CN106799968A - Motor vehicle driven by mixed power high-voltage interlocking loop based on security strategy(HVIL)Design - Google Patents

Motor vehicle driven by mixed power high-voltage interlocking loop based on security strategy(HVIL)Design Download PDF

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Publication number
CN106799968A
CN106799968A CN201510836477.8A CN201510836477A CN106799968A CN 106799968 A CN106799968 A CN 106799968A CN 201510836477 A CN201510836477 A CN 201510836477A CN 106799968 A CN106799968 A CN 106799968A
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CN
China
Prior art keywords
loop
controller
voltage
hcu
hvil
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Pending
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CN201510836477.8A
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Chinese (zh)
Inventor
廖明
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Hebei Eco-Ev Science And Technology Co Ltd
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Hebei Eco-Ev Science And Technology Co Ltd
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Publication date
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Priority to CN201510836477.8A priority Critical patent/CN106799968A/en
Publication of CN106799968A publication Critical patent/CN106799968A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04Cutting off the power supply under fault conditions

Abstract

The present invention is designed in the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy, and the technical problem to be solved is to provide a kind of more effective more reliable safety prevention measure.Motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design based on security strategy is made up of 2 tunnel high-voltage interlocking signal detections.First via signal starts controller HCU the parts such as electric generator controller BMCU, DC-DC, drive motor controller MCU, charger and connects the high-voltage line plug both positive and negative polarity series connection of battery bag together as a loop;Controller HCU is started electric generator controller BMCU by second road signal, and the high-voltage plug both positive and negative polarity of drive motor controller MCU, DC-DC and charger the machine is cascaded, and forms loop.Hybrid controller HCU real-time monitorings this 2 loop signals, in the case of any one loop signal exception, cutting overall height piezoelectricity, it is ensured that the security of vehicle.

Description

Motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design based on security strategy
Technical field
Motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design the present invention relates to be based on security strategy, it is adaptable to mixed Close the high-voltage interlocking loop signal detection of power vehicle, it is ensured that safety.
Background technology
HVIL (High Voltage Interlock Loop) is high-voltage interlocking loop, is sent by Sources controlling device HCU One low voltage signal of 12V, with high-voltage cable, flows through high-voltage part, returns again to Sources controlling device, this Just form one " loop ".For hybrid vehicle (mixing of oil electricity) system, vehicle all carries high-tension battery bag Powered to motor TM and startup electric generator BSG, there was only high-voltage interlocking all the way in common hybrid vehicle system Signal detection, and this all the way high-voltage interlocking signal detection detected just for the signal for flowing through high-tension battery bag bus, Without being detected to other high voltage parts, if other high voltage parts outlets electric leakage, short circuit, open circuit ask Topic, hybrid controller is not received by fault-signal, and still sends work order to related components, and this will High pressure can be caused to leak electricity, cause parts to burn, vehicle damage, or even cause personnel to injure.
The content of the invention
The present invention is designed in the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy, the technical problem to be solved It is to provide a kind of more effective more reliable safety prevention measure.A low-voltage of 12V is sent by Sources controlling device HCU to believe Number, with high-voltage cable, all of high voltage parts are flowed through, Sources controlling device is returned again to, this just forms one " loop ".The controller HCU moment monitors the state of this 12V signal circuit, if this loop is broken, that HCU is attended school less than the 12V signals for returning, and this may be the state that high voltage bus occurs in that "off", and this is danger Dangerous situation.HCU and other high pressure electric parts must at once take responsive measures, by the dual hand of hardware and software Section, will electricity under high-tension system, and the remaining capacity on bus bled off as early as possible.Make whole high-tension system rapid Into safe condition.
Motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design based on security strategy is examined by 2 tunnel high-voltage interlocking signals Survey composition.Controller HCU is started electric generator controller BMCU, DC-DC, motor control by first via signal The high-voltage line plug both positive and negative polarity that the parts such as device MCU, charger connect battery bag is connected together as a loop;Believe on the second road Number controller HCU, start electric generator controller BMCU, drive motor controller MCU, DC-DC and charger sheet The high-voltage plug both positive and negative polarity of machine is cascaded, and forms loop.Hybrid controller HCU real-time monitorings this 2 are returned Road signal, in the case of any one loop signal exception, cutting overall height piezoelectricity, it is ensured that the security of vehicle.
The present invention is designed in the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy, can be high in vehicle Make each parts normal work on the premise of piezoelectricity circuit normal work, while 2 road high-voltage interlockings return path control deivce HCU real-time monitorings, find the timely cutoff high electricity of abnormal signal, it is ensured that safety, meet mixed power electric car safety It is required that and road vehicle Functional Safety Standard.
The present invention is designed in the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy, reliable and practical, phase Than in prior art, the high-tension system safety guarantee performance of motor vehicle driven by mixed power can be significantly improved, in hybrid power It is novel prominent in whole vehicle system control strategy.
Brief description of the drawings
Fig. 1 is electrical connection schematic diagram of the invention.
Specific embodiment
The present invention is designed in the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy, by Sources controlling device HCU sends a low voltage signal of 12V, with high-voltage cable, flows through all of high voltage parts, returns again to Sources controlling device, this is just formed in one " loop ".The controller HCU moment monitors the state of this 12V signal circuit, If this loop is broken, then HCU is attended school less than the 12V signals for returning, this may be that high voltage bus occurs The state of "off", this is unsafe condition.HCU and other high pressure electric parts must at once take responsive measures, By the two methodses of hardware and software, will electricity under high-tension system, and the remaining capacity on bus bled off as early as possible. Whole high-tension system is set to quickly enter safe condition.
In all high-tension systems, high-tension battery bag is high-tension electricity source, is also the place for being easiest to out danger, therefore, High-tension battery bag and HCU are independently formed into a loop, this is " Primary HVIL Loop ", and basic high pressure is mutual Lock loop.Remaining high-voltage electrical systems and parts and HCU are re-formed into a loop, referred to as " Secondary HVIL Loop ", secondary high pressure interlocking loop.HCU monitors this 2 high-voltage interlocking loops simultaneously, if any one goes out Existing " open circuit ", will forbidden energy high-tension system.
Battery management system BMS must also possess the function in self detection HVIL high-voltage interlockings loop, and can use hardware machine System forces to disconnect high-tension battery bag main contactor.That is, when " basic high-voltage interlocking loop " disconnects, even if HCU There is no any action, BMS also can be responded voluntarily, disconnect the connection of high-tension battery bag and high-tension electricity bus, bleed off high pressure Remaining capacity on goddess of lightning's line, makes high-tension system enter benign state.
The specific strategy in HCU monitorings HVIL high-voltage interlockings loop is:
1) 12V power supply status are first determined whether after electricity on HCU, because the 12V power supplys of stabilization can just ensure to send one by HCU Normal 12V power supply signals give HVIL high-voltage interlockings loop.
2) after 12V power goods, HCU will judge whether " basic high-voltage interlocking loop " is interrupted.If " basic high pressure is mutual Lock loop " is interrupted, and is exactly non-secure states, and such HCU must refrain from sending high-tension electricity to battery management system BMS " connection " is instructed to electricity on high voltage bus.If battery management system BMS has been " connection " state, HCU needs "off" instruction is sent, high-tension electricity is disconnected.Meanwhile, HCU inside sets " basic high-voltage interlocking loop " malfunction, Vehicle pattern is forced into " traditional power pattern ".All high-voltage electrical systems are disabled.
3) HCU will also judge whether " secondary high pressure interlocking loop " is interrupted simultaneously, if " secondary high pressure interlocking loop " Interrupt, be also non-secure states, HCU also must refrain from sending high-tension electricity " connection " to battery management system BMS and refer to Make to electricity on high voltage bus.If battery management system BMS has been " connection " state, HCU needs to send "off" Instruction, disconnects high-tension electricity.Meanwhile, HCU inside sets " secondary high pressure interlocking loop " malfunction, and vehicle pattern is strong System enters " traditional power pattern ".All high-voltage electrical systems are disabled.

Claims (5)

1. motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) of the present invention based on security strategy is designed, it is characterised in that It is made up of 2 tunnel high-voltage interlocking signal detections.First via signal controller HCU, start electric generator controller BMCU, The high-voltage line plug both positive and negative polarity series connection one that the parts such as DC-DC, drive motor controller MCU, charger connect battery bag is acted as It is a loop;Controller HCU is started electric generator controller BMCU, drive motor controller by second road signal The high-voltage plug both positive and negative polarity of MCU, DC-DC and charger the machine is cascaded, and forms loop.Hybrid controller HCU real-time monitorings this 2 loop signals, in the case of any one loop signal exception, cutting overall height piezoelectricity, Ensure the security of vehicle.
2. motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design based on security strategy according to claim 1, It is characterized in that:Controller HCU is started electric generator controller BMCU, DC-DC, motor by first via signal The high-voltage line plug both positive and negative polarity that the parts such as controller MCU, charger connect battery bag is connected together as a loop.
3. motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) design based on security strategy according to claim 1, It is characterized in that:Controller HCU is started electric generator controller BMCU, drive motor controller by second road signal The high-voltage plug both positive and negative polarity of MCU, DC-DC and charger the machine is cascaded, and forms loop.
4. the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy according to claim 1,2,3 Design, it is characterised in that:Hybrid controller HCU real-time monitorings this 2 loop signals, in any one loop In the case of abnormal signal, cutting overall height piezoelectricity, it is ensured that the security of vehicle.
5. the motor vehicle driven by mixed power high-voltage interlocking loop (HVIL) based on security strategy according to claim 1,2,3,4 Design, it is characterised in that:On hybrid controller HCU after electricity, first determine whether whether 12V voltages are stablized, then HCU sends 12V voltage signals to 2 road high-voltage interlocking loops, checks whether high-tension line is normal.In 2 tunnel high tension loops After normal, HCU sends link order to battery management system BMS and electric machine control system MCU again, to each high pressure zero Part supplies high-tension electricity.
CN201510836477.8A 2015-11-26 2015-11-26 Motor vehicle driven by mixed power high-voltage interlocking loop based on security strategy(HVIL)Design Pending CN106799968A (en)

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CN201510836477.8A CN106799968A (en) 2015-11-26 2015-11-26 Motor vehicle driven by mixed power high-voltage interlocking loop based on security strategy(HVIL)Design

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CN201510836477.8A CN106799968A (en) 2015-11-26 2015-11-26 Motor vehicle driven by mixed power high-voltage interlocking loop based on security strategy(HVIL)Design

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CN106799968A true CN106799968A (en) 2017-06-06

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980045833U (en) * 1996-12-27 1998-09-25 배순훈 Condenser Structure of Air Conditioner
CN201961160U (en) * 2010-11-29 2011-09-07 北京汽车新能源汽车有限公司 High tension electricity safety device of electric vehicle
CN202138321U (en) * 2011-07-11 2012-02-08 重庆长安汽车股份有限公司 Connecting structure of high-voltage interlocking line for electric automobile
CN202923410U (en) * 2012-10-23 2013-05-08 广州汽车集团股份有限公司 High-voltage protection system of power battery and vehicle
WO2014030914A1 (en) * 2012-08-22 2014-02-27 에스케이이노베이션 주식회사 Power relay assembly for electric vehicle, and method for operating energy system for electric vehicle provided with the power relay assembly
CN203800515U (en) * 2014-01-27 2014-08-27 上汽通用五菱汽车股份有限公司 High-voltage power distribution box with interlocking protection function
US20150021984A1 (en) * 2013-07-16 2015-01-22 Hyundai Motor Company System and method for controlling energy under interlock of eco-friendly vehicle
CN205344543U (en) * 2015-11-26 2016-06-29 河北优控新能源科技有限公司 A hybrid vehicle high -pressure interlocking return circuit (HVIL) based on security policy

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980045833U (en) * 1996-12-27 1998-09-25 배순훈 Condenser Structure of Air Conditioner
CN201961160U (en) * 2010-11-29 2011-09-07 北京汽车新能源汽车有限公司 High tension electricity safety device of electric vehicle
CN202138321U (en) * 2011-07-11 2012-02-08 重庆长安汽车股份有限公司 Connecting structure of high-voltage interlocking line for electric automobile
WO2014030914A1 (en) * 2012-08-22 2014-02-27 에스케이이노베이션 주식회사 Power relay assembly for electric vehicle, and method for operating energy system for electric vehicle provided with the power relay assembly
CN202923410U (en) * 2012-10-23 2013-05-08 广州汽车集团股份有限公司 High-voltage protection system of power battery and vehicle
US20150021984A1 (en) * 2013-07-16 2015-01-22 Hyundai Motor Company System and method for controlling energy under interlock of eco-friendly vehicle
CN203800515U (en) * 2014-01-27 2014-08-27 上汽通用五菱汽车股份有限公司 High-voltage power distribution box with interlocking protection function
CN205344543U (en) * 2015-11-26 2016-06-29 河北优控新能源科技有限公司 A hybrid vehicle high -pressure interlocking return circuit (HVIL) based on security policy

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Application publication date: 20170606