CN113771627A - Power battery pack air tightness monitoring method and device and electric automobile - Google Patents
Power battery pack air tightness monitoring method and device and electric automobile Download PDFInfo
- Publication number
- CN113771627A CN113771627A CN202010504518.4A CN202010504518A CN113771627A CN 113771627 A CN113771627 A CN 113771627A CN 202010504518 A CN202010504518 A CN 202010504518A CN 113771627 A CN113771627 A CN 113771627A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- power battery
- pressure value
- monitoring
- change rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
- 230000032683 aging Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the invention provides a method and a device for monitoring air tightness of a power battery pack and an electric automobile. The method is applied to a gas tightness monitoring controller, and comprises the following steps: acquiring the change rate of the pressure value within a preset time length of the power battery pack with the pressure value reaching a preset pressure value; and generating early warning information according to the change rate. According to the scheme, whether the air tightness of the power battery pack in the power battery pack needs to be pre-warned or not is judged by monitoring the change rate of the pressure value of the power battery pack within the preset time, so that the air tightness risk caused by the use aging of the power battery pack is avoided, and the use safety and reliability of the electric automobile are improved.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a method and a device for monitoring air tightness of a power battery pack and an electric automobile.
Background
Currently, with the development of economy, the country pays more and more attention to the problem of environmental protection. Compared with the common fuel oil vehicle, the new energy electric vehicle has the characteristics of low emission, low pollution and the like, is beneficial to the construction of an environment-friendly society in China, and encourages people to purchase the electric vehicle through various subsidy policies, so more and more people tend to select the electric vehicle. The power battery system is used as a power source of the electric automobile, the safety of the power battery system is the central importance of the whole automobile, and is an important bottleneck of the popularization of the electric automobile, and the IP67 (protection safety level) is used as an important index of the safety of a battery pack and is the center of research and development investment of various whole automobile factories.
After the power battery pack used by the electric automobile is used for a long time, certain aging can occur, and the safety of the electric automobile in use can be influenced by the air tightness risk caused by the aging of the battery pack.
Disclosure of Invention
The invention aims to provide a method and a device for monitoring air tightness of a power battery pack and an electric automobile, so as to solve the problem that the safety of the electric automobile is influenced by air tightness risk caused by aging of the power battery pack.
In order to solve the technical problems, the technical scheme of the invention is as follows:
according to one aspect of the invention, a method for monitoring air tightness of a power battery pack is provided, which is applied to an air tightness monitoring controller, and comprises the following steps:
acquiring the change rate of the pressure value within a preset time length of the power battery pack with the pressure value reaching a preset pressure value;
and generating early warning information according to the change rate.
Further, obtain the power battery package that the pressure value reaches preset pressure value, before the rate of change of the pressure value within the preset duration, still include:
acquiring an instruction for inflating and pressurizing the power battery pack;
controlling an inflating device to inflate and pressurize the power battery pack according to the instruction;
and if the pressure value reaches a preset pressure value, stopping inflating and pressurizing the power battery pack.
Further, acquiring an instruction for inflating and pressurizing the power battery pack, comprising:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
Further, according to the change rate, generating early warning information, including:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
According to another aspect of the present invention, there is also provided a device for monitoring airtightness of a power battery pack, which is applied to an airtightness monitoring controller, the device including:
the first acquisition module is used for acquiring the change rate of the pressure value of the power battery pack with the pressure value reaching a preset pressure value within a preset time;
and the processing module is used for generating early warning information according to the change rate.
Further, the apparatus further comprises:
the second acquisition module is used for acquiring an instruction of inflating and pressurizing the power battery pack;
the control module is used for controlling the inflating device to inflate and pressurize the power battery pack according to the instruction; and also used for
And if the pressure value reaches a preset pressure value, controlling the inflating device to stop inflating and pressurizing the power battery pack.
Further, the second obtaining module is specifically configured to:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
Further, the processing module is specifically configured to:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
According to another aspect of the invention, an electric automobile is also provided, which comprises an air tightness monitoring controller, and an air charging device and an atmospheric pressure sensor which are electrically connected with the air tightness monitoring controller, wherein the air tightness monitoring controller comprises the air tightness monitoring device of the power battery pack.
According to another aspect of the invention, there is also provided a storage medium having stored thereon a computer program which, when executed by a processor, performs the method as described above.
The scheme of the invention at least comprises the following beneficial effects:
according to the scheme, whether the air tightness of the power battery pack in the power battery pack needs to be pre-warned or not is judged by monitoring the change rate of the pressure value of the power battery pack within the preset time, so that the air tightness risk caused by the use aging of the power battery pack is avoided, and the use safety and reliability of the electric automobile are improved.
Drawings
Fig. 1 is a step diagram of a method for monitoring the airtightness of a power battery pack according to the present invention;
FIG. 2 is a device connection diagram of an air tightness monitoring device of a power battery pack according to the invention;
fig. 3 is a working flow chart of an airtightness monitoring method for a power battery pack according to the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a method for monitoring air tightness of a power battery pack, which is applied to an air tightness monitoring controller, and the method includes:
s400, acquiring the change rate of the pressure value of the power battery pack with the pressure value reaching the preset pressure value within the preset time;
and S500, generating early warning information according to the change rate.
According to the scheme, whether the air tightness of the power battery pack in the power battery pack needs to be pre-warned or not is judged by monitoring the change rate of the pressure value of the power battery pack within the preset time, so that the air tightness risk caused by the use aging of the power battery pack is avoided, and the use safety and reliability of the electric automobile are improved.
In an optional embodiment of the present invention, the step S400 of obtaining the power battery pack with the pressure value reaching the preset pressure value further includes, before the change rate of the pressure value within the preset time period:
s100, acquiring an instruction for inflating and pressurizing the power battery pack;
s200, controlling an inflating device to inflate and pressurize the power battery pack according to the instruction;
and S300, if the pressure value reaches a preset pressure value, stopping inflating and pressurizing the power battery pack.
The method comprises the steps of firstly obtaining an instruction of inflating and pressurizing the power battery pack, monitoring the air tightness of the power battery pack according to the requirements of a user, meeting the requirements of the user and being beneficial to improving the user experience. And the power battery pack is inflated and pressurized until the pressure value reaches the preset pressure value, so that the monitoring effectiveness and the method accuracy are improved.
In an optional embodiment of the present invention, the step S100 of obtaining an instruction for inflating and pressurizing the power battery pack includes:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
After the vehicle is started, the device automatically generates an instruction for inflating and pressurizing the power battery pack, so that the air tightness of the power battery pack can be monitored in real time in the running process of the vehicle, and the running safety of a user is guaranteed; when a user needs the device, the user can also send a request to the second acquisition module, so that the air tightness of the power battery pack is obtained, and the device is flexible and convenient and is beneficial to improving the applicability of the device.
In an optional embodiment of the present invention, the step S500 generates the warning information according to the change rate, including:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
The first preset value and the second preset value can be preset according to user requirements or actual performance conditions of the electric automobile, so that monitoring accuracy is improved; first early warning information and second early warning information can set up the grade according to the quality of the gas tightness of power battery package, for example first early warning information can only the early warning, reminds the user, can include control command in the second early warning information, if carry out the operation that cuts off the power supply and cut off highly compressed to the car, the suggestion user need go to near 4S shop and maintain, improve and use the reliability of car security and device.
As shown in fig. 2, an embodiment of the present invention provides an airtightness monitoring apparatus for a power battery pack, which is applied to an airtightness monitoring controller, and the apparatus includes:
the first acquisition module is used for acquiring the change rate of the pressure value of the power battery pack with the pressure value reaching a preset pressure value within a preset time;
and the processing module is used for generating early warning information according to the change rate.
According to the scheme, whether the air tightness of the power battery pack in the power battery pack needs to be pre-warned or not is judged by monitoring the change rate of the pressure value of the power battery pack within the preset time, so that the air tightness risk caused by the use aging of the power battery pack is avoided, and the use safety and reliability of the electric automobile are improved.
In an optional embodiment of the invention, the apparatus further comprises:
the second acquisition module is used for acquiring an instruction of inflating and pressurizing the power battery pack;
the control module is used for controlling the inflating device to inflate and pressurize the power battery pack according to the instruction; and also used for
And if the pressure value reaches a preset pressure value, controlling the inflating device to stop inflating and pressurizing the power battery pack.
The method comprises the steps of firstly obtaining an instruction of inflating and pressurizing the power battery pack, monitoring the air tightness of the power battery pack according to the requirements of a user, meeting the requirements of the user and being beneficial to improving the user experience. And the power battery pack is inflated and pressurized until the pressure value reaches the preset pressure value, so that the monitoring effectiveness and the method accuracy are improved.
In an optional embodiment of the present invention, the second obtaining module is specifically configured to:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
After the vehicle is started, the device automatically generates an instruction for inflating and pressurizing the power battery pack, so that the air tightness of the power battery pack can be monitored in real time in the running process of the vehicle, and the running safety of a user is guaranteed; when a user needs the device, the user can also send a request to the second acquisition module, so that the air tightness of the power battery pack is obtained, and the device is flexible and convenient and is beneficial to improving the applicability of the device.
In an optional embodiment of the present invention, the processing module is specifically configured to:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
The first preset value and the second preset value can be preset according to user requirements or actual performance conditions of the electric automobile, so that monitoring accuracy is improved; first early warning information and second early warning information can set up the grade according to the quality of the gas tightness of power battery package, for example first early warning information can only the early warning, reminds the user, can include control command in the second early warning information, if carry out the operation that cuts off the power supply and cut off highly compressed to the car, the suggestion user need go to near 4S shop and maintain, improve and use the reliability of car security and device.
It should be noted that the apparatus is an apparatus corresponding to the method described in fig. 1, and all the implementations of the illustrated method are applicable to the embodiment of the apparatus, and the same technical effects can be achieved.
The embodiment of the invention also provides an electric automobile, which comprises an air tightness monitoring controller, an inflation device and an atmospheric pressure sensor, wherein the inflation device and the atmospheric pressure sensor are electrically connected with the air tightness monitoring controller, and the air tightness monitoring controller comprises the air tightness monitoring device of the power battery pack shown in the figure 2. All the embodiments of the airtightness monitoring device for the power battery pack shown in fig. 2 are applicable to the embodiment of the electric vehicle, and the same technical effects can be achieved.
An embodiment of the present invention also proposes a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method for monitoring the airtightness of a power battery pack according to fig. 1. All the embodiments of the method for monitoring the airtightness of the power battery pack shown in fig. 1 are applicable to the embodiment of the storage medium, and the same technical effects can be achieved.
As shown in fig. 3, a work flow of the method for monitoring airtightness of a power battery pack according to an embodiment of the present invention is as follows: after the vehicle normally starts, the storage battery supplies power to the battery management system BMS and the air tightness monitoring controller, at the moment, the BMS and the air tightness monitoring controller start to work, the air tightness monitoring controller sends an instruction to control the inflation device to start inflation and pressurization, the atmospheric pressure sensor monitors the pressure value in real time and sends the pressure value to the air tightness monitoring controller in real time, when a preset value (a calibrated pressure value) is reached, the air tightness monitoring controller sends an instruction to close the inflation device, the atmospheric pressure sensor continuously monitors the pressure value in real time and sends the pressure value to the air tightness monitoring controller in real time, the air tightness monitoring controller inputs signals according to the signals, and the air tightness in the battery pack is monitored in real time. When the change rate of the pressure value in the battery pack is not large, if the change rate is not larger than a first preset value a and not larger than a second preset value b, the air tightness monitoring controller feeds back an early warning signal to the BMS, the BMS reports the early warning signal to the instrument to display early warning information, at the moment, the vehicle can run, and the instrument displays the early warning information to prompt a user to go to a nearby 4S store for inspection; when the change rate of the pressure value in the battery pack is large, if the change rate is larger than a second preset value b, the air tightness monitoring controller feeds back a fault signal to the BMS, the BMS reports the fault signal to the instrument to display fault information, and the operation of powering off and powering off high voltage is executed, so that a user is prompted to go to a nearby 4S shop for maintenance; the gas tightness monitoring controller sends the early warning information to the instrument for display, so that a user can visually see the early warning information and then process the early warning information, or when a driver is inconvenient to watch, the gas tightness monitoring controller can also send the early warning information to a preset user terminal, the driver can be conveniently reminded to use, or the gas tightness monitoring controller can also send the early warning information to the instrument and the user terminal simultaneously, the driver is ensured to be capable of receiving the early warning information, and the driving safety is improved. In addition, the user can inquire the air tightness of the battery pack in real time through a terminal, such as a mobile phone, a computer and the like. At the moment, a user sends a request for monitoring the air tightness of the power battery pack to the air tightness monitoring controller through the terminal, the remote information processor TBOX sends the request to the BMS, the BMS and the air tightness monitoring controller start to work, the air tightness monitoring controller sends an instruction to control the inflating device to start inflating and pressurizing, the atmospheric pressure sensor monitors the pressure value in real time and sends the pressure value to the air tightness monitoring controller in real time, and when the preset value is reached, the air tightness monitoring controller sends an instruction to close the inflating device, the atmospheric pressure sensor continuously monitors the pressure value in real time and sends the pressure value to the air tightness monitoring controller in real time, the air tightness monitoring controller calculates the atmospheric pressure change rate in the battery pack within t minutes (t is a preset value) according to the input of the signals, when the change rate of the pressure value in the battery pack is small, if the change rate of the pressure value is smaller than a first preset value a, the air tightness monitoring controller can edit a green feedback result and send the green feedback result to the user terminal; when the change rate of the pressure value in the battery pack is not large, and if the change rate of the pressure value is not larger than a first preset value a and not larger than a second preset value b, the air tightness monitoring controller can edit a yellow feedback result and send the yellow feedback result to the user terminal to prompt the user that the vehicle can run but needs to go to a nearby 4S store for inspection; when the change rate of the pressure value in the battery pack is large, if the change rate is larger than a second preset value b, the air tightness monitoring controller can edit a red feedback result and send the red feedback result to the user terminal, and the BMS executes the operation of powering off and powering off the high voltage, so that the vehicle cannot run and needs to go to a nearby 4S shop for maintenance. And the feedback result is fed back to the BMS through a controller area network CAN signal, the BMS feeds back the result to the TBOX through the CAN signal, and the TBOX feeds back the result to the user terminal through a network signal. And the feedback result is edited by adopting different color grades, so that a user can visually know the air tightness of the vehicle power battery pack.
The invention achieves the purposes of monitoring the air tightness of the power battery pack in real time and early warning by mainly adding an air tightness monitoring controller, an air charging device, an atmospheric pressure sensor and the like, and realizing linkage with an original battery management system BMS, a combination instrument system ICM, a remote information processor TBOX and the like on the vehicle. On the original safety level of the vehicle, the safety level of the whole vehicle is higher than the first floor by certain cost and technical investment. The invention can improve the early warning capability of the safety of the whole vehicle, avoid safety risks and simultaneously add a user remote query function so as to achieve the aims of more intellectualization and humanization.
The invention can not only improve the early warning capability of the safety of the whole vehicle, but also ensure the safety of the whole life cycle of the vehicle, and particularly avoid the air tightness risk caused by the use aging of the battery pack in the later use stage of the vehicle.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The method for monitoring the air tightness of the power battery pack is applied to an air tightness monitoring controller, and comprises the following steps:
acquiring the change rate of the pressure value within a preset time length of the power battery pack with the pressure value reaching a preset pressure value;
and generating early warning information according to the change rate.
2. The method for monitoring the airtightness of the power battery pack according to claim 1, wherein the step of acquiring the power battery pack with the pressure value reaching the preset pressure value further comprises, before the change rate of the pressure value within the preset time period:
acquiring an instruction for inflating and pressurizing the power battery pack;
controlling an inflating device to inflate and pressurize the power battery pack according to the instruction;
and if the pressure value reaches a preset pressure value, stopping inflating and pressurizing the power battery pack.
3. The method for monitoring the airtightness of the power battery pack according to claim 2, wherein the step of obtaining an instruction for pressurizing the power battery pack includes:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
4. The method for monitoring the airtightness of the power battery pack according to claim 3, wherein generating warning information according to the change rate includes:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
5. The utility model provides a gas tightness monitoring devices of power battery package which characterized in that is applied to gas tightness monitoring control ware, the device includes:
the first acquisition module is used for acquiring the change rate of the pressure value of the power battery pack with the pressure value reaching a preset pressure value within a preset time;
and the processing module is used for generating early warning information according to the change rate.
6. The device for monitoring the airtightness of a power battery pack according to claim 5, further comprising:
the second acquisition module is used for acquiring an instruction of inflating and pressurizing the power battery pack;
the control module is used for controlling the inflating device to inflate and pressurize the power battery pack according to the instruction; and also used for
And if the pressure value reaches a preset pressure value, controlling the inflating device to stop inflating and pressurizing the power battery pack.
7. The tightness monitoring device of the power battery pack according to claim 6, wherein the second obtaining module is specifically configured to:
after the vehicle is started, generating a command for inflating and pressurizing the power battery pack; or,
and receiving a request for monitoring the air tightness of the power battery pack sent by a user terminal, and generating an instruction for inflating and pressurizing the power battery pack according to the request.
8. The device for monitoring the airtightness of a power battery pack according to claim 7, wherein the processing module is specifically configured to:
if the change rate is greater than or equal to a first preset value and less than or equal to a second preset value, first early warning information is sent; or,
if the change rate is larger than a second preset value, second early warning information is sent; or,
and if the change rate is smaller than a first preset value, generating a feedback result and sending the feedback result.
9. An electric vehicle comprising an air-tightness monitoring controller, and an air charging device and an atmospheric pressure sensor electrically connected with the air-tightness monitoring controller, wherein the air-tightness monitoring controller comprises the air-tightness monitoring device of the power battery pack according to any one of claims 5 to 8.
10. A storage medium, having stored thereon a computer program which, when executed by a processor, performs the method of any one of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010504518.4A CN113771627A (en) | 2020-06-05 | 2020-06-05 | Power battery pack air tightness monitoring method and device and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010504518.4A CN113771627A (en) | 2020-06-05 | 2020-06-05 | Power battery pack air tightness monitoring method and device and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113771627A true CN113771627A (en) | 2021-12-10 |
Family
ID=78834199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010504518.4A Pending CN113771627A (en) | 2020-06-05 | 2020-06-05 | Power battery pack air tightness monitoring method and device and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113771627A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206067536U (en) * | 2016-10-08 | 2017-04-05 | 北京新能源汽车股份有限公司 | Power battery system safety monitoring system and electric automobile |
| CN107031432A (en) * | 2016-11-25 | 2017-08-11 | 北京新能源汽车股份有限公司 | Automobile battery system, automobile and control method of automobile battery system |
| CN107878204A (en) * | 2016-09-30 | 2018-04-06 | 长城汽车股份有限公司 | Hermetization testing method, system and the vehicle of battery bag |
| US20190033164A1 (en) * | 2017-07-31 | 2019-01-31 | Nio Usa, Inc. | Systems and methods for diagnosing seal integrity in a battery |
| DE102018210975A1 (en) * | 2018-07-04 | 2020-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Battery management system for a high-voltage battery of a motor vehicle, high-voltage battery and motor vehicle |
| CN111114328A (en) * | 2020-02-27 | 2020-05-08 | 湖北亿纬动力有限公司 | Thermal runaway early warning method, device and system for power storage battery of electric automobile |
-
2020
- 2020-06-05 CN CN202010504518.4A patent/CN113771627A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878204A (en) * | 2016-09-30 | 2018-04-06 | 长城汽车股份有限公司 | Hermetization testing method, system and the vehicle of battery bag |
| CN206067536U (en) * | 2016-10-08 | 2017-04-05 | 北京新能源汽车股份有限公司 | Power battery system safety monitoring system and electric automobile |
| CN107031432A (en) * | 2016-11-25 | 2017-08-11 | 北京新能源汽车股份有限公司 | Automobile battery system, automobile and control method of automobile battery system |
| US20190033164A1 (en) * | 2017-07-31 | 2019-01-31 | Nio Usa, Inc. | Systems and methods for diagnosing seal integrity in a battery |
| DE102018210975A1 (en) * | 2018-07-04 | 2020-01-09 | Bayerische Motoren Werke Aktiengesellschaft | Battery management system for a high-voltage battery of a motor vehicle, high-voltage battery and motor vehicle |
| CN111114328A (en) * | 2020-02-27 | 2020-05-08 | 湖北亿纬动力有限公司 | Thermal runaway early warning method, device and system for power storage battery of electric automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6472879B2 (en) | Method for diagnosing a battery of a vehicle and a system thereof | |
| CN105437994A (en) | Mobile charging vehicle electrical system used for rescuing and control method for mobile charging vehicle electrical system | |
| CN109484242A (en) | A kind of mobile charging system and method based on extended-range electric vehicle exploitation | |
| KR20130067573A (en) | Apparatus and method charging mobile for using vehicle usign usb port | |
| CN205015731U (en) | Remote diagnosis service equipment and remote diagnosis service system of car | |
| CN110194137B (en) | Vacuum pump temperature control method and device, vehicle and storage medium | |
| CN112460479A (en) | Detection method, device, medium and system for hydrogen cylinder of hydrogen energy automobile and automobile | |
| CN113771627A (en) | Power battery pack air tightness monitoring method and device and electric automobile | |
| CN206210064U (en) | A kind of vehicle-mounted gas leakage alarming device and apply its automobile | |
| CN102050028B (en) | Vehicle-mounted power management device and method | |
| CN204188973U (en) | By the system of OBD-II vehicle diagnosis interface intelligent management mobile unit | |
| CN205265276U (en) | Use intelligent movement charging system of internet | |
| CN204463379U (en) | A kind of intelligent vehicle natural gas leaking phonetic alarm device | |
| CN204576251U (en) | A kind of real-time bus remote monitoring and fault feedback device | |
| CN104590088A (en) | Mobile intelligent service maintenance vehicle | |
| CN209541997U (en) | Tyre pressure sensor working environment simulation system | |
| CN209182697U (en) | A kind of fracturing unit truck monitoring system | |
| CN209111940U (en) | Vehicular meter and vehicle | |
| KR20120108360A (en) | Monitoring system for power source of vehicle | |
| CN206485444U (en) | Electric car low battery retinue device | |
| CN206664173U (en) | A kind of system for detecting tire pressure based on bluetooth 4.0 | |
| CN205374005U (en) | Analogue means of on -vehicle light modulator | |
| CN206020627U (en) | Vehicle electronic device and automobile | |
| CN205524072U (en) | Take car emergency power source of air pump function | |
| CN204547879U (en) | A kind of intelligent movable services and repairs car |
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 |