CN115986886A - Battery pack charging control method and electronic equipment - Google Patents
Battery pack charging control method and electronic equipment Download PDFInfo
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Abstract
The application discloses a battery pack charging control method and electronic equipment, wherein the method comprises the following steps: acquiring a charging preset parameter from charging equipment, wherein the charging preset parameter at least comprises maximum limit power and current power; monitoring whether a preset charging parameter changes in the current charging process; if the current charging current is changed, adjusting the current charging current according to the changed preset charging parameters, wherein the charging current is related to the current power; and adjusting the charging current to be matched with the changed charging preset parameters. The charging current is adjusted to be matched with the changed charging preset parameters, so that the charging parameters of the electronic equipment are dynamically adjusted through software, the charging equipment can adapt to different charging equipment without hardware, the charging adaptability is improved, and the manufacturing cost of the equipment can be reduced.
Description
Technical Field
The present disclosure relates to the field of battery management, and more particularly, to a battery pack charging control method and an electronic device.
Background
Nowadays, lithium batteries are widely used in different kinds of electronic devices as an important energy storage device.
In the charging process of the lithium battery, in order to implement a more intelligent charging control mode, a control chip is usually arranged on a protection circuit for controlling the lithium battery by the charging device and the electronic device, and the intelligent control of the charging process is implemented through a communication and charging control protocol between the charging device and the electronic device. Specifically, the charging process can be separated into different gears, and has different charging powers and corresponding charging current adjustments.
In the adjustment process of charging, the adjustment is usually realized by hardware control, for example, gear shifting is performed by a dedicated power management chip, so as to adjust different charging powers and corresponding charging currents. However, due to the difference of the charging control protocols, different charging control protocols need to be provided with matched hardware designs between the charging device and the electronic device at the same time, and if the charging control protocols are not matched, the charging device and the electronic device cannot be used, so that the charging device and the electronic device cannot be used universally, the manufacturing cost of hardware is high, and resource waste is easily caused due to poor compatibility among the devices.
Disclosure of Invention
The application provides a battery pack charging control method and electronic equipment, which can reduce the manufacturing cost of the electronic equipment and improve the compatibility of the charging equipment.
The embodiment of the application provides a battery pack charging control method, which is applied to a control module, wherein the control module is used for being in communication connection with charging equipment, and the method comprises the following steps:
acquiring a charging preset parameter from charging equipment, wherein the charging preset parameter at least comprises maximum limit power and current power;
monitoring whether a preset charging parameter changes in the current charging process;
if the current charging current is changed, adjusting the current charging current according to the changed preset charging parameters, wherein the charging current is related to the current power;
and adjusting the charging current to be matched with the changed charging preset parameters.
In one embodiment, the preset charging parameters further include a maximum limit voltage, a maximum limit current and/or a maximum gear power;
the monitoring whether the preset charging parameter changes in the current charging process includes at least one of the following:
monitoring whether the maximum limit voltage changes;
monitoring whether the maximum limiting current changes;
and monitoring whether the maximum power of the gears changes or not.
In an embodiment, the monitoring whether the preset charging parameter changes during the current charging process includes:
judging whether the preset charging parameter is increased or decreased;
the self-adaptively adjusting the current charging current according to the changed preset charging parameter includes:
and if the preset charging parameter is updated and is not increased or decreased, setting the charging current as a starting point current, wherein the starting point current is smaller than the current charging current.
In an embodiment, the adjusting the charging current to match the changed charging preset parameter includes:
acquiring actual charging parameters, wherein the actual charging parameters at least comprise at least one of actual voltage, actual current and actual power of the current battery pack;
judging whether the actual charging parameters are matched with the preset charging parameters or not;
if not, adjusting the current charging current step by step to enable the charging current to be matched with the preset charging parameter.
In an embodiment, the determining whether the actual charging parameter matches the preset charging parameter includes:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter;
judging whether the current charging actual parameters are matched with the corresponding maximum limit power, the maximum limit current or the maximum limit voltage or not;
the step-by-step adjustment of the current charging current to match the charging current with the preset charging parameters comprises:
if the charging current is smaller than the maximum limiting current, acquiring a preset first current stepping value;
increasing the first current step value on the basis of the charging current until the adjusted charging current matches the maximum limiting current.
