CN206456246U - Pure electric automobile high-voltage interlocking detection means - Google Patents
Pure electric automobile high-voltage interlocking detection means Download PDFInfo
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- CN206456246U CN206456246U CN201720120160.9U CN201720120160U CN206456246U CN 206456246 U CN206456246 U CN 206456246U CN 201720120160 U CN201720120160 U CN 201720120160U CN 206456246 U CN206456246 U CN 206456246U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model is related to a kind of pure electric automobile high-voltage interlocking detection means, comprising：Low pressure detection module, malfunction coefficient module；Low pressure detection module includes low-tension supply, low-voltage relay, and low pressure connection line；Described low pressure connection line includes connection line one, connection line two, connection line three, connection line four, connection line two, connection line three, the one end of connection line four are in parallel, and the other end of three is connected in low pressure measure loop two respectively, in low pressure measure loop three, in low pressure measure loop four；High voltage power system, high pressure accessory system, charging system detect corresponding connection by VCU respectively and feed back to battery management system BMS, and battery management system BMS is connected with three high-voltage relay signal wires.The utility model is prevented effectively from the security risk of whole high tension loop, while the integrality of vehicle power and function system is ensured, ensures safety, the safety of driver and crew and the running environment safety of automobilism again.
Description
Technical field
The utility model belongs to the safety detection technology field of pure electronic vapour high-pressure system, more particularly to a kind of pure electronic vapour
Car high-voltage interlocking detection means.
Background technology
Compared with traditional vehicle, pure electric automobile add motor, electric machine controller, DC/DC, high-tension battery bag, compressor,
The high voltage electrics such as PTC or power supply unit.Therefore the security protection of vehicle high-pressure system is extremely important.So as to international standard ISO
6469-3-2011《Electric road vehicle safety standard Part III：The anti-electric shock protection of human body》On middle regulation, electric vehicle
High voltage component should possess high-voltage interlocking device.High-voltage interlocking, also refers to high-voltage interlocking loop（High Voltage Inter-
Lock, abbreviation HVIL）；Integrality, the continuity in whole high-pressure system loop are detected by high-voltage interlocking, and is disconnected in time high
Press the control apparatus part of input.
Pure electronic logistic car for existing market, basically by cancellation engine, power transmission shaft, fuel tank, and increases
Plus some high voltage supplies or electrical equipment；High voltage supply or electrical equipment are connected by high-voltage wiring harness and connector, form high
Press system circuit；For now, the pure electric vehicle in market seldom uses this high-voltage interlocking scheme.
The content of the invention
For deficiency of the prior art, the utility model provides a kind of pure electric automobile high-voltage interlocking detection means, carried
Loop and control for the high-pressure system safety detection suitable for pure electric automobile vehicle, integrality to vehicle high-pressure system,
Abnormal disconnect in continuity and identification loop plays a protective role, and realizes that failure subsystem is quoted, with effective and rapid, reliability
High the characteristics of, applicability is good.
According to design provided by the utility model, a kind of pure electric automobile high-voltage interlocking detection means is connected to
In pure electric automobile high-tension line, comprising low pressure detection module, malfunction coefficient module, battery management system in pure electric automobile
BMS is connected with entire car controller VCU signals, and described low pressure detection module includes low-tension supply, low-voltage relay, and low pressure
Connection line；Described low pressure connection line includes connection line one, connection line two, connection line three, connection line four, even
Link two, connection line three, the one end of connection line four are in parallel, the other end of connection line two connection high voltage power system and low pressure
In the low pressure measure loop two of relay connection, the other end of connection line three connection high pressure accessory system is connected with low-voltage relay
Low pressure measure loop three in, the low pressure measure loop that is connected with low-voltage relay of the other end of connection line four connection charging system
In four, wherein, anti-collision valve is connected to battery management system BMS, BMS and passes through three high-voltage relays and connection line in parallel
One one end is electrically connected, the other end of connection line one ground connection, is connected simultaneously between high voltage power system mesohigh power part connector
Pass through connection line two, entire car controller VCU, low-voltage relay formation low pressure measure loop two, high pressure accessory system mesohigh
Connected between accessory connector and pass through connection line three, entire car controller VCU, low-voltage relay and form low pressure measure loop
Three, connected between charging unit connector in charging system and pass through connection line four, entire car controller VCU, low-voltage relay
Form low pressure measure loop four；High voltage power system, high pressure accessory system, charging system are connected accordingly by VCU detections respectively
Connect situation and feed back to battery management system BMS, battery management system BMS is connected with three high-voltage relay signal wires.
