CN102407778B - Real-time anti-interference complementation type vehicle-mounted leakage detection system - Google Patents
Real-time anti-interference complementation type vehicle-mounted leakage detection system Download PDFInfo
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- CN102407778B CN102407778B CN201010287995.6A CN201010287995A CN102407778B CN 102407778 B CN102407778 B CN 102407778B CN 201010287995 A CN201010287995 A CN 201010287995A CN 102407778 B CN102407778 B CN 102407778B
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- 238000009413 insulation Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
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- 230000003137 locomotive effect Effects 0.000 description 2
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- 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The invention discloses a real-time anti-interference complementation type vehicle-mounted leakage detection system. In the system, a detection end of a power supply leakage detection module is connected with the total positive end of a main line; a signal acquisition end of the power supply leakage detection module is connected with a power supply system; two modules are provided with an alarm signal output end respectively; both the alarm signal output end of a frame leakage detection module and the alarm signal output end of the power supply leakage detection module are connected with an input port of a battery management system; when detecting that insulation resistance is lower than a set value and leakage faults occur, one of the two modules can output an alarm signal to the battery management system, the battery management system automatically identifies the alarm signal and quickly determines a leakage position, one output end of the battery management system is connected with a vehicle controller, the battery management system detects detection results of the two modules of a vehicle and reports the detection results to the vehicle controller, and the other output end of the battery management system is connected with an alarm unit; and when the leakage faults occur, the battery management system controls the alarm unit to send the alarm signal out.
Description
Technical field
The present invention relates to the current leakage detection system of vehicle-carried auxiliary power power supply and vehicle-mounted engine installation in a kind of real-time anti-interference complementation type vehicle-mounted leakage detection system, particularly new-energy automobile, express locomotive and magnetic suspension train.
Background technology
Along with new-energy automobile and express locomotive, magnetic suspension train technology order become ripe, its application will progressively be promoted, so the safety of power-supply system is also proposed to more and more higher requirement.Existing technology is by the test side of detection of electrical leakage module being connected on the main line of power-supply system, detects main line the insulation resistance of vehicle frame is realized to detection of electrical leakage.This device has following drawback: one, in Vehicular power system, a certain cell occurs when abnormal causing this decline to the power brick assembly class of insulation, and under power brick assembly and vehicle frame insulation degree good situations, detection of electrical leakage module will can't detect leak current fault, be that detection of electrical leakage module is in failure state, along with time lapse, fault further expands like this, and fail battery enters vicious circle, finally may cause battery short circuit to burn, even initiation fire; Two, when detection of electrical leakage module detects main line vehicle frame is existed to leak current fault, existing control unit cannot be located trouble unit, is unfavorable for the quick eliminating of fault.In addition in prior art under auxiliary power unit trouble free prerequisite, when detecting unit detects leak current fault and exists, often Vehicular power system failure condition worsens, and can not accomplish early to find early to process the larger hidden danger of security presence; In prior art, without acousto-optic warning unit, alerting signal output is not directly perceived.
Summary of the invention
The invention provides a kind of real-time anti-interference complementation type vehicle-mounted leakage detection system, it is separate by power supply detection of electrical leakage and vehicle frame detection of electrical leakage, not only effectively prevent phase mutual interference between two checking systems, and can throw location electric leakage position fast, the safety that improves vehicle and vehicle power.
The present invention has adopted following technical scheme: a kind of real-time anti-interference complementation type vehicle-mounted leakage detection system, it comprises vehicle frame detection of electrical leakage module, the test side of vehicle frame detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of vehicle frame detection of electrical leakage module is connected with vehicle frame, it also comprises power supply detection of electrical leakage module, battery management system, vehicle control device and alarm unit, the test side of power supply detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of power supply detection of electrical leakage module is connected with power-supply system, vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are respectively equipped with alarm signal output ends, the alarm signal output ends of the alarm signal output ends of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module is all connected with the input port of battery management system, can be to battery management system output alarm signal when vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module detect insulation resistance and occur leak current fault lower than setting value, battery management system is identified alerting signal automatically, locate fast electric leakage position, one mouth of battery management system is connected with vehicle control device, battery management system will detect the testing result of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module and report vehicle control device, another mouth of battery management system is connected with alarm unit, when there is leak current fault, battery management system is controlled alarm unit and is sent alerting signal.
Described vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are set to sensor for detecting electric leakage.The alarm signal output ends of described vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module comprises one-level warning mouth and secondary warning mouth, the one-level warning mouth of vehicle frame detection of electrical leakage module is all connected with an input port of battery management system with secondary warning mouth, and the one-level warning mouth of power supply detection of electrical leakage module is all connected with another input port of battery management system with secondary warning mouth.Described alarm unit is acoustic-optic alarm.Between described battery management system and vehicle control device, by CAN communication protocol, be connected.The present invention has following beneficial effect: the present invention is provided with vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module, like this can the detection of electrical leakage of the detection of electrical leakage of vehicle-mounted dynamic power system and vehicle assisted dynamic device is separate, complement each other, the detection of electrical leakage of two cover systems is not altogether, not only effectively prevent disturbing mutually between two cover systems in detection of electrical leakage process, and can locate fast electric leakage position, can find ahead of time potential safety hazard, when guaranteeing vehicle safety, effectively protected the safety of Vehicular power system, detecting unit adopts modular design in addition, can increase and decrease as required detecting unit, meet the different needs.Battery management system of the present invention has communication function, between battery management system and vehicle control device, by CAN communication protocol, is connected, so just can real-time report testing result.On battery management system of the present invention, be connected with alarm unit, alarm unit can send sound and light alarm when electric leakage occurs, alarm lamp flicker, and buzzer phone sends caution sound, can make like this alerting signal output more directly perceived, improves safety.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention
The specific embodiment
In Fig. 1, the invention provides a kind of real-time anti-interference complementation type vehicle-mounted leakage detection system, it comprises vehicle frame detection of electrical leakage module, power supply detection of electrical leakage module, battery management system, vehicle control device and alarm unit, vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are set to sensor for detecting electric leakage, alarm unit is acoustic-optic alarm, acoustic-optic alarm comprises alarm lamp and buzzer phone, the test side of vehicle frame detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of vehicle frame detection of electrical leakage module is connected with vehicle frame, the test side of power supply detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of power supply detection of electrical leakage module is connected with power-supply system, vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are respectively equipped with alarm signal output ends, the alarm signal output ends of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module comprises one-level warning mouth and secondary warning mouth, the one-level warning mouth of vehicle frame detection of electrical leakage module is all connected with an input port of battery management system with secondary warning mouth, the one-level warning mouth of power supply detection of electrical leakage module is all connected with another input port of battery management system with secondary warning mouth, the alarm signal output ends of the alarm signal output ends of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module is all connected with the input port of battery management system, can be to battery management system output alarm signal when vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module detect insulation resistance and occur leak current fault lower than setting value, battery management system is identified alerting signal automatically, locate fast electric leakage position, one mouth of battery management system is connected with vehicle control device, between battery management system and vehicle control device, by CAN communication protocol, be connected, battery management system will detect the testing result of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module and report vehicle control device, another mouth of battery management system is connected with alarm unit, when there is leak current fault, battery management system is controlled alarm unit and is sent alerting signal.To vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module, input respectively respectively the direct supply of 24V, when occurring without leak current fault, vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module output low level, when the insulation resistance detecting when vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module is less than 88 kilo-ohms, vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module are sent one-level and are reported to the police, one-level warning mouth output 12V high level, secondary warning mouth output low level; When the insulation resistance detecting when vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module is less than 18 kilo-ohms, vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module are sent secondary and are reported to the police, and one-level warning mouth and secondary warning mouth are all exported 12V high level.
Claims (5)
1. a real-time anti-interference complementation type vehicle-mounted leakage detection system, it comprises vehicle frame detection of electrical leakage module, the test side of vehicle frame detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of vehicle frame detection of electrical leakage module is connected with vehicle frame, it is characterized in that it also comprises power supply detection of electrical leakage module, battery management system, vehicle control device and alarm unit, the test side of power supply detection of electrical leakage module is connected with total anode of main line, the acquisition of signal end of power supply detection of electrical leakage module is connected with power-supply system, vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are respectively equipped with alarm signal output ends, the alarm signal output ends of the alarm signal output ends of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module is all connected with the input port of battery management system, can be to battery management system output alarm signal when vehicle frame detection of electrical leakage module or power supply detection of electrical leakage module detect insulation resistance and occur leak current fault lower than setting value, battery management system is identified alerting signal automatically, locate fast electric leakage position, one mouth of battery management system is connected with vehicle control device, battery management system will detect the testing result of vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module and report vehicle control device, another mouth of battery management system is connected with alarm unit, when there is leak current fault, battery management system is controlled alarm unit and is sent alerting signal.
2. real-time anti-interference complementation type vehicle-mounted leakage detection system according to claim 1, is characterized in that described vehicle frame detection of electrical leakage module and power supply detection of electrical leakage module are set to sensor for detecting electric leakage.
3. real-time anti-interference complementation type vehicle-mounted leakage detection system according to claim 1, it is characterized in that described vehicle frame detection of electrical leakage module and the alarm signal output ends of power supply detection of electrical leakage module comprise one-level warning mouth and secondary warning mouth, the one-level warning mouth of vehicle frame detection of electrical leakage module is all connected with an input port of battery management system with secondary warning mouth, and the one-level warning mouth of power supply detection of electrical leakage module is all connected with another input port of battery management system with secondary warning mouth.
4. real-time anti-interference complementation type vehicle-mounted leakage detection system according to claim 1, is characterized in that described alarm unit is acoustic-optic alarm.
5. real-time anti-interference complementation type vehicle-mounted leakage detection system according to claim 1, is characterized in that by CAN communication protocol, being connected between described battery management system and vehicle control device.
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| CN201010287995.6A CN102407778B (en) | 2010-09-21 | 2010-09-21 | Real-time anti-interference complementation type vehicle-mounted leakage detection system |
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| CN102407778B true CN102407778B (en) | 2014-01-15 |
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| KR101371854B1 (en) * | 2012-08-01 | 2014-03-24 | 기아자동차주식회사 | Electric leakage diagnosis apparatus for vehicle using insulation resistance sensor, and control method thereof |
| CN106855589B (en) * | 2015-12-08 | 2020-07-31 | 台达电子工业股份有限公司 | Power distributor and its fault detection method |
| CN108337114A (en) * | 2018-01-16 | 2018-07-27 | 中车青岛四方机车车辆股份有限公司 | Network state processing equipment, method and train |
| CN108054457B (en) * | 2018-01-17 | 2023-08-15 | 华霆（合肥）动力技术有限公司 | Battery safety monitoring device and method |
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| CN1573343A (en) * | 2003-05-29 | 2005-02-02 | 丰田自动车株式会社 | Diagnostic system and method for electric leak detecting device |
| CN2731463Y (en) * | 2004-10-27 | 2005-10-05 | 北京鸿都伟业科技发展有限公司 | Intelligent electricity leakage alarm for train |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06113402A (en) * | 1992-09-29 | 1994-04-22 | Toyota Autom Loom Works Ltd | Frame leakage detector |
| JP4830376B2 (en) * | 2005-07-11 | 2011-12-07 | 日産自動車株式会社 | Ground fault detection device for vehicles |
| US7459914B2 (en) * | 2006-10-31 | 2008-12-02 | Caterpillar Inc. | Systems and methods for electrical leakage detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573343A (en) * | 2003-05-29 | 2005-02-02 | 丰田自动车株式会社 | Diagnostic system and method for electric leak detecting device |
| CN2731463Y (en) * | 2004-10-27 | 2005-10-05 | 北京鸿都伟业科技发展有限公司 | Intelligent electricity leakage alarm for train |
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