CN113219356B - Battery detection system and method - Google Patents
Battery detection system and method Download PDFInfo
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- CN113219356B CN113219356B CN202110433411.XA CN202110433411A CN113219356B CN 113219356 B CN113219356 B CN 113219356B CN 202110433411 A CN202110433411 A CN 202110433411A CN 113219356 B CN113219356 B CN 113219356B
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- 238000001514 detection method Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title description 28
- 238000005070 sampling Methods 0.000 claims abstract description 40
- 230000002441 reversible effect Effects 0.000 claims abstract description 30
- 238000007600 charging Methods 0.000 claims description 242
- 239000003990 capacitor Substances 0.000 claims description 27
- 230000002159 abnormal effect Effects 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 15
- 238000010277 constant-current charging Methods 0.000 claims description 13
- 238000010280 constant potential charging Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
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- 230000008094 contradictory effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to the technical field of batteries, and discloses a battery detection system and a battery detection method, wherein the system comprises a sampling module and a control module which are connected in sequence, and the input end of the sampling module is connected with a battery in an automatic elevator rescue system; when the elevator automatic rescue system is powered on for the first time, the sampling module collects the open-circuit voltage of the battery and sends the open-circuit voltage to the control module; the control module determines that the battery is in an unconnected state when the open-circuit voltage meets a first preset fault voltage; the control module determines that the battery is in a reverse connection state when the open-circuit voltage does not meet the first preset fault voltage and meets the second preset fault voltage; the first preset fault voltage is greater than the second preset fault voltage; and the control module sends a fault signal to the display terminal to display the fault type when the battery is in an unconnected state or a reverse connection state. According to the invention, the battery is detected on line based on the charge control algorithm and the charge logic curve, whether the battery is not connected or damaged can be detected, and the detection is accurate and reasonable.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery detection system and a battery detection method.
Background
An automatic elevator rescue device (automatic rescue operation device for lifts, elevator ARD) is a special rescue power supply device designed for an elevator application scene. In the use process of the elevator, once a power supply system (such as an external power grid) fails (such as power failure or phase failure, etc.), life and property safety of passengers trapped in the elevator can be threatened. The elevator ARD is put into operation when the situation occurs, namely, the connection line of the elevator and an external power grid is disconnected, meanwhile, a battery matched with the ARD is used for supplying power to an elevator control system through an inversion technology, and the elevator control system is matched to slowly run an elevator car to a nearby landing (or a designated landing) to open a door, so that passengers can rapidly walk out of the elevator, and the life and property safety of the passengers is guaranteed.
When the elevator ARD works in a charging state, the main circuit of the elevator ARD is essentially a battery charging power supply, and the main circuit is formed by a flyback switching power supply, because in the charging process, the battery has the risk of being disconnected with a system because of disconnection of a hardware loop, meanwhile, the battery has the risk of faults or damages in the charging and discharging process of a plurality of rounds, the charging quality of the battery directly influences whether the elevator can effectively transport passengers to a safety flat layer in an emergency state, so that the problem of the battery end needs to be fed back by the ARD in time, but the problem of the existing ARD for detecting the battery is generally only to detect the open-circuit voltage of a primary battery in a power-on mode, and to check whether the open-circuit voltage of the battery is lower than the minimum chargeable voltage of the battery.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a battery detection system and method, and aims to solve the technical problems that the existing ARD detection battery is only powered on for the first time and is effective in detection, cannot be monitored in real time and has risks of detection omission and overdetection.
In order to achieve the above purpose, the invention provides a battery detection system, which comprises a sampling module and a control module which are connected in sequence, wherein the input end of the sampling module is connected with a battery in an automatic elevator rescue system; wherein,
when the elevator automatic rescue system is powered on for the first time, the sampling module is used for collecting the open-circuit voltage of the battery and sending the open-circuit voltage to the control module;
the control module is used for judging whether the open-circuit voltage meets a first preset fault voltage or not, and determining that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage;
the control module is further configured to determine whether the open-circuit voltage meets a second preset fault voltage when the open-circuit voltage does not meet the first preset fault voltage, and determine that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage;
And the control module is also used for sending a corresponding fault signal to the display terminal when the battery is in the unconnected state or the reversely connected state so as to display the fault type of the battery.
Optionally, the control module is further configured to access the battery to a battery charging loop when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, and charge the battery according to a preset charging logic.
Optionally, the battery detection system further comprises: the charging contactor is respectively connected with the battery, the battery charging loop and the control module; wherein,
and the control module is used for closing the charging contactor when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage so as to connect the battery into the battery charging loop.
Optionally, the battery charging loop comprises a rectifying circuit and a filtering output circuit which are connected in sequence; the rectifying circuit is connected with the input end of the power grid, the filtering output circuit is connected with the battery, wherein,
the rectification circuit is used for receiving the alternating voltage input by the input end of the power grid, rectifying the alternating voltage and outputting a rectified direct voltage to the filtering output circuit;
The filtering output circuit is used for filtering the rectified direct current voltage and outputting the filtered direct current voltage to the battery so as to charge the battery.
Optionally, the filter output circuit includes a fuse, a first capacitor, a second capacitor, a first resistor, a second resistor, a first diode, a second diode, a transformer, and a first MOS transistor; wherein,
the first end and the second end of the fuse are respectively connected with the output end of the rectifying circuit, the first end of the first capacitor is connected with the first end of the fuse, the first end of the first resistor is connected with the first end of the first capacitor, and the second end of the first resistor is connected with the second end of the first capacitor;
the primary side first end of the transformer is connected with the first end of the first resistor, the primary side second end of the transformer is connected with the anode of the first diode, and the cathode of the first diode is connected with the second end of the first resistor;
the first end of the secondary side of the transformer is connected with the anode of the second diode, the cathode of the second diode is connected with the first end of the second capacitor, the second end of the second capacitor is connected with the second end of the secondary side of the transformer, the first end of the second capacitor is connected with the anode of the battery, the second end of the second capacitor is connected with the first end of the second resistor, and the second end of the second resistor is connected with the cathode of the battery.
In addition, in order to achieve the above object, the present invention also proposes a battery detection method based on the battery detection system as described above, the battery detection system including a sampling module and a control module connected in sequence, the battery detection method including the steps of:
when the elevator automatic rescue system is powered on for the first time, the sampling module collects the open-circuit voltage of the battery and sends the open-circuit voltage to the control module;
the control module judges whether the open-circuit voltage meets a first preset fault voltage or not, and determines that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage;
the control module judges whether the open-circuit voltage meets a second preset fault voltage or not when the open-circuit voltage does not meet the first preset fault voltage, and determines that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage;
and when the battery is in an unconnected state or a reverse connected state, the control module sends a corresponding fault signal to the display terminal so as to display the fault type of the battery.
Optionally, when the open-circuit voltage does not meet the first preset fault voltage, the control module further includes, after the step of determining whether the open-circuit voltage meets a second preset fault voltage:
and when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, the control module is used for connecting the battery into a battery charging loop and charging the battery according to preset charging logic.
Optionally, the step of charging the battery according to a preset charging logic includes:
acquiring a battery voltage, judging whether the battery voltage meets a first charging voltage, and charging the battery with a first constant current according to an activated charging strategy when the battery voltage meets the first charging voltage;
when the battery voltage meets a second charging voltage, charging the battery with a second constant current according to a constant current charging strategy, wherein the second charging voltage is larger than the first charging voltage;
when the battery voltage meets a third charging voltage, charging the battery with a third constant current according to a constant voltage charging strategy, wherein the third charging voltage is larger than the second charging voltage;
And acquiring the current charging current of the battery, and charging the battery according to a step-down charging strategy when the current charging current is a preset current so as to enable the battery to be in a full state.
Optionally, after the step of charging the battery according to the step-down charging strategy to make the battery in a full state, the method further includes:
the control module outputs and adjusts charging voltage to the battery, obtains current battery voltage and judges whether the current battery voltage meets the line break fault voltage;
when the current battery voltage meets the disconnection fault voltage, determining that the battery is in a disconnection state;
and when the battery is in a disconnection state, sending a disconnection fault signal to a display terminal so as to display the disconnection fault of the battery.
Optionally, the step of outputting, by the control module, the adjusted charging voltage to the battery, obtaining a current battery voltage, and determining whether the current battery voltage meets the line break fault voltage further includes:
when the current battery voltage does not meet the broken line fault voltage, judging whether the current battery voltage meets an abnormal damage voltage, wherein the abnormal damage voltage is larger than the broken line fault voltage;
When the current battery voltage meets the abnormal damage voltage, determining that the battery is in an abnormal damage state;
and when the battery is in an abnormal damage state, sending an abnormal damage signal to a display terminal so as to display abnormal damage of the battery.
The invention provides a battery detection system, which comprises a sampling module and a control module which are sequentially connected, wherein the input end of the sampling module is connected with a battery in an automatic elevator rescue system; when the elevator automatic rescue system is powered on for the first time, the sampling module is used for collecting the open-circuit voltage of the battery and sending the open-circuit voltage to the control module; the control module is used for judging whether the open-circuit voltage meets a first preset fault voltage or not, and determining that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage; the control module is further configured to determine whether the open-circuit voltage meets a second preset fault voltage when the open-circuit voltage does not meet the first preset fault voltage, and determine that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage; and the control module is also used for sending a corresponding fault signal to the display terminal when the battery is in the unconnected state or the reversely connected state so as to display the fault type of the battery. Compared with the prior art that whether the open-circuit voltage of the battery is lower than the minimum chargeable voltage of the battery is only checked when the battery is detected, if the battery voltage is too low, the battery is considered to be damaged, the fault is reported, and the battery is not charged, the method cannot be used for real-time monitoring, the specification of the minimum chargeable voltage is not easy to determine, the risks of detection omission and overdetection exist, and unnecessary troubles are easy to be caused by false report. According to the invention, the battery is detected on line based on the charge control algorithm and the charge logic curve, whether the battery is not connected or damaged can be detected, the detection is accurate and reasonable, the management capability of the battery is improved, the workload of field maintenance personnel is reduced, and the technical problems that the existing ARD detection battery is effective only in the first power-on detection, cannot be monitored in real time and has risks of detection omission and overdetection are solved.
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 functional block diagram of an embodiment of a battery detection system according to the present invention;
FIG. 2 is a schematic diagram of a circuit configuration of a battery charging circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a charging circuit of a battery according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a charge control loop of a battery charging loop according to an embodiment of the present invention;
fig. 5 is a flowchart of a battery detection method according to a first 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
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
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 all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure 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 battery detection system.
Referring to fig. 1, in an embodiment of the present invention, the battery detection system includes a sampling module 100 and a control module 200 that are sequentially connected, and an input end of the sampling module 100 is connected with a battery in an automatic rescue system of an elevator; wherein,
when the elevator automatic rescue system is powered on for the first time, the sampling module 100 is configured to collect an open circuit voltage of the battery and send the open circuit voltage to the control module 200. In this embodiment, the battery detection system is located in an automatic elevator rescue system, i.e. an elevator ARD, which is a special rescue power supply device designed for an elevator application scenario. In the use process of the elevator, once the power supply system (external power network) fails (power failure and phase failure) the elevator can threaten the life and property safety of passengers trapped in the elevator. ARD puts into operation when above-mentioned condition takes place, breaks the connection line of elevator and external electric wire netting promptly, uses ARD self furnished with the battery to pass through inverter technology for elevator control system power supply simultaneously, cooperates elevator control system to slowly move the elevator car to the landing (or appointed landing) of nearby and opens the door, lets the passenger walk out the elevator rapidly. In this embodiment, when the ARD works in a charging state, the ARD is essentially a battery charging power supply, and its main circuit is formed by a flyback switching power supply, because in the charging process, the battery in the elevator automatic rescue system has a risk of disconnection from the elevator automatic rescue system due to disconnection of a hardware loop, and meanwhile, in the multi-round charging and discharging process, the battery has a risk of failure or damage, and the charging quality of the battery directly affects whether the elevator can effectively transport passengers to a safety level in an emergency state, and the problem of the battery end needs to be presented timely by the ARD.
It should be noted that, when the automatic rescue system of the elevator is powered on for the first time, the sampling module 100 collects the open circuit voltage of the battery and sends the open circuit voltage to the control module 200. Specifically, when the automatic rescue system of an elevator is powered on for the first time, the CPU in the control module 200 detects that the automatic rescue system of an elevator is just powered on, and can detect the open-circuit voltage of the battery through the sampling module 100, for example, an AD sampling circuit.
The control module 200 is configured to determine whether the open-circuit voltage meets a first preset fault voltage, and determine that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage. In this embodiment, when the automatic rescue system of the elevator is powered on for the first time, the CPU in the control module 200 detects that the automatic rescue system of the elevator is just powered on, the sampling module 100, for example, an AD sampling circuit, may detect the open-circuit voltage of the battery, and the control module 200 reads the voltage value of the open-circuit voltage, so as to determine the battery state according to the voltage value. In this embodiment, the first preset fault voltage is illustrated by taking 0 to 3V as an example, and the first preset fault voltage may be set according to practical situations, which is not limited in this embodiment. For example, if the open circuit voltage satisfies the first preset fault voltage, that is, the open circuit voltage of the battery is 0 to 3V, the battery is considered to be in an unconnected state.
The control module 200 is further configured to determine whether the open-circuit voltage meets a second preset fault voltage when the open-circuit voltage does not meet the first preset fault voltage, and determine that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage. In this embodiment, when the automatic rescue system of the elevator is powered on for the first time, the CPU in the control module 200 detects that the automatic rescue system of the elevator is just powered on, and can detect the open-circuit voltage of the battery through the sampling module 100, for example, an AD sampling circuit. In this embodiment, the second preset fault voltage is illustrated as being lower than 0V, and the second preset fault voltage may be set according to practical situations, which is not limited in this embodiment. For example, if the open circuit voltage satisfies the second preset fault voltage, i.e., the open circuit voltage of the battery is lower than 0V, the battery is considered to be in the reverse connection state.
The control module 200 is further configured to send a corresponding fault signal to a display terminal when the battery is in an unconnected state or a reverse connected state, so as to display a fault type of the battery. In the embodiment, when the open-circuit voltage is judged to meet the first preset fault voltage, namely, the open-circuit voltage of the battery is 0-3V, the battery is considered to be in an unconnected state, an unconnected fault signal is sent to the display terminal, the unconnected fault is reported, and meanwhile, the automatic rescue system of the elevator displays the unconnected fault; when the open-circuit voltage is judged to meet the second preset fault voltage, namely, the open-circuit voltage of the battery is lower than 0V, the battery is considered to be in a reverse connection state, a reverse connection fault signal is sent to the display terminal, a reverse connection fault is reported, and meanwhile, the elevator automatic rescue system displays the reverse connection fault.
The embodiment provides a battery detection system, which comprises a sampling module 100 and a control module 200 which are sequentially connected, wherein the input end of the sampling module 100 is connected with a battery in an automatic elevator rescue system; when the elevator automatic rescue system is powered on for the first time, the sampling module 100 is configured to collect an open-circuit voltage of the battery and send the open-circuit voltage to the control module 200; the control module 200 is configured to determine whether the open-circuit voltage meets a first preset fault voltage, and determine that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage; the control module 200 is further configured to determine whether the open-circuit voltage meets a second preset fault voltage when the open-circuit voltage does not meet the first preset fault voltage, and determine that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage; the control module 200 is further configured to send a corresponding fault signal to a display terminal when the battery is in an unconnected state or a reverse connected state, so as to display a fault type of the battery. Compared with the prior art that whether the open-circuit voltage of the battery is lower than the minimum chargeable voltage of the battery is only checked when the battery is detected, if the battery voltage is too low, the battery is considered to be damaged, the fault is reported, and the battery is not charged, the method cannot be used for real-time monitoring, the specification of the minimum chargeable voltage is not easy to determine, the risks of detection omission and overdetection exist, and unnecessary troubles are easy to be caused by false report. According to the invention, the battery is detected on line based on the charge control algorithm and the charge logic curve, whether the battery is not connected or damaged can be detected, the detection is accurate and reasonable, the management capability of the battery is improved, the workload of field maintenance personnel is reduced, and the technical problems that the existing ARD detection battery is effective only in the first power-on detection, cannot be monitored in real time and has risks of detection omission and overdetection are solved.
Further, the control module 200 is further configured to access the battery to the battery charging circuit 300 and charge the battery according to a preset charging logic when the open-circuit voltage does not satisfy the first preset fault voltage and the second preset fault voltage.
It should be noted that, when the open circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, the battery power-on detection is finished, and the control module 200 confirms that the battery has no unconnected or reverse-connected fault, and the battery detection system may further include: and the battery detection system closes the charging contactor, the battery is connected into the battery charging loop, and the preset charging logic starts to operate, and can follow the charging curve of the battery.
Further, the battery detection system further includes: a charging contactor connected to the battery, the battery charging circuit 300, and the control module 200, respectively; wherein,
the control module 200 is configured to close the charging contactor to connect the battery to the battery charging circuit 300 when the open circuit voltage does not satisfy the first preset fault voltage and the second preset fault voltage.
It is to be readily understood that the battery detection system may further include: and when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, the battery power-on detection is finished, the control module 200 confirms that the battery has no non-connection and reverse connection faults, the battery detection system closes the charging contactor, the battery is connected into a battery charging loop, and preset charging logic starts to operate, wherein the preset charging logic can follow a charging curve of the battery.
Further, referring to fig. 2, the battery charging circuit 300 includes a rectifying circuit 301 and a filtering output circuit 302 connected in sequence; the rectifying circuit 301 is connected to the grid input, the filtering output circuit 302 is connected to the battery, wherein,
the rectifying circuit 301 is configured to receive an ac voltage input from an input end of the power grid, rectify the ac voltage, and output a rectified dc voltage to the filtering output circuit 302;
the filtering output circuit 302 is configured to filter the rectified dc voltage and output a filtered dc voltage to the battery to charge the battery.
It should be noted that, the battery charging circuit 300 may include a rectifying circuit 301 and a filtering output circuit 302 connected in sequence, and the battery is connected to the battery charging circuit 300 to start to operate a preset charging logic, and the preset charging logic may follow a charging curve of the battery. The preset charging logic may be: acquiring a battery voltage, judging whether the battery voltage meets a first charging voltage, and charging the battery with a first constant current according to an activated charging strategy when the battery voltage meets the first charging voltage; when the battery voltage meets a second charging voltage, charging the battery with a second constant current according to a constant current charging strategy, wherein the second charging voltage is larger than the first charging voltage; when the battery voltage meets a third charging voltage, charging the battery with a third constant current according to a constant voltage charging strategy, wherein the third charging voltage is larger than the second charging voltage; and acquiring the current charging current of the battery, and charging the battery according to a step-down charging strategy when the current charging current is a preset current so as to enable the battery to be in a full state.
Specifically, the battery voltage is obtained, the first charging voltage may be set to be lower than 32V, when the battery voltage is lower than 32V, the active charging state is entered, the battery is charged with a first constant current, for example, a constant current of 0.12A according to the active charging strategy, the second charging voltage may be set to be 32V, when the battery voltage is waited for charging to 32V, the constant current charging state is entered, and the battery is charged with a second constant current at a current of 0.8A according to the constant current charging strategy until the battery reaches 45V. The third charging voltage may be set to 45V, when the battery voltage reaches 45V, the battery detection system considers that the battery is close to the full charge section and enters a constant voltage floating state, the charging current will slowly decrease from 0.8A at this time, when the charging current decreases to a preset current of 0.12A, the battery is considered to be fully charged, and then enters a step-down charging mode, the meaning of the step-down charging mode is to provide a voltage which is basically the same as the full electromotive force of the battery, and the long-term electric quantity maintaining requirement of the battery is met.
Further, with continued reference to fig. 2, the filter output circuit 302 includes a fuse FU, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a first diode D1, a second diode D2, a transformer T, and a first MOS transistor Q1; wherein,
The first end and the second end of the fuse FU are respectively connected with the output end of the rectifying circuit 301, the first end of the first capacitor C1 is connected with the first end of the fuse FU, the first end of the first resistor R1 is connected with the first end of the first capacitor C1, and the second end of the first resistor R1 is connected with the second end of the first capacitor C1;
the primary side first end of the transformer T is connected with the first end of the first resistor R1, the primary side second end of the transformer T is connected with the anode of the first diode D1, and the cathode of the first diode D1 is connected with the second end of the first resistor R1;
the first end of the secondary side of the transformer T is connected with the anode of the second diode D2, the cathode of the second diode D2 is connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is connected with the second end of the secondary side of the transformer T, the first end of the second capacitor C2 is connected with the positive electrode of the battery, the second end of the second capacitor C2 is connected with the first end of the second resistor R2, and the second end of the second resistor R2 is connected with the negative electrode of the battery
It should be appreciated that the different charge curve phases are calculated based on the battery voltage. The battery is connected to the battery charging circuit 300, and starts to run a preset charging logic, which can follow a charging curve of the battery, referring to fig. 3, fig. 3 is a schematic diagram of the charging curve of the battery charging circuit in the embodiment of the present invention, where each charging stage needs to mobilize the battery charging algorithm executed to drive the battery charging circuit 300 to run at the same time, so as to actually complete the charging control of the battery.
It is to be understood that, according to the characteristics of the circuit topology and the requirements of the charging curve, the battery charging circuit 300 may include an outer voltage loop and an inner current loop, and referring to fig. 4, fig. 4 is a schematic diagram of a charging control loop of the battery charging circuit according to an embodiment of the present invention.
Specifically, upon activation of the state of charge, the battery voltage in fig. 4 is given by u, depending on the state of charge ref 32V, u bat I is the actual battery voltage ref Given the current for the battery, I Limit For limiting the charge voltage, the given current limiting value is 0.12A, i when the charge state is activated bat And actually feeding back current for the battery, and obtaining final output charging output voltage through a current inner loop PI controller. The active state of charge is that the voltage does not reach 32V, the voltage loop is saturated to output, the charging current is output according to the given current limiting value, and the battery charging current can be output according to 0.12A.
Specifically, in the constant current state of charge, the battery voltage in fig. 4 is given by u ref 45V, I Limit For limiting the charging voltage, the given current limiting value is 0.8A in the constant current charging state. In the constant current charging state, as the voltage does not reach 45V, the voltage loop is saturated to output, the charging current is output according to a given current limiting value, and the battery charging current can be output according to 0.8A.
Specifically, in the constant voltage floating state, the battery voltage in fig. 4 is given by u ref 45V, I Limit For limiting the charging voltage, the given current limiting value is 0.8A in the constant voltage floating state. Since the battery voltage is close to 45V, the charging voltage loop output does not reach the charging limit value, and as the battery voltage gradually increases, the charging current set point gradually decreases, slowly approaching 0.12A.
Specifically, at the time of the step-down charge state, the battery voltage u ref 44V, I Limit The charge voltage is limited to 0.12A. Because the battery has certain internal resistance, the given voltage of 44V is close to the internal electromotive force of the battery, and the given current value output by the charging voltage loop is 0 or less than or equal to 0.12A, the battery can be stored in a full state for a long time. When the battery enters the step-down charging mode, the output of the charging end of the battery is 44V, and the charging current of the battery is connectedNear 0. At this time, if the battery charge output is adjusted to 30V for 10 seconds, or the PWM output is stopped, the detected already-charged battery voltage should be maintained at a certain voltage and should not be reduced to below 32V. At this time, if the charged contactor is opened, the battery voltage is considered to be disconnected if it falls to 0 to 3V, if it falls to 3 to 32V, it is considered that the battery is abnormally damaged, and if it does not fall to 0 to 32V, it is considered that the battery is normal. It should be noted that, in the non-buck charging state, the online power-off detection may not be required.
An embodiment of the present invention provides a battery detection method based on the battery detection system described above, and referring to fig. 5, fig. 5 is a schematic flow chart of a first embodiment of a battery detection method according to the present invention.
In this embodiment, the battery detection method includes the following steps:
step S10: when the elevator automatic rescue system is powered on for the first time, the sampling module collects the open-circuit voltage of the battery and sends the open-circuit voltage to the control module.
The elevator automatic rescue system is an elevator ARD, and is a special rescue power supply device designed for an elevator application scene. In the use process of the elevator, once the power supply system (external power network) fails (power failure and phase failure) the elevator can threaten the life and property safety of passengers trapped in the elevator. ARD puts into operation when above-mentioned condition takes place, breaks the connection line of elevator and external electric wire netting promptly, uses ARD self furnished with the battery to pass through inverter technology for elevator control system power supply simultaneously, cooperates elevator control system to slowly move the elevator car to the landing (or appointed landing) of nearby and opens the door, lets the passenger walk out the elevator rapidly. In this embodiment, when the ARD works in a charging state, the ARD is essentially a battery charging power supply, and its main circuit is formed by a flyback switching power supply, because in the charging process, the battery in the elevator automatic rescue system has a risk of disconnection from the elevator automatic rescue system due to disconnection of a hardware loop, and meanwhile, in the multi-round charging and discharging process, the battery has a risk of failure or damage, and the charging quality of the battery directly affects whether the elevator can effectively transport passengers to a safety level in an emergency state, and the problem of the battery end needs to be presented timely by the ARD.
It is easy to understand that this battery detecting system is arranged in the automatic rescue system of elevator, and battery detecting system includes sampling module and the control module that connects gradually, sampling module's input is connected with the battery in the automatic rescue system of elevator, when the automatic rescue system of elevator is first powered on, sampling module gathers the open circuit voltage of battery, and will the open circuit voltage is sent to control module. Specifically, when the automatic rescue system of the elevator is powered on for the first time, the CPU in the control module detects that the automatic rescue system of the elevator is just powered on, and can detect the open-circuit voltage of the battery through the sampling module such as an AD sampling circuit.
Step S20: the control module judges whether the open-circuit voltage meets a first preset fault voltage, and determines that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage.
It should be understood that when the automatic rescue system of the elevator is powered on for the first time, the CPU in the control module detects that the automatic rescue system of the elevator is just powered on, and can detect the open-circuit voltage of the battery through the sampling module, for example, the AD sampling circuit, and the control module reads the voltage value of the open-circuit voltage, so as to determine the battery state according to the voltage value. In this embodiment, the first preset fault voltage is illustrated by taking 0 to 3V as an example, and the first preset fault voltage may be set according to practical situations, which is not limited in this embodiment. For example, if the open circuit voltage satisfies the first preset fault voltage, that is, the open circuit voltage of the battery is 0 to 3V, the battery is considered to be in an unconnected state.
Step S30: the control module judges whether the open-circuit voltage meets a second preset fault voltage or not when the open-circuit voltage does not meet the first preset fault voltage, and determines that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage.
When the automatic rescue system of the elevator is powered on for the first time, the CPU in the control module detects that the automatic rescue system of the elevator is powered on just, and the open-circuit voltage of the battery can be detected through the sampling module, such as an AD sampling circuit. In this embodiment, the second preset fault voltage is illustrated as being lower than 0V, and the second preset fault voltage may be set according to practical situations, which is not limited in this embodiment. For example, if the open circuit voltage satisfies the second preset fault voltage, i.e., the open circuit voltage of the battery is lower than 0V, the battery is considered to be in the reverse connection state.
It is easy to understand that the control module inserts the battery into a battery charging loop when the open-circuit voltage does not satisfy the first preset fault voltage and the second preset fault voltage, and charges the battery according to a preset charging logic. Specifically, the battery detection system may further include: and when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, the battery power-on detection is finished, the control module confirms that the battery has no unconnected and reverse connection faults, the battery detection system closes the charging contactor, the battery is connected into a battery charging loop, and a preset charging logic starts to run, wherein the preset charging logic can follow a charging curve of the battery.
Specifically, the process of charging the battery according to the preset charging logic may include: acquiring a battery voltage, judging whether the battery voltage meets a first charging voltage, and charging the battery with a first constant current according to an activated charging strategy when the battery voltage meets the first charging voltage; when the battery voltage meets a second charging voltage, charging the battery with a second constant current according to a constant current charging strategy, wherein the second charging voltage is larger than the first charging voltage; when the battery voltage meets a third charging voltage, charging the battery with a third constant current according to a constant voltage charging strategy, wherein the third charging voltage is larger than the second charging voltage; and acquiring the current charging current of the battery, and charging the battery according to a step-down charging strategy when the current charging current is a preset current so as to enable the battery to be in a full state.
It should be appreciated that the battery voltage is obtained, the first charging voltage may be set to be lower than 32V, when the battery voltage is lower than 32V, the active charging state is entered, the battery is charged with a first constant current, for example, a constant current of 0.12A according to the active charging strategy, the second charging voltage may be set to be 32V, when the battery voltage is waiting to be charged to 32V, the constant current charging state is entered, the battery is charged with a second constant current of 0.8A according to the constant current charging strategy, until the battery reaches 45V. The third charging voltage may be set to 45V, when the battery voltage reaches 45V, the battery detection system considers that the battery is close to the full charge section and enters a constant voltage floating state, the charging current will slowly decrease from 0.8A at this time, when the charging current decreases to a preset current of 0.12A, the battery is considered to be fully charged, and then enters a step-down charging mode, the meaning of the step-down charging mode is to provide a voltage which is basically the same as the full electromotive force of the battery, and the long-term electric quantity maintaining requirement of the battery is met.
It is easy to understand that different charge curve stages are calculated according to different battery voltages. The battery is connected to the battery charging circuit 300, and starts to run a preset charging logic, which can follow a charging curve of the battery, referring to fig. 3, fig. 3 is a schematic diagram of the charging curve of the battery charging circuit in the embodiment of the present invention, where each charging stage needs to mobilize the battery charging algorithm executed to drive the battery charging circuit 300 to run at the same time, so as to actually complete the charging control of the battery.
It should be noted that, according to the characteristics of the circuit topology and the requirements of the charging curve, the battery charging circuit 300 may include an outer voltage loop and an inner current loop, and referring to fig. 4, fig. 4 is a schematic diagram of a charging control loop of the battery charging circuit according to an embodiment of the present invention.
Specifically, upon activation of the state of charge, the battery voltage in fig. 4 is given by u, depending on the state of charge ref 32V, u bat I is the actual battery voltage ref Given the current for the battery, I Limit For limiting the charging voltage, the given current limiting value is 0.12A when the charging state is activated,i bat and actually feeding back current for the battery, and obtaining final output charging output voltage through a current inner loop PI controller. The active state of charge is that the voltage does not reach 32V, the voltage loop is saturated to output, the charging current is output according to the given current limiting value, and the battery charging current can be output according to 0.12A.
Specifically, in the constant current state of charge, the battery voltage in fig. 4 is given by u ref 45V, I Limit For limiting the charging voltage, the given current limiting value is 0.8A in the constant current charging state. In the constant current charging state, as the voltage does not reach 45V, the voltage loop is saturated to output, the charging current is output according to a given current limiting value, and the battery charging current can be output according to 0.8A.
Specifically, in the constant voltage floating state, the battery voltage in fig. 4 is given by u ref 45V, I Limit For limiting the charging voltage, the given current limiting value is 0.8A in the constant voltage floating state. Since the battery voltage is close to 45V, the charging voltage loop output does not reach the charging limit value, and as the battery voltage gradually increases, the charging current set point gradually decreases, slowly approaching 0.12A.
It should be noted that, after the battery is charged according to the step-down charging strategy so that the battery is in a full state, the method further includes: the control module outputs and adjusts charging voltage to the battery, obtains current battery voltage and judges whether the current battery voltage meets the line break fault voltage; when the current battery voltage meets the disconnection fault voltage, determining that the battery is in a disconnection state; and when the battery is in a disconnection state, sending a disconnection fault signal to a display terminal so as to display the disconnection fault of the battery. When the current battery voltage does not meet the broken line fault voltage, judging whether the current battery voltage meets an abnormal damage voltage, wherein the abnormal damage voltage is larger than the broken line fault voltage; when the current battery voltage meets the abnormal damage voltage, determining that the battery is in an abnormal damage state; and when the battery is in an abnormal damage state, sending an abnormal damage signal to a display terminal so as to display abnormal damage of the battery.
Specifically, at the time of the step-down charge state, the battery voltage u ref 44V, I Limit The charge voltage is limited to 0.12A. Because the battery has certain internal resistance, the given voltage of 44V is close to the internal electromotive force of the battery, and the given current value output by the charging voltage loop is 0 or less than or equal to 0.12A, the battery can be stored in a full state for a long time. When the battery enters buck charging, the battery charging terminal output should be 44V and the battery charging current is close to 0. At this time, if the battery charge output is adjusted to 30V for 10 seconds, or the PWM output is stopped, the detected already-charged battery voltage should be maintained at a certain voltage and should not be reduced to below 32V. At this time, if the charged contactor is opened, the battery voltage is considered to be disconnected if it falls to 0 to 3V, if it falls to 3 to 32V, it is considered that the battery is abnormally damaged, and if it does not fall to 0 to 32V, it is considered that the battery is normal. It should be noted that, in the non-buck charging state, the online power-off detection may not be required.
Step S40: and when the battery is in an unconnected state or a reverse connected state, the control module sends a corresponding fault signal to the display terminal so as to display the fault type of the battery.
It is easy to understand that when the open-circuit voltage is judged to meet the first preset fault voltage, namely, the open-circuit voltage of the battery is 0-3V, the battery is considered to be in an unconnected state, an unconnected fault signal is sent to the display terminal, an unconnected fault is reported, and meanwhile, the automatic rescue system of the elevator displays the unconnected fault; when the open-circuit voltage is judged to meet the second preset fault voltage, namely, the open-circuit voltage of the battery is lower than 0V, the battery is considered to be in a reverse connection state, a reverse connection fault signal is sent to the display terminal, a reverse connection fault is reported, and meanwhile, the elevator automatic rescue system displays the reverse connection fault.
According to the embodiment, when the elevator automatic rescue system is powered on for the first time, the sampling module collects the open-circuit voltage of the battery and sends the open-circuit voltage to the control module; the control module judges whether the open-circuit voltage meets a first preset fault voltage or not, and determines that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage; the control module judges whether the open-circuit voltage meets a second preset fault voltage or not when the open-circuit voltage does not meet the first preset fault voltage, and determines that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage; and when the battery is in an unconnected state or a reverse connected state, the control module sends a corresponding fault signal to the display terminal so as to display the fault type of the battery. Compared with the prior art that whether the open-circuit voltage of the battery is lower than the minimum chargeable voltage of the battery is only checked when the battery is detected, if the battery voltage is too low, the battery is considered to be damaged, the fault is reported, and the battery is not charged, the method cannot be used for real-time monitoring, the specification of the minimum chargeable voltage is not easy to determine, the risks of detection omission and overdetection exist, and unnecessary troubles are easy to be caused by false report. According to the invention, the battery is detected on line based on the charge control algorithm and the charge logic curve, whether the battery is not connected or damaged can be detected, the detection is accurate and reasonable, the management capability of the battery is improved, the workload of field maintenance personnel is reduced, and the technical problems that the existing ARD detection battery is effective only in the first power-on detection, cannot be monitored in real time and has risks of detection omission and overdetection are solved.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may be referred to the battery detection system provided in any embodiment of the present invention, and will not be described herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (7)
1. The battery detection system is characterized by comprising a sampling module and a control module which are connected in sequence, wherein the input end of the sampling module is connected with a battery in an automatic elevator rescue system; wherein,
when the elevator automatic rescue system is powered on for the first time, the sampling module is used for collecting the open-circuit voltage of the battery and sending the open-circuit voltage to the control module;
the control module is used for judging whether the open-circuit voltage meets a first preset fault voltage or not, and determining that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage;
the control module is further configured to determine whether the open-circuit voltage meets a second preset fault voltage when the open-circuit voltage does not meet the first preset fault voltage, and determine that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage;
the control module is further used for sending a corresponding fault signal to the display terminal when the battery is in an unconnected state or a reverse connected state so as to display the fault type of the battery;
The control module is further configured to access the battery to a battery charging circuit when the open-circuit voltage does not satisfy the first preset fault voltage and the second preset fault voltage, and charge the battery according to a preset charging logic, where the battery charging circuit includes: a voltage outer loop and a current inner loop;
the preset charging logic includes: acquiring a battery voltage, judging whether the battery voltage meets a first charging voltage, and charging the battery with a first constant current according to an activated charging strategy when the battery voltage meets the first charging voltage; when the battery voltage meets a second charging voltage, charging the battery with a second constant current according to a constant current charging strategy, wherein the second charging voltage is larger than the first charging voltage; when the battery voltage meets a third charging voltage, charging the battery with a third constant current according to a constant voltage charging strategy, wherein the third charging voltage is larger than the second charging voltage; and acquiring the current charging current of the battery, and charging the battery according to a step-down charging strategy when the current charging current is a preset current so as to enable the battery to be in a full state.
2. The battery detection system of claim 1, wherein the battery detection system further comprises: the charging contactor is respectively connected with the battery, the battery charging loop and the control module; wherein,
and the control module is used for closing the charging contactor when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage so as to connect the battery into the battery charging loop.
3. The battery detection system of claim 2, wherein the battery charging circuit comprises a rectifying circuit and a filtering output circuit connected in sequence; the rectifying circuit is connected with the input end of the power grid, the filtering output circuit is connected with the battery, wherein,
the rectification circuit is used for receiving the alternating voltage input by the input end of the power grid, rectifying the alternating voltage and outputting a rectified direct voltage to the filtering output circuit;
the filtering output circuit is used for filtering the rectified direct current voltage and outputting the filtered direct current voltage to the battery so as to charge the battery.
4. The battery detection system of claim 3, wherein the filter output circuit comprises a fuse, a first capacitor, a second capacitor, a first resistor, a second resistor, a first diode, a second diode, a transformer, and a first MOS transistor; wherein,
The first end and the second end of the fuse are respectively connected with the output end of the rectifying circuit, the first end of the first capacitor is connected with the first end of the fuse, the first end of the first resistor is connected with the first end of the first capacitor, and the second end of the first resistor is connected with the second end of the first capacitor;
the primary side first end of the transformer is connected with the first end of the first resistor, the primary side second end of the transformer is connected with the anode of the first diode, and the cathode of the first diode is connected with the second end of the first resistor;
the first end of the secondary side of the transformer is connected with the anode of the second diode, the cathode of the second diode is connected with the first end of the second capacitor, the second end of the second capacitor is connected with the second end of the secondary side of the transformer, the first end of the second capacitor is connected with the anode of the battery, the second end of the second capacitor is connected with the first end of the second resistor, and the second end of the second resistor is connected with the cathode of the battery.
5. A battery detection method based on the battery detection system according to any one of claims 1 to 4, wherein the battery detection system comprises a sampling module and a control module connected in sequence, the battery detection method comprising the steps of:
When the elevator automatic rescue system is powered on for the first time, the sampling module collects the open-circuit voltage of the battery and sends the open-circuit voltage to the control module;
the control module judges whether the open-circuit voltage meets a first preset fault voltage or not, and determines that the battery is in an unconnected state when the open-circuit voltage meets the first preset fault voltage;
the control module judges whether the open-circuit voltage meets a second preset fault voltage or not when the open-circuit voltage does not meet the first preset fault voltage, and determines that the battery is in a reverse connection state when the open-circuit voltage meets the second preset fault voltage; wherein the first preset fault voltage is greater than the second preset fault voltage;
the control module sends a corresponding fault signal to a display terminal when the battery is in an unconnected state or a reverse connected state so as to display the fault type of the battery;
the control module further includes, after the step of determining whether the open-circuit voltage satisfies a second preset fault voltage when the open-circuit voltage does not satisfy the first preset fault voltage:
the control module is used for connecting the battery into a battery charging loop when the open-circuit voltage does not meet the first preset fault voltage and the second preset fault voltage, and charging the battery according to preset charging logic;
The step of charging the battery according to a preset charging logic includes:
acquiring a battery voltage, judging whether the battery voltage meets a first charging voltage, and charging the battery with a first constant current according to an activated charging strategy when the battery voltage meets the first charging voltage;
when the battery voltage meets a second charging voltage, charging the battery with a second constant current according to a constant current charging strategy, wherein the second charging voltage is larger than the first charging voltage;
when the battery voltage meets a third charging voltage, charging the battery with a third constant current according to a constant voltage charging strategy, wherein the third charging voltage is larger than the second charging voltage;
and acquiring the current charging current of the battery, and charging the battery according to a step-down charging strategy when the current charging current is a preset current so as to enable the battery to be in a full state.
6. The battery detection method of claim 5, wherein after the step of charging the battery according to a step-down charging strategy to place the battery in a full state, further comprising:
The control module outputs and adjusts charging voltage to the battery, obtains current battery voltage and judges whether the current battery voltage meets the line break fault voltage;
when the current battery voltage meets the disconnection fault voltage, determining that the battery is in a disconnection state;
and when the battery is in a disconnection state, sending a disconnection fault signal to a display terminal so as to display the disconnection fault of the battery.
7. The battery detection method according to claim 6, wherein the step of the control module outputting an adjusted charging voltage to the battery, obtaining a current battery voltage, and determining whether the current battery voltage satisfies a disconnection fault voltage further comprises:
when the current battery voltage does not meet the broken line fault voltage, judging whether the current battery voltage meets an abnormal damage voltage, wherein the abnormal damage voltage is larger than the broken line fault voltage;
when the current battery voltage meets the abnormal damage voltage, determining that the battery is in an abnormal damage state;
and when the battery is in an abnormal damage state, sending an abnormal damage signal to a display terminal so as to display abnormal damage of the battery.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0598105A1 (en) * | 1992-06-10 | 1994-05-25 | Digital Equipment Corp | Fault detector for a plurality of batteries in battery backup systems. |
| KR20020047546A (en) * | 2000-12-13 | 2002-06-22 | 이계안 | Battery charge control method of electric motor vehicle |
| CN203522531U (en) * | 2013-09-22 | 2014-04-02 | 山东贞明光电科技有限公司 | Switching power supply based on primary side feedback control power switch chip |
| CN103997108A (en) * | 2014-04-18 | 2014-08-20 | 河南速达电动汽车科技有限公司 | Electric automobile lead acid battery charger |
| CN205566708U (en) * | 2016-01-29 | 2016-09-07 | 深圳市诚丰浩电子有限公司 | Emergent integrative lamp of LED illumination and control system |
| CN208623560U (en) * | 2018-08-23 | 2019-03-19 | 杨运海 | A kind of high-performance electric source circuit |
| CN111542155A (en) * | 2020-04-24 | 2020-08-14 | 武汉理工大学 | Household LED lighting circuit |
| CN111817328A (en) * | 2020-07-15 | 2020-10-23 | 佛山维可特科技有限公司 | Energy storage control circuit, working method of energy storage control circuit, computer device and computer readable storage medium |
-
2021
- 2021-04-21 CN CN202110433411.XA patent/CN113219356B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0598105A1 (en) * | 1992-06-10 | 1994-05-25 | Digital Equipment Corp | Fault detector for a plurality of batteries in battery backup systems. |
| KR20020047546A (en) * | 2000-12-13 | 2002-06-22 | 이계안 | Battery charge control method of electric motor vehicle |
| CN203522531U (en) * | 2013-09-22 | 2014-04-02 | 山东贞明光电科技有限公司 | Switching power supply based on primary side feedback control power switch chip |
| CN103997108A (en) * | 2014-04-18 | 2014-08-20 | 河南速达电动汽车科技有限公司 | Electric automobile lead acid battery charger |
| CN205566708U (en) * | 2016-01-29 | 2016-09-07 | 深圳市诚丰浩电子有限公司 | Emergent integrative lamp of LED illumination and control system |
| CN208623560U (en) * | 2018-08-23 | 2019-03-19 | 杨运海 | A kind of high-performance electric source circuit |
| CN111542155A (en) * | 2020-04-24 | 2020-08-14 | 武汉理工大学 | Household LED lighting circuit |
| CN111817328A (en) * | 2020-07-15 | 2020-10-23 | 佛山维可特科技有限公司 | Energy storage control circuit, working method of energy storage control circuit, computer device and computer readable storage medium |
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