CN106891730B - Collision power-off protection device and method - Google Patents
Collision power-off protection device and method Download PDFInfo
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- CN106891730B CN106891730B CN201710234379.6A CN201710234379A CN106891730B CN 106891730 B CN106891730 B CN 106891730B CN 201710234379 A CN201710234379 A CN 201710234379A CN 106891730 B CN106891730 B CN 106891730B
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- 230000005484 gravity Effects 0.000 claims description 34
- 230000001133 acceleration Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 238000004590 computer program Methods 0.000 description 1
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
- B60R16/0233—Vehicle tilting, overturning or roll over
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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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- Life Sciences & Earth Sciences (AREA)
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- Transportation (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a collision power-off protection device and a method, which relate to the technical field of battery protection and comprise a battery management system, a collision detector and a high-voltage relay which are integrally arranged in a battery pack box body, and a mobile terminal which is in wireless connection with the battery management system, wherein the collision detector and the high-voltage relay are respectively connected with the battery management system; the method comprises the steps that collision overturning information of a vehicle is collected through a collision detector, a battery management system judges whether the collision overturning information meets a preset accident threshold value or not, under the condition that the collision overturning information meets the preset accident threshold value, a disconnection signal and accident information are generated according to the collision overturning information, a high-voltage relay cuts off the electric connection relation between a power battery module and the vehicle according to the disconnection signal, and a mobile terminal generates alarm information according to the accident information and issues the alarm information. The invention can improve the power-off response speed and increase the rescue function.
Description
Technical Field
The invention relates to the technical field of battery protection, in particular to a collision power-off protection device and a method.
Background
The prior art adopts a battery pack power-off method that when a collision sensor of a vehicle safety airbag detects collision, a collision signal is transmitted to a whole vehicle controller to inform the whole vehicle controller of the collision, then the whole vehicle controller sends a power-off command to a battery pack electric energy management system, and the battery pack electric energy management system turns off a high-voltage relay after receiving the power-off command, so that the battery pack is not output. However, the high-voltage relay of the battery pack is disconnected by the collision signal of the safety air bag, so that the signal can not be transmitted in time to disconnect the relay; in addition, if the accident happens in suburbs, the accident person cannot inform the outside to be rapidly rescued.
Disclosure of Invention
Therefore, the present invention is directed to a collision power-off protection device and method, so as to increase the power-off response speed and increase the rescue function.
In a first aspect, an embodiment of the present invention provides a crash power-off protection device, where the device includes: the battery pack comprises a battery management system, a collision detector, a high-voltage relay and a mobile terminal, wherein the battery management system, the collision detector and the high-voltage relay are integrally arranged in a battery pack box body, and the mobile terminal is in wireless connection with the battery management system;
the collision detector is used for collecting collision overturning information of the vehicle;
the battery management system is used for judging whether the collision overturning information meets a preset accident threshold or not, and generating a disconnection signal and accident information according to the collision overturning information under the condition that the collision overturning information meets the preset accident threshold;
the high-voltage relay is used for cutting off the electric connection relation between the power battery module and the vehicle according to the disconnection signal;
the mobile terminal is used for generating alarm information according to the accident information and issuing the alarm information.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the collision flip information includes flip angle information and gravitational acceleration information, and the collision detector includes a gyroscope and a gravitational sensor;
the gyroscope and the gravity sensor are respectively connected with the battery management system;
the gyroscope is used for monitoring the moving azimuth and the angular speed of the vehicle to obtain the overturning angle information;
and the gravity sensor is used for monitoring the gravity change information to obtain the gravity acceleration information.
With reference to the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, which further includes a vehicle controller, where the vehicle controller is connected to the battery management system through a CAN bus;
and the whole vehicle controller is used for generating and recording fault information according to the disconnection signal and adopting a hierarchical protection mechanism to carry out protection control on the vehicle.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the mobile terminal is further configured to read latitude and longitude information according to the accident information, generate the alarm information according to the accident information and the latitude and longitude information, and send the alarm information to a first preset terminal.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the mobile terminal is further configured to obtain preset sound information according to the accident information, generate the alarm information according to the accident information and the preset sound information, and send the alarm information to a second preset terminal.
With reference to the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where a wireless communication module is disposed between the mobile terminal and the battery management system.
With reference to the fifth possible implementation manner of the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the wireless communication module is a bluetooth module or a WiFi module.
In a second aspect, an embodiment of the present invention further provides a crash power-off protection method, where the method includes:
collecting collision overturning information of a vehicle;
judging whether the collision overturning information meets a preset accident threshold value or not;
if yes, generating a disconnection signal and accident information according to the collision overturning information;
cutting off the electric connection relation between the power battery module and the vehicle according to the disconnection signal;
generating alarm information according to the accident information, and issuing the alarm information.
With reference to the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, where the collision rollover information includes rollover angle information and gravitational acceleration information, and the collecting collision rollover information of the vehicle includes:
monitoring the moving azimuth and the angular speed of the vehicle to obtain the overturning angle information;
and monitoring the gravity change information to obtain the gravity acceleration information.
With reference to the second aspect, embodiments of the present invention provide a second possible implementation manner of the second aspect, where the method further includes:
and generating and recording fault information according to the disconnection signal, and performing protection control on the vehicle by adopting a hierarchical protection mechanism.
The embodiment of the invention has the following beneficial effects:
the invention provides a collision power-off protection device and a method, comprising a battery management system, a collision detector and a high-voltage relay which are integrally arranged in a battery pack box body, and a mobile terminal which is in wireless connection with the battery management system, wherein the collision detector and the high-voltage relay are respectively connected with the battery management system; the method comprises the steps that collision overturning information of a vehicle is collected through a collision detector, a battery management system judges whether the collision overturning information meets a preset accident threshold value or not, under the condition that the collision overturning information meets the preset accident threshold value, a disconnection signal and accident information are generated according to the collision overturning information, a high-voltage relay cuts off the electric connection relation between a power battery module and the vehicle according to the disconnection signal, and a mobile terminal generates alarm information according to the accident information and issues the alarm information. The invention can improve the power-off response speed and increase the rescue function.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a collision power-off protection device according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a collision power-off protection device according to a second embodiment of the present invention;
FIG. 3 is a crash power-off protection method according to a third embodiment of the present invention;
fig. 4 is a flowchart of a method for obtaining step S110 in the collision power-off protection method according to the third embodiment of the present invention.
Icon:
100-whole vehicle controller; 200-collision detector; 210-a gyroscope; 220-a gravity sensor; 300-high voltage relay; 400-battery management system; 500-a wireless communication module; 600-power battery module; 700-mobile terminal; 800-high low voltage connector.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The prior art adopts a battery pack power-off method that when a collision sensor of a vehicle safety airbag detects collision, a collision signal is transmitted to a whole vehicle controller to inform the whole vehicle controller of the collision, then the whole vehicle controller sends a power-off command to a battery pack electric energy management system, and the battery pack electric energy management system turns off a high-voltage relay after receiving the power-off command, so that the battery pack is not output. However, the high-voltage relay of the battery pack is disconnected by the collision signal of the safety air bag, so that the signal can not be transmitted in time to disconnect the relay; in addition, if the accident happens in suburbs, the accident person cannot inform the outside to be rapidly rescued.
Based on the above, the collision power-off protection device and the method provided by the embodiment of the invention can improve the power-off reaction speed and increase the rescue function.
For the convenience of understanding the present embodiment, a crash power-off protection device disclosed in the embodiment of the present invention will be described in detail.
Embodiment one:
fig. 1 is a schematic view of a crash power-off protection device according to a first embodiment of the present invention.
Referring to fig. 1, the collision power-off protection apparatus includes a battery management system 400 integrally installed inside a battery pack case, a collision detector 200 and a high voltage relay 300, and a mobile terminal 700 wirelessly connected with the battery management system 400, the collision detector 200 and the high voltage relay 300 being connected with the battery management system 400, respectively;
a collision detector 200 for collecting collision rollover information of the vehicle; the battery management system 400 is configured to determine whether the collision overturn information meets a preset accident threshold, and generate a disconnection signal and accident information according to the collision overturn information if the collision overturn information meets the preset accident threshold; a high voltage relay 300 for cutting off an electrical connection relationship between the power battery module 600 and the vehicle according to the cut-off signal; the mobile terminal 700 is configured to generate alarm information according to accident information, and issue the alarm information.
