CN111186337A - Battery fault judging method and device - Google Patents
Battery fault judging method and device Download PDFInfo
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- CN111186337A CN111186337A CN202010039324.1A CN202010039324A CN111186337A CN 111186337 A CN111186337 A CN 111186337A CN 202010039324 A CN202010039324 A CN 202010039324A CN 111186337 A CN111186337 A CN 111186337A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Sustainable Energy (AREA)
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention provides a method and a device for judging battery faults, which relate to the technical field of battery management and comprise the steps of comparing acquired real-time battery data with threshold parameters, judging whether the real-time battery data reaches a current alarm level threshold value, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold value, an alarm generation delay value and a relay cut-off delay of a corresponding level; if the real-time battery data reaches the alarm threshold corresponding to the current alarm level, the state is reached, and whether the state reaching duration time reaches an alarm generation delay value is judged; if the alarm generation delay value is reached, alarming and judging whether the alarm time reaches the relay cut-off delay corresponding to the current alarm level; if the relay cut-off delay is reached, the relay is controlled to carry out cut-off operation, more parameters can be configured according to actual conditions, and more alarm fault conditions can be effectively judged.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to a battery fault judging method and device.
Background
At present, when a power battery management system of an electric vehicle and a battery management system of an automatic start-stop system of a fuel vehicle are used for detecting and processing alarms and faults, only one threshold parameter can be shared by all alarm levels to detect and judge fault conditions. In the practical application process, the alarm thresholds of the batteries in various levels are different, and currently, only one single threshold parameter is targeted, and different parameters and accurate judgment can not be comprehensively configured for the alarm conditions of various levels.
Disclosure of Invention
The invention aims to provide a battery fault judging method and a battery fault judging device, which can configure more threshold parameters according to actual conditions and effectively judge more alarm fault conditions.
In a first aspect, an embodiment provides a battery fault determination method, including:
comparing the acquired real-time battery data with threshold parameters, and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
if the real-time battery data reaches the alarm threshold value corresponding to the current alarm level, the state is reached, and whether the state reaching duration time reaches the alarm generation delay value corresponding to the current alarm level is judged;
if the alarm generation delay value is reached, alarming and judging whether the alarm time reaches the relay cut-off delay corresponding to the current alarm level;
and if the relay cut-off delay is reached, controlling the relay to carry out cut-off operation.
In an optional embodiment, before the step of determining whether the real-time battery data reaches the current alarm level threshold, the method further includes:
and judging whether the real-time battery data reaches a current alarm level threshold value or not by comparing the level to be judged with the current alarm level, wherein the level to be judged corresponds to the threshold value parameters of a plurality of levels.
In an optional embodiment, the step of determining whether the real-time battery data reaches the current alarm level threshold by comparing the level to be determined with the current alarm level further includes:
comparing the level to be judged with the current alarm level;
judging whether the level to be judged is not less than the current alarm level;
if not, the count of the alarm generation counter is increased by 1, and the count of the alarm elimination counter is set to 0;
if the number of the alarm generation counter is less than the preset value, the counting number of the alarm generation counter is increased by 1;
judging whether the count of the alarm generation counter of the grade to be judged meets a first count threshold value or not;
if the current alarm level is satisfied, the current level to be judged is the current alarm level, and the real-time battery data reaches the current alarm level threshold value.
In an optional embodiment, the step of determining whether the count of the alarm generation counter of the level to be determined satisfies a first count threshold further includes:
judging whether the count of the alarm generation counter meets a count threshold value;
if yes, the alarm elimination counter is set to 0.
In an optional embodiment, the step of determining whether the alarm time reaches the relay cut-off delay time corresponding to the current alarm level includes:
judging whether the current alarm level has no primary alarm or no associated relay of the primary alarm;
if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned;
if not, judging whether the cutting is not ready or not;
if not, returning to the state of preparing cutting off, and setting the count of the cutting off counter to be 0;
and if so, adding 1 to the count of the cut-off counter, judging whether the count of the cut-off counter reaches a second count threshold value, and if so, returning to the cut-off state.
In an optional embodiment, the step of determining whether the alarm time reaches the relay turn-off delay corresponding to the current alarm level further includes:
judging whether the current alarm level has no primary alarm and no secondary alarm or the secondary alarm has no associated relay;
if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned;
if not, whether to enter the preparation cutting is judged, if not, the cutting state is returned to the preparation cutting state, and the cutting counter is set to be 0.
In an alternative embodiment, the threshold parameter further includes a back difference value and a delay value for alarm elimination corresponding to each level.
In a second aspect, an embodiment provides a battery failure determination apparatus, including:
the first judging module is used for comparing the acquired real-time battery data with threshold parameters and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
a second judging module, configured to call a reached state if the real-time battery data reaches an alarm threshold corresponding to the current alarm level, and judge whether a state reaching duration time reaches an alarm generation delay value corresponding to the current alarm level;
the third judging module is used for alarming and judging whether the alarming time reaches the relay cut-off delay corresponding to the current alarming level or not if the alarming time reaches the alarming generation delay value;
and the cutting-off module is used for controlling the relay to carry out cutting-off operation if the relay cutting-off delay is reached.
In a third aspect, an embodiment provides an electronic device, including a memory, a processor, and a program stored on the memory and capable of running on the processor, where the processor implements the battery failure determination method according to any one of the foregoing embodiments when executing the program.
In a fourth aspect, an embodiment provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed, implements the battery failure determination method according to any one of the foregoing embodiments.
The embodiment of the invention provides a battery fault judging method and a device, which respectively and sequentially judge whether the current real-time battery data reaches the current alarm level, the alarm voltage return difference and the alarm delay value by setting a plurality of levels of threshold parameters and the alarm voltage return difference, the alarm delay value and the relay cut-off delay corresponding to each level of threshold parameters, and effectively judge more alarm fault conditions by configuring more threshold parameters according to actual conditions.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a battery fault determination method according to an embodiment of the present invention;
fig. 2 is a flowchart of an alarm level determination method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of functional modules of a battery fault determination apparatus according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a hardware architecture of an electronic device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the alarm faults of each level cannot be effectively judged, and threshold parameters such as alarm return difference, alarm delay value, charge and discharge power reduction value, alarm elimination delay and the like corresponding to each level cannot be individually configured on the basis, so that various alarm fault conditions cannot be comprehensively and effectively judged.
The alarm return difference can be understood as a voltage threshold range around the alarm voltage value, for example, the alarm voltage value is 60V, and the alarm return difference may be +5V to-5V. When the voltage value reaches 59V, although the situation of warning is not achieved at this time, the situation that the voltage oscillates back and forth is easy to occur as the distance between the voltage value and the warning voltage value is relatively short, at this time, warning is frequently performed, and the fault warning device is easy to damage, so that a warning return difference is set to solve the problem.
Similarly, the alarm delay value and the alarm cancellation delay value play the same role.
Here, the charge and discharge reduction value is to reduce the output and input current of the battery when the battery fails, that is, to output 10A current when the battery is normal, and if the battery failure is detected at this time, the battery is instructed to output 5A current, and the charge and discharge reduction value at this time is fifty percent.
Based on this, the battery fault judgment method and the battery fault judgment device provided by the embodiment of the invention can configure more threshold parameters according to actual conditions, and effectively judge more alarm fault conditions.
For the convenience of understanding the present embodiment, a method for determining a battery fault disclosed in the present embodiment will be described in detail first.
Fig. 1 is a flowchart of a battery fault determination method according to an embodiment of the present invention.
Referring to fig. 1, a battery fault determination method includes the steps of:
step S102, comparing the acquired real-time battery data with a threshold parameter, and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameter comprises a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
step S104, if the real-time battery data reaches the alarm threshold value corresponding to the current alarm level, the state is reached, and whether the state reaching duration time reaches the alarm generation delay value corresponding to the current alarm level is judged;
step S106, if the alarm generation delay value is reached, alarming is carried out and whether the alarm time reaches the relay cut-off delay corresponding to the current alarm level is judged;
and step S108, if the relay cut-off delay is reached, controlling the relay to cut off.
In a preferred embodiment of practical application, whether the current real-time battery data reaches the current alarm level, the alarm voltage return difference and the alarm delay value is respectively and sequentially judged by setting a plurality of levels of threshold parameters and the alarm voltage return difference, the alarm delay value and the relay cut-off delay corresponding to each level of threshold parameters, and more alarm fault conditions are effectively judged by configuring more threshold parameters according to actual conditions.
In an alternative embodiment, the threshold parameter further includes a delay value and a back error of alarm elimination corresponding to each level.
The embodiment of the invention has the following promotion about alarm and fault processing: the return difference of each level of alarm can be respectively set; delay values of all levels of alarms can be set respectively; delay values for alarm elimination at each level can be set respectively; the first-stage relay and the second-stage relay can be respectively set to cut off the time delay;
in an optional embodiment, before the determining of step S102 whether the real-time battery data reaches the current alarm level threshold, the method further includes:
step 1.1), judging whether the real-time battery data reaches a current alarm level threshold value or not by comparing the level to be judged with the current alarm level, wherein the level to be judged corresponds to threshold parameters of multiple levels.
In an alternative embodiment, step 1.1), further comprising:
step 1.11), comparing the level to be judged with the current alarm level;
step 1.12), judging whether the grade to be judged is not less than the current alarm grade;
step 1.13), if not, adding 1 to the count of the alarm generation counter and setting 0 to the count of the alarm elimination counter;
step 1.14), if the number is smaller than the preset value, adding 1 to the count of the alarm generation counter;
step 1.15), judging whether the count of the alarm generation counter of the grade to be judged meets a first count threshold value;
step 1.16), if the current alarm level is met, the current level to be judged is the current alarm level, and the real-time battery data reaches the current alarm level threshold value.
Here, it is determined whether the count of the alarm generation counter of the level to be determined satisfies the count threshold, and which level to be determined satisfies first, which level to be determined belongs to is the current alarm level at that time.
As an alternative embodiment, as shown in fig. 2;
step 3.1), judging whether the real-time battery data meets the alarm condition;
step 3.2), if yes, judging whether the grade to be judged is not less than the current alarm grade;
if yes, adding 1 to an alarm generation counter and setting 0 to an alarm elimination counter; if not, adding 1 to an alarm generation counter;
judging whether the count of the alarm generation counter meets a count threshold value, and if so, setting an alarm elimination counter to be 0; if not, setting an alarm generation counter to be 0;
step 3.3), if the level to be judged is less than the current alarm level, adding 1 to the count of the alarm generation counter;
if yes, setting the alarm generation counter to 0, if the alarm is eliminated, delaying! 0xFFFF and 0 xffffe, alarm cancellation counter + +; if not, if the alarm eliminates the time delay! 0xFFFF and 0 xffffe, alarm cancellation counter + +;
and judging whether the count of the alarm elimination counter meets a count threshold value, and if so, setting an alarm generation counter to be 0.
In an alternative embodiment, step 1.25), further comprising:
step 1.251), judging whether the count of the alarm generation counter meets a count threshold value;
step 1.252), if yes, setting an alarm elimination counter to be 0.
In an optional embodiment, the step of determining whether the alarm time reaches the relay cut-off delay time corresponding to the current alarm level in step S108 includes:
step 4.1), judging whether the current alarm level has no primary alarm or no associated relay of the primary alarm;
step 4.2), if yes, setting the counter of the cut-off counter to be 0, and returning to a non-cut-off state;
step 4.3), if not, judging whether the cutting is not ready;
step 4.4), if not, returning to a preparation cutting-off state, and setting the count of a cutting-off counter to be 0;
and 4.5), if the current state is entered, adding 1 to the count of the cut-off counter, judging whether the count of the cut-off counter reaches a second count threshold value, and if the count reaches the second count threshold value, returning to the cut-off state.
In an optional embodiment, the step of determining whether the alarm time reaches the relay turn-off delay corresponding to the current alarm level in step S108 further includes:
step 5.1), judging whether the current alarm level has no primary alarm and secondary alarm or the secondary alarm has no associated relay;
step 5.2), if yes, setting the counter of the cut-off counter to be 0, and returning to a non-cut-off state;
and 5.3), if not, judging whether to enter a cutting preparation state, if not, returning to the cutting preparation state, and setting the counter of the cutting counter to be 0.
As shown in fig. 3, an embodiment of the present invention provides a battery failure determination apparatus, including:
the first judging module is used for comparing the acquired real-time battery data with threshold parameters and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
a second judging module, configured to call a reached state if the real-time battery data reaches an alarm threshold corresponding to the current alarm level, and judge whether a state reaching duration time reaches an alarm generation delay value corresponding to the current alarm level;
the third judging module is used for alarming and judging whether the alarming time reaches the relay cut-off delay corresponding to the current alarming level or not if the alarming time reaches the alarming generation delay value;
and the cutting-off module is used for controlling the relay to carry out cutting-off operation if the relay cutting-off delay is reached.
In an optional embodiment, the first determining module is further specifically configured to determine, before the step of determining whether the real-time battery data reaches the current alarm level threshold, whether the real-time battery data reaches the current alarm level threshold by comparing a to-be-determined level with the current alarm level, where the to-be-determined level corresponds to threshold parameters of multiple levels.
In an optional embodiment, the first determining module is further configured to compare the level to be determined with the current alarm level; judging whether the level to be judged is not less than the current alarm level; if not, the count of the alarm generation counter is increased by 1, and the count of the alarm elimination counter is set to 0; if the number of the alarm generation counter is less than the preset value, the counting number of the alarm generation counter is increased by 1; judging whether the count of the alarm generation counter of the grade to be judged meets a first count threshold value or not; if the current alarm level is satisfied, the current level to be judged is the current alarm level, and the real-time battery data reaches the current alarm level threshold value.
In an optional embodiment, the first determining module is specifically further configured to determine whether a count of the alarm generation counter meets a count threshold; if yes, the alarm elimination counter is set to 0.
In an optional embodiment, the cutting-off module is specifically further configured to determine whether the current alarm level has no primary alarm or no relay associated with the primary alarm; if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned; if not, judging whether the cutting is not ready or not; if not, returning to the state of preparing cutting off, and setting the count of the cutting off counter to be 0; and if so, adding 1 to the count of the cut-off counter, judging whether the count of the cut-off counter reaches a second count threshold value, and if so, returning to the cut-off state.
In an optional embodiment, the cutting-off module is specifically further configured to determine whether the current alarm level has no primary alarm and no secondary alarm, or whether the secondary alarm has no associated relay; if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned; if not, whether to enter the preparation cutting is judged, if not, the cutting state is returned to the preparation cutting state, and the cutting counter is set to be 0.
In an alternative embodiment, the threshold parameter further includes a delay value for alarm elimination corresponding to each level.
Referring to fig. 4, an embodiment of the present invention further provides an electronic device 400, which includes a communication interface 401, a processor 402, a memory 403, and a bus 404, where the processor 402, the communication interface 401, and the memory 403 are connected by the bus 404; the memory 403 is used for storing computer programs that support the processor 402 to execute the battery failure determination method, and the processor 402 is configured to execute the programs stored in the memory 403.
A machine-readable storage medium as referred to herein may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, and the like. For example, the machine-readable storage medium may be: a RAM (random Access Memory), a volatile Memory, a non-volatile Memory, a flash Memory, a storage drive (e.g., a hard drive), any type of storage disk (e.g., an optical disk, a dvd, etc.), or similar storage medium, or a combination thereof.
The non-volatile medium may be non-volatile memory, flash memory, a storage drive (e.g., a hard drive), any type of storage disk (e.g., an optical disk, dvd, etc.), or similar non-volatile storage medium, or a combination thereof.
It can be understood that, for the specific operation method of each functional module in this embodiment, reference may be made to the detailed description of the corresponding step in the foregoing method embodiment, and no repeated description is provided herein.
The computer-readable storage medium provided in the embodiments of the present invention stores a computer program, and when executed, the computer program code may implement the battery fault determination method according to any of the above embodiments, and for specific implementation, reference may be made to the method embodiment, which is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. A battery failure determination method, comprising:
comparing the acquired real-time battery data with threshold parameters, and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
if the real-time battery data reaches the alarm threshold value corresponding to the current alarm level, the state is reached, and whether the state reaching duration time reaches the alarm generation delay value corresponding to the current alarm level is judged;
if the alarm generation delay value is reached, alarming and judging whether the alarm time reaches the relay cut-off delay corresponding to the current alarm level;
and if the relay cut-off delay is reached, controlling the relay to carry out cut-off operation.
2. The method according to claim 1, wherein before the step of determining whether the real-time battery data reaches the current alarm level threshold, the method further comprises:
and judging whether the real-time battery data reaches a current alarm level threshold value or not by comparing the level to be judged with the current alarm level, wherein the level to be judged corresponds to the threshold value parameters of a plurality of levels.
3. The method for determining battery faults according to claim 2, wherein the step of determining whether the real-time battery data reaches the current alarm level threshold by comparing the level to be determined with the current alarm level further comprises:
comparing the level to be judged with the current alarm level;
judging whether the level to be judged is not less than the current alarm level;
if not, the count of the alarm generation counter is increased by 1, and the count of the alarm elimination counter is set to 0;
if the number of the alarm generation counter is less than the preset value, the counting number of the alarm generation counter is increased by 1;
judging whether the count of the alarm generation counter of the grade to be judged meets a first count threshold value or not;
if the current alarm level is satisfied, the current level to be judged is the current alarm level, and the real-time battery data reaches the current alarm level threshold value.
4. The battery failure determination method according to claim 3, wherein the step of determining whether the count of the alarm generation counter of the level to be determined satisfies a first count threshold value further comprises:
judging whether the count of the alarm generation counter meets a count threshold value;
if yes, the alarm elimination counter is set to 0.
5. The method for determining battery faults according to claim 1, wherein the step of determining whether the alarm time reaches the relay cut-off delay time corresponding to the current alarm level includes:
judging whether the current alarm level has no primary alarm or no associated relay of the primary alarm;
if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned;
if not, judging whether the cutting is not ready or not;
if not, returning to the state of preparing cutting off, and setting the count of the cutting off counter to be 0;
and if so, adding 1 to the count of the cut-off counter, judging whether the count of the cut-off counter reaches a second count threshold value, and if so, returning to the cut-off state.
6. The method for determining battery faults according to claim 1, wherein the step of determining whether the alarm time reaches the relay cut-off delay corresponding to the current alarm level further comprises:
judging whether the current alarm level has no primary alarm and no secondary alarm or the secondary alarm has no associated relay;
if yes, the cut-off counter is set to be 0, and the state of no cut-off is returned;
if not, whether to enter the preparation cutting is judged, if not, the cutting state is returned to the preparation cutting state, and the cutting counter is set to be 0.
7. The battery failure determination method according to claim 6, wherein the threshold parameters further include a return difference value and a delay value for alarm elimination corresponding to each level.
8. A battery failure determination device, comprising:
the first judging module is used for comparing the acquired real-time battery data with threshold parameters and judging whether the real-time battery data reaches a current alarm level threshold, wherein the parameters comprise a plurality of levels, and each level is provided with an alarm threshold of a corresponding level, an alarm generation delay value and a relay cut-off delay;
a second judging module, configured to call a reached state if the real-time battery data reaches an alarm threshold corresponding to the current alarm level, and judge whether a state reaching duration time reaches an alarm generation delay value corresponding to the current alarm level;
the third judging module is used for alarming and judging whether the alarming time reaches the relay cut-off delay corresponding to the current alarming level or not if the alarming time reaches the alarming generation delay value;
and the cutting-off module is used for controlling the relay to carry out cutting-off operation if the relay cutting-off delay is reached.
9. An electronic device comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements the battery failure determination method according to any one of claims 1 to 7 when executing the program.
10. A computer-readable storage medium, in which a computer program is stored, which when executed implements the battery failure determination method according to any one of claims 1 to 7.
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| WO2021245698A1 (en) * | 2020-06-01 | 2021-12-09 | Ola Electric Mobility Private Limited | Offline authentication of batteries |
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