CN212267264U - Multilayer safety device for electric automobile charging - Google Patents
Multilayer safety device for electric automobile charging Download PDFInfo
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- CN212267264U CN212267264U CN202022355573.XU CN202022355573U CN212267264U CN 212267264 U CN212267264 U CN 212267264U CN 202022355573 U CN202022355573 U CN 202022355573U CN 212267264 U CN212267264 U CN 212267264U
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- charger
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- charging
- battery
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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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- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
Abstract
A multi-layer safety protection device for electric vehicle charging comprises a vehicle controller, a storage battery, a battery management system, a charger, a remote monitoring module and a remote cloud platform, wherein the storage battery is connected with the battery management system, a switch K1 is arranged between the storage battery and the battery management system, a switch K1 is in control connection with the vehicle controller, the charger and a power battery form a charging closed loop, at least one switch K2 is arranged on the charging closed loop, the charger is in signal connection with the vehicle controller, the battery management system is in communication connection with the charger, the battery management system is in control connection with a switch K2, the vehicle controller is in communication connection with the battery management system, the remote monitoring module is in communication connection with the vehicle controller, and the remote cloud platform is in communication connection with the remote monitoring module. The device not only monitors the current charging state of the battery system, but also analyzes the health and safety states of the battery in a multidimensional way, monitors the dynamic state of the vehicle and provides multidirectional and multi-angle protection for the charging of the vehicle.
Description
Technical Field
The utility model relates to a new energy automobile technical field, more specifically say and indicate an electric automobile multilayer safety device that charges.
Background
At present, when an electric automobile is charged, only a battery management system and a charger are usually arranged on a communication link, the battery management system and the charger only interact with a battery system and the charging state of the charging pile, the vehicle state is unknown, a safety blind area exists, when a fault that the vehicle is not abnormal in the battery system occurs, such as abnormal manual brake, the charging process can be caused, the vehicle slides along a charging gun line with the charging gun line, the charging line is pulled off in a charged mode, and accordingly a safety accident occurs, on the other hand, the battery management system controls charging according to the real-time state of the battery system, the inconsistency of historical charging behaviors in a life cycle can not be identified, such as temperature rise inconsistency, single pressure difference inconsistency and the like.
The utility model discloses a utility model patent that grant notice number is CN 207433318U discloses an electric automobile with safety of charging, be in including automobile body, setting charging seat on the automobile body is still including being used for detecting the contact state's between charging seat and the charging plug contact sensor, and based on contact state starts or closes parking controller of parking control, wherein contact sensor with parking controller communication connection. The parking control is started by detecting the contact state between the charging seat and the charging plug, so that the safety accident of starting the vehicle is avoided, the current, the voltage and/or the temperature of the battery are further detected, and the power is rapidly cut off when the battery is over-temperature, over-voltage and/or over-current, so that the charging safety of the electric automobile is improved.
However, although the interlocking of parking and charging can be realized in the patent, the requirement of GB 18384 and 2020 on charging safety is met, and meanwhile, the abnormality such as battery over-temperature, overvoltage or overcurrent occurring in the charging process can only be controlled by the battery management system itself, and the problem of vehicle slipping and being dragged with electricity under the abnormality of parking, that is, the abnormality of the hand brake signal, cannot be avoided, and the inconsistency of the historical charging behavior in the life cycle cannot be recognized, and the vehicle cannot be stopped from being charged in time due to other abnormalities occurring. Therefore, the charging multilayer safety protection device and method for the electric automobile are provided.
Disclosure of Invention
The utility model provides an electric automobile multilayer safety device that charges to only can pass through battery management system self control when overcoming current electric vehicle and charging, can't avoid leading to the incident that charges and cause when non-battery system abnormal fault appears in the vehicle, and when failing to discern the nonconformity of historical charging action in the life cycle, can't in time stop shortcomings such as charging.
The utility model adopts the following technical scheme:
a multilayer safety protection device for charging of an electric automobile comprises a vehicle control unit, a storage battery, a battery management system, a charger, a remote monitoring module and a remote cloud platform, wherein the storage battery is connected with the battery management system, a switch K1 is arranged between the storage battery and the battery management system, the switch K1 is connected with the vehicle control unit in a control way, the charger and the power battery form a charging closed loop, the charging closed loop is at least provided with a switch K2, the charger is in signal connection with the vehicle control unit, the battery management system is in communication connection with the charger, the battery management system is also in control connection with the switch K2, the vehicle control unit is in communication connection with the battery management system, the remote monitoring module is in communication connection with the vehicle control unit, and the remote cloud platform is in communication connection with the remote monitoring module.
Preferably, when the charger is an off-board direct current charger, the off-board direct current charger is connected with the vehicle control unit through an auxiliary power signal.
Preferably, when the charger is a vehicle-mounted charger, the non-vehicle-mounted alternating current charger or the control box on the cable is connected with the vehicle-mounted charger through a control guide CP signal, and the vehicle-mounted charger is connected with the vehicle control unit through a wake-up signal.
Further, the vehicle-mounted charger is connected with the storage battery, a switch K4 is arranged between the vehicle-mounted charger and the storage battery, and the switch K4 is in control connection with the vehicle control unit.
Preferably, when the charger is an off-board direct current charger, the protection device further comprises an EVCC and an SECC, the battery management system is in communication connection with the EVCC, the off-board direct charger is connected with the EVCC through a control pilot CP signal, and the EVCC is in communication connection with the SECC through a PLC.
From the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. the utility model discloses when electric automobile charges, introduce vehicle control unit and long-range cloud platform on single battery management system control basis and participate in safety control, realize the multilayer safety protection that charges, not only monitor battery system current state of charge, while multidimension degree analysis battery is healthy and the safe state to control, and monitor the vehicle developments, provide diversified multi-angle protection for the vehicle charges, improved the fail safe nature that the vehicle charges.
2. The utility model discloses a multilayer safety device, long-range cloud platform carry out statistical analysis to historical charging data and form the safety protection model to constantly update the database, the predictable abnormal charging, in time discernment risk starts the safety protection mechanism, charges to the prediction and carries out the police dispatch newspaper and long-range issue and inform vehicle control unit unusually, and indirect control battery management system falls to flow and charges or stop charging.
Drawings
Figure 1 is the utility model discloses a multilayer safety device frame picture that national standard direct current rifle filled.
Fig. 2 is a frame diagram of the multi-layer safety protection device of the ac gun charger of the present invention.
Fig. 3 is the frame diagram of the multi-layer safety protection device of the european standard dc gun charger of the utility model.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth in the following description in order to provide a thorough understanding of the present invention, but it will be apparent to one skilled in the art that the present invention may be practiced without these details. Well-known components, methods and processes are not described in detail below.
The electric vehicle charging multilayer safety protection device comprises a vehicle control unit 1, a storage battery 2, a battery management system 3, a charger, a remote monitoring module 5 and a remote cloud platform 6, wherein low-voltage power supply inputs of the vehicle control unit 1, the charger and the remote monitoring module 5 are all connected with the storage battery 2, and a normal-electricity working state is kept. The storage battery 2 is further connected with the battery management system 3, a switch K1 is arranged between the storage battery 2 and the battery management system 3, and the switch K1 is in control connection with the vehicle control unit 1.
The charger and the power battery form a charging closed loop, the charging closed loop is provided with a switch K2 and a switch K3, and the battery management system is in control connection with the switch K2 and the switch K3. The vehicle control unit 1 is in communication connection with the remote monitoring module 5 through a CAN1, the battery management system 3 is in communication connection with the vehicle control unit 1 through a CAN2, the charger is in communication connection with the battery management system 3 through a CAN3, and the remote monitoring module 5 is in communication connection with the remote cloud platform 6 through a 4G or 5G communication link.
Referring to fig. 1, in the national standard dc gun charging mode, the charger is an off-board dc charger 41, and the off-board dc charger 41 is connected to the vehicle control unit 1 through an auxiliary power signal. After the gun insertion starts charging, the vehicle control unit 1 detects an auxiliary power supply signal (level signal) output by the off-board direct-current charger 41 to recognize charging start, and outputs a driving control switch K1 to be closed, so that the storage battery provides a low-voltage working power supply for the battery management system.
Referring to fig. 2, in the ac gun charging mode, the charger is a vehicle-mounted charger 42, the vehicle-mounted charger 42 is connected to the battery, a switch K4 is disposed between the vehicle-mounted charger 42 and the battery 2, and the switch K4 is in control connection with the vehicle control unit 1. The off-board alternating current charger or the control box on the cable is connected with the on-board alternating current charger through a control guide CP signal, and the on-board alternating current charger 42 is connected with the vehicle control unit 1 through a wake-up signal. After the gun insertion starts charging, the off-board alternating current charger or the control box on the cable outputs a control guide CP signal to wake up the on-board charger 42, the on-board charger 42 outputs a charging wake-up signal after waking up, the vehicle control unit 1 detects the signal to recognize charging opening, and the output drives the control switch K1 to be closed, so that the storage battery 2 provides a low-voltage working power supply for the battery management system 3.
Referring to fig. 3, in the euro-standard dc gun charging mode, the charger is an off-board dc charger 43, the protection device further includes an EVCC7 and an SECC8, the battery management system 3 is in communication connection with the EVCC7, the off-board dc charger 43 is connected with the EVCC7 by a control pilot CP signal, and the EVCC7 is in communication connection with the SECC8 by a PLC. After the gun insertion starts charging, the EVCC7 is awakened by a control guide CP signal output by the off-board direct current charger 43, the PLC communication is established with the SECC8, then a charging awakening signal is output, the vehicle control unit 1 detects the signal to recognize charging opening, and the output drives the control switch K1 to be closed, so that the storage battery 2 provides a low-voltage working power supply for the battery management system 3.
