CN107817431A - The high-voltage isulation detecting system and fuel-cell vehicle of fuel-cell vehicle - Google Patents
The high-voltage isulation detecting system and fuel-cell vehicle of fuel-cell vehicle Download PDFInfo
- Publication number
- CN107817431A CN107817431A CN201610822842.4A CN201610822842A CN107817431A CN 107817431 A CN107817431 A CN 107817431A CN 201610822842 A CN201610822842 A CN 201610822842A CN 107817431 A CN107817431 A CN 107817431A
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- Prior art keywords
- fuel
- cell vehicle
- detecting system
- insulation detection
- detection device
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses the high-voltage isulation detecting system and fuel-cell vehicle of a kind of fuel-cell vehicle, the high-voltage isulation detecting system of the fuel-cell vehicle includes：DC-DC converter, the input of the DC-DC converter are suitable to electrically connect with fuel cell, and output end is suitable to electrically connect with vehicle end；Isolating device, the isolating device are located between input and the output end of the DC-DC converter；First insulation detection device, first insulation detection device electrically connect with the input of the DC-DC converter；Second insulation detection device, second insulation detection device electrically connect with the output end of the DC-DC converter.The high-voltage isulation detecting system of the fuel-cell vehicle of the present invention can prevent the insulation values of fuel cell and Full Vehicle System from influencing each other, the result so detected is more accurate, it can ensure that fuel cell is in safe condition with Full Vehicle System, reliable guarantee is provided for the normal operation of the electric element of fuel-cell vehicle.
Description
Technical field
The invention belongs to technical field of vehicle safety, the high-voltage isulation in particular to a kind of fuel-cell vehicle detects
System and the fuel-cell vehicle with the high-voltage isulation detecting system.
Background technology
Fuel-cell vehicle has good environmental-protecting performance, and fuel-cell vehicle is chemically reacted by the pile of fuel cell
To export electric energy, in order to ensure the security of vehicle, it is necessary to detect the state of insulation of the various pieces of fuel-cell vehicle, due to combustion
Expect the factor of battery self property, its insulation values far below other high-pressure sections of vehicle insulation values, whole in correlation technique
The insulation values of the insulation detection device detection set on car are largely influenceed by fuel cell, cause testing result
It is inaccurate, room for improvement be present.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of high-voltage isulation detecting system for detecting accurate fuel-cell vehicle.
It is another object of the present invention to propose a kind of high-voltage isulation detecting system with above-mentioned fuel-cell vehicle
Fuel-cell vehicle.
The high-voltage isulation detecting system of the fuel-cell vehicle of embodiment includes according to a first aspect of the present invention：DCDC is changed
Device, the input of the DC-DC converter are suitable to electrically connect with fuel cell, and output end is suitable to electrically connect with vehicle end；Isolation dress
Put, the isolating device is located between input and the output end of the DC-DC converter；First insulation detection device, described
One insulation detection device electrically connects with the input of the DC-DC converter；Second insulation detection device, the second insulation inspection
Device is surveyed to electrically connect with the output end of the DC-DC converter.
The high-voltage isulation detecting system of the fuel-cell vehicle of embodiment can prevent that fuel is electric according to a first aspect of the present invention
The insulation values of pond and Full Vehicle System influence each other, and the result so detected is more accurate, it is ensured that fuel cell and Full Vehicle System
Safe condition is in, reliable guarantee is provided for the normal operation of the electric element of fuel-cell vehicle.
In addition, the high-voltage isulation detecting system of fuel-cell vehicle according to the above embodiment of the present invention can also have it is as follows
Additional technical characteristic：
In some preferred embodiments of the present invention, the isolating device is integrated in the DC-DC converter.
In some preferred embodiments of the present invention, the DC-DC converter includes DC-AC module and AC-DC module,
The DC-AC module is connected together to the isolating device with the AC-DC module by magnetic field.
In some preferred embodiments of the present invention, the high-voltage isulation detecting system of described fuel-cell vehicle is also wrapped
Include：Control unit, described control unit is connected with first insulation detection device and second insulation detection device, and sets
The detected value being set in first insulation detection device is less than the inspection of the first second insulation detection devices of safety value R1 or described
Measured value controls vehicle cutoff high loop when being less than the second safety value R2.
Preferably, the high-voltage isulation detecting system of described fuel-cell vehicle also includes：Alarm device, the alarm device
It is connected with described control unit, and is arranged to be less than the first safety value R1 or institute in the detected value of first insulation detection device
State signal an alert when the detected value of the second insulation detection device is less than the second safety value R2.
Specifically, the alarm device is sound alarm device and/or light alarm device.
Specifically, the alarm device is the light alarm device being integrated in the instrument of vehicle.
Specifically, the alarm device is sent out when the detected value of first insulation detection device is less than the first safety value R1
The alarm signal gone out and the alarm signal sent when the detected value of second insulation detection device is less than the second safety value R2
It is different.
Specifically, meet：R1=40 Ω/V, R2=500 Ω/V.
The fuel-cell vehicle of embodiment according to a second aspect of the present invention, described fuel any just like first aspect is set
The high-voltage isulation detecting system of battery car.
The fuel-cell vehicle is same relative to Dominant Facies possessed by prior art with above-mentioned high-voltage isulation detecting system,
It will not be repeated here.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structural representation of high-voltage isulation detecting system according to embodiments of the present invention.
Reference：
High-voltage isulation detecting system 100,
DC-DC converter 10, input 11, output end 12,
Isolating device 20,
First insulation detection device 31, the second insulation detection device 32.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The high-voltage isulation detecting system of fuel-cell vehicle according to embodiments of the present invention is described in detail with reference first to accompanying drawing
100。
As shown in figure 1, the high-voltage isulation detecting system 100 of fuel-cell vehicle include DC-DC converter 10, isolating device 20,
First insulation detection device 31 and the second insulation detection device 32.
Wherein, the input 11 of DC-DC converter 10 is suitable to electrically connect, DC-DC converter with fuel cell (left end in figure)
10 output end 12 is suitable to electrically connect with vehicle end (right-hand member in figure), and the output voltage of fuel cell can be with through DC-DC converter 10
Be converted to the voltage platform needed for vehicle.
Isolating device 20 is located between the input 11 of DC-DC converter 10 and the output end 12 of DC-DC converter 10, isolation
Device 20 being dielectrically separated from out both ends, alternatively, isolating device 20 can be integrated in DC-DC converter 10, such as
DC-DC converter 10 can include DC-AC module and AC-DC module, and DC-AC module can be connected with AC-DC module by magnetic field
To form isolating device 20, it is to be understood that electric energy transmission is realized by coil between DC-AC module and AC-DC module, with
Make to be isolated between DC-AC module and AC-DC module.The structure of so high-voltage isulation detecting system 100 is relatively simple.
First insulation detection device 31 electrically connects with the input 11 of DC-DC converter 10, as shown in figure 1, the first insulation inspection
The two poles of the earth respectively with the input 11 of DC-DC converter 10, the two poles of the earth for surveying device 31 electrically connect, and the first insulation detection device 31 can be with
The insulation values of fuel cell are detected, the second insulation detection device 32 electrically connects with the output end 12 of DC-DC converter 10, such as Fig. 1 institutes
Show, the two poles of the earth of the two poles of the earth of the second insulation detection device 32 respectively with the output end 12 of DC-DC converter 10 electrically connect, the second insulation
Detection means 32 can detect the insulation values of Full Vehicle System.
Isolate dress due to being provided between the input 11 of DC-DC converter 10 and the output end 12 of DC-DC converter 10
20 are put, can prevent the insulation values of fuel cell and Full Vehicle System from influencing each other, the result so detected is more accurate, it is ensured that
Fuel cell is in safe condition with Full Vehicle System, is provided reliably for the normal operation of the electric element of fuel-cell vehicle
Ensure, and can preferably protect vehicle and the personal safety of occupant, ensure the safety of electrical system.
In some preferred embodiments of the present invention, the high-voltage isulation detecting system 100 of the embodiment of the present invention can be with
Including control unit and alarm device (not shown).
Wherein, control unit can be connected with the first insulation detection device 31, and alarm device is connected with control unit, and first
The insulation values of the fuel cell detected can be sent to control unit by insulation detection device 31, and control unit is arranged to
Alarm device is controlled to send alarm when the detected value of one insulation detection device 31 is less than the first safety value R1, so as in fuel cell
Made a response rapidly when generation is abnormal, remind driver's potential safety hazard, and control vehicle intelligence cutoff high loop, ensure peace
Quan Xing.First safety value R1 can meet：R1=40 Ω/V, that is to say, that detect fuel in the first insulation detection device 31
When the insulation values of battery are less than 40 Ω/V, control unit can intelligently cut off vehicle cutoff high loop, and control alarm device
Signal an alert.
Control unit can be connected with the second insulation detection device 32, and alarm device is connected with control unit, the second insulation
The insulation values of the Full Vehicle System detected can be sent to control unit by detection means 32, and control unit is arranged to exhausted second
Alarm device is controlled to send alarm when the detected value of edge detection means 32 is less than the second safety value R2, so as to occur in Full Vehicle System
Made a response rapidly when abnormal, remind driver's potential safety hazard, and can preferably protect vehicle and the personal safety of occupant,
Ensure the safety of electrical system.Second safety value R2 can meet：R2=500 Ω/V, that is to say, that filled in the second Insulation monitoring
When putting 32 and detecting that the insulation values of Full Vehicle System are less than 500 Ω/V, control unit can intelligently cut off vehicle cutoff high loop,
And control alarm device signal an alert.
Alternatively, control unit can be the ECU of vehicle, and alarm device can be sound alarm device or light alarm device,
For example alarm device can be buzzer, or alarm device can be the light alarm device being integrated on combination instrument, and alert
Reporting device can be arranged to the alarm signal sent when the detected value of the first insulation detection device 31 is less than the first safety value R1
It is different from the alarm signal sent when the detected value of the second insulation detection device 32 is less than the second safety value R2, it is in other words, alert
The alarm signal that reporting device is sent for the first insulation detection device 31 and the second insulation detection device 32 can be different.
The invention also discloses a kind of fuel-cell vehicle, the fuel-cell vehicle of the embodiment of the present invention is provided with above-described embodiment
Any high-voltage isulation detecting system 100 of description, the fuel-cell vehicle of the embodiment of the present invention can be car, fuel-cell vehicle
Fuel source can be hydrogen.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " be meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
- A kind of 1. high-voltage isulation detecting system of fuel-cell vehicle, it is characterised in that including：DC-DC converter, the input of the DC-DC converter are suitable to electrically connect with fuel cell, and output end is suitable to and vehicle end Electrical connection；Isolating device, the isolating device are located between input and the output end of the DC-DC converter；First insulation detection device, first insulation detection device electrically connect with the input of the DC-DC converter；Second insulation detection device, second insulation detection device electrically connect with the output end of the DC-DC converter.
- 2. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 1, it is characterised in that the isolating device It is integrated in the DC-DC converter.
- 3. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 2, it is characterised in that the DCDC conversions Device includes DC-AC module and AC-DC module, and the DC-AC module is connected together to described with the AC-DC module by magnetic field Isolating device.
- 4. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 1, it is characterised in that also include：Control unit, described control unit are connected with first insulation detection device and second insulation detection device, and It is arranged to the detected value in first insulation detection device less than the first second insulation detection devices of safety value R1 or described Detected value controls vehicle cutoff high loop when being less than the second safety value R2.
- 5. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 4, it is characterised in that also include：Alarm device, the alarm device are connected with described control unit, and are arranged in first insulation detection device Detected value sends police when being less than the second safety value R2 less than the detected value of the first second insulation detection devices of safety value R1 or described The number of notifying.
- 6. the high-voltage isulation detecting system for the fuel-cell vehicle stated according to claim 5, it is characterised in that the alarm device is Sound alarm device and/or light alarm device.
- 7. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 6, it is characterised in that the alarm device To be integrated in the light alarm device in the instrument of vehicle.
- 8. the high-voltage isulation detecting system for the fuel-cell vehicle stated according to claim 5, it is characterised in that the alarm device exists The detected value of first insulation detection device is less than the alarm signal sent during the first safety value R1 with being insulated described second It is different that the detected value of detection means is less than the alarm signal sent during the second safety value R2.
- 9. the high-voltage isulation detecting system of fuel-cell vehicle according to claim 5, it is characterised in that meet：R1=40 Ω/V, R2=500 Ω/V.
- 10. a kind of fuel-cell vehicle, it is characterised in that be provided with fuel-cell vehicle as claimed in any one of claims 1-9 wherein High-voltage isulation detecting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822842.4A CN107817431A (en) | 2016-09-13 | 2016-09-13 | The high-voltage isulation detecting system and fuel-cell vehicle of fuel-cell vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822842.4A CN107817431A (en) | 2016-09-13 | 2016-09-13 | The high-voltage isulation detecting system and fuel-cell vehicle of fuel-cell vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN107817431A true CN107817431A (en) | 2018-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610822842.4A Pending CN107817431A (en) | 2016-09-13 | 2016-09-13 | The high-voltage isulation detecting system and fuel-cell vehicle of fuel-cell vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318828A (en) * | 2018-04-28 | 2018-07-24 | 苏州弗尔赛能源科技股份有限公司 | A kind of battery insulation monitoring system of vehicle |
| CN112721741A (en) * | 2020-04-02 | 2021-04-30 | 长城汽车股份有限公司 | Insulation detection method and device for fuel cell vehicle and vehicle |
| CN112874304A (en) * | 2020-04-02 | 2021-06-01 | 长城汽车股份有限公司 | Insulation fault response method and device for fuel cell vehicle |
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Cited By (4)
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| CN112721741A (en) * | 2020-04-02 | 2021-04-30 | 长城汽车股份有限公司 | Insulation detection method and device for fuel cell vehicle and vehicle |
| CN112874304A (en) * | 2020-04-02 | 2021-06-01 | 长城汽车股份有限公司 | Insulation fault response method and device for fuel cell vehicle |
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Application publication date: 20180320 |