In an embodiment, the determining whether the actual charging parameter matches the preset charging parameter includes:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter;
judging whether the current charging actual parameters are matched with the corresponding maximum limit power, the maximum limit current or the maximum limit voltage or not;
the step-by-step adjustment of the current charging current to match the charging current with the preset charging parameters comprises:
if the charging current is larger than the maximum limiting current, acquiring a preset second current stepping value;
subtracting the second current step value on the basis of the charging current until the adjusted charging current is matched to the maximum limit current.
In an embodiment, the preset charging parameter further includes a current gear maximum power;
the adjusting the charging current to match the changed charging preset parameters comprises:
judging whether the working voltage of the current battery pack reaches a cut-off CV voltage or not;
and if so, taking the current power as the maximum gear power.
In an embodiment, after adjusting the charging current to match the changed preset charging parameter, the method further includes:
judging whether the charging equipment is powered down or not;
if so, taking the maximum gear power corresponding to the cut-off CV voltage at the last time as initial power;
and when the next charging start is detected, charging is carried out based on the charging current corresponding to the initial power.
In an embodiment, the adjusting the current charging current according to the changed preset charging parameter includes:
and adjusting the current charging current by using a PWM current control mode according to the changed preset charging parameters.
The application also discloses an electronic device, which comprises a control module and a battery pack, wherein the control module is in communication connection with the battery pack, and the control module is also used for being in communication connection with a charging device; the control module includes:
a processor; and
a memory having a computer program stored therein, the processor being configured to execute the battery pack charging control method according to any one of the above by calling the computer program stored in the memory.
As can be seen from the above, in the battery pack charging control method and the electronic device of the present application, the charging preset parameter is obtained from the charging device, the charging current is adjusted based on whether the charging preset parameter changes or not, and the charging current is adjusted to match the charging preset parameter after the change, so that the charging parameter of the electronic device is dynamically adjusted through software, and different charging devices can be adapted without using hardware, thereby improving the charging adaptability and reducing the device manufacturing cost.
Drawings
Fig. 1 is a flowchart illustrating an implementation of a battery pack charging control method according to an embodiment of the present disclosure.
Fig. 2 is a flowchart illustrating an implementation of adjusting a charging current according to an embodiment of the present disclosure.
Fig. 3 is a flowchart of another implementation of adjusting a charging current according to an embodiment of the present disclosure.
Fig. 4 is a flowchart of another implementation of a battery pack charging control method according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present application more readily appreciated by those skilled in the art, and thus will more clearly define the scope of the invention.
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, a flow chart of implementing a battery pack charging control method according to an embodiment of the present disclosure is shown.
The battery pack charging control method is applied to a control module, and the control module can be connected with a battery pack and is used for being in communication connection with a charging device. The control module can be used for controlling the charging process of the battery pack by acquiring parameters related to the charging of the charging equipment and the battery pack.
The battery pack may contain a single battery or a plurality of batteries, and the specific specification of the battery pack may be determined according to the requirement. The charging device may be a charger or an adapter commonly known in the art, and the charger or the adapter may provide corresponding preset charging parameters, such as maximum limit power, current power, etc., through the control chip to achieve control through the control module.
As shown in fig. 1, the battery pack charging control method may include the following steps.
101. The method comprises the steps of obtaining charging preset parameters from charging equipment, wherein the charging preset parameters at least comprise maximum limit power and current power.
The charging device may directly or indirectly obtain a preset charging parameter from the control chip, where the preset charging parameter may include maximum limit Power (Plimit) and current Power (Power _ cur), the maximum limit Power and the current Power may be determined according to a preset parameter in the charging device, and a specific value may be determined according to an actual situation.
Of course, the preset charging parameter of the charging device may also include other parameters, such as the current maximum limit power (Pin _ max), or individual maximum limit voltage (Vlimit), maximum limit current (Ilimit), and other values related to the charging parameter, which is not limited herein.
102. And monitoring whether the preset charging parameter in the current charging process changes.
The charging preset parameters for monitoring may include maximum limit power, current power, and the like, and whether the current charging preset parameters change or not is judged, and whether the charging parameters corresponding to the current charging state need to be changed or not can be determined, so that active adjustment of the charging parameters such as charging current in the changed charging state can be performed to adapt to the charging preset parameters corresponding to different charging states.
In one embodiment, the charging preset parameters further include a maximum limit voltage, a maximum limit current, and/or a gear maximum power. The monitoring of whether the preset charging parameter changes in the current charging process includes at least one of the following: monitoring whether the maximum limit voltage changes; monitoring whether the maximum limiting current changes; and monitoring whether the maximum power of the gears changes or not.
The charging equipment can be provided with a plurality of charging gears, the charging power, the charging current and the charging power of different charging gears are possibly different, and at the moment, whether the current charging strategy is adjusted or not can be determined by monitoring whether the maximum power of the current gear is changed or not.
Whether the charging equipment has the condition of updating and adjusting or not can be timely confirmed by monitoring the maximum limiting voltage, the maximum limiting current and the maximum gear power, so that the charging strategy is timely adjusted, the damage to the battery pack caused by the overlarge power, voltage or current is avoided, and meanwhile, the charging current and the charging power of the battery pack can be timely increased when the charging preset parameters of the charging equipment are increased.
In an embodiment, if there is a change, different flag bits may be set for calibration, for example, the flag Bit is defined as Bit1, and if the maximum limiting current in the charging preset parameter is increased, the flag Bit is set as Bit1=0, and then it may be determined whether the current charging current needs to be adjusted by detecting the flag Bit. For example, if Bit1=0 is detected, the charging current is increased. Of course, a plurality of different identification bits may be provided, so that different variation states of the charging preset parameter can be determined.
103. And if the current charging current is changed, adjusting the current charging current according to the changed preset charging parameters, wherein the charging current is related to the current power.
The charging current is related to the current power, i.e. when the charging voltage is determined, the charging current can be determined according to the current power. For example, if the charging voltage is 5V and the present power of the charge acquired from the charging device is 20W, the charging current is 4A.
In particular, the adjustment of the charging current may be achieved in a variety of ways. For example, the charging current may be controlled by PWM, and the duty ratio of PWM is adjusted to achieve the effect of adjusting the charging current. For another example, the effect of adjusting the charging current is achieved by adjusting or switching the internal resistance value. The specific charging current adjustment mode may be determined by the actual charging mode.
In an embodiment, if the current maximum limiting power is increased and the maximum limiting voltage is not changed, the charging current may be increased, so that the charging power in the charging process reaches the current maximum limiting power to increase the charging power in the current gear.
In another embodiment, if the current maximum limit power is decreased and the maximum limit voltage is not changed, the charging current may be decreased, so that the charging current in the charging process is decreased to the current maximum limit power, thereby decreasing the charging power of the current gear.
Of course, the change of the different preset charging parameters can be performed by adopting different charging current adjusting modes, so that the parameters after the charging current is adjusted are matched with the control of the charging equipment as much as possible.
104. And adjusting the charging current to be matched with the changed charging preset parameters.
In the adjusting process of the charging current, the preset charging current value corresponding to the charging preset parameter and the charging current in the actual charging process are compared in size, so that whether the current charging current can be matched with the charging preset parameter or not is judged. The preset charging parameters may include maximum limit power, maximum limit voltage, maximum limit current, and the like, which may be matched by adjusting the charging current.
For example, if the current maximum limit power changes from 20W to 40W, the charging voltage is 5V, and the current charging current is 4A, it is known that the charging power corresponding to the current charging current is 20W, and it can be known that the current charging current does not match the current maximum limit power. The charging current may be increased continuously so that the charging current is increased to 8A and the corresponding charging power reaches 40W, or the charging current is close to 8A and the corresponding charging power is close to 40W, so that the current charging current matches the changed preset charging parameter. Of course, the charging voltage and the charging power may be adjusted based on different values, which is not limited in the present application.
Furthermore, if the charging current is not completely adjusted to the position in one adjustment, the changed charging preset parameters can be approached through multiple adjustments and multiple comparisons, and finally the adjusted parameters can be matched with the changed charging preset parameters.
It can be understood that the specific adjustment mode can be set according to the actual requirement,
by the above, the charging preset parameters are acquired from the charging equipment, the charging current is adjusted based on the judgment of whether the charging preset parameters change, and the charging current is adjusted to be matched with the changed charging preset parameters, so that the charging parameters of the electronic equipment are dynamically adjusted through software, the charging equipment can adapt to different charging equipment without hardware, the charging adaptability is improved, and the manufacturing cost of the equipment can be reduced.
Referring to fig. 2, a flow of implementing the charging current adjustment provided in the embodiment of the present application is shown.
As shown in fig. 2, the monitoring whether the preset charging parameter changes during the current charging process may further include the following steps:
201. and judging whether the preset charging parameter is increased or decreased. And if the charging preset parameter is changed and is not increased or decreased, setting the charging current as the starting point current.
The preset charging parameters may further include one or more of a maximum limit voltage, a maximum limit current, and/or a maximum gear power.
The charging preset parameter of the charging equipment can be acquired, and then the charging preset parameter is compared with the charging preset parameter of the charging equipment acquired last time, so that whether the charging equipment is increased or decreased is judged. Specifically, the preset charging parameter may be obtained under a certain condition according to a requirement. For example, the acquisition may be performed at regular time, or may be triggered by conditions (for example, the battery pack power is greater than a preset value, the battery pack temperature is higher than a preset value, or the like, or may be triggered by whether to enter/exit the charging state), which may be determined according to actual situations.
Then, the adaptively adjusting the current charging current according to the changed preset charging parameter may further include the following steps:
202. setting the charging current to a starting current, the starting current being less than the present charging current.
If the charging preset parameter changes but does not become larger or becomes smaller, the charging current is set as the starting point current.
The starting point current may be set according to actual conditions, for example, to a low value, so as to ensure the charging safety of the battery pack. For example, if the CV trickle charge state is monitored, the maximum limit power is adjusted to a small value, and if the battery is still charged with a large charging current, the battery may be damaged.
In one embodiment, the starting point current may be set to 2% of the maximum limit current, so that the charging safety can be ensured when the preset charging parameter becomes small.
In another embodiment, the starting current may be set to the charging current at which the battery pack enters a trickle CV state of charge.
It is understood that the current value of the starting current may be determined according to actual requirements, for example, a current less than 10% is set, and the like, which is not limited in this application.
After the charging current is set as the starting point current, the method may include the following steps:
203. and adjusting the charging current to be matched with the changed charging preset parameters.
Specifically, after the charging current is set to the starting current, if the charging current is not matched with the charging preset parameter, such as a small value, the charging current may be gradually increased from the starting current until the charging current is matched with the charging preset parameter.
The charging current adjusting mode in fig. 2 can adjust the charging current, so that the charging current can be matched with the protection condition of the battery pack in time, the charging adaptive capacity is improved, and the condition that the battery pack is damaged due to overlarge current in the charging process is avoided.
Referring to fig. 3, another implementation flow for adjusting the charging current according to the embodiment of the present disclosure is shown.
As shown in fig. 3, the determining whether the actual charging parameter matches the preset charging parameter includes:
301. and acquiring the maximum limit power, the maximum limit current or the maximum limit voltage of the preset charging parameter.
The maximum limit power (Plimit), the maximum limit current (Ilimit) and the maximum limit voltage (Vlimit) are all safe charging parameters in the current charging process, and the parameters can be obtained from the charging equipment.
302. And judging whether the current charging actual parameters are matched with the corresponding maximum limit power, maximum limit current or maximum limit voltage.
The charging actual parameter may include a charging current, a charging voltage or a charging power currently input by the charging device, or may be a charging current, a charging voltage or a charging power actually detected by the battery pack.
Comparing the current charging current with the maximum limiting current, comparing the current charging voltage with the maximum limiting voltage or comparing the current charging power with the maximum limiting power, and judging whether the actual charging parameters are matched with the corresponding maximum limiting power, the maximum limiting current or the maximum limiting voltage according to the comparison result.
If the current charging actual parameter is not matched with the corresponding maximum limiting power, maximum limiting current or maximum limiting voltage, the current charging current is adjusted step by step so as to enable the charging current to be matched with the charging preset parameter. This step may specifically include 303-307.
303. And if the charging current is smaller than the maximum limiting current, acquiring a preset first current stepping value.
In one implementation, if the actual charging parameter does not match the preset charging parameter, and the current charging current is smaller than the obtained maximum limiting current, it may be determined that the current charging current does not reach the preset current amount.
At this time, the charging current may be increased based on a preset step value to ensure that the charging current can be increased more safely and reach the current maximum limit current. Specifically, a preset first current step value may be obtained, and the charging current may be adjusted in a step-by-step manner based on the first current step value. The first current step value may take a smaller value, such as a current value of 0.5% -5% of the maximum output current. Such as 0.5%, 1%, 2%, or 5%, etc., which can be determined according to actual requirements, and is not limited in this application.
The first current step value may be stored in a memory of the electronic device, or may be obtained from the charging device or other external devices.
304. The first current step value is increased on the basis of the charging current until the adjusted charging current matches the maximum limiting current.
After the first current stepping value is increased each time, the first current stepping value can be compared with the maximum limiting current, whether the charging current of which the first current stepping value is increased currently reaches the maximum limiting current or not is judged, if so, the adjustment of the charging current is finished, and if the adjusted charging current is still smaller than the maximum limiting current, the first current stepping value is further increased on the basis of the current charging current until the adjusted charging current is matched with the maximum limiting current.
In an embodiment, to further ensure charging safety, the maximum charging current may be lower than the maximum limit current, for example, if the charging device currently has a charging current of Iin and a maximum limit current of Iin _ max, iin < Iin _ max-a may be set, where a is an arbitrary value, for example, 0.1A or 0.5-2% of the maximum limit current. It can be ensured that the charging current is always less than the maximum limiting current.
305. And if the charging current is larger than the maximum limiting current, acquiring a preset second current stepping value.
In one implementation, if the charging actual parameter does not match the charging preset parameter, and the current charging current is smaller than the obtained maximum limiting current, it may be considered that the current charging current reaches and exceeds the preset current amount.
At this time, the charging current can be reduced based on the preset step value, so as to ensure that the charging current can be as small as possible than the current maximum limiting current, and avoid the influence of the overlarge charging current on the equipment. Specifically, a preset second current step value may be obtained, and the charging current may be adjusted in a step-by-step manner based on the second current step value. The second current step value may take a smaller value, such as a current value of 0.5% -5% of the maximum output current. Such as 0.5%, 1%, 2%, or 5%, etc., which can be determined according to actual requirements, and is not limited in this application.
The second current step value may be stored in a memory of the electronic device, or may be obtained from the charging device or other external devices.
306. The second current step value is subtracted on the basis of the charging current.
After the second current step value is reduced each time, the second current step value can be compared with the maximum limiting current, whether the charging current reduced by the second current step value is smaller than the maximum limiting current or not is judged, if yes, the adjustment of the charging current is finished, and if the adjusted charging current is still larger than the maximum limiting current, the second current step value is further subtracted on the basis of the current charging current until the adjusted charging current is matched with the maximum limiting current.
In one embodiment, to further ensure charging safety, the maximum charging current may be lower than the maximum limit current, for example, if the charging device currently has a charging current of Iin and a maximum limit current of Iin _ max, then Iin < Iin _ max-a may be set, where a is an arbitrary value, for example, 0.1A or 0.5-2% of the maximum limit current. It can be ensured that the charging current is always less than the maximum limiting current.
307. The adjusted charging current matches the maximum limiting current.
In an embodiment, in order to ensure that the adjusted charging current matches the maximum limiting current, a comparison between the charging current and the maximum limiting current may be performed in a cyclic determination manner, so as to determine whether matching is possible.
Further, in one implementation manner, an identifier may be set to assist the determination, for example, if a preset charging parameter changes, or a magnitude relationship exists between the adjusted charging current and the maximum limiting current, and the like, the identifier may be set to determine parameters of different identifiers at a later stage, and then a corresponding policy for adjusting the charging current is implemented (for example, increasing/decreasing the charging current, setting a starting point current, and the like).
Referring to fig. 4, another implementation flow of the battery pack charging control method according to the embodiment of the present application is shown.
As shown in fig. 4, the method for controlling charging of a battery pack may further include:
401. and judging whether the working voltage of the current battery pack reaches the cut-off CV voltage or not.
The cut-off CV voltage is a trickle charge voltage when the charging is nearly completed, and the working voltage of the battery pack at the moment can be detected, and whether the working voltage of the current battery pack reaches the cut-off CV voltage or not can be judged by a technical means.
402. And taking the current power as the maximum gear power.
403. And judging whether the charging equipment is powered down or not.
When no power input is detected after the charging device is removed, the power failure can be determined. And if the power failure signal of the charging equipment is not detected, determining that the power failure is not present.
404. And taking the maximum power of the gear corresponding to the last cut-off CV voltage as the initial power.
405. The next start of charging is detected.
Wherein the detection of the next start of charging is from a no-charge state to an entry into a charge state. The detection mode can be judged by detecting corresponding zone bits or detecting a voltage change rule and the like.
406. And charging based on the charging current corresponding to the initial power.
After power failure, the device cannot judge the charging condition of the current battery pack, and if large-current charging is adopted, the battery pack and the electronic device are easily damaged.
In this embodiment, the maximum power of the gear corresponding to the last cut-off CV voltage is used as the initial power, so that it can be ensured that the battery pack can be charged with lower power and corresponding lower charging current when being powered on, and therefore, the electronic device can protect the charging safety of the battery pack through simple software implementation, and the situation that the battery pack is damaged due to the fact that the charging current is too large when being charged is avoided.
It is understood that the steps of the embodiments in fig. 1-4 may be performed in any order, as desired, and the embodiments in the figures are not necessarily in the only order.
Referring to fig. 5, a structure of an electronic device according to an embodiment of the present application is shown.
As shown in fig. 5, the electronic device 10 includes a control module 11 and a battery pack 12, the control module 11 is communicatively connected to the battery pack 12, and the control module 11 is further configured to be communicatively connected to a charging device 20. The control module 11 includes a processor 111 and a memory 112, and the processor 111 is electrically connected to the memory 112;
the memory 112 stores a computer program, and the processor 111 executes the following steps by calling the computer program stored in the memory 112:
acquiring a preset charging parameter from the charging device 20, wherein the preset charging parameter at least comprises maximum limit power and current power; monitoring whether a preset charging parameter changes in the current charging process; if the current charging current is changed, adjusting the current charging current according to the changed preset charging parameters, wherein the charging current is related to the current power; and adjusting the charging current to be matched with the changed charging preset parameters.
In an embodiment, the processor 111 may be further configured to:
monitoring whether a preset charging parameter in the current charging process changes or not, wherein the preset charging parameter comprises at least one of the following parameters: monitoring whether the maximum limit voltage changes; monitoring whether the maximum limiting current changes; and monitoring whether the maximum power of the gears changes or not.
In an embodiment, the processor 111 may be further configured to:
judging whether the charging preset parameter is increased or decreased; adaptively adjusting the current charging current according to the changed preset charging parameter, including: and if the charging preset parameter is updated and is not increased or decreased, setting the charging current as a starting point current, wherein the starting point current is smaller than the current charging current.
In an embodiment, the processor 111 may be further configured to:
acquiring actual charging parameters, wherein the actual charging parameters at least comprise at least one of actual voltage, actual current and actual power of the current battery pack 12; judging whether the actual charging parameters are matched with the preset charging parameters or not; if not, adjusting the current charging current step by step so as to enable the charging current to be matched with the preset charging parameter.
In an embodiment, the processor 111 may be further configured to:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter; judging whether the current charging actual parameters are matched with the corresponding maximum limiting power, maximum limiting current or maximum limiting voltage; adjusting the current charging current step by step to match the charging current with the preset charging parameters, including: if the charging current is smaller than the maximum limiting current, acquiring a preset first current stepping value; the first current step value is increased on the basis of the charging current until the adjusted charging current matches the maximum limiting current.
In an embodiment, the processor 111 may be further configured to:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter; judging whether the current charging actual parameters are matched with the corresponding maximum limiting power, maximum limiting current or maximum limiting voltage;
adjust present charging current step by step to make charging current and the parameter matching of predetermineeing of charging, include: if the charging current is larger than the maximum limiting current, acquiring a preset second current stepping value; the second current step value is subtracted from the charging current until the adjusted charging current matches the maximum limiting current.
In an embodiment, the preset charging parameter further includes a current gear maximum power, and the processor 111 is further configured to:
the adjusting the charging current to match the changed charging preset parameters comprises:
judging whether the current working voltage of the battery pack 12 reaches the cut-off CV voltage; and if so, taking the current power as the maximum power of the gear.
In an embodiment, the processor 111 may be further configured to:
determining whether the charging device 20 is powered down; if so, taking the maximum gear power corresponding to the last cut-off CV voltage as the initial power; and when the next charging start is detected, charging is carried out based on the charging current corresponding to the initial power.
In an embodiment, the processor 111 may be further configured to:
and adjusting the current charging current by using a PWM current control mode according to the changed preset charging parameters.
It is understood that the type of the processor 111 and the memory 112 may be any type according to the requirement, for example, an arithmetic processing unit such as a CPU, an MCU, an FPGA, or an ASIC is used as the processor 111, and the present application is not limited thereto.
The electronic device may be an electronic device with a battery cell, such as a smart phone, a portable computer, a dust collector, or other electronic devices that need to estimate the SOC value.
The electronic device may sample an input voltage value and an input current value of the battery cell and the charging device connected to the battery cell through some sampling modules, and provide the sampled values to the Processing module for estimating the SOC value, for example, the Processing module commonly used in the art, such as an MCU (micro controller Unit), a CPU (Central Processing Unit), or an SOC (System on Chip), may also be other Chip modules having a data Processing capability, such as an FPGA module, and the application is not limited thereto. After the SOC value is obtained, the SOC value may be displayed to the user through a display device, a speaker, or other manners, which are not limited.
In the electronic equipment of this application, through obtaining the preset parameter that charges from battery charging outfit, whether change based on the preset parameter that judges to charge adjusts charging current, utilize the adjustment charging current to make its and the preset parameter that charges after the change match to the realization is carried out dynamic adjustment to electronic equipment's charging parameter through software, need not to use the different battery charging outfit of hardware adaptation, has improved the suitability that charges, and can reduce equipment manufacturing cost.
In this embodiment, the electronic device and the battery pack charging control method in the above embodiments belong to the same concept, and any method step provided in the battery pack charging control method embodiment may be executed on the electronic device, and a specific implementation process thereof is described in detail in the battery pack charging control method embodiment, and any combination of the method steps may be adopted to form an optional embodiment of the present application, and details are not described here again.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (10)
1. A battery pack charging control method is applied to a control module, the control module is used for being in communication connection with charging equipment, and the method is characterized by comprising the following steps:
acquiring a charging preset parameter from charging equipment, wherein the charging preset parameter at least comprises maximum limit power and current power;
monitoring whether a preset charging parameter changes in the current charging process;
if the current charging current is changed, adjusting the current charging current according to the changed preset charging parameters, wherein the charging current is related to the current power;
and adjusting the charging current to be matched with the changed charging preset parameters.
2. The battery pack charge control method according to claim 1, wherein the charge preset parameters further include a maximum limit voltage, a maximum limit current, and/or a gear maximum power;
the monitoring whether the preset charging parameter changes in the current charging process includes at least one of the following steps:
monitoring whether the maximum limit voltage changes;
monitoring whether the maximum limiting current changes;
and monitoring whether the maximum power of the gears changes or not.
3. The method as claimed in claim 2, wherein the monitoring whether the preset charging parameter changes during the current charging process comprises:
judging whether the preset charging parameter is increased or decreased;
the self-adaptively adjusting the current charging current according to the changed preset charging parameter includes:
and if the preset charging parameter is updated and is not increased or decreased, setting the charging current as a starting point current, wherein the starting point current is smaller than the current charging current.
4. The method of claim 1, wherein the adjusting the charging current to match the changed charging default parameter comprises:
acquiring actual charging parameters, wherein the actual charging parameters at least comprise at least one of actual voltage, actual current and actual power of the current battery pack;
judging whether the actual charging parameters are matched with the preset charging parameters or not;
if not, adjusting the current charging current step by step to enable the charging current to be matched with the preset charging parameter.
5. The method as claimed in claim 4, wherein the determining whether the actual charging parameter matches the preset charging parameter comprises:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter;
judging whether the current charging actual parameters are matched with the corresponding maximum limiting power, maximum limiting current or maximum limiting voltage;
the step-by-step adjustment of the current charging current to match the charging current with the preset charging parameter includes:
if the charging current is smaller than the maximum limiting current, acquiring a preset first current stepping value;
increasing the first current step value on the basis of the charging current until the adjusted charging current matches the maximum limiting current.
6. The method of claim 4, wherein determining whether the actual charging parameter matches the preset charging parameter comprises:
acquiring maximum limit power, maximum limit current or maximum limit voltage of a charging preset parameter;
judging whether the current charging actual parameters are matched with the corresponding maximum limiting power, maximum limiting current or maximum limiting voltage;
the step-by-step adjustment of the current charging current to match the charging current with the preset charging parameter includes:
if the charging current is larger than the maximum limiting current, acquiring a preset second current stepping value;
subtracting the second current step value on the basis of the charging current until the adjusted charging current matches the maximum limiting current.
7. The battery pack charge control method according to claim 1, wherein the preset charge parameter further includes a current gear maximum power;
the adjusting the charging current to match the changed charging preset parameters comprises:
judging whether the working voltage of the current battery pack reaches a cut-off CV voltage or not;
and if so, taking the current power as the maximum gear power.
8. The method of claim 7, wherein after adjusting the charging current to match the changed charging default parameter, further comprising:
judging whether the charging equipment is powered off or not;
if so, taking the maximum gear power corresponding to the cut-off CV voltage at the last time as initial power;
and when the next charging start is detected, charging is carried out based on the charging current corresponding to the initial power.
9. The method according to any one of claims 1 to 8, wherein the adjusting the present charging current according to the changed preset charging parameter comprises:
and adjusting the current charging current by using a PWM current control mode according to the changed preset charging parameters.
10. The electronic equipment is characterized by comprising a control module and a battery pack, wherein the control module is in communication connection with the battery pack and is also used for being in communication connection with charging equipment; the control module includes:
a processor; and
a memory in which a computer program is stored, the processor being configured to execute the battery pack charging control method according to any one of claims 1 to 9 by calling the computer program stored in the memory.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310077265.0A CN115986886A (en) | 2023-01-13 | 2023-01-13 | Battery pack charging control method and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310077265.0A CN115986886A (en) | 2023-01-13 | 2023-01-13 | Battery pack charging control method and electronic equipment |
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| CN115986886A true CN115986886A (en) | 2023-04-18 |
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| CN202310077265.0A Pending CN115986886A (en) | 2023-01-13 | 2023-01-13 | Battery pack charging control method and electronic equipment |
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- 2023-01-13 CN CN202310077265.0A patent/CN115986886A/en active Pending
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