CN116923186A - Battery electric quantity verification system and method and automobile - Google Patents
Battery electric quantity verification system and method and automobile Download PDFInfo
- Publication number
- CN116923186A CN116923186A CN202310818709.1A CN202310818709A CN116923186A CN 116923186 A CN116923186 A CN 116923186A CN 202310818709 A CN202310818709 A CN 202310818709A CN 116923186 A CN116923186 A CN 116923186A
- Authority
- CN
- China
- Prior art keywords
- battery
- information
- electric quantity
- correction
- initial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012795 verification Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012937 correction Methods 0.000 claims abstract description 140
- 238000012216 screening Methods 0.000 claims abstract description 60
- 238000007599 discharging Methods 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000011156 evaluation Methods 0.000 abstract description 6
- 238000012545 processing Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- 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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Abstract
The invention provides a battery electric quantity checking system, which comprises: the slave controller is used for acquiring the use information of the initial battery and the battery electric quantity information; the master controller is in communication connection with the slave controller and is used for screening the initial battery according to the use information and the battery electric quantity information so as to acquire the initial battery meeting the preset electric quantity correction condition and recording the initial battery as a target battery; the main controller is also used for controlling the discharging or charging of the target battery to generate target correction electric quantity information. According to the battery electric quantity verification system and method and the automobile, the electric quantity evaluation precision of the battery can be improved.
Description
Technical Field
The present invention relates to the field of battery management technologies, and in particular, to a system and a method for checking electric quantity of a battery, and an automobile.
Background
With the continuous development of new energy technology, a battery is widely popularized as a core power source, and the electric quantity evaluation of the battery has a critical influence on the state monitoring and the electricity utilization strategy of the battery. However, the existing battery has lower accuracy in the electric quantity evaluation of the battery due to the influence of the platform area. Therefore, there is a need for improvement.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a system and a method for checking the electric quantity of a battery, and an automobile, which improve the accuracy of evaluating the electric quantity of the battery.
To achieve the above and other related objects, the present invention provides a power calibration system for a battery, comprising:
the slave controller is used for acquiring the use information of the initial battery and the battery electric quantity information; and
the master controller is in communication connection with the slave controller and is used for screening the initial battery according to the use information and the battery electric quantity information so as to acquire the initial battery meeting the preset electric quantity correction condition and recording the initial battery as a target battery;
the main controller is also used for controlling the discharging or charging of the target battery to generate target correction electric quantity information.
In one embodiment of the present invention, the slave controller includes:
the sensing unit is used for detecting current information, voltage information and temperature information of the initial battery; and
and the battery monitoring unit is in communication connection with the sensing unit and is used for acquiring the service time information, the charging frequency information, the discharging frequency information and the battery electric quantity information of the initial battery according to the current information, the voltage information and the temperature information.
In an embodiment of the present invention, the power correction conditions include an initial power correction condition, a discharge correction condition, and a charge correction condition.
In one embodiment of the present invention, the main controller includes:
the electric quantity correction screening unit is connected with the battery monitoring unit in a communication way and is used for screening the initial battery according to the use information and the initial electric quantity correction condition so as to obtain an intermediate battery;
the discharging correction screening unit is in communication connection with the electric quantity correction screening unit and is used for screening the intermediate battery according to discharging correction conditions so as to obtain a discharging battery and a non-discharging battery;
the charging correction screening unit is in communication connection with the discharging correction screening unit and is used for screening the non-discharging battery according to charging correction conditions so as to obtain a charging battery; and
the equalization control unit is used for controlling the discharge of the discharge battery to generate target correction electric quantity information;
the balance control unit is also used for controlling the charging of the rechargeable battery to generate target correction electric quantity information;
wherein the target battery includes the discharge battery and a charge battery.
In an embodiment of the present invention, the initial charge correction condition includes at least one of usage time information, charge number information, and discharge number information in the initial battery being greater than or equal to a preset threshold.
In an embodiment of the present invention, the discharge correction condition satisfies:
SOC+SOCe-SOC1<SOClow；
the SOC is represented as real-time electric quantity information of the intermediate battery, the SOCe is represented as electric quantity accumulation error information, the SOC1 is represented as travel electric quantity demand information, and the socow is represented as platform area low-voltage information of the discharge battery.
