CN115579989B - Charging control circuit and control method - Google Patents
Charging control circuit and control method Download PDFInfo
- Publication number
- CN115579989B CN115579989B CN202211324320.3A CN202211324320A CN115579989B CN 115579989 B CN115579989 B CN 115579989B CN 202211324320 A CN202211324320 A CN 202211324320A CN 115579989 B CN115579989 B CN 115579989B
- Authority
- CN
- China
- Prior art keywords
- charging
- module
- information
- aging
- control
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- 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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to the field of charge control and discloses a charge control circuit and a control method, wherein the circuit comprises an aging detection processing module, a charging module, a protection module, a charge judgment module, a charge input port, a charge output port and a charge control module; the aging detection processing module is connected with the charging control module, the charging control module is respectively connected with the protection module, the charging module and the charging judgment module, the aging detection processing module is used for collecting battery aging information, and the charging control module is used for determining judgment information according to the battery aging information; the charging judgment module is connected with the charging module, the charging module is connected with the protection module, the protection module is connected with the charging input port, the charging module is connected with the charging output port, the charging judgment module is used for collecting charging information, determining a judgment result according to the judgment information and the charging information, and the charging control module is used for controlling the charging of the charging module according to the judgment result. The invention improves the accuracy of charging control.
Description
Technical Field
The present invention relates to the field of charging control, and in particular, to a charging control circuit and a control method.
Background
Along with the high-speed development of new energy automobiles, the requirements of users on the charging of the new energy automobiles are higher and higher, and the requirements of the users on the control of a charging control circuit are also higher when the requirements on the normal charging of the charging automobiles are satisfied and the control accuracy of the whole charging process is improved.
The traditional charge control circuit is characterized in that a user carries out charge threshold value in advance in a self-defined charging mode, and different modes of charging are carried out on the automobile battery according to the charge threshold value. Such a charge control circuit has a great disadvantage in that the manner of defining the charge threshold does not take into account the actual battery aging and battery protection. That is, such a charge control circuit may cause a low accuracy of charge control due to failure to consider actual battery aging and battery protection.
Disclosure of Invention
The invention mainly aims to provide a charging control circuit and a control method, aiming at the technical problem of how to improve the accuracy of charging control.
In order to achieve the above object, the present invention provides a charge control circuit, which includes an aging detection processing module, a charging module, a protection module, a charge judgment module, a charge input port, a charge output port and a charge control module;
The aging detection processing module is connected with the charging control module, the charging control module is respectively connected with the protection module, the charging module is connected with the charging judgment module, the aging detection processing module is used for collecting battery aging information, and the charging control module is used for determining judgment information according to the battery aging information;
the charging judgment module is connected with the charging module, the charging module is connected with the protection module, the protection module is connected with the charging input port, the charging module is connected with the charging output port, the charging judgment module is used for collecting charging information and determining a judgment result according to the judgment information and the charging information, and the charging control module is used for carrying out charging control on the charging module according to the judgment result.
Optionally, the aging detection processing module includes a button and a timer, the timer includes a transmitting port, a reset port, a start port and a timing chip, the timing chip is respectively connected with the transmitting port, the reset port is connected with the start port, the transmitting port is connected with the charging control module, the reset port is connected with the button, the start port is connected with a bottom pressing sheet of the automobile battery box, the start port is used for transmitting a start timing instruction to the timing chip when the bottom pressing sheet of the automobile battery box is pressed down, the timing chip is used for obtaining timing information based on the start timing instruction and a preset timing rule, and the transmitting port is used for transmitting the timing information as the battery aging information to the charging control module.
Optionally, the charge control module includes ageing processing unit and singlechip chip, ageing processing unit includes ageing input, ageing processing chip and ageing output, ageing processing chip respectively with ageing input with ageing output is connected, ageing output respectively with singlechip chip with the judgement module charges, ageing input with the transmitting port is connected, ageing processing unit is used for when receiving battery ageing information, confirm the judgement information that timing information in the battery ageing information corresponds, the singlechip chip is used for according to judgement information with the judgement module charges information that gathers carries out charge control.
Optionally, the singlechip chip is a C51 series singlechip, the 10 th pin of the singlechip chip is connected with the ageing output end, the 12 th pin and the 13 th pin of the singlechip chip are connected with the protection module, the 38 th pin and the 39 th pin of the singlechip chip are connected with the charging module, the 37 th pin of the singlechip chip is connected with the charging judgment module, the 10 th pin is a singlechip data receiving pin, and the 12 th pin, the 13 th pin, the 38 th pin, the 39 th pin and the 37 th pin are singlechip control pins.
Optionally, the protection module includes first selector, first resistance, second resistance, third resistance and PNP triode, PNP triode's projecting pole respectively with first input end of first selector with charge input port and be connected, first control end of first selector with singlechip chip 12 foot is connected, first control both ends of first selector with singlechip chip 13 foot is connected, first output end of first selector with first end of first resistance is connected, first output both ends of first selector with first end of second resistance is connected, first output three-terminal of first selector with third resistance's first end is connected, PNP triode's base respectively with first resistance's second end, second resistance's second end with the second end of third resistance is connected the back with charge module, PNP triode's collector is connected with ground.
Optionally, the charging module includes second selector, precharge circuit, quick charging circuit and normal pressure charging circuit, the second input end of second selector with PNP triode's base is connected, the second control end of second selector with singlechip chip 39 th foot is connected, the second control both ends of second selector with singlechip chip 38 th foot is connected, the second output end of second selector with precharge circuit's input with charge judgement module is connected, the second output both ends of second selector with quick charging circuit's input with charge judgement module is connected, the second output three-terminal of second selector with normal pressure charging circuit's input with charge judgement module is connected, precharge circuit's output, quick charging circuit's output with normal pressure charging circuit output with charge output port is connected.
