CN115195480A - Electric vehicle thermal runaway alarm system and alarm method thereof - Google Patents
Electric vehicle thermal runaway alarm system and alarm method thereof Download PDFInfo
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- CN115195480A CN115195480A CN202210847513.0A CN202210847513A CN115195480A CN 115195480 A CN115195480 A CN 115195480A CN 202210847513 A CN202210847513 A CN 202210847513A CN 115195480 A CN115195480 A CN 115195480A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- 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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- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses an electric automobile thermal runaway alarm system and an alarm method thereof, wherein the alarm system comprises: the system comprises a battery module, a whole vehicle control unit, a sound large screen, a TBOX, a vehicle networking platform, a mobile phone client, a danger warning lamp and a control unit thereof, and a new energy vehicle safety monitoring platform, wherein a user is prompted to be far away from a vehicle and a high-voltage system is controlled to be powered off according to a thermal runaway state and vehicle state information such as vehicle speed, high-voltage power-on and the like; the thermal runaway alarm method provides a method for notifying a user of the vehicle thermal runaway risk at the first time in a remote alarm mode, and reports vehicle state information to a new energy automobile safety monitoring platform, so that a basis is provided for follow-up thermal runaway problem troubleshooting.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to an electric automobile thermal runaway alarm system and an alarm method thereof.
Background
With the continuous development of electric automobile technology, electric automobiles are more and more popularized, but the spontaneous combustion phenomenon of electric automobiles happens occasionally, people pay more and more attention to the safety of electric automobiles, and the realization of thermal runaway detection and alarm of electric automobiles is more and more important. The literature discloses a power battery thermal runaway early warning method, a power battery thermal runaway early warning device, electronic equipment and a medium. The power battery thermal runaway early warning method comprises the following steps: determining the thermal runaway grade of the power battery according to the battery voltage, the battery temperature and the battery expansion force; and performing thermal runaway early warning on the power battery according to the thermal runaway grade of the power battery. On the basis of the traditional thermal runaway early warning according to the battery voltage and the battery temperature, the thermal runaway grade is determined according to the battery voltage, the battery temperature and the battery expansion force, and then the corresponding thermal runaway early warning is carried out according to the grade. The method can effectively judge whether the thermal runaway of the power battery occurs, give out an alarm signal before the battery has obvious thermal runaway, and carry out different early warnings aiming at different thermal runaway grades, so that a user can conveniently adopt corresponding coping strategies according to different thermal runaway grades.
At present, the safety of electric automobiles is ensured in the industry, a judgment method mainly aiming at battery thermal runaway early warning is adopted, an alarm signal is given before the battery is obviously thermally runaway, but an owner can obtain the alarm signal in time, and vehicle alarm can only inform the owner who has a warning condition, so that the risk of similar warning conditions cannot be prevented and reduced for other owners, safety accidents are avoided, and the judgment method becomes an important subject of electric automobile manufacturers.
Disclosure of Invention
The invention provides a thermal runaway alarm system and an alarm method of an electric vehicle, aiming at the problems in the prior art.
One of the technical schemes adopted by the invention is as follows: the utility model provides an electric automobile thermal runaway alarm system which characterized by, it includes: battery module 100, whole car the control unit 110, stereo set large-size screen 120, TBOX130, car networking platform 140, cell-phone client 150, dangerous warning light and the control unit 160, new energy automobile safety monitoring platform 170, battery module 100 include: power battery package, battery management system 101, pressure sensor 102, temperature sensor 103 power battery package in set up pressure sensor 102 and temperature sensor 103, pressure sensor 102 and temperature sensor 103 be connected in battery management system 101 electricity respectively, whole car the control unit 110 be connected with battery management system 101 electricity, battery management system 101 has CAN network awakening function, whole car the control unit 110 use signal connection stereo set large screen 120, whole car the control unit 110 be connected with hazard warning lamp and the control unit 160 electricity, whole car the control unit 110 be connected through CAN bus electricity with TBOX130, TBOX130 use signal connection car networking platform 140, car networking platform 140 use signal connect mobile client 150 and new energy automobile safety monitoring platform 170 respectively.
The second technical scheme adopted by the invention is as follows: an electric vehicle thermal runaway alarm method is characterized by comprising the following steps:
step S10: the battery management system 101 periodically collects the internal pressure and temperature of the battery pack through a pressure sensor 102 and a temperature sensor 103 arranged in the power battery pack;
step S20: the battery management system 101 compares the pressure value and the temperature value of the pressure sensor 102 and the temperature sensor 103 with a set standard value according to the collected pressure value and temperature value, if the pressure value and the temperature value are greater than the standard value, the thermal runaway problem occurs, step S30 is executed, if the pressure value and the temperature value are not greater than the standard value, the thermal runaway problem does not occur, and step S10 is executed;
step S30: the battery management system 101 judges whether the whole vehicle network is dormant, if the whole vehicle network is in a dormant state, the battery management system 101 wakes up the whole vehicle CAN network, and if the whole vehicle network is not in the dormant state, the step S40 is directly executed;
step S40: the whole vehicle control unit 110 reports vehicle state information during thermal runaway to the vehicle networking platform 140 through the TBOX130, the vehicle networking platform 140 reports to the new energy vehicle safety monitoring platform 170 and prompts a vehicle thermal runaway risk at the mobile phone client 150, and meanwhile, the whole vehicle control unit 110 instructs the hazard lamp control unit to control the hazard lamp to flicker at a fixed frequency;
step S50: the vehicle control unit 110 judges whether the vehicle is in a high-voltage power-on state, if the vehicle is not in the high-voltage power-on state, the sound large screen 120 pops the screen and prompts the danger of thermal runaway by voice, please leave the vehicle, and if the vehicle is in the high-voltage power-on state, the step S60 is directly entered;
step S60: the entire vehicle control unit 110 judges whether the vehicle directly puts high voltage according to the vehicle speed state information, if the vehicle speed is less than 10km/h, the battery management system 101 directly puts high voltage, and if the vehicle speed is more than or equal to 10km/h, the step S70 is directly entered;
step S70: the large sound screen 120 flicks the screen and prompts the danger of thermal runaway by voice, please stop at the side as soon as possible, leave the vehicle and prompt the high voltage 10s for countdown, and when the countdown 10s is reached, the battery management system 101 directly puts the high voltage down;
step S80: the large sound screen 120 flicks to prompt a thermal runaway rescue call, and the voice prompts the danger of thermal runaway and please leave the vehicle.
The invention relates to an electric vehicle thermal runaway alarm system and an alarm method thereof, and has the beneficial effects that:
1. a thermal runaway alarm system of an electric automobile timely prompts a user to get away from the automobile according to a thermal runaway state and vehicle state information such as automobile speed, high-voltage power-on and the like, controls a high-voltage system to be powered off, prompts the user of the thermal runaway state if the automobile is in a driving state, prompts the user to stop at the side quickly, and prompts the user to count down the power under the thermal runaway high voltage;
2. a warning method for thermal runaway of an electric automobile provides how to give a warning when the electric automobile is in thermal runaway, timely reminds a driver and passengers of leaving the automobile, avoids personal injury caused by spontaneous combustion of the electric automobile, simultaneously provides a mode of remote warning for informing the user of the thermal runaway risk of the automobile at the first time, reports vehicle state information to a new energy automobile safety monitoring platform, and provides a basis for follow-up thermal runaway problem troubleshooting.
Drawings
FIG. 1 is a schematic diagram of an electric vehicle thermal runaway alarm system;
FIG. 2 is a flow chart of a thermal runaway alarm method for an electric vehicle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1-2 and the specific embodiments described herein, which are provided for illustration only and not for limiting the invention.
As shown in fig. 1, an electric vehicle thermal runaway alarm system is composed of a battery module 100, a vehicle control unit 110, a sound large screen 120, a TBOX130, a vehicle networking platform 140, a mobile phone client 150, a hazard lamp and its control unit 160, and a new energy vehicle safety monitoring platform 170, wherein the battery module 100 is a vehicle power battery module, the battery management system 101, a pressure sensor 102, and a temperature sensor 103 are included in the battery module, the battery management system 101 collects the internal pressure and temperature of a battery pack by using the internal pressure sensor 102 and the temperature sensor 103 of the battery pack, and judges whether a thermal runaway problem occurs in the battery module 100 according to the internal pressure and temperature change conditions of the battery pack, and the battery management system 101 needs to have a wake-up function of a CAN network.
The vehicle control unit 110 is a core control unit for thermal runaway processing, receives thermal runaway state information of the battery management system 101, sends the thermal runaway information to the hazard lamp control unit 160, the sound large screen 120 and the TBOX130, timely prompts a user to get away from a vehicle according to the thermal runaway state and vehicle state information such as vehicle speed, high-voltage power-on and the like, controls the high-voltage system to power off, prompts the user of the thermal runaway state if the vehicle is in a driving state, prompts the user of stopping while parking quickly, and prompts the user of power down countdown under the thermal runaway high voltage.
The large sound screen 120 can prompt the current thermal runaway state by popping the screen when the thermal runaway occurs, and can prompt information such as rescue calls and the like by popping the screen; the TBOX130, the vehicle control unit 110 and the TBOX130 communicate through a CAN bus, information such as a current thermal runaway state and a vehicle state CAN be sent to the mobile phone client 150 and the new energy vehicle safety monitoring platform 170 through the TBOX130 and the internet of vehicles platform 140, and a user CAN know the vehicle state at the first time.
The vehicle networking platform 140 can realize information interaction between the mobile phone client 150 through the vehicle networking platform 140, and can report the vehicle information state to the new energy automobile safety monitoring platform 170 when the thermal runaway through the vehicle networking platform 140, dangerous alarm lamp and the control unit 160 thereof, when receiving the thermal runaway state signal, the dangerous alarm lamp of vehicle frequently flickers with fixed quick frequency, and the personnel outside the vehicle is reminded to keep away from the vehicle.
The new energy automobile safety monitoring platform 170 is a platform which is established by the state, the local government or a designated organization thereof and is used for carrying out data acquisition and unified management on electric automobiles in the jurisdiction range.
As shown in fig. 2, the method for alarming thermal runaway of the electric vehicle comprises the following steps:
step S10: the battery management system 101 periodically collects the internal pressure and temperature of the battery pack through a pressure sensor 102 and a temperature sensor 103 arranged in the power battery pack;
step S20: comparing the pressure value and the temperature value of the pressure sensor 102 and the temperature sensor 103 with a set standard value by the battery management system 101, if the pressure value and the temperature value are greater than the standard value, the problem of thermal runaway occurs, executing a step S30, and if the pressure value and the temperature value are not greater than the standard value, the problem of thermal runaway does not occur, executing a step S10;
step S30: the battery management system 101 judges whether the whole vehicle network is dormant, if the whole vehicle network is in a dormant state, the battery management system 101 wakes up the whole vehicle CAN network, and if the whole vehicle network is not in the dormant state, the step S40 is directly executed;
step S40: the whole vehicle control unit 110 reports vehicle state information during thermal runaway to the vehicle networking platform 140 through the TBOX130, the vehicle networking platform 140 reports to the new energy vehicle safety monitoring platform 170 and prompts a vehicle thermal runaway risk at the mobile phone client 150, and meanwhile, the whole vehicle control unit 110 instructs the hazard warning lamp control unit to control the hazard warning lamp to flicker at a fixed frequency;
step S50: the vehicle control unit 110 determines whether the vehicle is in a high-voltage power-on state, if the vehicle is not in the high-voltage power-on state, the large sound screen 120 pops the screen and prompts a danger of thermal runaway by voice, please leave the vehicle, and if the vehicle is in the high-voltage power-on state, the step S60 is directly performed;
step S60: the entire vehicle control unit 110 judges whether the vehicle directly puts high voltage according to the vehicle speed state information, if the vehicle speed is less than 10km/h, the battery management system 101 directly puts high voltage, and if the vehicle speed is more than or equal to 10km/h, the step S70 is directly entered;
step S70: the large sound screen 120 flicks the screen and prompts the danger of thermal runaway by voice, please stop at the side as soon as possible, leave the vehicle and prompt the high voltage 10s for countdown, and when the countdown 10s is reached, the battery management system 101 directly puts the high voltage down;
step S80: the large sound screen 120 flicks to prompt a thermal runaway rescue call, and the voice prompts the danger of thermal runaway and please leave the vehicle.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (2)
1. The utility model provides an electric automobile thermal runaway alarm system which characterized in that, it includes: battery module (100), whole car the control unit (110), stereo set large-size screen (120), TBOX (130), car networking platform (140), mobile client (150), dangerous warning light and the control unit (160), new energy automobile safety monitoring platform (170), battery module (100) include: power battery package, battery management system (101), pressure sensor (102), temperature sensor (103) power battery package in set up pressure sensor (102) and temperature sensor (103), pressure sensor (102) and temperature sensor (103) be connected in battery management system (101) electricity respectively, whole car the control unit (110) be connected with battery management system (101) electricity, battery management system (101) have CAN network and awaken the function up, whole car the control unit (110) use signal connection stereo set large screen (120), whole car the control unit (110) be connected with hazard warning lamp and the control unit (160) electricity, whole car the control unit (110) be connected through CAN bus electricity with TBOX (130), TBOX (130) use signal connection car networking platform (140), car networking platform (140) use signal connect mobile client (150) and new energy automobile safety monitoring platform (170) respectively.
2. The thermal runaway alarm system of an electric vehicle as claimed in claim 1, wherein the alarm method comprises the following steps:
step S10: the battery management system (101) periodically collects the internal pressure and temperature of the battery pack through a pressure sensor (102) and a temperature sensor (103) arranged in the power battery pack;
step S20: comparing the pressure value and the temperature value of the pressure sensor (102) and the temperature sensor (103) with a set standard value by the battery management system (101), if the pressure value and the temperature value are larger than the standard value, the thermal runaway problem occurs, executing step S30, if the pressure value and the temperature value are smaller than or equal to the standard value, the thermal runaway problem does not occur, and executing step S10;
step S30: the battery management system (101) judges whether the whole vehicle network is dormant, if the whole vehicle network is in a dormant state, the battery management system (101) wakes up the whole vehicle CAN network, and if the whole vehicle network is not in the dormant state, the step S40 is directly executed;
step S40: the vehicle control unit (110) reports vehicle state information during thermal runaway to a vehicle networking platform (140) through a TBOX (130), the vehicle networking platform (140) reports to a new energy vehicle safety monitoring platform (170) and prompts a vehicle thermal runaway risk at a mobile phone client (150), and meanwhile, the vehicle control unit (110) instructs a hazard warning lamp control unit to control a hazard warning lamp to flicker at a fixed frequency;
step S50: the whole vehicle control unit (110) judges whether the vehicle is in a high-voltage power-on state, if the vehicle is not in the high-voltage power-on state, the sound large screen (120) pops the screen and prompts the danger of thermal runaway through voice, please keep away from the vehicle, and if the vehicle is in the high-voltage power-on state, the step S60 is directly carried out;
step S60: the whole vehicle control unit (110) judges whether the vehicle directly puts high voltage or not according to the vehicle speed state information, if the vehicle speed is less than 10km/h, the battery management system (101) directly puts high voltage, and if the vehicle speed is more than or equal to 10km/h, the step S70 is directly carried out;
step S70: the large sound screen (120) flicks the screen and prompts the danger of thermal runaway by voice, please stop by the side as soon as possible, leave the vehicle and prompt the high voltage for countdown for 10s, and when the countdown for 10s is reached, the battery management system (101) directly starts to stop the high voltage;
step S80: the sound large screen (120) flicks the screen to prompt the rescue call of thermal runaway, and the voice prompts the danger of thermal runaway and please leave the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210847513.0A CN115195480A (en) | 2022-07-19 | 2022-07-19 | Electric vehicle thermal runaway alarm system and alarm method thereof |
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| CN202210847513.0A CN115195480A (en) | 2022-07-19 | 2022-07-19 | Electric vehicle thermal runaway alarm system and alarm method thereof |
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| CN115195480A true CN115195480A (en) | 2022-10-18 |
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| CN202210847513.0A Pending CN115195480A (en) | 2022-07-19 | 2022-07-19 | Electric vehicle thermal runaway alarm system and alarm method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959004A (en) * | 2022-12-06 | 2023-04-14 | 北汽福田汽车股份有限公司 | Vehicle safety monitoring system and method, vehicle-mounted communication terminal, vehicle and server |
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- 2022-07-19 CN CN202210847513.0A patent/CN115195480A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959004A (en) * | 2022-12-06 | 2023-04-14 | 北汽福田汽车股份有限公司 | Vehicle safety monitoring system and method, vehicle-mounted communication terminal, vehicle and server |
| CN115959004B (en) * | 2022-12-06 | 2024-04-05 | 北汽福田汽车股份有限公司 | Vehicle safety monitoring system and method, vehicle-mounted communication terminal, vehicle and server |
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