TWI821056B - Electronic device and reporting method of battery capacity - Google Patents

Abstract

An electronic device includes a battery, a battery gauge, and a processor. The battery is configured to power the electronic device. The battery gauge is configured to gauge the battery to generate a plurality of remaining capacities, a battery temperature, and a battery voltage. The processor is configured to read the plurality of remaining capacities in sequence. When it is read that the remaining capacity is equal to a cut-off capacity and a previous remaining capacity is greater than a preset capacity, the processor determines whether a predetermined condition is met according to the battery temperature and the battery voltage. When it is determined that the predetermined condition is met, the processor performs a capacity correction process. The capacity correction process includes using the previous remaining capacity as a correction capacity, and reporting the correction capacity to a system circuit.

Description

Electronic device and battery capacity reporting method

The present invention relates to battery capacity reporting, in particular to an electronic device and battery capacity reporting method suitable for low temperature environments.

Generally speaking, the remaining capacity of the battery is measured by a battery meter. Since temperature will affect the measurement of remaining capacity, battery meters usually compensate for the impact of temperature on remaining capacity based on a battery algorithm.

For batteries used at low temperatures, battery manufacturers currently set battery algorithm parameters based on a single low temperature temperature (for example, setting the low temperature temperature to -21 degrees Celsius) and a fixed load when manufacturing batteries. However, in actual use, the low temperature is variable, for example, it becomes -35 degrees Celsius. At this time, the battery algorithm will not be used enough, causing the remaining capacity of the battery to jump abnormally (%). For example, the remaining capacity changes from 50% jumps directly to 0%. As a result, the power supply time of the battery will be greatly shortened, and even the electronic device using the battery will be powered off momentarily and cannot be turned on.

In one embodiment, the present invention provides an electronic device. Electronic devices include batteries, battery meters and processors. The battery is used to power the electronic device. The battery meter is used to measure the battery to produce the battery's remaining capacity, battery temperature and battery voltage. The processor is used to read sequentially Plural remaining capacity. When it reads that the remaining capacity is equal to the cut-off capacity and the previous remaining capacity is greater than the preset capacity, the processor confirms whether the preset conditions are met based on the battery temperature and battery voltage. When it is confirmed that the preset conditions are met, the processor executes the capacity correction procedure. The capacity correction program includes the remaining capacity of the previous transaction as the correction capacity, and reporting the correction capacity to the system circuit.

In one embodiment, the present invention provides a battery capacity reporting method. The battery capacity reporting method includes: sequentially reading the remaining capacity generated by the battery meter to measure the battery; when the remaining capacity is read to be equal to the cut-off capacity and the previous remaining capacity is greater than the preset capacity, based on the battery temperature and battery voltage of the battery Confirm whether a preset condition is met; and when it is confirmed that the preset condition is met, execute a capacity correction procedure. The capacity correction program includes the remaining capacity of the previous transaction as the correction capacity, and reporting the correction capacity to the system circuit.

To sum up, the electronic device and battery capacity reporting method of any embodiment, when the battery algorithm is insufficient for use at low temperatures and causes the battery capacity display (or report) to abnormally jump, by executing the capacity The correction program generates and reports the correction capacity to the system circuit, so that the power supply time of the electronic device can be maintained normally and will not be shortened due to abnormal jumps. In addition, the electronic device implemented according to the battery capacity reporting method of any embodiment can display the battery capacity to the user according to the corrected capacity, so the user will not see the battery capacity jumping randomly, thereby improving the user experience. .

The detailed features and advantages of the present invention are described in detail below in the implementation mode. The content is sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it according to the content disclosed in this specification, the patent scope and the drawings. , anyone familiar with the relevant art can easily understand the relevant objectives and advantages of the present invention.

100: Electronic devices

110:Battery

120:Battery meter

130: Processor

140:System circuit

150:Storage unit

160:Power port

AC: power input

C1-CX: remaining capacity

FC: battery capacity

NC: corrected capacity

R1-RN: remaining capacity

TB: battery temperature

VB: battery voltage

S10~S60: steps

S501~S519: steps

FIG. 1 is a block diagram of an embodiment of an electronic device.

Figure 2 is a schematic flowchart of one embodiment of a battery capacity reporting method.

Figure 3 is a schematic flowchart of one embodiment of a capacity correction procedure.

Figure 4 is a schematic flowchart of one embodiment of a capacity correction procedure.