Above-mentioned, low-voltage relay coil one end is electrically connected with low-tension supply, and the other end is electrically connected with entire car controller VCU
Connect, low-voltage relay normal-closed end is electrically connected with low-tension supply, the normally opened end of low-voltage relay is attached with high voltage power system, high pressure respectively
Part system, charging system electrical connection.
It is preferred that, described low-voltage relay coil one end is electrically connected by fuse with low-tension supply.
Above-mentioned, described low-tension supply is 12V power supplys.
Above-mentioned, high voltage power component connector includes battery packet gateway, high-voltaghe compartment battery connector and microcontroller list
First MCU connectors；High pressure accessory connector includes high-voltaghe compartment out connector, DC/DC connectors, AC connectors and PTC connections
Device；Charging unit connector is comprising trickle charge input connector, trickle charge out connector and fills connector soon.
Above-mentioned, described malfunction coefficient module includes the high voltage power being connected respectively with entire car controller VCU signals
System high pressure power part connector fault display unit, high pressure accessory system high pressure accessory connector fault display unit and
Charging system charging unit connector fault display unit.
It is preferred that, described malfunction coefficient module also includes the indicator lamp or buzzer reminded for failure.
The beneficial effects of the utility model：
The utility model is directed to the structure and feature of pure electric vehicle, and according to GB/T 18384 requirement, there is provided suitable for this
The high-voltage interlocking detection protection of vehicle, safeguard measure in a failure mode has effective and rapid, the characteristics of reliability is high, will not
Because the failure of some key components and parts causes the security risk of whole high tension loop, with good adaptability；Ensureing whole
While the integrality of car power and function system, ensure safety, the safety of driver and crew and the running environment of automobilism again
Safety.
Brief description of the drawings：
Fig. 1 is schematic diagram of device of the present utility model；
Fig. 2 is apparatus structure schematic diagram of the present utility model.
Embodiment：
The utility model is described in further detail with technical scheme below in conjunction with the accompanying drawings, and passes through preferred implementation
Example describes embodiment of the present utility model in detail, but embodiment of the present utility model is not limited to this.
A kind of embodiment one, shown in Figure 1, pure electric automobile high-voltage interlocking detection means, is connected to pure electric automobile
In high-tension line, comprising low pressure detection module, malfunction coefficient module, battery management system BMS and vehicle control in pure electric automobile
Device VCU signals processed are connected, and described low pressure detection module includes low-tension supply, low-voltage relay, and low pressure connection line；Institute
The low pressure connection line stated includes connection line one, connection line two, connection line three, connection line four, connection line two, company
Link three, the one end of connection line four are in parallel, and the other end of connection line two connection high voltage power system is connected with low-voltage relay
VCU low pressure measure loop two in, the VCU that is connected with low-voltage relay of the other end of connection line three connection high pressure accessory system is low
Press in measure loop three, the VCU low pressure measure loops that the other end of connection line four connection charging system is connected with low-voltage relay
In four, wherein, anti-collision valve is connected to battery management system BMS, BMS and passes through three high-voltage relays in parallel and connection line one
One end is electrically connected, the other end of connection line one ground connection, is connected and is led between high voltage power system mesohigh power part connector
Connection line two, entire car controller VCU, low-voltage relay formation low pressure measure loop two are crossed, high pressure accessory system mesohigh is attached
Connected between part connector and by connection line three, entire car controller VCU, low-voltage relay formation low pressure measure loop three,
Connect and formed by connection line four, entire car controller VCU, low-voltage relay between charging unit connector in charging system
Low pressure measure loop four；High voltage power system, high pressure accessory system, charging system pass through the corresponding connection feelings of VCU detections respectively
Condition simultaneously feeds back to battery management system BMS, and battery management system BMS is connected with three high-voltage relay signal wires.
For the structure and feature of pure electric vehicle, according to GB/T 18384 requirement, there is provided the high pressure suitable for the vehicle
Measure loop is interlocked, safeguard measure in a failure mode has effective and rapid, the characteristics of reliability is high, will not be closed because of some
The failure of key parts causes the security risk of whole high tension loop, and with good adaptability, using effect is good.
Embodiment two, referring to shown in Fig. 1 ~ 2, essentially identical with embodiment one, difference is：Low-voltage relay coil
One end is electrically connected with low-tension supply, and the other end is electrically connected with entire car controller VCU, low-voltage relay normal-closed end and low-tension supply electricity
Connection, the normally opened end of low-voltage relay is electrically connected with high voltage power system, high pressure accessory system, charging system respectively.
It is preferred that, described low-voltage relay coil one end is electrically connected by fuse with low-tension supply.
Above-mentioned, described low-tension supply is 12V power supplys.
Above-mentioned, high voltage power component connector includes battery packet gateway, high-voltaghe compartment battery connector and microcontroller list
First MCU connectors；High pressure accessory connector includes high-voltaghe compartment out connector, DC/DC connectors, AC connectors and PTC connections
Device；Charging unit connector is comprising trickle charge input connector, trickle charge out connector and fills connector soon.
Above-mentioned, described malfunction coefficient module includes the high voltage power being connected respectively with entire car controller VCU signals
System high pressure power part connector fault display unit, high pressure accessory system high pressure accessory connector fault display unit and
Charging system charging unit connector fault display unit.
It is preferred that, described malfunction coefficient module also includes the indicator lamp or buzzer reminded for failure.
Specific working method:Connection line one, by the way that anticollision is connected into power-supply management system by low pressure connection line
BMS, when sharp impacts occur for vehicle, anti-collision valve normally closed switch disconnects, by this signal（Power supply signal）Send to battery management
System BMS, BMS receive the current supply circuit that three high-voltage relay coils in parallel are directly cut off after this information, realize quick
The effect in cutoff high loop；Connection line two, by by battery bag in battery bag both positive and negative polarity, high-voltaghe compartment, electric machine controller
Interlocking module in both positive and negative polarity connector is connected serially to the normally opened end of low-voltage relay into VCU, forms high voltage power system detectio and connects
Link two, when ON grades of vehicle, VCU drags down one end of low-voltage relay coil, makes have 12V low-tension supplies in rat tail two,
Lower end is connected to VCU, and VCU detection lines port is constantly in high level（12V）；If there is wherein any one or more connectors
Connection is not intact, and interlocking module disconnects, and VCU detection lines port is in low level（0V）, VCU testing results are sent out by vehicle CAN
Battery management system BMS, BMS control cut-out three high-voltage relay coil input end power supplys in parallel are delivered to, so that relay
Act to realize power-off, dynamical system connector failure is sent to instrument and shown by vehicle CAN by VCU.Connection line three,
Interlocking module by the way that high-voltaghe compartment is exported, in DCDC, compressor, PTC connectors is connected serially to the normally opened end of low-voltage relay to VCU
In, high pressure accessory system detection connection line three is formed, VCU drags down one end of low-voltage relay coil when ON grades of vehicle, makes
There are 12V low-tension supplies in connection line three, the lower end of connection line three is connected to VCU, and VCU detection lines port is constantly in high electricity
It is flat（12V）；If having, wherein any one or more connector connections are not intact, and interlocking module is disconnected, and VCU detection lines port is in
Low level（0V）, VCU testing results are sent to battery management system BMS by vehicle CAN, BMS control cut-outs DCDC, compression
Machine, PTC corresponding high-voltage relay coil input end power supply, so that power-off is realized in the actuating of relay, VCU passes through vehicle CAN
High pressure accessory system connector failure is sent to instrument and shown.Connection line four, by the way that trickle charge input, trickle charge are exported,
The interlocking module filled soon in connector is connected serially to the normally opened end of low-voltage relay into VCU, forms charging system detection connection line
Four, when ON grades of vehicle, VCU drags down one end of low-voltage relay coil, makes have 12V low-tension supplies, connecting line in connection line four
The lower end of road four is connected to VCU, and VCU detection lines port is constantly in high level（12V）；If there is wherein any one or more companies
Connect device connection not intact, interlocking module disconnection, VCU detection lines port is in low level（0V）, VCU testing results pass through vehicle
CAN is sent to battery management system BMS, BMS control cut-outs trickle charge, the high-voltage relay coil input end power supply filled soon, so that
Power-off is realized in the actuating of relay, and charging system connector failure sends to instrument and shown by vehicle CAN by VCU.
Shown in Figure 2 in the utility model, entire car controller VCU controls high-voltage interlocking HVIL loop by low-voltage
Connection, i.e. the control coil that VCU drags down low-voltage relay 1 makes relay adhesive, and 12V power supplys reach VCU by HVIL loop,
After detecting that pin can't detect the 12V in HVIL loop, sent by VCU to BMS involved by disconnecting in corresponding connectors loop
And the coil control end of the high-voltage relay arrived, so as to reach the purpose in cutoff high loop.Concrete operating principle is as follows：Work as chance
To the working condition of emergency power off（Such as impact or collision more energetically）When, testing result is directly sent to BMS, BMS by test point 1
Directly disconnect 3 high-voltage relays；Battery bag, high-voltaghe compartment battery and MCU detect the connection feelings of high-tension connector by test point 2
Condition, and send to VCU, if there is connector connection not intact, VCU testing results control BMS makes BMS control 3 high-voltage relays
Act to realize power-off, dynamical system connector failure is sent to instrument and shown by vehicle CAN by VCU.Pass through test point 3
The connection after high-voltaghe compartment output, DC/DC, compressor, PTC 4 high-tension connectors series connection is detected, and is sent to VCU, if
There is connector connection not intact, VCU testing results control BMS makes BMS control corresponding high-voltage relay action, disconnected to realize
Annex high-tension connector failure is sent to instrument and shown by vehicle CAN by electricity, VCU.Detect that trickle charge is defeated by test point 4
Enter, trickle charge output, fill soon 3 high-tension connectors series connection after connection；And send to VCU, if having connector connection not
Intact, VCU testing results control BMS makes BMS control corresponding high-voltage relay action, to realize power-off, VCU passes through vehicle
Charging system connector failure is sent to instrument and shown by CAN.By the above, the complete of vehicle high-pressure system ensure that
Whole property, continuity, and the abnormal disconnection in high tension loop is recognized, the effect of being effectively protected is played to equipment.
According to GB/T 18384.1-2015, GB/T 18384.2-2015, GB/T 18384.3-2015《Electric automobile
Safety requirements》Laws and regulations requirement, the electric elements in pure driven high voltage system should have insulating protection, can pass through insulation, hide
Block, shell and metal otter board etc. prevent directly contact.Protector should be solid and reliable, and mechanical resistant is impacted.Protector is only
It can be opened by instrument or service key or remove and repaired accordingly, safeguarded.And high-tension connector is non-artificial voluntarily breaks
Open and all should not result in vehicle generation danger.
Therefore, design loop should meet following principle：(1) HVIL loop allows for effective, real-time, continuous prison
Survey the on/off situation of whole high tension loop；(2) all high-tension connectors should possess mechanical interlock, and can only be HVIL times
Road could open connector after disconnecting in advance；(3) all high-tension connectors are in the case of non-artificial, it is impossible to be switched on/break
Open；(4) HVIL loop should possess in particular cases directly can detect that HVIL loop directly disconnects height and pushed back at certain by BMS
Road.(5) no matter electric automobile is in any state, and HVIL is when recognizing danger, and vehicle must make alarm to dangerous situation and carry
Show, it is necessary to which instrument or indicator remind driver in the form of sound or light is alarmed.
Technical solutions of the utility model can preferably detect the break-make situation of whole high tension loop, can accomplish to carry in time
Wake up, effectively protection high voltage supply or electrical equipment, be further ensured that the personal safety of personnel.
Different HVIL interlocking loops are detected by VCU, realize that failure subsystem is quoted；HVIL interlocking loops lead to
Cross to connector series connection is detected in homologous ray, reduce the use of VCU pins；Electric automobile during high speed traveling,
When HVIL loop detects that Keep Clear-High Voltage, first by alarm driver, and pass through VCU controls and carry out downrating；
Directly failure is reported targetedly to be handled by instrument after sale.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the application.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of pure electric automobile high-voltage interlocking detection means, is connected in pure electric automobile high-tension line, low pressure detection is included
Battery management system BMS is connected with entire car controller VCU signals in module, malfunction coefficient module, pure electric automobile, its feature
It is, described low pressure detection module includes low-tension supply, low-voltage relay, and low pressure connection line；Described low pressure connection
Circuit includes connection line one, connection line two, connection line three, connection line four, connection line two, connection line three, company
The one end of link four is in parallel, and the low pressure that the other end of connection line two connection high voltage power system is connected with low-voltage relay is detected back
In Lu Erzhong, the low pressure measure loop three that the other end of connection line three connection high pressure accessory system is connected with low-voltage relay, even
In the low pressure measure loop four that the other end of link four connection charging system is connected with low-voltage relay, wherein, anti-collision valve connection
To battery management system BMS, BMS is electrically connected by three high-voltage relays in parallel with the one end of connection line one, connection line
One other end is grounded, and is connected between high voltage power system mesohigh power part connector and is passed through connection line two, vehicle control
Connect and lead between device VCU processed, low-voltage relay formation low pressure measure loop two, high pressure accessory system mesohigh accessory connector
Charging unit in connection line three, entire car controller VCU, low-voltage relay formation low pressure measure loop three, charging system is crossed to connect
Connect between device series connection and by connection line four, entire car controller VCU, low-voltage relay formation low pressure measure loop four；High pressure
Dynamical system, high pressure accessory system, charging system detect corresponding connection by entire car controller VCU respectively and fed back to
Battery management system BMS, battery management system BMS are connected with three high-voltage relay signal wires.
2. pure electric automobile high-voltage interlocking detection means according to claim 1, it is characterised in that low-voltage relay coil
One end is electrically connected with low-tension supply, and the other end is electrically connected with entire car controller VCU, low-voltage relay normal-closed end and low-tension supply electricity
Connection, the normally opened end of low-voltage relay is electrically connected with high voltage power system, high pressure accessory system, charging system respectively.
3. pure electric automobile high-voltage interlocking detection means according to claim 2, it is characterised in that described low pressure relay
Device coil one end is electrically connected by fuse with low-tension supply.
4. the pure electric automobile high-voltage interlocking detection means according to any one of claim 1 ~ 3, it is characterised in that described
Low-tension supply is 12V power supplys.
5. pure electric automobile high-voltage interlocking detection means according to claim 1, it is characterised in that high voltage power part connects
Connect device and include battery packet gateway, high-voltaghe compartment battery connector and micro-control unit MCU connectors；High pressure accessory connector bag
Out connector containing high-voltaghe compartment, DC/DC connectors, AC connectors and PTC connectors；Charging unit connector is defeated comprising trickle charge
Enter connector, trickle charge out connector and fill connector soon.
6. pure electric automobile high-voltage interlocking detection means according to claim 1, it is characterised in that described malfunction coefficient
Module includes the high voltage power system high pressure power part connector malfunction coefficient being connected respectively with entire car controller VCU signals
Unit, high pressure accessory system high pressure accessory connector fault display unit and charging system charging unit connector malfunction coefficient
Unit.
7. pure electric automobile high-voltage interlocking detection means according to claim 6, it is characterised in that described malfunction coefficient
Module also includes the indicator lamp or buzzer reminded for failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720120160.9U CN206456246U (en) | 2017-02-09 | 2017-02-09 | Pure electric automobile high-voltage interlocking detection means |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720120160.9U CN206456246U (en) | 2017-02-09 | 2017-02-09 | Pure electric automobile high-voltage interlocking detection means |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549963A (en) * | 2019-09-10 | 2021-03-26 | 北京新能源汽车股份有限公司 | Method and device for detecting loosening fault of high-voltage connector and automobile |
| CN113650499A (en) * | 2021-07-28 | 2021-11-16 | 岚图汽车科技有限公司 | High-voltage interlocking fault detection and processing method and system |
| CN115366647A (en) * | 2022-09-07 | 2022-11-22 | 中国重汽集团济南动力有限公司 | Power system for electric heavy truck |
| WO2024198708A1 (en) * | 2023-03-30 | 2024-10-03 | 湖南行必达网联科技有限公司 | High-voltage power distribution system of electric vehicle and electric vehicle |
-
2017
- 2017-02-09 CN CN201720120160.9U patent/CN206456246U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112549963A (en) * | 2019-09-10 | 2021-03-26 | 北京新能源汽车股份有限公司 | Method and device for detecting loosening fault of high-voltage connector and automobile |
| CN112549963B (en) * | 2019-09-10 | 2022-05-17 | 北京新能源汽车股份有限公司 | Method and device for detecting loosening fault of high-voltage connector and automobile |
| CN113650499A (en) * | 2021-07-28 | 2021-11-16 | 岚图汽车科技有限公司 | High-voltage interlocking fault detection and processing method and system |
| CN115366647A (en) * | 2022-09-07 | 2022-11-22 | 中国重汽集团济南动力有限公司 | Power system for electric heavy truck |
| CN115366647B (en) * | 2022-09-07 | 2024-08-09 | 中国重汽集团济南动力有限公司 | Power system for electric heavy truck |
| WO2024198708A1 (en) * | 2023-03-30 | 2024-10-03 | 湖南行必达网联科技有限公司 | High-voltage power distribution system of electric vehicle and electric vehicle |
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