CN116165554A - State of charge information processing method, device, storage medium and controller - Google Patents
State of charge information processing method, device, storage medium and controller Download PDFInfo
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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Abstract
The invention belongs to the technical field of new energy vehicles, and particularly relates to a charge state information processing method, a device, a storage medium and a controller; in the charging process, the display state of charge SOC (State Of Charge) of the battery or the battery pack system is dynamically corrected, so that the display information is as close as possible to the actual state of charge of the battery or the battery pack system, and the following performance index of the display system to the charging process is achieved; the charging process is subjected to piecewise linearization in the full charge test, and an appropriate correction slope is fitted through the SOC calibration process, so that the information synchronization of the real SOC and the display SOC can be realized in the whole charging process, especially in the last stage of the charging process.
Description
Technical Field
The invention belongs to the technical field of new energy vehicles, and particularly relates to a charge state information processing method, a device, a storage medium and a controller.
Background
The state of charge SOC (State Of Charge) is a key parameter of the battery system in various application scenes; typically, the SOC can be subdivided into a "true SOC" and a "display SOC" that the terminal portion can see.
In view of the diversity of various battery systems, particularly the variable characteristics and different application scenarios of lithium battery systems, the deviation between the 'real SOC' and the 'display SOC' often exists.
For the lithium iron phosphate battery, when the actual SOC and the display SOC have larger deviation, the display SOC stays still or jumps at the later stage of charging.
Based on the above technical problems, there is a need to properly process the state of charge information so that the deviation between the "true SOC" and the "displayed SOC" of the battery system is controlled within a reasonable or ideal range.
Disclosure of Invention
The embodiment of the invention discloses a charge state information processing method, which comprises a first charge state calibration step and a second display information correction step; the first charge state calibration step obtains full charge test data of the battery and/or the battery pack according to a charging strategy, a charging working condition and/or a charging flow; the full charge test data comprise target display charge states SOC (N, m) of each charging stage N (N) at different temperatures, and m and N are positive integers.
In addition, the second display information correction step synchronizes and/or associates the actual state of charge SOC (R) and the display state of charge SOC (D) of the battery and/or the battery pack, and corrects the state of charge deviation SOC (err) according to the full charge test data thereof, the state of charge deviation SOC (err) being the difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the charging stage N (N) where it is currently located.
The full charge test data includes a chargeable capacity Q (N) of each charging stage N (N) and a node bit state of charge SOC (N) at the end of each charging stage N (N).
Specifically, the charging stage N (N) in which the battery and/or the battery pack is currently located is determined according to the actual charging performance and/or the detection data.
The charging strategy comprises a charging stage N (N) selection mode, a jump voltage selection mode and/or a charging current for confirming the charging stage N (N) and/or the jump voltage; the charging flow is determined according to the charging strategy.
Specifically, the target display state of charge SOC (N, m) may be determined according to each charging stage N (N) and the corresponding cell actual voltage limit U (m); the full charge test data can be obtained after testing the same type of battery or battery pack as the battery and/or battery pack; the full charge test data comprises a correction rate K (N), wherein the correction rate K (N) corresponds to different charging phases N (N), and the data of each charging phase N (N) is dynamically corrected, namely the speed of the change of the corrected charging data is corrected.
Further, the method of the present invention may further comprise a third correction rate adjustment step; the third correction rate adjustment step selects a corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); wherein, the liquid crystal display device comprises a liquid crystal display device,
if the state of charge deviation SOC (err) is less than 0, the correction rate K (n) satisfies the following equation,
K（n）=（ABS（SOC（err）））/T，
wherein ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or a true state of charge SOC (R) from a state of charge deviation SOC (err) that is full of 100% of the charge, and T is a total charge remaining time from a full state of charge.
Further, the method of the present invention may further comprise a fourth end information optimizing step; the fourth end information optimizing step determines a basic correction rate K (a) according to a state of charge deviation SOC (err) of the current state of charge from full charge of 100% of the electric quantity and a total charge remaining time T until full charge, and makes K (a) =soc (err)/T;
wherein, if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) thereof satisfies the following formula,
k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each charging stage N (N), T (N) being the remaining charging time at that time; and such that K (n) is greater than or equal to K (A).
