CN115810815B - Processing method and system suitable for battery protection - Google Patents
Processing method and system suitable for battery protection Download PDFInfo
- Publication number
- CN115810815B CN115810815B CN202310066567.8A CN202310066567A CN115810815B CN 115810815 B CN115810815 B CN 115810815B CN 202310066567 A CN202310066567 A CN 202310066567A CN 115810815 B CN115810815 B CN 115810815B
- Authority
- CN
- China
- Prior art keywords
- pressure
- shaking
- battery
- value
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 225
- 238000004458 analytical method Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 11
- 238000004088 simulation Methods 0.000 claims description 75
- 238000012163 sequencing technique Methods 0.000 claims description 18
- 230000003068 static effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 230000008961 swelling Effects 0.000 abstract description 6
- 238000004590 computer program Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention provides a processing method and a processing system suitable for battery protection, and relates to the technical field of battery protection, wherein the processing system comprises a loss detection module, a fault detection module and a standby protection module; the loss detection module comprises a shaking loss detection unit and a shaking analysis unit, wherein the shaking loss detection unit comprises a pressure detection frame, a movable ball is arranged in the pressure detection frame, and the movable ball is used for moving in the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors, and the shaking pressure detectors are used for acquiring the pressure value of the movable ball; according to the invention, by continuously detecting and analyzing the shaking factors in the environment where the battery is located and analyzing the swelling condition of the battery, when the battery has insufficient electric quantity, the existing shaking and swelling factors are combined for early warning protection in advance, so that the problem of insufficient early warning performance of the existing battery protection is solved.
Description
Technical Field
The invention relates to the technical field of battery protection, in particular to a processing method and a processing system suitable for battery protection.
Background
A battery refers to a device that converts chemical energy into electrical energy in a cup, tank, or other container or portion of a composite container that contains an electrolyte solution and metal electrodes to generate an electrical current. Has a positive electrode and a negative electrode. With the advancement of technology, batteries are widely referred to as small devices capable of generating electrical energy. With the continuous development of electric automobiles, the applicability and importance of batteries are increasing.
In the prior art, when the battery is protected, the battery is usually subjected to fault investigation and protection after encountering faults, and meanwhile, the existing battery detection mode is usually used for monitoring and judging the running condition of the battery, so that early warning is difficult to realize, for example: in the existing electric automobile field, the reason that the battery breaks down is manifold, because the electric automobile is driven on the road surface, and with some fixed or the battery in the equipment that the movable range is not too big, the battery in the electric automobile can receive collision, rock and the influence of factors such as extrusion, to the life of battery these all be the influence factor, adopts the early warning protection of current battery protection mode very difficult accomplish in advance.
Disclosure of Invention
According to the invention, by continuously detecting and analyzing the shaking factors in the environment where the battery is located and analyzing the swelling condition of the battery, when the battery has insufficient electric quantity, the existing shaking and swelling factors are combined for early warning protection in advance, so that the problem of insufficient early warning performance of the existing battery protection is solved.
In order to achieve the above object, the present invention is applicable to a battery protection processing system, which includes a loss detection module, a fault detection module, and a backup protection module;
the loss detection module comprises a shaking loss detection unit and a shaking analysis unit, wherein the shaking loss detection unit comprises a pressure detection frame, a movable ball is arranged in the pressure detection frame, and the movable ball is used for moving in the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors, and the shaking pressure detectors are used for acquiring the pressure value of the movable ball;
the shaking analysis unit is used for analyzing based on the pressure value detected by the shaking pressure detector to obtain a shaking loss result;
the fault detection module comprises a plurality of bulge pressure detectors arranged on the side surface of the inner wall of the battery shell, and performs bulge fault analysis based on the pressure values detected by the bulge pressure detectors to obtain bulge fault results;
the standby protection module is used for judging the effective residual quantity of the battery of the standby battery, analyzing the vibration loss and the bulge fault, and carrying out protection detection and early warning on the standby battery.
Further, the shake-loss detection unit is configured with a shake-loss detection strategy, and the shake-loss detection strategy includes: acquiring a pressure value at the bottom of the pressure detection frame in a static state, and setting the pressure value as a bottom reference pressure value;
acquiring a pressure value of the bottom of the pressure detection frame in a use state, setting the pressure value as a bottom detection pressure value, and when the bottom detection pressure value is larger than a bottom reference pressure value, obtaining a difference value of the bottom detection pressure value minus the bottom reference pressure value, and setting the difference value as a bottom pressure difference value; counting the parts of the bottom pressure difference value which are larger than the first pressure threshold value, and setting the parts as the effective bottom pressure detection quantity;
acquiring a pressure value of the side face of the pressure detection frame in a use state, and setting the pressure value as a side face detection pressure value; when the side detection pressure value is larger than the side reference pressure value, calculating a difference value between the side detection pressure value and the side reference pressure value, and setting the difference value as a side pressure difference value; counting the parts of the side pressure difference value which are larger than a second pressure threshold value, and setting the parts as the effective side pressure detection quantity;
acquiring a pressure value of the top of the pressure detection frame in a use state, and setting the pressure value as a top detection pressure value; when the top detection pressure value is larger than the top reference pressure value, calculating a difference value between the top detection pressure value and the top reference pressure value, and setting the difference value as a top pressure difference value; counting the parts of the top pressure difference value which are larger than a third pressure threshold value, and setting the parts as the effective quantity of the top pressure detection;
sequencing the bottom pressure difference values in the effective quantity of bottom pressure detection from large to small, and selecting the bottom pressure difference values of a first proportion before sequencing to add to obtain the total bottom pressure reference quantity; sequencing the side pressure difference values in the side pressure detection effective quantity from large to small, and selecting the side pressure difference values of a first proportion before sequencing to add to obtain the side pressure reference total quantity; sorting the top pressure difference values in the effective quantity of the top pressure detection from large to small, and selecting the top pressure difference values in a first proportion before sorting to add to obtain the total top pressure reference quantity.