Optionally, the precharge circuit includes a third selector, a precharge resistor, an inverter, a dc converter, a voltage comparator, and a comparison voltage source, where the voltage comparator includes a comparison input end, and a comparison output end, a third control end of the third selector is connected to the comparison output end, a third input end of the third selector is connected to the second output end, a third output end of the third selector is connected to the first end of the inverter and the first end of the dc converter, a third output end of the third selector is connected to the first end of the precharge resistor, a second end of the precharge resistor is connected to the first end of the inverter and the first end of the dc converter, a second end of the inverter is connected to the second end of the dc converter and then to the charge output port, a comparison input end is connected to the second end of the inverter, and a comparison input end is connected to the voltage source.
In addition, to achieve the above object, the present invention also provides a charge control method applied to the charge control circuit, the charge control method comprising the steps of:
Acquiring battery aging information acquired by the aging detection processing module, and determining corresponding judgment information in the charging control module according to the battery aging information;
acquiring charging information acquired by the charging judgment module, and determining a judgment result in the charging control module according to the charging information and the judgment information;
and carrying out charging control on the charging module and the protection module according to the judging result.
Optionally, the step of determining a determination result in the charge control module according to the charging information and the determination information includes:
determining the voltage in the charging information, determining an acquisition circuit corresponding to the voltage, determining a threshold voltage corresponding to the acquisition circuit according to the judging information, and detecting whether the voltage is larger than the threshold voltage;
and if the voltage is larger than the threshold voltage, taking a control instruction corresponding to the threshold voltage in the judging information as a judging result.
Optionally, the step of performing charging control on the charging module and the protection module according to the determination result includes:
determining a first control instruction in the judging result, and controlling a first selector in the protection module to conduct according to the first control instruction;
And determining a second control instruction in the judging result, controlling a second selector in the charging module to conduct according to the second control instruction, and controlling charging based on the conducted second selector and the conducted first selector.
The charging control circuit comprises an aging detection processing module, a charging module, a protection module, a charging judgment module, a charging input port, a charging output port and a charging control module; the aging detection processing module is connected with the charging control module, the charging control module is respectively connected with the protection module, the charging module is connected with the charging judgment module, the aging detection processing module is used for collecting battery aging information, and the charging control module is used for determining judgment information according to the battery aging information; the charging judgment module is connected with the charging module, the charging module is connected with the protection module, the protection module is connected with the charging input port, the charging module is connected with the charging output port, the charging judgment module is used for collecting charging information and determining a judgment result according to the judgment information and the charging information, and the charging control module is used for carrying out charging control on the charging module according to the judgment result. The battery aging information is collected through the aging detection processing module, the judgment information corresponding to the battery aging information is determined at the charging control module, the charging information is collected at the same time, the judgment result is determined according to the charging information and the judgment information, and finally the charging control of the charging module is carried out according to the judgment result, so that the phenomenon that the actual battery aging and the battery protection are not considered in the defining mode of the charging threshold in the existing scheme is avoided, the charging control circuit processes the battery aging information and the charging information to obtain the judgment result, and finally the charging control is realized according to the judgment result, so that the accuracy of the charging control can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a frame structure of an embodiment of a charging control circuit according to the present invention;
FIG. 2 is an internal schematic diagram of an aging detection processing module in the charge control circuit of the present invention;
FIG. 3 is an internal schematic diagram of a charge control module in the charge control circuit of the present invention;
FIG. 4 is a schematic diagram showing the circuit connection of the protection module in the charge control circuit according to the present invention;
FIG. 5 is a schematic diagram illustrating the circuit connection of a charging module in the charging control circuit according to the present invention;
FIG. 6 is a schematic diagram of circuit connections of a precharge circuit in the charge control circuit of the present invention;
FIG. 7 is a flowchart of a charging control method according to a first embodiment of the present invention;
fig. 8 is a schematic structural diagram of a charge control device in a hardware operating environment according to an embodiment of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a charging control circuit.
In an embodiment of the present invention, as shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a charging control circuit, where the charging control circuit includes an aging detection processing module 40, a charging module 30, a protection module 20, a charging judgment module 60, a charging input port 10, a charging output port 70 and a charging control module 50;
the aging detection processing module 40 is connected with the charging control module 50, the charging control module 50 is respectively connected with the protection module 20, the charging module 30 is connected with the charging judgment module 60, the aging detection processing module 40 is used for collecting battery aging information, and the charging control module 50 is used for determining judgment information according to the battery aging information;
the charging judgment module 60 is connected with the charging module 30, the charging module 30 is connected with the protection module 20, the protection module 20 is connected with the charging input port 10, the charging module 30 is connected with the charging output port 70, the charging judgment module 60 is used for collecting charging information and determining a judgment result according to the judgment information and the charging information, and the charging control module 50 is used for performing charging control on the charging module 30 according to the judgment result.
In this embodiment, the charging control circuit may be disposed inside the automobile charging pile, and only the aging detection processing module 40 needs to be connected to the information collecting place of the automobile battery through a communication line, where the service time of the automobile battery is mainly collected at the information collecting place, and the service time of the automobile battery may also be directly obtained from the inside of the automobile. In another aspect, the charging control circuit may also be disposed in the automobile, and the aging detection processing module 40 collects the battery aging information, and then sends the battery aging information to the charging control module 50, and the charging control module 50 finds the judgment information corresponding to the battery aging information in the automobile, and finally can be used as the basis of charging control according to the judgment information. The battery aging information is aging information determined based on the use time of the vehicle battery, and the determination information is determination information of charge control defined by the battery aging information in the charge control module 50. For example, when the corresponding usage time in the battery aging information is 1 month, the determination information corresponding to 1 month in the charging control module 50 may be determined, where the voltage from the precharge to the rapid charge is cV, the precharge current limit is dA, the voltage from the rapid charge to the normal voltage charge is eV, the rapid charge current limit is fA, the voltage from the normal voltage charge to the stop charge is gV, and the normal voltage charge current limit is hA, and the corresponding determination information is not limited to the above. The determination information corresponding to each battery usage period or point in time is defined experimentally in the charge control module 50. In general, the current limit may be unchanged or slightly changed, but the voltage needs to be changed, for example, the internal storage capacity is reduced as the battery ages, if the battery is continuously charged according to the charging control mode of the normal battery, the battery will not only consume electric energy, but also have a certain loss on the service life of the battery. Therefore, the scheme can solve the problem, and the accuracy of the charging control can be further ensured by taking the aging condition into consideration for the charging control. When the judgment information is obtained, the charging is controlled. The charging judgment module 60 collects charging information, where the charging information may refer to current or voltage during charging, and a judgment result may be determined according to the charging information and the judgment information, and finally, charging control may be performed on the charging module 30 or the protection module 20, and the judgment result refers to a result obtained by comparing the charging information and the judgment information. For example, when the voltage in the charging information is greater than cV, the charging control module 50 controls the charging module 30 to enter a circuit corresponding to the fast charging; when the current in the charging information is greater than hA at normal pressure charging, the circuit is protected by the protection module 20. The judgment result can be determined through the charging information and the judgment information, and then the whole charging is controlled by the judgment result, so that the accuracy rate of charging control, the electric energy and the utilization rate of the battery can be ensured.
In an embodiment, referring to fig. 2, fig. 2 is an internal schematic diagram of an aging detection processing module in a charging control circuit, where the aging detection processing module 40 includes a key 41 and a timer 42, the timer 42 includes a transmitting port 422, a reset port 424, a start port 423, and a timer chip 421, the timer chip 421 is connected to the transmitting port 422, the reset port 424 and the start port 423 respectively, the transmitting port 422 is connected to the charging control module 50, the reset port 424 is connected to the key 41, the start port 423 is connected to an automobile battery case bottom tablet 00, the start port 423 is used for transmitting a start timing command to the timer chip 421 when the automobile battery case bottom tablet 00 is pressed, the timer chip 421 is used for starting timing based on the start timing command and a preset timing rule to obtain timing information, and the transmitting port 422 is used for transmitting the timing information as the battery aging information to the charging control module 50.
In this embodiment, compared with the conventional method of collecting the internal performance of the automobile battery and further judging the aging information, the method directly counts the time of the automobile battery through the timer 42 and further obtains the aging information. On one hand, the method can save the acquisition cost of acquiring the aging information, and can directly time to obtain the aging information, and on the other hand, the method can ensure the accuracy of acquiring the aging information, and because the battery aging and the service time have a certain relation, the aging degree can be determined only by obtaining the relation between the battery aging and the service time through experiments. In the aging detection processing module 40, a key 41 is provided to be directly connected to the reset port 424, and the start port 423 is connected to the bottom sheet 00 of the automobile battery box, so that the timing can be started only by putting in the automobile battery, the timing can be stopped by taking out the automobile battery, and the timing can be recovered when the automobile battery is put in the automobile battery box. And further, the accuracy of timing can be ensured. The key 41 will reset and time the newly installed battery, the time chip 421 may be a chip similar to a single chip microcomputer, and the functions of resetting, starting and transmitting are mainly realized, and the pressing sheet 00 at the bottom of the automobile battery box corresponds to a starting switch. When the pressing sheet 00 at the bottom of the automobile battery box is pressed down, the start port 423 sends a start timing instruction to the timing chip 421, the timing chip 421 performs timing based on the start timing instruction, and the timing has a corresponding timing rule, so that timing information is obtained according to the timing rule, and finally the timing information is sent to the charging control module 50 as battery aging information through the sending port 422. The timing start instruction is an instruction for controlling the timing chip 421 to start working, and the preset timing rule is a custom timing rule, for example, a rule for starting timing when power supply is started, or a rule for performing refinement processing on the whole module, when the battery is taken out and inserted again, the counting can be performed after adding 5 days, or 1.5 times of timing can be started when the battery is used, and 1 time of timing can be performed when the battery is in normal standby. The specific refinement count rules may be programmed in the timing chip 421. The aging information of the battery is detected through the key 41 and the timer 42 in the aging detection processing module 40, so that the accuracy of the charging control can be ensured by combining the aging with the charging control.
In an embodiment, referring to fig. 3, fig. 3 is an internal schematic diagram of a charge control module in a charge control circuit, where the charge control module 50 includes an aging processing unit 51 and a single chip microcomputer chip 52, the aging processing unit 51 includes an aging input end 512, an aging processing chip 511, and an aging output end 513, the aging processing chip 511 is respectively connected with the aging input end 512 and the aging output end 513, the aging output end 513 is respectively connected with the single chip microcomputer chip 52 and the charge judgment module 60, the aging input end 512 is connected with the transmitting port 422, the aging processing unit 51 is configured to determine judgment information corresponding to the timing information in the battery aging information when receiving the battery aging information, and the single chip microcomputer chip 52 is configured to perform charge control according to the judgment information and the charge information collected by the charge judgment module 60.