Specifically, the collision detector 200 includes a gyroscope 210 and a gravity sensor 220. In the charge and discharge process of the power battery module 600, if the vehicle is collided and overturned, collision overturned information of the vehicle can be collected through the gyroscope 210 and the gravity sensor 220, and the collision overturned information is sent to the battery management system 400; the battery management system 400 determines that the vehicle suffers an accident according to a preset accident threshold, and generates a disconnection signal and accident information. On the one hand, the battery management system 400 transmits a disconnection signal to the high voltage relay 300, and immediately controls the high voltage relay 300 to be disconnected to disconnect the power battery module 600 from the high voltage of the entire vehicle; in addition, the off signal is transmitted to the vehicle controller 100 using the CAN bus. On the other hand, the battery management system 400 sends the accident information to the mobile terminal 700 through wireless, where the mobile terminal 700 may be specifically a mobile phone App (Application program), and the mobile phone App will read the longitude and latitude information of the accident place and send the alarm information to a preset emergency contact in the form of a short message; and the pre-recorded sound file is also used for dialing to the alarm unit so as to help.
Therefore, the battery management system 400 can immediately cut off the high-voltage relay 300 when the accident happens through triggering the gravity sensor 220 and the gyroscope 210 and judging, and the reaction speed is high. And is connected with the mobile terminal 700, and can assist the accident person to be quickly rescued by automatically transmitting alarm information to the outside when the accident occurs.
According to an exemplary embodiment of the present invention, the collision flip information includes flip angle information and gravitational acceleration information, and the collision detector 200 includes a gyroscope 210 and a gravitational sensor 220;
the gyroscope 210 and the gravity sensor 220 are respectively connected with the battery management system 400;
the gyroscope 210 is configured to monitor a movement azimuth and an angular velocity of the vehicle, and obtain overturn angle information;
the gravity sensor 220 monitors gravity change information to obtain gravity acceleration information.
Specifically, the battery management system 400 is triggered by the flip angle information collected by the gyroscope 210 and the gravity acceleration information collected by the gravity sensor 220, and generates a disconnection signal and accident information when at least one of them meets a corresponding preset accident threshold.
According to an exemplary embodiment of the present invention, the vehicle control system further includes a vehicle control unit 100, and the vehicle control unit 100 is connected to the battery management system 400 through a CAN bus;
the vehicle controller 100 is configured to generate and record fault information according to the disconnection signal, and perform protection control on the vehicle by using a hierarchical protection mechanism.
Specifically, the battery management system 400 transmits the information of turning off the high-voltage relay 300 back to the whole vehicle controller 100, so that the whole vehicle controller 100 records the fault information of this time, and adopts a hierarchical protection mechanism to perform protection control on the vehicle, and performs power-off and protection on other parts in the whole vehicle.
According to an exemplary embodiment of the present invention, the mobile terminal 700 is further configured to read latitude and longitude information according to accident information, generate alarm information according to the accident information and the latitude and longitude information, and transmit the alarm information to the first preset terminal.
Specifically, the mobile terminal 700 may be a mobile phone, and the first preset terminal is one end of the emergency contact. The mobile phone reads the longitude and latitude information of the accident place, generates alarm information according to the accident information and the longitude and latitude information, and sends the alarm information to a preset emergency contact person in the form of a short message to tell the emergency contact person driver about the accident and the detailed position of the accident place.
According to an exemplary embodiment of the present invention, the mobile terminal 700 is further configured to acquire preset sound information according to accident information, generate alarm information according to the accident information and the preset sound information, and transmit the alarm information to a second preset terminal.
Specifically, the second preset terminal is one end of the alarm unit. Besides sending alarm information to emergency contact, the pre-recorded sound information is used for generating alarm information, and the alarm information is dialed to an alarm unit so as to help.
According to an exemplary embodiment of the present invention, a wireless communication module 500 is provided between the mobile terminal 700 and the battery management system 400.
Specifically, the wireless communication module 500 is a bluetooth module or a WiFi module. The mobile terminal 700 receives accident information transmitted from the battery management system 400 through bluetooth or WiFi.
According to an exemplary embodiment of the present invention, the number of high-voltage relays 300 is two. Both high voltage relays 300 are connected to the battery management system 400.
Embodiment two:
fig. 2 is a schematic diagram of a crash power-off protection device according to a second embodiment of the present invention.
Referring to fig. 2, a high-low voltage connector 800 is provided between the high-voltage relay 300 and the vehicle controller 100. The high-low voltage connector 800 is divided into a high voltage connector and a low voltage connector. The high-voltage connector is H+ and H-, and the low-voltage connector is a communicator.
Embodiment III:
fig. 3 is a crash power-off protection method according to a third embodiment of the present invention.
Referring to fig. 3, the crash power-off protection method includes the steps of:
step S110, acquiring collision overturning information of a vehicle;
step S120, judging whether collision overturning information meets a preset accident threshold; if so, step S130 is performed; if not, repeatedly executing the step S110;
step S130, generating a disconnection signal and accident information according to the collision overturning information;
step S140, cutting off the electric connection relation between the power battery module and the vehicle according to the disconnection signal;
and S50, generating alarm information according to the accident information and issuing the alarm information.
Specifically, a gyroscope and a gravity sensor collect collision overturning information of a vehicle and send the collision overturning information to a battery management system; the battery management system judges whether the collision overturning information meets a preset accident threshold value, generates a disconnection signal and accident information under the condition of meeting the preset accident threshold value, and indicates that the vehicle is not collided and overturned under the condition of not meeting the preset accident threshold value, and the gyroscope and the gravity sensor continuously collect the collision overturning information of the vehicle. On one hand, the battery management system sends a disconnection signal to the high-voltage relay, and the high-voltage relay is controlled to cut off the high-voltage connection between the power battery module and the whole vehicle in real time; on the other hand, the battery management system sends accident information to the mobile phone in a wireless way, and the mobile phone reads longitude and latitude information of the accident place and sends alarm information to a preset emergency contact person in a short message mode; and the pre-recorded sound file is also utilized to dial and ask the police dispatch unit for help.
According to an exemplary embodiment of the present invention, the crash roll-over information includes roll-over angle information and gravity acceleration information, and referring to fig. 4, the method for acquiring step S110 in the crash power-off protection method includes the steps of:
step S210, monitoring the moving azimuth and the angular speed of the vehicle to obtain overturn angle information;
and step S220, monitoring gravity change information to obtain gravity acceleration information.
Specifically, the battery management system is triggered by the overturning angle information collected by the gyroscope and the gravity acceleration information collected by the gravity sensor, and when at least one item of the battery management system meets a corresponding preset accident threshold value, a disconnection signal and accident information are generated.
According to an exemplary embodiment of the invention, the method further comprises:
and generating and recording fault information according to the disconnection signal, and performing protection control on the vehicle by adopting a hierarchical protection mechanism.
Specifically, the battery management system transmits the information of disconnecting the high-voltage relay back to the whole vehicle controller so that the whole vehicle controller records the fault information of the time, and adopts a grading protection mechanism to carry out protection control on the vehicle so as to carry out power failure and protection on other parts in the whole vehicle.
The invention provides a collision power-off protection device and a method, comprising a battery management system, a collision detector and a high-voltage relay which are integrally arranged in a battery pack box body, and a mobile terminal which is in wireless connection with the battery management system, wherein the collision detector and the high-voltage relay are respectively connected with the battery management system; the method comprises the steps that collision overturning information of a vehicle is collected through a collision detector, a battery management system judges whether the collision overturning information meets a preset accident threshold value or not, under the condition that the collision overturning information meets the preset accident threshold value, a disconnection signal and accident information are generated according to the collision overturning information, a high-voltage relay cuts off the electric connection relation between a power battery module and the vehicle according to the disconnection signal, and a mobile terminal generates alarm information according to the accident information and issues the alarm information. The invention can improve the power-off response speed and increase the rescue function.
The computer program product of the collision power-off protection device and method provided by the embodiment of the invention comprises a computer readable storage medium storing program codes, wherein the instructions included in the program codes can be used for executing the method described in the previous method embodiment, and specific implementation can be referred to the method embodiment and will not be repeated here.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A crash power-down protection device, the device comprising: the battery management system, the collision detector, the high-voltage relay and the whole vehicle controller are integrated and installed in the battery pack box body, and the mobile terminal is in wireless connection with the battery management system;
the collision detector is used for collecting collision overturning information of the vehicle; the collision overturning information comprises overturning angle information obtained through a gyroscope and gravity acceleration information obtained through a gravity sensor;
the battery management system is used for judging whether the collision overturning information meets a preset accident threshold or not, and generating a disconnection signal and accident information according to the collision overturning information under the condition that the collision overturning information meets the preset accident threshold;
the high-voltage relay is used for cutting off the electric connection relation between the power battery module and the vehicle according to the disconnection signal;
the mobile terminal is used for generating alarm information according to the accident information and issuing the alarm information;
and the whole vehicle controller is used for generating and recording fault information according to the disconnection signal and adopting a hierarchical protection mechanism to carry out protection control on the vehicle.
2. The crash power-down protection device as recited in claim 1, wherein said crash detector comprises a gyroscope and a gravity sensor;
the gyroscope and the gravity sensor are respectively connected with the battery management system;
the gyroscope is used for monitoring the moving azimuth and the angular speed of the vehicle to obtain the overturning angle information;
and the gravity sensor is used for monitoring the gravity change information to obtain the gravity acceleration information.
3. The collision power-off protection device according to claim 1, wherein the mobile terminal is further configured to read latitude and longitude information according to the accident information, generate the alarm information according to the accident information and the latitude and longitude information, and send the alarm information to a first preset terminal.
4. The crash power-off protection device according to claim 1, wherein the mobile terminal is further configured to obtain preset sound information according to the accident information, generate the alarm information according to the accident information and the preset sound information, and send the alarm information to a second preset terminal.
5. The crash power-off protection device as recited in claim 1, wherein a wireless communication module is provided between the mobile terminal and the battery management system.
6. The crash power-down protection device as recited in claim 5, wherein the wireless communication module is a bluetooth module or a WiFi module.
7. A crash power-off protection method, the method comprising:
collecting collision overturning information of a vehicle; the collision overturning information comprises overturning angle information obtained through a gyroscope and gravity acceleration information obtained through a gravity sensor; judging whether the collision overturning information meets a preset accident threshold value or not;
if yes, generating a disconnection signal and accident information according to the collision overturning information;
cutting off the electric connection relation between the power battery module and the vehicle according to the disconnection signal;
generating alarm information according to the accident information, and issuing the alarm information;
and generating and recording fault information according to the disconnection signal, and performing protection control on the vehicle by adopting a hierarchical protection mechanism.
8. The crash power-down protection method as set forth in claim 7, wherein the crash rollover information includes rollover angle information and gravitational acceleration information, and wherein the collecting crash rollover information of the vehicle comprises:
monitoring the moving azimuth and the angular speed of the vehicle to obtain the overturning angle information;
and monitoring the gravity change information to obtain the gravity acceleration information.
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| CN201710234379.6A CN106891730B (en) | 2017-04-11 | 2017-04-11 | Collision power-off protection device and method |
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| CN110803022B (en) * | 2018-07-19 | 2021-10-15 | 郑州宇通客车股份有限公司 | Electric vehicle collision protection control method and system |
| CN111976491A (en) * | 2020-08-27 | 2020-11-24 | 内蒙古莱拓汽车科技有限公司 | Safety protection system of trackless rubber-tyred vehicle |
| CN112200935A (en) * | 2020-09-29 | 2021-01-08 | 广州小鹏汽车科技有限公司 | Data processing method and device |
| CN115503484A (en) * | 2022-10-24 | 2022-12-23 | 湖北亿纬动力有限公司 | Battery energy control method and system |
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| CN102195504A (en) * | 2010-03-11 | 2011-09-21 | 株式会社电装 | Discharging control device for electric power conversion system |
| CN102837616A (en) * | 2012-09-24 | 2012-12-26 | 中国汽车工程研究院股份有限公司 | Pre-crash high-voltage power-off protection system for electric vehicle |
| CN103640533A (en) * | 2013-12-07 | 2014-03-19 | 成都亿盟恒信科技有限公司 | Device and method for detecting vehicle collision rolling over and automatically calling for help |
| CN206797132U (en) * | 2017-04-11 | 2017-12-26 | 深圳市瀚路新能源汽车有限公司 | Cutting electricity in collision protection device and collision protection system |
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2017
- 2017-04-11 CN CN201710234379.6A patent/CN106891730B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195504A (en) * | 2010-03-11 | 2011-09-21 | 株式会社电装 | Discharging control device for electric power conversion system |
| CN102837616A (en) * | 2012-09-24 | 2012-12-26 | 中国汽车工程研究院股份有限公司 | Pre-crash high-voltage power-off protection system for electric vehicle |
| CN103640533A (en) * | 2013-12-07 | 2014-03-19 | 成都亿盟恒信科技有限公司 | Device and method for detecting vehicle collision rolling over and automatically calling for help |
| CN206797132U (en) * | 2017-04-11 | 2017-12-26 | 深圳市瀚路新能源汽车有限公司 | Cutting electricity in collision protection device and collision protection system |
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| CN106891730A (en) | 2017-06-27 |
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