CN107607838A - The quick Check System of electric motor coach insulation fault and its investigation method - Google Patents

The quick Check System of electric motor coach insulation fault and its investigation method Download PDF

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Publication number
CN107607838A
CN107607838A CN201710769667.1A CN201710769667A CN107607838A CN 107607838 A CN107607838 A CN 107607838A CN 201710769667 A CN201710769667 A CN 201710769667A CN 107607838 A CN107607838 A CN 107607838A
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CN
China
Prior art keywords
positive
insulation fault
relay
investigation
power distribution
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Pending
Application number
CN201710769667.1A
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Chinese (zh)
Inventor
林剑健
林必生
谢延兴
王柏卫
郑加金
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Xiamen Golden Dragon Bus Co Ltd
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Xiamen Golden Dragon Bus Co Ltd
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Priority to CN201710769667.1A priority Critical patent/CN107607838A/en
Publication of CN107607838A publication Critical patent/CN107607838A/en
Pending legal-status Critical Current

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Abstract

The invention provides a kind of quick Check System of electric motor coach insulation fault to include electrokinetic cell, insulated monitoring module, high voltage power distribution module, entire car controller, the connection corresponding with the both positive and negative polarity of the electrokinetic cell, and relay is respectively equipped with both positive and negative polarity bus respectively of the both positive and negative polarity bus of high voltage power distribution module;If separating high tension loop positive pole in main line in the positive bus of the high voltage power distribution module, if separating high tension loop negative pole in main line on the negative pole center line of the high voltage power distribution module, high tension loop positive pole corresponds the high tension loop negative pole described in per road;Relay is respectively equipped with described in per road on high tension loop positive pole, and relay is respectively equipped with high tension loop negative pole described in per road.Electrokinetic cell both positive and negative polarity, high voltage power distribution module both positive and negative polarity, each road high tension loop both positive and negative polarity can be detected respectively whether there is insulation fault, can accurately investigate be that high tension loop positive pole or negative pole insulation fault be present, greatly reduce the workload manually investigated.

Description

The quick Check System of electric motor coach insulation fault and its investigation method
Technical field
The present invention relates to electronic information technical field, is quickly investigated in particular to a kind of electric motor coach insulation fault System and its investigation method.
Background technology
At present, electric motor coach needs to meet corresponding security performance requirement, and all electric motor coaches all need possess real-time insulation Detection function prevents passengers inside the car, it is necessary to install the insulaion resistance that insulation detection device detects vehicle high tension loop in real time High pressure electric shock accidents, it is ensured that personnel and vehicle safety.
Common detection is, when detecting that insulation fault (insulation fault of highest level, is insulaion resistance by Standard Less than or equal to 100 ohm/volt) when, insulation monitor can report the insulation fault to pass through to entire car controller, entire car controller Control disconnects the both positive and negative polarity high-voltage relay of high tension loop, while can show insulation fault in instrument.But this detection method When in face of insulation fault, because not knowing which high voltage component or loop insulation fault, vehicle service technicians are needed to whole All parts of car high tension loop are investigated one by one, each high-tension electricity part are pulled out respectively by power-off, by the insulation of specialty Detecting instrument measures insulation resistance value.Because the high voltage component of electric motor coach is various and the plug of high-voltage electrical apparatus connector is difficult, adopt With this method very complicated manually investigated, efficiency is low, and high-voltage connector and Manual maintenance switch are typically all to have Number requirement is plugged, so dismounting also reduces the reliability of its connection and work.
The content of the invention
The invention provides a kind of quick Check System of electric motor coach insulation fault and its investigation method, it is intended to improves existing Insulation fault investigation method specifically any bar high tension loop failure can not be detected, cause manually further investigate it is cumbersome and arrange Look into the problem of efficiency is low, reliability is low.
What the present invention was realized in:
The quick Check System of electric motor coach insulation fault, the Check System include:
Electrokinetic cell, electric motor coach have some high tension loops, and it is some high tension loops that the electrokinetic cell, which is used for, High-tension electricity is provided;
Insulated monitoring module, connected with the electrokinetic cell, for detecting whether Check System insulation fault occurs;
High voltage power distribution module, the connection corresponding with the both positive and negative polarity of the electrokinetic cell, and both positive and negative polarity respectively of its both positive and negative polarity bus Relay is respectively equipped with bus;It is described if separating high tension loop positive pole in main line in the positive bus of the high voltage power distribution module If separating high tension loop negative pole in main line on the negative pole center line of high voltage power distribution module, high tension loop positive pole corresponds institute described in per road State high tension loop negative pole;Relay is respectively equipped with described in per road on high tension loop positive pole, and described in per road on high tension loop negative pole It is respectively equipped with relay;
Entire car controller, it is connected with the high voltage power distribution module, for controlling the work of the relay.
Further, in preferred embodiments of the present invention, the Check System also includes CAN, the insulation prison Control module, the entire car controller are connected with the CAN respectively, and the two is exported by the CAN detect respectively As a result.
Further, in preferred embodiments of the present invention, in addition to the insulation fault being connected with the entire car controller Button is investigated, for starting the instruction of investigation to entire car controller input.
Further, in preferred embodiments of the present invention, in addition to the display instrument being connected with the CAN, institute Display instrument is stated to receive and show the insulated monitoring module and the testing result of entire car controller output.
Electric motor coach insulation fault quickly investigates method, and using above-mentioned Check System, the investigation method includes following Step:
S1, under car detection state, start insulated monitoring module and be operated;
S2, relay all in high voltage power distribution module is disconnected, detecting the both positive and negative polarity of electrokinetic cell in vehicle respectively is It is no to have insulation fault;Investigation is sent if it insulation fault be present result and to terminate to investigate, it is on the contrary then into next step investigation;
S3, if step S2 is not detected by insulation fault, by the high voltage power distribution module be located in both positive and negative polarity bus after Electrical equipment closes, and remaining relay disconnects, and whether the both positive and negative polarity for detecting high voltage power distribution module respectively has insulation fault;If exist exhausted Reason barrier, which then sends investigation, result and to be terminated to investigate, it is on the contrary then into next step investigation;
S4, if step S3 is not detected by insulation fault, by the high voltage power distribution module be located in both positive and negative polarity bus after Electrical equipment is closed, and the relay to be detected corresponding to certain high tension loop on both positive and negative polarity is closed, and remaining relay disconnects, detection The high tension loop whether there is insulation fault;Investigation is sent if it insulation fault be present result and to terminate to investigate, it is on the contrary then enter one Step investigation;
S5, if step S4 is to detect insulation fault, circulation step S4 investigation step, other high tension loops are investigated, Until having investigated all high tension loops.
Further, in preferred embodiments of the present invention, when terminating investigation, will need to own in the high voltage power distribution module Relay disconnects.
Further, in preferred embodiments of the present invention, the high tension loop includes motor loop, the driving Electric motor loop includes preliminary filling resistance, and the preliminary filling resistance is in series with relay, and after being connected with the relay with motor Relay on the positive pole of loop is in parallel.
The beneficial effects of the invention are as follows:The Check System that the present invention is obtained by above-mentioned design, by both positive and negative polarity bus Upper setting relay, and relay is respectively equipped with each high tension loop both positive and negative polarity, and pass through vehicle control unit controls relay Closure and disconnection.Electrokinetic cell both positive and negative polarity, high voltage power distribution module both positive and negative polarity, each road high tension loop both positive and negative polarity can be detected respectively With the presence or absence of insulation fault, can accurately investigate be that high tension loop positive pole or negative pole insulation fault be present, significantly Reduce the workload manually investigated.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of embodiment of the present invention Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the embodiment of the present invention, the module diagram of Check System;
Fig. 2 is the embodiment of the present invention, investigates the schematic flow sheet of method.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention The scope of protection.Therefore, below the detailed description of the embodiments of the present invention to providing in the accompanying drawings be not intended to limit will The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belong to this Invent the scope of protection.
Embodiment 1
Shown in reference picture 1, the quick Check System of electric motor coach insulation fault includes electrokinetic cell, insulated monitoring module, height Power entry module, entire car controller are pressed, electric motor coach has some high tension loops, and it is some high tension loops that electrokinetic cell, which is used for, High-tension electricity is provided.Insulated monitoring module is connected with electrokinetic cell, for detecting whether Check System insulation fault occurs.Vehicle control Device processed is connected with high voltage power distribution module, for controlling the work of high voltage power distribution module.By setting insulated monitoring module, Neng Goujian It whether there is insulation fault in survey time road.
Preferably, high voltage power distribution module include multiple relay K1, K2 ..., Kn, the multiple relays of vehicle control unit controls Work, be easy to investigate insulation fault.The both positive and negative polarity bus of the high voltage power distribution module both positive and negative polarity pair with the electrokinetic cell respectively It should connect, and relay K1, K2 are respectively equipped with both positive and negative polarity bus.
Further, if separating main line high tension loop positive pole, high voltage power distribution module in the positive bus of high voltage power distribution module If negative pole center line on separate main line high tension loop negative pole, high tension loop negative pole is corresponded per road high tension loop positive pole.Per road Relay is respectively equipped with high tension loop positive pole, and relay is respectively equipped with every road high tension loop negative pole.
In specific embodiment, high voltage power distribution module include relay K1, K2 ..., K17, including motor loop, electricity turn To high tension loops such as power-assisted loop, electric air compressor machine loops.High tension loop negative pole is corresponded per road high tension loop positive pole, it is high per road Push back be respectively equipped with the positive pole on road relay K3 ..., K10, be respectively equipped with relay on the negative pole of corresponding high tension loop K11、…、K17.It is easy to detect each road high tension loop both positive and negative polarity respectively and whether there is insulation fault.
Wherein, motor loop includes preliminary filling resistance, and preliminary filling resistance is in series with relay, and after being connected with relay with Relay on the positive pole of motor loop is in parallel.
By setting relay in both positive and negative polarity bus, and relay is respectively equipped with each high tension loop both positive and negative polarity, and Closure and disconnection by vehicle control unit controls relay.Electrokinetic cell both positive and negative polarity, high voltage power distribution module can be detected respectively Both positive and negative polarity, each road high tension loop both positive and negative polarity whether there is insulation fault, can accurately investigate be that high tension loop positive pole Or negative pole has insulation fault, the workload manually investigated is greatly reduced.
Check System also include CAN, insulation fault investigation button, display instrument, insulation fault investigate button with it is whole Vehicle controller connects, and for starting the instruction of investigation to entire car controller input, investigating button by insulation fault can be convenient Startup and operation investigation work.
Insulated monitoring module, entire car controller are connected with CAN respectively, and the two is exported by CAN examine respectively Survey result.Display instrument is connected with CAN, and display instrument receives and shows insulated monitoring module and entire car controller output Testing result.Testing result is sent to display instrument by CAN and shown so that insulation fault investigation result can be directly perceived It has been shown that, is easy to artificial treatment insulation fault.
Embodiment 2
Shown in reference picture 2, using the Check System in embodiment 1, the investigation method comprises the following steps:
S1, under car detection state, start insulated monitoring module and be operated.
Car detection state can be dead ship condition, and car key is beaten in ON shelves.If insulation fault investigation need to be carried out, Insulation fault investigation button is pressed, starts entire car controller and is operated, and starts the work of insulated monitoring module.Otherwise terminate.
S2, relay all in high voltage power distribution module is disconnected, detecting the both positive and negative polarity of electrokinetic cell in vehicle respectively is It is no to have insulation fault;Investigation is sent if it insulation fault be present result and to terminate to investigate, it is on the contrary then into next step investigation.It is logical Cross step S2 investigation electrokinetic cell both positive and negative polarities and whether there is insulation fault.
S3, if step S2 is not detected by insulation fault, by the high voltage power distribution module be located in both positive and negative polarity bus after Electrical equipment closes, and remaining relay disconnects, and whether the both positive and negative polarity for detecting high voltage power distribution module respectively has insulation fault;If exist exhausted Reason barrier, which then sends investigation, result and to be terminated to investigate, it is on the contrary then into next step investigation.High voltage power distribution is investigated by step S3 The both positive and negative polarity of module whether there is insulation fault.
S4, if step S3 is not detected by insulation fault, by the high voltage power distribution module be located in both positive and negative polarity bus after Electrical equipment is closed, and the relay to be detected corresponding to certain high tension loop on both positive and negative polarity is closed, and remaining relay disconnects, detection The high tension loop whether there is insulation fault;Investigation is sent if it insulation fault be present result and to terminate to investigate, it is on the contrary then enter one Step investigation.Whether the both positive and negative polarity that the high tension loops such as motor loop can be investigated out there is insulation fault.
S5, if step S4 is to detect insulation fault, circulation step S4 investigation step, other high tension loops are investigated, Until having investigated all high tension loops.
When terminating investigation, all relays in the high voltage power distribution module need to be disconnected, ensure that investigation terminates rear vehicle Safety.Closure and disconnection by vehicle control unit controls high voltage power distribution module repeat circuit, investigate each road high tension loop one by one Both positive and negative polarity whether there is insulation fault.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (7)

1. the quick Check System of electric motor coach insulation fault, it is characterised in that the Check System includes:
Electrokinetic cell, electric motor coach have some high tension loops, and the electrokinetic cell is used to provide for some high tension loops High-tension electricity;
Insulated monitoring module, connected with the electrokinetic cell, for detecting whether Check System insulation fault occurs;
High voltage power distribution module, the connection corresponding with the both positive and negative polarity of the electrokinetic cell, and both positive and negative polarity bus respectively of its both positive and negative polarity bus On be respectively equipped with relay;If main line high tension loop positive pole, the high pressure are separated in the positive bus of the high voltage power distribution module If separating high tension loop negative pole in main line on the negative pole center line of Power entry module, high tension loop positive pole corresponds the height described in per road Push back road negative pole;Relay is respectively equipped with described in per road on high tension loop positive pole, and is distinguished described in per road on high tension loop negative pole Provided with relay;
Entire car controller, it is connected with the high voltage power distribution module, for controlling the work of the relay.
2. the quick Check System of electric motor coach insulation fault according to claim 1, it is characterised in that the Check System Also include CAN, the insulated monitoring module, the entire car controller are connected with the CAN respectively, and the two is distinguished Testing result is exported by the CAN.
3. the quick Check System of electric motor coach insulation fault according to claim 1, it is characterised in that also include with it is described The insulation fault investigation button of entire car controller connection, for starting the instruction of investigation to entire car controller input.
4. the quick Check System of electric motor coach insulation fault according to claim 2, it is characterised in that also include with it is described The display instrument of CAN connection, the display instrument receive and show the insulated monitoring module and the entire car controller The testing result of output.
5. electric motor coach insulation fault quickly investigates method, it is characterised in that in usage right requirement 1 to 4 described in any one Check System, the investigation method comprises the following steps:
S1, under car detection state, start insulated monitoring module and be operated;
S2, relay all in high voltage power distribution module is disconnected, whether the both positive and negative polarity for detecting electrokinetic cell in vehicle respectively has Insulation fault;Investigation is sent if it insulation fault be present result and to terminate to investigate, it is on the contrary then into next step investigation;
S3, if step S2 is not detected by insulation fault, the relay that the high voltage power distribution module is located in both positive and negative polarity bus Closure, and remaining relay disconnects, whether the both positive and negative polarity for detecting high voltage power distribution module respectively has insulation fault;If insulation event be present Barrier, which then sends investigation, result and to be terminated to investigate, it is on the contrary then into next step investigation;
S4, if step S3 is not detected by insulation fault, the relay that the high voltage power distribution module is located in both positive and negative polarity bus Closure, the relay to be detected corresponding to certain high tension loop on both positive and negative polarity is closed, and remaining relay disconnects, and detects the height Push back road and whether there is insulation fault;Investigation result is sent if it insulation fault be present and terminates to investigate, on the contrary then further row Look into;
S5, if step S4 is to detect insulation fault, circulation step S4 investigation step, other high tension loops are investigated, until All high tension loops are investigated.
6. electric motor coach insulation fault according to claim 5 quickly investigates method, it is characterised in that when terminating investigation, All relays in the high voltage power distribution module need to be disconnected.
7. electric motor coach insulation fault according to claim 5 quickly investigates method, it is characterised in that the high tension loop Including motor loop, the motor loop includes preliminary filling resistance, and the preliminary filling resistance is in series with relay, and with institute State in parallel with the relay on the positive pole of motor loop after relay is connected.
CN201710769667.1A 2017-08-31 2017-08-31 The quick Check System of electric motor coach insulation fault and its investigation method Pending CN107607838A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108519525A (en) * 2018-03-15 2018-09-11 北京智行鸿远汽车有限公司 A kind of processing method of pure electric vehicle investigation Insulation Problems
CN108638867A (en) * 2018-06-26 2018-10-12 南京恒天领锐汽车有限公司 A kind of novel energy-saving electric automobile high-voltage power distribution equipment
CN108776286A (en) * 2018-05-30 2018-11-09 广东思诺伟智能技术有限公司 A kind of method and circuit of Insulation monitoring

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CN105717404A (en) * 2014-12-03 2016-06-29 广州汽车集团股份有限公司 Method and device for detecting insulation fault of power battery system
CN106646170A (en) * 2017-01-13 2017-05-10 厦门金龙旅行车有限公司 Novel pure electric bus insulation state monitoring system and control method thereof

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Publication number Priority date Publication date Assignee Title
JP2015033180A (en) * 2013-07-31 2015-02-16 株式会社東芝 Vehicle controller and vehicle control method
CN203902307U (en) * 2014-05-23 2014-10-29 北汽福田汽车股份有限公司 Electromobile high-voltage-insulating safety protection system and electromobile with same
CN105717404A (en) * 2014-12-03 2016-06-29 广州汽车集团股份有限公司 Method and device for detecting insulation fault of power battery system
CN105150856A (en) * 2015-09-11 2015-12-16 安徽江淮汽车股份有限公司 Fault diagnosis device and method of high-voltage system
CN106646170A (en) * 2017-01-13 2017-05-10 厦门金龙旅行车有限公司 Novel pure electric bus insulation state monitoring system and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108519525A (en) * 2018-03-15 2018-09-11 北京智行鸿远汽车有限公司 A kind of processing method of pure electric vehicle investigation Insulation Problems
CN108776286A (en) * 2018-05-30 2018-11-09 广东思诺伟智能技术有限公司 A kind of method and circuit of Insulation monitoring
CN108638867A (en) * 2018-06-26 2018-10-12 南京恒天领锐汽车有限公司 A kind of novel energy-saving electric automobile high-voltage power distribution equipment

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