Specifically, the singlechip chip 52 is a C51 series singlechip, the 10 th pin of the singlechip chip 52 is connected with the ageing output 513, the 12 th pin and the 13 th pin of the singlechip chip 52 are connected with the protection module 20, the 38 th pin and the 39 th pin of the singlechip chip 52 are connected with the charging module 30, the 37 th pin of the singlechip chip 52 is connected with the charging judgment module 60, the 10 th pin is a singlechip data receiving pin, and the 12 th pin, the 13 th pin, the 38 th pin, the 39 th pin and the 37 th pin are singlechip control pins.
In the present embodiment, the charging control module 50 mainly controls the entire charging process. The aging processing unit 51 is actually a memory chip with a searching function, stores the judging information corresponding to each time period or each brand of battery, and when the aging input end 512 receives the battery aging information sent by the sending port 422, finds the judging information corresponding to the battery aging information in the aging processing chip 511, and sends the judging information to the singlechip chip 52 and the charging judging module 60 through the aging output end 513, so that on one hand, the singlechip chip 52 starts to work, and on the other hand, the charging judging module 60 judges according to the actually collected information. The 12 th, 13 th, 38 th, 39 th and 37 th pins can randomly select control pins, the different selected control pins directly relate to different internal control objects, and the 10 th pin is a singlechip data receiving pin for receiving data transmitted from the outside and processing internal control logic. The other aspect is that the 10 th pin of the singlechip chip 52 is connected with the ageing output end 513, so that the singlechip starts working and transmits judgment information, the charging work is performed through the 12 th pin and the 13 th pin of the singlechip chip 52 and the charging module 30, the charging work is performed through the 38 th pin and the 39 th pin of the singlechip chip 52, finally, the charging work is performed through the protection module 20 and the charging module 30 according to the charging judgment module 60 connected with the 37 th pin of the singlechip chip 52, and the internal design program controls the 12 th pin and the 13 th pin and the 38 th pin and the 39 th pin of the singlechip chip 52 to perform different working modes according to the high and low levels of the 37 th pin of the singlechip chip 52. The aging processing unit 51 and the singlechip chip 52 in the charging control module 50 can ensure accurate charging control on the protection module 20 and the charging module 30.
In an embodiment, referring to fig. 4, fig. 4 is a schematic circuit connection diagram of a protection module in a charge control circuit, where the protection module 20 includes a first selector 21, a first resistor R1, a second resistor R2, a third resistor R3, and a PNP triode Q1, an emitter E of the PNP triode Q1 is connected to a first input end 211 of the first selector 21 and the charge input port 10, a first control end 215 of the first selector 21 is connected to a third pin 12 of the single chip microcomputer 52, a first control second end 216 of the first selector 21 is connected to a third pin 13 of the single chip microcomputer 52, a first output end 214 of the first selector 21 is connected to a first end of the first resistor R1, a first output second end 213 of the first selector 21 is connected to a first end of the second resistor R2, a first output end 212 of the first selector 21 is connected to a first end of the third resistor R3, a first control second end 216 of the PNP triode Q1 is connected to a second end of the second resistor R1, and a base of the PNP triode Q1 is connected to a second end of the third resistor R2.
In this embodiment, the protection module 20 can protect the voltage of the electric vehicle during charging from being higher than the preset voltage of each charging stage, and also protect the battery and the circuits of each stage in the electric vehicle, so as to avoid the problem of damage to the battery or the circuits due to larger voltage or current. The main implementation principle of the protection module 20 is: the resistances (first resistance R1, second resistance R2, third resistance R3) connected between the emitter E and the base B of the PNP transistor Q1 are controlled by the first selector 21. Taking the first resistor R1 as an example, the first resistor R1 is disposed between the emitter E and the base B of the PNP triode Q1, so that when the voltage across the first resistor R1 reaches the turn-on voltage of the PNP triode Q1, the current of the charging input port 10 will pass through the PNP triode Q1 to be grounded (the collector C of the PNP triode Q1 is connected with the system power ground), the whole circuit is disconnected, and the current-limiting and voltage-limiting functions can be realized only by setting resistors with different resistance values, so that the first resistor R1, the second resistor R2 and the third resistor R3 can be adjustable resistors or digital adjustable resistors. And the battery in the electric automobile can be protected from the phenomenon of current overcurrent or voltage overvoltage, so that the protection of a circuit and the battery is realized. For example, when the charging is in the precharge phase, the current limit is controlled to be dA, the first resistor R1 is actually selected, and only the pins 12 and 13 are required to be 00 (0 represents low level, 1 represents high level) in the precharge phase, so that the first input terminal 211 and the first output terminal 214 are turned on; when the charging is in the fast charging stage, the current limit is required to be controlled to be fA, the second resistor R2 is actually selected, and only the 12 th pin and the 13 th pin are required to be 01 in the fast charging stage, and the first input end 211 and the first output two ends 213 are conducted; when the charging is in the normal-pressure charging stage, the current limit needs to be controlled to be hA, and the third resistor R3 is actually selected, and only the 12 th and 13 th pins need to be 10 in the normal-pressure charging stage, so that the first input end 211 and the first output end 212 are conducted. The charge judging module 60 is a single chip microcomputer chip, and mainly judges whether the current or the voltage is smaller or larger than a preset value so as to output a high level or a low level to the single chip microcomputer chip 52, for example, the first time that the current or the voltage is larger than the dA output a high level is defined, the second time that the current or the voltage is larger than the fA output a second high level, the current or the voltage is smaller than the dA output a third high level, the other current stages all output low levels, the dA < fA is defined, and the basis for judging can be defined here as other parameter values of the voltage or the circuit. The first high level of the 37 th pin of the singlechip chip 52 can lead the 12 th pin and the 13 th pin to be 00, the second high level 12 pin and the 13 th pin to be 01, and the third high level 12 pin and the 13 th pin to be 10, thereby ensuring the current-limiting voltage-limiting protection, and guaranteeing the service life of the battery and the electric components inside various circuits.
In an embodiment, referring to fig. 5, fig. 5 is a schematic circuit connection diagram of a charging module in a charging control circuit, where the charging module 30 includes a second selector 31, a precharge circuit 32, a fast charging circuit 33, and an atmospheric charging circuit 34, a second input end 311 of the second selector 31 is connected to a base B of the PNP transistor Q1, a second control end 315 of the second selector 31 is connected to a 39 th pin of the singlechip chip 52, a second control two end 316 of the second selector 31 is connected to a 38 th pin of the singlechip chip 52, a second output end 314 of the second selector 31 is connected to an input end 321 of the precharge circuit and the charging judgment module 60, a second output two end 313 of the second selector 31 is connected to an input end 331 of the fast charging circuit and the charging judgment module 60, a second output end 312 of the second selector 31 is connected to an input end 341 of the atmospheric charging circuit and the charging judgment module 60, and an output end 322 of the fast charging circuit is connected to an output end 322 of the atmospheric charging circuit 70.
In the present embodiment, the charging module 30 mainly selects different charging circuits according to different stages. The main implementation principle is as follows: different circuit gating is realized according to the high level times of the 37 th pin of the singlechip chip 52, for example, the voltage change process of 0-5V in the battery charging process is performed, the voltage is precharged from 0-2.5V, the voltage is rapidly charged from 2.5-5V, the voltage is charged at normal pressure from 5-2.5V, the voltage detected by the charging judging module 60 is less than 2.5V, the first high level is sent out, and the 39 th pin and the 38 th pin are 00 in the precharge stage, so that the second input end 311 and the second output end 314 are conducted; when the voltage detected by the charge judging module 60 reaches 2.5V, a second high level is sent out, and in the fast charge stage, the 39 th pin and the 38 th pin are 01, and the second input end 311 and the second output end 312 are conducted; when the voltage detected by the charging judgment module 60 reaches 5V, a third high level is sent out, and the voltage is in a normal-pressure charging stage, wherein the 39 th pin and the 38 th pin are 10, and the second input end 311 and the second output end 312 are conducted; when the voltage detected by the charge judging module 60 is less than 2.5V again, a fourth high level is sent out, the 39 th pin and the 38 th pin are 11 in the charge stopping stage, the second input end 311 is conducted to hang in the air, the connection between the charge output port 70 and the base B of the PNP triode Q1 is disconnected, and the charge is stopped. The charge judgment module 60 may be connected to the output terminal 322 of the precharge circuit, the output terminal 332 of the fast charge circuit and the output terminal 342 of the normal voltage charge circuit, and the detection is based on the judgment information corresponding to the battery aging information in the aging processing chip 511, where the judgment information corresponding to the different battery aging information is different, and is not limited herein. The second selector 31 in the charging module 30 can accurately control different stages according to the judgment information, so that the accurate charging of each stage can be ensured, and the battery can be protected by timely power failure when the charging is full.
In an embodiment, referring to fig. 6, the circuit connection schematic of the precharge circuit in the charge control circuit is shown in fig. 6, the precharge circuit 32 includes a third selector 323, a precharge resistor R4, an inverter 326, a dc converter 327, a voltage comparator 324, and a comparison voltage source 325, the voltage comparator 324 includes a comparison input terminal 3E, a comparison input terminal 3F, and a comparison output terminal 3G, the third control terminal 3D of the third selector 323 is connected to the comparison output terminal 3G, the third input terminal 3A of the third selector 323 is connected to the second output terminal 314, the third output terminal 3B of the third selector 323 is connected to the first terminal of the inverter 326 and the first terminal of the dc converter 327, the third output terminal 3C of the third selector 323 is connected to the first terminal of the precharge resistor R4, the second terminal of the precharge resistor R4 is connected to the first terminal of the inverter 326 and the first terminal of the dc converter 326, the second output terminal of the second comparator 327 is connected to the second terminal of the dc converter 326, and the second input terminal of the comparison resistor R4 is connected to the second terminal of the dc converter 327, and the second input terminal of the second comparator is connected to the first terminal of the dc converter 327.
In this embodiment, the third selector 323 directly outputs the low level at the comparison output terminal 3G to turn on the third input terminal 3A and the third output terminal 3B, so that the current at the second output terminal 314 directly charges the capacitor in the inverter 326. After the capacitor voltage in the inverter 326 reaches a certain value, the voltage at the comparison input end 3E of the voltage comparator 324 is greater than the voltage of the comparison voltage source 325 in the comparison input end 3F, so that the comparison output end 3G outputs a high level, the third input end 3A and the third output end 3C are turned on, and the pre-charging by the dc converter 327 is started. Since the dc converter 327 is started after the capacitor in the inverter 326 is precharged, the dc converter 327 is prevented from being started during the precharge process, so that the reduction of the total resistance in the circuit, the increase of the current and the risk of burning out the precharge resistor R4 caused by the parallel connection of the dc converter 327 and the precharge resistor R4 are avoided, and the precharge resistor R4 with high power is not required to be selected, thereby reducing the cost, protecting the precharge circuit and ensuring the reliable completion of the precharge process.
Further, referring to fig. 8, fig. 8 is a schematic structural diagram of a charge control device of a hardware running environment according to an embodiment of the present invention.
As shown in fig. 8, the charge control device may include: processor 0003, e.g. central processing unit (Central Processing Unit, CPU), communication bus 0001, fetch interface 0002, processing interface 0004, memory 0005. Wherein a communication bus 0001 is used to enable connected communication between these components. The acquisition interface 0002 may comprise an information acquisition device, an acquisition unit such as a computer, and the optional acquisition interface 0002 may also comprise a standard wired interface, a wireless interface. Processing interface 0004 may optionally comprise a standard wired interface, a wireless interface. The Memory 0005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 0005 may alternatively be a storage device separate from the aforementioned processor 0003.
It will be appreciated by those skilled in the art that the structure shown in fig. 8 does not constitute a limitation of the charge control device, and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
As shown in fig. 8, an operating system, an acquisition interface module, a processing interface module, and a charge control program may be included in a memory 0005 as one type of computer storage medium.
In the charge control device shown in fig. 8, a communication bus 0001 is mainly used to realize connection communication between components; the acquisition interface 0002 is mainly used for connecting a background server and carrying out data communication with the background server; the processing interface 0004 is mainly used for connecting a deployment end (user end) and carrying out data communication with the deployment end; the processor 0003 and the memory 0005 in the charge control apparatus of the present invention may be provided in the charge control apparatus, which invokes the charge control program stored in the memory 0005 through the processor 0003 and executes the charge control method provided by the embodiment of the present invention.
Further, referring to fig. 7, a flowchart of a first embodiment of the charging control method according to the present invention is provided based on an embodiment of the charging control circuit, where the steps of the charging control method include:
step S10, battery aging information acquired by the aging detection processing module is acquired, and corresponding judgment information in the charging control module is determined according to the battery aging information;
in this embodiment, the battery aging information collected by the aging detection processing module is obtained, so that the corresponding judgment information in the charging control module is determined according to the battery aging information. The battery aging information can be known as battery use duration according to the specification of the aging detection processing module, the judgment information refers to the voltage threshold value and the like which are determined according to the battery use duration and enter different charging stages and limit the current and limit the voltage, and the battery is stopped to be charged, and a user can store the judgment information of the battery with different use durations and types in the charging control module in advance so as to provide judgment basis for the subsequent charging, and meanwhile, the accuracy of charging control can be ensured.
Step S20, acquiring charging information acquired by the charging judgment module, and determining a judgment result in the charging control module according to the charging information and the judgment information;
in this embodiment, when determining the determination information, the charging determination module is controlled to collect the charging information, where the charging information refers to a voltage or current value in an actual circuit, so as to determine, according to the voltage or current value and the determination information, to obtain a determination result, that is, determine, according to the voltage or current value, which circuit needs to be turned on by the charging current, and select which protection resistor. Wherein the step of determining a determination result in the charge control module according to the charge information and the determination information includes:
step S21, determining the voltage in the charging information, determining an acquisition circuit corresponding to the voltage, determining a threshold voltage corresponding to the acquisition circuit according to the judging information, and detecting whether the voltage is larger than the threshold voltage;
in this embodiment, by determining the voltage in the charging information and determining the acquisition circuit corresponding to the voltage, the acquisition circuit is a circuit for acquiring the voltage, and determining the threshold voltage corresponding to the acquisition circuit in the judgment information, and finally detecting whether the voltage is greater than the threshold voltage, where the threshold voltage is a threshold value of each circuit operation, for example, 0-2.5V is a precharge circuit, and if the threshold voltage exceeds 2.5V, the fast charging circuit, that is, 2.5V is a threshold voltage, the mode of determining how to determine the acquisition circuit corresponding to the voltage is that the acquired voltage rises within 0-2.5V, and the fast charging circuit is the precharge circuit; the fast charge circuit is the one with a rise within 2.5-5V. On the other hand, the charging judgment module can judge through the acquisition result of the charging judgment module, for example, when 2.5V is acquired for the first time and enters the fast charging circuit threshold, 5V is acquired and enters the normal-pressure charging circuit threshold, 2.5V is acquired again and enters the stopping charging circuit threshold, the acquisition time can be delayed as far as possible, so that the problem of low acquisition accuracy rate caused by the phenomenon of voltage and current fluctuation occurs, and the judgment can be further ensured through the acquired charging information and judgment information.
Step S22, if the voltage is greater than the threshold voltage, taking a control instruction corresponding to the threshold voltage in the judgment information as a judgment result.
In this embodiment, when the voltage is greater than the threshold voltage, a control instruction corresponding to the threshold voltage in the judgment information is used as a judgment result, where the control instruction refers to an instruction for controlling the level of the 12 th pin and the 13 th pin and the 39 th pin and the 38 th pin of the single chip microcomputer, and different outputs of the single chip microcomputer chip can be realized according to the voltage and the threshold voltage, and the judgment result is different control instructions generated according to the charging information and the judgment information. For example, the voltage of 2.4V is smaller than the threshold voltage of 2.5V entering the quick charging circuit, so that the control command continues to output the control command of the pre-charging circuit; the voltage of 2.5V is equal to the threshold voltage of 2.5V entering the quick charging circuit, so that the control instruction can continuously output the control instruction of the quick charging circuit, the accuracy of the control instruction obtained by charging control is further ensured, and the accuracy of the charging control can be further ensured.
And step S30, carrying out charging control on the charging module and the protection module according to the judging result.
In this embodiment, after the determination result is obtained, charging control is performed on the charging module and the protection module according to the determination result. The step of controlling the charging of the charging module and the protection module according to the judging result includes:
Step S31, a first control instruction in the judging result is determined, and a first selector in the protection module is controlled to conduct according to the first control instruction;
step S32, determining a second control instruction in the determination result, controlling a second selector in the charging module to conduct according to the second control instruction, and performing charging control based on conducting the second selector and the first selector.
