CN110957540A - Management system and method for identifying and processing MOS short circuit - Google Patents
Management system and method for identifying and processing MOS short circuit Download PDFInfo
- Publication number
- CN110957540A CN110957540A CN201811120968.2A CN201811120968A CN110957540A CN 110957540 A CN110957540 A CN 110957540A CN 201811120968 A CN201811120968 A CN 201811120968A CN 110957540 A CN110957540 A CN 110957540A
- Authority
- CN
- China
- Prior art keywords
- module
- mos
- data
- management system
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- 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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2607—Circuits therefor
- G01R31/2637—Circuits therefor for testing other individual devices
- G01R31/2639—Circuits therefor for testing other individual devices for testing field-effect devices, e.g. of MOS-capacitors
-
- 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
- H01M10/4285—Testing apparatus
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Protection Of Static Devices (AREA)
Abstract
A management system for identifying and processing MOS short circuit comprises an external circuit, wherein the external circuit is connected with the management system, the management system comprises an MOS, a battery pack module, a control system module, a detection module and a safety module, the control system module is connected with the safety module, the detection module and the MOS, the detection module is connected with the MOS, and the safety module, the detection module and the MOS are connected with the battery pack module; the invention also provides a method for identifying and processing the MOS short circuit, which can effectively identify and process the MOS short circuit, ensure the use safety of products and improve the accuracy of MOS short circuit detection.
Description
Technical Field
The invention relates to the field of MOS management systems, in particular to a management system and a method for identifying and processing MOS short circuits.
Background
At present, a power MOS tube is frequently used in a battery pack of a household appliance, in actual use, a short circuit phenomenon may occur between a drain D and a source S due to damage of the discharge MOS tube caused by various reasons, external output becomes uncontrollable after MOS short circuit, and great potential safety hazard exists.
Many products on the market that involve MOS have the following problems: 1. no function of recognizing and processing MOS short circuit; 2. the function of identifying and processing MOS short circuit is provided, but the effective processing circuit and corresponding mode after identification processing are not provided. When the MOS is short-circuited, the product cannot be used normally, and a functional abnormality occurs, and under the condition of a large actual use power, more serious consequences such as scalding, peculiar smell, smoking, even fire and the like may occur.
Disclosure of Invention
In order to solve the above problems, the present invention provides a management system and method for identifying and processing a MOS short circuit, which overcome the problems in the prior art that the MOS short circuit cannot be effectively identified and processed, and cannot be effectively processed after the MOS short circuit, which results in dangerous use of the product.
A management system for identifying and processing MOS short circuit comprises an external circuit, wherein the external circuit is connected with the management system, the management system comprises an MOS, a battery pack module, a control system module, a detection module and a safety module, the control system module is connected with the safety module, the detection module and the MOS, the detection module is connected with the MOS, and the safety module, the detection module and the MOS are connected with the battery pack module;
the battery pack module provides power for the management system;
the detection module detects the voltage and/or current data of the MOS in real time;
the control system module drives the MOS to work, controls the detection module to work, receives data uploaded by the detection module and feeds abnormal conditions back to the safety module and the external circuit;
the safety module controls the on-off of the management system and an external circuit.
Preferably, the detection module comprises a current detection module and/or a voltage detection module.
Preferably, the voltage detection module comprises a voltage detection unit or a voltage detection unit, and a voltage conversion module connected with the voltage detection unit, wherein the voltage detection unit is connected with the MOS; the current detection module comprises a current detection unit or a current detection unit and a current conversion module connected with the current detection unit, and the current detection unit is connected with the MOS.
Preferably, the control system module comprises a warning module, a logic unit and a control module, the warning module is connected with the logic unit, the logic unit is connected with the control module, the logic unit is connected with the safety module and the detection module, and the control module is connected with the MOS.
Preferably, the safety module comprises a circuit composed of any one or more of a fuse, a relay and two MOS tubes.
A method of identifying a processing MOS short, comprising the steps of:
(1) a control module in the control system module drives the MOS, a voltage detection unit and/or a current detection unit in the detection module collects data of the MOS in real time and directly sends the collected data to a logic unit, or transmits the data to a current conversion module/a voltage conversion module, and the current conversion module/the voltage conversion module converts the data into an electric signal and then transmits the electric signal to the logic unit;
(2) the logic unit analyzes and judges the data or the electric signals, and when the data or the electric signals are abnormal, a processing strategy is adopted for processing.
Preferably, the processing strategy includes any one or two of the following modes:
(1) the logic unit feeds back the abnormal condition to the external circuit, and the warning module informs a user of the abnormal condition and reminds the external circuit to stop working.
(2) The logic unit feeds back the abnormal condition to the safety module, and the safety module controls the management system to cut off the connection with the external circuit.
Preferably, the data or the electrical signal is abnormal, which means that the control system module receives the data or the electrical signal of the detection module, compares the data or the electrical signal with a preset value range, and determines that the data or the electrical signal is abnormal if the received data or the electrical signal does not conform to the preset value range.
The invention provides a management system and a management method for identifying and processing MOS short circuit, which can effectively identify and process the MOS short circuit and adopt a processing strategy to process the MOS short circuit condition, thereby ensuring the use safety of products; the control system module can only feed back signals to an external circuit, can also select to only start the protection module to cut off the connection between the management system and the external circuit, and can also implement two modes simultaneously, thereby avoiding MOS short circuit from being processed in time due to faults of the safety module, the warning module or the circuit and ensuring the safety of products; the detection module is a voltage detection unit and/or a current detection unit, and the accuracy of MOS short circuit detection is improved.
Drawings
FIG. 1 is a schematic diagram of a management system for identifying and processing MOS short circuits according to the present invention;
FIG. 2 is a schematic diagram of embodiment 1 of a security module of the present invention;
FIG. 3 is a schematic diagram of embodiment 2 of the security module of the present invention;
fig. 4 is a schematic diagram of embodiment 3 of the security module of the present invention.
Detailed Description
The invention is further elucidated with reference to the figures and embodiments.
Referring to fig. 1, a management system for identifying and processing MOS short circuits includes an external circuit, the external circuit is connected to the management system, the management system includes an MOS, a battery module, a control system module, a detection module and a safety module, the control system module is connected to the safety module, the detection module and the MOS, the detection module is connected to the MOS, and the safety module, the detection module and the MOS are connected to the battery module; the battery pack module provides power for the management system; the detection module detects voltage and/or current data of the MOS in real time; the control system module drives the MOS to work, controls the detection module to work, receives data uploaded by the detection module and feeds abnormal conditions back to the safety module and the external circuit; the safety module controls the on-off of the management system and an external circuit.
The detection module comprises a current detection module and/or a voltage detection module, the voltage detection module comprises a voltage detection unit or a voltage detection unit and a voltage conversion module connected with the voltage detection unit, and the voltage detection unit is connected with the MOS; the current detection module comprises a current detection unit or a current detection unit and a current conversion module connected with the current detection unit, and the current detection unit is connected with the MOS.
The control system module comprises a warning module, a logic unit and a control module, wherein the warning module is connected with the logic unit, the logic unit is connected with the control module, the logic unit is connected with the safety module and the detection module, and the control module is connected with the MOS.
Referring to FIGS. 2-4, example 1: the safety module comprises a circuit consisting of fuses; example 2: the safety module comprises a circuit consisting of relays; example 3: the safety module comprises a circuit formed by connecting two MOS tubes in parallel.
A method of identifying a processing MOS short, comprising the steps of:
(1) a control module in the control system module drives the MOS, a voltage detection unit and/or a current detection unit in the detection module collects data of the MOS in real time and directly sends the collected data to a logic unit, or transmits the data to a current conversion module/a voltage conversion module, and the current conversion module/the voltage conversion module converts the data into an electric signal and then transmits the electric signal to the logic unit;
(2) and the logic unit analyzes and judges the data or the electric signals, when the data or the electric signals are abnormal, namely the control system module receives the data or the electric signals of the detection module, compares the data or the electric signals with a preset value range, and judges the abnormal condition if the received data or the electric signals are not in the preset value range. And processing by adopting a processing strategy.
The processing strategy comprises any one or two of the following modes:
(1) the logic unit feeds back the abnormal condition to the external circuit, and the warning module informs a user of the abnormal condition and reminds the external circuit to stop working. (2) The logic unit feeds back the abnormal condition to the safety module, and the safety module controls the management system to cut off the connection with the external circuit.
The control system module can only feed back signals to an external circuit, can also select to only start the protection module to cut off the connection between the management system and the external circuit, and can also implement two modes simultaneously, thereby avoiding MOS short circuit from being processed in time due to faults of the safety module, the warning module or a circuit and ensuring the safety of products.
The control system module drives the MOS during normal work, and the voltage on the MOS grid or the drive circuit connected with the grid is sent out through the control system module and belongs to controllable known voltage. When the MOS is in a short-circuit damage condition, the resistance value between the MOS gate and the source GS is rapidly reduced and usually does not exceed 1K omega, while the resistance value between the normal MOS gate and the source GS is at least above the level of M omega, the detection module detects that the voltage or the current of the grid or the drive circuit on the grid is obviously abnormal, and accordingly the MOS is judged to be in a short-circuit condition.
The battery pack module can be formed by connecting a single battery or a plurality of batteries in series and parallel, and the battery core type is not limited to power supply batteries such as lithium ion batteries, nickel-hydrogen batteries and the like; the detection module is not limited to detecting identification or conversion of digital signals; the external circuit is a load circuit, such as a relevant circuit in the dust collector, but not limited to a discharge control module, a power device or a charger; the port one of the safety module is not limited to only connecting an external circuit for discharging or charging; the second port of the external circuit is not limited to be connected with the MOS, and can be connected with the battery pack module through other electrical connection; the signal port is not limited to single line or multiple lines, and the mode is not limited to communication or level change; all electronic devices are not limited to different process types of patches or inserts, and are not limited to different packaging modes.
The invention improves the detection and protection processing of the MOS short circuit, identifies the MOS short circuit, transmits information to the control system module, simultaneously can disconnect the input or output of the external circuit by the safety module, simultaneously can control the signal end of the system module to realize the abnormal signal notification of the external circuit, and the warning module carries out warning indication on a user to complete the detection of the MOS short circuit, the warning after the short circuit and the control of the safety module, thereby reducing the product risk and improving the safety.
The invention provides a management system and a management method for identifying and processing MOS short circuit, which can effectively identify and process the MOS short circuit and adopt a processing strategy to process the MOS short circuit condition, thereby ensuring the use safety of products; the detection module is a voltage detection unit and/or a current detection unit, and the accuracy of MOS short circuit detection is improved.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions.
In addition, each functional unit in the present invention may be integrated into one chip unit, or each unit may exist alone physically, or two or more units are integrated into one unit, and the integrated unit may be implemented in a form of hardware, or may be implemented in a form of software functional unit.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A management system for recognizing and processing MOS short circuits, comprising an external circuit, characterized in that: the external circuit is connected with a management system, the management system comprises an MOS, a battery pack module, a control system module, a detection module and a safety module, the control system module is connected with the safety module, the detection module and the MOS, the detection module is connected with the MOS, and the safety module, the detection module and the MOS are connected with the battery pack module;
the battery pack module provides power for the management system;
the detection module detects the voltage and/or current data of the MOS in real time;
the control system module drives the MOS to work, controls the detection module to work, receives data uploaded by the detection module and feeds abnormal conditions back to the safety module and the external circuit;
the safety module controls the on-off of the management system and an external circuit.
2. A management system for recognizing and processing MOS short circuit according to claim 1, wherein: the detection module comprises a current detection module and/or a voltage detection module.
3. A management system for recognizing and processing MOS short circuit according to claim 2, wherein: the voltage detection module comprises a voltage detection unit or a voltage detection unit and a voltage conversion module connected with the voltage detection unit, and the voltage detection unit is connected with the MOS; the current detection module comprises a current detection unit or a current detection unit and a current conversion module connected with the current detection unit, and the current detection unit is connected with the MOS.
4. A management system for recognizing and processing MOS short circuits according to claim 1 or 2, characterized in that: the control system module comprises a warning module, a logic unit and a control module, wherein the warning module is connected with the logic unit, the logic unit is connected with the control module, the logic unit is connected with the safety module and the detection module, and the control module is connected with the MOS.
5. A management system for recognizing and processing MOS short circuit according to claim 1, wherein: the safety module comprises a circuit consisting of any one or more of a fuse, a relay and two MOS tubes.
6. A method of identifying and handling MOS shorts, characterized by: the method comprises the following steps:
a control module in the control system module drives the MOS, a voltage detection unit and/or a current detection unit in the detection module collects data of the MOS in real time and directly sends the collected data to a logic unit, or transmits the data to a current conversion module/a voltage conversion module, and the current conversion module/the voltage conversion module converts the data into an electric signal and then transmits the electric signal to the logic unit;
the logic unit analyzes and judges the data or the electric signals, and when the data or the electric signals are abnormal, a processing strategy is adopted for processing.
7. The method for identifying and processing the MOS short circuit as claimed in claim 6, wherein: the processing strategy comprises any one or two of the following modes:
(1) the logic unit feeds back the abnormal condition to the external circuit, and the warning module informs a user of the abnormal condition and reminds the external circuit to stop working;
(2) the logic unit feeds back the abnormal condition to the safety module, and the safety module controls the management system to cut off the connection with the external circuit.
8. A method of identification processing of MOS shorts according to claim 6 or 7, characterized in that: the data or the electric signals are abnormal, that is, the control system module receives the data or the electric signals of the detection module, compares the data or the electric signals with a preset value range, and judges that the data or the electric signals are abnormal if the received data or the received electric signals do not conform to the preset value range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120968.2A CN110957540A (en) | 2018-09-26 | 2018-09-26 | Management system and method for identifying and processing MOS short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811120968.2A CN110957540A (en) | 2018-09-26 | 2018-09-26 | Management system and method for identifying and processing MOS short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110957540A true CN110957540A (en) | 2020-04-03 |
Family
ID=69962416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811120968.2A Pending CN110957540A (en) | 2018-09-26 | 2018-09-26 | Management system and method for identifying and processing MOS short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957540A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070160900A1 (en) * | 2005-12-22 | 2007-07-12 | Sagem Defense Securite | Battery, electrical equipment, and a powering method implementing means for short-circuiting the battery |
| CN202586298U (en) * | 2012-05-16 | 2012-12-05 | 万向电动汽车有限公司 | Power battery thermal management switching MOS tube short-circuit protection circuit |
| CN104377753A (en) * | 2014-09-28 | 2015-02-25 | 浙江超威创元实业有限公司 | Battery management system with field-effect tube breakdown detection function |
-
2018
- 2018-09-26 CN CN201811120968.2A patent/CN110957540A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070160900A1 (en) * | 2005-12-22 | 2007-07-12 | Sagem Defense Securite | Battery, electrical equipment, and a powering method implementing means for short-circuiting the battery |
| CN202586298U (en) * | 2012-05-16 | 2012-12-05 | 万向电动汽车有限公司 | Power battery thermal management switching MOS tube short-circuit protection circuit |
| CN104377753A (en) * | 2014-09-28 | 2015-02-25 | 浙江超威创元实业有限公司 | Battery management system with field-effect tube breakdown detection function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10079483B2 (en) | Assembly for electrically protecting a potential short-circuit or an overload in a direct current power network having a system-determined, variable source-internal resistance | |
| CN201117742Y (en) | Lithium ion dynamic batteries administrative system | |
| EP3767731B1 (en) | Battery pack and charging bank | |
| KR101947664B1 (en) | Method and device for managing electrical energy storage assemblies for electrical power supply of an electric motor vehicle | |
| CN106696724B (en) | A kind of power battery of electric vehicle and its control method, device and electric vehicle | |
| CN104638718A (en) | Intelligent management system and method of electric vehicle battery | |
| CN204376464U (en) | A kind of battery of electric vehicle intelligent management system | |
| CN110445102B (en) | Electronic relay device and protection method | |
| CN108232347A (en) | Battery module management method and device of automatic guided transport vehicle | |
| CN109167108A (en) | Tappered rating in battery management system limits guard method | |
| CN204586541U (en) | A kind of monitored control system of the high voltage circuit for vehicle | |
| CN104392757A (en) | DCS for nuclear power station | |
| CN114094546B (en) | DC power supply and distribution system and protection method and device thereof | |
| CN107664752A (en) | A kind of battery pack method of calibration, apparatus and system | |
| CN103723045A (en) | Monitoring and alarming device for electric vehicle high-voltage power distribution systems | |
| CN101414754A (en) | Rechargeable battery-device combination and battery | |
| JP2022138166A (en) | Safety protection device and method for battery test system | |
| CN110957540A (en) | Management system and method for identifying and processing MOS short circuit | |
| CN111948575A (en) | Current transformer secondary side neutral line disconnection detection method and device | |
| CN113745768B (en) | Power battery system and battery thermal runaway control method | |
| CN106379183A (en) | Integrated electric automobile charging equipment safety protection module based on safety chain | |
| RU2679888C1 (en) | Connecting unit and network for energy distribution | |
| CN115923586A (en) | Over-current protection method for battery system and vehicle | |
| CN210894563U (en) | Direct current looped netowrk on-line monitoring system | |
| CN112654523B (en) | Method for operating a battery module |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200403 |