The vehicle control unit 1 monitors a vehicle state (including a power battery state) and a charging state of the remote cloud platform 6 in real time, in a charging process, if the vehicle is abnormal, including but not limited to a hand brake abnormality, a discharging contactor abnormality, a power battery abnormality and the like, or receives a charging abnormality notification transmitted by the remote cloud platform 6 and forwarded by the vehicle-mounted remote monitoring module 5, the vehicle control unit 1 transmits corresponding information according to preset fault grade division to notify the battery management system to make a charging adjustment response, in the embodiment, the vehicle control unit adopts a CAN communication mode to notify, and in order to improve the system reliability and the timeliness corresponding to faults, a hard-line alarm and CAN communication redundancy combination mode CAN be adopted.
The battery management system 3 keeps communicating with the vehicle control unit 1, responds to a down flow or stops charging in time when a system fault or a charger fault occurs or a charging abnormality issued by the vehicle control unit 1 is received, and feeds back a response condition.
The remote cloud platform 6 continuously updates the charging data returned by the vehicle-mounted remote monitoring module 5 in a 4G or 5G communication link mode, performs real-time data multidimensional analysis, analyzes the historical charging behavior of the vehicle and the charging behavior of the same vehicle type under the conditions that the ambient temperature, the charging power, the battery temperature at the beginning of charging and the like are similar or the same, compares the temperature rise rate, the monomer pressure difference, the temperature difference and the like of the battery in unit time under the condition that a cooling system is not abnormal, issues an abnormal notice when the monitored temperature rise, the monomer pressure difference, the temperature difference and the like are obviously deviated from the historical charging behavior of the vehicle or the mean value, the variance and the like of the charging behavior of the same vehicle type, starts a safety protection mechanism, and sends early warning information to inform a user in a short message or telephone mode when a report is.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (5)
1. The utility model provides an electric automobile multilayer safety device that charges which characterized in that: the intelligent charging system comprises a vehicle control unit, a storage battery, a battery management system, a charger, a remote monitoring module and a remote cloud platform, wherein the storage battery is connected with the battery management system, a switch K1 is arranged between the storage battery and the battery management system, the switch K1 is connected with the vehicle control unit in a control mode, the charger and a power battery form a charging closed loop, at least one switch K2 is arranged on the charging closed loop, the charger is connected with the vehicle control unit in a signal mode, the battery management system is connected with the charger in a communication mode, the battery management system is further connected with the switch K2 in a control mode, the vehicle control unit is connected with the battery management system in a communication mode, the remote monitoring module is connected with the vehicle control unit in a communication mode, and the remote cloud platform is connected with the remote monitoring module in a communication mode.
2. The multi-layer safety protection device for electric vehicle charging according to claim 1, wherein: the charger is an off-board direct current charger which is connected with the vehicle control unit through an auxiliary power supply signal.
3. The multi-layer safety protection device for electric vehicle charging according to claim 1, wherein: the charger is a vehicle-mounted charger, the non-vehicle-mounted alternating current charger or a control box on the cable is connected with the vehicle-mounted charger through a control guide CP signal, and the vehicle-mounted charger is connected with the vehicle control unit through a wake-up signal.
4. The multi-layer safety protection device for electric vehicle charging according to claim 3, wherein: the vehicle-mounted charger is connected with the storage battery, a switch K4 is arranged between the vehicle-mounted charger and the storage battery, and the switch K4 is in control connection with the vehicle control unit.
5. The multi-layer safety protection device for electric vehicle charging according to claim 1, wherein: the protection device further comprises an EVCC and an SECC, the battery management system is in communication connection with the EVCC, the off-board direct charger is connected with the EVCC through a control guide CP signal, and the EVCC is in communication connection with the SECC through a PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022355573.XU CN212267264U (en) | 2020-10-21 | 2020-10-21 | Multilayer safety device for electric automobile charging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022355573.XU CN212267264U (en) | 2020-10-21 | 2020-10-21 | Multilayer safety device for electric automobile charging |
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| CN212267264U true CN212267264U (en) | 2021-01-01 |
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| CN202022355573.XU Active CN212267264U (en) | 2020-10-21 | 2020-10-21 | Multilayer safety device for electric automobile charging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295986A (en) * | 2021-12-03 | 2022-04-08 | 广西电网有限责任公司北海供电局 | Storage battery state monitoring module |
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2020
- 2020-10-21 CN CN202022355573.XU patent/CN212267264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295986A (en) * | 2021-12-03 | 2022-04-08 | 广西电网有限责任公司北海供电局 | Storage battery state monitoring module |
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