CN109358211A - A kind of automobile charge fault detection system and detection method - Google Patents
A kind of automobile charge fault detection system and detection method Download PDFInfo
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- CN109358211A CN109358211A CN201811479798.7A CN201811479798A CN109358211A CN 109358211 A CN109358211 A CN 109358211A CN 201811479798 A CN201811479798 A CN 201811479798A CN 109358211 A CN109358211 A CN 109358211A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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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
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The invention discloses a kind of automobile charge fault detection systems, it include: automobile charge fault detection device and at least one multimeter, automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, the second interface end being connect with charging gun, detection route between first interface end and second interface end, detecting route includes zero curve, firewire, protective ground wire, control confirmation line and charging connection confirm line, first switch is provided on zero curve, second switch is provided on firewire, third switch is provided in protective ground wire, the 4th switch is provided on control confirmation line, the 5th switch is provided on charging connection confirmation line, first switch, second switch, third switch, a detection terminal is respectively arranged in the left and right ends of 4th switch and the 5th switch；Multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, and end of being out of order is judged compared with normal signal by detecting signal.
Description
Technical field
The present invention relates to wireline inspection field more particularly to a kind of automobile charge fault detection systems and detection method.
Background technique
With the continuous development of technology, new-energy automobile share shared in automobile market is increasing, and existing
New-energy automobile will appear the problem of can not charging, and for this problem, it is that Vehicular charging end is broken down that people, which can not be known,
Or charging gun breaks down, and traditional test method be charging gun is tested on different vehicles using same, or
Same trolley is tested on different charging guns；This method is not only troublesome in poeration, low efficiency, and accuracy is very low, effect
It is bad.
Summary of the invention
The present invention provides a kind of automobile charge fault detection system and detection methods, can not be fast and effeciently right with solution
The technical issues of automobile charge fault is detected, to efficiently, more accurately be detected to vehicle failure.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of automobile charge fault detection systems, comprising:
Automobile charge fault detection device and at least one multimeter,
The automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, connect with charging gun
Second interface end, the detection route between first interface end and second interface end, the detection route include zero curve, firewire,
Protective ground wire, control confirmation line and charging connection confirm line, are provided with first switch on the zero curve, the first switch
A detection terminal is respectively arranged in left and right ends, and second switch is provided on the firewire, and the left and right ends of the second switch are each
One detection terminal is set, third switch is provided in the protective ground wire, the left and right ends of the third switch are respectively arranged
One detection terminal, the control, which confirms, is provided with the 4th switch on line, the left and right ends of the 4th switch are respectively arranged one
Detection terminal, the charging connection, which confirms, is provided with the 5th switch on line, the left and right ends of the 5th switch are respectively arranged one
Detection terminal；
The multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, by detecting signal
End of being out of order is judged compared with normal signal.
Preferably, the 6th switch is provided between the right end of the third switch and the right end of the 4th switch
Connection, the 6th switch connect access circuit with first resistor；The right side of the right end of the third switch and the 4th switch
The 7th switch connection, the 7th switch and the 6th switch in parallel, the 7th switch and the second electricity are provided between end
Resistance connection access circuit.
Preferably, the 8th switch is provided between the left end of the first switch and the left end of third switch
Connection, the 8th switch connect access circuit with 3rd resistor.
Preferably, the 9th switch is provided between the left end of the second switch and the left end of third switch
Connection, the 9th switch connect access circuit with the 4th resistance.
Preferably, the tenth switch is provided between the left end of the third switch and the left end of the 5th switch
Connection, the tenth switch are sequentially connected in series access circuit with the 5th resistance, the 6th resistance.
Preferably, the 11st switch is provided between the left end and the 5th resistance of the third switch to connect
It connects, the 11st switch is connected by the 5th resistance with the tenth switch, the 6th resistance and the described 11st
Switch in parallel.
A kind of automobile charge fault detection system, comprising: automobile charge fault detection device and at least one multimeter,
The automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, connect with charging gun
Second interface end, the detection route between first interface end and second interface end, the detection route include zero curve, firewire,
Protective ground wire, control confirmation line and charging connection confirm line, are provided with first switch on the zero curve, the first switch
A detection terminal is respectively arranged in left and right ends, and second switch is provided on the firewire, and the left and right ends of the second switch are each
One detection terminal is set, third switch is provided in the protective ground wire, the left and right ends of the third switch are respectively arranged
One detection terminal, the control, which confirms, is provided with the 4th switch on line, the left and right ends of the 4th switch are respectively arranged one
Detection terminal, the charging connection, which confirms, is provided with the 5th switch on line, the left and right ends of the 5th switch are respectively arranged one
Detection terminal；
The multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, by detecting signal
End of being out of order is judged compared with normal signal；
It is provided with the 6th switch between the right end of the third switch and the right end of the 4th switch to connect, the described 6th
Switch connect access circuit with first resistor；The is provided between the right end of third switch and the right end of the 4th switch
Seven switch connections, the 7th switch and the 6th switch in parallel, the 7th switch connect access circuit with second resistance；
It is provided with the 8th switch between the left end of the first switch and the left end of third switch to connect, the described 8th
Switch connect access circuit with 3rd resistor；
It is provided with the 9th switch between the left end of the second switch and the left end of third switch to connect, the described 9th
Switch connect access circuit with the 4th resistance；
It is provided with the tenth switch between the left end of the third switch and the left end of the 5th switch to connect, the described tenth
Switch is sequentially connected in series access circuit with the 5th resistance, the 6th resistance；
It is provided with the 11st switch between the left end and the 5th resistance of the third switch to connect, the described 11st
Switch is connected by the 5th resistance with the tenth switch, the 6th resistance and the 11st switch in parallel.
A kind of automobile charge fault detection method, comprising:
The first interface end of automobile charge fault detection device is connect with vehicle-mounted charge mouth, automobile charge fault is detected
The second interface end of device is connect with charging gun；
First switch is connected, is detected using detection terminal of the multimeter to first switch left and right ends, detection is obtained
Signal judges system zero-line failure end compared with normal signal；
Second switch is connected, is detected using detection terminal of the multimeter to second switch left and right ends, detection is obtained
Signal judges firewire failure end compared with normal signal；
Third switch is connected, is detected using detection terminal of the multimeter to third switch left and right ends, obtains detection
Signal judges protective ground wire failure end compared with normal signal；
The 4th switch is connected, is detected using detection terminal of the multimeter to the 4th switch left and right ends, obtains detection
Signal judges control confirmation line failure end compared with normal signal；
The 5th switch is connected, is detected using detection terminal of the multimeter to the 5th switch left and right ends, obtains detection
Signal judges that charging connection confirms line failure end compared with normal signal.
Preferably, the detection method, further includes:
It is also turned on the 6th switch and the 7th switch, short circuit between control confirmation line and protective ground wire is caused, uses ten thousand
Third is switched with table and the detection terminal of the 4th switch left and right ends detects, obtains detection signal and normal signal phase
Than judging the failure end of control confirmation line and protective ground wire group；
The tenth switch is connected, short circuit between charging connection confirmation line and protective ground wire is caused, using multimeter to third
Switch and the detection terminal of the 5th switch left and right ends are detected, and are obtained detection signal compared with normal signal, are judged to fill
The failure end of electrical connection confirmation line and protective ground wire group；
After connecting the tenth switch, the 11st switch is connected, the 6th resistive short is caused, third is switched using multimeter
It is detected with the detection terminal of the 5th switch left and right ends, since the resistance of access circuit changes, passes through detection voltage and electricity
Flow valuve further determines that the failure end of charging connection confirmation line and protective ground wire group compared with normal signal.
Preferably, the detection method, further includes:
The 8th switch is connected, short circuit between zero curve and protective ground wire is caused, according to the vehicle-mounted insulating monitoring of vehicle itself
Whether system there is insulation fault warning note, judges whether the vehicle-mounted type insulation monitoring system of vehicle itself works normally；
The 9th switch is connected, short circuit between firewire and protective ground wire is caused, according to the vehicle-mounted insulating monitoring of vehicle itself
Whether system there is insulation fault warning note, further confirms that the whether normal work of the vehicle-mounted type insulation monitoring system of vehicle itself
Make.
Compared with the prior art, the embodiment of the present invention has the following beneficial effects:
1, two interface ends of detection box are coupled on vehicle-mounted charge mouth and charging gun, then in turn switch on first to
5th switch, while signal is detected on detection terminal to judge that Vehicular charging end is broken down or charging gun goes out
Existing failure.
2, by connecting or disconnecting this four switches of the 6th/the 7th/the tenth/the 11st switch, normal work is simulated
Input signal detects output signal in detection terminal using multimeter, determines specific faulty line by analyzing output signal.
3, it is switched by connecting the 8th switch and the 9th, insulation fault warning note is occurred according to the instrument of vehicle itself,
Whether the vehicle-mounted type insulation monitoring system that can detecte vehicle works normally.
Detailed description of the invention
Fig. 1: for the detection conspectus of apparatus of the present invention embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, the preferred embodiment of the present invention provides a kind of automobile charge fault detection system, comprising: automobile fills
Electric fault detection device and at least one multimeter,
The automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, connect with charging gun
Second interface end, the detection route between first interface end and second interface end, the detection route include zero curve, firewire,
Protective ground wire, control confirmation line and charging connection confirm line, are provided with first switch on the zero curve, the first switch
A detection terminal is respectively arranged in left and right ends, and second switch is provided on the firewire, and the left and right ends of the second switch are each
One detection terminal is set, third switch is provided in the protective ground wire, the left and right ends of the third switch are respectively arranged
One detection terminal, the control, which confirms, is provided with the 4th switch on line, the left and right ends of the 4th switch are respectively arranged one
Detection terminal, the charging connection, which confirms, is provided with the 5th switch on line, the left and right ends of the 5th switch are respectively arranged one
Detection terminal；The multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, is believed by detection
Judgement is out of order end number compared with normal signal.
Firstly, the first interface end of automobile charge fault detection device is connect with vehicle-mounted charge mouth, by automobile charging event
The second interface end of barrier detection device is connect with charging gun；First switch is connected, using multimeter to first switch left and right ends
Detection terminal detected, obtain detection signal compared with normal signal, judge system zero-line failure end；Second switch is connected,
It is detected using detection terminal of the multimeter to second switch left and right ends, obtains detection signal compared with normal signal, sentence
It is disconnected to have firewire failure end；Third switch is connected, is detected, is obtained using detection terminal of the multimeter to third switch left and right ends
It takes detection signal compared with normal signal, judges protective ground wire failure end；The 4th switch is connected, using multimeter to the 4th
The detection terminal for switching left and right ends is detected, and obtains detection signal compared with normal signal, judges control confirmation line event
Hinder end；The 5th switch is connected, is detected using detection terminal of the multimeter to the 5th switch left and right ends, obtains detection signal
Compared with normal signal, judge that charging connection confirms line failure end.
In the present embodiment, the 6th switch is provided between the right end of the third switch and the right end of the 4th switch
Connection, the 6th switch connect access circuit with first resistor；The right side of the right end of the third switch and the 4th switch
The 7th switch connection, the 7th switch and the 6th switch in parallel, the 7th switch and the second electricity are provided between end
Resistance connection access circuit.
It is also turned on the 6th switch and the 7th switch, short circuit between control confirmation line and protective ground wire is caused, uses ten thousand
Third is switched with table and the detection terminal of the 4th switch left and right ends detects, obtains detection signal and normal signal phase
Than judging the failure end of control confirmation line and protective ground wire group.
In the present embodiment, the 8th switch is provided between the left end of the first switch and the left end of third switch
Connection, the 8th switch connect access circuit with 3rd resistor.
The 8th switch is connected, short circuit between zero curve and protective ground wire is caused, according to the vehicle-mounted insulating monitoring of vehicle itself
Whether system there is insulation fault warning note, judges whether the vehicle-mounted type insulation monitoring system of vehicle itself works normally.
In the present embodiment, the 9th switch is provided between the left end of the second switch and the left end of third switch
Connection, the 9th switch connect access circuit with the 4th resistance.
The 9th switch is connected, short circuit between firewire and protective ground wire is caused, according to the vehicle-mounted insulating monitoring of vehicle itself
Whether system there is insulation fault warning note, further confirms that the whether normal work of the vehicle-mounted type insulation monitoring system of vehicle itself
Make.
In the present embodiment, the tenth switch is provided between the left end of the third switch and the left end of the 5th switch
Connection, the tenth switch are sequentially connected in series access circuit with the 5th resistance, the 6th resistance.
The tenth switch is connected, short circuit between charging connection confirmation line and protective ground wire is caused, using multimeter to third
Switch and the detection terminal of the 5th switch left and right ends are detected, and are obtained detection signal compared with normal signal, are judged to fill
The failure end of electrical connection confirmation line and protective ground wire group.
In the present embodiment, the 11st switch is provided between the left end and the 5th resistance of the third switch to connect
It connects, the 11st switch is connected by the 5th resistance with the tenth switch, the 6th resistance and the described 11st
Switch in parallel.
After connecting the tenth switch, the 11st switch is connected, the 6th resistive short is caused, third is switched using multimeter
It is detected with the detection terminal of the 5th switch left and right ends, since the resistance of access circuit changes, passes through detection voltage and electricity
Flow valuve further determines that the failure end of charging connection confirmation line and protective ground wire group compared with normal signal.
Combined with specific embodiments below, testing principle of the invention is described in detail.
Judge new-energy automobile can not charge fault when, two interfaces of detection box are coupled with and vehicle-mounted charge mouth and are filled
On electric rifle, switch S1-S5 is then in turn switched on, while signal is detected on detection terminal to judge that failure is by which
Caused by side: 1, detect has L firewire, N zero curve, PE protective ground wire, CC charging connection confirmation line, CP control confirmation respectively on box
Line, 5 are guided to the line of terminal box.This 5 lines are detection box input lines, whether there is event when measuring one in this five routes
When barrier, respectively can in the terminal mouth in detection box using multimeter measurement L, whether export with N voltage, in this way it may determine that
L, whether normal with the two lines in N.Same reason, to survey PE line whether can normally survey voltage-to-ground and PE to CC or
To CP and CP, whether short circuit, open circuit and detection box end are whether route and voltage are normal to charger end to person CC over the ground.If wanted
Judge whether vehicle end is normal, it can also be in the CC and CP and PE of the output port test point measurement vehicle-mounted charge generator terminal of detection box
Whether signal is normal.It is whether normal at the same time it can also the voltage that measures L and N；2, pass through S1 to the S5's on circuit diagram
Switch, purpose are exactly after imparting knowledge to students or simulating the open circuit of L, N, PE, CC, CP line when judging failure, what vehicle end will occur
The phenomenon of the failure of sample；It also may determine that the fault point after one group of line disconnects among these simultaneously.It should be noted that S1 to S5 is switched
It is all that can be each turned off regardless of sequence, only the phenomenon of the failure that disconnects is different.
Need specifically judge which group route of on-board charging system or charging gun causes failure, when formation maintenance program,
The input signal of normal work can be simulated, uses ten thousand by connecting or disconnecting this four switches of switch S6/S7/S10/S11
Output signal is detected in detection terminal with table, by analyzing which line fault is output signal determine.Switch S6 and S7 switch close
It is indirectly short-circuit that conjunction will be considered to CP and PE line, detects to detection terminal, if voltage value is more than normal value, in this way it may determine that
This group of line failure；It is indirectly short-circuit that switch S10 closure will be considered to CC and PE line, detects to detection terminal, if voltage value is more than
Normal value, in this way it may determine that this group of line failure.
For charge fault, there are one the vehicle-mounted type insulation monitoring systems that reason is exactly vehicle itself to break down, can not
Electric voltage exception is monitored；And when needing to detect vehicle-mounted type insulation monitoring system and whether working normally, pass through and connects switch S8/
S9, if there is insulation fault warning note in instrument, prove it is working properly, conversely, work it is abnormal.Principle is just comparable to
Simulate a branch pressure voltage to Vehicular charger to onboard charger end, to judge indirectly with this failure thus put where: 1, root
Connecting S8 switch according to schematic diagram means that chassis ground PE and N zero curve is indirectly short-circuit, and N is connect with PE means that zero curve and ground are formed
Circuit will represent at this time it is internal connect with ground forming circuit will will lead to vehicle in electric leakage forming circuit and have danger of hazardous electrical discharges,
It is exactly insulation fault；2, L line will lead to according to schematic diagram connection S9 switch and PE line connects ground wire at this time and alternating current firewire indirectly
It is most dangerous that connection, which will lead to shell and forming circuit be leaked electricity at this time with the connection of single line firewire,.Direct insulation fault will lead to
Electric shock, addition resistance can protect circuit safety.
It should be understood that the effect of six resistance in detection circuit is protection detection circuit, open circuit or short is prevented
Cause the danger of high-voltage destruction circuit in road.
The present invention judges to charge by being switched on or switched off the switch of detection line road to detection terminal progress signal detection
Failure the problem of where, solve the technology that can not fast and effeciently be detected to automobile charge fault of traditional detection method and ask
Topic, to efficiently, more accurately be detected to vehicle failure.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, the protection being not intended to limit the present invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of automobile charge fault detection system characterized by comprising automobile charge fault detection device and at least one
Multimeter,
The automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, connect with charging gun
Detection route between two interface ends, first interface end and second interface end, the detection route includes zero curve, firewire, protection
Ground line, control confirmation line and charging connection confirm line, are provided with first switch, the left and right of the first switch on the zero curve
A detection terminal is respectively arranged in both ends, and second switch is provided on the firewire, and the left and right ends of the second switch are respectively arranged
One detection terminal, third switch is provided in the protective ground wire, and the left and right ends of the third switch are respectively arranged one
Detection terminal, the control, which confirms, is provided with the 4th switch on line, a detection is respectively arranged in the left and right ends of the 4th switch
Terminal, the charging connection, which confirms, is provided with the 5th switch on line, a detection is respectively arranged in the left and right ends of the 5th switch
Terminal；
The multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, by detection signal and just
Regular signal, which is compared, judges end of being out of order.
2. the system as claimed in claim 1, which is characterized in that the right end of the right end of the third switch and the 4th switch
Between be provided with the 6th switch connection, it is described 6th switch connect with first resistor access circuit；The right end of the third switch
The 7th switch connection, the 7th switch and the 6th switch in parallel, institute are provided between the right end of the 4th switch
It states the 7th switch and connect access circuit with second resistance.
3. the system as claimed in claim 1, which is characterized in that the left end of the left end of the first switch and third switch
Between be provided with the 8th switch connection, it is described 8th switch connect with 3rd resistor access circuit.
4. the system as claimed in claim 1, which is characterized in that the left end of the left end of the second switch and third switch
Between be provided with the 9th switch connection, it is described 9th switch connect with the 4th resistance access circuit.
5. the system as claimed in claim 1, which is characterized in that the left end of the left end of the third switch and the 5th switch
Between be provided with the tenth switch connection, it is described tenth switch with the 5th resistance, the 6th resistance be sequentially connected in series access circuit.
6. system as claimed in claim 5, which is characterized in that between the left end and the 5th resistance of the third switch
It is provided with the 11st switch connection, the 11st switch, which is switched by the 5th resistance with the described tenth, connects, and described the
Six resistance and the 11st switch in parallel.
7. a kind of automobile charge fault detection system characterized by comprising automobile charge fault detection device and at least one
Multimeter,
The automobile charge fault detection device includes the first interface end connecting with vehicle-mounted charge mouth, connect with charging gun
Detection route between two interface ends, first interface end and second interface end, the detection route includes zero curve, firewire, protection
Ground line, control confirmation line and charging connection confirm line, are provided with first switch, the left and right of the first switch on the zero curve
A detection terminal is respectively arranged in both ends, and second switch is provided on the firewire, and the left and right ends of the second switch are respectively arranged
One detection terminal, third switch is provided in the protective ground wire, and the left and right ends of the third switch are respectively arranged one
Detection terminal, the control, which confirms, is provided with the 4th switch on line, a detection is respectively arranged in the left and right ends of the 4th switch
Terminal, the charging connection, which confirms, is provided with the 5th switch on line, a detection is respectively arranged in the left and right ends of the 5th switch
Terminal；
The multimeter is used to detect the signal of each detection terminal after in turn switching on each switch, by detection signal and just
Regular signal, which is compared, judges end of being out of order；
The 6th switch connection, the 6th switch are provided between the right end of the third switch and the right end of the 4th switch
Access circuit is connect with first resistor；The 7th is provided between the right end of the third switch and the right end of the 4th switch to open
Connection connects, the 7th switch and the 6th switch in parallel, and the 7th switch connect access circuit with second resistance；
The 8th switch connection, the 8th switch are provided between the left end of the first switch and the left end of third switch
Access circuit is connect with 3rd resistor；
The 9th switch connection, the 9th switch are provided between the left end of the second switch and the left end of third switch
Access circuit is connect with the 4th resistance；
The tenth switch connection, the tenth switch are provided between the left end of the third switch and the left end of the 5th switch
Access circuit is sequentially connected in series with the 5th resistance, the 6th resistance；
The 11st switch connection, the 11st switch are provided between the left end and the 5th resistance of the third switch
It is connected by the 5th resistance with the tenth switch, the 6th resistance and the 11st switch in parallel.
8. a kind of detection method based on system described in claim 7 characterized by comprising
The first interface end of automobile charge fault detection device is connect with vehicle-mounted charge mouth, by automobile charge fault detection device
Second interface end connect with charging gun；
First switch is connected, is detected using detection terminal of the multimeter to first switch left and right ends, detection signal is obtained
Compared with normal signal, system zero-line failure end is judged；
Second switch is connected, is detected using detection terminal of the multimeter to second switch left and right ends, detection signal is obtained
Compared with normal signal, firewire failure end is judged；
Third switch is connected, is detected using detection terminal of the multimeter to third switch left and right ends, obtains detection signal
Compared with normal signal, protective ground wire failure end is judged；
The 4th switch is connected, is detected using detection terminal of the multimeter to the 4th switch left and right ends, obtains detection signal
Compared with normal signal, control confirmation line failure end is judged；
The 5th switch is connected, is detected using detection terminal of the multimeter to the 5th switch left and right ends, obtains detection signal
Compared with normal signal, judge that charging connection confirms line failure end.
9. detection method as claimed in claim 8, which is characterized in that further include:
It is also turned on the 6th switch and the 7th switch, short circuit between control confirmation line and protective ground wire is caused, uses multimeter
The detection terminal of third switch and the 4th switch left and right ends is detected, detection signal is obtained compared with normal signal, sentences
The disconnected failure end for haveing control confirmation line and protective ground wire group；
The tenth switch is connected, short circuit between charging connection confirmation line and protective ground wire is caused, third is switched using multimeter
It is detected with the detection terminal of the 5th switch left and right ends, obtains detection signal compared with normal signal, judge that charging connects
Connect the failure end of confirmation line and protective ground wire group；
After connecting the tenth switch, the 11st switch is connected, the 6th resistive short is caused, third switched using multimeter and the
The detection terminal of five switch left and right ends is detected, since the resistance of access circuit changes, by detecting voltage and current value,
Compared with normal signal, the failure end of charging connection confirmation line and protective ground wire group is further determined that.
10. detection method as claimed in claim 8, which is characterized in that further include:
The 8th switch is connected, short circuit between zero curve and protective ground wire is caused, according to the vehicle-mounted type insulation monitoring system of vehicle itself
Whether there is insulation fault warning note, judges whether the vehicle-mounted type insulation monitoring system of vehicle itself works normally；
The 9th switch is connected, short circuit between firewire and protective ground wire is caused, according to the vehicle-mounted type insulation monitoring system of vehicle itself
Whether there is insulation fault warning note, further confirms that whether the vehicle-mounted type insulation monitoring system of vehicle itself works normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811479798.7A CN109358211A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile charge fault detection system and detection method |
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| CN201811479798.7A CN109358211A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile charge fault detection system and detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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