CN106226610B - A kind of direct-current charging interface of electric automobile test macro and test method - Google Patents
A kind of direct-current charging interface of electric automobile test macro and test method Download PDFInfo
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- CN106226610B CN106226610B CN201610107075.9A CN201610107075A CN106226610B CN 106226610 B CN106226610 B CN 106226610B CN 201610107075 A CN201610107075 A CN 201610107075A CN 106226610 B CN106226610 B CN 106226610B
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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
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Abstract
The invention discloses a kind of direct-current charging interface of electric automobile test macros and test method that belong to electric car electrically-charging equipment applied technical field, the test macro includes test macro socket and plug, mode switching circuit, CAN test cell, left and right normally opened relay group (k1‑k19), acquisition control plate and upper structure at；In the case where guaranteeing that non-on-board charger vehicle plug to be measured connects intact with electric car vehicle socket to be measured, can judge whether non-on-board charger vehicle plug to be measured and each contact of electric car vehicle socket to be measured connect whether normal, internal circuit is in normal condition by contact one by one, to charging interface communication performance overall merit.This method analyzes direct-current charging interface of electric automobile failure, early warning, will substantially reduce the workload in electric car charging day-to-day operation maintenance and electrically-charging equipment delivery receiving acceptance, and be conducive to the large-scale promotion application of electric car.
Description
Technical field
The invention belongs to electric car electrically-charging equipment applied technical field, in particular to a kind of direct-current charging interface of electric automobile
Test macro and test method.
Background technique
The departments such as State General Administration for Quality Supervision, joint National Energy Board, National Standards Commission, Ministry of Industry and Information, the Department of Science and Technology have issued new revision
5 national standards of electric vehicle charge interface and communication protocol etc., and formally executed on January 1st, 2016, comprising: 1.GB
" 18487.1-2015 electric car conduction charging system-part 1: General Requirement "；2.GB 20234.1-2015 " electronic vapour
Vehicle conducts chargeable connection device-part 1: General Requirement "；3.GB 20234.2-2015 " use by electric car conduction charging
Attachment device-part 2: alternating-current charging interface "；4.GB 20234.3-2015 " electric car conduction charging connection dress
Set-third portion: direct-current charging interface "；5.GB 27930-2015 " the off-board conduction-type-charger of electric car and battery
Communication protocol between management system ".Effective compatibility for solving charging pile and safety are asked in the promotion and implementation of new national standard
Topic promotes vehicle and the simultaneously match of stake to develop.
As electric car electrically-charging equipment is built and is applied on a large scale, the charging of electric car conduction charging connecting device
Interface connectivity problem will become increasingly conspicuous, major embodiment are as follows: 1. electrically-charging equipments construction after the completion of check and accept when need to charging pile into
Row basic connecting test and communication test；2. it is abnormal if there is charging in the daily charging process of electric car, how to sentence
The problem of disconnected the problem of being charging pile side or electric car side.If (can be filled guaranteeing non-on-board charger vehicle plug to be measured
Electric rifle) and electric car vehicle socket to be measured intact (not dismantling) in the case where solve the problems, such as two above, it is straight to electric car
Current charge interface fault analyzed, early warning, will substantially reduce electric car charging daily maintenance and electrically-charging equipment construction is tested
Workload in receipts is conducive to the large-scale promotion application of electric car.
Summary of the invention
The purpose of the present invention is to propose to a kind of direct-current charging interface of electric automobile test macros and test method, feature to exist
In the direct-current charging interface of electric automobile test macro includes system receptacle, system plug, mode switching circuit, the first CAN survey
Try unit 1, the 2nd CAN test cell 2, left normally opened relay group (k1-k9), right normally opened relay group (k10-k18), acquisition control
Plate and host computer；Switching logic control module is connected with mode switching circuit；
The acquisition control plate includes switching logic control module, sampling resistor R1-R17, sampled point AD1-AD14, normally opened open
Close S1-S4With DC voltage source U1-U5；Wherein R3And R17For high accuracy number potentiometer；The acquisition control plate is provided with pinAnd the k with left and right normally opened relay group1-k18It is correspondingly connected with；Wherein R3And R17For high accuracy number potentiometer, R1=R2
=R3=20k Ω, R15=R16=R17=20k Ω, R4--R14It is respectively 1k Ω, U1-U5It is 12V；
The host computer is adopted by virtual BMS (battery management system) module, virtual non-on-board charger communication module, data
Collect module and data analysis and processing module is constituted, wherein the k of virtual BMS module and left normally opened relay group4、k5Connection；Virtually
The k of non-on-board charger communication module and right normally opened relay group14、k15Connection；Data acquisition module and Data Analysis Services mould
Block connection；Data Analysis Services module is separately connected the first CAN test cell 1 and the 2nd CAN test cell 2.
The test macro socket and corresponding non-on-board charger vehicle plug and test macro plug and corresponding electricity
Electrical automobile vehicle socket 9 contacts having the same, 9 contacts are followed successively by DC power supply positive (DC+), DC power supply from top to bottom
Negative (DC-), protective grounding (PE), charging communication CAN_H (S+) and charging communication CAN_L (S-), the confirmation of the first charging connection
(CC1), the second charging connection confirmation (CC2), low pressure accessory power supply positive (A+), low pressure accessory power supply bear (A-).
The test pattern switching circuit has the two groups of switching pins in left and right, and 9, left side pin is the same as left normally opened relay group
K1-k9It is correspondingly connected with 9 contacts of test macro socket together；K of 9, the right pin with right normally opened relay group18-k10
It is correspondingly connected with 9 contacts of test macro plug together.
The acquisition control plate is provided with pinSampling resistor R1、R2、R31. and pin it is connected in series in pin
Between 2., switch S1One end ground connection, another termination sampling resistor R1And R3Points of common connection, switch S2One end ground connection, the other end
Meet sampling resistor R2And R3Points of common connection；Sampling resistor R4、R5With DC voltage source U13. and ground pin is connected to after series connection
Between；Sampling resistor R6One end ground connection, another termination pins are 6.；Sampling resistor R7With DC voltage source U2It is connected to and draws after series connection
Foot is 7. between ground；Sampling resistor R8、R9Pin is connected to after series connection 8. between ground；9. pin is connected to the ground；Pin
10. being connected to the ground；PinThrough switch S3With sampling resistor R10Parallel-connection structure and DC voltage source U3It is grounded after series connection；Draw
FootSampled resistance R12With DC voltage source U4Ground connection；Sampling resistor R13、R14With DC voltage source U5It is connected to after series connection
PinBetween ground；Sampling resistor R15、R16、R17It is connected in series in pinAnd pinBetween, switch S4One termination
Ground, another termination sampling resistor R15And R17Points of common connection, switch S5One end ground connection, another termination sampling resistor R16And R17
Points of common connection.
Specific step is as follows for the direct-current charging interface of electric automobile test method:
1) according to non-on-board charger parameter to be measured: rated output voltage, output-current rating: and electric car to be measured is dynamic
Power battery parameter: voltage rating, battery capacity, peak power；Direct-current charging interface of electric automobile is tested by host computer and is
System carries out test parameter configuration: non-on-board charger rated output voltage to be measured and electric automobile power battery group voltage to be measured etc.
Grade；And Disconnected mode switching circuit, into the setup test stage；
2) it is closed the k of left normally opened relay group3, acquire AD2Point current potential, if AD2Point current potential is 6V, then to be measured off-board
Charging rolling stock plug is connect normally with the protective grounding (PE) of test macro socket；If AD2Point current potential is 12V, then to be measured
Non-on-board charger vehicle plug and test macro socket protective ground connection (PE) malunion are normal, disconnect after the completion of test left normally opened
The k of relay group3；
3) it is closed the k of left normally opened relay group6, acquire AD5Point current potential, if AD5Point current potential is 4V, then to be measured off-board
Charging rolling stock plug is connect normally with the first charging connection of test macro socket confirmation (CC1)；If AD5Point current potential is 0V,
Then the first charging connection confirmation (CC1) malunion of non-on-board charger vehicle plug to be measured and test macro socket is normal, surveys
The k of left normally opened relay group is kept after the completion of examination6Closure；
4) it is closed the k of left normally opened relay group8And k9, acquire AD7Point current potential, if AD7Point current potential is 6V, then to be measured non-
Vehicle-mounted charge rolling stock plug is born (A-) with test macro socket low pressure accessory power supply positive (A+) and low pressure accessory power supply and is connect just
Often；If AD7Point current potential is 0V, then non-on-board charger vehicle plug to be measured and the positive (A of test macro socket low pressure accessory power supply
+) and low pressure accessory power supply to bear (A-) malunion normal, the k of left normally opened relay group is disconnected after the completion of test8And k9；
5) it is closed the k of left normally opened relay group7, acquire AD6Point current potential, if AD6Point current potential is 6V, then to be measured off-board
Charging rolling stock plug is connect normally with the second charging connection of test macro socket confirmation (CC2)；If AD2Point current potential is 12V,
Then non-on-board charger vehicle plug to be measured and the second charging connection of test macro socket confirmation (CC2) malunion are normal, test
The k of left normally opened relay group is disconnected after the completion7；
6) it is closed the k of left normally opened relay group4And k5, communication handshake message is sent by the virtual BMS module period, and it is to be measured
After non-on-board charger controller completes communication handshake, the charge requirement for simulating electric car BMS is communicated report by virtual BMS module
Text is sent to non-on-board charger controller to be measured, monitors the communication message in CAN bus by the first CAN test cell 1, into
And communication message consistency and real-time are evaluated by Data Analysis Services module, while passing through sampled point AD3And AD4Point current potential is sentenced
Whether fixed its meets above earth potential less than 25V, AD3And AD4Between current potential be less than the requirement of 0.5V, keep left normally opened after the completion of test
The k of relay group4And k5Closure；Wherein, non-on-board charger controller is GB 18487.1-2015 " electric car conduction charging
System-part 1: General Requirement " scheme in regulation B.1 shown in non-on-board charger intrinsic component；
7) it is closed the k of left normally opened relay group1And k2, acquire AD1Point current potential, if AD1Point current potential be nonzero value, then to
Non-on-board charger vehicle plug is surveyed to connect just with the DC power supply of test macro socket positive (DC+) and DC power supply negative (DC-)
Often；If AD1Point current potential is 0V, then positive (the DC of DC power supply of non-on-board charger vehicle plug to be measured and test macro socket
+) and DC power supply bear (DC-) malunion it is normal, test complete rear left normally opened relay group k1And k2Closure；
8) closure switch S1And S2, read in non-on-board charger controller communication message to be measured by virtual BMS module
Insulation fault warning message, if Abnormal Insulation is alarmed, non-on-board charger vehicle Insulation monitoring to be measured is normal；If without exhausted
Edge abnormal alarm, then non-on-board charger vehicle Insulation monitoring to be measured is abnormal, and switch S is disconnected after the completion of test1And S2, disconnect left
The k of normally opened relay group1、k2、k4And k6；
9) it is closed the k of right normally opened relay group10And k11, disconnect switch S3, acquire AD8Point current potential, if AD8Putting current potential is
Nonzero value, then the low pressure accessory power supply positive (A+) and low pressure accessory power supply of electric car vehicle socket to be measured and test macro plug
Negative (A-) connection is normal；If AD8Point current potential is 0V, then the low pressure of electric car vehicle socket to be measured and test macro plug is auxiliary
Help power supply positive (A+) and negative (A-) malunion of low pressure accessory power supply normal, closure switch S after the completion of test1, keep it is right it is normally opened after
The k of electric appliance group10And k11Closure；
10) it is closed the k of right normally opened relay group16, acquire AD13Point current potential, if AD13Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the protective grounding (PE) of test macro plug；If AD13Point current potential is 0V, then to be measured electronic
Automobile socket and protective grounding (PE) malunion of test macro plug are normal, and right normally opened relay is disconnected after the completion of test
The k of group16；
11) it is closed the k of right normally opened relay group13, acquire AD10Point current potential, if AD10Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the first charging connection of test macro plug confirmation (CC1)；If AD10Point current potential is 0V,
Then the first charging connection confirmation (CC1) malunion of electric car vehicle socket to be measured and test macro plug is normal, tests
At the rear k for disconnecting right normally opened relay group13；
12) it is closed the k of right normally opened relay group12, acquire AD9Point current potential, if AD9Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the second charging connection of test macro plug confirmation (CC2)；If AD9Point current potential is 0V,
Then the second charging connection confirmation (CC2) malunion of electric car vehicle socket to be measured and test macro plug is normal, tests
At the rear k for keeping right normally opened relay group12Closure；
13) it is closed the k of right normally opened relay group14And k15, sent and communicated by the virtual non-on-board charger communication module period
Handshake message, after completing communication handshake with electric car vehicle controller BMS to be measured, simulation non-on-board charger controller is received
The charge requirement communication message of electric car BMS to be measured is sent out, and monitors the communication message in CAN bus by CAN test cell 2,
And then communication message consistency and real-time are evaluated by Data Analysis Services module, while passing through sampled point AD11And AD12Point electricity
Position determines whether it meets above earth potential less than 25V, AD11And AD12Current potential is less than the requirement of 0.5V between point, protects after the completion of test
Hold the k of right normally opened relay group14And k15Closure；Wherein, electric car vehicle controller is GB 18487.1-2015 " electronic vapour
Vehicle conducts charging system-part 1: General Requirement " scheme in regulation B.1 shown in electric car intrinsic component；
14) it is closed the k of right normally opened relay group17And k18, acquire AD14Point current potential, if AD14Point current potential is nonzero value, then
Electric car vehicle socket to be measured is born (DC-) with the DC power supply of test macro plug positive (DC+) and DC power supply and is connect normally；
If AD14Point current potential is 0V, then the DC power supply positive (DC+) and direct current of electric car vehicle socket to be measured and test macro plug
Negative (DC-) malunion of power supply is normal, and the k of right normally opened relay group is kept after the completion of test17And k18Closure；
15) closure switch S4And S5, electric car vehicle to be measured is read by virtual non-on-board charger communication module and is controlled
Insulation fault warning message in the BMS communication message of device, if Abnormal Insulation is alarmed, electric automobile insulation detection to be measured is just
Often；If alarmed without Abnormal Insulation, electric automobile insulation detection to be measured is abnormal, and switch S is disconnected after the completion of test4And S5、
Disconnect the k of right normally opened relay group10、k12、k14、k15、k17And k18；
16) if each contact of non-on-board charger vehicle plug to be measured is connected with each contact of electric car vehicle socket to be measured
Test is normal, then closed mode switching circuit, so that electric car to be measured is completed normal charging bootup process, passes through first
CAN test cell 1 and the 2nd CAN test cell 2 monitor the communication message in CAN bus, while acquiring charging communication CAN_H (S
+) to ground level, charging communication CAN_L (S-) to ground level, charging communication CAN_H (S+) and charging communicate CAN_L (S-)
Between level the integrated communication performance of CAN bus: total inorganic nitrogen, the message bit error rate, message one is evaluated after Data Analysis Services
Cause property and message real-time performance.
It, can be by non-on-board charger vehicle the beneficial effects of the invention are as follows when charging interface connection failure can not charge
Plug (charging gun) and electric car vehicle socket are attached state verification, and confirmation connects problematic contact；In addition, right
The communication performance of non-on-board charger controller or electric car vehicle controller BMS are tested, and test result can be intuitive
The communication performance of the clear tested communication system of evaluation, to potential faults present in direct-current charging interface of electric automobile operation into
Row early warning；Solve the problems, such as that direct-current charging interface of electric automobile fault pre-alarming in practical applications, tool have significant practical applications.
Detailed description of the invention
Fig. 1 is direct-current charging interface of electric automobile test principle figure.
Specific embodiment
The present invention proposes a kind of direct-current charging interface of electric automobile test macro and test method, below with reference to Fig. 1 to this
Invention is explained.
Fig. 1 show the test of direct-current charging interface of electric automobile used in direct-current charging interface of electric automobile test method system
System schematic diagram.In figure, which includes test macro socket, test macro plug, mould
Formula switching circuit, the 2nd CAN test cell 2, has normally open contact k at the first CAN test cell 11-k9Left normally opened relay
Group has normally open contact k10-k18Right normally opened relay group, acquisition control plate and upper structure at；Switching logic control module
It is connected with mode switching circuit；
The acquisition control plate includes switching logic control module, sampling resistor R1-R17, sampled point AD1-AD14, normally opened open
Close S1-S4With DC voltage source U1-U5；Wherein R3And R17For high accuracy number potentiometer；The acquisition control plate is provided with pinAnd with left and right normally opened relay group (k1-k18) be correspondingly connected with；Wherein R3And R17For high accuracy number potentiometer, R1=R2
=R3=20k Ω, R15=R16=R17=20k Ω, R4--R14It is respectively 1k Ω, U1-U5It is 12V；
The host computer is adopted by virtual BMS (battery management system) module, virtual non-on-board charger communication module, data
Collect module and data analysis and processing module is constituted, wherein the k of virtual BMS module and left normally opened relay group4、k5Connection；Virtually
The k of non-on-board charger communication module and right normally opened relay group14、k15Connection；Data acquisition module and Data Analysis Services mould
Block connection；Data Analysis Services module is separately connected the first CAN test cell 1 and the 2nd CAN test cell 2.
The test macro socket and corresponding non-on-board charger vehicle plug and test macro plug and corresponding electricity
Electrical automobile vehicle socket 9 contacts having the same, 9 contacts are followed successively by DC power supply positive (DC+), DC power supply from top to bottom
Negative (DC-), protective grounding (PE), charging communication CAN_H (S+) and charging communication CAN_L (S-), the confirmation of the first charging connection
(CC1), the second charging connection confirmation (CC2), low pressure accessory power supply positive (A+), low pressure accessory power supply bear (A-).
The test pattern switching circuit has the two groups of switching pins in left and right, and 9, left side pin is the same as left normally opened relay group
K1-k9It is correspondingly connected with 9 contacts of test macro socket together；K of 9, the right pin with right normally opened relay group18-k10
It is correspondingly connected with 9 contacts of test macro plug together.
The acquisition control plate is provided with pinSampling resistor R1、R2、R31. and pin it is connected in series in pin
Between 2., switch S1One end ground connection, another termination sampling resistor R1And R3Points of common connection, switch S2One end ground connection, the other end
Meet sampling resistor R2And R3Points of common connection；Sampling resistor R4、R5With DC voltage source U13. and ground pin is connected to after series connection
Between；Sampling resistor R6One end ground connection, another termination pins are 6.；Sampling resistor R7With DC voltage source U2It is connected to and draws after series connection
Foot is 7. between ground；Sampling resistor R8、R9Pin is connected to after series connection 8. between ground；9. pin is connected to the ground；Pin
10. being connected to the ground；PinThrough switch S3With sampling resistor R10Parallel-connection structure and DC voltage source U3It is grounded after series connection；Draw
FootSampled resistance R12With DC voltage source U4Ground connection；Sampling resistor R13、R14With DC voltage source U5It is connected to and draws after series connection
FootBetween ground；Sampling resistor R15、R16、R17It is connected in series in pinAnd pinBetween, switch S4One end ground connection,
Another termination sampling resistor R15And R17Points of common connection, switch S5One end ground connection, another termination sampling resistor R16And R17Public affairs
Tie point altogether.
Embodiment: specific step is as follows for direct-current charging interface of electric automobile test method:
1) according to non-on-board charger parameter to be measured (voltage rating, rated current) and electric automobile power battery group to be measured
Parameter (voltage rating, battery capacity, peak power) surveys direct-current charging interface of electric automobile test macro by host computer
Try parameter configuration: non-on-board charger rated output voltage to be measured and electric automobile power battery group voltage class to be measured；And break
On-mode switching circuit, into the setup test stage；
2) it is closed the k of left normally opened relay group3, acquire AD2Point current potential, if AD2Point current potential is 6V, then to be measured off-board
Charging rolling stock plug is connect normally with the protective grounding (PE) of test macro socket；If AD2Point current potential is 12V, then to be measured
Non-on-board charger vehicle plug and test macro socket protective ground connection (PE) malunion are normal, disconnect after the completion of test left normally opened
The contact k of relay group3；
3) it is closed the k of left normally opened relay group6, acquire AD5Point current potential, if AD5Point current potential is 4V, then to be measured off-board
Charging rolling stock plug is connect normally with the first charging connection of test macro socket confirmation (CC1)；If AD5Point current potential is 0V,
Then the first charging connection confirmation (CC1) malunion of non-on-board charger vehicle plug to be measured and test macro socket is normal, surveys
The k of left normally opened relay group is kept after the completion of examination6Closure；
4) it is closed the k of left normally opened relay group8And k9, acquire AD7Point current potential, if AD7Point current potential is 6V, then to be measured non-
Vehicle-mounted charge rolling stock plug is born (A-) with test macro socket low pressure accessory power supply positive (A+) and low pressure accessory power supply and is connect just
Often；If AD7Point current potential is 0V, then non-on-board charger vehicle plug to be measured and the positive (A of test macro socket low pressure accessory power supply
+) and low pressure accessory power supply to bear (A-) malunion normal, the k of left normally opened relay group is disconnected after the completion of test8And k9；
5) it is closed the k of left normally opened relay group7, acquire AD6Point current potential, if AD6Point current potential is 6V, then to be measured off-board
Charging rolling stock plug is connect normally with the second charging connection of test macro socket confirmation (CC2)；If AD2Point current potential is 12V,
Then non-on-board charger vehicle plug to be measured and the second charging connection of test macro socket confirmation (CC2) malunion are normal, test
The k of left normally opened relay group is disconnected after the completion7；
6) it is closed the k of left normally opened relay group4And k5, communication handshake message is sent by the virtual BMS module period, and it is to be measured
After non-on-board charger controller completes communication handshake, the charge requirement for simulating electric car BMS is communicated report by virtual BMS module
Text is sent to non-on-board charger controller to be measured, monitors the communication message in CAN bus by the first CAN test cell 1, into
And communication message consistency and real-time are evaluated by Data Analysis Services module, while passing through sampled point AD3And AD4Point current potential is sentenced
Whether fixed its meets above earth potential less than 25V, AD3And AD4Between current potential be less than the requirement of 0.5V, keep left normally opened after the completion of test
The k of relay group4And k5Closure；
7) it is closed the k of left normally opened relay group1And k2, acquire AD1Point current potential, if AD1Point current potential be nonzero value, then to
Non-on-board charger vehicle plug is surveyed to connect just with the DC power supply of test macro socket positive (DC+) and DC power supply negative (DC-)
Often；If AD1Point current potential is 0V, then positive (the DC of DC power supply of non-on-board charger vehicle plug to be measured and test macro socket
+) and DC power supply bear (DC-) malunion it is normal, test complete rear left normally opened relay group k1And k2Closure；
8) closure switch S1And S2, read in non-on-board charger controller communication message to be measured by virtual BMS module
Insulation fault warning message, if Abnormal Insulation is alarmed, non-on-board charger vehicle Insulation monitoring to be measured is normal；If without exhausted
Edge abnormal alarm, then non-on-board charger vehicle Insulation monitoring to be measured is abnormal, and switch S is disconnected after the completion of test1And S2, disconnect left
The k of normally opened relay group1、k2、k4And k6；
9) it is closed the k of right normally opened relay group10And k11, disconnect switch S3, acquire AD8Point current potential, if AD8Putting current potential is
Nonzero value, then the low pressure accessory power supply positive (A+) and low pressure accessory power supply of electric car vehicle socket to be measured and test macro plug
Negative (A-) connection is normal；If AD8Point current potential is 0V, then the low pressure of electric car vehicle socket to be measured and test macro plug is auxiliary
Help power supply positive (A+) and negative (A-) malunion of low pressure accessory power supply normal, closure switch S after the completion of test1, keep it is right it is normally opened after
The k of electric appliance group10And k11Closure；
10) it is closed the k of right normally opened relay group16, acquire AD13Point current potential, if AD13Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the protective grounding (PE) of test macro plug；If AD13Point current potential is 0V, then to be measured electronic
Automobile socket and protective grounding (PE) malunion of test macro plug are normal, and right normally opened relay is disconnected after the completion of test
The k of group16；
11) it is closed the k of right normally opened relay group13, acquire AD10Point current potential, if AD10Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the first charging connection of test macro plug confirmation (CC1)；If AD10Point current potential is 0V,
Then the first charging connection confirmation (CC1) malunion of electric car vehicle socket to be measured and test macro plug is normal, tests
At the rear k for disconnecting right normally opened relay group13；
12) it is closed the k of right normally opened relay group12, acquire AD9Point current potential, if AD9Point current potential is 6V, then to be measured electronic
Automobile socket is connect normally with the second charging connection of test macro plug confirmation (CC2)；If AD9Point current potential is 0V,
Then the second charging connection confirmation (CC2) malunion of electric car vehicle socket to be measured and test macro plug is normal, tests
At the rear k for keeping right normally opened relay group12Closure；
13) it is closed the k of right normally opened relay group14And k15, sent and communicated by the virtual non-on-board charger communication module period
Handshake message, after completing communication handshake with electric car BMS to be measured, simulation non-on-board charger controller receives electronic vapour to be measured
The charge requirement communication message of vehicle BMS is sent out, and monitors the communication message in CAN bus by CAN test cell 2, and then by data
Analysis and processing module evaluates communication message consistency and real-time, while passing through sampled point AD11And AD12Point current potential determines that it is
The no above earth potential that meets is less than 25V, AD3And AD4Between current potential be less than the requirement of 0.5V, keep right normally opened relay after the completion of test
The k of group14And k15Closure.
14) it is closed the k of right normally opened relay group17And k18, acquire AD14Point current potential, if AD14Point current potential is nonzero value, then
Electric car vehicle socket to be measured is born (DC-) with the DC power supply of test macro plug positive (DC+) and DC power supply and is connect normally；
If AD14Point current potential is 0V, then the DC power supply positive (DC+) and direct current of electric car vehicle socket to be measured and test macro plug
Negative (DC-) malunion of power supply is normal, and the k of right normally opened relay group is kept after the completion of test17And k18Closure；
15) closure switch S4And S5, electric car BMS to be measured is read by virtual non-on-board charger communication module and is communicated
Insulation fault warning message in message, if Abnormal Insulation is alarmed, electric automobile insulation detection to be measured is normal；If no
Abnormal Insulation alarm, then electric automobile insulation detection to be measured is abnormal, and switch S is disconnected after the completion of test4And S5, disconnect it is right normally opened
The k of relay group10、k12、k14、k15、k17And k18；
16) if each contact of non-on-board charger vehicle plug to be measured is connected with each contact of electric car vehicle socket to be measured
Test is normal, then closed mode switching circuit, so that electric car to be measured is completed normal charging bootup process, passes through first
CAN test cell 1 and the 2nd CAN test cell 2 monitor the communication message in CAN bus, while acquiring charging communication CAN_H (S
+) to ground level, charging communication CAN_L (S-) to ground level, charging communication CAN_H (S+) and charging communicate CAN_L (S-)
Between level the integrated communication performance of CAN bus: total inorganic nitrogen, the message bit error rate, message one is evaluated after Data Analysis Services
Cause property and message real-time performance.
In summary, the present invention solves the problems, such as direct-current charging interface of electric automobile accident analysis early warning in practical applications
(including contact connection status judgement and communication performance evaluation), practical application value is: when charging interface connection failure without
When method charges, it can be surveyed by being attached state to non-on-board charger vehicle plug (charging gun) and electric car vehicle socket
Examination, confirmation connect problematic contact；In addition, leading to non-on-board charger controller or electric car vehicle controller BMS
Letter performance is tested, communication performance (total inorganic nitrogen, report of the tested communication system of the evaluation that test result can be simple and clear
The literary bit error rate, message consistency, message real-time performance), to direct-current charging interface of electric automobile operation present in potential faults into
Row early warning.
Claims (3)
1. a kind of direct-current charging interface of electric automobile test macro, which includes test
System receptacle, test macro plug, mode switching circuit, the first CAN test cell (1), the 2nd CAN test cell (2), Zuo Chang
Open relay group (k1-k9), right normally opened relay group (k10-k18), acquisition control plate and host computer；It is characterized in that,
The acquisition control plate includes switching logic control module, sampling resistor R1-R17, sampled point AD1-AD14, normal open switch S1-
S4With DC voltage source U1-U5；Wherein, switching logic control module is connected with mode switching circuit；R3And R17For high accuracy number
Potentiometer；The acquisition control plate is provided with pinAnd with left and right normally opened relay group (k1-k18) be correspondingly connected with；R1=R2
=R3=20k Ω, R15=R16=R17=20k Ω, R4-R14It is respectively 1k Ω, U1-U5It is 12V；
The host computer is by virtual BMS module, virtual non-on-board charger communication module, data acquisition module and data analysis
Manage module composition, wherein the k of virtual BMS module and left normally opened relay group4、k5Connection；Virtual non-on-board charger communicates mould
The k of block and right normally opened relay group14、k15Connection；Data acquisition module is connected with data analysis and processing module；At data analysis
Reason module is separately connected the first CAN test cell (1) and the 2nd CAN test cell (2)；
The test macro socket and corresponding non-on-board charger vehicle plug and test macro plug and corresponding electronic vapour
Vehicle vehicle socket 9 contacts having the same, it is negative that 9 contacts are followed successively by DC power supply positive (DC+), DC power supply from top to bottom
(DC-), protective grounding (PE), charging communication CAN_H (S+) and charging communication CAN_L (S-), the confirmation of the first charging connection
(CC1), the second charging connection confirmation (CC2), low pressure accessory power supply positive (A+), low pressure accessory power supply bear (A-)；
The mode switching circuit has the two groups of switching pins in left and right, and 9, left side pin is the same as left normally opened relay group (k1-k9) one
Act 9 contacts for being correspondingly connected with test macro socket；9, the right pin is the same as right normally opened relay group (k18-k10) correspond to together
It is connected to 9 contacts of test macro plug.
2. direct-current charging interface of electric automobile test macro according to claim 1, which is characterized in that the acquisition control plate
It is provided with pinSampling resistor R1、R2、R3Be connected in series in pin 1. and pin 2. between, switch S1One end ground connection,
Another termination sampling resistor R1And R3Points of common connection, switch S2One end ground connection, another termination sampling resistor R2And R3It is public
Tie point；Sampling resistor R4、R5With DC voltage source U1Pin is connected to after series connection 3. between ground；Sampling resistor R6One termination
Ground, another termination pins are 6.；Sampling resistor R7With DC voltage source U2Pin is connected to after series connection 7. between ground；Sampling resistor
R8、R9Pin is connected to after series connection 8. between ground；9. pin is connected to the ground；10. pin is connected to the ground；Pin
Through switch S3With sampling resistor R10Parallel-connection structure and DC voltage source U3It is grounded after series connection；PinSampled resistance R12With it is straight
Galvanic electricity potential source U4Ground connection；Sampling resistor R13、R14With DC voltage source U5Pin is connected to after series connectionBetween ground；Sampling electricity
Hinder R15、R16、R17It is connected in series in pinAnd pinBetween, switch S4One end ground connection, another termination sampling resistor R15With
R17Points of common connection, switch S5One end ground connection, another termination sampling resistor R16And R17Points of common connection.
3. a kind of direct-current charging interface of electric automobile test macro described in claim 1 is to direct-current charging interface of electric automobile
Test method, which is characterized in that the test method is the method for carrying out accident analysis early warning to direct-current charging interface of electric automobile,
Specific step is as follows:
1) according to non-on-board charger parameter to be measured: voltage rating, rated current；And electric automobile power battery group ginseng to be measured
Number: voltage rating, battery capacity, peak power test direct-current charging interface of electric automobile test macro by host computer
Parameter configuration: non-on-board charger rated output voltage to be measured and electric automobile power battery group voltage class to be measured；And it disconnects
Mode switching circuit, into the setup test stage；
2) it is closed the k of left normally opened relay group3, acquire AD2Point current potential, if AD2Point current potential is 6V, then off-board charging to be measured
Rolling stock plug is connect normally with the protective grounding (PE) of test macro socket；If AD2Point current potential is 12V, then non-vehicle to be measured
Carry charging rolling stock plug and test macro socket protective ground connection (PE) malunion it is normal, test after the completion of disconnect a left side it is normally opened after
The k of electric appliance group3；
3) it is closed the k of left normally opened relay group6, acquire AD5Point current potential, if AD5Point current potential is 4V, then off-board charging to be measured
Rolling stock plug is connect normally with the first charging connection of test macro socket confirmation (CC1)；If AD5Point current potential be 0V, then to
It surveys non-on-board charger vehicle plug and the first charging connection confirmation (CC1) malunion of test macro socket is normal, test
At the rear contact k for keeping left normally opened relay group6Closure；
4) it is closed the k of left normally opened relay group8And k9, acquire AD7Point current potential, if AD7Point current potential is 6V, then to be measured off-board to fill
Motor vehicle plug is born (A-) with test macro socket low pressure accessory power supply positive (A+) and low pressure accessory power supply and is connect normally；If
AD7Point current potential is 0V, then non-on-board charger vehicle plug to be measured and test macro socket low pressure accessory power supply positive (A+) and low
Pressing accessory power supply to bear, (A-) malunion is normal, and the k of left normally opened relay group is disconnected after the completion of test8And k9；
5) it is closed the k of left normally opened relay group7, acquire AD6Point current potential, if AD6Point current potential is 6V, then off-board charging to be measured
Rolling stock plug is connect normally with the second charging connection of test macro socket confirmation (CC2)；If AD6Point current potential be 12V, then to
It surveys non-on-board charger vehicle plug and the second charging connection of test macro socket confirmation (CC2) malunion is normal, test is completed
The k of left normally opened relay group is disconnected afterwards7；
6) it is closed the k of left normally opened relay group4And k5, communication handshake message is sent by the virtual BMS module period, with non-vehicle to be measured
After carrying charger controller completion communication handshake, the charge requirement communication message that virtual BMS module will simulate electric car BMS is sent out
Non-on-board charger controller to be measured is given, the communication message in CAN bus is monitored by the first CAN test cell (1), in turn
Communication message consistency and real-time are evaluated by Data Analysis Services module, while passing through sampled point AD3And AD4Point current potential determines
Whether it meets above earth potential less than 25V, AD3And AD4Between current potential be less than the requirement of 0.5V, kept after the completion of test it is left it is normally opened after
The k of electric appliance group4And k5Closure；Wherein, non-on-board charger controller is GB 18487.1-2015 " electric car conduction Charging
Unified part 1: General Requirement " scheme in regulation B.1 shown in the intrinsic component of non-on-board charger；
7) it is closed the k of left normally opened relay group1And k2, acquire AD1Point current potential, if AD1Point current potential is nonzero value, then non-vehicle to be measured
Charging rolling stock plug is carried to connect normally with the DC power supply of test macro socket positive (DC+) and DC power supply negative (DC-)；If
AD1Point current potential is 0V, then the DC power supply positive (DC+) and direct current of non-on-board charger vehicle plug to be measured and test macro socket
Negative (DC-) malunion of power supply is normal, and the k of left normally opened relay group is kept after the completion of test1And k2Closure；
8) closure switch S1And S2, the insulation in non-on-board charger controller communication message to be measured is read by virtual BMS module
Fault alarm message, if Abnormal Insulation is alarmed, non-on-board charger vehicle Insulation monitoring to be measured is normal；If it is different not insulate
Often alarm, then non-on-board charger vehicle Insulation monitoring to be measured is abnormal, and switch S is disconnected after the completion of test1And S2, disconnect left normally opened
The k of relay group1、k2、k4And k6；
9) it is closed the k of right normally opened relay group10And k11, disconnect switch S3, acquire AD8Point current potential, if AD8Point current potential is non-zero
Value, then the low pressure accessory power supply positive (A+) and low pressure accessory power supply of electric car vehicle socket to be measured and test macro plug are negative
(A-) connection is normal；If AD8Point current potential is 0V, then the low pressure of electric car vehicle socket to be measured and test macro plug assists
Power supply positive (A+) and negative (A-) malunion of low pressure accessory power supply are normal, closure switch S after the completion of test3, keep right normally opened relay
The k of device group10And k11Closure；
10) it is closed the k of right normally opened relay group16, acquire AD13Point current potential, if AD13Point current potential is 6V, then electric car to be measured
Vehicle socket is connect normally with the protective grounding (PE) of test macro plug；If AD13Point current potential is 0V, then electric car to be measured
Vehicle socket and protective grounding (PE) malunion of test macro plug are normal, and right normally opened relay group is disconnected after the completion of test
k16；
11) it is closed the k of right normally opened relay group13, acquire AD10Point current potential, if AD10Point current potential is 6V, then electric car to be measured
Vehicle socket is connect normally with the first charging connection of test macro plug confirmation (CC1)；If AD10Point current potential be 0V, then to
It surveys electric car vehicle socket and the first charging connection confirmation (CC1) malunion of test macro plug is normal, after the completion of test
Disconnect the k of right normally opened relay group13；
12) it is closed the k of right normally opened relay group12, acquire AD9Point current potential, if AD9Point current potential is 6V, then electric automobile to be measured
Socket is connect normally with the second charging connection of test macro plug confirmation (CC2)；If AD9Point current potential is 0V, then to be measured
Electric car vehicle socket and the second charging connection confirmation (CC2) malunion of test macro plug are normal, protect after the completion of test
Hold the k of right normally opened relay group12Closure；
13) it is closed the k of right normally opened relay group14And k15, communication handshake is sent by the virtual non-on-board charger communication module period
Message, after completing communication handshake with the BMS of electric car vehicle controller to be measured, simulation non-on-board charger controller receive to
The BMS charge requirement communication message for surveying electric car vehicle controller is monitored in CAN bus by the 2nd CAN test cell (2)
Communication message, and then communication message consistency and real-time are evaluated by Data Analysis Services module, while passing through sampled point AD11
And AD12Point current potential determines whether it meets above earth potential less than 25V, AD11And AD12Between current potential be less than 0.5V requirement, test
At the rear k for keeping right normally opened relay group14And k15Closure；Wherein, electric car vehicle controller is GB 18487.1-2015
The intrinsic component of B.1 electric car is schemed in " electric car conduction charging system-part 1: General Requirement " regulation；
14) it is closed the k of right normally opened relay group17And k18, acquire AD14Point current potential, if AD14Point current potential is nonzero value, then to be measured
Electric car vehicle socket is born (DC-) with the DC power supply of test macro plug positive (DC+) and DC power supply and is connect normally；If
AD14Point current potential is 0V, then the DC power supply positive (DC+) and DC power supply of electric car vehicle socket to be measured and test macro plug
Negative (DC-) malunion is normal, and the k of right normally opened relay group is kept after the completion of test17And k18Closure；
15) closure switch S4And S5, electric car BMS communication message to be measured is read by virtual non-on-board charger communication module
In insulation fault warning message, if Abnormal Insulation is alarmed, electric automobile insulation to be measured detection is normal；If do not insulated
Abnormal alarm, then electric automobile insulation detection to be measured is abnormal, and switch S is disconnected after the completion of test4And S5, disconnect right normally opened relay
The k of device group10、k12、k14、k15、k17And k18；
If 16) each contact of non-on-board charger vehicle plug to be measured and each contact connecting test of electric car vehicle socket to be measured
Normal, then closed mode switching circuit, makes electric car to be measured complete normal charging bootup process, is surveyed by the first CAN
The communication message on unit (1) and the 2nd CAN test cell (2) monitoring CAN bus is tried, while acquiring charging communication CAN_H (S
+) to ground level, charging communication CAN_L (S-) to ground level, charging communication CAN_H (S+) and charging communicate CAN_L (S-)
Between level the integrated communication performance of CAN bus: total inorganic nitrogen, the message bit error rate, message one is evaluated after Data Analysis Services
Cause property and message real-time performance.
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| CN109747468A (en) * | 2019-03-08 | 2019-05-14 | 北京博电新力电气股份有限公司 | A kind of electric car DC charging detection device |
| CN111055685A (en) * | 2019-11-29 | 2020-04-24 | 合肥国轩高科动力能源有限公司 | Interactive simulation charging test system and test method |
| CN112217255B (en) * | 2020-09-29 | 2023-05-02 | 青岛特来电新能源科技有限公司 | Vehicle and charging control system thereof |
| CN113438127A (en) * | 2021-06-18 | 2021-09-24 | 中国第一汽车股份有限公司 | Electric vehicle direct current charging communication intelligent test method, device, terminal and storage medium |
| CN114236429A (en) * | 2021-12-14 | 2022-03-25 | 绿能慧充数字技术有限公司 | Fault detection device and method for charging gun and vehicle gun seat |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389432A (en) * | 2013-08-06 | 2013-11-13 | 国网电力科学研究院 | Test device for charging control process of DC (direct current) battery charger of electric automobile and implementation method of device |
| CN103715738A (en) * | 2013-12-30 | 2014-04-09 | 上海瑞伯德智能系统科技有限公司 | Bi-directional connection confirmation circuit for charging pile and vehicle |
| CN103760891A (en) * | 2014-01-16 | 2014-04-30 | 北京智行鸿远汽车技术有限公司 | Hardware-in-loop testing device and method for automobile non-vehicle-mounted direct-current charging control device |
| CN104102147A (en) * | 2014-07-11 | 2014-10-15 | 国家电网公司 | Control device for simulating different output states of battery charger of electric automobile and realizing method thereof |
| CN204376500U (en) * | 2015-02-16 | 2015-06-03 | 安徽江淮汽车股份有限公司 | Charging system for electric automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5553422B2 (en) * | 2011-10-04 | 2014-07-16 | 日東工業株式会社 | Portable inspection device for vehicle charging device |
-
2016
- 2016-02-26 CN CN201610107075.9A patent/CN106226610B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389432A (en) * | 2013-08-06 | 2013-11-13 | 国网电力科学研究院 | Test device for charging control process of DC (direct current) battery charger of electric automobile and implementation method of device |
| CN103715738A (en) * | 2013-12-30 | 2014-04-09 | 上海瑞伯德智能系统科技有限公司 | Bi-directional connection confirmation circuit for charging pile and vehicle |
| CN103760891A (en) * | 2014-01-16 | 2014-04-30 | 北京智行鸿远汽车技术有限公司 | Hardware-in-loop testing device and method for automobile non-vehicle-mounted direct-current charging control device |
| CN104102147A (en) * | 2014-07-11 | 2014-10-15 | 国家电网公司 | Control device for simulating different output states of battery charger of electric automobile and realizing method thereof |
| CN204376500U (en) * | 2015-02-16 | 2015-06-03 | 安徽江淮汽车股份有限公司 | Charging system for electric automobile |
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