CN103552519A - Integrated circuit protection method of mining electric wheel dump truck - Google Patents
Integrated circuit protection method of mining electric wheel dump truck Download PDFInfo
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- CN103552519A CN103552519A CN201310527637.1A CN201310527637A CN103552519A CN 103552519 A CN103552519 A CN 103552519A CN 201310527637 A CN201310527637 A CN 201310527637A CN 103552519 A CN103552519 A CN 103552519A
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Abstract
The invention discloses an integrated circuit protection method of a mining electric wheel dump truck. The mining electric wheel dump truck is protected in real time in three layers namely a system level, a hydraulic device level and a converter device level; a failure base is called to classify failures through a vehicle control unit; the failures are graded according to different failure types, the severity of the failures is judged, corresponding protection strategies are taken for handling the failures, and corresponding alarming and corresponding motion are carried out for the failures. The integrated circuit protection method has the advantages of simple principle, high reliability, better performance, quickness and convenience in maintenance and detection, and the like.
Description
Technical field
The present invention is mainly concerned with large-tonnage mine electric wheel dump field, refers in particular to a kind of synthetic circuit guard method that is applicable to large-tonnage mine electric wheel dump.
Background technology
The energy of global range sternness and environmental protection problem are that world is paid close attention to the most.In order to tackle the energy prices of swift and violent rise, reduce production costs, simultaneously in order to reduce disposal of pollutants, the whole world all becomes take by take the vehicle remoulding that fuel oil is power the vehicle that electric energy is power in truck actuation techniques.China for example, heavy duty truck still be take fuel oil as main at present, the heavy duty truck that colliery is used especially in the open, not only cost is high, and seriously polluted.Transformation is attempted in many collieries or repacking heavy duty truck becomes operation power pattern, and pantograph is installed at truck top, and continuous contact aerial wire laying utilizes external source to continue energy supply and travels.But which not only cost is high, and there are very large limitation, more difficult adaptation mining area operating mode during vehicle operating.
Along with the scale of domestic and international large outdoors colliery constantly expands, the effect of mine electric wheel dump highlights, and the in the situation that of same Isoquant, large-tonnage mine electric wheel dump can reduce uses car quantity, increase work efficiency and safety, obtain higher economic benefit.At present, large-scale mine electric power wheel self-discharging vehicle is being born the Mining Transport task of 40% coal, 90% iron ore in the world, year yield be greater than the open cast mine of 1,000 ten thousand tons with in be taken as first-selected transportation means.
But large-tonnage mine electric wheel dump is the weak link of China always, and the protection system of mine electric wheel dump is the critical component of whole dumping car.At present, fault rate, the service expenditure of the mine electric wheel dump of domestic operation are higher, have greatly affected the operation of vehicle, and maintenance detects can not be convenient and swift, and its protection system is urgently further improved.
The technical disadvantages of existing mine electric wheel dump guard method mainly contains:
1, fault rate, service expenditure are higher, affect the operation of vehicle, and maintenance detects can not be convenient and swift, and protection system is urgently further improved.
2, the layering of belief system and subsystem thereof is too numerous and diverse, is unfavorable for the timely and effective processing of fault.
3, for failure sorted, there is no corresponding treatment measures and the specific embodiment thereof.
4,, for all kinds of faults, belief system and failure sorted strategy do not have the management of actv. combination and systematic.
5, lifting is not pulled out to cylinder, engine starting wearing and tearing, main circuit grounding, hydraulic fault, electrical accident etc. and implement synthetic circuit guard method.
Summary of the invention
The technical problem to be solved in the present invention is just: the technical matters existing for prior art, the invention provides that a kind of principle is simple, good reliability, performance are more excellent, maintenance detects the synthetic circuit guard method of mine electric wheel dump more fast and easily.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of synthetic circuit guard method of mine electric wheel dump; be divided into system-level, hydraulic efficiency gear level and 3 levels of converter plant level mine electric wheel dump is carried out to real-time guard; by entire car controller, call fault database fault is carried out to somatotype; according to different faults type, fault is carried out to classification, failure judgement weight; and take to protect accordingly strategy to process, fault is reported to the police accordingly and moved.
As a further improvement on the present invention:
Described system-level be by entire car controller ACU real-time guard, described hydraulic efficiency gear level is to shield real-time guard by fault alarm, described converter plant level is by driving control unit DCU real-time guard.