Specifically, if the display state of charge SOC (D) reaches a preset end state of charge threshold, then its display state of charge SOC (D) is maintained equal to the end state of charge threshold until the battery and/or battery pack is fully charged and corrected to 100% after full charge.
Wherein the end state of charge threshold is determined with a preset accuracy, the end state of charge threshold comprising one or more percentage values, which may be 99.5%.
Further, the second display information correction step, the third correction rate adjustment step, and/or the fourth end information optimization step thereof may refresh the display state of charge SOC (D) on the output device; the output device may be a display, a nixie tube and/or a voice device.
In particular, on the above-mentioned output device, the display state of charge SOC (D) is caused to follow and/or correspond to the true state of charge SOC (R).
In the first charge state calibration step, charge state information of a preset number S of charge stages N (N) meeting a preset charge progress requirement can be selected for dynamic correction, wherein the preset number S is an integer smaller than the total number of the charge stages N (N) and larger than 1.
Correspondingly, the embodiment of the invention also discloses an information processing device; the system comprises a first charge state calibration unit and a second display information correction unit; the first charge state calibration unit acquires full charge test data of the battery and/or the battery pack according to a charging strategy, a charging working condition and/or a charging flow.
The full charge test data comprise target display charge states SOC (N, m) of each charging stage N (N) at different temperatures, wherein m and N are positive integers.
In addition, the second display information correction unit synchronizes and/or associates the real state of charge (SOC) of the battery and/or the battery pack with the display state of charge (SOC) (D), and corrects the state of charge deviation (err) according to the full charge test data; the state of charge deviation SOC (err) is the difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the current charging phase N (N).
The full charge test data includes a chargeable capacity Q (N) of each charging stage N (N) and a node bit state of charge SOC (N) at the end of each charging stage N (N).
Specifically, the current charging stage N (N) of the battery and/or the battery pack may be determined according to the actual charging performance and/or the detection data; the charging strategy comprises a selection mode of a charging stage N (N), a selection mode of a jump voltage and/or a charging current for confirming the charging stage N (N) and/or the jump voltage; the charging flow is determined according to the charging strategy.
The target display state of charge SOC (N, m) can be confirmed according to each charging stage N (N) and the corresponding cell actual voltage limit U (m); the full charge test data can be obtained after testing the same type of battery or battery pack as the battery and/or battery pack; the full charge test data includes a correction rate K (n).
Further, the information processing apparatus of the present invention may further include a third correction rate adjustment unit; the third correction rate adjusting unit selects the corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); wherein, the liquid crystal display device comprises a liquid crystal display device,
if the state of charge deviation SOC (err) is less than 0, the correction rate K (n) satisfies the following equation,
K（n）=（ABS（SOC（err）））/T，
wherein ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or the actual state of charge SOC (R) is the state of charge deviation SOC (err) from 100% charge, and T is a total charge remaining time from a full state of charge.
Further, the information processing apparatus of the present invention may further include a fourth end information optimizing unit; the fourth terminal information optimizing unit determines a basic correction rate K (a) from a state of charge deviation SOC (err) of the current state of charge from full charge of 100% of the electric quantity and a total charge remaining time T until full charge such that K (a) =soc (err)/T.
Wherein, if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) satisfies the following formula,
k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each charging stage N (N), T (N) being the remaining charging time at that time; and such that K (n) is greater than or equal to K (A).
Wherein: if the display state of charge SOC (D) reaches a preset end state of charge threshold, the display state of charge SOC (D) is maintained equal to the end state of charge threshold until the battery and/or battery pack is fully charged and corrected to 100% after full charge.
Specifically, its end state of charge threshold is determined with a preset accuracy, which comprises one or more percentage values, optionally 99.5%.
Further, the second display information correction unit, the third correction rate adjustment unit, and/or the fourth end information optimization unit thereof may refresh the display state of charge SOC (D) on the output device; the output device may be a display, a nixie tube and/or a voice device, which may cause the display state of charge SOC (D) to follow and/or correspond to the real state of charge SOC (R).
The first charge state calibration unit may select a preset number S of charge phases N (N) of the charge system according to a preset charge progress requirement to dynamically correct the charge state information, where the preset number S is an integer smaller than the total number of charge phases N (N) and greater than 1.
Correspondingly, the embodiment of the invention also discloses a computer storage medium and a controller; the computer storage medium comprises a storage medium body for storing a computer program; any of the state of charge information processing methods described above when the computer program is executed by the microprocessor; similarly, the controller thereof includes any one of the information processing apparatuses and/or any one of the computer storage media as above.
In summary, the method and the product of the invention dynamically correct the display state of charge SOC (State Of Charge) of the battery or the battery pack system in the charging process, so that the display information is as close as possible to the actual state of charge of the battery or the battery pack system, thereby achieving the following index of the display system to the charging process; the charging process is subjected to piecewise linearization in the full charge test, and an appropriate correction slope is fitted through the SOC calibration process, so that the information synchronization of the real SOC and the display SOC can be realized in the whole charging process, especially in the last stage of the charging process.
It should be noted that, the terms "first", "second", and the like are used herein merely to describe each component in the technical solution, and do not constitute a limitation on the technical solution, and are not to be construed as indicating or implying importance of the corresponding component; elements with "first", "second" and the like mean that in the corresponding technical solution, the element includes at least one.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the technical effects, technical features and objects of the present invention will be further understood, and the present invention will be described in detail below with reference to the accompanying drawings, which form a necessary part of the specification, and together with the embodiments of the present invention serve to illustrate the technical solution of the present invention, but not to limit the present invention.
Like reference numerals in the drawings denote like parts, in particular:
FIG. 1 is a data structure of a full charge test according to an embodiment of the present invention.
Fig. 2 is a relationship between the actual voltage limit U (m) of the battery cell and the target display state of charge SOC (n, m) at different charging stages according to an embodiment of the present invention.
Fig. 3 shows the relationship between the basic correction rate K (a) and the correction rate K (N) at each stage in different charging stages N (N) according to the embodiment of the present invention.
FIG. 4 is a schematic diagram showing the flow of correction and end optimization of the state of charge SOC (D) according to an embodiment of the invention.
FIG. 5 is a flow chart of an embodiment of the method of the present invention.
FIG. 6 is a schematic diagram of the composition structure of an embodiment of the product of the present invention.
Fig. 7 is a schematic diagram of a layout structure of an embodiment of the product of the present invention.
FIG. 8 is a schematic diagram of a layout structure of a product according to a second embodiment of the present invention.
Fig. 9 is a schematic diagram of a layout structure of an embodiment of the product of the present invention.
Fig. 10 is a schematic diagram of a layout structure of an embodiment of the product of the present invention.
Wherein:
001-full charge test data;
010-charging phase N (N), N being a positive integer;
011-a preset number of charging phases N (N) at the end of the charging phase, n=7, 8, 9 or 10;
020-chargeable capacity Q (n), n being a positive integer;
030-node bit state of charge SOC (n), n being a positive integer;
031—target display state of charge SOC (n, m), m, n being a positive integer;
040-the actual voltage limit value U (m) of the battery cell, wherein m is a positive integer;
050—a modification rate K (N) corresponding to each charging phase N (N); n is a positive integer;
055-base correction rate K (A);
100-a first charge state calibration step;
200-a second display information correction step;
300-a third correction rate adjustment step;
400-fourth end information optimizing step;
404—end state of charge threshold;
900-vehicle;
901-a controller;
903-computer storage media;
906-information processing means;
909-battery pack;
916—a first state of charge calibration unit;
926-a second display information correction unit;
936-a third correction rate adjustment unit;
946-fourth end information optimizing unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. Of course, the following specific examples are set forth only to illustrate the technical solution of the present invention, and are not intended to limit the present invention. Furthermore, the parts expressed in the examples or drawings are merely illustrative of the relevant parts of the present invention, and not all of the present invention.
The method for processing the charge state information shown in fig. 5 comprises a first charge state calibration step 100 and a second display information correction step 200; the first state of charge calibration step 100 obtains full charge test data 001 of the battery and/or the battery pack 909 as shown in fig. 7 to 10 according to the charging strategy, the charging condition and/or the charging flow; the full charge test data 001 comprise target display charge states SOC (N, m) of each charging stage N (N) at different temperatures, and m and N are positive integers.
The second display information correction step 200 synchronizes and/or associates the real state of charge SOC (R) and the display state of charge SOC (D) of the battery and/or the battery pack 909, and corrects the state of charge deviation SOC (err) according to the full charge test data 001, wherein the state of charge deviation SOC (err) is the difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the current charging stage N (N).
Specifically, as shown in fig. 1, 2, and 3, the full charge test data 001 includes the chargeable capacity Q (N) of each charging stage N (N) and the node bit state of charge SOC (N) at the end of each charging stage N (N).
Wherein the current charging phase N (N) of the battery and/or battery pack 909 may be determined based on the actual charging performance and/or detection data; the charging strategy comprises a selection mode of a charging stage N (N), a selection mode of a jump voltage and/or a charging current for confirming the charging stage N (N) and/or the jump voltage; the charging flow is determined according to the charging strategy.
Furthermore, as shown in fig. 2, according to each charging phase N (N) and the corresponding cell actual voltage limit U (m), m=1, 2, 3, 4; the target display state of charge SOC (n, m) may be confirmed; wherein the full charge test data 001 is obtained from the same type of battery or battery pack as the battery and/or battery pack 909; the full charge test data 001 includes a correction rate K (n) as shown in fig. 3.
Further, as shown in fig. 4 and 5, the method according to the embodiment of the present invention further includes a third correction rate adjustment step 300 shown in fig. 5; the third correction rate adjustment step 300 selects a corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); wherein, the liquid crystal display device comprises a liquid crystal display device,
if the state of charge deviation SOC (err) is less than 0, the correction rate K (n) satisfies the following equation,
K（n）=（ABS（SOC（err）））/T，
wherein ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or a true state of charge SOC (R) from a state of charge deviation SOC (err) that is full of 100% of the charge, and T is a total charge remaining time from a full state of charge.
On the other hand, in consideration of the nonlinear characteristics of the charging progress change, the embodiment of the present invention further includes a fourth end information optimization step 400 as shown in fig. 5; the fourth end information optimizing step 400 determines a basic correction rate K (a) according to a state of charge deviation SOC (err) of the current state of charge from full charge of 100% of the electric quantity and a total charge remaining time T until full charge, such that K (a) =soc (err)/T;
if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) satisfies the following equation,
k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each charging stage N (N), T (N) being the remaining charging time at that time; and such that K (n) is greater than or equal to K (A).
If the display state of charge SOC (D) reaches the preset end state of charge threshold 404, as shown in fig. 4, the display state of charge SOC (D) is maintained equal to the end state of charge threshold 404 until the battery and/or the battery pack 909 is fully charged and the display state of charge SOC (D) is corrected to 100% after the full charge; the end state of charge threshold 404 is determined with a preset accuracy, and the end state of charge threshold 404 may be one or more percentage values, which may be 99.5%.
Further, the second display information modification step 200, the third modification rate adjustment step 300 and/or the fourth end information optimization step 400 thereof may refresh the display state of charge SOC (D) on the output device; the output device may be a display, a nixie tube and/or a voice device, which may cause the display state of charge SOC (D) to follow and/or correspond to the real state of charge SOC (R).
The first state of charge calibration step 100 may select the state of charge information of the charging stage N (N) of a preset number S meeting the preset charging schedule requirement for dynamic correction, where the preset number s=10.
Accordingly, the information processing apparatus 906 as shown in fig. 6 includes a first state of charge calibration unit 916, a second display information correction unit 926; the first state of charge calibration unit 916 obtains full charge test data 001 for the battery and/or battery pack 909 according to the charging strategy, charging conditions and/or charging process.
Specifically, according to the charging strategies of different charging stages, including battery temperature, charging jump voltage and charging current among different stages, the actual charging process comprises the battery voltage, actual SOC and deviation of display SOC during charging, the actual chargeable capacity and charging residual time of each stage, and the correction rate of the display SOC is dynamically adjusted through the SOC deviation and the residual charging time of each stage, and the correction rate is limited to a certain extent, so that the following performance of the display SOC and the actual SOC is ensured, and the display SOC of each stage is smoothly changed, and finally is changed to 100% during full charging; finally, the problem that the display SOC stays still and jumps for a long time is solved, and further the terminal user experience is improved.
The full charge test data 001 comprises target display charge states SOC (N, m) of each charging stage N (N) at different temperatures, wherein m and N are positive integers; the second display information correction unit 926 synchronizes and/or associates the actual state of charge SOC (R) and the display state of charge SOC (D) of the battery and/or the battery pack 909, and corrects the state of charge deviation SOC (err) according to the full charge test data 001, which is the difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the charging stage N (N) where it is currently located.
Specifically, the full charge test data 001 may include a chargeable capacity Q (N) of 10 charging phases N (N) and a node bit state of charge SOC (N) at the end of each charging phase N (N); determining a charging stage N (N) in which the battery and/or battery pack 909 is currently located based on the actual charging performance and/or the detection data; the charging strategy involves the selection of the charging phase N (N), the selection of the jump voltage and/or the charging current for confirming the charging phase N (N) and/or the jump voltage; the charging flow may be determined according to a charging policy.
Wherein: according to each charging stage N (N) and the corresponding practical voltage limit value U (m) of the battery cell, m=1, 2, 3 and 4; the target display state of charge SOC (n, m) as shown in fig. 2 may be confirmed; the full charge test data 001 is obtained from the same type of battery or battery pack as the battery and/or battery pack 909; the full charge test data 001 includes a correction rate K (n) as shown in fig. 3.
Based on the above assumption, if a certain battery system has 10 charging phases, the implementation steps can be performed as follows:
firstly, a test flow can be formulated according to a vehicle charging strategy, such as a charging stage, a jump voltage and a charging current; full charge tests are carried out on the sample battery at different temperatures, so that the chargeable capacity Q (n) of different charging stages at different temperatures and the SOC at the end of each charging stage are determined;
secondly, under the premise of ensuring that the real SOC of the initial state of the battery corresponds to the display SOC, the full charge test can be carried out on the sample battery system. And determining to enter a charging stage of the dynamic correction display SOC according to the actual charging performance, and confirming the target display SOC to be corrected based on different charging stages and the maximum cell actual voltage value.
Specifically, the correction rate can be dynamically adjusted according to the SOC deviation and the estimated charge remaining time; the SOC deviation can be determined according to the current display SOC and the target display SOC; so that the SOC deviation is equal to = target display SOC minus current display SOC; that is to say: the phase charging remaining time may be determined according to the phase remaining chargeable amount and the phase charging current; and the stage remaining chargeable amount may be determined by the stage chargeable amount and the stage charged amount; further, the phase charged amount may be determined by the phase charging current and the phase charged time.
The calculation of the correction rate can be divided into two cases:
on the one hand: when the SOC deviation is greater than or equal to 0, the calculation and the confirmation are mainly carried out from three layers, namely, the basic correction rate K (A) is confirmed by the difference value SOC of the current SOC distance fully charged by 100% of electric quantity and the total charge remaining time until fully charged; secondly, calculating the correction rate K (n) of each stage according to the SOC deviation of each charging stage and the stage charging residual time; and thirdly, considering that the correction rate cannot be too small or too large, if the correction rate is too small, the display SOC is too slow to increase, the display SOC reflected on the instrument may be motionless for a long time, the correction effect cannot be achieved, and if the correction rate is too large, the display SOC is too fast to increase, and the battery is not durable for the terminal user.
Specifically, to ensure that the SOC deviation at full charge can be corrected and that the user experience is improved as high as possible, as much correction as possible is required before the last charging phase is reached; at this time, K (n) should be made not smaller than K (A).
On the other hand: when the SOC deviation is smaller than 0, the correction rate can be confirmed by the difference SOC of the current SOC from the full charge of 100% of the electric quantity and the total charge remaining time until full charge.
Specifically, in the charging process, when the set charging stage is reached and the deviation occurs between the display SOC and the real SOC, the display SOC is corrected in real time according to the correction rate so as to be closer to the real SOC, smooth change of the display SOC before full charge is ensured, and finally the full charge time reaches 100%.
Wherein the apparatus further comprises a third correction rate adjustment unit 936 as shown in fig. 6; the third correction rate adjusting unit 936 selects a corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); at this time, if the state of charge deviation SOC (err) is smaller than 0, the correction rate K (n) satisfies the following equation,
K（n）=（ABS（SOC（err）））/T，
wherein ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or a true state of charge SOC (R) from a state of charge deviation SOC (err) that is full of 100% of the charge, and T is a total charge remaining time from a full state of charge.
On the other hand, in order to improve the characteristics of the charging terminal, the apparatus may be further provided with a fourth terminal information optimizing unit 946; the fourth end information optimizing unit 946 may determine the basic correction rate K (a) according to the state of charge deviation SOC (err) of the current state of charge from the full charge of 100% of the electric quantity and the total charge remaining time T until the full charge such that K (a) =soc (err)/T; if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) satisfies the following equation,
k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each charging stage N (N), T (N) being the remaining charging time at that time; and causing:
k (n) is greater than or equal to K (A).
If the display state of charge SOC (D) reaches the preset end state of charge threshold 404, the display state of charge SOC (D) is maintained equal to the end state of charge threshold 404 until the battery and/or battery pack 909 is fully charged and the display state of charge SOC (D) is corrected to 100% after the full charge, as shown in fig. 4.
Specifically, the end state of charge threshold 404 may be determined by a preset accuracy, and the end state of charge threshold 404 may be one or more percentage values, which may be 99.5%.
Further, its second display information correction unit 926, third correction rate adjustment unit 936, and/or fourth end information optimization unit 946 may refresh the display state of charge SOC (D) on the output device; the output device may be a display, a nixie tube and/or a voice device, which may cause the display state of charge SOC (D) to follow and/or correspond to the real state of charge SOC (R).
The first soc calibration unit 916 may select the soc information of the charging phases N (N) of the preset number S according to the preset charging schedule requirement for dynamic correction, in this embodiment, s=10.
In addition, corresponding computer storage media 903 and controller 901 are also disclosed as in fig. 7-10; wherein the computer storage medium 903 comprises a storage medium body for storing a computer program; the computer program, when executed by the microprocessor, can implement any of the state of charge information processing methods described above; similarly, the controller 901 thereof includes any one of the information processing devices 906 and/or any one of the computer storage media 903 as described above.
The invention can correct the deviation of the real SOC and the display SOC of the battery system, and particularly, in the later stage of charging, the display SOC can be changed smoothly in the whole charging process by real-time dynamic adjustment until the display SOC is fully charged to 100%; the problem that the SOC is displayed to stay still or jump for a long time in the charging process is solved, so that more comfortable charging experience is brought to the terminal user.
It should be noted that the foregoing examples are merely for clearly illustrating the technical solution of the present invention, and those skilled in the art will understand that the embodiments of the present invention are not limited to the foregoing, and that obvious changes, substitutions or alterations can be made based on the foregoing without departing from the scope covered by the technical solution of the present invention; other embodiments will fall within the scope of the invention without departing from the inventive concept.
Claims (14)
1. The charge state information processing method is characterized by comprising a first charge state calibration step (100) and a second display information correction step (200); wherein: the first charge state calibration step (100) obtains full charge test data (001) of the battery and/or the battery pack (909) according to a charging strategy, a charging working condition and/or a charging flow; the full charge test data (001) comprises target display charge states SOC (N, m) (031) of each charging stage N (N) (010) at different temperatures, wherein m and N are positive integers; the second display information correction step (200) synchronizes and/or associates the actual state of charge SOC (R) and the display state of charge SOC (D) of the battery and/or the battery pack (909), and corrects a state of charge deviation SOC (err) according to the full charge test data (001), which is a difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the charging stage N (N) (010) where the present is located.
2. The state of charge information processing method according to claim 1, wherein: the full charge test data (001) includes a chargeable capacity Q (N) (020) of each of the charging phases N (N) (010) and a node bit state of charge SOC (N) (030) at the end of each of the charging phases N (N) (010); determining the charging phase N (N) in which the battery and/or the battery pack (909) is currently located, based on actual charging performance and/or detection data; the charging strategy comprises a selection mode of the charging stage N (N) (010), a selection mode of a jump voltage and/or a charging current for confirming the charging stage N (N) (010) and/or the jump voltage; and the charging flow is determined according to the charging strategy.
3. The state of charge information processing method according to claim 1 or 2, wherein: confirming the target display state of charge SOC (N, m) based on each of the charging phases N (N) (010) and a corresponding cell actual voltage limit U (m) (040) (031); the full charge test data (001) is obtained from a battery or battery pack of the same type as the battery and/or battery pack (909) after testing; the full charge test data (001) includes a correction rate K (n).
4. A state of charge information processing method according to claim 3, further comprising a third correction rate adjustment step (300); the third correction rate adjustment step (300) selects the corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); wherein, if the state of charge deviation SOC (err) is less than 0, the correction rate K (n) satisfies: k (n) = (ABS (SOC (err)))/T, where ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or the actual state of charge SOC (R) is the state of charge deviation SOC (err) from the 100% charge, and T is the total charge remaining time from a full state of charge.
5. A state of charge information processing method according to claim 3, further comprising a fourth end information optimizing step (400); the fourth end information optimizing step (400) determines a basic correction rate K (a) according to the state of charge deviation SOC (err) of the current state of charge from full charge of 100% of the electric quantity and the total charge remaining time T until full charge, such that K (a) =soc (err)/T; if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) satisfies:
k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each of the charging phases N (N), T (N) being the remaining charging time at that time; and such that K (n) is greater than or equal to K (A).
6. The state of charge information processing method according to claim 4 or 5, wherein: if the display state of charge (D) reaches a preset end state of charge threshold (404), maintaining the display state of charge (D) equal to the end state of charge threshold (404) until the battery and/or the battery pack (909) is full and correcting the display state of charge (D) to 100% after full charge; the end state of charge threshold (404) is determined with a preset accuracy, the end state of charge threshold (404) comprising one or more percentage values, the percentage values comprising 99.5%; the second display information correction step (200), the third correction rate adjustment step (300) and/or the fourth end information optimization step (400) refresh the display state of charge SOC (D) on an output device; the output device comprises a display, a nixie tube and/or a voice means such that the display state of charge SOC (D) follows and/or corresponds to the real state of charge SOC (R); the first state of charge calibration step (100) selects a preset number S of state of charge information of the charging stages N (N) (010) meeting a preset charging progress requirement for dynamic correction, where the preset number S is an integer smaller than the total number of the charging stages N (N) (010) and greater than 1.
7. An information processing apparatus (906) includes a first state of charge calibration unit (916), a second display information correction unit (926); wherein: the first charge state calibration unit (916) obtains full charge test data (001) of the battery and/or the battery pack (909) according to a charging strategy, a charging working condition and/or a charging process; the full charge test data (001) comprises target display charge states SOC (N, m) (031) of each charging stage N (N) (010) at different temperatures, wherein m and N are positive integers; the second display information correction unit (926) synchronizes and/or associates a true state of charge SOC (R) and a display state of charge SOC (D) of the battery and/or the battery pack (909), and corrects a state of charge deviation SOC (err) according to the full charge test data (001), which is a difference between the target display state of charge SOC (N, m) and the display state of charge SOC (D) in the charging stage N (N) (010) where it is currently located.
8. The information processing apparatus (906) according to claim 7, wherein: the full charge test data (001) includes a chargeable capacity Q (N) (020) of each of the charging phases N (N) (010) and a node bit state of charge SOC (N) (030) at the end of each of the charging phases N (N) (010); determining the charging phase N (N) in which the battery and/or the battery pack (909) is currently located, based on actual charging performance and/or detection data; the charging strategy comprises a selection mode of the charging stage N (N) (010), a selection mode of a jump voltage and/or a charging current for confirming the charging stage N (N) (010) and/or the jump voltage; and the charging flow is determined according to the charging strategy.
9. The information processing apparatus (906) according to claim 7 or 8, wherein: confirming the target display state of charge SOC (N, m) based on each of the charging phases N (N) (010) and a corresponding cell actual voltage limit U (m) (040) (031); the full charge test data (001) is obtained from a battery or battery pack of the same type as the battery and/or battery pack (909) after testing; the full charge test data (001) includes a correction rate K (n).
10. The information processing apparatus (906) according to claim 9, further comprising a third correction rate adjustment unit (936); the third correction rate adjusting unit (936) selects the corresponding correction rate K (n) according to the value range of the state of charge deviation SOC (err); if the state of charge deviation SOC (err) is less than 0, the correction rate K (n) satisfies: k (n) = (ABS (SOC (err)))/T, where ABS () is an absolute value operation, SOC (err) is a current state of charge SOC or the actual state of charge SOC (R) is the state of charge deviation SOC (err) from the 100% charge, and T is the total charge remaining time from a full state of charge.
11. The information processing apparatus (906) according to claim 9, further comprising a fourth end information optimizing unit (946); the fourth end information optimizing unit (946) determines a basic correction rate K (a) from the state of charge deviation SOC (err) of the current state of charge from full charge of 100% of the electric quantity and a total charge remaining time T until full charge such that: k (a) =soc (err)/T; if the state of charge deviation SOC (err) is greater than or equal to 0, the correction rate K (n) satisfies: k (N) =soc (err, N)/T (N), SOC (err, N) being the state of charge deviation SOC (err) of each of the charging phases N (N), T (N) being the remaining charging time at that time; and such that K (n) is greater than or equal to K (A).
12. The information processing apparatus (906) according to claim 10 or 11, wherein: if the display state of charge (D) reaches a preset end state of charge threshold (404), maintaining the display state of charge (D) equal to the end state of charge threshold (404) until the battery and/or the battery pack (909) is full and correcting the display state of charge (D) to 100% after full charge; the end state of charge threshold (404) is determined with a preset accuracy, the end state of charge threshold (404) comprising one or more percentage values, the percentage values comprising 99.5%; the second display information correction unit (926), the third correction rate adjustment unit (936), and/or the fourth end information optimization unit (946) refresh the display state of charge SOC (D) on an output device; the output device comprises a display, a nixie tube and/or a voice means such that the display state of charge SOC (D) follows and/or corresponds to the real state of charge SOC (R); the first state of charge calibration unit (916) selects a preset number S of state of charge information of the charging stages N (N) (010) meeting a preset charging progress requirement for dynamic correction, where the preset number S is an integer smaller than the total number of the charging stages N (N) (010) and greater than 1.
13. A computer storage medium (903) comprising a storage medium body for storing a computer program; the computer program, when executed by a microprocessor, implements the state of charge information processing method according to any one of claims 1 to 6.
14. A controller (901) comprising an information processing device (906) as claimed in any one of claims 7 to 12 and/or a computer storage medium (903) as claimed in any one of claim 13.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116699430A (en) * | 2023-08-04 | 2023-09-05 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
| CN117192423A (en) * | 2023-11-07 | 2023-12-08 | 深圳市美尔泰电子有限公司 | Mobile power supply residual electric quantity accurate detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116699430A (en) * | 2023-08-04 | 2023-09-05 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
| CN116699430B (en) * | 2023-08-04 | 2023-11-21 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
| CN117192423A (en) * | 2023-11-07 | 2023-12-08 | 深圳市美尔泰电子有限公司 | Mobile power supply residual electric quantity accurate detection method |
| CN117192423B (en) * | 2023-11-07 | 2024-01-26 | 深圳市美尔泰电子有限公司 | Mobile power supply residual electric quantity accurate detection method |
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