FIG. 5 is a schematic flowchart of part of an embodiment of the capacity correction process.

FIG. 6 is a schematic flowchart of an embodiment of part of the capacity correction procedure.

FIG. 7 is a schematic flowchart of an embodiment of part of the capacity correction procedure.

In order to make the above objects, features and advantages of the embodiments of the present invention more obvious and understandable, detailed descriptions are given below with reference to the accompanying drawings.

It must be understood that the word "comprising" used in this specification is used to indicate the presence of specific technical features, values, method steps, processes, components and/or components, but does not exclude the possibility of adding more technical characteristics, numerical values, method steps, work processes, components, components, or any combination of the above.

FIG. 1 is a block diagram of an embodiment of an electronic device. See Figure 1. The electronic device 100 includes a battery 110, a battery meter 120, and a processor 130. The battery meter 120 is coupled to the battery cell in the battery 110 , and the processor 130 is coupled to the battery meter 120 . In addition, the electronic device 100 further includes a system circuit 140 and a storage unit 150, and the processor 130 is coupled to the system circuit 140 and the storage unit 150.

The battery 110 stores electric power through its battery cells, and is used to provide the stored electric power to the electronic device 100 for use. In some implementations, the battery 110 may be a lithium-ion battery, a phosphorus Lithium-acid batteries, lithium polymer batteries, nickel-cadmium batteries, lead-acid batteries or any other type of battery suitable for secondary charging.

The battery meter 120 can be used to measure battery characteristics of the battery 110, such as remaining capacity R1-RN, battery temperature TB, battery voltage VB, etc., and output the measurement results to the processor 130. Here, the battery meter 120 can repeatedly measure the battery 110 at a measurement frequency to sequentially generate a plurality of remaining capacities R1-RN of the battery cells, the battery temperature TB, and the battery voltage VB. Among them, N is a positive integer greater than 1.

In some embodiments, the battery meter 120 can be disposed with the battery cell in a case (not shown) of the battery 110 , and the battery meter 120 can obtain the battery temperature by sensing the internal ambient temperature in the case of the battery 110 TB (such as sensing and generating the corresponding temperature through the temperature detection unit). However, the present invention is not limited thereto. The battery meter 120 can also obtain the battery temperature TB by electrically connecting to the battery core of the battery 110 . In addition, the battery meter 120 can use the open circuit voltage method or the coulomb measurement method to obtain the remaining capacity R1 - RN of the battery 110 , and the remaining capacity R1 - RN can represent the relative state of capacity (RSOC) of the battery 110 . The amount of electricity currently stored. In some implementations, the battery gauge 120 may be implemented using a gauge IC, but the invention is not limited thereto.

The processor 130 is used to sequentially read the plurality of remaining capacities R1-RN generated by the battery meter 120, and report corresponding battery capacities FC to the system circuit 140 according to the remaining capacities R1-RN. In some embodiments, the system circuit 140 may be configured to perform corresponding operations according to the battery capacity FC reported by the processor 130 . For example, the electronic device 100 is caused to display the battery capacity FC reported by the processor 130 on its display screen (not shown) for the user to see.

In some implementations, the processor 130 may utilize an embedded controller (EC), system on chip (SoC), central processing unit (CPU), microcontroller (MCU), special application integrated circuit ( ASIC), application processor (Application Processor, AP), digital signal processor (Digital Signal Processor, DSP), programmable logic device (PLD) or any other suitable electronic components. The system circuit 140 may include at least an operating system (OS). In addition, the storage unit 150 can be implemented by one or more storage elements, and each storage element can be, but is not limited to, non-volatile memory, such as read-only memory (ROM) or flash memory (Flash memory), or volatile memory. Memory, such as random access memory (RAM).

It is worth noting that, in order to clearly illustrate the present invention, FIG. 1 is a simplified block diagram in which only components related to the present invention are shown. For those with ordinary skill in the technical field of the present invention, it should be understood that the electronic device 100 may also include other components for providing other specific functions (eg, display, sound effects, etc.).

In some embodiments, the electronic device 100 can use the processor 130 to execute the battery capacity reporting method of any embodiment, so that when the electronic device 100 is used in a low temperature environment, the capacity of the battery 110 is displayed (or reported) (that is, represents the current battery capacity). The displayed value or reported value of the total amount of electricity stored in all battery cells of 110 will not cause abnormal jump (%) due to insufficient use of the battery algorithm (that is, the displayed or reported battery capacity does not decrease but starts from a certain level). The value suddenly jumps to another value). In this way, when the electronic device 100 is used in a low-temperature environment, the power supply time provided by the battery 110 to the electronic device 100 can be maintained normally and will not be shortened due to abnormal jumps. In addition, since the electronic device 100 can be modified according to the battery capacity reporting method of any embodiment, Display the capacity of the battery 110 to the user by displaying the positive capacity, so that the user will not see the capacity of the battery 110 jumping randomly, thereby improving the user experience.

Figure 2 is a schematic flowchart of one embodiment of a battery capacity reporting method. See Figure 1 and Figure 2. In one embodiment of the battery capacity reporting method, the electronic device 100 can sequentially read the remaining capacity R1-RN output by the battery meter 120 through the processor 130 (step S10).

In one embodiment of step S10, the processor 130 may receive the complex remaining capacity R1-RN generated by the battery meter 120 at a reading frequency. Next, the processor 130 may first perform data filtering on the remaining capacity R1-RN, and temporarily store the remaining capacity C1-CX after filtering out dirty data in the storage unit 150. Among them, X is a positive integer greater than 1 and less than or equal to N. Furthermore, each remaining capacity C1-CX is one of the remaining capacities R1-RN. After that, the processor 130 sequentially reads the remaining capacities C1-CX from the storage unit 150, and reports the battery capacity FC of the battery to the system circuit 140 at a reporting frequency according to the remaining capacities C1-CX. In some implementations, the reporting frequency is less than the reading frequency. The reading frequency may be, for example but not limited to, once per second.

After the processor 130 reads a remaining capacity from the storage unit 150 in step S10, the processor 130 first determines whether the remaining capacity of the current pen is equal to a cut-off capacity (step S20). In some implementations, the cutoff capacity may be, for example, but not limited to, 0%.

When the processor 130 determines that the remaining capacity of the current pen (taking the remaining capacity C1 as an example) is not equal to the cut-off capacity, the processor 130 will directly report the remaining capacity C1 of the current pen to the system circuit 140 (step S60), and return to step S10. , the remaining capacity of the next transaction (taking the remaining capacity C2 as an example) is read from the storage unit 150 and the judgment of the remaining capacity C2 of the next transaction is continued.

And so on, until in the judgment of a certain remaining capacity, such as the remaining capacity C8, if the processor 130 determines that the remaining capacity C8 is equal to the cut-off capacity, the processor 130 will proceed. One step is to confirm whether the previous remaining capacity, that is, whether the remaining capacity C7 is greater than a preset capacity (step S30), is used to determine whether the battery cell of the battery 110 has jumped. In some implementations, the preset capacity may be, but is not limited to, 1%.

When the confirmation result of the processor 130 in step S30 is that the remaining capacity C7 is less than or equal to the preset capacity (for example, the remaining capacity C7 is 1% and equal to the preset capacity), it means that the battery 110 is normally discharged to the cut-off capacity without jumping. Lying down situation. At this time, the processor 130 will execute step S60 to report the remaining capacity C8 of the current pen to the system circuit 140 .

When the confirmation result of the processor 130 in step S30 is that the remaining capacity C7 is greater than the preset capacity (for example, the remaining capacity C7 is 50% and is greater than the preset capacity), it means that the capacity of the battery 110 has jumped. At this time, the process The controller 130 will further confirm whether a preset condition is met based on the battery temperature TB and the battery voltage VB (step S40). In some embodiments, the preset condition is that the battery temperature TB is lower than a temperature threshold and the battery voltage VB is higher than a voltage threshold. In some implementations, the temperature threshold may be 0 degrees Celsius or other suitable temperature to indicate a low temperature, and the voltage threshold may be 3.1 volts or other suitable voltage value to indicate when the battery 110 is discharged.

When the confirmation result of the processor 130 in step S40 is that the preset condition is not met, for example, when the processor 130 determines in step S40 that the battery temperature TB is greater than the temperature threshold (that is, indicating that the battery 110 is not at a low temperature) and/or the battery voltage When VB is less than or equal to the voltage threshold (indicating that the battery 110 is indeed out of power), the processor 130 will execute step S60 to report the remaining capacity C8 of the current pen to the system circuit 140 .

When the confirmation result of the processor 130 in step S40 is that the preset condition is met, it means that the battery 110 in which the jump occurs is in a low temperature environment and there is actually still remaining power in the battery 110 . In order to enable the battery 110 to fully provide the stored power to the electronic device 100 is used. At this time, the processor 130 will not report the remaining capacity C8 of the current pen to the system circuit 140, and will execute a capacity correction program (step S50).

Figure 3 is a schematic flowchart of one embodiment of a capacity correction procedure. See Figure 1 and Figure 3. In one embodiment of the capacity correction program, the processor 130 uses the previous remaining capacity C7, for example 50%, as a correction capacity NC (step S501), and reports the correction capacity NC to the system circuit 140 (step S502). After reporting the correction capacity NC to the system circuit 140, the processor 130 starts counting a count value (step S503), and determines whether the count value reaches a correction condition (step S504). When it is determined that the count value reaches the correction condition, the processor 130 deducts a fixed capacity from the current correction capacity NC as a new correction capacity NC (step S505), and returns to step S502 to update the updated correction capacity NC. reported back to system circuit 140.

In some embodiments, the correction condition may depend on the maximum capacity of the battery 110 . In some implementations, when the maximum capacity of the battery 110 is greater than 8000 milliampere hours (mAh), the correction condition may be, for example but not limited to, a count value equal to an integer multiple of 40. When the maximum capacity of the battery 110 is less than or equal to 8000 milliampere hours (mAh), the correction condition may be, for example but not limited to, the count value being an integer multiple of 20. In addition, the fixed capacity may be, for example, but not limited to, 1%.

In some embodiments, after executing step S505 and returning to sequentially executing steps S502 and S503, the count value may not return to zero but continue to accumulate. However, the present invention is not limited to this. In other embodiments, after performing step S505, the count value will be reset to zero. Therefore, when subsequently returning to step S502 and step S503 in order, the count value starts to accumulate from zero.

Here, steps S501 to S505 will be described by taking the maximum capacity of the battery 110 being greater than 8000 milliamp hours as an example. After using 50% as the corrected capacity NC and reporting the corrected capacity NC to the system circuit 140, the processor 130 starts counting from zero. When the count value reaches 40, the processor 130 deducts 1% of the fixed capacity from the 50% correction capacity NC and returns 49% of the correction capacity NC (ie, the new correction capacity NC) to the system circuit 140 . Then, counting continues (assuming that the design value does not return to zero) until the count value reaches 80, the processor 130 then deducts 1% of the fixed capacity from the 49% correction capacity NC and returns 48% of the correction capacity NC (ie, the new correction capacity NC). capacity NC) to the system circuit 140. This process can be continued later, so I won’t go into details again.

Figure 4 is a schematic flowchart of one embodiment of a capacity correction procedure. See Figure 1 and Figure 4. In one embodiment of the capacity correction program, after obtaining the new corrected capacity NC in step S505, the processor 130 may first read the battery voltage from the battery meter 120 and determine whether the battery voltage VB is higher than the voltage threshold (step S506). To confirm whether the battery 110 still has remaining power. In some implementations, the voltage threshold may be 3.1 volts or other voltage values suitable for indicating when the battery 110 is out of power.

When it is determined that the battery voltage VB is not higher than the voltage threshold (ie, less than or equal to the voltage threshold), it means that the battery 110 has no power to provide for the electronic device 100 to use, so the processor 130 will report a cut-off capacity to the system circuit 140 ( Step S507).

In some embodiments, the processor 130 performs step S507 after the number of times that the battery voltage VB is continuously recorded to be not higher than the voltage threshold reaches a predetermined number of times. When the number of times that the battery voltage VB is not higher than the voltage threshold has not reached the predetermined number of times, the processor 130 may return to step S506 to re-confirm whether the battery voltage VB is not higher than the voltage threshold. In some implementations In this case, the cut-off capacity may be, for example, but not limited to, 0%. In addition, the predetermined number of times may be but is not limited to 10 times.

In some embodiments, after executing step S507 and reporting the cut-off capacity to the system circuit 140, the processor 130 may end (jump out) the capacity correction process. In addition, the system circuit 140 can perform a shutdown operation after receiving the cut-off capacity reported by the processor 130 to ensure that the electronic device 100 is shut down normally.

When it is determined in step S506 that the battery voltage VB is higher than the voltage threshold, the processor 130 then determines whether the new corrected capacity NC is lower than a capacity threshold (step S508). In some implementations, the capacity threshold may be, but is not limited to, 1% or 3%. When it is determined that the new corrected capacity NC is not lower than the capacity threshold, the processor 130 will execute step S502 to report the corrected capacity NC to the system circuit 140 . When it is determined that the new corrected capacity NC is lower than the capacity threshold, the processor 130 will change a preset capacity to report to the system circuit 140 so that the electronic device 100 can maintain operation without shutting down (step S509). In some implementations, the preset capacity may be 1%, 3%, or any other minimum capacity suitable for allowing the electronic device 100 to maintain operation without shutting down.

FIG. 5 is a schematic flowchart of part of an embodiment of the capacity correction process. See Figure 1 to Figure 5. In one embodiment of the capacity modification procedure, the processor 130 may further sequentially read the remaining capacities C1-CX from the storage unit 150 (step S510). In one embodiment of step S510, the processor 130 continues the reading sequence of step S10 to read the next remaining capacity, such as the remaining capacity C9. After reading a remaining capacity from the storage unit 150 in step S510, the processor 130 determines whether the remaining capacity of the current pen is equal to a cut-off capacity (step S511). In some implementations, the cutoff capacity may be, for example, but not limited to, 0%.

When the processor 130 determines in step S511 that the remaining capacity of the pen is not equal to the cut-off capacity, the processor 130 returns to step S510 to read the next remaining capacity. When the processor 130 determines in step S511 that the remaining capacity of the pen, for example, the remaining capacity C20 is equal to the cut-off capacity, the processor 130 will further confirm whether the remaining capacity of the previous pen, that is, the remaining capacity C19, is a virtual capacity (step S511 ). S512). In some embodiments, the virtual capacity is a capacity value generated by the processor 130 and recorded in the storage unit 150 when it detects that the battery meter 120 suddenly fails to output the remaining capacity (for example, because the user replaces the battery 110). In some implementations, the virtual capacity may be, for example, 100%, but the present invention is not limited thereto. The virtual capacity may be any capacity value used to prevent the electronic device 100 from instantaneously powering off.

When the processor 130 determines in step S512 that the previous remaining capacity C19 is not a virtual capacity, the processor 130 may return to step S510 to read the next remaining capacity. When the processor 130 determines that the previous remaining capacity C19 is a virtual capacity in step S512, it means that the battery 110 has experienced a jump and has been replaced with another battery. At this time, the processor 130 will read the battery meter 120. The currently output battery voltage VB is used to confirm whether the battery voltage VB is higher than the voltage threshold (step S513).

When the processor 130 determines in step S513 that the battery voltage VB is not higher than the voltage threshold, it means that the newly replaced battery 110 indeed has no power to provide the electronic device 100 (that is, the user has replaced a dead battery 110). Therefore, the processor 130 will report a cut-off capacity to the system circuit 140 (step S514).

When the processor 130 determines that the battery voltage VB is higher than the voltage threshold in step S513, it means that there is still remaining power in the newly replaced battery 110, so the processor 130 will report a preset capacity to the system circuit 140, so that the electronic The device 100 can remain operational without shutting down (step S515). In some implementations, the preset capacity may be 1%, 3%, or any other minimum capacity suitable for allowing the electronic device 100 to maintain operation without shutting down.

In some embodiments, after performing step S515, the processor 130 will return to step S513 to confirm again whether the current battery voltage VB is still higher than the voltage threshold. Until the processor 130 determines in step S513 that the battery voltage VB is not higher than the voltage threshold, it means that the remaining power of the newly replaced battery 110 has been exhausted. At this time, the processor 130 will execute step S514 and report the cut-off capacity to System circuit 140.

In some embodiments, the processor 130 performs step S514 after the number of times that the battery voltage VB is continuously recorded to be not higher than the voltage threshold reaches a predetermined number of times. When the number of times that the battery voltage VB is not higher than the voltage threshold has not reached the predetermined number of times, the processor 130 can return to step S513 to repeatedly confirm whether the battery voltage VB is not higher than the voltage threshold. In some implementations, the cutoff capacity may be, for example, but not limited to, 0%. In addition, the predetermined number of times may be but is not limited to 10 times.

In some embodiments, after performing step S514 and reporting the cut-off capacity to the system circuit 140, the processor 130 may end (jump out) the capacity correction process. In addition, the system circuit 140 can perform a shutdown operation after receiving the cut-off capacity reported by the processor 130 to ensure that the electronic device 100 is shut down normally.

In some embodiments, when entering the judgment of step S513, the processor 130 will no longer perform the related steps of reporting the correction capacity NC to the system circuit 140 (ie, steps S501 to S509).

In some embodiments, as shown in FIG. 1 , the electronic device 100 further includes a power connection port 160 , and the power connection port 160 is coupled to the battery 110 and the processor 130 . power port 160 is used to connect with the corresponding power connector to receive a power input AC through the power connector. Here, the power connector can be connected to or separated from the power connection port 160 by plugging or unplugging. In some implementations, the power input AC may be commercial power.

FIG. 6 is a schematic flowchart of an embodiment of part of the capacity correction procedure. See Figure 1 to Figure 6. In one embodiment of the capacity modification process, the processor 130 may further detect whether the power connection port 160 receives the power input AC (step S516). When it is detected that the power connection port 160 receives the power input AC, it means that the electronic device 100 can directly use the power input AC to operate without consuming power from the battery 110. Therefore, the processor 130 will stop counting (i.e., Interrupt the execution of step S503), and maintain the value of the currently reported correction capacity and the count value of step S503 (step S517). It should be noted that the battery 110 does not use the power input AC for charging (because the battery temperature TB is lower than the temperature threshold).

After stopping counting, the processor 130 can return to step S516 to confirm again whether the power connection port 160 still receives the power input AC. When the processor 130 detects that the power connection port 160 has not received the power input AC after stopping counting in step S517, the processor 130 will return to step S503 to continue counting from the previous count value.

In some embodiments, the electronic device 100 may have more than one battery 110 , and the number of battery meters 120 may correspond to the number of batteries 110 . The battery capacity reporting method of any embodiment of this case can also be applied to an electronic device 100 with more than one battery 110 (that is, an electronic device 100 with a multi-battery architecture). In a multi-battery architecture, the processor 130 of the electronic device 100 will separately execute the battery capacity reporting method of any embodiment of the present application for each battery 110 . FIG. 7 is a schematic flowchart of an embodiment of part of the capacity correction procedure. See Figure 1 to Figure 7.

In a multi-battery architecture, the electronic device 100 will be powered by the battery 110 with a higher current remaining capacity, while the other batteries 110 will not provide power. Therefore, in one embodiment of the battery capacity reporting method suitable for the electronic device 100 with a multi-battery architecture, the processor 130 further detects each battery 110 during the capacity correction procedure to separately confirm whether each battery is supplying power ( discharge) to the electronic device 100 (step S518). During the detection of each battery 110, if it is detected that the battery 110 does not provide power to the electronic device 100 (indicating that the current remaining capacity of the battery 110 is not the highest), the processor 130 will stop counting the battery 110 ( That is, step S503) executed for the battery 110 is interrupted, and the value of the currently reported corrected capacity NC and the count value of step S503 for the battery 110 are maintained (step S519). Until it is detected that the battery 110 resumes power supply to the electronic device 100 (indicating that the current remaining capacity of the battery 110 is the highest), the processor 130 resumes the execution of step S503 for the battery 110 to continue the previous count value. to start counting.

Hereinafter, the electronic device 100 having two batteries 110 (hereinafter referred to as the first battery and the second battery respectively) will be described as an example. Assume that the current corrected capacity NC of the first battery is 80% and the current corrected capacity NC of the second battery is 60%, the first battery will provide power first, and the second battery will not provide power. At this time, for the first battery, the processor 130 will count a first count value, and when the first count value meets the first correction condition (for example, the first count value is equal to an integer multiple of 40), the current value is 80%. After deducting the fixed capacity (for example, 1%) from the corrected capacity NC, a new corrected capacity NC is returned to the system circuit 140, that is, 79%. For the second battery, the processor 130 stops counting and keeps reporting the current corrected capacity NC, that is, 60%, to the system circuit 140 . Until the current corrected capacity NC of the first battery becomes, for example, 59%, which is lower than the current corrected capacity NC of the second battery, the second battery supplies power instead, and the first battery does not provide power. this When , for the first battery, the processor 130 will stop counting the first count value (the first count value before stopping is not cleared), and keep reporting the current corrected capacity NC, that is, 59%, to the system circuit 140 . For the second battery, the processor 130 will count a second count value, and when the second count value meets the second correction condition (for example, the second count value is equal to an integer multiple of 40), the current value is 60%. The corrected capacity NC deducts the fixed capacity (for example, 1%) and then returns the new corrected capacity NC, that is, 59% to the system circuit 140 . The subsequent process can be deduced in this way, so no details will be given.

In some embodiments, during the capacity correction procedure, the processor 130 may periodically (or continuously) read the battery temperature TB of the battery 110 . Moreover, as long as the processor 130 reads that the battery temperature TB is greater than the temperature threshold, the processor 130 will end the capacity correction process and restore the remaining capacity R1-RN generated by the battery meter 120 to report to the system circuit 140.

In some embodiments, the battery capacity reporting method of any embodiment of the present invention can be implemented by a readable recording media device. This readable recording media device stores a plurality of program codes, so that when the processor 130 of the electronic device 100 loads and executes the plurality of program codes, these program codes can cause the processor 130 of the electronic device 100 to execute any embodiment of the present invention. Battery capacity reporting method. In one embodiment, the readable recording media device can be the storage unit 150 inside the electronic device 100, and the storage unit 150 can be further used to store any data required for performing the battery capacity reporting method, such as fixed capacity, default Capacity etc. In another embodiment, the readable recording medium device can be a remote storage device and communicates with the processor 130 of the electronic device 100 through wired or wireless means. In another embodiment, the readable recording medium device may be a storage device external to the electronic device 100, and the program code of the storage device is connected and accessed through a reader or connector of the electronic device 100.

In summary, the electronic device 100 and the battery capacity reporting method of any embodiment, when the battery algorithm is insufficient for use at low temperatures and causes the display (or reporting) of the capacity of the battery 110 to jump abnormally, through The capacity correction program is executed to generate and report the corrected capacity NC to the system circuit 140 so that the power supply time of the electronic device 100 can be maintained normally and will not be shortened due to abnormal jumps. In addition, the electronic device 100 implemented according to the battery capacity reporting method of any embodiment can display the capacity of the battery 110 to the user according to the corrected capacity NC, so the user will not see the capacity of the battery 110 jumping randomly, and can further Improve user experience.

Although the technical content of the present invention has been disclosed above in the form of preferred embodiments, it is not intended to limit the present invention. Any slight changes and modifications made by anyone skilled in the art without departing from the spirit of the present invention should be covered by the present invention. Within the scope of the present invention, the protection scope of the present invention shall be subject to the scope of the appended patent application.

S10~S60: steps

Claims (16)

An electronic device includes: a battery for powering the electronic device; a battery meter for measuring the battery to generate a plurality of remaining capacities of the battery, a battery temperature and a battery voltage; and a processor for The remaining capacities are read sequentially. When it is read that the remaining capacity is equal to a cut-off capacity and the remaining capacity of the previous item is greater than a preset capacity, the processor confirms whether a certain requirement is met based on the battery temperature and the battery voltage. Preset conditions, wherein the preset condition is that the battery temperature is lower than a temperature threshold and the battery voltage is higher than a voltage threshold. When it is confirmed that the preset condition is met, the processor executes a capacity correction program; wherein, the capacity The correction procedure includes: using the remaining capacity of the previous transaction as a correction capacity; and reporting the correction capacity to a system circuit. The electronic device as described in claim 1, wherein when it is confirmed that the preset condition is not met, when it is read that the remaining capacity is not equal to the cut-off capacity, or when it is read that the remaining capacity is equal to the cut-off capacity and the previous When the remaining capacity is less than or equal to the preset capacity, the processor reports the remaining capacity of the pen to the system circuit. The electronic device as described in claim 1, wherein the capacity correction procedure further includes: after reporting the corrected capacity to the system circuit, starting to count a count value; and when the count value reaches a correction condition, The corrected capacity is deducted from a fixed capacity as the new corrected capacity, and the step of reporting the corrected capacity to the system circuit is returned to the execution. The electronic device as claimed in claim 3, wherein the capacity correction program further includes: after obtaining the new corrected capacity, determining whether the battery voltage is higher than the voltage threshold; when determining that the battery voltage is higher than the voltage threshold, Determine whether the new corrected capacity is lower than a capacity threshold; when it is judged that the new corrected capacity is not lower than the capacity threshold, perform the step of reporting the corrected capacity to the system circuit; when determining the new corrected capacity When it is lower than the capacity threshold, the preset capacity is used to report to the system circuit; and when it is determined that the battery voltage is not higher than the voltage threshold, the cut-off capacity is reported to the system circuit. The electronic device as described in claim 1, wherein the capacity correction program further includes: sequentially reading the remaining capacities; when it is read that the remaining capacity is the cut-off capacity and the previous remaining capacity is a virtual capacity. , determine whether the battery voltage is higher than the voltage threshold; when it is determined that the battery voltage is not higher than the voltage threshold, the cut-off capacity is reported to the system circuit; and when it is determined that the battery voltage is higher than the voltage threshold, the The preset capacity is reported to the system circuit, and the step of determining whether the battery voltage is higher than the voltage threshold is returned. The electronic device as claimed in claim 4 or 5, wherein the step of reporting the cut-off capacity to the system circuit is executed after the number of times that the battery voltage is continuously recorded to be not higher than the voltage threshold reaches a predetermined number of times. The electronic device as claimed in claim 3, further comprising: a power connection port coupled to the battery and used to receive a power input; wherein the processor is further used to detect whether the power connection port receives the power input; and wherein, the capacity correction procedure further includes: stopping counting when it is detected that the power connection port receives the power input; and when it is detected that the power connection port does not receive the power input after stopping counting, Start counting. The electronic device as described in claim 3, wherein the capacity correction procedure further includes: when detecting that the battery is not supplying power to the electronic device, stopping counting and maintaining the corrected capacity reported to the system circuit; and When it is detected that the battery resumes power supply to the electronic device, the counting starts. A battery capacity reporting method includes: sequentially reading a battery meter to measure a plurality of remaining capacities generated by a battery; when reading that the remaining capacity is equal to a cut-off capacity and the previous remaining capacity is greater than a preset capacity, Confirm whether a preset condition is met based on a battery temperature and a battery voltage of the battery, wherein the preset condition is that the battery temperature is lower than a temperature threshold and the battery voltage is higher than a voltage threshold; and when it is confirmed that the preset condition is met When conditions are met, execute a capacity correction procedure; Wherein, the capacity correction procedure includes: using the remaining capacity of the previous transaction as a correction capacity; and reporting the correction capacity to a system circuit. The battery capacity reporting method as described in claim 9 further includes: when it is confirmed that the preset condition is not met, when it is read that the remaining capacity is not equal to the cut-off capacity, or when it is read that the remaining capacity is equal to the cut-off capacity. And when the remaining capacity of the previous pen is less than or equal to the preset capacity, the remaining capacity of the current pen is reported to the system circuit. The battery capacity reporting method as described in claim 9, wherein the capacity correction procedure further includes: after reporting the corrected capacity to the system circuit, starting to count a count value; and when the count value reaches a correction condition , deduct a fixed capacity from the corrected capacity as the new corrected capacity, and return to the step of reporting the corrected capacity to the system circuit. The battery capacity reporting method as described in claim 11, wherein the capacity correction procedure further includes: determining whether the battery voltage is higher than the voltage threshold after obtaining the new corrected capacity; determining whether the battery voltage is higher than the voltage threshold. When determining whether the new corrected capacity is lower than a capacity threshold; when determining whether the new corrected capacity is not lower than the capacity threshold, perform the step of reporting the corrected capacity to the system circuit; when determining whether the new corrected capacity is not lower than the capacity threshold; When the corrected capacity is lower than the capacity threshold, the default capacity is reported to the system circuit; and When it is determined that the battery voltage is not higher than the voltage threshold, the cut-off capacity is reported to the system circuit. The battery capacity reporting method as described in claim 9, wherein the capacity correction procedure further includes: sequentially reading the remaining capacities; after reading that the remaining capacity is the cut-off capacity and the previous remaining capacity is a virtual capacity, determine whether the battery voltage is higher than the voltage threshold; when determining that the battery voltage is not higher than the voltage threshold, report the cut-off capacity to the system circuit; and when determining that the battery voltage is higher than the voltage threshold, The preset capacity is reported to the system circuit, and the step of determining whether the battery voltage is higher than the voltage threshold is returned. The battery capacity reporting method as described in claim 12 or 13, wherein the step of reporting the cut-off capacity to the system circuit is executed after the number of times that the battery voltage is continuously recorded to be not higher than the voltage threshold reaches a predetermined number of times. The battery capacity reporting method as described in claim 11, wherein the capacity correction procedure further includes: detecting whether a power connection port receives a power input; and stopping counting when detecting that the power connection port receives the power input. ; And after stopping counting and detecting that the power connection port does not receive the power input, start counting again. The battery capacity reporting method as described in claim 11, wherein the capacity correction procedure further includes: When it is detected that the battery is not supplying power, the counting is stopped and the correction capacity reported to the system circuit is maintained; and when it is detected that the battery is restoring power, counting is started.

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