In this embodiment, a first control instruction in the judgment result is determined, and the first selector in the protection module is controlled to conduct according to the first control instruction, where the first control instruction is an instruction for controlling the protection module to select different protection resistors, and meanwhile, a second control instruction in the judgment result is determined, and the second selector in the charging module is controlled to conduct according to the second control instruction, where the second control instruction is an instruction for controlling the circuit in the charging module to conduct. For example, when the control instruction corresponds to the precharge, the first resistor in the protection module is selected as the protection resistor through the first control instruction, and the precharge circuit in the charging module is selected as the charging circuit through the second control instruction, so that the circuits in different stages can be accurately selected while different protection circuits are required, and the charging control accuracy is improved.
The invention also provides a charging control device.
The device of the invention comprises: the charging control system comprises a memory, a processor and a charging control program stored in the memory and capable of running on the processor, wherein the charging control program realizes the steps of the charging control method when being executed by the processor.
The invention also provides a computer storage medium.
The computer storage medium of the present invention has stored thereon a charge control program which, when executed by a processor, implements the steps of the charge control method as described above.
The method implemented when the charging control program running on the processor is executed may refer to various embodiments of the charging control method of the present invention, which are not described herein again.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (6)
1. The charging control circuit is characterized by comprising an aging detection processing module, a charging module, a protection module, a charging judging module, a charging input port, a charging output port and a charging control module;
The aging detection processing module is connected with the charging control module, the charging control module is respectively connected with the protection module, the charging module and the charging judgment module, the aging detection processing module is used for collecting battery aging information, the charging control module is used for determining judgment information according to the battery aging information, and the battery aging information comprises timing information;
the charging judgment module is connected with the charging module, the charging module is connected with the protection module, the protection module is connected with the charging input port, the charging module is connected with the charging output port, the charging judgment module is used for collecting charging information and determining a judgment result according to the judgment information and the charging information, and the charging control module is used for carrying out charging control on the charging module according to the judgment result, wherein the judgment information refers to voltage thresholds which are determined according to the use time of a battery and enter different charging stages, and voltage thresholds for limiting current and limiting voltage and stopping charging;
the charging control module comprises an aging processing unit and a singlechip chip, the singlechip chip is a C51 series singlechip, the charging module comprises a second selector, a precharge circuit, a quick charging circuit and a normal pressure charging circuit, the second input end of the second selector is connected with the base electrode of a PNP triode in the protection module, the second control end of the second selector is connected with the 39 th pin of the singlechip chip, the second control two ends of the second selector are connected with the 38 th pin of the singlechip chip, the second output end of the second selector is connected with the input end of the precharge circuit and the charging judgment module, the second output two ends of the second selector are connected with the input end of the quick charging circuit and the charging judgment module, the second output three ends of the second selector are connected with the input end of the normal pressure charging circuit and the charging judgment module, and the output end of the precharge circuit, the output end of the quick charging circuit and the output end of the charging circuit are connected with the output end of the normal pressure charging circuit;
The aging detection processing module comprises a key and a timer, the timer comprises a sending port, a reset port, a starting port and a timing chip, the timing chip is respectively connected with the sending port, the reset port and the starting port, the sending port is connected with the charging control module, the reset port is connected with the key, the key is used for carrying out reset timing operation on a newly-loaded battery, the starting port is connected with a bottom pressing sheet of an automobile battery box, and the starting port is used for sending a timing starting instruction to the timing chip when the bottom pressing sheet of the automobile battery box is pressed down, so that the timing is started when the automobile battery is put in, the timing is taken out and stopped, and the timing is recovered when the automobile battery is put in again; the timing chip is used for starting timing based on the timing starting instruction and a preset timing rule to obtain timing information, and the sending port is used for sending the timing information to the charging control module as the battery aging information.
2. The charge control circuit of claim 1, wherein the aging processing unit comprises an aging input end, an aging processing chip and an aging output end, the aging processing chip is respectively connected with the aging input end and the aging output end, the aging output end is respectively connected with the singlechip chip and the charge judgment module, the aging input end is connected with the transmitting port, the aging processing unit is used for determining judgment information corresponding to the timing information in the battery aging information when the battery aging information is received, and the singlechip chip is used for carrying out charge control according to the judgment information and the charge information acquired by the charge judgment module.
3. The charge control circuit of claim 2, wherein a 10 th pin of the single chip microcomputer chip is connected with the aging output end, a 12 th pin and a 13 th pin of the single chip microcomputer chip are connected with the protection module, a 38 th pin and a 39 th pin of the single chip microcomputer chip are connected with the charge module, a 37 th pin of the single chip microcomputer chip is connected with the charge judgment module, a 10 th pin is a single chip microcomputer data receiving pin, and a 12 th pin, a 13 th pin, a 38 th pin, a 39 th pin and a 37 th pin are single chip microcomputer control pins.
4. The charge control circuit of claim 3, wherein the protection module comprises a first selector, a first resistor, a second resistor, a third resistor and a PNP triode, wherein an emitter of the PNP triode is connected with a first input end of the first selector and the charge input port respectively, a first control end of the first selector is connected with a 12 th pin of the single chip microcomputer chip, a first control two end of the first selector is connected with a 13 th pin of the single chip microcomputer chip, a first output end of the first selector is connected with a first end of the first resistor, a first output two end of the first selector is connected with a first end of the second resistor, a first output three end of the first selector is connected with a first end of the third resistor, a base of the PNP triode is connected with a second end of the first resistor respectively, a second end of the second resistor and a second end of the third resistor are connected with the charge module after being connected, and a collector of the PNP triode is grounded.
5. A charge control method, characterized in that the charge control method is applied to the charge control circuit of any one of claims 1 to 4, the steps of the charge control method comprising:
acquiring battery aging information acquired by the aging detection processing module, and determining corresponding judgment information in the charging control module according to the battery aging information, wherein the battery aging information comprises timing information;
acquiring charging information acquired by the charging judgment module, and determining a judgment result in the charging control module according to the charging information and the judgment information;
and performing charging control on the charging module and the protection module according to the judging result, wherein the step of performing charging control on the charging module and the protection module according to the judging result comprises the following steps: determining a first control instruction in the judging result, and controlling a first selector in the protection module to conduct according to the first control instruction; determining a second control instruction in the judging result, controlling a second selector in the charging module to conduct according to the second control instruction, and controlling charging based on the conducted second selector and the first selector; the first control instruction is used for controlling instructions for selecting different protection resistors in the protection module, and the second control instruction is used for controlling instructions for conducting circuits in the charging module.
6. The charge control method according to claim 5, wherein the step of determining a determination result in the charge control module based on the charge information and the determination information includes:
determining the voltage in the charging information, determining an acquisition circuit corresponding to the voltage in the charging information, wherein the acquisition circuit is a circuit for acquiring the voltage in the charging information, determining a threshold voltage corresponding to the acquisition circuit according to the judging information, and detecting whether the voltage in the charging information is larger than the threshold voltage;
and if the voltage in the charging information is larger than the threshold voltage, taking a control instruction corresponding to the threshold voltage as a judging result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211324320.3A CN115579989B (en) | 2022-10-26 | 2022-10-26 | Charging control circuit and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211324320.3A CN115579989B (en) | 2022-10-26 | 2022-10-26 | Charging control circuit and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115579989A CN115579989A (en) | 2023-01-06 |
| CN115579989B true CN115579989B (en) | 2023-07-04 |
Family
ID=84586485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211324320.3A Active CN115579989B (en) | 2022-10-26 | 2022-10-26 | Charging control circuit and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115579989B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115940362B (en) * | 2023-02-08 | 2023-06-09 | 深圳市科宇电源科技有限公司 | Self-adaptive adjusting power supply circuit and self-adaptive adjusting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832333A (en) * | 2018-02-09 | 2020-02-21 | 株式会社Lg化学 | Apparatus and method for estimating state of secondary battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000060025A (en) * | 1998-08-06 | 2000-02-25 | Matsushita Electric Ind Co Ltd | Uninterruptible power unit |
| CN101841177B (en) * | 2010-04-23 | 2012-10-24 | 北汽福田汽车股份有限公司 | Method and system for protecting electric vehicle pre-charging circuit |
| US10132867B1 (en) * | 2017-05-15 | 2018-11-20 | Semiconductor Components Industries, Llc | Methods and apparatus for measuring battery characteristics |
| CN111864697B (en) * | 2020-09-01 | 2022-05-24 | 臻驱科技（上海）有限公司 | Overcurrent protection circuit and method and system for judging whether power supply is overhauled |
| CN112622693A (en) * | 2020-12-25 | 2021-04-09 | 广州橙行智动汽车科技有限公司 | Battery management method and device and vehicle |
-
2022
- 2022-10-26 CN CN202211324320.3A patent/CN115579989B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832333A (en) * | 2018-02-09 | 2020-02-21 | 株式会社Lg化学 | Apparatus and method for estimating state of secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115579989A (en) | 2023-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3079795C (en) | Emergency starting power supply and emergency start method | |
| WO2020043128A1 (en) | Method and device for determining charging state of battery, and chip, battery and aircraft | |
| CN109490789B (en) | Battery on-site detection circuit and method and intelligent wearable equipment | |
| EP3922503A1 (en) | Load access detection method, switch circuit and battery management system | |
| CN115579989B (en) | Charging control circuit and control method | |
| CN111751737B (en) | Self-discharge current calculation method, device and equipment of power battery and storage medium | |
| EP3185348B1 (en) | A battery information detection and control method, smart battery,terminal and computer storage medium | |
| CN219096505U (en) | Charging awakening detection circuit, battery management system and electric automobile | |
| US10608455B2 (en) | Quick battery charging with protection based on regulation relative state of charge | |
| CN109596989B (en) | Method and device for displaying electric quantity of electronic equipment and electronic equipment | |
| CN110875610A (en) | Electronic equipment power supply method and device, electronic equipment and storage medium | |
| CN203720253U (en) | Power-down detection circuit | |
| CN112448448B (en) | Charging control method, device, earphone, electronic device and readable storage medium | |
| CN112117740B (en) | Under-voltage protection trigger circuit, under-voltage protection device and power supply system | |
| JP6583718B2 (en) | Battery deterioration judgment device | |
| JP2001327086A (en) | Charging circuit | |
| KR20230097066A (en) | Overdischarge protection method and system, vehicle, battery management system and storage medium | |
| CN112557927A (en) | Method for determining standing time of battery | |
| CN111970164A (en) | System, method, device, terminal and storage medium for detecting state of communication module | |
| CN109903792B (en) | Method, device and equipment for storing and reading parameters of energy storage battery in energy storage system | |
| CN105207321A (en) | Charging method, charging device and power device | |
| CN105100440A (en) | Method for determining initial electric quantity of mobile terminal and mobile terminal | |
| CN216184632U (en) | Alternating current charging awakens acquisition circuit up | |
| CN218524856U (en) | Chip reset detection circuit and power consumption equipment | |
| JPH09238431A (en) | Method of charging cell and charger |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |