CN103000962B - A kind of battery control method, battery and electronic equipment - Google Patents
A kind of battery control method, battery and electronic equipment Download PDFInfo
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- CN103000962B CN103000962B CN201110274375.3A CN201110274375A CN103000962B CN 103000962 B CN103000962 B CN 103000962B CN 201110274375 A CN201110274375 A CN 201110274375A CN 103000962 B CN103000962 B CN 103000962B
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The object of the present invention is to provide a kind of battery control method, battery and electronic equipment, this battery control method is applied in a battery, battery is used for a load supplying, described method comprises first step and the second step of circulation execution, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold, in first step, control described battery and export to described load with the first electric current; In second step, control described battery is less than the current strength of described first electric current the second electric current with current strength and export to described load; When exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.The invention enables existing common batteries can enter operating state fast at low ambient temperatures, avoid the adverse effect that special low temperature battery capacity is low and hot operation characteristic difference band is next.
Description
Technical field
The invention belongs to electronic applications, particularly a kind of battery control method, battery and electronic equipment.
Background technology
Existing rechargeable battery is under cryogenic conditions (as 40 degrees below zero), and because the internal resistance of cell becomes large, cell output is very little, and cell voltage can be reduced under cut-ff voltage very soon, cannot meet the power requirement of electronic equipment.
For solving the problem by adopting special low temperature battery core, meet system hypothermia instructions for use.But inventor finds in the process realizing the embodiment of the present invention, it is low at least to there is low temperature battery energy density in prior art, and under equating volume, battery capacity is low, the shortcoming of low temperature battery hot operation characteristic difference.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of battery control method, battery and electronic equipment, make existing common batteries can enter operating state fast at low ambient temperatures, avoid the adverse effect that special low temperature battery capacity is low and hot operation characteristic difference band is next.
To achieve these goals, embodiments provide a kind of battery control method, described method is applied in a battery, described battery has a cut-ff voltage, described battery is used for a load supplying, and described method comprises first step and the second step of circulation execution, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold, wherein:
In described first step, control described battery and export to described load with the first electric current;
In described second step, control described battery is less than the current strength of described first electric current the second electric current with current strength and export to described load;
Wherein, when exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
Above-mentioned battery control method, wherein:
Described first step comprises:
Control described battery and export to described load with the first electric current, and start the first timer, the time of described load exported to by described first timer with described first electric current for recording, produce a very first time information;
When the described very first time information of described first timer record equals very first time thresholding, enter described second step.
And/or
Described second step comprises:
Control described battery and export to described load with described second electric current, and start the second timer, the time of described load exported to by described second timer with described second electric current for recording, and produces one second temporal information;
When described second temporal information of described second timer record equals the second time threshold, return and enter described first step.
Above-mentioned battery control method, wherein said first step specifically comprises:
Control described battery and export to described load with described first electric current;
When judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
When described first judged result indicates the first difference lower than the first voltage threshold, enter described second step.
Above-mentioned battery control method, wherein, described second step comprises:
Control described battery and export to described load with described second electric current;
When judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
When described second current voltage of described second judged result instruction is more than the second voltage threshold, return described first step.
Above-mentioned battery control method, wherein, described battery control method also comprises:
Monitor the temperature of described battery, obtain a temperature value;
When judge described temperature value higher than or equal described first temperature threshold time, terminate described circulation perform first step and second step.
Above-mentioned battery control method, wherein, described battery control method also comprises:
Terminate described circulation perform first step and second step after, control described battery and export with the 3rd electric current.
Above-mentioned battery control method, wherein, comprises before the first step that circulation performs and second step:
Obtain a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
According to described control command, obtain the state parameter that described battery is current;
The current expiration voltage of described battery is determined according to described state parameter;
Described cut-ff voltage is upgraded with described current expiration voltage.
Above-mentioned battery control method, wherein, described load is a heating module, and described heating module is attached at the surface of an element to be heated.
Above-mentioned battery control method, wherein, described load is the element in electronic equipment.
Above-mentioned battery control method, wherein, described load is a heating module, described heating module is attached at the surface of an element to be heated, the described first step that circulation performs and second step are until the temperature of described battery is higher than described first temperature threshold, and the temperature of described element to be heated terminates higher than during the second temperature threshold.
To achieve these goals, embodiments provide a kind of battery, described battery has a cut-ff voltage, and described battery is used for a load supplying, described battery:
At least one battery core;
One temperature sensor, for detecting the temperature of described battery;
One control module, exports the first electric current and the second electric current for controlling the circulation of described battery core to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature that detects of described temperature sensor higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery core is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
Above-mentioned battery, wherein:
Described control module comprises when described load exports the first electric current for controlling described battery core:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery core with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery core to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery core:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery core with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery core to described load.
Above-mentioned battery, wherein, control module specifically comprises when described load exports the first electric current for controlling described battery core:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery core to described load.
Above-mentioned battery, wherein, described control module comprises when described load exports the second electric current for controlling described battery core:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second current voltage of described second judged result instruction is more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery core to described load.
Above-mentioned battery, wherein, described battery also comprises:
Closing module, for the temperature that detects at described temperature sensor higher than or when equaling described first temperature threshold, close described control module.
Above-mentioned battery, wherein, also comprises:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
To achieve these goals, embodiments provide a kind of electronic equipment, have a battery in described electronic equipment, described battery has a cut-ff voltage, and described battery is used for a load supplying, also comprises in described electronic equipment:
One control module, exports the first electric current and the second electric current for controlling described circulating battery to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
Above-mentioned electronic equipment, wherein:
Described control module comprises when described load exports the first electric current for controlling described battery:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery to described load.
Above-mentioned electronic equipment, wherein, control module specifically comprises when described load exports the first electric current for controlling described battery:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery to described load.
Above-mentioned electronic equipment, wherein, described control module comprises when described load exports the second electric current for controlling described battery:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second current voltage of described second judged result instruction is more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery to described load.
Above-mentioned electronic equipment, wherein, described electronic equipment also comprises:
One temperature sensor, for detecting a temperature;
Closing module, for the described temperature that detects at described temperature sensor higher than or when equaling the 3rd temperature threshold, close described control module.
Above-mentioned electronic equipment, wherein, also comprises:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
The embodiment of the present invention has following beneficial effect:
The battery control method of the embodiment of the present invention, in battery and electronic equipment, by with the current discharge of larger current intensity, carry out powering load, and flow through battery itself by electric current and come to heating of battery, battery temperature is made to increase, but before the voltage of battery is reduced to cut-ff voltage, powering load is carried out with the electric current that current strength is less, cell voltage is gone up, whole process moves in circles, while ensureing that the voltage of battery maintains on cut-ff voltage, promote battery temperature, enter operating state fast, avoid the adverse effect that special low temperature battery capacity is low and hot operation characteristic difference band is next.
Accompanying drawing explanation
Figure 1 shows that the schematic flow sheet of first step when predetermined current and duration;
Figure 2 shows that the schematic flow sheet of second step when predetermined current and duration;
Figure 3 shows that the schematic flow sheet of first step when Real-time Obtaining cell voltage;
Figure 4 shows that the schematic flow sheet of second step when Real-time Obtaining cell voltage;
Fig. 5 is the structural representation of the battery of the embodiment of the present invention;
Fig. 6 is the structural representation of the control module of embodiment of the present invention predetermined current and duration.
Embodiment
The battery control method of the embodiment of the present invention, in battery and electronic equipment, by with the current discharge of larger current intensity, carry out powering load, and flow through battery itself by electric current and come to heating of battery, battery temperature is made to increase, but before the voltage of battery is reduced to cut-ff voltage, powering load is carried out with the electric current that current strength is less, cell voltage is gone up, whole process moves in circles, while ensureing that the voltage of battery maintains on cut-ff voltage, promote battery temperature, enter operating state fast, avoid the adverse effect that special low temperature battery capacity is low and hot operation characteristic difference band is next.
A kind of battery control method of the embodiment of the present invention, described method is applied in a battery, described battery has a cut-ff voltage, described battery is used for a load supplying, wherein said method comprises first step and the second step of circulation execution, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold, wherein:
In described first step, control described battery and export to described load with the first electric current;
In described second step, control described battery is less than the current strength of described first electric current the second electric current with current strength and export to described load;
Wherein, when described battery exports with described first electric current, the output voltage of described battery is in the reduction stage; When described battery exports with described second electric current, the output voltage of described battery is in the rise stage.
In specific embodiments of the invention, battery is with the first electric current powering load, and now battery and load forms a loop, and the first electric current can flow through battery simultaneously, and the internal resistance of cell is when the first electric current passes through, and can produce heat, carry out heating battery.
And described battery with described first electric current export time, because internal resistance own is larger, now output voltage can reduce, below cut-ff voltage is reduced in order to prevent cell voltage, described battery second electric current (current strength is less than the current strength of the first electric current) can be controlled and export to described load, the output voltage of battery is gone up.
Two processes hocket, and the output voltage of battery is maintained on cut-ff voltage, and carry out heating battery by the heating power of the internal resistance of cell simultaneously, realize the lifting of battery temperature.
The battery control method of the specific embodiment of the invention makes common battery also can enter operating state at low ambient temperatures, to power electronic equipment, and special low temperature battery core need not be used, avoid the adverse effect that special low temperature battery capacity is low and hot operation characteristic difference band is next.
In a particular embodiment of the present invention, the first step that circulation performs and second step keep the output voltage of described battery can be realized by real-time or default mode higher than cut-ff voltage, are respectively described below.
< predetermined manner >
In predetermined manner, pre-determine the duration of the current strength of described first electric current, the current strength of the second electric current, the duration of described first step and described second step, then in the first step and second step of circulation execution, the current strength preset according to this is respectively come load supplying, power supply maintains Preset Time, to keep the output voltage of battery higher than cut-ff voltage.
And the determination of the duration of the current strength of the current strength of the first electric current, the second electric current, the duration of described first step and described second step can be determined by experiment in advance, as xA powers T1 duration, (x-Δ) A powers T2 duration, xA powers T1 duration, (x-Δ) A powers T2 duration ....
In this case, described first step comprises as shown in Figure 1:
Step 11, controls described battery and exports to described load with the first electric current, and start a timer, and the time of described load exported to by described timer with described first electric current for recording, produce a very first time information;
Step 12, when the described very first time information of described timer record equals very first time thresholding, enters described second step.And/or
Described second step comprises as shown in Figure 2:
Step 21, controls described battery and exports to described load with described second electric current, and start described timer, and the time of described load exported to by described timer with described second electric current for recording, and produces one second temporal information;
Step 22, when described second temporal information of described timer record equals the second time threshold, returns described first step.
Under above-mentioned mode, due to can not be reduced to cell voltage during an electrical current by voltage time in advance by experiment mode determine, in concrete control procedure, ensure that battery is no more than this time with the duration of the first electrical current by timer, therefore, it is possible to ensure that cell voltage can not be reduced to cut-ff voltage.
< real-time mode >
In predetermined manner, be the mode pre-set, first need to obtain data by experiment, secondly, because battery constantly changes, so the data obtained before are likely no longer accurate after a while, so the embodiment of the present invention can also be controlled by real-time mode.
In real-time mode, described first step as shown in Figure 3, specifically comprises:
Step 31, controls described battery and exports to described load with described first electric current;
Step 32, when judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
Step 33, when described first judged result indicates the first difference lower than the first voltage threshold, enters described second step.
Under this mode, after the output voltage of battery reduces to a certain extent, as supposed, cut-ff voltage is xV, then when output voltage will enter second step for during (x+ Δ) V, recovered the voltage of battery by second step, the output voltage of battery can not be reduced under cut-ff voltage.
Under this real-time mode, second step as shown in Figure 4, comprising:
Step 41, controls described battery and exports to described load with described second electric current;
Step 42, when judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
Step 43, when described second current voltage of described second judged result instruction is more than the second voltage threshold, returns described first step.
When second step realizes in the above described manner, just described first step can be returned more than during the second voltage threshold at current voltage, first can ensure that the duration of first step can be longer, shorten the time that battery temperature gos up, meanwhile, the number of times of first step and second step switching can also be reduced.
In a particular embodiment of the present invention, circulation perform first step and second step until described battery temperature higher than or equal the first temperature threshold, this can ensure by arranging longer time of implementation certainly, but in order in time for electronic equipment provides electric service, therefore, best bet be certainly once battery temperature higher than or equal the first temperature threshold and just start normal power supply, therefore, under this mode, battery control method also comprises:
Monitor the temperature of described battery, obtain a temperature value;
When judge described temperature value higher than or equal the first temperature threshold time, terminate described circulation perform first step and second step.
According to temperature, the temperature of the described battery of this monitoring also determines whether that the step of end loop process can put execution at any time, as in the implementation of first step and/or the implementation of second step.
As found that the temperature of battery is higher than a thresholding, now just can terminate in the process of the first electric current powering load, and for example in the process of the second electric current powering load, find that the temperature of battery is higher than a thresholding, now also can terminate.
When specific embodiments of the invention are used for start process, when after the first step terminating described circulation execution and second step, control described battery and export with the 3rd electric current.
Electronic equipment is now made to enter the process of normal boot-strap, battery normal power supply.
The battery control method of the embodiment of the present invention needs to ensure in the process of heating of battery, the output voltage of battery is higher than cut-ff voltage, at this, this cut-ff voltage can pre-set, but consider the change along with time, environment, the cut-ff voltage of battery is also change, now, in order to control method is more accurate, comprise before the first step of the execution that can circulate and second step:
Obtain a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
According to described control command, obtain the state parameter that described battery is current;
The current expiration voltage of described battery is determined according to described state parameter;
Described cut-ff voltage is upgraded with described current expiration voltage.
In a particular embodiment of the present invention, the operation of this renewal cut-ff voltage can be carried out (as one week upgrades once, within one month, upgrades once or upgrades once for 1 year with some cycles, update cycle can be controlled by user), can not have during secondary start yet and all perform, in this no limit.
In the specific embodiment of the invention, this load can be existing element in electronic equipment (as hard disk, CPU, internal memory etc.), also can be a heating module (as resistive film) arranged in addition.
Under low temperature environment, the work being not only battery is affected, and the elements such as hard disk, CPU, internal memory also can be affected, therefore, in a particular embodiment of the present invention, in order to accelerate the firing rate of battery, this heating module can be attached at the surface of battery, but in order to make computer enter the state that can work sooner, also this heating module can be attached at the surface of element to be heated (as hard disk, CPU, internal memory etc.).
Certainly, in specific embodiments of the invention, the method enters the state that can work sooner in order to make computer, also this heating module can be attached at element to be heated (as hard disk, CPU, internal memory etc.) surface, but battery can enter operating state, do not show that other elements also can enter operating state, now, in the battery control method of the embodiment of the present invention, described load is a heating module, described heating module is attached at the surface of an element to be heated, the described first step that circulation performs and second step are until the temperature of described battery is higher than described first temperature threshold, and the temperature of described element to be heated terminates higher than during the second temperature threshold.
The battery of the embodiment of the present invention has a cut-ff voltage, and described battery is used for a load supplying, as shown in Figure 5, and described battery:
At least one battery core;
One temperature sensor, for detecting the temperature of described battery;
One control module, exports the first electric current and the second electric current for controlling the circulation of described battery core to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature that detects of described temperature sensor higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery core is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
Control module in above-mentioned battery comprises:
Described control module comprises when described load exports the first electric current for controlling described battery core:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery core with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery core to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery core:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery core with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery core to described load.
Composition graphs 6 is described as follows.
First control unit exports to described load for controlling described battery core with the first electric current, and starts described first timer;
First timer starts timing, and time when the first timer to T2, the first switch unit closes the first control unit, starts the second control unit;
Second control unit controls described battery core and exports to described load with the second electric current, and starts described second timer;
Time during the second timer to T3, the second switch unit closes the second control unit, starts the first control unit;
So move in circles, both ensure that the electric discharge of battery is to conducting self-heating, in turn ensure that the voltage of battery can not be reduced under cut-ff voltage.
Certainly, this control module can also use the mode controlled in real time, and in this case, control module specifically comprises when described load exports the first electric current for controlling described battery core:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery core to described load.
And described control module comprises when described load exports the second electric current for controlling described battery core:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second current voltage of described second judged result instruction is more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery core to described load.
Certainly, in order to make electronic equipment to work as early as possible, described battery also comprises:
Closing module, for the temperature that detects at described temperature sensor higher than or when equaling described first temperature threshold, close described control module.
In order to ensure the accuracy controlled, above-mentioned battery also comprises:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
A kind of electronic equipment of the embodiment of the present invention has a battery, and described battery has a cut-ff voltage, and described battery is used for a load supplying, also comprises in described electronic equipment:
One control module, exports the first electric current and the second electric current for controlling described circulating battery to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
Described control module can realize in the following way:
Described control module comprises when described load exports the first electric current for controlling described battery:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery to described load.
Certainly, this control module can also utilize as under type realizes:
Control module specifically comprises when described load exports the first electric current for controlling described battery:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery to described load.
Described control module comprises when described load exports the second electric current for controlling described battery:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second current voltage of described second judged result instruction is more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery to described load.
The electronic equipment of the embodiment of the present invention also comprises:
One temperature sensor, for detecting a temperature;
Closing module, for the described temperature that detects at described temperature sensor higher than or when equaling the 3rd temperature threshold, close described control module.
In a particular embodiment of the present invention, in a particular embodiment of the present invention, need to ensure that the temperature of battery is higher than the first temperature threshold, and the temperature source that temperature sensor detects is depended on for the setting of the 3rd temperature threshold, be divided into following several situation to be described as follows.
1, load is the element of electronic equipment internal, the ambient temperature of temperature sensor detected electrons device interior
When the ambient temperature of temperature sensor detected electrons device interior, because load is the element of electronic equipment internal, and the heat that the ambient temperature of electronic equipment internal and load supplying distribute is relevant, and now, the 3rd temperature threshold is greater than the first temperature threshold.
If the first temperature threshold is subzero 25 degree, and ambient temperature is subzero 30 degree, and when the ambient temperature of electronic equipment internal is subzero 25 degree, and the temperature of subzero 25 degree can ensure that associated electronic device normally works very well, then can think and reach the first temperature threshold.
2, load is the element of electronic equipment internal, and temperature sensor detects the temperature of load
When temperature sensor detects the temperature of load, because load is the element of electronic equipment internal, now, if the resistance of load is greater than the internal resistance of cell, then in same current situation, load heating is more, and then can be judged the temperature conditions of battery by component temperature.
Certainly, arranging those skilled in the art and can being obtained by conventional laboratory facilities of these concrete thresholdings, is not elaborated at this.
3, temperature sensor detects the temperature of battery
In this case, the 3rd temperature threshold is identical with the first temperature threshold.
In order to ensure the accuracy controlled, the electronic equipment of the embodiment of the present invention, is characterized in that, also comprises:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage under the current state calculating described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (22)
1. a battery control method, described method is applied in a battery, described battery has a cut-ff voltage, described battery is used for a load supplying, it is characterized in that, described method comprises first step and the second step of circulation execution, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold, wherein:
In described first step, control described battery and export to described load with the first electric current;
In described second step, control described battery is less than the current strength of described first electric current the second electric current with current strength and export to described load;
Wherein, when exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
2. battery control method according to claim 1, is characterized in that:
Described first step comprises:
Control described battery and export to described load with the first electric current, and start the first timer, the time of described load exported to by described first timer with described first electric current for recording, produce a very first time information;
When the described very first time information of described first timer record equals very first time thresholding, enter described second step;
And/or
Described second step comprises:
Control described battery and export to described load with described second electric current, and start the second timer, the time of described load exported to by described second timer with described second electric current for recording, and produces one second temporal information;
When described second temporal information of described second timer record equals the second time threshold, return and enter described first step.
3. battery control method according to claim 1, is characterized in that, described first step specifically comprises:
Control described battery and export to described load with described first electric current;
When judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
When described first judged result indicates the first difference lower than the first voltage threshold, enter described second step.
4. battery control method according to claim 3, is characterized in that, described second step comprises:
Control described battery and export to described load with described second electric current;
When judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
When described second judged result indicates the second current voltage more than the second voltage threshold, return described first step.
5. battery control method according to claim 1, is characterized in that, described battery control method also comprises:
Monitor the temperature of described battery, obtain a temperature value;
When judge described temperature value higher than or equal described first temperature threshold time, terminate described circulation perform first step and second step.
6. battery control method according to claim 5, is characterized in that, described battery control method also comprises:
Terminate described circulation perform first step and second step after, control described battery and export with the 3rd electric current.
7. according to the battery control method in claim 1-6 described in any one, it is characterized in that, comprise before the first step that circulation performs and second step:
Obtain a control command, described control command is used to indicate the cut-ff voltage calculated under the current state of described battery;
According to described control command, obtain the state parameter that described battery is current;
The current expiration voltage of described battery is determined according to described state parameter;
Described cut-ff voltage is upgraded with described current expiration voltage.
8. according to the battery control method in claim 1-6 described in any one, it is characterized in that, described load is a heating module, and described heating module is attached at the surface of an element to be heated.
9. according to the battery control method in claim 1-6 described in any one, it is characterized in that, described load is the element in electronic equipment.
10. according to the battery control method in claim 1-6 described in any one, it is characterized in that, described load is a heating module, described heating module is attached at the surface of an element to be heated, the circulation described first step of execution and second step are until the temperature of described battery is higher than described first temperature threshold, and the temperature of described element to be heated terminates higher than during the second temperature threshold.
11. 1 kinds of batteries, described battery has a cut-ff voltage, and described battery is used for a load supplying, it is characterized in that, described battery:
At least one battery core;
One temperature sensor, for detecting the temperature of described battery;
One control module, exports the first electric current and the second electric current for controlling the circulation of described battery core to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature that detects of described temperature sensor higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery core is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
12. batteries according to claim 11, is characterized in that:
Described control module comprises when described load exports the first electric current for controlling described battery core:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery core with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery core to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery core:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery core with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery core to described load.
13. batteries according to claim 11, is characterized in that, control module specifically comprises when described load exports the first electric current for controlling described battery core:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery core to described load.
14. batteries according to claim 13, is characterized in that, described control module comprises when described load exports the second electric current for controlling described battery core:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second judged result indicates the second current voltage more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery core to described load.
15., according to the battery in claim 11-14 described in any one, is characterized in that, described battery also comprises:
Closing module, for the temperature that detects at described temperature sensor higher than or when equaling described first temperature threshold, close described control module.
16., according to the battery in claim 11-14 described in any one, is characterized in that, also comprise:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage calculated under the current state of described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
17. 1 kinds of electronic equipments, have a battery in described electronic equipment, described battery has a cut-ff voltage, and described battery is used for a load supplying, it is characterized in that, also comprises in described electronic equipment:
One control module, exports the first electric current and the second electric current for controlling described circulating battery to described load, to keep the output voltage of described battery higher than cut-ff voltage, until the temperature of described battery higher than or equal the first temperature threshold;
Wherein: when exporting with described first electric current, the output voltage of described battery is in the reduction stage; When exporting with described second electric current, the output voltage of described battery is in the rise stage.
18. electronic equipments according to claim 17, is characterized in that:
Described control module comprises when described load exports the first electric current for controlling described battery:
First timer, described first timer is for generation of a very first time information;
First control unit, exports to described load for controlling described battery with the first electric current, and starts described first timer;
First switch unit, for when described very first time information equals very first time thresholding, performs the first handover operation, exports the second electric current to control described battery to described load;
And/or
Described control module comprises when described load exports the second electric current for controlling described battery:
Second timer, for generation of one second temporal information;
Second control unit, exports to described load for controlling described battery with the second electric current, and starts described second timer;
Second switch unit, for when described second temporal information equals the second time threshold, performs the second handover operation, exports the first electric current to control described battery to described load.
19. electronic equipments according to claim 17, is characterized in that, control module specifically comprises when described load exports the first electric current for controlling described battery:
3rd control unit, exports to described load for controlling described battery with described first electric current;
First judging unit, during for judging to export with described first electric current, whether the output voltage of described battery and the first difference of described cut-ff voltage be lower than the first voltage threshold, obtains the first judged result;
3rd switch unit, for when described first judged result indicates the first difference lower than the first voltage threshold, performs the 3rd handover operation, exports the second electric current to control described battery to described load.
20. electronic equipments according to claim 19, is characterized in that, described control module comprises when described load exports the second electric current for controlling described battery:
4th control unit, exports to described load for controlling described battery with described second electric current;
Second judging unit, during for judging to export with described second electric current, whether the output voltage of described battery is more than the second voltage threshold, obtains the second judged result;
4th switch unit, for when described second judged result indicates the second current voltage more than the second voltage threshold, performs the 4th handover operation, exports the first electric current to control described battery to described load.
21., according to the electronic equipment in claim 17-20 described in any one, is characterized in that, described electronic equipment also comprises:
One temperature sensor, for detecting a temperature;
Closing module, for the described temperature that detects at described temperature sensor higher than or when equaling the 3rd temperature threshold, close described control module.
22., according to the electronic equipment in claim 17-20 described in any one, is characterized in that, also comprise:
Instruction acquisition module, for obtaining a control command, described control command is used to indicate the cut-ff voltage calculated under the current state of described battery;
State parameter acquisition module, for according to described control command, obtains the state parameter that described battery is current;
Cut-ff voltage determination module, for determining the current expiration voltage of described battery according to described state parameter;
Update module, for upgrading described cut-ff voltage with described current expiration voltage.
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| CN201110274375.3A CN103000962B (en) | 2011-09-15 | 2011-09-15 | A kind of battery control method, battery and electronic equipment |
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| CN103401036B (en) * | 2013-07-24 | 2016-08-24 | 深圳市欧珀通信软件有限公司 | A kind of mobile terminal charging method and mobile intelligent terminal |
| US10243243B2 (en) | 2016-06-30 | 2019-03-26 | Lenovo (Beijing) Co., Ltd. | Battery and charging method |
| CN105978104B (en) * | 2016-06-30 | 2019-03-08 | 联想(北京)有限公司 | A kind of battery and electronic equipment |
| CN116054306B (en) * | 2022-07-20 | 2023-12-12 | 荣耀终端有限公司 | Power supply control method and electronic equipment |
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| CN1097081A (en) * | 1991-12-21 | 1995-01-04 | 迪特尔·布朗 | Be used to improve the circuit of the electric current output performance of rechargeable battery under low ambient temperature |
| CN1885667A (en) * | 2005-06-20 | 2006-12-27 | 纬创资通股份有限公司 | Power supply management method and system |
| JP4607087B2 (en) * | 2006-11-21 | 2011-01-05 | 日本電信電話株式会社 | Battery system and output current control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100669434B1 (en) * | 2005-04-07 | 2007-01-15 | 삼성에스디아이 주식회사 | Method for controlling secondary battery module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097081A (en) * | 1991-12-21 | 1995-01-04 | 迪特尔·布朗 | Be used to improve the circuit of the electric current output performance of rechargeable battery under low ambient temperature |
| CN1885667A (en) * | 2005-06-20 | 2006-12-27 | 纬创资通股份有限公司 | Power supply management method and system |
| JP4607087B2 (en) * | 2006-11-21 | 2011-01-05 | 日本電信電話株式会社 | Battery system and output current control method |
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