping heating the battery based on the second control strategy.
4. A control device for a battery for realizing the control method for a battery as set forth in claim 1, characterized by comprising:
the acquisition module is used for acquiring a first temperature value of the battery when the control unit is in a normal running state;
a generation module configured to generate a first control strategy for the battery when the first temperature value is determined to be less than a first temperature threshold;
and the control module is used for carrying out heating treatment on the battery based on the first control strategy so that the first temperature value of the battery is not smaller than the first temperature threshold value.
5. An intelligent door lock for implementing the control method of the battery as set forth in claim 1, comprising:
the device comprises a battery unit, a control unit, an electrothermal film, a temperature sensor, a thermistor, a divider resistor and a triode;
the electric heating film is arranged in the battery unit, the temperature sensor is arranged on one side of the battery unit, and the thermistor is arranged on the other side of the battery unit;
the control unit is connected with the electrothermal film through the triode, and the triode is also connected with the thermistor;
the electrothermal film is provided with a first CMOS tube and a second CMOS tube, and the first CMOS tube and the second CMOS tube are connected with the triode.
6. An intelligent door lock, characterized by comprising: the battery control device comprises a processor and a memory, wherein the processor is used for executing a battery control program stored in the memory so as to realize the battery control method according to any one of claims 1-3.
7. A storage medium storing one or more programs executable by one or more processors to implement the method of controlling a battery according to any one of claims 1 to 3.
CN202111155730.5A 2021-09-29 2021-09-29 Battery control method and device, intelligent door lock and storage medium Active CN113890147B (en)

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CN203631703U (en) * 2013-12-13 2014-06-04 惠州市亿能电子有限公司 Control circuit of electric car battery heating system
WO2017173722A1 (en) * 2016-04-06 2017-10-12 中兴通讯股份有限公司 Method and device for controlling terminal
CN109291763A (en) * 2018-11-15 2019-02-01 珠海格力电器股份有限公司 A kind of heat pump air conditioning system and its control method and automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012178899A (en) * 2011-02-25 2012-09-13 Nissan Motor Co Ltd Charger
CN203617733U (en) * 2013-10-29 2014-05-28 北汽福田汽车股份有限公司 Power battery pack heating system of electric automobile and electric automobile
CN203631703U (en) * 2013-12-13 2014-06-04 惠州市亿能电子有限公司 Control circuit of electric car battery heating system
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CN109291763A (en) * 2018-11-15 2019-02-01 珠海格力电器股份有限公司 A kind of heat pump air conditioning system and its control method and automobile

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