CN105610219B - A kind of charge fault diagnostic method - Google Patents

A kind of charge fault diagnostic method Download PDF

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Publication number
CN105610219B
CN105610219B CN201610045131.0A CN201610045131A CN105610219B CN 105610219 B CN105610219 B CN 105610219B CN 201610045131 A CN201610045131 A CN 201610045131A CN 105610219 B CN105610219 B CN 105610219B
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charge
message
vehicle
charging
quick
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CN105610219A (en
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丁更新
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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    • H02J7/0021—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The present invention relates to charge fault diagnostic fields, and in particular to a kind of method for diagnosing faults of the state conflict of quick charge and vehicle-mounted charge, this method include：Start diagnosis；Acquisition charging wake-up signal in real time；It detects whether to receive vehicle-mounted charge demand message；If so, it detects whether to receive quick charge demand message；If so, determine charging interface maloperation.By the present invention, vehicle is solved when quick charge and vehicle-mounted charge act simultaneously, the uncertain problem of charged state.

Description

A kind of charge fault diagnostic method
Technical field
The present invention relates to charge fault diagnostic fields, and in particular to the state conflict of a kind of quick charge and vehicle-mounted charge Charge fault diagnostic method.
Background technology
Electric vehicle has become current more popular automobile product, for the charge mode of electric vehicle, is broadly divided into Quick charge and vehicle-mounted charge both of which, wherein, quick charge is directly to carry out large current charge to automobile by charging pile, And vehicle-mounted charge is then by onboard charger, outside access 220V AC powers, charge power is limited.
If Fig. 1 is charging system structure diagram of the prior art, after quick charge stake is connected with vehicle, quickly Charging pile wakes up interface by charging of the onboard charger to entire car controller and sends a charging wake-up signal, entire car controller The charging wake-up signal is received i.e. into high pressure power-up state (being attracted main negative relay and main positive relay), at this point, with Relevant high voltage component such as battery management system, onboard charger etc. high pressure that charges are powered on (at this point, the positive relay of fast charge, fast Fill negative relay, the positive relay that charges, the negative relay that charges is attracted), quick charge stake and vehicle are communicated, and complete to charge Control process, at the end of charging, battery management system is ceased and desisted order by sending quick charge to quick charge stake, is made quick Charging pile stops the output of charging wake-up signal, terminates so as to which entire car controller confirms to charge.
In Fig. 1, vehicle is when the vehicle-mounted charge interface of onboard charger during being charged has charging gun insertion, Onboard charger can also send a charging wake-up signal to entire car controller, and entire car controller receives the charging wake-up signal I.e. into high pressure power-up state (being attracted main negative relay and main positive relay), at this point, with charging relevant high voltage component such as The high pressure such as battery management system, onboard charger powers on (the positive relay that charges, the negative relay that charges are attracted), vehicle-mounted to fill Electric appliance and vehicle are communicated, and complete the control process to charge, and at the end of charging, battery management system is by onboard charger It sends to charge and cease and desist order, onboard charger is made to stop the output of quick charge wake-up signal, so as to which entire car controller confirmation is filled Electricity terminates.
In the prior art, it is different according to the general arrangement scheme of vehicle, it usually all can be by quick charge interface and vehicle-mounted charge Interface separates.But if driver have charge be intended to when, while be inserted into quick charge socket and vehicle-mounted charging plug, vehicle It will be unable to determine bottom and enter vehicle-mounted charge or quick charge, external input state will cause the malfunction of vehicle at this time Make, may further influence the security of vehicle.
The content of the invention
The present invention provides a kind of charge fault diagnostic method, is acted simultaneously in quick charge and vehicle-mounted charge with solving vehicle When, the uncertain problem of charged state, so as to improve the security of vehicle.
To achieve the above object, the present invention provides following technical solutions：
A kind of charge fault diagnostic method, including：
Start diagnosis；
Acquisition charging wake-up signal in real time；
It detects whether to receive vehicle-mounted charge demand message, the vehicle-mounted charge demand message includes：The ID of onboard charger Address, charge requirement electric current and/or fault message, the fault message of the onboard charger include：Temperature inside onboard charger High, charging current is spent to mismatch；
If so, detecting whether to receive quick charge demand message, the quick charge demand message includes：Quick charge ID addresses, charge requirement electric current and/or the fault message of stake, the fault message of the quick charge stake include：Quick charge stake Insulation fault information, quick charge stake internal temperature is excessively high, charging current mismatches；
If so, determine charging interface maloperation.
Preferably, after detecting whether to receive quick charge demand message, the method further includes：
If not, into vehicle-mounted charge pattern.
Preferably, after detecting whether to receive vehicle-mounted charge demand message, the method further includes：
If not, it detects whether to receive quick charge demand message；
If not, determine charging message dropping.
Preferably, after detecting whether to receive quick charge demand message, the method further includes：
If so, into fast charge mode.
Preferably, after definite charging interface maloperation, the method further includes：
Charging interface maloperation message is reported to whole-vehicle control network.
Preferably, after charging interface maloperation message to whole-vehicle control network is reported, the method further includes：
Into vehicle-mounted charge pattern.
Preferably, the fast charge mode is：
Be attracted the positive relay of fast charge simultaneously, fast charge bears relay, charge positive relay and the negative relay that charges, to pass through Quick charge stake provides charge power supply for battery pack.
Preferably, the vehicle-mounted charge pattern is：
Charge positive relay and the negative relay that charges are attracted simultaneously, to provide charging as battery pack by onboard charger Power supply.
Preferably, it is described to be specifically included into vehicle-mounted charge pattern：
Onboard charger receives the charging interface maloperation message, while is attracted the positive relay of charging and charges negative Relay, so that onboard charger provides charge power supply for battery pack.
The beneficial effects of the present invention are：
Charge fault diagnostic method provided by the invention after gathering charging wake-up signal, detects whether to receive quick charge Demand message and/or vehicle-mounted charge demand message, if quick charge demand message does not receive with vehicle-mounted charge demand message, Then determine charging message dropping；If quick charge demand message is received with vehicle-mounted charge demand message, it is determined that charging Slip of the tongue operates；By the present invention, solves vehicle when quick charge and vehicle-mounted charge act simultaneously, charged state is uncertain Problem, so as to improve the security of vehicle.
Description of the drawings
Fig. 1 is charging system structure diagram of the prior art.
Fig. 2 is the first flow chart of charge fault diagnostic method of the embodiment of the present invention.
Fig. 3 is second of flow chart of charge fault diagnostic method of the embodiment of the present invention.
Fig. 4 is the third flow chart of charge fault diagnostic method of the embodiment of the present invention.
Fig. 5 is the 4th kind of flow chart of charge fault diagnostic method of the embodiment of the present invention.
Specific embodiment
In order to which those skilled in the art is enable to be further understood that the feature and technology contents of the present invention, below in conjunction with the accompanying drawings It elaborates with embodiment to the embodiment of the present invention.
During for Vehicular charging, if being inserted into quick charge socket and vehicle-mounted charging plug simultaneously, vehicle can not judge into Enter vehicle-mounted charge or quick charge, an embodiment of the present invention provides a kind of charge fault diagnostic methods, quickly and easily solve The above problem.
Fig. 2 is the first flow chart of charge fault diagnostic method of the embodiment of the present invention, is comprised the following steps：
Step 101：Start diagnosis.
Step 102：Acquisition charging wake-up signal in real time.
It is sent it should be noted that charging wake-up signal can be quick charge stake by onboard charger, either Onboard charger needs what is independently sent according to vehicle-mounted charge.
Step 103：It detects whether to receive vehicle-mounted charge demand message；If so, perform step 104.
It should be noted that the charge requirement information containing vehicle-mounted charge in vehicle-mounted charge demand message, for example, vehicle-mounted fill ID addresses, charge requirement electric current and/or the fault message of electric appliance.Wherein, the fault message can include：In onboard charger Portion's temperature is excessively high, charging current mismatch (vehicle demand current and the current deviation that onboard charger exports are bigger, for example, Ten) deviation is more than percent failures such as.
Step 104：It detects whether to receive quick charge demand message；If so, perform step 105.
It should be noted that the charge requirement information containing quick charge in quick charge demand message, for example, quickly filling ID addresses, charge requirement electric current and/or the fault message of electric stake.Wherein, the fault message can include：Quick charge stake Insulation fault information, quick charge stake internal temperature are excessively high, (vehicle demand current and onboard charger are defeated for charging current mismatch Ten) current deviation gone out is bigger, for example, deviation is more than percent failures such as.
Step 105：It determines charging interface maloperation, performs step 106.
Step 106：Terminate diagnosis.
Charge fault diagnostic method provided in an embodiment of the present invention, after gathering charging wake-up signal, by detecting vehicle-mounted fill Electricity demanding message and quick charge demand message solve vehicle when quick charge and vehicle-mounted charge act simultaneously, charging shape The uncertain problem of state.
Fig. 3 is second of flow chart of charge fault diagnostic method of the embodiment of the present invention, is comprised the following steps：
Step 201：Start diagnosis.
Step 202：Acquisition charging wake-up signal in real time.
Step 203：It detects whether to receive vehicle-mounted charge demand message；If so, perform step 204；Otherwise, step is performed 208。
Step 204：It detects whether to receive quick charge demand message；If so, perform step 205；Otherwise, step is performed 207。
Step 205：It determines charging interface maloperation, performs step 206.
Step 206：Terminate diagnosis.
Step 207：Into vehicle-mounted charge pattern.
It should be noted that vehicle-mounted charge pattern is：Charge positive relay and the negative relay that charges are attracted simultaneously, with logical It crosses onboard charger and provides charge power supply for battery pack.
Step 208：It detects whether to receive quick charge demand message；If so, perform step 210；Otherwise, step is performed 209。
Step 209：It determines charging message dropping, performs step 206.
It should be noted that after determining charging message dropping, charging message dropping report can be reported by entire car controller Text so that all controllers on whole-vehicle control network can be quickly obtained the message, and is adopted to whole-vehicle control network Take effective measures.
Further, for example, after entire car controller sends charging message dropping message to whole-vehicle control network, full-vehicle control Remote intelligent terminal in network receives the charging message dropping message, can be sent and believed to user's intelligent terminal by server Breath, to prompt user's charging message dropping.
Step 210：Into fast charge mode.
It should be noted that fast charge mode is：It is attracted the positive relay of fast charge simultaneously, fast charge bears relay, charges just Relay and the negative relay that charges as battery pack by quick charge stake to provide charge power supply.
Charge fault diagnostic method provided in an embodiment of the present invention, after gathering charging wake-up signal, by detecting vehicle-mounted fill Electricity demanding message and quick charge demand message are determined into vehicle-mounted charge pattern or fast charge mode or definite message dropping Failure or definite charging interface maloperation, by the judgement of four kinds of situations, realize the charging side in the case of different situations Case also preferably solves vehicle when quick charge and vehicle-mounted charge act simultaneously, the uncertain problem of charged state.
Fig. 4 is the third flow chart of charge fault diagnostic method of the embodiment of the present invention, is comprised the following steps：
Step 301：Start diagnosis.
Step 302：Acquisition charging wake-up signal in real time.
Step 303：It detects whether to receive vehicle-mounted charge demand message；If so, perform step 304；Otherwise, step is performed 309。
Step 304：It detects whether to receive quick charge demand message；If so, perform step 305；Otherwise, step is performed 308。
Step 305：It determines charging interface maloperation, performs step 306.
Step 306：Charging interface maloperation message is reported to perform step 307 to whole-vehicle control network.
It should be noted that the whole-vehicle control network can be vehicle CAN communication network, grasped when reporting charging slip of the tongue After making message to whole-vehicle control network (can be vehicle CAN communication network), all controllers in CAN bus can be with The message of charging interface maloperation is obtained, to adopt an effective measure.
(can be whole Vehicle CAN communication network) after, the remote intelligent terminal on whole-vehicle control network receives the charging interface maloperation message, Ke Yitong It crosses server and sends information to the mobile intelligent terminal of client, effectively to prompt user's charging interface maloperation.
Further, the onboard charger in whole-vehicle control network receives the charging interface maloperation message, in order to have The protection battery pack of effect only responds vehicle-mounted charge.
Step 307：Terminate diagnosis.
Step 308：Into vehicle-mounted charge pattern.
It should be noted that vehicle-mounted charge pattern is：Charge positive relay and the negative relay that charges are attracted simultaneously, with logical It crosses onboard charger and provides charge power supply for battery pack.
Step 309：It detects whether to receive quick charge demand message；If so, perform step 311；Otherwise, step is performed 310。
Step 310：It determines charging message dropping, performs step 307.
Step 311：Into fast charge mode.
It should be noted that fast charge mode is：It is attracted the positive relay of fast charge simultaneously, fast charge bears relay, charges just Relay and the negative relay that charges as battery pack by quick charge stake to provide charge power supply.
Charge fault diagnostic method provided in an embodiment of the present invention, after gathering charging wake-up signal, by detecting vehicle-mounted fill Electricity demanding message and quick charge demand message are determined into vehicle-mounted charge pattern or fast charge mode or definite message dropping Failure or definite charging interface maloperation, by the judgement of four kinds of situations, realize the charging side in the case of different situations Case, and when detecting that vehicle quick charge acts simultaneously with vehicle-mounted charge, charging interface maloperation event is reported to vehicle network Barrier, so that vehicle can rapidly understand charge fault, takes necessary treatment measures.Also preferably solves vehicle quick When charging acts simultaneously with vehicle-mounted charge, the uncertain problem of charged state.
Fig. 5 is the 4th kind of flow chart of charge fault diagnostic method of the embodiment of the present invention, is comprised the following steps：
Step 401：Start diagnosis.
Step 402：Acquisition charging wake-up signal in real time.
Step 403：It detects whether to receive vehicle-mounted charge demand message；If so, perform step 404；Otherwise, step is performed 408。
Step 404：It detects whether to receive quick charge demand message；If so, perform step 405；Otherwise, step is performed 407。
Step 405：It determines charging interface maloperation, performs step 406.
Step 406：Charging interface maloperation message is reported to perform step 407 to whole-vehicle control network.
Step 407：Into vehicle-mounted charge pattern.
It should be noted that vehicle-mounted charge pattern is：Charge positive relay and the negative relay that charges are attracted simultaneously, with logical It crosses onboard charger and provides charge power supply for battery pack.
Further, the onboard charger in whole-vehicle control network receives the charging interface maloperation message, is attracted Charge positive relay and the negative relay that charges, so that onboard charger provides charge power supply for battery pack.
Step 408：It detects whether to receive quick charge demand message；If so, perform step 411；Otherwise, step is performed 409。
Step 409：It determines charging message dropping, performs step 410.
Step 410：Terminate diagnosis.
Step 411：Into fast charge mode.
It should be noted that fast charge mode is：It is attracted the positive relay of fast charge simultaneously, fast charge bears relay, charges just Relay and the negative relay that charges as battery pack by quick charge stake to provide charge power supply.
Charge fault diagnostic method provided in an embodiment of the present invention, after gathering charging wake-up signal, by detecting vehicle-mounted fill Electricity demanding message and quick charge demand message are determined into vehicle-mounted charge pattern or fast charge mode or definite message dropping Failure or definite charging interface maloperation, by the judgement of four kinds of situations, realize the charging side in the case of different situations Case, and when detecting that vehicle quick charge acts simultaneously with vehicle-mounted charge, charging interface maloperation event is reported to vehicle network Barrier, so that vehicle can rapidly understand charge fault, takes necessary treatment measures, and further in vehicle necessity is taken to arrange Shi Qian, it is contemplated that quick charge is to the influence in terms of battery life, preferably vehicle-mounted charge pattern, so as to solve vehicle quick When charging acts simultaneously with vehicle-mounted charge, the uncertain problem of charged state.
In conclusion charge fault diagnostic method provided in an embodiment of the present invention, after gathering charging wake-up signal, detection is It is no to receive quick charge demand message and/or vehicle-mounted charge demand message, if quick charge demand message is needed with vehicle-mounted charge Message is asked not receive, it is determined that charging message dropping；If quick charge demand message is received with vehicle-mounted charge demand message It arrives, it is determined that charging interface maloperation；If quick charge demand message is only received, into fast charge mode；If only Vehicle-mounted charge demand message is received, then into vehicle-mounted charge pattern；By the present invention, solve vehicle quick charge with it is vehicle-mounted When charging while acting, the uncertain problem of charged state, so as to improve the security of vehicle.
The embodiment of the present invention is described in detail above, specific embodiment used herein carries out the present invention It illustrates, the explanation of above example is only intended to help to understand the system and method for the present invention；Meanwhile for the one of this field As technical staff, thought according to the invention, there will be changes in specific embodiments and applications, to sum up institute It states, this specification content should not be construed as limiting the invention.

Claims (9)

1. a kind of charge fault diagnostic method, which is characterized in that including：
Start diagnosis；
Acquisition charging wake-up signal in real time；
It detects whether to receive vehicle-mounted charge demand message, the vehicle-mounted charge demand message includes：The ID addresses of onboard charger, Charge requirement electric current and/or fault message, the fault message of the onboard charger include：Onboard charger internal temperature mistake High, charging current mismatches；
If so, detecting whether to receive quick charge demand message, the quick charge demand message includes：Quick charge stake ID addresses, charge requirement electric current and/or fault message, the fault message of the quick charge stake include：Quick charge stake it is exhausted Edge fault message, quick charge stake internal temperature are excessively high, charging current mismatches；
If so, determine charging interface maloperation.
2. charge fault diagnostic method according to claim 1, which is characterized in that detecting whether that receiving quick charge needs After seeking message, the method further includes：
If not, into vehicle-mounted charge pattern.
3. charge fault diagnostic method according to claim 2, which is characterized in that detecting whether that receiving vehicle-mounted charge needs After seeking message, the method further includes：
If not, it detects whether to receive quick charge demand message；
If not, determine charging message dropping.
4. charge fault diagnostic method according to claim 3, which is characterized in that if not, detecting whether to receive fast After fast charge requirement message, the method further includes：
If so, into fast charge mode.
5. charge fault diagnostic method according to claim 4, which is characterized in that after definite charging interface maloperation, The method further includes：
Charging interface maloperation message is reported to whole-vehicle control network.
6. charge fault diagnostic method according to claim 5, which is characterized in that report charging interface maloperation message To whole-vehicle control network, the method further includes：
Into vehicle-mounted charge pattern.
7. according to claim 4 to 6 any one of them charge fault diagnostic method, which is characterized in that the quick charge mould Formula is：
Be attracted the positive relay of fast charge simultaneously, fast charge bears relay, charge positive relay and the negative relay that charges, with by quick Charging pile provides charge power supply for battery pack.
8. according to claim 2 to 6 any one of them charge fault diagnostic method, which is characterized in that the vehicle-mounted charge mould Formula is：
Charge positive relay and the negative relay that charges are attracted simultaneously, to provide charging electricity as battery pack by onboard charger Source.
9. charge fault diagnostic method according to claim 6, which is characterized in that report charging interface maloperation message To whole-vehicle control network, specifically included into vehicle-mounted charge pattern：
Onboard charger receives the charging interface maloperation message, while is attracted charge positive relay and the negative relay that charges Device, so that onboard charger provides charge power supply for battery pack.
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CN111398745A (en) * 2018-12-29 2020-07-10 长城汽车股份有限公司 Whole-vehicle high-voltage loop insulation detection method and device for new energy vehicle
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