Described hydraulic efficiency gear level is utilized pressure switch, by fault alarm, shield hydraulic fault shown in real time, fault alarm screen by CAN bus by hydraulic system fault Real-time Feedback to entire car controller ACU.
Described converter plant level is to utilize fault contact switch; by driving control unit DCU, power circuit is carried out to real-time guard; control unit DCU by CAN bus by power circuit fault Real-time Feedback to entire car controller ACU; entire car controller ACU is set up fault database to all types of faults, and according to different fault levels, fault is carried out to cascade protection.
When system breaks down; describedly system-levelly by fault database, fault is carried out somatotype and called; then according to different fault types, fault is carried out to classification; and carrying out corresponding conservation treatment, entire car controller automatically carries out limiting operation or stops vehicle driving mine electric wheel dump according to fault seriousness.
When system breaks down, first entire car controller ACU judges whether this fault is major failure; When being major failure, entire car controller ACU sends parking brake signal, and blocks current transformer trigging pulse by driving control unit DCU; If not major failure, entire car controller ACU continues to judge whether this fault is medium fault; When being medium fault, system is blocked current transformer trigging pulse by driving control unit DCU, and failure message is sent into fault display device; If not medium fault, system judges that this fault is light fault, and system is by driving control unit DCU bypass trouble unit, and merit operation falls in system, failure message is sent into fault display device simultaneously.
Compared with prior art, the invention has the advantages that:
1, method of the present invention can be shielded hydraulic system fault signal is reported to the police by fault alarm, and by entire car controller, fault is carried out to classification processing.Method of the present invention can be carried out real-time actv. acquisition and processing to fault by layered protection.Method of the present invention can be carried out somatotype to fault by entire car controller, according to different fault types, fault is carried out to classification, failure judgement weight, and takes to protect accordingly strategy to process, and fault is reported to the police accordingly and moved.
2, method of the present invention can avoid occurring that existing mine electric wheel dump fault rate is higher, the difficult expense of break down maintenance is high, belief system is numerous and diverse, trouble free classification relative strategy, without the defect of the aspects such as systematic fault management.
3, method of the present invention further can effectively prevent that mine electric wheel dump from occurring that cylinder phenomenon is pulled out in lifting, effectively movable parts during pre-lubrication engine starting to be to prevent engine starting wearing and tearing, can detect in real time main circuit grounding fault, and according to fault seriousness, fault is carried out to classification processing.
Accompanying drawing explanation
Fig. 1 is that the inventive method is carried out the principle schematic of layered protection in concrete application example.
Fig. 2 is the schematic flow sheet that the inventive method is carried out layering, cascade protection in concrete application example.
Fig. 3 is the tactful schematic diagram that the inventive method is carried out layering, cascade protection in concrete application example.
The specific embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
The synthetic circuit guard method of mine electric wheel dump of the present invention, is divided into system-level, hydraulic efficiency gear level and 3 levels of converter plant level mine electric wheel dump is carried out to real-time guard.The method is called fault database by entire car controller fault is carried out to somatotype, according to different faults type, fault is carried out to classification, failure judgement weight, and takes to protect accordingly strategy to process, and fault is reported to the police accordingly and moved.System-level protection comprises: monitoring hydraulic efficiency gear fault; Monitoring converter device fault; Monitoring engine fault; Monitoring automatic lubricating system fault; Level monitoring, water temperature fault; Monitoring oil level, oil temperature fault.The protection of hydraulic efficiency gear level comprises: the low fault of lift-off pressures; The low fault of brake energy storage device pressure; Air filter, liquid filter plugging fault; Electricity failure of removal.The protection of converter plant level comprises: earth fault; IGBT element fault; Electrical generator overvoltage, over current fault; Braking overcurrent, excessive current flow in motor fault; Electrical generator, motor over-temperature fault; Direct current overvoltage fault.
As shown in FIG. 1 to 3, according to different object of protections, that method of the present invention is divided into is system-level, hydraulic efficiency gear level and 3 levels of converter plant level are protected.System-level by entire car controller ACU real-time guard, hydraulic efficiency gear level is shielded real-time guard by fault alarm, and converter plant level is by driving control unit DCU real-time guard.The corresponding pressure switch of hydraulic efficiency gear level utilization, is shielded hydraulic fault is shown in real time by fault alarm, fault alarm screen by CAN bus by hydraulic system fault Real-time Feedback to entire car controller ACU.Converter plant level is to utilize fault contact switch; by driving control unit DCU, power circuit is carried out to real-time guard; DCU by CAN bus by power circuit fault Real-time Feedback to entire car controller ACU; ACU is set up fault database to all types of faults, and according to different fault levels, fault is carried out to cascade protection.
When system breaks down; system-levelly by fault database, fault is carried out somatotype and called; then according to different fault types, fault is carried out to classification; and carrying out corresponding conservation treatment, entire car controller automatically carries out limiting operation or stops vehicle driving mine electric wheel dump according to fault seriousness.
In the present embodiment, concrete failure sorted protection strategy is as shown in table 1 below, and concrete cascade protection flow process as shown in Figure 3.When system breaks down, first ACU judges whether this fault is major failure; When being major failure, ACU sends parking brake signal, and blocks current transformer trigging pulse by driving control unit DCU; If not major failure, ACU continues to judge whether this fault is medium fault; When being medium fault, system is blocked current transformer trigging pulse by driving control unit DCU, and failure message is sent into fault display device; If not medium fault, system judges that this fault is light fault, and system is by driving control unit DCU bypass trouble unit, and merit operation falls in system, failure message is sent into fault display device simultaneously.
Table 1 mine electric wheel dump failure sorted disposition table
| failure sorted | processing mode |
| major failure | send parking brake signal, and block current transformer trigging pulse by driving control unit DCU. |
| medium fault | by driving control unit DCU, block current transformer trigging pulse, failure message is sent into fault display device. |
| light fault | by driving control unit DCU bypass trouble unit, merit operation falls in system, failure message is sent into fault display device simultaneously. |
In concrete application example, method of the present invention can be further perfect, expands its application function.For example:
1, lifting position limitation protection
At rear portion, compartment and hydraulic lifting pump, lifting limit switch is housed, lifting limit switch is a normally closed contact.When compartment does not have lifting to put in place, lifting electromagnetic valve will be in obtaining electricity condition, and compartment is in lifting state; After carriage lifting puts in place, the normally closed contact of lifting limit switch disconnects, lifting electromagnetic valve is in off-position, no matter now in driver, lifting switch is parked in " lifting " or " maintenance " position, control system all can make hoisting system from entering hold mode, prevents that quarry tipper from occurring that lifting pulls out the phenomenon of cylinder.
2, driving engine pre-lubrication motor delayed startup is controlled
In starting-motor of engine side, set up lubricating oil pressure switch and pre-lubrication motor time-delay relay.Before engine starting, the normally closed contact of lubricating oil pressure switch is in closure state, the open contact of pre-lubrication motor time-delay relay, in off-state, is now pressed into machine oil driving engine oil main line, and while making engine starting, movable parts surface is in hydrodynamic lubrication state; When each component lubrication of driving engine fully after, the normally closed contact of lubricating oil pressure switch disconnects, the relay coil of pre-lubrication motor time-delay relay obtains electric, thereby it is electric that the power circuit of starter motor is obtained, driving engine starts to start.
3, main circuit grounding method of inspection
The ground connection that 2 series connection are set in power circuit DC side is detected divider resistance, and the entire car controller of quarry tipper detects the mid-point voltage of 2 divider resistances.When the half that mid-point voltage is vdc, power circuit does not have earth fault; When mid-point voltage much larger than or much smaller than a half of vdc, entire car controller detects power circuit and occurs earth fault, and automatically carries out limiting operation or stop vehicle driving according to the seriousness of ground connection.
4, fault screen warning protecting method
Gather Pressure Faults for Hydraulic System signal, and breakdown signal is inputed to fault alarm screen, fault alarm shields automatic record trouble, breakdown signal is fed back to entire car controller by CAN bus, and entire car controller automatically carries out limiting operation or stops vehicle driving mine electric wheel dump according to fault seriousness.
Below be only the preferred embodiment of the present invention, protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, should be considered as protection scope of the present invention.
Claims (6)
1. the synthetic circuit guard method of a mine electric wheel dump; it is characterized in that; be divided into system-level, hydraulic efficiency gear level and 3 levels of converter plant level mine electric wheel dump is carried out to real-time guard; by entire car controller, call fault database fault is carried out to somatotype; according to different faults type, fault is carried out to classification, failure judgement weight; and take to protect accordingly strategy to process, fault is reported to the police accordingly and moved.
2. the synthetic circuit guard method of mine electric wheel dump according to claim 1; it is characterized in that; described system-level be by entire car controller ACU real-time guard; described hydraulic efficiency gear level is to shield real-time guard by fault alarm, and described converter plant level is by driving control unit DCU real-time guard.
3. the synthetic circuit guard method of mine electric wheel dump according to claim 2; it is characterized in that; described hydraulic efficiency gear level is utilized pressure switch; by fault alarm, shield hydraulic fault shown in real time, fault alarm screen by CAN bus by hydraulic system fault Real-time Feedback to entire car controller ACU.
4. the synthetic circuit guard method of mine electric wheel dump according to claim 2; it is characterized in that; described converter plant level is to utilize fault contact switch; by driving control unit DCU, power circuit is carried out to real-time guard; control unit DCU by CAN bus by power circuit fault Real-time Feedback to entire car controller ACU; entire car controller ACU is set up fault database to all types of faults, and according to different fault levels, fault is carried out to cascade protection.
5. according to the synthetic circuit guard method of the mine electric wheel dump described in claim 2 or 3 or 4; it is characterized in that; when system breaks down; describedly system-levelly by fault database, fault is carried out somatotype and called; then according to different fault types, fault is carried out to classification; and carrying out corresponding conservation treatment, entire car controller automatically carries out limiting operation or stops vehicle driving mine electric wheel dump according to fault seriousness.
6. the synthetic circuit guard method of mine electric wheel dump according to claim 5, is characterized in that, when system breaks down, first entire car controller ACU judges whether this fault is major failure; When being major failure, entire car controller ACU sends parking brake signal, and blocks current transformer trigging pulse by driving control unit DCU; If not major failure, entire car controller ACU continues to judge whether this fault is medium fault; When being medium fault, system is blocked current transformer trigging pulse by driving control unit DCU, and failure message is sent into fault display device; If not medium fault, system judges that this fault is light fault, and system is by driving control unit DCU bypass trouble unit, and merit operation falls in system, failure message is sent into fault display device simultaneously.
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| CN201310527637.1A CN103552519B (en) | 2013-10-31 | 2013-10-31 | A kind of synthetic circuit guard method of mine electric wheel dump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176060A (en) * | 2014-07-25 | 2014-12-03 | 湖南大学 | Whole vehicle fault graded processing method for electric vehicles |
| CN108422917A (en) * | 2018-03-29 | 2018-08-21 | 广州电力机车有限公司 | A kind of dumper |
| CN108556716A (en) * | 2018-05-05 | 2018-09-21 | 袁菊花 | A kind of dumper |
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| US20080150483A1 (en) * | 2006-12-25 | 2008-06-26 | Kazuki Morita | Electrical storage apparatus for use in auxiliary power supply supplying electric power from electric storage device upon voltage drop of main power supply |
| CN101752873A (en) * | 2010-01-25 | 2010-06-23 | 株洲变流技术国家工程研究中心有限公司 | Protection method of DC electricity transmission high-voltage convertor station |
| CN102166998A (en) * | 2011-04-02 | 2011-08-31 | 湘电重型装备股份有限公司 | Vehicular management system of electric wheel self-unloading car |
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2013
- 2013-10-31 CN CN201310527637.1A patent/CN103552519B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080150483A1 (en) * | 2006-12-25 | 2008-06-26 | Kazuki Morita | Electrical storage apparatus for use in auxiliary power supply supplying electric power from electric storage device upon voltage drop of main power supply |
| CN101752873A (en) * | 2010-01-25 | 2010-06-23 | 株洲变流技术国家工程研究中心有限公司 | Protection method of DC electricity transmission high-voltage convertor station |
| CN102166998A (en) * | 2011-04-02 | 2011-08-31 | 湘电重型装备股份有限公司 | Vehicular management system of electric wheel self-unloading car |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176060A (en) * | 2014-07-25 | 2014-12-03 | 湖南大学 | Whole vehicle fault graded processing method for electric vehicles |
| CN104176060B (en) * | 2014-07-25 | 2016-08-24 | 湖南大学 | A kind of electric automobile whole failure sorted processing method |
| CN108422917A (en) * | 2018-03-29 | 2018-08-21 | 广州电力机车有限公司 | A kind of dumper |
| CN108556716A (en) * | 2018-05-05 | 2018-09-21 | 袁菊花 | A kind of dumper |
| CN108556716B (en) * | 2018-05-05 | 2020-10-13 | 利辛县江淮扬天汽车有限公司 | Self-discharging vehicle |
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| CN103552519B (en) | 2015-12-02 |
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