Further, the shake analysis unit is configured with a shake analysis strategy, the shake analysis strategy including: acquiring a bottom pressure reference total amount, a side pressure reference total amount and a top pressure reference total amount once every first loss time;
adding the total bottom pressure reference amount, the total side pressure reference amount and the total top pressure reference amount to obtain a shaking loss total amount;
outputting a first-stage shaking loss level signal when the total shaking loss is greater than or equal to a first shaking reference total threshold; outputting a second-level shaking loss level signal when the total shaking loss is greater than or equal to the second shaking reference total threshold and less than the first shaking reference total threshold; and outputting a three-level shaking loss level signal when the total shaking loss is smaller than a second shaking reference total threshold, wherein the first shaking reference total threshold is larger than the second shaking reference total threshold.
Further, the shake analysis unit is further configured with a shake simulation strategy, where the shake simulation strategy includes: setting a shaking simulation device, wherein the shaking simulation device comprises a shaking base, a battery assembly simulation unit and a pressure simulation detection frame; installing the battery assembly independent unit and the pressure detection frame on a shaking base, wherein the shaking base is used for driving the battery assembly independent unit and the pressure detection frame to perform omnibearing shaking simulation; the structure of the pressure simulation detection frame is the same as that of the pressure detection frame;
and detecting batteries in the battery assembly simulation unit at each interval of the first simulation time length to obtain a battery fault proportion, setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as a second shaking reference total threshold value when the battery fault proportion is equal to the first fault proportion, and setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as the first shaking reference total threshold value when the battery fault proportion is equal to the second fault proportion, wherein the second fault proportion is larger than the first fault proportion, and the obtaining mode of the shaking loss simulation total amount is the same as that of the shaking loss total amount.
Further, the fault detection module is configured with a bulge detection policy, the bulge detection policy comprising: setting the pressure value detected by the bulge pressure detector as a bulge pressure value, and outputting a battery bulge signal when the detected bulge pressure value is larger than a first bulge pressure threshold value and the duration time is longer than a first bulge duration time;
and continuously detecting the battery outputting the battery bulge signal, and outputting a bulge fault signal when the bulge pressure value is detected to be larger than the second bulge pressure threshold value.
Further, the backup protection module is configured with a backup protection management policy, the backup protection management policy comprising: setting a standby battery;
acquiring the effective residual quantity of the battery of the standby battery, and setting the standby battery as a common battery when the effective residual quantity of the battery is larger than a first effective ratio; setting the standby battery as a temporary use battery when the effective remaining amount of the battery is less than or equal to the first effective ratio and greater than the second effective ratio, and setting the standby battery as an emergency use battery when the effective remaining amount of the battery is less than or equal to the second effective ratio;
when the standby batteries are all common batteries, the power consumption is evenly distributed;
when the standby battery is a common battery, shake loss signals are screened from the common battery, and when a first-level shake loss level signal exists, a standby first-level protection detection signal is output;
when the standby battery is an emergency battery, the emergency battery is subjected to bulge signal screening, and when the emergency battery has a battery bulge signal, a secondary protection detection signal is output; when the emergency battery has a bulge fault signal, a three-level protection detection signal is output.
The processing method is suitable for battery protection, and is provided with a pressure detection frame, wherein a movable ball is arranged in the pressure detection frame and is used for moving in the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors which are used for acquiring the pressure value of the movable ball, wherein the side surfaces of the inner wall of the battery case are provided with a plurality of bulge pressure detectors;
the processing method comprises the following steps:
s1: analyzing based on the pressure value detected by the shaking pressure detector to obtain a shaking loss result;
s2: performing bulge fault analysis based on the pressure value detected by the bulge pressure detector to obtain bulge fault results;
s3: and judging the effective residual quantity of the battery of the standby battery, analyzing by combining the shaking loss and the bulge fault, and carrying out protection detection and early warning of the standby battery.
The invention has the beneficial effects that:
1. according to the invention, the shaking loss result is obtained by analyzing the pressure value detected by the shaking pressure detector, the shaking factors in the environment where the battery is positioned can be accumulated, and when the shaking influence factors reach a certain degree, the shaking influence factors are combined with the electric quantity condition of the battery, so that early warning of battery protection can be performed in advance;
2. according to the invention, the bulge fault analysis is carried out based on the pressure value detected by the bulge pressure detector to obtain the bulge fault result, and the bulge condition of the battery can be obtained by the design, so that the bulge of the battery can be early warned in advance;
3. according to the invention, the effective residual quantity of the battery of the standby battery is judged, and the protection detection and early warning of the standby battery are carried out by combining the shaking loss and the bulge fault, so that the early warning timeliness of the protection of the battery can be improved, and the protection effect of the battery is improved.