In an embodiment of the present invention, the charge correction condition satisfies:
SOC+SOCe+SOC2>SOChigh；
the SOC is represented as real-time electric quantity information of the intermediate battery, the SOCe is represented as electric quantity accumulation error information, the SOC2 is represented as travel chargeable quantity information, and the sochgh is represented as platform area high voltage information of the rechargeable battery.
The invention also provides a battery electric quantity verification method, which comprises the following steps:
acquiring use information of an initial battery and battery electric quantity information;
screening the initial battery according to the use information and the battery power information to obtain the initial battery meeting the preset power correction condition, and recording the initial battery as a target battery; and
and controlling the discharging or charging of the target battery to generate target correction electric quantity information.
In an embodiment of the present invention, the step of screening the initial battery according to the usage information and the battery power information to obtain the initial battery that meets a preset power correction condition, and recording the initial battery as a target battery includes:
judging whether at least one of the using time information, the battery charging frequency information and the battery discharging frequency information of the initial battery is larger than or equal to a preset threshold value;
if the electric quantity information of the intermediate battery is larger than or equal to the preset threshold value, acquiring the intermediate battery, and judging whether the intermediate battery meets a discharge correction condition according to the electric quantity information of the battery;
if the time information is smaller than the preset threshold value, repeating the judgment until at least one of the time information, the battery charging time information and the battery discharging time information is larger than or equal to the preset threshold value;
if the intermediate battery meets the discharge correction condition, the discharge correction information is sent to an equalization control unit;
if the intermediate battery does not meet the discharge correction condition, acquiring a non-discharge battery and judging whether the non-discharge battery meets the charge correction condition;
if the non-discharge battery meets the charging correction condition, charging correction information is sent to an equalization control unit;
and if the non-discharging battery does not meet the charging correction condition, repeating the judgment until at least one of the using time information, the battery charging frequency information and the battery discharging frequency information is greater than or equal to the preset threshold value.
The invention also provides an automobile, which comprises the electric quantity verification system of the battery.
As described above, the invention provides a system, a method and an automobile for checking the electric quantity of a battery, which are characterized in that the battery electric quantity information of the battery is screened and judged, and the battery is subjected to charge control or discharge control according to the screening and judging result, so that the battery is separated from a voltage platform area, the electric quantity evaluation precision of the battery can be improved, the error is reduced, and a better electricity utilization strategy is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram showing a structure of a battery power calibration system according to the present invention;
FIG. 2 is a flow chart of a method for verifying the charge of a battery according to the present invention;
FIG. 3 is a flowchart of step S220 in FIG. 2;
fig. 4 shows a schematic view of an automobile according to the invention.
Description of element numbers:
100. an electric quantity checking system; 110. a slave controller; 111. a sensing unit; 112. a battery monitoring unit; 120. a main controller; 121. an electric quantity correction screening unit; 122. a discharge correction screening unit; 123. a charging correction screening unit; 124. an equalization control unit;
300. an automobile.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a BATTERY power calibration system, which can be applied to a BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS) of an automobile to improve the power calibration accuracy of a BMS. However, the electric quantity verification system is not limited thereto, and may be used in an energy storage product to enhance the power utilization strategy of the energy storage product. The battery may be a ternary lithium battery or a lithium iron phosphate battery, but is not limited thereto, and may be other types of batteries. The power verification system 100 may include a slave controller 110 and a master controller 120. The slave controller 110 may be disposed on a core module of the battery to obtain usage information of the initial battery and battery power information. The master controller 120 may be disposed on the battery, and the master controller 120 may be communicatively connected to the slave controller 110, so as to perform a screening process on the initial battery according to the usage information of the battery and the battery power information acquired from the slave controller 110, so as to acquire the initial battery that meets the preset power correction condition, and may be denoted as the target battery. However, without limitation, the main controller 120 may also be used to control the discharge or charge of the target battery to generate target corrected power information. Specifically, the usage information of the initial battery may include, but is not limited to, usage time information, charge number information, and discharge number information. The charge correction conditions may include, but are not limited to, initial charge correction conditions, discharge correction conditions, and charge correction conditions.
Further, the slave controller 110 may include, but is not limited to, a sensing unit 111 and a battery monitoring unit 112. The sensing unit 111 may be electrically connected to a core module of the battery, and is configured to detect current information, voltage information and temperature information of the initial battery. The battery monitoring unit 112 may be communicatively connected to the sensing unit 111, and is configured to calculate and obtain usage time information, charging frequency information, discharging frequency information and battery power information of the initial battery according to the current information, the voltage information and the temperature information of the initial battery. Specifically, the battery power information may include, but is not limited to, real-time power information, power accumulation error information, travel power demand information, travel chargeable amount information, platform area low voltage information, and platform area high voltage information.
Still further, the main controller 120 may include, but is not limited to, a power correction screening unit 121, a discharge correction screening unit 122, a charge correction screening unit 123, and an equalization control unit 124. The power correction filtering unit 121 may be communicatively connected to the battery monitoring unit 112, and is configured to perform a filtering process on the initial battery according to the current information, the voltage information and the temperature information of the initial battery, so as to obtain the intermediate battery. The discharging correction screening unit 122 may be communicatively connected to the power correction screening unit 121, and is configured to perform screening processing on the intermediate battery according to the discharging correction conditions, so as to obtain a discharging battery and a non-discharging battery. The charge correction screening unit 123 may be communicatively connected to the discharge correction screening unit 122 for screening the non-discharge battery according to the charge correction conditions to obtain the rechargeable battery. The equalization control unit 124 may be communicatively coupled to the discharge correction screening unit 122 for controlling discharge of the discharge battery. However, the equalization control unit 124 may be further communicatively connected to the charge correction screening unit 123 for controlling the charging of the rechargeable battery to generate the target correction power information.
It is noted that the initial charge correction condition may include at least one of usage time information, charge number information, and discharge number information in the initial battery being greater than or equal to a preset threshold. For example, when the usage time information in the initial battery is greater than or equal to a preset threshold value of the usage time, it may be determined that the initial battery satisfies the initial charge correction condition. When the charge number information or the discharge number information in the initial battery is greater than or equal to the preset threshold of the charge number or the preset threshold of the discharge number, it may also be determined that the initial battery satisfies the initial electric quantity correction condition. The discharge correction condition may satisfy the following formula,
SOC+SOCe-SOC1<SOClow。
the SOC may be represented as real-time power information of the intermediate battery, the SOCe may be represented as power accumulation error information, the SOC1 may be represented as travel power demand information, and the socow may be represented as platform area low voltage information of the discharge battery. When the power verification system 100 is applied to the BMS battery management system of the hybrid car, the travel power demand information SOC1 may be obtained by calculation from the controller 110 according to the travel navigation demand of the hybrid car. However, the travel power demand information SOC1 may be the usage demand information of the battery when the power verification system 100 is applied to other scenarios.
The charge correction condition may satisfy the following formula,
SOC+SOCe+SOC2>SOChigh。
the SOC may be represented as current power information of the intermediate battery, the SOCe may be represented as power accumulation error information, the SOC2 may be represented as travel chargeable amount information, and the sochgh may be represented as plateau high-voltage information of the rechargeable battery. When the electric quantity verification system 100 is applied to the BMS battery management system of the hybrid electric vehicle, the travel chargeable quantity information SOC2 can be obtained by the battery when the hybrid electric vehicle is driven by the pure engine, that is, the SOC2 can be obtained by calculating from the controller 110 according to the travel navigation requirement when the hybrid electric vehicle is driven by the pure engine. However, not limited thereto, when the power verification system 100 is applied to other scenarios, the trip chargeable amount information SOC2 may be chargeable amount information of the battery.
Referring to fig. 2 and fig. 3, the present invention further provides a method for checking the electric quantity of a battery, which may correspond to the electric quantity checking system in the above embodiment. The method may comprise the steps of:
step S210, obtaining the use information of the initial battery and the battery power information.
Step S220, screening the initial battery according to the use information and the battery power information to obtain the initial battery meeting the preset power correction condition, and recording the initial battery as the target battery.
Step S230, controlling the discharging or charging of the target battery to generate the target correction power information.
In one embodiment of the present invention, when step S210 is performed, specifically, the initial battery usage information and the battery level information may be acquired from the controller 110. The usage information of the initial battery may include, but is not limited to, usage time information, charge number information, and discharge number information. The battery power information may include, but is not limited to, real-time power information, power accumulation error information, travel power demand information, travel chargeable amount information, platform area low voltage information, and platform area high voltage information. The slave controller 110 may include, but is not limited to, a sensing unit 111 and a battery monitoring unit 112. The sensing unit 111 may be electrically connected to a core module of the battery, and is configured to detect current information, voltage information and temperature information of the initial battery. The battery monitoring unit 112 may be communicatively connected to the sensing unit 111, and is configured to calculate and obtain usage time information, charging frequency information, discharging frequency information and battery power information of the initial battery according to the current information, the voltage information and the temperature information of the initial battery.
Referring to fig. 3, in one embodiment of the present invention, when step S220 is performed, specifically, step S220 may include the following steps:
step S221, determining whether at least one of the usage time information of the initial battery, the battery charging frequency information, and the battery discharging frequency information is greater than or equal to a preset threshold.
Step S222, if the service time information is greater than or equal to a preset threshold, the intermediate battery is obtained, whether the intermediate battery meets the discharge correction condition is judged according to the battery electric quantity information, and if the service time information is less than the preset threshold, the step S221 is repeatedly judged until at least one of the service time information, the battery charging frequency information and the battery discharging frequency information is greater than or equal to the preset threshold.
Step S223, if the intermediate battery satisfies the discharge correction condition, the discharge correction information is transmitted to the equalization control unit.
In step S224, if the intermediate battery does not meet the discharge correction condition, a non-discharge battery is obtained, and whether the non-discharge battery meets the charge correction condition is determined.
Step S225, if the non-discharging battery meets the charge correction condition, the charge correction information is sent to the balance control unit, and if the non-discharging battery does not meet the charge correction condition, the judgment is repeated in step S221 until at least one of the usage time information, the battery charge number information and the battery discharge number information is greater than or equal to a preset threshold.
In one embodiment of the present invention, when step S221 is performed, the preset threshold may include a preset threshold of the use time of the initial battery, a preset threshold of the number of charging and a preset threshold of the number of discharging, in particular.
In one embodiment of the present invention, when step S222 is performed, specifically, the discharge correction condition may satisfy the following formula,
SOC+SOCe-SOC1<SOClow。
the SOC may be represented as real-time power information of the intermediate battery, the SOCe may be represented as power accumulation error information, the SOC1 may be represented as travel power demand information, and the socow may be represented as platform area low voltage information of the discharge battery. When the power verification system 100 is applied to the BMS battery management system of the hybrid car, the travel power demand information SOC1 may be obtained by calculation from the controller 110 according to the travel navigation demand of the hybrid car. However, the travel power demand information SOC1 may be the usage demand information of the battery when the power verification system 100 is applied to other scenarios.
In one embodiment of the present invention, when step S223 is performed, specifically, discharge correction information may be received and performed by the main controller 120. The main controller 120 may include, but is not limited to, a charge correction screening unit 121, a discharge correction screening unit 122, a charge correction screening unit 123, and an equalization control unit 124, and the equalization control unit 124 may be communicatively connected to the discharge correction screening unit 122. The power correction filtering unit 121 may be communicatively connected to the battery monitoring unit 112, and is configured to perform a filtering process on the battery according to the current information, the voltage information and the temperature information of the initial battery to obtain the target battery. The discharging correction screening unit 122 may be communicatively connected to the power correction screening unit 121, and is configured to perform screening processing on the intermediate battery according to the discharging correction conditions, so as to obtain a discharging battery and a non-discharging battery. When the discharge correction screening unit 122 determines that the intermediate battery meets the discharge correction condition, the discharge correction screening unit 122 may send discharge correction information to the equalization control unit 124 to control the discharge of the intermediate battery meeting the discharge correction condition to obtain a discharge battery, so that the voltage of the discharge battery is in a non-plateau region to obtain a battery power with higher accuracy.
In one embodiment of the present invention, when step S224 is performed, specifically, the charge correction information may be received and performed by the main controller 120. The charging correction screening unit 123 may be communicatively connected to the discharging correction screening unit 122, and is configured to perform screening processing on the non-discharging battery according to the charging correction condition, so as to obtain a charging battery. In addition, the charging correction screening unit 123 may be further connected to the equalization control unit 124 in a communication manner, so as to send charging correction information to the equalization control unit 124, where the equalization control unit 124 may control the non-discharging battery to charge so as to obtain the charging battery, and the voltage of the charging battery is in the non-platform area so as to obtain the battery power with higher precision. The charge correction condition may satisfy the following formula,
SOC+SOCe+SOC2>SOChigh。
the SOC may be represented as current power information of the intermediate battery, the SOCe may be represented as power accumulation error information, the SOC2 may be represented as travel chargeable amount information, and the sochgh may be represented as plateau high-voltage information of the rechargeable battery. When the electric quantity verification system 100 is applied to the BMS battery management system of the hybrid electric vehicle, the travel chargeable quantity information SOC2 can be obtained by the battery when the hybrid electric vehicle is driven by the pure engine, that is, the SOC2 can be obtained by calculating from the controller 110 according to the travel navigation requirement when the hybrid electric vehicle is driven by the pure engine. However, not limited thereto, when the power verification system 100 is applied to other scenarios, the trip chargeable amount information SOC2 may be chargeable amount information of the battery.
In one embodiment of the present invention, when step S225 is performed, specifically, when the battery neither satisfies the discharge correction condition nor the charge correction condition, current electric quantity information of the battery is obtained, and repeated judgment is performed on the usage information of the battery until at least one of the usage time information of the battery, the battery charge number information, and the battery discharge number information is greater than or equal to a preset threshold value, that is, the intermediate battery is obtained.
Referring to fig. 2, in one embodiment of the present invention, when step S230 is performed, the target battery is controlled to discharge or charge to generate the target correction power information. In particular, the target battery may include, but is not limited to, a discharge battery and a charge battery. The charge correction conditions may include, but are not limited to, initial charge correction conditions, discharge correction conditions, and charge correction conditions. When the initial battery satisfies the initial charge correction condition and the discharge correction condition, respectively, that is, the battery may be referred to as a discharge battery, the equalization control unit 124 of the main controller 120 may perform a discharge process on the discharge battery to generate non-plateau region low voltage information. And then, calculating the low-voltage information of the non-platform area to generate target correction electric quantity information with higher precision. When the initial battery satisfies the initial charge correction condition and the charge correction condition, i.e., the battery may be denoted as a rechargeable battery, the equalization control unit 124 of the main controller 120 may perform a charge process on the rechargeable battery to generate non-platform area high voltage information. And then, carrying out calculation processing on the high-voltage information of the non-platform area to generate target correction electric quantity information with higher precision.
Referring to fig. 1 and 4, the present invention further provides an automobile, where the automobile 300 may include, but is not limited to, a battery power calibration system 100, and the battery power calibration system 100 is provided with at least one for calibrating the power of the battery of the automobile 300. Specifically, when the automobile is in operation, the sensing unit 111 in the power check system 100 may detect and acquire current information, voltage information, and temperature information of the initial battery of the automobile. The battery monitoring unit 112 communicatively connected to the sensing unit 111 may calculate and obtain the usage time information, the charging frequency information, the discharging frequency information, and the battery power information of the initial battery according to the current information, the voltage information, and the temperature information of the initial battery. The power correction filtering unit 121, which is communicatively connected to the battery monitoring unit 112, may perform filtering processing on the initial battery according to the current information, the voltage information and the temperature information of the initial battery, so as to obtain an intermediate battery that meets the initial power correction condition. Subsequently, the discharge correction screening unit 122 may perform screening processing on the intermediate batteries satisfying the initial charge correction condition according to the discharge correction condition to obtain a discharge battery as well as a non-discharge battery. The charge correction screening unit 123 may perform screening processing on the non-discharge batteries that do not satisfy the discharge correction conditions according to the charge correction conditions to obtain the charge batteries that satisfy the charge correction conditions. And finally, the equalization control unit 124 which is respectively connected with the discharge correction screening unit 122 and the charge correction screening unit 123 in a communication way controls the discharge battery to discharge or controls the charging battery to charge, the non-platform area low-voltage information or the non-platform area high-voltage information is correspondingly obtained, and the target correction electric quantity information is generated according to the non-platform area low-voltage information or the non-platform area high-voltage information, so that the electric quantity evaluation precision of the battery is improved.
In summary, according to the battery power verification system, the battery power verification method and the automobile provided by the invention, the battery power information of the battery is screened and judged, and the battery is subjected to charge control or discharge control according to the screening and judging result, so that the battery is separated from the voltage platform area, the power evaluation precision of the battery can be improved, the error is reduced, and a better power utilization strategy is realized.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
In the description herein, numerous specific details are provided, such as examples of components and/or methods, to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, components, methods, components, materials, parts, and so forth. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.
Thus, although the invention has been described herein with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosures, and it will be appreciated that in some instances some features of the invention will be employed without a corresponding use of other features without departing from the scope and spirit of the invention as set forth. Therefore, many modifications may be made to adapt a particular situation or material to the essential scope and spirit of the present invention. It is intended that the invention not be limited to the particular terms used in following claims and/or to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Accordingly, the scope of the invention should be determined only by the following claims.
Claims (10)
1. A battery charge verification system, the system comprising:
the slave controller is used for acquiring the use information of the initial battery and the battery electric quantity information; and
the master controller is in communication connection with the slave controller and is used for screening the initial battery according to the use information and the battery electric quantity information so as to acquire the initial battery meeting the preset electric quantity correction condition and recording the initial battery as a target battery;
the main controller is also used for controlling the discharging or charging of the target battery to generate target correction electric quantity information.
2. The power verification system of a battery according to claim 1, wherein the slave controller includes:
the sensing unit is used for detecting current information, voltage information and temperature information of the initial battery; and
and the battery monitoring unit is in communication connection with the sensing unit and is used for acquiring the service time information, the charging frequency information, the discharging frequency information and the battery electric quantity information of the initial battery according to the current information, the voltage information and the temperature information.
3. The charge calibration system of claim 1, wherein the charge calibration conditions include an initial charge calibration condition, a discharge calibration condition, and a charge calibration condition.
4. The power verification system of a battery according to claim 1, wherein the main controller includes:
the electric quantity correction screening unit is connected with the battery monitoring unit in a communication way and is used for screening the initial battery according to the use information and the initial electric quantity correction condition so as to obtain an intermediate battery;
the discharging correction screening unit is in communication connection with the electric quantity correction screening unit and is used for screening the intermediate battery according to discharging correction conditions so as to obtain a discharging battery and a non-discharging battery;
the charging correction screening unit is in communication connection with the discharging correction screening unit and is used for screening the non-discharging battery according to charging correction conditions so as to obtain a charging battery; and
the equalization control unit is used for controlling the discharge of the discharge battery to generate target correction electric quantity information;
the balance control unit is also used for controlling the charging of the rechargeable battery to generate target correction electric quantity information;
wherein the target battery includes the discharge battery and a charge battery.
5. The power calibration system of claim 4, wherein the initial power calibration condition includes at least one of time of use information, charge number information, and discharge number information in the initial battery being greater than or equal to a preset threshold.
6. The power verification system of a battery according to claim 4, wherein the discharge correction condition satisfies:
SOC+SOCe-SOC1<SOClow；
the SOC is represented as real-time electric quantity information of the intermediate battery, the SOCe is represented as electric quantity accumulation error information, the SOC1 is represented as travel electric quantity demand information, and the socow is represented as platform area low-voltage information of the discharge battery.
7. The charge calibration system of claim 4, wherein the charge correction condition satisfies:
SOC+SOCe+SOC2>SOChigh；
the SOC is represented as real-time electric quantity information of the intermediate battery, the SOCe is represented as electric quantity accumulation error information, the SOC2 is represented as travel chargeable quantity information, and the sochgh is represented as platform area high voltage information of the rechargeable battery.
8. A method for verifying the charge of a battery, the method comprising:
acquiring use information of an initial battery and battery electric quantity information;
screening the initial battery according to the use information and the battery power information to obtain the initial battery meeting the preset power correction condition, and recording the initial battery as a target battery; and
and controlling the discharging or charging of the target battery to generate target correction electric quantity information.
9. The method for checking the power of a battery according to claim 8, wherein the step of screening the initial battery according to the usage information and the power information of the battery to obtain the initial battery satisfying a preset power correction condition, and recording the initial battery as a target battery comprises:
judging whether at least one of the using time information, the battery charging frequency information and the battery discharging frequency information of the initial battery is larger than or equal to a preset threshold value;
if the electric quantity information of the intermediate battery is larger than or equal to the preset threshold value, acquiring the intermediate battery, and judging whether the intermediate battery meets a discharge correction condition according to the electric quantity information of the battery;
if the time information is smaller than the preset threshold value, repeating the judgment until at least one of the time information, the battery charging time information and the battery discharging time information is larger than or equal to the preset threshold value;
if the intermediate battery meets the discharge correction condition, the discharge correction information is sent to an equalization control unit;
if the intermediate battery does not meet the discharge correction condition, acquiring a non-discharge battery and judging whether the non-discharge battery meets the charge correction condition;
if the non-discharge battery meets the charging correction condition, charging correction information is sent to an equalization control unit;
and if the non-discharging battery does not meet the charging correction condition, repeating the judgment until at least one of the using time information, the battery charging frequency information and the battery discharging frequency information is greater than or equal to the preset threshold value.
10. An automobile comprising a battery power verification system according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818709.1A CN116923186A (en) | 2023-07-04 | 2023-07-04 | Battery electric quantity verification system and method and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818709.1A CN116923186A (en) | 2023-07-04 | 2023-07-04 | Battery electric quantity verification system and method and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116923186A true CN116923186A (en) | 2023-10-24 |
Family
ID=88388774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310818709.1A Pending CN116923186A (en) | 2023-07-04 | 2023-07-04 | Battery electric quantity verification system and method and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116923186A (en) |
-
2023
- 2023-07-04 CN CN202310818709.1A patent/CN116923186A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107533109B (en) | Battery control device and electric vehicle system | |
| EP2579381B1 (en) | System and method for determination of deterioration of lithium ion secondary battery | |
| JP4702859B2 (en) | Battery status detection method | |
| EP2700966B1 (en) | Apparatus and method for estimating battery state | |
| CN110549876B (en) | Energy output control method and device and hydrogen fuel hybrid electric vehicle | |
| CN104298793B (en) | A kind of model of power battery pack power limit is counter to push away dynamic algorithm | |
| US20090051321A1 (en) | Apparatus for estimating state of charge of secondary battery | |
| US20170067967A1 (en) | Method for determining the reliability of state of health parameter values | |
| US20210132152A1 (en) | Method of managing battery, battery management system, and electric vehicle charging system having the battery management system | |
| CN106597289A (en) | Battery state-of-health measuring method | |
| CN102455411A (en) | Adaptive slowly-varying current detection | |
| US20180358819A1 (en) | A method and system for balancing a battery pack | |
| CN111381180B (en) | Method and device for determining battery capacity | |
| WO2013132907A1 (en) | Lithium-ion secondary cell system, method for testing lithium-ion secondary cell, and method for controlling lithium-ion secondary cell | |
| US20140184233A1 (en) | Method for checking deterioration of battery | |
| US11175347B2 (en) | Device and method for diagnosing battery deterioration | |
| CN105742741A (en) | SOC correction control method | |
| CN106597287A (en) | SOC and SOH measurement and calculation methods for battery | |
| CN110045291B (en) | Lithium battery capacity estimation method | |
| US20010035742A1 (en) | Charging/discharging control device and method for canceling memory effect in secondary battery | |
| KR101498764B1 (en) | Method and apparatus for battery resistance estimation, and battery management system using the same | |
| US20220390521A1 (en) | Apparatus and method for diagnosing battery | |
| JP2007333447A (en) | Charge state estimation device of secondary battery, charge state estimation method, and program | |
| JP5566926B2 (en) | Secondary battery state detection device and secondary battery state detection method | |
| CN116923186A (en) | Battery electric quantity verification system and method and automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |