CN203204082U - Security testing system used for hybrid power vehicles and/or pure electric vehicles - Google Patents
Security testing system used for hybrid power vehicles and/or pure electric vehicles Download PDFInfo
- Publication number
- CN203204082U CN203204082U CN 201220478676 CN201220478676U CN203204082U CN 203204082 U CN203204082 U CN 203204082U CN 201220478676 CN201220478676 CN 201220478676 CN 201220478676 U CN201220478676 U CN 201220478676U CN 203204082 U CN203204082 U CN 203204082U
- Authority
- CN
- China
- Prior art keywords
- tested
- module
- battery
- vehicle body
- safety test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides a security testing system used for hybrid power vehicles and/or pure electric vehicles. The security testing system comprises a battery to be tested, a voltage reducing module, a switching module, a reference resistor R0 and a processing module; and the positive and negative poles of the battery to be tested are coupled to the processing module through the voltage reducing module; the positive pole of the battery to be tested and a vehicle body are coupled to the processing module through the voltage reducing module; the negative pole of the battery to be tested and the vehicle body are coupled to the processing module through the voltage reducing module; one end of the reference resistor is connected to the positive pole or negative pole of the battery to be tested through the switching module, and the other end of the reference resistor is connected to the vehicle body; and the processing module obtains an electrical isolation coefficient CEl, and generates signals indicating security or alarm signals according to the CEl and a security threshold value Cthr. With the security testing system used for the hybrid power vehicles and/or pure electric vehicles of the utility model, the security of operation can be guaranteed when high-voltage electrical tests are performed.
Description
Technical field
The utility model relates to the safety test system, relates in particular to a kind of safety test system for PHEV and/or pure electric vehicle.
Background technology
Required according to project, need finish the safety collision test of PHEV and/or pure electric vehicle usually.Be example with the pure electric vehicle, at present, the power battery pack exit of pure electric vehicle is the 380V high pressure, if testing crew directly carries out Insulation test to it, belongs to high-risk operation, and the electric shock risk is bigger.Therefore need badly a kind of can be under charged situation a safety test system and device of insulation situation of being collided, making is collided carries out Insulation test before and after test, otherwise the test of the safety collision of electric automobile can't normally be carried out.Through consulting, the domestic megohmmeter that can be used for measuring impedance can't be measured under the electrification in high voltage situation.So need design and produce a kind of apparatus system that can be used for carrying out under the electrification in high voltage situation Insulation test voluntarily.
The utility model content
In view of this, the utility model provides a kind of safety test system for PHEV and/or pure electric vehicle, is used for guaranteeing the security of operation.
The utility model provides a kind of safety test system for PHEV and/or pure electric vehicle, it is characterized in that, described safety test system comprises battery to be tested, step-down module, handover module, reference resistance R0 and processing module; Wherein
The both positive and negative polarity of battery to be tested is coupled to processing module through the step-down module;
The positive pole of battery to be tested, vehicle body are coupled to processing module through the step-down module;
The negative pole of battery to be tested, vehicle body are coupled to processing module through the step-down module;
One end of reference resistance is connected to vehicle body through negative or positive electrode, the other end that described handover module is connected to described battery to be tested;
Processing module comprises:
Receiver module, be used for receiving the voltage Vb through the battery to be tested of step-down, battery cathode to be tested when reference resistance is not connected to battery to be tested and the voltage V1 between the vehicle body, anode to be tested when reference resistance is not connected to battery to be tested and the voltage V2 between the vehicle body, battery cathode to be tested when reference resistance is connected to the negative pole of battery to be tested and the voltage V1 ' between the vehicle body, anode to be tested when reference resistance is connected to battery to be tested anodal and the voltage V2 ' between the vehicle body
Computing module is used for according to formula Ri1=R0 (1+
)
Calculate Ri1, according to formula Ri2=R0 (1+
)
Calculate Ri2, according to formula C
El=Ri/Vb calculates C
El, wherein Ri1 represents the negative pole V of power supply 1 to be tested
-And the equivalent resistance between the vehicle body 5, Ri2 represent the negative pole V of power supply 1 to be tested
+And the equivalent resistance between the vehicle body 5, Ri are, C less among Ri1 and the Ri2
ElBe electric isolating coefficient;
Safe judge module, relatively C
ElWith secure threshold C
ThrIf, C
El〉=C
Thr, then generate the signal of expression safety, otherwise generate alerting signal.