Additional aspects of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of the steps of the processing method of the present invention;
FIG. 2 is a functional block diagram of a processing system of the present invention;
fig. 3 is a schematic structural arrangement of the pressure detection frame of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention.
Embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Referring to fig. 2 and 3, the present invention provides a processing system suitable for battery protection, which is capable of performing early warning protection by combining existing shaking and swelling factors when the battery has insufficient electric quantity by continuously detecting and analyzing shaking factors in an environment where the battery is located and analyzing swelling conditions of the battery, so as to solve the problem of insufficient early warning performance of the existing battery protection.
Specifically, the processing system comprises a loss detection module, a fault detection module and a standby protection module.
Referring to fig. 3, the loss detection module includes a shake loss detection unit and a shake analysis unit, the shake loss detection unit includes a pressure detection frame, a movable ball is disposed in the pressure detection frame, and the movable ball is used for moving in the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors, and the shaking pressure detectors are used for acquiring the pressure value of the movable ball; the setting environment of pressure frame is the same with the environment that the battery was located, for example, when the battery was used in electric automobile, and the pressure detection frame can set up in electric automobile's chassis, and set up in an area with the battery, and the numerical value that the pressure detection frame detected can laminate with the actual condition of battery well like this.
The shaking analysis unit is used for analyzing based on the pressure value detected by the shaking pressure detector to obtain a shaking loss result; the shake-loss detection unit is configured with a shake-loss detection strategy, and the shake-loss detection strategy comprises: acquiring a pressure value at the bottom of the pressure detection frame in a static state, and setting the pressure value as a bottom reference pressure value; the static state is a state that the movable ball is static in the pressure detection frame, at the moment, the pressure value of the bottom of the pressure detection frame is detected, the pressure value of the movable ball on the bottom of the pressure detection frame is actually detected, and when the movable ball is detected later, the pressure of the movable ball on the bottom of the pressure detection frame is obtained after the pressure value is removed;
acquiring a pressure value of the bottom of the pressure detection frame in a use state, setting the pressure value as a bottom detection pressure value, and when the bottom detection pressure value is larger than a bottom reference pressure value, obtaining a difference value of the bottom detection pressure value minus the bottom reference pressure value, and setting the difference value as a bottom pressure difference value; counting the parts of the bottom pressure difference value which are larger than the first pressure threshold value, and setting the parts as the effective bottom pressure detection quantity; in specific implementation, the setting of the first pressure threshold needs to be set according to the specification of the movable ball, for example, the movable ball is set to 100g, the detected reference pressure value is 300N, and the first pressure threshold is set to 200N;
acquiring a pressure value of the side face of the pressure detection frame in a use state, and setting the pressure value as a side face detection pressure value; when the side detection pressure value is larger than the side reference pressure value, calculating a difference value between the side detection pressure value and the side reference pressure value, and setting the difference value as a side pressure difference value; counting the parts of the side pressure difference value which are larger than a second pressure threshold value, and setting the parts as the effective side pressure detection quantity; in specific implementation, the side reference pressure value is set to 100N, and the second pressure threshold value is set to 200N;
acquiring a pressure value of the top of the pressure detection frame in a use state, and setting the pressure value as a top detection pressure value; when the top detection pressure value is larger than the top reference pressure value, calculating a difference value between the top detection pressure value and the top reference pressure value, and setting the difference value as a top pressure difference value; counting the parts of the top pressure difference value which are larger than a third pressure threshold value, and setting the parts as the effective quantity of the top pressure detection; in particular implementations, the top reference pressure value is set to 50N and the third pressure threshold is set to 200N;
sequencing the bottom pressure difference values in the effective quantity of bottom pressure detection from large to small, and selecting the bottom pressure difference values of a first proportion before sequencing to add to obtain the total bottom pressure reference quantity; sequencing the side pressure difference values in the side pressure detection effective quantity from large to small, and selecting the side pressure difference values of a first proportion before sequencing to add to obtain the side pressure reference total quantity; sorting the top pressure difference values in the effective quantity of the top pressure detection from large to small, selecting the top pressure difference values of a first proportion before sorting, adding to obtain the total top pressure reference quantity, setting the first proportion to 20%, and acquiring the data of the first 20%, wherein the substantial influence on the battery is most obvious because the shaking amplitude corresponding to the data of the first 20% is the largest.
The shake analysis unit is configured with a shake analysis strategy, the shake analysis strategy including: acquiring a bottom pressure reference total amount, a side pressure reference total amount and a top pressure reference total amount once every first loss time; in specific implementation, the first loss time period is set to 7 days;
adding the total bottom pressure reference amount, the total side pressure reference amount and the total top pressure reference amount to obtain a shaking loss total amount;
outputting a first-stage shaking loss level signal when the total shaking loss is greater than or equal to a first shaking reference total threshold; outputting a second-level shaking loss level signal when the total shaking loss is greater than or equal to the second shaking reference total threshold and less than the first shaking reference total threshold; when the total shaking loss is smaller than a second shaking reference total threshold, outputting a three-level shaking loss level signal, wherein the first shaking reference total threshold is larger than the second shaking reference total threshold, and in specific implementation, the first shaking reference total threshold is set to 50000N, and the second shaking reference total threshold is set to 20000N;
the shake analysis unit is further configured with a shake simulation strategy, the shake simulation strategy including: setting a shaking simulation device, wherein the shaking simulation device comprises a shaking base, a battery assembly simulation unit and a pressure simulation detection frame; installing the battery assembly independent unit and the pressure detection frame on a shaking base, wherein the shaking base is used for driving the battery assembly independent unit and the pressure detection frame to perform omnibearing shaking simulation; the structure of the pressure simulation detection frame is the same as that of the pressure detection frame;
detecting batteries in a battery assembly simulation unit at each interval for a first simulation duration to obtain a battery fault proportion, setting the corresponding shaking loss simulation total quantity of the pressure simulation detection frame obtained at the moment as a second shaking reference total threshold value when the battery fault proportion is equal to the first fault proportion, and setting the corresponding shaking loss simulation total quantity of the pressure simulation detection frame obtained at the moment as a first shaking reference total threshold value when the battery fault proportion is equal to the second fault proportion, wherein the second fault proportion is larger than the first fault proportion, the obtaining mode of the shaking loss simulation total quantity is the same as that of the shaking loss total quantity, and when the battery assembly simulation unit is concretely implemented, the first simulation duration is set to 5h, the first fault proportion is set to 10%, the second fault proportion is set to 30%, and when the shaking simulation is carried out, the condition that a top pressure difference value, a side pressure difference value or a bottom pressure difference value exists in a 5% time proportion in a shaking simulation process is required to be ensured to be larger than 200N.
The fault detection module comprises a plurality of bulge pressure detectors arranged on the side surface of the inner wall of the battery shell, and performs bulge fault analysis based on the pressure values detected by the bulge pressure detectors to obtain bulge fault results; the fault detection module is configured with a bulge detection strategy comprising: setting the pressure value detected by the bulge pressure detector as a bulge pressure value, and outputting a battery bulge signal when the detected bulge pressure value is larger than a first bulge pressure threshold value and the duration time is longer than a first bulge duration time; in specific implementation, the first bulge pressure threshold is set to 100N, and the first bulge time length is set to 1min; the bulge state is a continuous state, and the bulge state is detected to be more than 1min and is effectively detected;
and continuously detecting the battery outputting the battery bulge signal, and outputting a bulge fault signal when detecting that the bulge pressure value is larger than a second bulge pressure threshold value, wherein the second bulge pressure threshold value is set to be 500N.
The standby protection module is used for judging the effective residual quantity of the battery of the standby battery, analyzing the vibration loss and the bulge fault, and carrying out protection detection and early warning on the standby battery; the standby protection module is configured with a standby protection management policy, the standby protection management policy comprising: when the actual use scene is pure electric use equipment, such as an electric automobile, the standby battery is all battery packs in the electric automobile;
acquiring the effective residual quantity of the battery of the standby battery, and setting the standby battery as a common battery when the effective residual quantity of the battery is larger than a first effective ratio; setting the standby battery as a temporary use battery when the effective remaining amount of the battery is less than or equal to the first effective ratio and greater than the second effective ratio, and setting the standby battery as an emergency use battery when the effective remaining amount of the battery is less than or equal to the second effective ratio; the effective residual quantity of the battery adopts the existing battery residual quantity detection technology, for example, in the field of mobile phone battery detection, the effective electric quantity of the battery is estimated, the effective electric quantity is the proportion of the battery to the initial state, the battery in the initial state is in the most healthy state, the storage quantity of 100% can be achieved, the subsequent battery is gradually attenuated, the electric quantity is only 80% of the initial electric quantity, and 80% is the effective residual quantity of the battery at the moment;
when the standby batteries are all common batteries, the power consumption is evenly distributed;
when the standby battery is a common battery, shake loss signals are screened from the common battery, and when a first-level shake loss level signal exists, a standby first-level protection detection signal is output;
when the standby battery is an emergency battery, the emergency battery is subjected to bulge signal screening, and when the emergency battery has a battery bulge signal, a secondary protection detection signal is output; when the emergency battery has a bulge fault signal, a three-level protection detection signal is output.
The invention also provides a processing method suitable for battery protection, the processing method is provided with a pressure detection frame, a movable ball is arranged in the pressure detection frame, and the movable ball is used for moving in the pressure detection frame; a plurality of shaking pressure detectors are respectively arranged at the top, the bottom and the side surfaces in the pressure detection frame, and are used for acquiring the pressure value of the movable ball, wherein a plurality of bulge pressure detectors are arranged on the side surface of the inner wall of the battery shell;
referring to fig. 1, the processing method includes the following steps:
step S1, analyzing based on a pressure value detected by a shaking pressure detector to obtain a shaking loss result;
step S1 further includes:
step S111, obtaining a pressure value of the bottom of the pressure detection frame in a static state, and setting the pressure value as a bottom reference pressure value;
step S112, obtaining the pressure value of the bottom of the pressure detection frame in a use state, setting the pressure value as a bottom detection pressure value, and when the bottom detection pressure value is larger than a bottom reference pressure value, obtaining the difference value of the bottom detection pressure value minus the bottom reference pressure value, and setting the difference value as a bottom pressure difference value; counting the parts of the bottom pressure difference value which are larger than the first pressure threshold value, and setting the parts as the effective bottom pressure detection quantity;
step S113, obtaining the pressure value of the side face of the pressure detection frame in the use state, and setting the pressure value as the side face detection pressure value; when the side detection pressure value is larger than the side reference pressure value, calculating a difference value between the side detection pressure value and the side reference pressure value, and setting the difference value as a side pressure difference value; counting the parts of the side pressure difference value which are larger than a second pressure threshold value, and setting the parts as the effective side pressure detection quantity;
step S114, obtaining the pressure value of the top of the pressure detection frame in the use state, and setting the pressure value as the top detection pressure value; when the top detection pressure value is larger than the top reference pressure value, calculating a difference value between the top detection pressure value and the top reference pressure value, and setting the difference value as a top pressure difference value; counting the parts of the top pressure difference value which are larger than a third pressure threshold value, and setting the parts as the effective quantity of the top pressure detection;
step S115, sorting the bottom pressure difference values in the effective quantity of bottom pressure detection from large to small, selecting the bottom pressure difference values of the first proportion before sorting, and adding to obtain the total bottom pressure reference quantity; sequencing the side pressure difference values in the side pressure detection effective quantity from large to small, and selecting the side pressure difference values of a first proportion before sequencing to add to obtain the side pressure reference total quantity; sorting the top pressure difference values in the effective quantity of the top pressure detection from large to small, and selecting the top pressure difference values in a first proportion before sorting to add to obtain the total top pressure reference quantity.
Step S1 further includes:
step S121, obtaining a bottom pressure reference total amount, a side pressure reference total amount, and a top pressure reference total amount once every interval of a first loss period;
step S122, adding the total bottom pressure reference amount, the total side pressure reference amount and the total top pressure reference amount to obtain a shaking loss total amount;
step S123, when the total shaking loss is greater than or equal to a first shaking reference total threshold, outputting a first-stage shaking loss level signal; outputting a second-level shaking loss level signal when the total shaking loss is greater than or equal to the second shaking reference total threshold and less than the first shaking reference total threshold; and outputting a three-level shaking loss level signal when the total shaking loss is smaller than a second shaking reference total threshold, wherein the first shaking reference total threshold is larger than the second shaking reference total threshold.
Step S1 further includes:
step S131, setting a shaking simulation device, wherein the shaking simulation device comprises a shaking base, a battery assembly simulation unit and a pressure simulation detection frame; installing the battery assembly independent unit and the pressure detection frame on a shaking base, wherein the shaking base is used for driving the battery assembly independent unit and the pressure detection frame to perform omnibearing shaking simulation; the structure of the pressure simulation detection frame is the same as that of the pressure detection frame;
step S132, detecting a battery in a battery assembly simulation unit at each first simulation time interval to obtain a battery fault proportion, setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as a second shaking reference total threshold value when the battery fault proportion is equal to the first fault proportion, and setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as the first shaking reference total threshold value when the battery fault proportion is equal to the second fault proportion, wherein the second fault proportion is larger than the first fault proportion, and the obtaining mode of the shaking loss simulation total amount is the same as that of the shaking loss total amount.
S2, performing bulge fault analysis based on the pressure value detected by the bulge pressure detector to obtain bulge fault results;
step S2 further includes:
step S21, setting the pressure value detected by the bulge pressure detector as a bulge pressure value, and outputting a battery bulge signal when the detected bulge pressure value is larger than a first bulge pressure threshold value and the duration time is larger than a first bulge duration time;
and S22, continuing to detect the battery outputting the battery bulge signal, and outputting a bulge fault signal when the bulge pressure value is detected to be larger than the second bulge pressure threshold value.
Step S3, judging the effective residual quantity of the battery of the standby battery, analyzing by combining shaking loss and bulge faults, and carrying out protection detection and early warning on the standby battery;
step S3 further includes:
step S31, setting a standby battery;
step S32, acquiring the effective residual quantity of the battery of the standby battery, and setting the standby battery as a common battery when the effective residual quantity of the battery is larger than a first effective ratio; setting the standby battery as a temporary use battery when the effective remaining amount of the battery is less than or equal to the first effective ratio and greater than the second effective ratio, and setting the standby battery as an emergency use battery when the effective remaining amount of the battery is less than or equal to the second effective ratio;
step S33, when the standby batteries are all common batteries, the power consumption is evenly distributed;
step S34, when the standby battery is a common battery, shake loss signals are screened from the common battery, and when a first-level shake loss level signal exists, a standby first-level protection detection signal is output;
step S35, when the standby battery is an emergency battery, the emergency battery is subjected to bulge signal screening, and when the emergency battery has a battery bulge signal, a secondary protection detection signal is output; when the emergency battery has a bulge fault signal, a three-level protection detection signal is output.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein. The storage medium may be implemented by any type or combination of volatile or nonvolatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM), electrically erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), programmable Read-Only Memory (PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
The above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The processing system is suitable for battery protection and is characterized by comprising a loss detection module, a fault detection module and a standby protection module;
the loss detection module comprises a shaking loss detection unit and a shaking analysis unit, wherein the shaking loss detection unit comprises a pressure detection frame, a movable ball is arranged in the pressure detection frame, and the movable ball is used for moving in the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors, and the shaking pressure detectors are used for acquiring the pressure value of the movable ball;
the shaking analysis unit is used for analyzing based on the pressure value detected by the shaking pressure detector to obtain a shaking loss result;
the fault detection module comprises a plurality of bulge pressure detectors arranged on the side surface of the inner wall of the battery shell, and performs bulge fault analysis based on the pressure values detected by the bulge pressure detectors to obtain bulge fault results;
the standby protection module is used for judging the effective residual quantity of the battery of the standby battery, analyzing the vibration loss and the bulge fault, and carrying out protection detection and early warning on the standby battery;
the shake loss detection unit is configured with a shake loss detection strategy, and the shake loss detection strategy comprises: acquiring a pressure value at the bottom of the pressure detection frame in a static state, and setting the pressure value as a bottom reference pressure value;
acquiring a pressure value of the bottom of the pressure detection frame in a use state, setting the pressure value as a bottom detection pressure value, and when the bottom detection pressure value is larger than a bottom reference pressure value, obtaining a difference value of the bottom detection pressure value minus the bottom reference pressure value, and setting the difference value as a bottom pressure difference value; counting the parts of the bottom pressure difference value which are larger than the first pressure threshold value, and setting the parts as the effective bottom pressure detection quantity;
acquiring a pressure value of the side face of the pressure detection frame in a use state, and setting the pressure value as a side face detection pressure value; when the side detection pressure value is larger than the side reference pressure value, calculating a difference value between the side detection pressure value and the side reference pressure value, and setting the difference value as a side pressure difference value; counting the parts of the side pressure difference value which are larger than a second pressure threshold value, and setting the parts as the effective side pressure detection quantity;
acquiring a pressure value of the top of the pressure detection frame in a use state, and setting the pressure value as a top detection pressure value; when the top detection pressure value is larger than the top reference pressure value, calculating a difference value between the top detection pressure value and the top reference pressure value, and setting the difference value as a top pressure difference value; counting the parts of the top pressure difference value which are larger than a third pressure threshold value, and setting the parts as the effective quantity of the top pressure detection;
sequencing the bottom pressure difference values in the effective quantity of bottom pressure detection from large to small, and selecting the bottom pressure difference values of a first proportion before sequencing to add to obtain the total bottom pressure reference quantity; sequencing the side pressure difference values in the side pressure detection effective quantity from large to small, and selecting the side pressure difference values of a first proportion before sequencing to add to obtain the side pressure reference total quantity; sorting the top pressure difference values in the effective quantity of the top pressure detection from large to small, and selecting the top pressure difference values of a first proportion before sorting to add to obtain the total top pressure reference quantity;
the shake analysis unit is configured with a shake analysis strategy, and the shake analysis strategy comprises: acquiring a bottom pressure reference total amount, a side pressure reference total amount and a top pressure reference total amount once every first loss time;
adding the total bottom pressure reference amount, the total side pressure reference amount and the total top pressure reference amount to obtain a shaking loss total amount;
outputting a first-stage shaking loss level signal when the total shaking loss is greater than or equal to a first shaking reference total threshold; outputting a second-level shaking loss level signal when the total shaking loss is greater than or equal to the second shaking reference total threshold and less than the first shaking reference total threshold; outputting a three-level shaking loss level signal when the total shaking loss is smaller than a second shaking reference total threshold, wherein the first shaking reference total threshold is larger than the second shaking reference total threshold;
the shake analysis unit is further configured with a shake simulation strategy, and the shake simulation strategy includes: setting a shaking simulation device, wherein the shaking simulation device comprises a shaking base, a battery assembly simulation unit and a pressure simulation detection frame; installing the battery assembly independent unit and the pressure detection frame on a shaking base, wherein the shaking base is used for driving the battery assembly independent unit and the pressure detection frame to perform omnibearing shaking simulation; the structure of the pressure simulation detection frame is the same as that of the pressure detection frame;
and detecting batteries in the battery assembly simulation unit at each interval of the first simulation time length to obtain a battery fault proportion, setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as a second shaking reference total threshold value when the battery fault proportion is equal to the first fault proportion, and setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as the first shaking reference total threshold value when the battery fault proportion is equal to the second fault proportion, wherein the second fault proportion is larger than the first fault proportion, and the obtaining mode of the shaking loss simulation total amount is the same as that of the shaking loss total amount.
2. The processing system for battery protection according to claim 1, wherein the fault detection module is configured with a bulge detection strategy comprising: setting the pressure value detected by the bulge pressure detector as a bulge pressure value, and outputting a battery bulge signal when the detected bulge pressure value is larger than a first bulge pressure threshold value and the duration time is longer than a first bulge duration time;
and continuously detecting the battery outputting the battery bulge signal, and outputting a bulge fault signal when the bulge pressure value is detected to be larger than the second bulge pressure threshold value.
3. The processing system adapted for battery protection as set forth in claim 2, wherein the backup protection module is configured with a backup protection management policy comprising: setting a standby battery;
acquiring the effective residual quantity of the battery of the standby battery, and setting the standby battery as a common battery when the effective residual quantity of the battery is larger than a first effective ratio; setting the standby battery as a temporary use battery when the effective remaining amount of the battery is less than or equal to the first effective ratio and greater than the second effective ratio, and setting the standby battery as an emergency use battery when the effective remaining amount of the battery is less than or equal to the second effective ratio;
when the standby batteries are all common batteries, the power consumption is evenly distributed;
when the standby battery is a common battery, shake loss signals are screened from the common battery, and when a first-level shake loss level signal exists, a standby first-level protection detection signal is output;
when the standby battery is an emergency battery, the emergency battery is subjected to bulge signal screening, and when the emergency battery has a battery bulge signal, a secondary protection detection signal is output; when the emergency battery has a bulge fault signal, a three-level protection detection signal is output.
4. A method of treatment of a treatment system suitable for battery protection according to any one of claims 1-3, characterized in that the treatment method is provided with a pressure detection frame in which a movable ball is arranged for movement within the pressure detection frame; the top, the bottom and the side surfaces in the pressure detection frame are respectively provided with a plurality of shaking pressure detectors which are used for acquiring the pressure value of the movable ball, wherein the side surfaces of the inner wall of the battery case are provided with a plurality of bulge pressure detectors;
the processing method comprises the following steps:
analyzing based on the pressure value detected by the shaking pressure detector to obtain a shaking loss result;
performing bulge fault analysis based on the pressure value detected by the bulge pressure detector to obtain bulge fault results;
judging the effective residual quantity of the battery of the standby battery, analyzing by combining shaking loss and bulge faults, and carrying out protection detection and early warning on the standby battery;
acquiring a pressure value at the bottom of the pressure detection frame in a static state, and setting the pressure value as a bottom reference pressure value;
acquiring a pressure value of the bottom of the pressure detection frame in a use state, setting the pressure value as a bottom detection pressure value, and when the bottom detection pressure value is larger than a bottom reference pressure value, obtaining a difference value of the bottom detection pressure value minus the bottom reference pressure value, and setting the difference value as a bottom pressure difference value; counting the parts of the bottom pressure difference value which are larger than the first pressure threshold value, and setting the parts as the effective bottom pressure detection quantity;
acquiring a pressure value of the side face of the pressure detection frame in a use state, and setting the pressure value as a side face detection pressure value; when the side detection pressure value is larger than the side reference pressure value, calculating a difference value between the side detection pressure value and the side reference pressure value, and setting the difference value as a side pressure difference value; counting the parts of the side pressure difference value which are larger than a second pressure threshold value, and setting the parts as the effective side pressure detection quantity;
acquiring a pressure value of the top of the pressure detection frame in a use state, and setting the pressure value as a top detection pressure value; when the top detection pressure value is larger than the top reference pressure value, calculating a difference value between the top detection pressure value and the top reference pressure value, and setting the difference value as a top pressure difference value; counting the parts of the top pressure difference value which are larger than a third pressure threshold value, and setting the parts as the effective quantity of the top pressure detection;
sequencing the bottom pressure difference values in the effective quantity of bottom pressure detection from large to small, and selecting the bottom pressure difference values of a first proportion before sequencing to add to obtain the total bottom pressure reference quantity; sequencing the side pressure difference values in the side pressure detection effective quantity from large to small, and selecting the side pressure difference values of a first proportion before sequencing to add to obtain the side pressure reference total quantity; sorting the top pressure difference values in the effective quantity of the top pressure detection from large to small, and selecting the top pressure difference values of a first proportion before sorting to add to obtain the total top pressure reference quantity;
acquiring a bottom pressure reference total amount, a side pressure reference total amount and a top pressure reference total amount once every first loss time;
adding the total bottom pressure reference amount, the total side pressure reference amount and the total top pressure reference amount to obtain a shaking loss total amount;
outputting a first-stage shaking loss level signal when the total shaking loss is greater than or equal to a first shaking reference total threshold; outputting a second-level shaking loss level signal when the total shaking loss is greater than or equal to the second shaking reference total threshold and less than the first shaking reference total threshold; outputting a three-level shaking loss level signal when the total shaking loss is smaller than a second shaking reference total threshold, wherein the first shaking reference total threshold is larger than the second shaking reference total threshold;
setting a shaking simulation device, wherein the shaking simulation device comprises a shaking base, a battery assembly simulation unit and a pressure simulation detection frame; installing the battery assembly independent unit and the pressure detection frame on a shaking base, wherein the shaking base is used for driving the battery assembly independent unit and the pressure detection frame to perform omnibearing shaking simulation; the structure of the pressure simulation detection frame is the same as that of the pressure detection frame;
and detecting batteries in the battery assembly simulation unit at each interval of the first simulation time length to obtain a battery fault proportion, setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as a second shaking reference total threshold value when the battery fault proportion is equal to the first fault proportion, and setting the corresponding shaking loss simulation total amount of the pressure simulation detection frame obtained at the moment as the first shaking reference total threshold value when the battery fault proportion is equal to the second fault proportion, wherein the second fault proportion is larger than the first fault proportion, and the obtaining mode of the shaking loss simulation total amount is the same as that of the shaking loss total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310066567.8A CN115810815B (en) | 2023-02-06 | 2023-02-06 | Processing method and system suitable for battery protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310066567.8A CN115810815B (en) | 2023-02-06 | 2023-02-06 | Processing method and system suitable for battery protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115810815A CN115810815A (en) | 2023-03-17 |
| CN115810815B true CN115810815B (en) | 2023-05-05 |
Family
ID=85487552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310066567.8A Active CN115810815B (en) | 2023-02-06 | 2023-02-06 | Processing method and system suitable for battery protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115810815B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526365A (en) * | 2020-11-26 | 2021-03-19 | 武汉飞恩微电子有限公司 | Method, device, storage medium and apparatus for detecting battery state |
| CN112803545A (en) * | 2021-02-04 | 2021-05-14 | 欣旺达电动汽车电池有限公司 | Battery protection circuit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827929B (en) * | 2014-09-22 | 2017-10-10 | 北汽福田汽车股份有限公司 | The control method and device of electric automobile |
| CN209071553U (en) * | 2018-12-28 | 2019-07-05 | 蜂巢能源科技有限公司 | Battery pack bulge detection device, battery management system, vehicle |
| CN110265739B (en) * | 2019-07-05 | 2021-02-02 | Oppo（重庆）智能科技有限公司 | Battery management method, system, terminal device and storage medium |
| CN217740625U (en) * | 2022-05-31 | 2022-11-04 | 黄埔海关技术中心 | New energy automobile battery detecting system |
| CN114976315A (en) * | 2022-06-23 | 2022-08-30 | 东方醒狮储能电池有限公司 | Control method of new energy automobile energy storage battery real-time monitoring safety early warning system |
| CN115586447B (en) * | 2022-12-13 | 2023-04-07 | 中北润良新能源(济宁)股份有限公司 | Ship power battery detection equipment and system |
-
2023
- 2023-02-06 CN CN202310066567.8A patent/CN115810815B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526365A (en) * | 2020-11-26 | 2021-03-19 | 武汉飞恩微电子有限公司 | Method, device, storage medium and apparatus for detecting battery state |
| CN112803545A (en) * | 2021-02-04 | 2021-05-14 | 欣旺达电动汽车电池有限公司 | Battery protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115810815A (en) | 2023-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11215679B2 (en) | Method and apparatus for detecting micro short circuit of battery | |
| CN108931725B (en) | Method and device for detecting battery fault | |
| CN105277888A (en) | Method and apparatus for estimating state of battery | |
| KR20130056284A (en) | Method for determining the life expectancy of at least one battery cell, battery comprising a plurality of battery cells, and motor vehicle | |
| CN113253120B (en) | Battery burst type internal short circuit diagnosis method and device, storage medium and electronic equipment | |
| CN112038716B (en) | Early warning method for thermal runaway of lithium ion battery pack | |
| CN113075563B (en) | Detection method and device for lithium precipitation of power battery and vehicle | |
| CN112644336B (en) | Power battery thermal runaway prediction method and device | |
| KR20180037708A (en) | Method and apparatus for managing battery | |
| CN113255764A (en) | Method, system and device for detecting electrochemical energy storage system fault by using machine learning | |
| CN112622676A (en) | Monitoring method and system for power battery safe charging | |
| CN116125300A (en) | Battery pack abnormality monitoring method and device, electronic equipment and storage medium | |
| CN115810815B (en) | Processing method and system suitable for battery protection | |
| CN113571782A (en) | Battery thermal runaway detection method and device | |
| CN116559757B (en) | Verification method and device for battery lithium-precipitation potential prediction accuracy and electronic equipment | |
| US20240027529A1 (en) | Method and system for detecting lithium precipitation of lithium batteries | |
| CN117491895A (en) | Battery aging abnormality detection method, device and storage medium | |
| CN115980585A (en) | Battery fault detection method and device, computer equipment and storage medium | |
| CN112540301B (en) | Battery detection method, device and storage medium | |
| JP2024502248A (en) | How to sort low voltage defective batteries | |
| KR20190043457A (en) | Apparatus and methof for determining of battery health | |
| CN114970734A (en) | Abnormal battery determination method, abnormal battery determination device, computer equipment and storage medium | |
| CN110661041A (en) | Method and device for diagnosing retired power battery | |
| CN111186337A (en) | Battery fault judging method and device | |
| CN112666477A (en) | Method for determining short circuit in battery, electronic device, and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Processing methods and systems applicable to battery protection Effective date of registration: 20231128 Granted publication date: 20230505 Pledgee: Nanjing Jiangning Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: JIANGSU NANJIXING NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980067858 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |