CN114812684B - Method and system for monitoring internal humidity of power battery system - Google Patents
Method and system for monitoring internal humidity of power battery system Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
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- 238000004891 communication Methods 0.000 claims description 32
- 230000005856 abnormality Effects 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 17
- 238000004590 computer program Methods 0.000 description 16
- 238000003860 storage Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
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- 230000005494 condensation Effects 0.000 description 4
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- 238000007791 dehumidification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/20—Status alarms responsive to moisture
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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
- H01M10/4285—Testing apparatus
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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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Abstract
The invention discloses a method and a system for monitoring the internal humidity of a power battery system, wherein the method comprises the following steps: s1, acquiring the internal humidity of a power battery in real time; s2, comparing the internal humidity of the power battery with a humidity alarm threshold; and S3, when the internal humidity of the power battery is greater than a humidity alarm threshold value, controlling to cut off the charge and discharge of the power battery and sending an alarm instruction. According to the method for monitoring the internal humidity of the power battery system, the internal humidity of the power battery is obtained in real time, the real-time monitoring of the humidity of the power battery system is achieved, and when the humidity is abnormal, the safety of the power battery is guaranteed and unnecessary losses are avoided by sending out an alarm instruction and controlling the power battery to charge and discharge in a cutting-off mode.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a method and a system for monitoring internal humidity of a power battery system.
Background
With the great popularization and the increasing market share of the current electric automobile, the demands of people on the power battery are continuously increased, and the safety and the functions of the power battery system are also increasingly focused. However, the condensation phenomenon is formed in the battery pack when the battery pack is subjected to high and low temperature impact, so that the humidity in the battery system is increased.
In the related art, condensation in the battery pack cannot be completely eradicated, the temperature of cooling water can be reduced, heat preservation cotton is added, and the humidity in the battery pack is reduced, but a set of technology and a method for monitoring the internal humidity are not available.
However, the internal humidity of the battery system is not monitored at present, so that the accurate value of the internal of the battery pack cannot be accurately known, and once the humidity is too high, the water content in the air is increased, so that safety accidents can be caused.
Disclosure of Invention
The invention aims to overcome the defects of the background art and provides a method for monitoring the internal humidity of a power battery system.
In a first aspect, the present application provides a method for monitoring internal humidity of a power battery system, including the steps of:
s1, acquiring the internal humidity of a power battery in real time;
s2, comparing the internal humidity of the power battery with a humidity alarm threshold;
and S3, when the internal humidity of the power battery is greater than a humidity alarm threshold value, controlling to cut off the charge and discharge of the power battery and sending an alarm instruction.
In a first possible implementation manner of the first aspect, in the first aspect, the step S1 is to obtain the internal humidity of the power battery through a humidity sensor, and obtain the internal humidity of the power battery in real time through a communication connection between the bluetooth module and the humidity sensor.
In a second possible implementation manner of the first aspect, according to the first aspect, the step S1 specifically includes the following steps:
s10, acquiring a first temperature average value in a preset period time of the power battery and a second temperature average value in a next preset period time of the power battery;
s11, comparing the second temperature average value with the first temperature average value, and controlling to acquire the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value.
In a third possible implementation manner of the first aspect according to the first aspect, after the step S3, the method further includes the following steps:
s41, acquiring a power battery humidity abnormality fault reason;
and S42, controlling to recover the charge and discharge of the power battery after eliminating the abnormal humidity faults in the power battery.
In a second aspect, the present application provides a power cell system internal humidity monitoring comprising:
the humidity sensor is used for detecting the internal humidity of the power battery;
the Bluetooth module is in communication connection with the humidity sensor and is used for acquiring the internal humidity of the power battery in real time;
the VCU module is in communication connection with the humidity sensor and is used for comparing the internal humidity of the power battery with a humidity alarm threshold value;
the charging and discharging cutting module and the alarm module are both in communication connection with the VCU module, and the VCU module is also used for controlling the cutting of the charging and discharging of the power battery and sending an alarm instruction when the internal humidity of the power battery is greater than a humidity alarm threshold value.
In a first possible implementation manner of the second aspect according to the second aspect, the humidity sensor is connected to the VCU module through CAN communication.
In a second possible implementation manner of the second aspect according to the second aspect, the alarm module is connected to the humidity sensor through an I2C interface.
In a third possible implementation manner of the second aspect according to the second aspect, the alarm module is connected to the humidity sensor by low voltage line communication.
According to a fourth possible implementation manner of the second aspect, the power battery further includes a temperature detection module, the temperature detection module is in communication connection with the VCU, and the VCU is further configured to obtain a first temperature average value in a preset cycle time of the power battery and a second temperature average value in a next preset cycle time of the power battery, compare the second temperature average value with the first temperature average value, and control to obtain the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value.
In a fifth possible implementation manner of the second aspect according to the second aspect, the method further includes:
the humidity abnormal fault cause acquisition module is in communication connection with the comparison module and is used for acquiring the humidity abnormal fault cause of the power battery when the internal humidity of the power battery is greater than a humidity alarm threshold value;
and the charge and discharge recovery module is in communication connection with the VCU module and is also used for recovering the charge and discharge of the power battery after eliminating the abnormal humidity fault of the power battery.
Compared with the prior art, the invention has the following advantages:
according to the method for monitoring the internal humidity of the power battery system, the internal humidity of the power battery is obtained in real time, the real-time monitoring of the humidity of the power battery system is achieved, and when the humidity is abnormal, the safety of the power battery is guaranteed and unnecessary losses are avoided by sending out an alarm instruction and controlling the power battery to charge and discharge in a cutting-off mode.
Drawings
FIG. 1 is a flow chart of a method for monitoring the internal humidity of a power cell system according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method of monitoring the internal humidity of a power battery system according to an embodiment of the present invention;
FIG. 3 is a functional block diagram of a system for monitoring the internal humidity of a power cell system according to an embodiment of the present invention;
fig. 4 is a communication schematic diagram of an internal humidity monitoring system of a power battery system according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the described embodiments. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or arrangement of functions, and any functional block or arrangement of functions may be implemented as a physical entity or a logical entity, or a combination of both.
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to understand the invention better.
Note that: the examples to be described below are only one specific example, and not as limiting the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, sequences, etc. Those skilled in the art can, upon reading the present specification, make and use the concepts of the invention to construct further embodiments not mentioned in the specification.
At present, the power battery is widely applied to industries such as electric automobiles, the safety performance of the power battery plays a very important role, the existing power battery is charged and discharged to release heat in the operation process, the relative temperature is low when the operation is finished, the inside of the box body of the power battery is impacted by high and low temperature, condensation water drops can be formed on the inner wall surface of the box body of the power battery, the humidity inside the power battery is increased, the humidity is too high, the stability of the internal electric connection performance of the power battery can be influenced, and even safety accidents can be caused by short circuits.
In view of this, please refer to fig. 1, the present application provides a method for monitoring the internal humidity of a power battery system, comprising the following steps:
s1, acquiring the internal humidity of a power battery in real time;
s2, comparing the internal humidity of the power battery with a humidity alarm threshold;
and S3, when the internal humidity of the power battery is greater than a humidity alarm threshold value, controlling to cut off the charge and discharge of the power battery and sending an alarm instruction.
According to the method for monitoring the internal humidity of the power battery system, the internal humidity of the power battery is obtained in real time, so that the real-time monitoring of the humidity of the power battery system is realized, driving information can be conveniently obtained by electric automobile drivers or safety performance data of the electric automobile can be timely obtained by electric automobile maintainers; when the humidity is abnormal, the power battery is ensured to be safe by sending an alarm instruction and controlling the power battery to be charged and discharged in a cut-off mode, so that safety accidents such as short-circuit explosion and the like caused by the abnormal humidity are avoided.
In an embodiment, step S1 monitors the internal humidity of the power battery by adding a humidity sensor in the power battery box, and obtains the internal humidity of the power battery in real time through communication connection between the bluetooth module and the humidity sensor, and a user can obtain the internal humidity of the power battery monitored by the humidity sensor in real time through communication connection between a device with bluetooth communication function such as a mobile phone and the bluetooth module, so as to realize the effect of real-time monitoring.
In an embodiment, please refer to fig. 2, the step S1 specifically includes the following steps:
s10, acquiring a first temperature average value in a preset period time of the power battery and a second temperature average value in a next preset period time of the power battery;
s11, comparing the second temperature average value with the first temperature average value, and controlling to acquire the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value.
Typically the discharge time of the power cell is greater than the charge time of the power cell. When the discharging time of the power battery is greater than the charging time of the power battery, the preset period time is 2/3-1 times of the discharging time of the power battery, when the discharging time of the power battery is less than the charging time of the power battery, the preset period time is 2/3-1 times of the charging time of the power battery, the preset period time is a period of time before the current moment, for example, when an electric bus starts to run and starts, the humidity in a power battery box body is obtained, the charging time of the electric bus is 3 hours, the average value difference of the temperatures of the power battery box body in the two time periods of the first 2 hours and the first 2 hours is obtained, and if the first average value of the temperatures in the battery box body of the first 2 hours is less than the second average value of the temperatures of the first 2 hours, the condition of high and low temperature impact in the battery box body is primarily judged, and condensation is possibly generated. The battery box body is provided with a primary screening effect, so that the situation that the electric automobile is in a weak Bluetooth communication environment, the humidity information in the battery box body cannot be effectively obtained in real time, and humidity faults are caused to occur and cannot be timely handled is avoided. According to the method, the high-low temperature impact condition in the power battery box body is directly acquired through the acquisition mode of the temperature average value in the two preset cycle time, the high-low temperature impact condition in the power battery box body caused by the charging and discharging of the power battery or the environmental temperature difference of the power battery is effectively and accurately acquired, and the precondition caused by the humidity abnormality can be pre-acquired, and the humidity abnormality real-time monitoring method and the humidity abnormality alarming and charging and discharging cutting function are combined, so that the more comprehensive and effective systematic protection monitoring effect is achieved on the humidity abnormality in the power battery.
In an embodiment, after the step S3, the method further includes the following steps:
s41, acquiring a power battery humidity abnormality fault reason;
and S42, controlling to recover the charge and discharge of the power battery after eliminating the abnormal humidity faults in the power battery.
In an embodiment, the step S41 specifically includes the following steps:
by arranging the humidity sensor at different positions of the power battery box body, the possible reasons of humidity abnormality fault are acquired according to the position information of the humidity sensor which sends out the humidity abnormality information. For example, if a humidity sensor at the seal of the power battery box body sends out abnormal humidity fault information, it is judged that a seal damage block fault possibly exists at the seal. If all the humidity-sensitive sensors below a certain height position of the power battery box body send out abnormal humidity fault information, judging that the power battery box body possibly has wading conditions; if the humidity value of the humidity sensor at different heights in the power battery box body gradually increases along with the decrease of the height in the power battery, the condition that condensed water vapor exists in the power battery box body is judged to happen.
In one embodiment, the step S42 specifically includes the following steps:
step S421, controlling and executing different humidity abnormality fault elimination methods according to the acquired different power battery humidity abnormality fault reasons;
and step 422, after the different humidity abnormal fault elimination methods are executed to eliminate faults, the normal charge and discharge functions of the recovered power battery are obtained.
In an embodiment, the step S421 is specifically implemented as:
when the power battery box body has wading faults, controlling and overhauling the electric functions of all battery units and electric connectors of the power battery;
when the sealing performance of the sealing element of the power battery box body is faulty, the sealing element is controlled to be replaced;
when condensed water vapor exists in the power battery box body, the dehumidification of the interior of the power battery box body is controlled.
The method for removing the abnormal humidity faults in the power battery box body in the modes of controlling maintenance, replacing and dehumidifying and the like can also be realized by the modes of manually maintaining, replacing and dehumidifying by maintenance personnel.
Based on the same inventive concept, please refer to fig. 3, the present application provides a power battery system internal humidity monitoring, comprising:
a humidity sensor 200 for detecting the internal humidity of the power cell;
the Bluetooth module 100 is in communication connection with the humidity sensor and is used for acquiring the internal humidity of the power battery in real time;
the VCU module 400 is in communication connection with the humidity sensor and is used for comparing the internal humidity of the power battery with a humidity alarm threshold;
the charge-discharge cut-off module 500 and the alarm module 300 are both in communication connection with the VCU module, and the VCU module is further configured to control cut-off of the charge-discharge of the power battery and issue an alarm command when the internal humidity of the power battery is greater than a humidity alarm threshold.
The utility model provides an inside humidity detection system of power battery system has the function of monitoring and unusual warning, easily installs, effectively avoids the emergence of the incident that power battery humidity is unusual to cause.
In one embodiment, the humidity sensor is in communication with the VCU module via a CAN.
In one embodiment, the alarm module is connected with the humidity sensor through an I2C interface.
In one embodiment, the alarm module is connected to the humidity sensor via a low voltage line communication.
In an embodiment, referring to fig. 4, the alarm module is an alarm switch.
Referring to fig. 4, in the internal humidity monitoring system of the power battery system provided by the application, components such as a humidity sensor, a bluetooth module, an alarm switch device and the like are added in the battery system, the bluetooth module is connected with the humidity sensor through an I2C port, and a mobile terminal obtains data information of the humidity sensor through bluetooth; the alarm switch device is communicated with the humidity sensor through a low-voltage line, then the communication with the VCU is realized through CAN network communication, information is collected, and finally the information is fed back to the whole vehicle, the information of the upper computer interface is displayed to a user, when the set value is abnormal, a fault code is reported on the upper computer interface, the alarm switch is triggered, and the charging and discharging functions are cut off; and automatically recovering after the fault is clear.
In an embodiment, the power battery further comprises a temperature detection module, the temperature detection module is in communication connection with the VCU, the VCU is further configured to obtain a first temperature average value in a preset cycle time of the power battery and a second temperature average value in a next preset cycle time of the power battery, compare the second temperature average value with the first temperature average value, and control to obtain the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value.
In an embodiment, further comprising:
the humidity abnormal fault cause acquisition module is in communication connection with the comparison module and is used for acquiring the humidity abnormal fault cause of the power battery when the internal humidity of the power battery is greater than a humidity alarm threshold value;
and the charge and discharge recovery module is in communication connection with the VCU module and is also used for recovering the charge and discharge of the power battery after eliminating the abnormal humidity fault of the power battery.
Based on the same inventive concept, the embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements all or part of the method steps of the above method.
The present invention may be implemented by implementing all or part of the above-described method flow, or by instructing the relevant hardware by a computer program, which may be stored in a computer readable storage medium, and which when executed by a processor, may implement the steps of the above-described method embodiments. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
Based on the same inventive concept, the embodiments of the present application further provide an electronic device, including a memory and a processor, where the memory stores a computer program running on the processor, and when the processor executes the computer program, the processor implements all or part of the method steps in the above method.
The processor may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being a control center of the computer device, and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the handset. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid-state storage device.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, server, 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 (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
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.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The method for monitoring the internal humidity of the power battery system is characterized by comprising the following steps of:
s1, acquiring the internal humidity of a power battery in real time;
s2, comparing the internal humidity of the power battery with a humidity alarm threshold;
s3, when the internal humidity of the power battery is greater than a humidity alarm threshold, controlling to cut off the charge and discharge of the power battery and sending an alarm instruction;
the step S1 specifically comprises the following steps:
s10, acquiring a first temperature average value in a preset period time of the power battery and a second temperature average value in a next preset period time of the power battery;
s11, comparing the second temperature average value with the first temperature average value, and controlling to acquire the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value;
after the step S3, the method further includes the following steps:
s41, acquiring a power battery humidity abnormality fault reason;
s42, controlling and eliminating abnormal humidity faults in the power battery and then recovering the charge and discharge of the power battery;
the step S41 specifically includes the following steps:
by arranging the humidity sensor at different positions of the power battery box body, the possible reasons of humidity abnormality fault are acquired according to the position information of the humidity sensor which sends out the humidity abnormality information.
2. The method for monitoring the internal humidity of the power battery system according to claim 1, wherein the step S1 is to obtain the internal humidity of the power battery through a humidity sensor, and to obtain the internal humidity of the power battery in real time through a communication connection between the bluetooth module and the humidity sensor.
3. A power cell system internal humidity monitoring system, comprising:
the humidity sensor is used for detecting the internal humidity of the power battery;
the Bluetooth module is in communication connection with the humidity sensor and is used for acquiring the internal humidity of the power battery in real time;
the VCU module is in communication connection with the humidity sensor and is used for comparing the internal humidity of the power battery with a humidity alarm threshold value;
the charging and discharging cutting module and the alarm module are both in communication connection with the VCU module, and the VCU module is also used for controlling the cutting of the charging and discharging of the power battery and sending an alarm instruction when the internal humidity of the power battery is greater than a humidity alarm threshold value;
the temperature detection module is in communication connection with the VCU module, and the VCU module is further used for acquiring a first temperature average value in a preset period time of the power battery and a second temperature average value in a next preset period time of the power battery, comparing the second temperature average value with the first temperature average value, and controlling to acquire the internal humidity of the power battery in real time when the second temperature average value is lower than the first temperature average value;
further comprises:
the humidity abnormal fault cause acquisition module is in communication connection with the VCU module and is used for acquiring the humidity abnormal fault cause of the power battery when the internal humidity of the power battery is greater than a humidity alarm threshold value;
the charge-discharge recovery module is in communication connection with the VCU module and is also used for recovering the charge and discharge of the power battery after eliminating the abnormal humidity fault of the power battery;
by arranging the humidity sensor at different positions of the power battery box body, the possible reasons of humidity abnormality fault are acquired according to the position information of the humidity sensor which sends out the humidity abnormality information.
4. The power cell system internal humidity monitoring system of claim 3 wherein said humidity sensor is communicatively coupled to said VCU module via a CAN.
5. The power cell system internal humidity monitoring system of claim 3 wherein said alarm module is connected to said humidity sensitive sensor via an I2C interface.
6. The system for monitoring the internal humidity of a power cell system according to claim 3, wherein said alarm module is connected to said humidity sensor via a low voltage line communication.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
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