Preferably, in safety test of the present utility model system, secure threshold C
Thr〉=500/V.
Preferably, in safety test of the present utility model system, reference resistance R0 is 150k.
Preferably, in safety test of the present utility model system, safe judge module obtains V1 ', V2 ' and itself and predetermined safe voltage thresholds is compared from receiver module, if one of V1 ', V2 ' are greater than predetermined safe voltage thresholds, then generate warning message, otherwise generate enable signal to computing module.
Preferably, in safety test of the present utility model system, predetermined safe voltage thresholds≤10V.
Preferably, in safety test of the present utility model system, described step-down module comprises the first step-down module, the second step-down module, the 3rd step-down module that step-down is in equal proportions, and wherein the both positive and negative polarity of battery to be tested is coupled to processing module through the first step-down module; The positive pole of battery to be tested, vehicle body are coupled to processing module through the second step-down module; And the negative pole of battery to be tested, vehicle body are coupled to processing module through the 3rd step-down module.
Preferably, in safety test of the present utility model system, described step-down ratio is 100:1.
Preferably, in safety test of the present utility model system, described handover module is change-over switch.
Preferably, in safety test of the present utility model system, described handover module comprises change-over switch, reference power source, photoelectrical coupler, wherein
Change-over switch is used for reference power source is connected to the first or the 3rd input end of photoelectrical coupler, second and four-input terminal ground connection of photoelectrical coupler, and positive pole and negative pole, third and fourth output terminal that first and second output terminals of photoelectrical coupler are connected to battery to be tested respectively are connected to reference resistance.
Preferably, in safety test of the present utility model system, described safety test system also comprises display module, is connected in inputing or outputing of receiver module, is used for receiving and showing Vb, V1, V2, V1 ', V2 '.
Utilize the utility model, when carrying out the high-tension electricity test, guarantee the security of operation.Secondly, when high-tension electricity is tested, can demonstrate the high voltage power power supply to the insulation situation of vehicle body.In addition, also can show the change in voltage situation of carrying out in the process of testing in real time.
Description of drawings
Fig. 1 is the schematic diagram according to the safety test system of embodiment of the present utility model; And
Fig. 2 is the schematic diagram according to the safety test system of another embodiment of the present utility model.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing, identical in the accompanying drawings reference number is represented components identical.
Fig. 1 is the schematic diagram according to safety test of the present utility model system.As shown in Figure 1, this safety test system 100 comprises battery 1 to be tested, step-down module 2, handover module 3, reference resistance R0 and processing module 4.Preferably, reference resistance R0 is 150k.
Step-down module 2 comprises the first step-down module 21, the second step-down module 22, the 3rd step-down module 23.The step-down ratio of the first step-down module 21, the second step-down module 22, the 3rd step-down module 23 is identical, is for example and without limitation to 100:1.
The both positive and negative polarity V of battery 1 to be tested
+, V
-Be coupled to the receiver module 40 of processing module 4 through the first step-down module 21.The both positive and negative polarity V of battery 1 to be tested
+, vehicle body 5 is coupled to the receiver module 40 of processing module 4 through the second step-down module 22.The negative pole V of battery to be tested
-, vehicle body is coupled to the receiver module 40 of processing module 4 through the 3rd step-down module 23.The end of reference resistance R0 is connected to the anodal V of battery to be tested through change-over switch 30
+Or negative pole V
-, the other end is connected to vehicle body 5.
The both positive and negative polarity V that receiver module 40 receives through the battery to be tested 1 of step-down
+, V
-Between voltage Vb, the negative pole V of the battery to be tested 1 when reference resistance R0 is not connected to battery 1 to be tested
-And the anodal V of the battery to be tested 1 when the voltage V1 between the vehicle body 5, reference resistance R0 are not connected to battery 1 to be tested
+And the voltage V2 between the vehicle body 5, reference resistance R0 are connected to the negative pole V of battery 1 to be tested
-The time battery cathode V to be tested
-And the voltage V1 ' between the vehicle body 5, reference resistance R0 are connected to the anodal V of battery 1 to be tested
+The time the anodal V of battery to be tested 1
+And the voltage V2 ' between the vehicle body 5.
Preferably, safe judge module 42 can also compare from receiver module 40 acquisition V1 ', V2 ' and with itself and predetermined safe voltage thresholds, if one of V1 ', V2 ' then generate warning message greater than predetermined safe voltage thresholds, otherwise generate enable signal to computing module 41.Preferably, predetermined safe voltage thresholds≤10V.
Safe judge module 42, relatively C
ElWith secure threshold C
ThrIf, C
El〉=C
Thr, then generate the signal of expression safety, otherwise generate alerting signal.Preferably, secure threshold C
Thr〉=500/V.
Described safety test system also comprises the display module (not shown), is connected in inputing or outputing of receiver module 40, is used for receiving and showing Vb, V1, V2, V1 ', V2 '.
Fig. 2 is the schematic diagram according to the safety test system of another embodiment of the present utility model.Compare with safety test system 100 shown in Figure 1, difference is that the handover module 3 ' of the safety test system 100 ' among Fig. 2 comprises change-over switch 30, reference power source Vref, photoelectrical coupler 31, wherein
Change-over switch 30 is used for reference power source Vref is connected to the first or the 3rd input end of photoelectrical coupler 31.Second and four-input terminal ground connection of photoelectrical coupler 31, first and second output terminals are connected to the anodal V of battery 1 to be tested respectively
+With negative pole V
-, third and fourth output terminal is connected to reference resistance R0.Alternatively, reference power source Vref is connected to change-over switch 30 through resistance R ref.
In view of these instructions, those of ordinary skill in the art will expect other embodiment of the present utility model, combination and modification easily.Therefore, when reading in conjunction with above-mentioned explanation and accompanying drawing, the utility model only is defined by the claims.
Claims (10)
1. a safety test system that is used for PHEV and/or pure electric vehicle is characterized in that, described safety test system comprises battery to be tested, step-down module, handover module, reference resistance R0 and processing module; Wherein
The both positive and negative polarity of battery to be tested is coupled to processing module through the step-down module;
The positive pole of battery to be tested, vehicle body are coupled to processing module through the step-down module;
The negative pole of battery to be tested, vehicle body are coupled to processing module through the step-down module;
One end of reference resistance is connected to vehicle body through negative or positive electrode, the other end that described handover module is connected to described battery to be tested;
Processing module comprises
Receiver module, be used for receiving the voltage Vb through the battery to be tested of step-down, battery cathode to be tested when reference resistance is not connected to battery to be tested and the voltage V1 between the vehicle body, anode to be tested when reference resistance is not connected to battery to be tested and the voltage V2 between the vehicle body, battery cathode to be tested when reference resistance is connected to the negative pole of battery to be tested and the voltage V1 ' between the vehicle body, anode to be tested when reference resistance is connected to battery to be tested anodal and the voltage V2 ' between the vehicle body
Computing module is used for according to formula Ri1=R0 (1+
)
Calculate Ri1, according to formula Ri2=R0 (1+
)
Calculate Ri2, according to formula C
El=Ri/Vb calculates C
El, wherein Ri1 represents the negative pole V of power supply 1 to be tested
-And the equivalent resistance between the vehicle body 5, Ri2 represent the negative pole V of power supply 1 to be tested
+And the equivalent resistance between the vehicle body 5, Ri are, C less among Ri1 and the Ri2
ElBe electric isolating coefficient;
Safe judge module, relatively C
ElWith secure threshold C
ThrIf, C
El〉=C
Thr, then generate the signal of expression safety, otherwise generate alerting signal.
2. safety test as claimed in claim 1 system is characterized in that secure threshold C
Thr〉=500/V.
3. safety test as claimed in claim 1 system is characterized in that reference resistance R0 is 150k.
4. safety test as claimed in claim 1 system, it is characterized in that, safe judge module obtains V1 ', V2 ' and itself and predetermined safe voltage thresholds is compared from receiver module, if one of V1 ', V2 ' are greater than predetermined safe voltage thresholds, then generate warning message, otherwise generate enable signal to computing module.
5. safety test as claimed in claim 4 system is characterized in that, predetermined safe voltage thresholds≤10V.
6. safety test as claimed in claim 1 system, it is characterized in that, described step-down module comprises the first step-down module, the second step-down module, the 3rd step-down module that step-down is in equal proportions, and wherein the both positive and negative polarity of battery to be tested is coupled to processing module through the first step-down module; The positive pole of battery to be tested, vehicle body are coupled to processing module through the second step-down module; And the negative pole of battery to be tested, vehicle body are coupled to processing module through the 3rd step-down module.
7. safety test as claimed in claim 6 system is characterized in that described step-down ratio is 100:1.
8. safety test as claimed in claim 1 system is characterized in that described handover module is change-over switch.
9. safety test as claimed in claim 1 system is characterized in that described handover module comprises change-over switch, reference power source, photoelectrical coupler, wherein
Change-over switch is used for reference power source is connected to the first or the 3rd input end of photoelectrical coupler, second and four-input terminal ground connection of photoelectrical coupler, and positive pole and negative pole, third and fourth output terminal that first and second output terminals of photoelectrical coupler are connected to battery to be tested respectively are connected to reference resistance.
10. as the described safety test of one of above-mentioned claim system, it is characterized in that described safety test system also comprises display module, is connected in inputing or outputing of receiver module, is used for receiving and showing Vb, V1, V2, V1 ', V2 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478676 CN203204082U (en) | 2012-09-19 | 2012-09-19 | Security testing system used for hybrid power vehicles and/or pure electric vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478676 CN203204082U (en) | 2012-09-19 | 2012-09-19 | Security testing system used for hybrid power vehicles and/or pure electric vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203204082U true CN203204082U (en) | 2013-09-18 |
Family
ID=49148178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478676 Expired - Fee Related CN203204082U (en) | 2012-09-19 | 2012-09-19 | Security testing system used for hybrid power vehicles and/or pure electric vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203204082U (en) |
-
2012
- 2012-09-19 CN CN 201220478676 patent/CN203204082U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203894326U (en) | Insulation resistance measuring circuit and high voltage insulation monitoring system of electric vehicle | |
| CN201886117U (en) | Insulation detection circuit of electrically-propelled vehicle | |
| CN103250061B (en) | Insulation resistance measurement circuit having self-est function without generating leakage current | |
| CN103802763B (en) | A kind of armored vehicle high direct voltage big current combination power distribution protective device | |
| CN104641244B (en) | For detecting and measuring the device of insulation fault | |
| CN204389589U (en) | The pick-up unit of the insulation resistance of electrokinetic cell | |
| CN103454498A (en) | Insulation detection method of electric vehicle power battery pack | |
| CN204559192U (en) | A kind of direct-current charging post testing apparatus | |
| KR20140041621A (en) | Device for detecting a defect in insulation | |
| CN205067625U (en) | Portable electric detection means of filling of electric vehicle and detecting system that charges | |
| CN103278776A (en) | Electric automobile battery insulation detecting system | |
| CN203786271U (en) | Device for testing state of charge (SOC) of electric automobile battery pack | |
| CN103399571A (en) | Detecting device and method applied to high-voltage circuit of electromobile motor controller | |
| CN106655145A (en) | Battery bus voltage reverse connection protection circuit | |
| CN104802655B (en) | Electric drive system for electric vehicles HVDC end open circuit diagnostic system | |
| US20140015456A1 (en) | Vehicle power supply device | |
| CN203929989U (en) | A kind of insulation testing device for electric automobile based on current monitoring | |
| CN105092971A (en) | Pure electric high-voltage insulated resistance real-time online detection method | |
| CN107490767A (en) | Insulation detecting method, system and the vehicle of battery bag | |
| CN104076254A (en) | Alternating current excitation insulation detection circuit | |
| CN202260422U (en) | Induction type high voltage display locking device | |
| CN209675960U (en) | A kind of preliminary filling protective device | |
| CN106299180B (en) | The combination of electric tool and battery pack | |
| CN103134992A (en) | Insulation resistance estimation device and estimation method | |
| CN104034978A (en) | Insulation detection device of DC charging and swapping station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20200919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |