CN113933722A - Correction method, device, equipment and storage medium for battery electric quantity SOC misjudgment - Google Patents
Correction method, device, equipment and storage medium for battery electric quantity SOC misjudgment Download PDFInfo
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- CN113933722A CN113933722A CN202111456686.1A CN202111456686A CN113933722A CN 113933722 A CN113933722 A CN 113933722A CN 202111456686 A CN202111456686 A CN 202111456686A CN 113933722 A CN113933722 A CN 113933722A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- 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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- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
Abstract
The invention relates to the technical field of data processing, and discloses a correction method, a device, equipment and a storage medium for battery electric quantity SOC misjudgment, wherein the method comprises the following steps: calculating the current electric quantity SOC of the battery according to the current voltage and current of the battery and the current state of the vehicle; determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, obtaining corresponding real-time voltage and real-time current according to the current mode, calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC; because the current mode of the battery is determined by the current electric quantity SOC and the preset electric quantity SOC threshold value, the target correction electric quantity SOC is calculated according to the real-time voltage and the real-time current, and the current electric quantity SOC is corrected based on the target correction electric quantity SOC, compared with the prior art that the electric quantity SOC measured by a sensor is directly judged to act, the method can effectively improve the accuracy of judging the action and dynamically correct the electric quantity SOC.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a method, a device, equipment and a storage medium for correcting misjudgment of battery electric quantity SOC.
Background
With the continuous development of vehicle technology, the performance of a vehicle is also gradually improved, and many performance factors affecting the vehicle are provided, for example, the remaining capacity SOC of a battery is realized by a battery sensor through an open-circuit voltage method and an ampere-hour integration method, but the ampere-hour integration method deviates along with the passage of time, and the open-circuit voltage method needs to be left for a long time for correction, so that the SOC accuracy is low or misjudged, function actuation is affected when the SOC accuracy is low, battery feeding is caused when the SOC is misjudged, and the vehicle cannot be started even in severe cases. The criterion for determining the actuation is the electric quantity SOC, which is monitored by the battery sensor, but when the electric quantity SOC is wrong, the accuracy of determining the actuation is low.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a correction method, a correction device and a correction device for battery electric quantity SOC misjudgment and a storage medium, and aims to solve the technical problems that the judgment and the action are low in accuracy and the electric quantity SOC cannot be dynamically corrected in the prior art.
In order to achieve the above object, the present invention provides a method for correcting misjudgment of battery power SOC, which comprises the following steps:
acquiring the current voltage and current of a battery and the current state of a vehicle;
calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state;
determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode;
and calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC.
Optionally, the current mode includes a discharging mode, the real-time voltage includes a first real-time voltage, the real-time current includes a first real-time current, and the target correction electric quantity SOC includes a first correction electric quantity SOC;
the determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining a corresponding real-time voltage and a real-time current according to the current mode includes:
when the current electric quantity SOC is larger than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a discharging mode;
discharging the battery according to the discharge mode to obtain a first real-time voltage and a first real-time current;
correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes:
and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current, and correcting the current electric quantity SOC through the first correction electric quantity SOC.
Optionally, before calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current and correcting the current electric quantity SOC by the first correction electric quantity SOC, the method further includes:
acquiring the current temperature of a target battery;
discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve;
and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC according to the first correction electric quantity SOC.
Optionally, the discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve includes:
discharging the target battery according to the current temperature within a preset time period to obtain one or more current discharge curves;
obtaining a temperature current parameter set according to the one or more current discharge curves;
determining a discharge current coefficient through the temperature voltage parameter set;
and generating a target discharge curve according to the discharge current coefficient and the current discharge curve.
Optionally, the step of calculating a first corrected electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC by the first corrected electric quantity SOC includes:
calculating the first real-time current according to the target discharge curve to obtain a current discharge voltage threshold value;
when the first real-time voltage is smaller than the current discharge voltage threshold value, calculating a first correction electric quantity SOC according to the target voltage and the target current;
and correcting the front electric quantity SOC through the first correction electric quantity SOC.
Optionally, the current mode includes a charging mode, the real-time voltage includes a second real-time voltage, the real-time current includes a second real-time current, and the target correction electric quantity SOC includes a second correction electric quantity SOC;
the determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining a corresponding real-time voltage and a real-time current according to the current mode includes:
when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a charging mode;
charging the battery according to the charging mode to obtain a second real-time voltage and a second real-time current;
correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes:
and calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
Optionally, the calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC includes:
charging the target battery according to the current temperature in a first time period to obtain a target charging curve;
calculating the second real-time voltage according to the target charging curve to obtain a current charging current threshold value;
and when the second real-time current is smaller than the current charging current threshold value, calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
Optionally, the charging the target battery according to the current temperature in the first time period to obtain the target charging curve includes:
charging the target battery according to the current temperature in a first time period to obtain one or more current charging curves;
obtaining a temperature and current parameter set according to the one or more current charging curves;
determining a charging current coefficient through a temperature current parameter set;
and generating a target charging curve according to the charging current coefficient and the current charging curve.
Optionally, before determining the current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold, the method further includes:
acquiring the parking electric quantity SOC variation and the starting electric quantity SOC of the vehicle;
obtaining a lower limit electric quantity SOC according to the parking electric quantity SOC variation and the starting electric quantity SOC;
when the lower limit electric quantity SOC is smaller than a target electric quantity SOC threshold value, judging whether the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC;
and when the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC, determining a preset electric quantity SOC threshold according to the lower limit electric quantity SOC, the preset degradation electric quantity SOC and the preset depth of discharge electric quantity SOC.
In order to achieve the above object, the present invention further provides a device for correcting misjudgment of battery charge SOC, including:
the acquisition module is used for acquiring the current voltage and current of the battery and the current state of the vehicle;
the calculation module is used for calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state;
the determining module is used for determining the current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode;
and the correction module is used for calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current and correcting the current electric quantity SOC through the target correction electric quantity SOC.
Further, in order to achieve the above object, the present invention also provides a device for correcting misjudgment of battery charge SOC, including: the device comprises a memory, a processor and a correction program for misjudging the battery electric quantity SOC, wherein the correction program is stored on the memory and can run on the processor, and is configured to realize the correction method for misjudging the battery electric quantity SOC.
In addition, in order to achieve the above object, the present invention further provides a storage medium, on which a correction program for misjudging the battery charge SOC is stored, and when the correction program for misjudging the battery charge SOC is executed by a processor, the method for correcting the misjudging the battery charge SOC is implemented as described above.
The invention provides a correction method for misjudgment of battery electric quantity SOC, which comprises the steps of obtaining the current voltage and current of a battery and the current state of a vehicle; calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state; determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode; calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC; because the current mode of the battery is determined by the current electric quantity SOC and the preset electric quantity SOC threshold value, the target correction electric quantity SOC is calculated according to the real-time voltage and the real-time current, and the current electric quantity SOC is corrected based on the target correction electric quantity SOC, compared with the prior art that the electric quantity SOC measured by a sensor is directly judged to act, the method can effectively improve the accuracy of judging the action and dynamically correct the electric quantity SOC.
Drawings
Fig. 1 is a schematic structural diagram of a device for correcting misjudgment of battery charge SOC in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a first embodiment of a method for correcting a misjudgment of a battery state of charge (SOC) according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a method for correcting an SOC error according to the present invention;
FIG. 4 is a schematic diagram of a target discharge curve according to an embodiment of the correction method for battery SOC misjudgment of the present invention;
FIG. 5 is a flowchart illustrating a third embodiment of a method for correcting an SOC error according to the present invention;
FIG. 6 is a schematic diagram of a target charging curve according to an embodiment of the correction method for battery SOC misjudgment of the present invention;
fig. 7 is a functional block diagram of a correction apparatus for battery SOC misjudgment according to a first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a device for correcting misjudgment of battery level SOC in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the apparatus for correcting the misjudgment of the battery charge SOC may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the correction device for the misjudgment of the battery charge level SOC, and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a correction program for misjudgment of the battery charge amount SOC.
In the device for correcting the misjudgment of the battery power SOC as shown in fig. 1, the network interface 1004 is mainly used for data communication with the network integration platform workstation; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the device for correcting the misjudgment of the battery charge SOC may be disposed in the device for correcting the misjudgment of the battery charge SOC, and the device for correcting the misjudgment of the battery charge SOC calls a correction program for misjudgment of the battery charge SOC stored in the memory 1005 through the processor 1001 and executes the method for correcting the misjudgment of the battery charge SOC according to the embodiment of the present invention.
Based on the hardware structure, the embodiment of the correction method for the misjudgment of the battery electric quantity SOC is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a first embodiment of a method for correcting a misjudgment of a battery state of charge (SOC) according to the present invention.
In a first embodiment, the method for correcting the misjudgment of the battery charge SOC comprises the following steps:
in step S10, the present voltage and the present current of the battery and the present state of the vehicle are acquired.
It should be noted that the main execution unit of the present embodiment is a correction device for misjudging the battery charge SOC, and may also be other devices that can implement the same or similar functions, such as a vehicle controller.
It should be understood that the present voltage refers to the voltage supplied by the battery to the vehicle, which may be measured by a voltage sensor, and may be other voltage measuring devices, and the present current refers to the current supplied by the battery to the vehicle, which may be measured by a current sensor, and may be other current measuring devices, which are varied in real time, and the present state refers to the state in which the vehicle is running, which includes acceleration, deceleration, and stationary states.
And step S20, calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state.
It can be understood that the current charge SOC refers to the remaining charge of the current vehicle battery, the charge SOC is usually expressed in percentage, and the current SOC refers to the ratio of the remaining dischargeable charge of the battery after the battery is used for a period of time or left unused for a long time to the charge of the battery in the fully charged state.
And step S30, determining the current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode.
It should be understood that, the preset electric quantity SOC threshold refers to a reference value for setting the electric quantity of the battery, and when the current electric quantity SOC is greater than or less than the preset electric quantity SOC threshold, the current electric quantity SOC needs to be dynamically corrected, that is, after the current electric quantity SOC is obtained, the current electric quantity SOC is compared with the preset electric quantity SOC threshold to determine the current mode of the battery.
Further, step S30 includes: when the current electric quantity SOC is larger than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a discharging mode; discharging the battery according to the discharge mode to obtain a first real-time voltage and a first real-time current; correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes: and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current, and correcting the current electric quantity SOC through the first correction electric quantity SOC.
It can be understood that when the current electric quantity SOC is greater than the preset electric quantity SOC threshold, it indicates that the current mode of the battery is the discharging mode, and at this time, the battery needs to be discharged to obtain a first real-time voltage and a first real-time current, where the first real-time voltage is a voltage after the battery is discharged, and the first real-time current is a current after the battery is discharged.
Further, step S30 includes: when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a charging mode; charging the battery according to the charging mode to obtain a second real-time voltage and a second real-time current; correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes: and calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
It should be understood that, when the current electric quantity SOC is smaller than the preset electric quantity SOC threshold, it indicates that the current mode of the battery is the charging mode, and at this time, the battery needs to be charged to obtain a second real-time voltage and a second real-time current, where the second real-time voltage is a voltage after the battery is charged, and the second real-time current is a current after the battery is discharged.
Further, before step S30, the method further includes: acquiring the parking electric quantity SOC variation and the starting electric quantity SOC of the vehicle; obtaining a lower limit electric quantity SOC according to the parking electric quantity SOC variation and the starting electric quantity SOC; when the lower limit electric quantity SOC is smaller than a target electric quantity SOC threshold value, judging whether the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC; and when the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC, determining a preset electric quantity SOC threshold according to the lower limit electric quantity SOC, the preset degradation electric quantity SOC and the preset depth of discharge electric quantity SOC.
It can be understood that the parking charge SOC variation refers to the charge in which the charge SOC varies due to the slight power consumption of the vehicle when the vehicle is turned off, the starting charge SOC refers to the lowest charge SOC of the battery for starting the vehicle, the preset depth of discharge charge SOC refers to the depth of discharge of the battery required for calculating the fuel consumption simulation, the preset depth of discharge charge SOC is the maximum value of the charge SOC of the battery, the preset degraded charge SOC refers to the lowest charge SOC of the inherent degradation of the battery, the lower limit charge SOC of the ISS and the regeneration control is calculated by the parking charge SOC variation and the starting charge SOC, that is, the lower limit charge SOC is the parking charge SOC variation plus the starting charge SOC, the target current threshold SOC is 100%, and when the lower limit charge SOC is smaller than the target current threshold SOC and the lower limit charge SOC is larger than the preset depth of discharge charge SOC, the lower limit charge SOC, the preset degraded charge SOC and the preset depth of discharge charge SOC obtain the current threshold range, and selecting a preset electric quantity SOC threshold value from the current SOC threshold value range, wherein the current SOC threshold value range is (lower limit electric quantity SOC & preset deterioration electric quantity SOC) is less than or equal to the preset electric quantity SOC threshold value and less than or equal to the preset discharging depth electric quantity SOC.
And step S40, calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC according to the target correction electric quantity SOC.
It can be understood that, the target corrected electric quantity SOC refers to an electric quantity SOC for correcting the current electric quantity SOC, the target corrected electric quantity SOC includes a first corrected electric quantity SOC and a second corrected electric quantity SOC, the first corrected electric quantity SOC refers to an electric quantity SOC which is corrected when the current electric quantity SOC is greater than a preset electric quantity SOC threshold, the second corrected electric quantity SOC refers to an electric quantity SOC which is corrected when the current electric quantity SOC is less than the preset electric quantity SOC threshold, when the current mode of the battery is a discharging mode, the real-time voltage at that time is a first real-time voltage, the real-time current is a first real-time current, specifically, after the first real-time voltage and the first real-time current are obtained, the current discharging voltage threshold of the battery is determined through the first real-time current and the target discharging curve, and whether the current discharging voltage threshold is greater than the first real-time voltage threshold is determined, if not, the current electric quantity SOC at that is higher than the current electric quantity SOC is corrected through the first corrected electric quantity SOC, for example, if the current SOC is 85% and the preset SOC threshold is 80%, the current SOC is corrected to (79%, 80%) by the first corrected SOC, the ISS and the regeneration control are prohibited to operate at this time, the generator normally generates power to charge the battery, when the discharging mode of the battery is the discharging mode, the real-time voltage is the second real-time voltage, the real-time current is the second real-time current, specifically, after the second real-time voltage and the second real-time current are obtained, the current charging current threshold of the battery is determined by the second real-time voltage and the target charging curve, and whether the second real-time current is greater than the current charging current threshold is determined, if not, the current SOC is determined to be low, that is, the current SOC is corrected by the second corrected SOC, for example, the current SOC is 75%, the preset SOC threshold is 80%, the current SOC is corrected to (80%, 81%) where the ISS and regeneration control are allowed to operate, discharging the battery.
The present embodiment obtains the current voltage and current of the battery and the current state of the vehicle; calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state; determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode; calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC; in the embodiment, the current mode of the battery is determined through the current electric quantity SOC and the preset electric quantity SOC threshold value, then the target correction electric quantity SOC is calculated according to the real-time voltage and the real-time current, and then the current electric quantity SOC is corrected based on the target correction electric quantity SOC.
In an embodiment, as shown in fig. 3, a second embodiment of the method for correcting the misjudgment of the battery charge SOC according to the present invention is provided based on the first embodiment, before the step S40, the method further includes:
in step S401, the current temperature of the target battery is acquired.
It should be understood that the current temperature refers to a temperature at which a battery of the vehicle is located, and in order to effectively improve accuracy of obtaining the target discharge curve, the current temperature is set to 25 degrees celsius, and may also be set to other temperatures, which is not limited in this embodiment and is described by taking 25 degrees celsius as an example.
And S402, discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve.
It can be understood that the target discharge curve refers to a curve that is continuously discharged at the current temperature for a preset time period, the target discharge curve utilizes a battery discharge characteristic, the preset time period may be 30 seconds, or other time periods, this embodiment does not limit this, and the example is described with 30 seconds, since the voltage of the battery is continuously changed by discharging within the preset time period, referring to fig. 4, fig. 4 is the target discharge curve of the battery within the time periods of 25 degrees celsius and 30 seconds, the abscissa represents a current value during discharging, the ordinate represents a voltage value during discharging, and it can be known from the target discharge curve that the current value and the voltage value have a negative correlation.
Further, step S402 includes: discharging the target battery according to the current temperature within a preset time period to obtain one or more current discharge curves; obtaining a temperature current parameter set according to the one or more current discharge curves; determining a discharge current coefficient through the temperature voltage parameter set; and generating a target discharge curve according to the discharge current coefficient and the current discharge curve.
It should be understood that the target discharge curve is obtained by the discharge current coefficient and the current discharge curve, the number of the current discharge curve is not less than one, i.e. one or more, for example, the target discharge curve is f ═ f (I)Discharge@30s-25℃)+(1+IDischargeK) (T-25) 0.2/55, where k is the coefficient, IdischargeFor the battery current, since the related coefficient k is unknown, the current is measured by selecting I under the temperature current parameter setDischargeThe coefficient k is obtained by solving a set of at least two temperature-voltage parameters, and in the present embodiment, three temperature-voltage parameters are taken as an example, and when k obtained by solving at 40 degrees celsius is k1, k obtained by solving at 0 degrees celsius is k2, and k obtained by solving at-30 degrees celsius is k3, the coefficient k is 1/3(k1+ k2+ k 3).
Step S403, calculating a first corrected electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC according to the first corrected electric quantity SOC.
It can be understood that after the target discharge curve is obtained, a current discharge voltage threshold corresponding to the first real-time current is calculated through the target discharge curve, whether the current electric quantity SOC is higher or not is judged according to the current discharge voltage threshold and the first real-time voltage, if the first real-time voltage is smaller than the current discharge voltage threshold, the current electric quantity SOC is indicated to be higher, at this time, a first correction electric quantity SOC required by the battery to be corrected is calculated based on the first real-time voltage and the first real-time current, and the current electric quantity SOC is corrected through the first correction electric quantity SOC.
Further, step S403 includes: calculating the first real-time current according to the target discharge curve to obtain a current discharge voltage threshold value; when the first real-time voltage is smaller than the current discharge voltage threshold value, calculating a first correction electric quantity SOC according to the target voltage and the target current; and correcting the front electric quantity SOC through the first correction electric quantity SOC.
It should be understood that the current discharging voltage threshold refers to a voltage threshold corresponding to the first real-time current, and is specifically calculated through a target discharging curve, for example, the first real-time current is I1, the current discharging voltage threshold calculated through the target discharging curve is f (I1), and the first real-time voltage is U1, when U1 < f (I1), a first correction electric quantity SOC is calculated through U1 and I1, and the current electric quantity SOC is corrected through the first correction electric quantity SOC.
The present embodiment obtains the current temperature of the target battery; discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve; executing a step of calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC through the first correction electric quantity SOC; in the embodiment, the target battery is discharged according to the current temperature within the preset time period, the first real-time voltage and the first real-time current are calculated according to the target discharge curve to obtain the first corrected electric quantity SOC, and the current electric quantity SOC is corrected through the first corrected electric quantity SOC, so that the electric quantity SOC can be dynamically corrected.
In an embodiment, as shown in fig. 5, a third embodiment of the method for correcting the misjudgment of the battery charge SOC according to the present invention is provided based on the first embodiment, and the step S40 includes:
and S404, charging the target battery according to the current temperature in a first time period to obtain a target charging curve.
It can be understood that the target charging curve refers to a curve for charging a target battery at a current temperature and a first time period, the battery is charged at the current temperature in the first time period, during the charging process, the current gradually decreases with the passage of time, and approaches to a specific value after the first time period, the first time period may be 5 seconds, or may be other time periods, which is not limited in this embodiment, and 5 seconds is taken as an example for illustration, as the current of the battery constantly changes in the first time period, referring to fig. 6, fig. 6 is a target charging curve of the battery at 25 degrees celsius and 5 seconds, the abscissa represents time, and the ordinate represents the charging current, and it can be known from the target charging curve that the current and the time have a negative correlation.
Further, step S404 includes: charging the target battery according to the current temperature in a first time period to obtain one or more current charging curves; obtaining a temperature and current parameter set according to the one or more current charging curves; determining a charging current coefficient through a temperature current parameter set; and generating a target charging curve according to the charging current coefficient and the current charging curve.
It should be understood that the current charging curve refers to a curve for charging the target battery at the current temperature, the number of the current charging curves is not less than one, that is, one or more, an unknown charging current coefficient K exists in the current charging curve, and due to the existence of the unknown charging current coefficient K, the current charging current threshold corresponding to the second real-time voltage cannot be calculated according to the current charging curve, so that the voltage U passing through the temperature current parameter setBATThe charging current coefficient K is obtained by solving a set of at least two temperature current parameters, which is illustrated in the present embodiment by taking three temperature current parameters as an example, and the target charging curve is F (5S @ U-T) ═ F (5S @ U-25 ℃) + (T-25) × K, for example, through voltages U at 40 degrees celsius, 0 degrees celsius, and-30 degrees celsiusBATThe solved charging current coefficients are respectively K1, K2 and K3,at this time, the charging current coefficient K is 1/3(K1+ K2+ K3), and after the charging current coefficient K is obtained, the charging current coefficient K is substituted into the current charging curve, thereby generating the target charging curve.
Step S405, calculating the second real-time voltage according to the target charging curve to obtain a current charging current threshold value.
It should be understood that the second real-time voltage refers to a voltage after the battery is charged, that is, the current electric quantity SOC is smaller than a preset electric quantity SOC threshold, the current mode of the battery is a charging mode, that is, the battery is charged, so as to obtain the second real-time voltage, since both the current and the voltage of the battery are changed during the charging process, the battery is measured in real time by the voltage sensor and the current sensor, so as to obtain the second real-time voltage and the second real-time current, and after the second real-time voltage is obtained, the second real-time voltage is calculated by the target charging curve, so as to obtain the current charging current threshold.
Step S406, when the second real-time current is smaller than the current charging current threshold, calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
It can be understood that the second corrected electric quantity SOC refers to an electric quantity SOC that is corrected when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold, specifically, after a second real-time voltage and a second real-time current are obtained, a current charging current threshold of the battery is determined through the second real-time voltage and a target charging curve, and whether the second real-time current is smaller than the current charging current threshold is determined, if yes, it is determined that the current electric quantity SOC is low, and at this time, the current electric quantity SOC is corrected through the second corrected electric quantity SOC, for example, the current electric quantity SOC is 75%, the preset electric quantity SOC threshold is 80%, the current electric quantity SOC is corrected to (80%, 81%) through the second corrected electric quantity SOC, and at this time, the ISS and regeneration control are allowed to operate, so that the battery is discharged.
In the embodiment, a target charging curve is obtained by charging a target battery according to the current temperature in a first time period; calculating the second real-time voltage according to the target charging curve to obtain a current charging current threshold value; when the second real-time current is smaller than the current charging current threshold value, calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC; in the embodiment, the current charging current threshold value corresponding to the second real-time voltage is calculated through the target charging curve, whether the second real-time current is smaller than the current charging current threshold value is judged, if yes, a second correction electric quantity SOC is calculated according to the second real-time voltage and the second real-time current, and finally the current electric quantity SOC is corrected through the second correction electric quantity SOC, so that the dynamic correction of the electric quantity SOC can be realized, and the accuracy of judgment and actuation is improved.
In addition, an embodiment of the present invention further provides a storage medium, where a correction program for misjudging the battery charge SOC is stored, and when the correction program for misjudging the battery charge SOC is executed by a processor, the steps of the correction method for misjudging the battery charge SOC are implemented as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
In addition, referring to fig. 7, an embodiment of the present invention further provides a device for correcting misjudgment of battery power SOC, where the device for correcting misjudgment of battery power SOC includes:
the obtaining module 10 is used for obtaining the current voltage and current of the battery and the current state of the vehicle.
It should be understood that the present voltage refers to the voltage supplied by the battery to the vehicle, which may be measured by a voltage sensor, and may be other voltage measuring devices, and the present current refers to the current supplied by the battery to the vehicle, which may be measured by a current sensor, and may be other current measuring devices, which are varied in real time, and the present state refers to the state in which the vehicle is running, which includes acceleration, deceleration, and stationary states.
And a calculating module 20, configured to calculate a current electric quantity SOC of the battery according to the current voltage, the current, and the current state.
It can be understood that the current charge SOC refers to the remaining charge of the current vehicle battery, the charge SOC is usually expressed in percentage, and the current SOC refers to the ratio of the remaining dischargeable charge of the battery after the battery is used for a period of time or left unused for a long time to the charge of the battery in the fully charged state.
And the determining module 30 is configured to determine a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold, and obtain a corresponding real-time voltage and a corresponding real-time current according to the current mode.
It should be understood that, the preset electric quantity SOC threshold refers to a reference value for setting the electric quantity of the battery, and when the current electric quantity SOC is greater than or less than the preset electric quantity SOC threshold, the current electric quantity SOC needs to be dynamically corrected, that is, after the current electric quantity SOC is obtained, the current electric quantity SOC is compared with the preset electric quantity SOC threshold to determine the current mode of the battery.
Further, the determining module 30 is further configured to determine that the current mode of the battery is a discharging mode when the current electric quantity SOC is greater than a preset electric quantity SOC threshold; discharging the battery according to the discharge mode to obtain a first real-time voltage and a first real-time current; correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes: and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current, and correcting the current electric quantity SOC through the first correction electric quantity SOC.
It can be understood that when the current electric quantity SOC is greater than the preset electric quantity SOC threshold, it indicates that the current mode of the battery is the discharging mode, and at this time, the battery needs to be discharged to obtain a first real-time voltage and a first real-time current, where the first real-time voltage is a voltage after the battery is discharged, and the first real-time current is a current after the battery is discharged.
Further, the determining module 30 is further configured to determine that the current mode of the battery is a charging mode when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold; charging the battery according to the charging mode to obtain a second real-time voltage and a second real-time current; correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes: and calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
It should be understood that, when the current electric quantity SOC is smaller than the preset electric quantity SOC threshold, it indicates that the current mode of the battery is the charging mode, and at this time, the battery needs to be charged to obtain a second real-time voltage and a second real-time current, where the second real-time voltage is a voltage after the battery is charged, and the second real-time current is a current after the battery is discharged.
Further, the determining module 30 is further configured to obtain a parking electric quantity SOC variation and a starting electric quantity SOC of the vehicle; obtaining a lower limit electric quantity SOC according to the parking electric quantity SOC variation and the starting electric quantity SOC; when the lower limit electric quantity SOC is smaller than a target electric quantity SOC threshold value, judging whether the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC; and when the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC, determining a preset electric quantity SOC threshold according to the lower limit electric quantity SOC, the preset degradation electric quantity SOC and the preset depth of discharge electric quantity SOC.
It can be understood that the parking charge SOC variation refers to the charge in which the charge SOC varies due to the slight power consumption of the vehicle when the vehicle is turned off, the starting charge SOC refers to the lowest charge SOC of the battery for starting the vehicle, the preset depth of discharge charge SOC refers to the depth of discharge of the battery required for calculating the fuel consumption simulation, the preset depth of discharge charge SOC is the maximum value of the charge SOC of the battery, the preset degraded charge SOC refers to the lowest charge SOC of the inherent degradation of the battery, the lower limit charge SOC of the ISS and the regeneration control is calculated by the parking charge SOC variation and the starting charge SOC, that is, the lower limit charge SOC is the parking charge SOC variation plus the starting charge SOC, the target current threshold SOC is 100%, and when the lower limit charge SOC is smaller than the target current threshold SOC and the lower limit charge SOC is larger than the preset depth of discharge charge SOC, the lower limit charge SOC, the preset degraded charge SOC and the preset depth of discharge charge SOC obtain the current threshold range, and selecting a preset electric quantity SOC threshold value from the current SOC threshold value range, wherein the current SOC threshold value range is (lower limit electric quantity SOC & preset deterioration electric quantity SOC) is less than or equal to the preset electric quantity SOC threshold value and less than or equal to the preset discharging depth electric quantity SOC.
And the correction module 40 is configured to calculate a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correct the current electric quantity SOC according to the target correction electric quantity SOC.
It can be understood that, the target corrected electric quantity SOC refers to an electric quantity SOC for correcting the current electric quantity SOC, the target corrected electric quantity SOC includes a first corrected electric quantity SOC and a second corrected electric quantity SOC, the first corrected electric quantity SOC refers to an electric quantity SOC which is corrected when the current electric quantity SOC is greater than a preset electric quantity SOC threshold, the second corrected electric quantity SOC refers to an electric quantity SOC which is corrected when the current electric quantity SOC is less than the preset electric quantity SOC threshold, when the current mode of the battery is a discharging mode, the real-time voltage at that time is a first real-time voltage, the real-time current is a first real-time current, specifically, after the first real-time voltage and the first real-time current are obtained, the current discharging voltage threshold of the battery is determined through the first real-time current and the target discharging curve, and whether the current discharging voltage threshold is greater than the first real-time voltage threshold is determined, if not, the current electric quantity SOC at that is higher than the current electric quantity SOC is corrected through the first corrected electric quantity SOC, for example, if the current SOC is 85% and the preset SOC threshold is 80%, the current SOC is corrected to (79%, 80%) by the first corrected SOC, the ISS and the regeneration control are prohibited to operate at this time, the generator normally generates power to charge the battery, when the discharging mode of the battery is the discharging mode, the real-time voltage is the second real-time voltage, the real-time current is the second real-time current, specifically, after the second real-time voltage and the second real-time current are obtained, the current charging current threshold of the battery is determined by the second real-time voltage and the target charging curve, and whether the second real-time current is greater than the current charging current threshold is determined, if not, the current SOC is determined to be low, that is, the current SOC is corrected by the second corrected SOC, for example, the current SOC is 75%, the preset SOC threshold is 80%, the current SOC is corrected to (80%, 81%) where the ISS and regeneration control are allowed to operate, discharging the battery.
The present embodiment obtains the current voltage and current of the battery and the current state of the vehicle; calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state; determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode; calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC; in the embodiment, the current mode of the battery is determined through the current electric quantity SOC and the preset electric quantity SOC threshold value, then the target correction electric quantity SOC is calculated according to the real-time voltage and the real-time current, and then the current electric quantity SOC is corrected based on the target correction electric quantity SOC.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment may be referred to a method for correcting the misjudgment of the battery power SOC according to any embodiment of the present invention, and are not described herein again.
In one embodiment, the determining module 30 is further configured to obtain a parking charge amount SOC variation and a starting charge amount SOC of the vehicle; obtaining a lower limit electric quantity SOC according to the parking electric quantity SOC variation and the starting electric quantity SOC; when the lower limit electric quantity SOC is smaller than a target electric quantity SOC threshold value, judging whether the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC; and when the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC, determining a preset electric quantity SOC threshold according to the lower limit electric quantity SOC, the preset degradation electric quantity SOC and the preset depth of discharge electric quantity SOC.
In an embodiment, the determining module 30 is further configured to determine that the current mode of the battery is a discharging mode when the current electric quantity SOC is greater than a preset electric quantity SOC threshold; discharging the battery according to the discharge mode to obtain a first real-time voltage and a first real-time current; and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current, and correcting the current electric quantity SOC through the first correction electric quantity SOC.
In an embodiment, the determining module 30 is further configured to obtain a current temperature of the target battery; discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve; and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC according to the first correction electric quantity SOC.
In an embodiment, the determining module 30 is further configured to discharge the target battery according to the current temperature within a preset time period to obtain one or more current discharge curves; obtaining a temperature current parameter set according to the one or more current discharge curves; determining a discharge current coefficient through the temperature voltage parameter set; and generating a target discharge curve according to the discharge current coefficient and the current discharge curve.
In an embodiment, the determining module 30 is further configured to charge the target battery according to the current temperature in a first time period, so as to obtain a target charging curve; calculating the second real-time voltage according to the target charging curve to obtain a current charging current threshold value; and when the second real-time current is smaller than the current charging current threshold value, calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
In an embodiment, the determining module 30 is further configured to charge the target battery according to the current temperature in the first time period, so as to obtain one or more current charging curves; obtaining a temperature and current parameter set according to the one or more current charging curves; determining a charging current coefficient through a temperature current parameter set; and generating a target charging curve according to the charging current coefficient and the current charging curve.
In an embodiment, the correction module 40 is further configured to calculate the first real-time current according to the target discharge curve to obtain a current discharge voltage threshold; when the first real-time voltage is smaller than the current discharge voltage threshold value, calculating a first correction electric quantity SOC according to the target voltage and the target current; and correcting the front electric quantity SOC through the first correction electric quantity SOC.
In an embodiment, the modification module 40 is further configured to determine that the current mode of the battery is a charging mode when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold; charging the battery according to the charging mode to obtain a second real-time voltage and a second real-time current; and calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
Other embodiments or methods of implementing the correction device for battery state of charge SOC error determination according to the present invention can refer to the above embodiments, and are not redundant herein.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g., a mobile phone, a computer, an all-in-one platform workstation, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. A correction method for misjudgment of battery electric quantity SOC is characterized by comprising the following steps:
acquiring the current voltage and current of a battery and the current state of a vehicle;
calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state;
determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode;
and calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC.
2. The method according to claim 1, wherein the current mode includes a discharging mode, the real-time voltage includes a first real-time voltage, the real-time current includes a first real-time current, and the target correction charge amount SOC includes a first correction charge amount SOC;
the determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining a corresponding real-time voltage and a real-time current according to the current mode includes:
when the current electric quantity SOC is larger than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a discharging mode;
discharging the battery according to the discharge mode to obtain a first real-time voltage and a first real-time current;
correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes:
and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current, and correcting the current electric quantity SOC through the first correction electric quantity SOC.
3. The method for correcting the erroneous determination of the battery power SOC according to claim 2, wherein before calculating a first corrected power SOC according to the first real-time voltage and the first real-time current and correcting the current power SOC by the first corrected power SOC, the method further comprises:
acquiring the current temperature of a target battery;
discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve;
and calculating a first correction electric quantity SOC according to the first real-time voltage and the first real-time current according to the target discharge curve, and correcting the current electric quantity SOC according to the first correction electric quantity SOC.
4. The method for correcting the misjudgment of the battery power SOC according to claim 3, wherein the step of discharging the target battery according to the current temperature within a preset time period to obtain a target discharge curve comprises:
discharging the target battery according to the current temperature within a preset time period to obtain one or more current discharge curves;
obtaining a temperature current parameter set according to the one or more current discharge curves;
determining a discharge current coefficient through the temperature voltage parameter set;
and generating a target discharge curve according to the discharge current coefficient and the current discharge curve.
5. The method according to claim 3, wherein the step of calculating a first corrected SOC according to the first real-time voltage and the first real-time current and correcting the current SOC by the first corrected SOC according to the target discharge curve comprises:
calculating the first real-time current according to the target discharge curve to obtain a current discharge voltage threshold value;
when the first real-time voltage is smaller than the current discharge voltage threshold value, calculating a first correction electric quantity SOC according to the target voltage and the target current;
and correcting the front electric quantity SOC through the first correction electric quantity SOC.
6. The method according to claim 1, wherein the current mode comprises a charging mode, the real-time voltage comprises a second real-time voltage, the real-time current comprises a second real-time current, and the target correction charge amount SOC comprises a second correction charge amount SOC;
the determining a current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining a corresponding real-time voltage and a real-time current according to the current mode includes:
when the current electric quantity SOC is smaller than a preset electric quantity SOC threshold value, determining that the current mode of the battery is a charging mode;
charging the battery according to the charging mode to obtain a second real-time voltage and a second real-time current;
correspondingly, the calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current, and correcting the current electric quantity SOC through the target correction electric quantity SOC includes:
and calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
7. The method for correcting the erroneous determination of the battery power SOC according to claim 6, wherein the calculating a second corrected power SOC according to the second real-time voltage and the second real-time current, and correcting the current power SOC by the second corrected power SOC comprises:
charging the target battery according to the current temperature in a first time period to obtain a target charging curve;
calculating the second real-time voltage according to the target charging curve to obtain a current charging current threshold value;
and when the second real-time current is smaller than the current charging current threshold value, calculating a second correction electric quantity SOC according to the second real-time voltage and the second real-time current, and correcting the current electric quantity SOC through the second correction electric quantity SOC.
8. The method for correcting the misjudgment of the SOC of the battery according to claim 6, wherein the step of charging the target battery according to the current temperature in the first time period to obtain the target charging curve comprises:
charging the target battery according to the current temperature in a first time period to obtain one or more current charging curves;
obtaining a temperature and current parameter set according to the one or more current charging curves;
determining a charging current coefficient through a temperature current parameter set;
and generating a target charging curve according to the charging current coefficient and the current charging curve.
9. The method for correcting the misjudgment of the battery power SOC according to any one of claims 1 to 8, wherein before determining the current mode of the battery according to the current power SOC and a preset power SOC threshold, the method further comprises:
acquiring the parking electric quantity SOC variation and the starting electric quantity SOC of the vehicle;
obtaining a lower limit electric quantity SOC according to the parking electric quantity SOC variation and the starting electric quantity SOC;
when the lower limit electric quantity SOC is smaller than a target electric quantity SOC threshold value, judging whether the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC;
and when the lower limit electric quantity SOC is larger than a preset depth of discharge electric quantity SOC, determining a preset electric quantity SOC threshold according to the lower limit electric quantity SOC, the preset degradation electric quantity SOC and the preset depth of discharge electric quantity SOC.
10. A device for correcting misjudgment of battery electric quantity SOC is characterized by comprising:
the acquisition module is used for acquiring the current voltage and current of the battery and the current state of the vehicle;
the calculation module is used for calculating the current electric quantity SOC of the battery according to the current voltage, the current and the current state;
the determining module is used for determining the current mode of the battery according to the current electric quantity SOC and a preset electric quantity SOC threshold value, and obtaining corresponding real-time voltage and real-time current according to the current mode;
and the correction module is used for calculating a target correction electric quantity SOC according to the real-time voltage and the real-time current and correcting the current electric quantity SOC through the target correction electric quantity SOC.
11. A correction apparatus for battery charge level SOC misjudgment, characterized in that the correction apparatus for battery charge level SOC misjudgment comprises: a memory, a processor and a correction program for battery charge SOC misjudgment stored on the memory and operable on the processor, the correction program for battery charge SOC misjudgment being configured with a correction method for realizing battery charge SOC misjudgment according to any one of claims 1 to 9.
12. A storage medium having stored thereon a correction program for battery charge SOC misjudgment, which when executed by a processor implements a correction method for battery charge SOC misjudgment according to any one of claims 1 to 9.
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| CN117368746A (en) * | 2023-12-07 | 2024-01-09 | 深圳海辰储能科技有限公司 | Method and device for correcting battery state of charge, equipment and storage medium |
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| CN117368746A (en) * | 2023-12-07 | 2024-01-09 | 深圳海辰储能科技有限公司 | Method and device for correcting battery state of charge, equipment and storage medium |
| CN117368746B (en) * | 2023-12-07 | 2024-03-29 | 深圳海辰储能科技有限公司 | Method and device for correcting battery state of charge, equipment and storage medium |
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