CN110053519A - A kind of fuel battery passenger car insulating monitoring control system, method and vehicle - Google Patents
A kind of fuel battery passenger car insulating monitoring control system, method and vehicle Download PDFInfo
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- CN110053519A CN110053519A CN201910335412.3A CN201910335412A CN110053519A CN 110053519 A CN110053519 A CN 110053519A CN 201910335412 A CN201910335412 A CN 201910335412A CN 110053519 A CN110053519 A CN 110053519A
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- module
- insulating monitoring
- vehicle
- monitoring
- insulating
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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
- B60L3/04—Cutting off the power supply under fault conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
-
- 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
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
Present disclose provides a kind of fuel battery passenger car insulating monitoring control system, method and vehicles, including the load of fuel cell module, auxiliary power battery module, non-isolated boost DC/DC, insulating monitoring module, vehicle and controller；The auxiliary power battery module is directly used in the power supply of vehicle load, and non-isolated boost DC/DC is used to be converted to the low-voltage platform electricity that fuel cell module issues after high voltage platform electricity to vehicle load supplying；The insulating monitoring module includes the first insulating monitoring module and the second insulating monitoring module, first insulating monitoring module is used to carry out non-isolated boost DC/DC input front end circuit insulating monitoring, and the second insulating monitoring module is used to carry out insulating monitoring to non-isolated boost DC/DC output back-end circuit；The controller is for the data communication with modules；It solves the problems, such as to be operating abnormally using the inconsistent caused vehicle of insulating monitoring standard of the fuel-cell vehicle of non-isolated boost DC/DC.
Description
Technical field
This disclosure relates to the design of fuel electric motor coach and manufacturing field, in particular to a kind of fuel battery passenger car insulation prison
Survey control system, method and vehicle.
Background technique
The statement of this part only there is provided background technique relevant to the disclosure, not necessarily constitutes the prior art.
Currently, fuel battery passenger car is mainly dynamic as the mixing of energy source using fuel cell-equipped and auxiliary power battery
Power type, fuel cell module output voltage are generally 200V or so, and voltage platform is lower, need voltage through boost DC/DC
It is increased to voltage platform identical as auxiliary power battery, drives vehicle jointly.Boost DC/DC generally uses BOOST circuit structure,
Be divided into isolated form and non-isolation type, isolated form because volume is larger, efficiency is relatively low, high expensive, while based on vehicle space, efficiently
Conversion and vehicle cost performance consider that the overwhelming majority uses non-isolation type boost DC/DC.Using non-isolation type boost DC/DC vehicle,
Because fuel cell high-tension circuit and power battery and vehicle high-voltage load are connected together, the current fuel cell itself of one side
It insulate relatively relatively low, is easy to reach insulation safety value lower limit and causes vehicle drop power or shutdown, influence the operation of vehicle；Another party
Face can bring the difference of insulating monitoring early warning limit value, it is difficult to take into account because of the difference of boost DC/DC both end voltage platform.
Present inventor has found under study for action, and the difference of insulation judgement can be brought using non-isolated boost DC/DC, according to
" GB/T18384.3-2015 electric car safety requirements third portion: personnel's prevention of electric shock " 6.7.1 requirement: if direct current and friendship
The B step voltage circuit of stream is conductive to be connected together, then circuit at least meets 500 Ω/V requirement.It is provided according to this,
Non-isolated boost DC/DC input terminal, i.e. fuel cell end, if maximum output voltage is 300V, insulation resistance at least needs to meet
150KΩ；In non-isolated boost DC/DC output end, general maximum voltage is calculated according to power battery maximum voltage, such as 600V, then
Insulation resistance at least needs to meet 300K Ω.The standard that the difference of both ends maximum voltage results in insulating monitoring alarming value is different, if
Power battery end is only taken into account, using 300K Ω early warning, because fuel cell insulation resistance is generally relatively low, will lead to alarm frequently, shadow
Ring car operation；If only taking into account fuel cell end, using 150K Ω early warning, then insulation values judgement in power battery end is lower than country's mark
Alignment request has certain security risk.
Summary of the invention
In order to solve the deficiencies in the prior art, present disclose provides a kind of fuel battery passenger car insulating monitorings to control system
System, method and vehicle preferably resolve inconsistent using the insulating monitoring standard of the fuel-cell vehicle of non-isolated boost DC/DC
Caused vehicle is operating abnormally problem, it is ensured that vehicle operation is neither influenced when fuel cell unilaterally Insulation Problems occurs,
Also ensure vehicle insulated monitoring safety.
To achieve the goals above, the disclosure adopts the following technical scheme that
In a first aspect, present disclose provides a kind of fuel battery passenger car insulating monitoring control systems；
A kind of fuel battery passenger car insulating monitoring control system, including fuel cell module, auxiliary power battery module,
Non-isolated boost DC/DC, insulating monitoring module, vehicle load and controller；The auxiliary power battery module is directly used in vehicle
The power supply of load, the non-isolated boost DC/DC are used to the low-voltage platform electricity that fuel cell module issues being converted to high voltage
Vehicle load supplying is given after platform electricity；The insulating monitoring module includes the first insulating monitoring module and the second insulating monitoring mould
Block, the first insulating monitoring module are used to carry out insulating monitoring, the second insulating monitoring to non-isolated boost DC/DC input front end circuit
Module is used to carry out insulating monitoring to non-isolated boost DC/DC output back-end circuit；The controller respectively with fuel cell mould
Block, insulating monitoring module, non-isolated boost DC/DC and the communication connection of auxiliary power battery module, for realizing insulating monitoring control
System.
It further include pre-charge module, including the first pre-charge module, the second precharge as possible some implementations
Module and third pre-charge module, after the output cathode of the fuel cell module is connect with the first pre-charge module, with it is non-every
Input anode connection from boost DC/DC, the input cathode of non-isolated boost DC/DC and the output negative pole of fuel cell module connect
It connects；
It is and auxiliary after the output cathode of non-isolated boost DC/DC is sequentially connected the second pre-charge module, third pre-charge module
The anode connection for helping power battery module, after auxiliary power battery module cathode is connect with the 4th high-voltage switch gear, connects non-isolated
Boost DC/DC output negative pole；
One end of the vehicle load is connect with the second pre-charge module and third pre-charge module respectively, other end difference
It is connect with the cathode of auxiliary power battery module and the 4th high-voltage switch gear；
The positive and negative end of input that first insulating monitoring module is separately connected non-isolated boost DC/DC by the first two-way switch,
Second insulating monitoring module is separately connected vehicle by the second two-way switch and loads both ends, for exporting to non-isolated boost DC/DC
Back-end circuit carries out insulating monitoring.
As possible some implementations, first pre-charge module is pressed off including the first high-voltage switch gear, the 5th height
It is in parallel with the first high-voltage switch gear after pass and the first pre-charge resistance, the 5th high-voltage switch gear and the series connection of the first pre-charge resistance；
Second pre-charge module includes the second high-voltage switch gear, the 6th high-voltage switch gear and the second pre-charge resistance, described
It is in parallel with the second high-voltage switch gear after 6th high-voltage switch gear and the series connection of the second pre-charge resistance；
The third pre-charge module includes third high-voltage switch gear, the 7th high-voltage switch gear and third pre-charge resistance, described
It is in parallel with third high-voltage switch gear after 7th high-voltage switch gear and the series connection of third pre-charge resistance.
As possible some implementations, the vehicle load includes all electrical components of vehicle.
Second aspect, present disclose provides a kind of high pressures to power on insulating monitoring control method；
A kind of high pressure powers on insulating monitoring control method, and steps are as follows:
Closure second and the 4th high-voltage switch gear, then carry out upper electric control to third pre-charge module, then to the first preliminary filling
Electric module carries out electric control；
First insulating monitoring module controls the first two-way switch closure, and the first insulating monitoring module starts to execute insulation prison
It surveys；
If the monitoring of the first insulating monitoring insulation module is abnormal, lower than the lower limit that vehicle allows, then controller is alarmed, and forbids going
Vehicle.
As possible some implementations, if the monitoring of the first insulating monitoring insulation module is normal, the first insulating monitoring mould
Block controls the first two-way switch and disconnects, and the second insulating monitoring module controls the second two-way switch closure, the second insulating monitoring module
Start to execute insulating monitoring work；
If the monitoring of the second insulating monitoring insulation module is abnormal, lower than the lower limit that vehicle allows, then controller is alarmed, and forbids going
Vehicle；
If the monitoring of the second insulating monitoring insulation module is normal, the second insulating monitoring module controls the holding of the second two-way switch and closes
Merging continues to monitor, and vehicle normal operating and can be run.
As possible some implementations, it is defeated that the first insulating monitoring module monitors Abnormal Insulation standard is based on fuel cell
Low-voltage platform out, high voltage of the second insulating monitoring module monitors Abnormal Insulation standard based on auxiliary power battery module are flat
Platform.
As possible some implementations, the low monitoring needs that insulate certain duration has just been regarded as insulation
Failure exception.
The third aspect, present disclose provides a kind of insulating monitoring exception control methods in operational process；
A kind of insulating monitoring exception control method in operational process, steps are as follows:
If the second insulating monitoring insulation module monitors persistent anomaly, controller sends standby command to fuel cell module；
After fuel cell module is standby, controller control second and the 4th high-voltage switch gear are disconnected, and are closed the first two-way switch,
First insulating monitoring module intervenes insulating monitoring work；
If the monitoring of the second insulating monitoring insulation module is still abnormal, controller limits power output to zero, disconnects third
High-voltage switch gear, and send fault message and remind driver's parking checking.
It as possible some implementations, is eliminated if the monitoring of the second insulating monitoring insulation module is abnormal, the first insulation prison
Surveying insulation module monitoring has persistent anomaly, then controller control second and the 4th high-voltage switch gear remain open, and send shutdown and refer to
It enables to fuel cell module, sends fault message to instrument prompt driver and only have auxiliary power battery module at present in maintenance drive
It is dynamic；After fuel cell module is shut down, the first high-voltage switch gear is disconnected, vehicle is continued to run by auxiliary power battery module, prevented
Vehicle casts anchor.
It as possible some implementations, is eliminated if the monitoring of the second insulating monitoring insulation module is abnormal, the first insulation prison
Insulation module monitoring is surveyed without persistent anomaly, then the second insulating monitoring module controls the second two-way switch and disconnects, controller control the
Four high-voltage switch gears closure, the high pressure that the second pre-charge module of control completes non-isolated boost DC/DC power on, and vehicle restores conventional fortune
Row mode, fuel cell module intervention operate normally, and the first insulating monitoring module is responsible for vehicle insulating monitoring according to its standard.
As possible some implementations, it is defeated that the first insulating monitoring module monitors Abnormal Insulation standard is based on fuel cell
Low-voltage platform out, high voltage of the second insulating monitoring module monitors Abnormal Insulation standard based on auxiliary power battery module are flat
Platform.
As possible some implementations, the low monitoring needs that insulate certain duration has just been regarded as insulation
Failure exception.
Fourth aspect, present disclose provides a kind of vehicles, including fuel battery passenger car insulating monitoring described in the disclosure
Control system.
Compared with prior art, the beneficial effect of the disclosure is:
Content described in the disclosure is preferable to solve by the first insulating monitoring module of setting and the second insulating monitoring module
What vehicle caused by the insulating monitoring standard inconsistence problems using the fuel-cell vehicle of non-isolated boost DC/DC was operating abnormally
Problem, it is ensured that neither influence vehicle operation when fuel cell unilaterally Insulation Problems occurs, also ensure that vehicle insulated monitoring is pacified
Entirely.
Content described in the disclosure passes through the control of entire car controller by the first, second, and third pre-charge module of setting
System, realizes the handoff-security to the first and second insulating monitoring modules, greatly improves the safety of monitoring system.
Insulating monitoring control method when content described in the disclosure is powered on by designing high pressure, realizes and powers on to high pressure
I.e. vehicle launch when insulating monitoring, if any exception, alarm stops the starting of vehicle in time, to prevent automobile belt fault initiating
Brought security risk reduces the generation of safety accident.
Content described in the disclosure passes through insulating monitoring exception control method during design and operation, realizes vehicle operation
Insulation overall monitor in the process, when the first insulating monitoring module and/or the second insulating monitoring module exception, starting is supervised in time
Ranging sequence, when fuel cell module exception, the power supply of timely fuel shutoff battery module, and alarm letter is issued to driver in time
Breath, time and the space of operation are reserved to driver, to carry out car inspection and repair in time, greatly reduce thing in vehicle operation
Therefore the probability occurred.
Detailed description of the invention
Fig. 1 is fuel battery passenger car insulating monitoring control system circuit schematic diagram described in the embodiment of the present disclosure 1.
Fig. 2 is insulating monitoring control method flow diagram when high pressure described in the embodiment of the present disclosure 2 powers on.
Fig. 3 is insulating monitoring exception control method flow schematic diagram in operational process described in the embodiment of the present disclosure 3.
1- fuel cell module；The first pre-charge module of 2-；The second pre-charge module of 3-；4- third pre-charge module；5-
Auxiliary power battery module；6- entire car controller；The load of 7- vehicle；8- the second insulating monitoring module；The non-isolated boost DC/DC of 9-；
10- the first insulating monitoring module.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Embodiment 1:
As described in Figure 1, the embodiment of the present disclosure 1 provides a kind of fuel battery passenger car insulating monitoring control system, including
Fuel cell module 1, auxiliary power battery module 5, non-isolated boost DC/DC 9, insulating monitoring module (8,10), vehicle load 7
With entire car controller 6；The vehicle load 7 includes all electrical components of vehicle, and 5 module of auxiliary power battery is directly used
In the power supply of vehicle load 7, the low-voltage platform electricity that the non-isolated boost DC/DC 9 is used to issue fuel cell module 1 turns
Give vehicle load 7 power supply after being changed to high voltage platform electricity；Insulating monitoring module is for lasting or indirectly progress system insulation
Situation, the insulating monitoring module include the first insulating monitoring module 10 and the second insulating monitoring module 8, the first insulating monitoring mould
Block 10 be used for non-isolated 9 input front end circuit of boost DC/DC carry out insulating monitoring, the second insulating monitoring module 8 be used for it is non-every
Back-end circuit, which is exported, from boost DC/DC 9 carries out insulating monitoring；The entire car controller 6 is supervised with fuel cell module 1, insulation respectively
Module (8,10), non-isolated boost DC/DC 9 and auxiliary power battery module 5 is surveyed to communicate to connect by CAN bus, it is logical for data
News and realization insulating monitoring control, are responsible for the function control and coordination of insulated monitoring.
It further include pre-charge module, including the first pre-charge module, the second pre-charge module and third pre-charge module, institute
State fuel cell module 1 output cathode connect with the first pre-charge module 2 after, with the input of non-isolated boost DC/DC 9 anode
Connection, the input cathode of non-isolated boost DC/DC 9 are connect with the output negative pole of fuel cell module 1；
After the output cathode of non-isolated boost DC/DC 9 is sequentially connected the second pre-charge module 3, third pre-charge module 4, with
The anode connection of auxiliary power battery module 5, after 5 cathode of auxiliary power battery module is connect with the 4th high-voltage switch gear, connects non-
Isolation boosting DCDC9 output negative pole；
One end of the vehicle load 7 is connect with the second pre-charge module 3 and third pre-charge module 4 respectively, the other end
It is connect respectively with the cathode of auxiliary power battery module 5 and the 4th high-voltage switch gear (K4)；
First insulating monitoring module logical 10 crosses the first two-way switch two-way switch (K5) and is separately connected non-isolated boost DC/DC 9
The positive and negative end of input, the second insulating monitoring module 8 by the second two-way switch (K6) be separately connected vehicle load 7 both ends, be used for
Insulating monitoring is carried out to non-isolated boost DC/DC 9 output back-end circuit.
First pre-charge module 2 includes the first high-voltage switch gear (K1), the 5th high-voltage switch gear (K11) and the first precharge
After resistance (R1), the 5th high-voltage switch gear (K11) and the first pre-charge resistance (R1) series connection simultaneously with the first high-voltage switch gear (K1)
Connection；
Second pre-charge module 3 includes the second high-voltage switch gear (K2), the 6th high-voltage switch gear (K22) and the second precharge
After resistance (R2), the 6th high-voltage switch gear (K22) and the second pre-charge resistance (R2) series connection simultaneously with the second high-voltage switch gear (K2)
Connection；
The third pre-charge module 4 includes third high-voltage switch gear (K3), the 7th high-voltage switch gear (K33) and third precharge
After resistance (R3), the 7th high-voltage switch gear (K33) and third pre-charge resistance (R3) series connection simultaneously with third high-voltage switch gear (K3)
Connection.
Embodiment 2:
As shown in Fig. 2, the embodiment of the present disclosure 2, which provides a kind of high pressure, powers on insulating monitoring control method, embodiment 1 is utilized
Fuel battery passenger car insulating monitoring control system, steps are as follows:
It is closed the second high-voltage switch gear (K2) and the 4th high-voltage switch gear (K4), then third pre-charge module 7 is powered on
Control, then upper electric control is carried out to the first pre-charge module 2；
First insulating monitoring module 10 controls the first two-way switch (K5) closure, and the first insulating monitoring module 10 starts to execute
Insulating monitoring；
If 10 insulating monitoring of the first insulating monitoring module is abnormal, lower than the lower limit that vehicle allows, then entire car controller is alarmed,
Forbid driving a vehicle.
If 10 insulating monitoring of the first insulating monitoring module is normal, the first insulating monitoring module 10 controls the first two-way switch
(K5) it disconnects, the second insulating monitoring module 8 controls the second two-way switch (K6) closure, and the second insulating monitoring module 8 starts to execute
Insulating monitoring work；
If 8 insulating monitoring of the second insulating monitoring module is abnormal, lower than the lower limit that vehicle allows, then entire car controller is alarmed,
Forbid driving a vehicle；
If 8 insulating monitoring of the second insulating monitoring module is normal, the second insulating monitoring module 8 controls the second two-way switch (K6)
It remains closed and continues to monitor, vehicle normal operating and can be run.
The low-voltage platform that first insulating monitoring module monitors Abnormal Insulation standard is exported based on fuel cell, the second insulation
High voltage platform of the monitoring module monitors Abnormal Insulation standard based on auxiliary power battery module；Simultaneously in view of Insulation Problems
Accidental or wrong report is possible, and the low monitoring needs that insulate certain duration has just been regarded as insulation fault exception.
Embodiment 3:
As shown in figure 3, the embodiment of the present disclosure 3 provides a kind of insulating monitoring exception control method in operational process, utilize
Fuel battery passenger car described in embodiment 1 insulating monitoring control system, steps are as follows:
If 8 insulating monitoring persistent anomaly of the second insulating monitoring module, entire car controller 6 sends standby command to fuel cell
Module；
After fuel cell module 1 is standby, entire car controller 6 controls the second high-voltage switch gear (K2) and the 4th high-voltage switch gear (K4)
It disconnects, is closed the first two-way switch (K5), the first insulating monitoring module 10 intervenes insulating monitoring work；
If 8 insulating monitoring of the second insulating monitoring module is still abnormal, entire car controller 6 limits power output to zero, breaks
Third high-voltage switch gear (K3) is opened, and sends fault message and reminds driver's parking checking to instrument board.
If 8 insulating monitoring of the second insulating monitoring module is eliminated extremely, 10 insulating monitoring of the first insulating monitoring module, which has, to be continued
Abnormal, then entire car controller 6 controls the second high-voltage switch gear (K2) and the 4th high-voltage switch gear (K4) remains open, and sends shutdown and refer to
It enables to fuel cell module 1, sending fault message, only auxiliary power battery module 5 is being tieed up at present to instrument board prompt driver
Hold driving；It after fuel cell module 1 is shut down, disconnects the first high-voltage switch gear (K1), vehicle continues by auxiliary power battery module
Operation, prevents vehicle from casting anchor.
If 8 insulating monitoring of the second insulating monitoring module is eliminated extremely, 10 insulating monitoring of the first insulating monitoring module is without lasting
Abnormal, then the second insulating monitoring module 8 control the second two-way switch (K6) disconnects, and entire car controller 6 controls the 4th high-voltage switch gear
(K4) it is closed, the high pressure that the second pre-charge module 3 of control completes non-isolated boost DC/DC powers on, and vehicle restores conventional operation mould
Formula, the intervention of fuel cell module 1 operate normally, and the first insulating monitoring module 10 is responsible for vehicle insulating monitoring according to its standard.
The low-voltage platform that first insulating monitoring module monitors Abnormal Insulation standard is exported based on fuel cell, the second insulation
High voltage platform of the monitoring module monitors Abnormal Insulation standard based on auxiliary power battery module；Simultaneously in view of Insulation Problems
Accidental or wrong report is possible, and the low monitoring needs that insulate certain duration has just been regarded as insulation fault exception.
Embodiment 4:
The disclosure additionally provides a kind of vehicle, including fuel battery passenger car insulating monitoring described in the embodiment of the present disclosure 1
Control system.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the spirit and principle of the disclosure, it is made any to repair
Change, equivalent replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. a kind of fuel battery passenger car insulating monitoring control system, which is characterized in that including fuel cell module, auxiliary power
Battery module, non-isolated boost DC/DC, insulating monitoring module, vehicle load and controller；The auxiliary power battery module is straight
The power supply for vehicle load is connect, the low-voltage platform electricity that the non-isolated boost DC/DC is used to issue fuel cell module turns
It is changed to after high voltage platform electricity to vehicle load supplying；The insulating monitoring module includes that the first insulating monitoring module and second are exhausted
Edge monitoring modular, the first insulating monitoring module be used for non-isolated boost DC/DC input front end circuit carry out insulating monitoring, second
Insulating monitoring module is used to carry out insulating monitoring to non-isolated boost DC/DC output back-end circuit；The controller respectively with fuel
Battery module, insulating monitoring module, non-isolated boost DC/DC and the communication connection of auxiliary power battery module, for realizing insulation prison
Observing and controlling system.
2. fuel battery passenger car as described in claim 1 insulating monitoring control system, which is characterized in that further include precharge
Module, including the first pre-charge module, the second pre-charge module and third pre-charge module, the output of the fuel cell module
Anode connect with the first pre-charge module after, connect with the input anode of non-isolated boost DC/DC, non-isolated boost DC/DC it is defeated
The output negative pole for entering cathode and fuel cell module connects；
It is dynamic with auxiliary after the output cathode of non-isolated boost DC/DC is sequentially connected the second pre-charge module, third pre-charge module
The anode connection of power battery module, after auxiliary power battery module cathode is connect with the 4th high-voltage switch gear, connects non-isolated boosting
DCDC output negative pole；
One end of vehicle load is connect with the second pre-charge module and third pre-charge module respectively, the other end respectively with it is auxiliary
Help cathode and the connection of the 4th high-voltage switch gear of power battery module；
First insulating monitoring module is positive and negative by the input that the first two-way switch two-way switch is separately connected non-isolated boost DC/DC
End, the second insulating monitoring module are separately connected vehicle by the second two-way switch and load both ends.
3. fuel battery passenger car as claimed in claim 2 insulating monitoring control system, which is characterized in that first preliminary filling
Electric module includes the first high-voltage switch gear, the 5th high-voltage switch gear and the first pre-charge resistance, and the 5th high-voltage switch gear and first is in advance
It is in parallel with the first high-voltage switch gear after charging resistor series connection；
Second pre-charge module include the second high-voltage switch gear, the 6th high-voltage switch gear and the second pre-charge resistance, the described 6th
It is in parallel with the second high-voltage switch gear after high-voltage switch gear and the series connection of the second pre-charge resistance；
The third pre-charge module includes third high-voltage switch gear, the 7th high-voltage switch gear and third pre-charge resistance, and the described 7th
It is in parallel with third high-voltage switch gear after high-voltage switch gear and the series connection of third pre-charge resistance.
4. fuel battery passenger car as claimed in claim 2 insulating monitoring control system, which is characterized in that the vehicle load
Including all electrical components of vehicle.
5. a kind of fuel battery passenger car as claimed in claim 3 powers on insulating monitoring control with the high pressure of insulating monitoring control system
Method processed, which is characterized in that steps are as follows:
Then closure second and the 4th high-voltage switch gear carry out upper electric control to third pre-charge module, then to the first precharge mould
Block carries out electric control；
First insulating monitoring module controls the first two-way switch closure, and the first insulating monitoring module starts to execute insulating monitoring；
If the monitoring of the first insulating monitoring insulation module is abnormal, lower than the lower limit that vehicle allows, then controller is alarmed, and forbids driving a vehicle.
6. high pressure as claimed in claim 5 powers on insulating monitoring control method, which is characterized in that
If the monitoring of the first insulating monitoring insulation module is normal, the first insulating monitoring module controls the first two-way switch and disconnects, second
Insulating monitoring module controls the second two-way switch closure, and the second insulating monitoring module starts to execute insulating monitoring work；
If the monitoring of the second insulating monitoring insulation module is abnormal, lower than the lower limit that vehicle allows, then controller is alarmed, and forbids driving a vehicle；
If the monitoring of the second insulating monitoring insulation module is normal, the second insulating monitoring module controls the second two-way switch and remains closed simultaneously
It continues to monitor, vehicle normal operating and can be run.
7. insulating monitoring in a kind of operational process of fuel battery passenger car as claimed in claim 3 insulating monitoring control system
Exception control method, which is characterized in that steps are as follows:
If the second insulating monitoring insulation module monitors persistent anomaly, controller sends standby command to fuel cell module；
After fuel cell module is standby, controller control second and the 4th high-voltage switch gear are disconnected, the first two-way switch of closure, and first
Insulating monitoring module intervenes insulating monitoring work；
If the monitoring of the second insulating monitoring insulation module is still abnormal, controller limits power output to zero, disconnects third high pressure
Switch, and send fault message and remind driver's parking checking.
8. insulating monitoring exception control method in operational process as claimed in claim 7, which is characterized in that
It is eliminated if the monitoring of the second insulating monitoring insulation module is abnormal, the monitoring of the first insulating monitoring insulation module has persistent anomaly, then
Controller control second and the 4th high-voltage switch gear remain open, and send halt instruction to fuel cell module, send failure letter
Breath prompt driver only has auxiliary power battery module at present and is maintaining to drive；After fuel cell module is shut down, it is high to disconnect first
It compresses switch, vehicle is continued to run by auxiliary power battery module, prevents vehicle from casting anchor.
9. insulating monitoring exception control method in operational process as claimed in claim 7, which is characterized in that
It is eliminated if the monitoring of the second insulating monitoring insulation module is abnormal, the first insulating monitoring insulation module is monitored without persistent anomaly, then
Second insulating monitoring module controls the second two-way switch and disconnects, and controller controls the 4th high-voltage switch gear closure, controls the second preliminary filling
The high pressure that electric module completes non-isolated boost DC/DC powers on, and vehicle restores regular run mode, and fuel cell module intervention is normal
Operation, the first insulating monitoring module are responsible for vehicle insulating monitoring according to its standard.
10. a kind of vehicle, which is characterized in that including the described in any item fuel battery passenger car insulating monitorings of claim 1-4
Control system.
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| CN111929503A (en) * | 2020-08-17 | 2020-11-13 | 苏州万瑞达电气有限公司 | Insulation resistance testing device and method for fuel cell test |
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