CN107947343A - One kind is stopped in emergency circuit and its implementation - Google Patents
One kind is stopped in emergency circuit and its implementation Download PDFInfo
- Publication number
- CN107947343A CN107947343A CN201711234119.5A CN201711234119A CN107947343A CN 107947343 A CN107947343 A CN 107947343A CN 201711234119 A CN201711234119 A CN 201711234119A CN 107947343 A CN107947343 A CN 107947343A
- Authority
- CN
- China
- Prior art keywords
- emergency
- power supply
- circuit
- type relay
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000007257 malfunction Effects 0.000 claims description 69
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 59
- 229910052710 silicon Inorganic materials 0.000 claims description 59
- 239000010703 silicon Substances 0.000 claims description 59
- 230000005611 electricity Effects 0.000 claims description 44
- 239000004065 semiconductor Substances 0.000 claims description 29
- 230000003068 static effect Effects 0.000 claims description 21
- 102100021895 Bcl-2-like protein 13 Human genes 0.000 claims description 14
- 101000971074 Homo sapiens Bcl-2-like protein 13 Proteins 0.000 claims description 14
- 230000008033 biological extinction Effects 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 2
- 238000010248 power generation Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/082—Safety, indicating, or supervising devices relating to valves
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Stop in emergency circuit and its implementation the invention discloses one kind, circuit is, there is the Electromagnetic Valve Circuit that stops in emergency of undercurrent detection electric current relay, over-current detection electric current relay including string, stop in emergency spare Electromagnetic Valve Circuit, Electromagnetic Valve Circuit overcurrent of stopping in emergency and its switch failure fault control circuit, stop in emergency solenoid valve undercurrent switching control circuit, to switch failure short-circuit detecting circuit in the Electromagnetic Valve Circuit that stops in emergency, and corresponding alarm circuit.Method is; parking power-fail is directly switch to stand-by power supply and powers and carry out indicator light alarm prompting; spare solenoid valve is switched to when solenoid valve undercurrent or the overcurrent of stopping in emergency to stop in emergency; the cut-out of its circuit is protected when overcurrent of stopping in emergency in Electromagnetic Valve Circuit or/and short-circuit switch failure; and corresponding indicator light alarm prompting is carried out, overcurrent protection stops until removing the Electromagnetic Valve Circuit power supply that stops in emergency.
Description
Technical field
The invention belongs to diesel engine safety protection technique field, and in particular to diesel engine stop in emergency Electromagnetic Valve Circuit failure
Switching, warning circuit and its implementation.
Background technology
At present：The emergency stopping system of diesel engine dies and oil-break two ways stopping in emergency for diesel engine, dies
Mode is the installation Electromagnetic Control valve at inlet and outlet mouth, can in case of emergency control valve be died；Oil-break mode be
Install oil-break Electromagnetic Control valving on oil circuit additional, can urgent oil-break when failure occurs.These Electromagnetic Control valves are i.e. logical
The often signified solenoid valve that stops in emergency.It is designed when the solenoid valve that the solenoid valve that stops in emergency uses is normal-closed electromagnetic valve
The Electromagnetic Valve Circuit that stops in emergency stops for degaussing (dead electricity)；When the solenoid valve that the solenoid valve that stops in emergency uses is normal-open electromagnetic valve
When it is designed stop in emergency Electromagnetic Valve Circuit for magnetic (energization) stops.Magnetic (energization) parking is stopped and obtains in degaussing (dead electricity)
In two methods, what prior art Literature was recorded：Diesel engine died with degaussing or the solenoid valve of oil-break set it is urgent
Electromagnetic Valve Circuit monitoring alarm method is many in vehicle-parking circuit, does not just sketch herein, only to the main problem of degaussing parking method
Reiterate：Miss the bus and stop, when parking power loss and/or the Electromagnetic Valve Circuit that stops in emergency disconnect, diesel engine mistakenly stop car, influences bavin
Oil machine normal operation.And diesel engine is returned with obtaining solenoid valve in the circuit that stops in emergency that magnetic is died or the solenoid valve of oil-break is set
Road monitoring alarm method is seldom.Diesel engine is worked to obtain the circuit that stops in emergency that magnetic is died or the solenoid valve of oil-break is set
Cheng Shi：The solenoid valve that stops in emergency when diesel engine works normally is in dead electricity (loss of excitation) state, that is, solenoid valve dead electricity of stopping in emergency
During state its control die, oil-break valve is logical；The solenoid valve that stops in emergency is led to when in the case of urgent and significant trouble
Electricity (magnetic), closes the dying of its control, oil-break valve, realizes that diesel engine stops in emergency.However, for diesel engine with magnetic into
In the circuit that stops in emergency that row is died or the solenoid valve of oil-break is set, when need to stop in emergency, solenoid valve normal power-up of stopping in emergency
Diesel engine ability emergency stop, when line fracture, coil open circuit, coil short and power supply electricity occurs in the electromagnetic valve coil that stops in emergency
Road loose contact need to stop in emergency when failure, can not just be closed by the solenoid valve that stops in emergency its control die, oil cut-off valve
Door, causes failure of stopping in emergency, so that the safety of diesel engine cannot ensure.Therefore for magnetic is died or oil-break
The diesel engine that solenoid valve is set stops in emergency circuit, to ensure the execution of diesel engine (diesel-driven generator) safe shutdown, is badly in need of pair
Whether the corresponding Electromagnetic Valve Circuit that stops in emergency, which fails, is detected and alarms.Although being documented, as number of patent application is：
A kind of diesel engine of 201510846141.X stops in emergency Electromagnetic Valve Circuit failure alarm circuit and its alarm method, equipped with spare
The redundant configuration of power supply and solenoid valve (being similarly normal-open electromagnetic valve), solves：Stand-by power supply is switched to during parking power loss
Power supply；Control recognizes Electromagnetic Valve Circuit disconnection of stopping in emergency when stopping in emergency, be switched to spare solenoid valves work, pass through
The dying of spare solenoid valve closing control, oil-break path.Seeming perfect set may not realize actually：Stop power supply
Stand-by power supply power supply is switched to during dead electricity；The Electromagnetic Valve Circuit that stops in emergency when control is stopped in emergency disconnects, and is switched to standby electricity
Magnet valve energization work, passes through the dying of spare solenoid valve closing control, oil-break path.On when stop power loss when it is impossible
Being switched to the reasons why stand-by power supply is powered is：Because specific control parking power supply and the current relay line of stand-by power supply switching
Enclose (the second current relay coil) rated current be greater than or equal to parking power supply rated current, and with the current mode after
The rated current that can not possibly be greater than or equal to parking power supply using LED as the electric current that the first alarm lamp flows through of electric apparatus coil concatenation,
Otherwise will not with LED as alarm lamp；When stop power loss when, it is assumed that flow through and the current relay coil tandem
It is greater than or equal to the rated current of parking power supply using LED as the electric current that the first alarm lamp flows through, which completes to stop
Car power supply and stand-by power supply switch operating, so require the rated current of alarm power supply to be greater than or equal to parking power supply again
Rated current, otherwise cannot normally complete switching parking power supply and stand-by power supply and switch；Again because with being alarmed using LED as second
The rated current for the current relay coil (the 3rd current relay coil) that lamp string connects, which also requires that to be greater than or equal to, stops
The rated current of car power supply, so in order to ensure alarm power supply works normally, just necessarily requires the specified electricity of alarm power supply
More than two times of the rated current more than or equal to parking power supply is flowed, and the rated current for power supply of alarming actually in engineering design
It is required that can not possibly be relevant with the rated current for the power supply that stops, the current requirements individually flowed through with the alarm lamp for power supply power supply of alarming
It is also impossible to, and current relay coil requirement with alarm power supply power supply relevant with the rated current for the power supply that stops
Rated current be also impossible to stop power supply rated current it is relevant, equally unlikely require what each alarm lamp flowed through
Electric current is greater than or equal to the rated current of the power supply for its power supply.On the Electromagnetic Valve Circuit that stops in emergency when control is stopped in emergency
Disconnect, it is impossible to which being switched to the reasons why spare solenoid valves work is：It is serially connected in the current mode for the Electromagnetic Valve Circuit that stops in emergency
Identification is less than the situation that the Electromagnetic Valve Circuit that stops in emergency disconnects at all for relay (the first current relay), because being serially connected in tight
Its is specified for current relay coil (the first current relay coil) of the emergency stop car Electromagnetic Valve Circuit invention setting requirements
Electric current is greater than or equal to the rated current of parking power supply, so as to identify less than emergency stop car Electromagnetic Valve Circuit disconnection, tool at all
Body the reason is that：1. the short-circuit situation for the Electromagnetic Valve Circuit that stops in emergency can only be recognized, because stopping in emergency Electromagnetic Valve Circuit just
During normal open electricity work, the normal current of set generation can not possibly be greater than or equal to the rated current of parking power supply, if institute
The electric current of generation is greater than or equal to the rated current of parking power supply, that Electromagnetic Valve Circuit that stops in emergency certainly occurs short-circuit existing
As；2. when the current relay for being serially connected in the Electromagnetic Valve Circuit that stops in emergency does not recognize the volume more than or equal to parking power supply
Constant current, the Electromagnetic Valve Circuit institute galvanization that can only illustrate to stop in emergency are in normal range (NR) or because loose contact resistance become high current
It is equal to zero less than normal value or direct breaking current；3. because it is serially connected in the current relay for the Electromagnetic Valve Circuit that stops in emergency only
The short-circuit situation for the Electromagnetic Valve Circuit that stops in emergency can be recognized, thus occur stopping in emergency Electromagnetic Valve Circuit institute's galvanization no matter
In normal, when being also less than normal (such as open circuit)：Assuming that the 3rd current relay coil being serially connected on the second alarm lamp
Institute's galvanization is greater than or equal to the rated current of parking power supply, then spare solenoid valve is similarly in obtain electric working status；Actually
The 3rd current relay coil institute galvanization being serially connected on the second alarm lamp can not possibly be greater than or equal to the volume of parking power supply
Constant current, so standby when the Electromagnetic Valve Circuit institute's galvanization that stops in emergency is regardless of being in normally, is also less than normally (as breaking)
Must not electricity with solenoid valve；4. because promptly stop when the current relay for being serially connected in the Electromagnetic Valve Circuit that stops in emergency can only recognize
The short-circuit situation of car Electromagnetic Valve Circuit, when the electric current for the Electromagnetic Valve Circuit that stops in emergency is greater than or equal to the specified electricity of parking power supply
During stream, to stopping in emergency, Electromagnetic Valve Circuit is not cut off, and in the same old way in "on" position, and has been turned off the spare electromagnetism that has no problem
Valve, therefore the Electromagnetic Valve Circuit short-circuit protection work that stops in emergency is not had, spare solenoid valve can not be switched to and stopped in emergency, when
Can not so overload protective function be played to parking power supply.Further reaffirm：Because be serially connected in two current modes on alarm lamp after
The rated current of electric apparatus coil is required to the rated current for being greater than or equal to parking power supply, and the rated current of hardly possible to alarm power supply is big
In or equal to parking power supply more than two times of rated current, and each with LED as alarm lamp light when the electric current that flows through it is big
In or equal to parking power supply rated current, otherwise, the current relay being serially connected on alarm lamp is had no idea work.Certainly
Also number of patent application is：201510845456.2 a kind of diesel-driven generator stop in emergency Electromagnetic Valve Circuit Failure Alarm electricity
Road and its alarm method, the redundant configuration equipped with stand-by power supply and solenoid valve (being similarly normal-open electromagnetic valve), solves：Parking electricity
Stand-by power supply power supply is switched to during the dead electricity of source；Control recognizes Electromagnetic Valve Circuit disconnection of stopping in emergency when stopping in emergency, be switched to
The work of spare solenoid valves, passes through the dying of spare solenoid valve closing control, oil-break path.Emitting seemingly realizes above-mentioned function,
But to be except there are number of patent application：201510846141.X a kind of diesel engine stop in emergency Electromagnetic Valve Circuit Failure Alarm
Circuit and its alarm method it is all there are the problem of and defect, also there are power supply used in alarm lamp for caused by diesel-driven generator
Electricity is directly powered, and alarm lamp indicates to can't see at all after diesel-driven generator emergency stop car, because when controlling diesel-driven generator emergency stop,
User can not possibly stare at alarm lamp and see, it may be noted that once alarm lamp instruction state only after emergency stop, but diesel-driven generator emergency stop
Do not generate electricity, how what is said or talked about has power supply output.And from number of patent application 201510846141.X and number of patent application 201510845456.2
Specification described in beneficial effect content see：Diesel engine (diesel generator) stops in emergency Electromagnetic Valve Circuit Failure Alarm
Circuit, can carry out self-shield in time in device fails, to ensure its Electromagnetic Valve Circuit normal work of stopping in emergency, from
And realize the automatic emergency stop-working protection of diesel engine (diesel generator) in abnormal cases.Further illustrate number of patent application
The attached drawing of 201510846141.X and number of patent application 201510845456.2 is diesel engine main control module to diesel engine (diesel oil
Machine generator) the Electromagnetic Valve Circuit failure alarm circuit that stops in emergency send emergency shutdown instruction, controlling switch module switch connect
Diesel engine (diesel generator) afterwards stops in emergency Electromagnetic Valve Circuit failure alarm circuit structure diagram, that is to say, that patent
The attached drawing of application number 201510846141.X and number of patent application 201510845456.2 is diesel engine when stopping in emergency
(diesel generator) stops in emergency Electromagnetic Valve Circuit failure alarm circuit structure diagram, so as to furtherly understand patent
Application number 201510846141.X and the diesel engine (diesel generator) described in number of patent application 201510845456.2 are adopted
The solenoid valve that stops in emergency for magnetic electromagnetic valve for braking.
The content of the invention
The purpose of the present invention in order to solve defect existing in the prior art, for magnetic is died or the electromagnetism of oil-break
The diesel engine that valve is set stops in emergency, there is provided one kind is stopped in emergency circuit and its implementation, realizes parking power-fail switching
Power to stand-by power supply, carried out tightly when stopping in emergency when stop in emergency Electromagnetic Valve Circuit undercurrent, overcurrent are switched to spare solenoid valve
Emergency stop car, solenoid valve overcurrent of stopping in emergency or switch failure also carry out physical break protection when short-circuit, ensure the circuit that stops in emergency
Work normally and prevent mistakenly stop；And indicator light is carried out to failure and is prompted respectively.
In order to realize above-mentioned purpose, the technical solution of realization of the invention is：
One kind is stopped in emergency circuit, including parking power supply DC1, stand-by power supply DC2, alarm power supply DC3, first voltage type after
Electric appliance, second voltage type relay, tertiary voltage type relay, the 4th voltage-type relay, the first current relay, second
Current relay, the solenoid valve HV1 that stops in emergency, spare solenoid valve HV2, Fisrt fault indicator light MIL1, the second indicating fault
Lamp MIL2, the 3rd malfunction indicator lamp MIL3, the 4th malfunction indicator lamp MIL4, first switch module K1, second switch module K2,
Switching tube 100, diode D1, diode D2, diode D3, diode D4, diode D5, resistance R1, resistance R2, resistance R3,
Controllable silicon SCR；The first voltage type relay coil KV11 directly power supply DC1 and connects with parking, the cathode of parking power supply DC1
Be connected with the normally open end of first voltage type relay two-way contact KV12, the cathode of stand-by power supply DC2 and first voltage type after
The normal-closed end of electric appliance two-way contact KV12 is connected, and the anode of stand-by power supply DC2 is connected with the anode for the power supply DC1 that stops；The
One end of the switch of one switch module K1 is connected with the common port of first voltage type relay two-way contact KV12, first switch
The other end of the switch of module K1 is sequentially connected in series tertiary voltage type relay normally closed contact KV33, the first current relay coil
KI11, the second current relay coil KI21, the solenoid valve HV1 that stops in emergency coil after with stop power supply DC1 anode phase
Connection, forms first parking circuit, described first stops circuit promptly to stop with parking power supply DC1 or stand-by power supply DC2
Car Electromagnetic Valve Circuit；One end of the switch of second switch module K2 is public with first voltage type relay two-way contact KV12's
End is connected, the other end of the switch of second switch module K2 be sequentially connected in series the coil of spare solenoid valve HV2, second voltage type after
Anode after electric appliance normally opened contact KV22 with the power supply DC1 that stops is connected, and the is formed with parking power supply DC1 or stand-by power supply DC2
Two parking circuits, the Article 2 parking circuit is the spare Electromagnetic Valve Circuit that stops in emergency；One end of resistance R2 and the first electricity
The common port of die mould relay two-way contact KV12 is connected, the other end of resistance R2 and the second current relay normally opened contact
One end of KI22 is connected, the other end of the second current relay normally opened contact KI22 and one end of resistance R3 and silicon-controlled
The control pole of SCR is connected with each other, the other end of resistance R3 and the cathode of controllable silicon SCR, tertiary voltage type relay coil KV31
One end and the 4th voltage-type relay normally open contact KV42 one end it is connected with each other, tertiary voltage type relay coil KV31's
The other end is connected with the anode for the power supply DC1 that stops, the other end and diode of the 4th voltage-type relay normally open contact KV42
The cathode of D5 is connected, and the anode of diode D5 is connected with the cathode of diode D4, the anode and first voltage of diode D4
The common port of type relay two-way contact KV12 is connected, anode and the first voltage type relay two-way contact of controllable silicon SCR
The common port of KV12 is connected, and forms Article 3 parking circuit with parking power supply DC1 or stand-by power supply DC2, the Article 3 is stopped
Car circuit is the switch failure fault control circuit of solenoid valve overcurrent and first switch module of stopping in emergency；First current mode relay
On the switch of one end access second switch module K2 and the connecting line of spare solenoid valve HV2 coils of device normally-closed contact KI12, the
After the other end concatenation second voltage type relay coil KV21 of one current relay normally-closed contact KI12 with the power supply DC1 that stops
Anode be connected, form Article 4 parking circuit with parking power supply DC1 or stand-by power supply DC2, the Article 4 is stopped circuit
For solenoid valve undercurrent switching control circuit of stopping in emergency；One end of the 4th voltage-type relay coil KV41 and parking power supply
The anode of DC1 is connected, and the other end is connected with the cold end of switching tube 100, the anode access first switch of diode D1
On the switch of module K1 and the connecting line of tertiary voltage type relay normally closed contact KV33, cathode and the diode D2 of diode D1
Anode be connected, the cathode of diode D2 is connected with the hot end of switching tube 100, one end of resistance R1 and parking power supply
The anode of DC1 is connected, the other end of resistance R1 and the cathode of diode D3 and the control terminal that switching tube 100 is accessed after connecing, and two
On the switch of anode access second switch module K2 and the connecting line of spare solenoid valve HV2 coils of pole pipe D3, with the power supply that stops
DC1 or stand-by power supply DC2 forms Article 5 parking circuit, the switch that the Article 5 parking circuit is first switch module K1
The short-circuit detecting that fails circuit；It is electric with alarm after the 3rd malfunction indicator lamp MIL3 of first voltage type relay normally closed contact KV13 concatenations
Source DC3 simultaneously connects, and parking power-fail alarm circuit is formed with alarm power supply DC3；Tertiary voltage type relay two-way contact KV32
Common port be connected with the anode for the power supply DC3 that alarms, the normally open end of tertiary voltage type relay two-way contact KV32 concatenation the
Cathode after two malfunction indicator lamp MIL2 with the power supply DC3 that alarms is connected, and solenoid valve mistake of stopping in emergency is formed with alarm power supply DC3
Stream and switch failure alarm circuit；The normal-closed end concatenation Fisrt fault indicator light of tertiary voltage type relay two-way contact KV34
Cathode after MIL1, second voltage type relay normally open contact KV23 with the power supply DC3 that alarms is connected, with power supply DC3 structures of alarming
Into the solenoid valve undercurrent alarm circuit that stops in emergency；4th voltage-type relay normally open contact KV43 concatenates the 4th malfunction indicator lamp
Power supply DC3 and connect with alarm after MIL4, the switch failure short-circuit alarming that first switch module K1 is formed with alarm power supply DC3 returns
Road；The control terminal of the first switch module K1 and the control terminal of second switch module K2 rear and diesel engine master control mould connected with each other
The output of block is connected；The switching tube 100 is p-type metal-oxide-semiconductor；Or the switching tube 100 is PNP type triode.
The rated current of the first current relay coil KI11 of the above is equal to the solenoid valve HV1 coils that stop in emergency
Extinction current；The rated current of the second current relay coil KI21 is equal to the solenoid valve HV1 coils that stop in emergency
Maximum allowed current.
Above-described first voltage type relay two-way contact KV12, second voltage type relay normally open contact KV22,
And the maximum currents that allow to flow through of tertiary voltage type relay normally closed contact KV33 are equal to or the volume more than parking power supply DC1
Constant current.
The above-described extinction current for stopping in emergency solenoid valve HV1 coils is to refer to guarantee to stop in emergency electromagnetism
The minimum current of valve HV1 normal works.
The above-described maximum allowed current for stopping in emergency solenoid valve HV1 coils is to refer to guarantee to burn out promptly
The maximum operating currenbt of electromagnetic valve for braking HV1 coils.
When above-described switching tube 100 is p-type metal-oxide-semiconductor, the grid of p-type metal-oxide-semiconductor is the control terminal of switching tube 100, p-type
The drain electrode of metal-oxide-semiconductor is the cold end of switching tube 100, and the source electrode of p-type metal-oxide-semiconductor is the hot end of switching tube 100.
When above-described switching tube 100 is PNP type triode, the base stage of PNP type triode is the control of switching tube 100
End, the cold end of the current collection extremely switching tube 100 of PNP type triode, the transmitting extremely switching tube 100 of PNP type triode
Hot end.
Above-described diode D1, D2, D3, D4 and D5 are switching diode.
Above-described p-type metal-oxide-semiconductor is P-channel enhancement type metal-oxide-semiconductor；The PNP type triode switchs three poles for positive-negative-positive
Pipe；The controllable silicon SCR is that the pressure drop of itself is the single-phase silicon-controlled of 1V or so after turning on.
In order to realize above-mentioned purpose, another technical solution of the invention is：
A kind of implementation method for the circuit that stops in emergency, comprises the following steps:
First, stop power supply DC1 and stand-by power supply DC2 handoff procedures
1) when stop power supply DC1 output for it is normal when, first voltage type relay coil KV11 obtain it is electric, first voltage type after
The contact action of electric appliance：
(1) the common port of first voltage type relay two-way contact KV12 and normally open end are connected, and parking power supply DC1 is to parking
Loop power supply,
(2) first voltage type relay normally closed contact KV13 is disconnected, and the 3rd malfunction indicator lamp MIL3 extinguishes；
2) when the power supply DC1 that stops fails, first voltage type relay coil KV11 dead electricity, first voltage type relay
Contact reverts to static state：
(1) the common port of first voltage type relay two-way contact KV12 is connected with normal-closed end, is switched to stand-by power supply DC2
To parking loop power supply,
(2) first voltage type relay normally closed contact KV13 is connected, and the 3rd malfunction indicator lamp MIL3 is lighted, and prompts user to stop
Car power supply DC1 fails；
3) stand-by power supply DC2 to parking loop power supply during, wait stop power supply DC1 output revert to normal when, first
Voltage-type relay coil KV11 obtains electric, the contact action of first voltage type relay：
(1) the common port of first voltage type relay two-way contact KV12 and normally open end are connected, recover parking power supply DC1 to
Stop loop power supply,
(2) first voltage type relay normally closed contact KV13 is disconnected, and the 3rd malfunction indicator lamp MIL3 lighted extinguishes；
2nd, the process for the solenoid valve HV1 and spare solenoid valve HV2 that stops in emergency is controlled
1) assert that second switch module K2 is intact, first switch module K1 quality is set to be unknown：
When diesel engine main control module sends emergency shut-down control device signal to first switch module K1 and second switch module K2
Whether period, the switch connection of second switch module K2, the switch of first switch module K1 are connected to be unknown,
When diesel engine main control module does not send emergency shut-down control device letter to first switch module K1 and second switch module K2
During number, second switch module K2's switches off, and it is unknown whether the switch of first switch module K1 is broken as；
2) when second switch module K2 switch in an ON state, then switching tube 100 ends, the 4th voltage-type relay
Contact be in static state, the switch failure fault control circuit of stop in emergency solenoid valve overcurrent and first switch module is not produced
Control signal, and the 4th malfunction indicator lamp MIL4 is extinguishing；
3) when the switch of second switch module K2 is off, and the switch of first switch module K1 is in and disconnects,
Then switching tube 100 ends, and the contact of the 4th voltage-type relay is in static state, solenoid valve overcurrent and first is not opened to stopping in emergency
The switch failure fault control circuit for closing module produces control signal, and the 4th malfunction indicator lamp MIL4 is extinguishing；
4) when the switch of second switch module K2 is off, and the switch of first switch module K1 is in and connects,
Then switching tube 100 turns on saturation, and the contact of the 4th voltage-type relay is in dynamic：
(1) when the 4th voltage-type relay normally open contact KV42 connections, to solenoid valve overcurrent and the first switch mould of stopping in emergency
The switch failure fault control circuit of block produces control signal：
1. if controllable silicon SCR is in triggering and conducting, controllable silicon SCR conducting, i.e. tertiary voltage type relay coil are kept
KV31 is remained powered on,
2. if controllable silicon SCR is in cut-off, tertiary voltage type relay coil KV31 is led to by diode D4, D5 branch
Electricity, and keep controllable silicon SCR to end, until diode D4, D5 branch when the contact of the 4th voltage-type relay reverts to static state
Stop being powered to tertiary voltage type relay coil KV31,
(2) the 4th voltage-type relay normally open contact KV43 is connected, and lights the 4th malfunction indicator lamp MIL4, prompts user to exist
The switch failure short circuit of first switch module K1 during non-emergent parking；
5) when the second current relay detects the maximum allowed current more than the solenoid valve HV1 coils that stop in emergency,
The contact of second current relay is in dynamic, i.e. the second current relay normally opened contact KI22 is connected, and illustrates first
The switch of switch module K1 and the switch of second switch module K2 are in on-state, and form triggering by resistance R2 and R3
Circuit produces trigger signal to controllable silicon SCR：
1. if controllable silicon SCR is in the conduction state, controllable silicon SCR conducting is kept,
2. if controllable silicon SCR is in cut-off state, triggering controllable silicon SCR conducting；
6) when the second current relay does not detect the maximum allowed current more than the solenoid valve HV1 coils that stop in emergency
When, the contact of the second current relay is in static state, i.e. the second current relay normally opened contact KI22 is disconnected, by resistance R2
Trigger circuit, which is formed, with R3 trigger signal is not produced to controllable silicon SCR；
7) when controllable silicon SCR is on or/and the 4th voltage-type relay normally open contact KV42 is in and connects, the 3rd electricity
Die mould relay coil KV31 is powered, i.e., the contact of tertiary voltage type relay is in dynamic：
(1) the tertiary voltage type relay normally closed contact KV33 being serially connected in the Electromagnetic Valve Circuit that stops in emergency is disconnected, to urgent
Electromagnetic valve for braking circuit carries out physical break protection,
(2) the common port of tertiary voltage type relay two-way contact KV32 is connected with normally open end, lights the second malfunction indicator lamp
MIL2, prompt user stop in emergency solenoid valve HV1 coil overcurrent or/and first switch module K1 switch failure short circuit：
1. being lighted during the second malfunction indicator lamp MIL2 stops in emergency in diesel engine, illustrate the solenoid valve HV1 that stops in emergency
Coil overcurrent,
2. when the 4th malfunction indicator lamp MIL4 is always maintained at OFF state, then, the second malfunction indicator lamp MIL2 lighted, says
The coil overcurrent of the bright solenoid valve HV1 that stops in emergency,
3. when the second malfunction indicator lamp MIL2 is lit during the non-emergent parking of diesel engine by extinguishing, at this time with the 4th therefore
Barrier indicator light MIL4 functions are identical, that is, illustrate the switch failure short circuit of first switch module K1,
4. when the second malfunction indicator lamp MIL2 is remain on during the non-emergent parking of diesel engine, and the 4th malfunction indicator lamp
MIL4 is lit by extinguishing, then in the second malfunction indicator lamp MIL2 for lighting, the line for the solenoid valve HV1 that both illustrates to stop in emergency
Overcurrent is enclosed, adds the switch failure short circuit of bright first switch module K1；
8) when second switch module K2 switch in an ON state, the electric current of Electromagnetic Valve Circuit to be stopped in emergency is less than tight
During the extinction current of anxious electromagnetic valve for braking HV1 coils, the contact of the first current relay is in static state, the first current mode
Relay normally closed contact KI12 connect, second voltage type relay coil KV21 obtain it is electric, at the contact of second voltage type relay
In dynamic：
(1) second voltage type relay normally open contact KV22 is connected, and spare solenoid valve HV2 obtains magnetic, and control diesel engine promptly stops
Car,
Second voltage type relay normally open contact KV23 connect, when tertiary voltage type relay contact be in static state,
I.e. the common port of tertiary voltage type relay two-way contact KV32 is connected with normal-closed end, is lighted Fisrt fault indicator light MIL1, is carried
Show user stop in emergency during tertiary voltage type relay normally closed contact KV33 be in connect in the case of stop in emergency solenoid valve
The coil undercurrent of HV1,
(3) when second voltage type relay normally open contact KV23 is connected, when the contact of tertiary voltage type relay is in dynamic
State, the i.e. common port of tertiary voltage type relay two-way contact KV32 are disconnected with normal-closed end, and Fisrt fault indicator light MIL1 extinguishes；
9) when the electric current for flowing through the solenoid valve HV1 coils that stop in emergency is less than or equal to its maximum allowed current, more than or equal to it
During extinction current, the solenoid valve HV1 that stops in emergency obtains magnetic, and control diesel engine stops in emergency；
10) after controllable silicon SCR is powered, wait to remove parking power supply DC1 and stand-by power supply DC2, controllable silicon SCR cut-off.
When the switch of above-described second switch module K2 is off：If at the switch of first switch module K1
In connection, then the conducting of switching tube 100 saturation, the contact of the 4th voltage-type relay are in dynamic, tertiary voltage type relay line
KV31 is enclosed by being powered, the contact of tertiary voltage type relay is in dynamic, the be serially connected in the Electromagnetic Valve Circuit that stops in emergency
Three voltage-type relay normally closed contact KV33 are disconnected, and to stopping in emergency, Electromagnetic Valve Circuit carries out physical break protection；If first opens
The switch for closing module K1 is in disconnection, then stop in emergency Electromagnetic Valve Circuit no current；Therefore at the switch of second switch module K2
When off-state, there is no the electric current for flowing through the solenoid valve HV1 coils that stop in emergency to be more than the solenoid valve HV1 coils that stop in emergency
The situation of maximum allowed current.
Beneficial effect：
One kind of the present invention is stopped in emergency circuit and its implementation, main feature：
(1) during the entire process of during diesel engine stops in emergency period and non-emergent parking, once parking power-fail,
Stand-by power supply work is switched to, and lights the 3rd malfunction indicator lamp MIL3, prompts user's parking power-fail；Power supply to be stopped is extensive
It is multiple normal, automatically return to parking power supply power supply.
(2) overcurrent protection is not in before diesel engine stops in emergency, during diesel engine stops in emergency, if stopping in emergency electricity
The coil undercurrent of magnet valve HV1, is stopped in emergency by spare solenoid valve HV2, and lights Fisrt fault indicator light MIL1, is carried
Show that user is stopped in emergency the coil undercurrent of solenoid valve HV1.
(3) during diesel engine stops in emergency, if detecting the coil overcurrent for the solenoid valve HV1 that stops in emergency, cut-out promptly stops
Car Electromagnetic Valve Circuit, the Electromagnetic Valve Circuit that stops in emergency to cut-out carry out short-circuit protection, light the second malfunction indicator lamp MIL2, prompt
User is stopped in emergency the coil overcurrent of solenoid valve HV1, and by means of the solenoid valve HV1 that stops in emergency coil undercurrent when be switched to it is standby
Method of stopping in emergency is carried out with solenoid valve HV2, is stopped in emergency by spare solenoid valve HV2.
(4) the Electromagnetic Valve Circuit switch failure that stops in emergency during the non-emergent parking of diesel engine is short-circuit, and cut-off loop is protected
Protect and prevent mistakenly stop car, protect and removed when being stopped in emergency.
(5) overcurrent protection is in before diesel engine stops in emergency, when progress diesel engine stops in emergency, is switched to spare electromagnetism
Valve HV2 stops in emergency.
Brief description of the drawings
Fig. 1 is a kind of circuit structure diagram of circuit that stops in emergency of the present invention；
In figure：KV11. first voltage type relay coil, KV12. first voltage type relay two-way contacts, KV13.
One voltage-type relay normally closed contact, KV21. second voltage type relay coils, KV22, KV23. second voltage type relay are normal
Open contact, KV31. tertiary voltage type relay coils, KV32. tertiary voltage type relay two-way contacts, KV33. tertiary voltages
Type relay normally closed contact, KI11. the first current relay coils, KI12. the first current relay normally-closed contacts,
KI21. the second current relay coil, KI22. the second current relay normally opened contacts, the 4th voltage-type relays of KV41.
Coil, the 4th voltage-type relay normally open contact of KV42, KV43., 100. switching tubes, D1, D2, D3, D4, D5. diode, R1,
R2, R3. resistance, SCR. is silicon-controlled, DC1. parking power supplys, DC2. stand-by power supplies, DC3. alarm power supplys, and HV1. stops in emergency electricity
Magnet valve, the spare solenoid valves of HV2., MIL1. Fisrt fault indicator lights, the second malfunction indicator lamp of MIL2., the 3rd indicating fault of MIL3.
Lamp, the 4th malfunction indicator lamp of MIL4., K1. first switch modules, K2. second switch modules.
Embodiment
The circuit as shown in Figure 1, one kind is stopped in emergency, including parking power supply DC1, stand-by power supply DC2, alarm power supply DC3, the
One voltage-type relay, second voltage type relay, tertiary voltage type relay, the 4th voltage-type relay, the first current mode
Relay, the second current relay, the solenoid valve HV1 that stops in emergency, spare solenoid valve HV2, Fisrt fault indicator light MIL1,
Two malfunction indicator lamp MIL2, the 3rd malfunction indicator lamp MIL3, the 4th malfunction indicator lamp MIL4, first switch module K1, second open
Close module K2, switching tube 100, diode D1, diode D2, diode D3, diode D4, diode D5, resistance R1, resistance
R2, resistance R3, controllable silicon SCR；The first voltage type relay coil KV11 directly power supply DC1 and connects with parking, parking electricity
The cathode of source DC1 is connected with the normally open end of first voltage type relay two-way contact KV12, the cathode of stand-by power supply DC2 with
The normal-closed end of first voltage type relay two-way contact KV12 is connected, the anode of stand-by power supply DC2 and bearing for parking power supply DC1
Pole is connected；One end of the switch of first switch module K1 and the common port phase of first voltage type relay two-way contact KV12
Connection, the other end of the switch of first switch module K1 are sequentially connected in series tertiary voltage type relay normally closed contact KV33, the first electricity
Flow pattern relay coil KI11, the second current relay coil KI21, the solenoid valve HV1 that stops in emergency coil after with parking electricity
The anode of source DC1 is connected, and first parking circuit, first parking are formed with parking power supply DC1 or stand-by power supply DC2
Circuit is the Electromagnetic Valve Circuit that stops in emergency；One end of the switch of second switch module K2 and first voltage type relay two-way contact
The common port of KV12 is connected, the other end of the switch of second switch module K2 be sequentially connected in series the coil of spare solenoid valve HV2,
Anode after second voltage type relay normally open contact KV22 with the power supply DC1 that stops is connected, with the power supply DC1 or spare that stops
Power supply DC2 forms Article 2 parking circuit, and the Article 2 parking circuit is the spare Electromagnetic Valve Circuit that stops in emergency；Resistance R2's
One end is connected with the common port of first voltage type relay two-way contact KV12, the other end of resistance R2 and the second current mode after
One end of electric appliance normally opened contact KI22 is connected, the other end of the second current relay normally opened contact KI22 and the one of resistance R3
The control pole of end and controllable silicon SCR is connected with each other, the other end of resistance R3 and the cathode of controllable silicon SCR, tertiary voltage type relay
One end of device coil KV31 and one end of the 4th voltage-type relay normally open contact KV42 are connected with each other, tertiary voltage type relay
The other end of coil KV31 is connected with the anode for the power supply DC1 that stops, and the 4th voltage-type relay normally open contact KV42's is another
End is connected with the cathode of diode D5, and the anode of diode D5 is connected with the cathode of diode D4, the anode of diode D4
It is connected with the common port of first voltage type relay two-way contact KV12, anode and the first voltage type relay of controllable silicon SCR
The common port of device two-way contact KV12 is connected, and Article 3 parking circuit, institute are formed with parking power supply DC1 or stand-by power supply DC2
It is the switch failure fault control circuit of solenoid valve overcurrent and first switch module of stopping in emergency to state Article 3 parking circuit；First
The switch and spare solenoid valve HV2 coils of one end access second switch module K2 of current relay normally-closed contact KI12
On connecting line, after the other end concatenation second voltage type relay coil KV21 of the first current relay normally-closed contact KI12
It is connected with the anode for the power supply DC1 that stops, Article 4 parking circuit is formed with parking power supply DC1 or stand-by power supply DC2, described the
Four parking circuits are solenoid valve undercurrent switching control circuit of stopping in emergency；The one of the 4th voltage-type relay coil KV41
The anode with the power supply DC1 that stops is held to be connected, the other end is connected with the cold end of switching tube 100, the anode of diode D1
Access on the switch of first switch module K1 and the connecting line of tertiary voltage type relay normally closed contact KV33, the moon of diode D1
Pole is connected with the anode of diode D2, and the cathode of diode D2 is connected with the hot end of switching tube 100, resistance R1's
One end is connected with the anode for the power supply DC1 that stops, and the other end of resistance R1 and the cathode of diode D3 simultaneously access switching tube after connecing
100 control terminal, the connecting line of the switch and spare solenoid valve HV2 coils of the anode access second switch module K2 of diode D3
On, Article 5 parking circuit is formed with parking power supply DC1 or stand-by power supply DC2, the Article 5 parking circuit is first switch
The switch failure short-circuit detecting circuit of module K1；First voltage type relay normally closed contact KV13 concatenates the 3rd malfunction indicator lamp
Power supply DC3 and connect with alarm after MIL3, parking power-fail alarm circuit is formed with alarm power supply DC3；Tertiary voltage type relay
The common port of device two-way contact KV32 is connected with the anode for the power supply DC3 that alarms, tertiary voltage type relay two-way contact KV32
Normally open end concatenate the second malfunction indicator lamp MIL2 after be connected with the cathode for the power supply DC3 that alarms, formed with alarm power supply DC3 tight
Anxious electromagnetic valve for braking overcurrent and switch failure alarm circuit；The normal-closed end concatenation the of tertiary voltage type relay two-way contact KV34
Cathode after one malfunction indicator lamp MIL1, second voltage type relay normally open contact KV23 with the power supply DC3 that alarms is connected, with report
Alert power supply DC3 forms the solenoid valve undercurrent alarm circuit that stops in emergency；4th voltage-type relay normally open contact KV43 concatenations the 4th
Power supply DC3 and connect with alarm after malfunction indicator lamp MIL4, the switch failure that first switch module K1 is formed with alarm power supply DC3 is short
Road alarm circuit；The control terminal of the first switch module K1 and the control terminal of second switch module K2 rear and diesel oil connected with each other
The output of machine main control module is connected.
Controllable silicon SCR described above be used to stop in emergency Electromagnetic Valve Circuit overcurrent when be powered self-locking.When the second current mode after
Electric appliance normally opened contact KI22 is connected, and parking power supply DC1 or stand-by power supply DC2 is carried by resistance R2, R3 to controllable silicon SCR control pole
For triggering and conducting signal, triggering controllable silicon SCR conducting；When the second current relay normally opened contact KI22 is disconnected, stop power supply
DC1 and stand-by power supply DC2 cannot provide triggering and conducting signal by resistance R2, R3 to controllable silicon SCR control pole, you can control silicon
SCR control pole is without triggering Continuity signal；The present invention selects controllable silicon SCR to be single-phase silicon-controlled, and selected controllable silicon SCR is turning on
The pressure drop of itself is about 1V or so afterwards, is ensured that during controllable silicon SCR turns on self-locking, when the 4th voltage-type relay is normal
Contact KV42 connections are opened, the forward direction being attempted by between controllable silicon SCR anode and cathode is not turned on along diode D4, D5 of string, i.e.,
Make electric current from positive diode D4, D5 stream part along string into tertiary voltage type relay coil KV31, and flow through controllable
The electric current of silicon SCR anodes, which is more than, maintains electric current, in order to during more reliably ensuring controllable silicon SCR conducting self-locking, be attempted by controllable
Forward direction between silicon SCR anodes and cathode does not influence the conducting state that controllable silicon SCR is in along the diode of string, can will be positive suitable
Two diodes of string are attempted by between controllable silicon SCR anode and cathode after being changed to the suitable string of three diode forwards.Due to parking electricity
Source DC1 and stand-by power supply DC2 rated voltages are generally 24V, during controllable silicon SCR is ended, when the 4th voltage-type relay is normal
Contact KV42 connections are opened, tertiary voltage type relay coil KV31 is powered, and the electric current flowed through is in the positive diode along string
The decompression turned on D4, D5 does not interfere with tertiary voltage type relay power normal work, because on voltage-type relay coil
Pressure drop can generally work normally between positive and negative the 10% of coil rated voltage.
Above-described first switch module K1 and second switch module K2 when for serviceable condition when：Receiving diesel engine
(machine) control signal that what main control module was sent stop in emergency, the switch of the switch connection accordingly controlled, i.e. first switch module K1
Connect, the switch connection of second switch module K2；(machine) control of stopping in emergency that diesel engine main control module sends is not being received
Signal, the switch accordingly controlled are off, i.e. the switch of first switch module K1 is off, second switch mould
The switch of block K2 is off.
It is described above in (machine) control signal of stopping in emergency for receiving diesel engine main control module and sending, that is to say, that this hair
The bright circuit that stops in emergency stops in emergency in (machine) control signal of stopping in emergency for receiving diesel engine main control module and sending at this time
Circuit is operated in control diesel engine and stops in emergency.
It is described above in (machine) control signal of stopping in emergency for not receiving diesel engine main control module and sending, that is to say, that this
The circuit that stops in emergency of invention is in (machine) control signal of stopping in emergency for not receiving diesel engine main control module and sending, at this time promptly
Vehicle-parking circuit is operated in non-controlling diesel engine and stops in emergency.
But in real work：Since spare solenoid valve HV2 frequency of use is not high, so the switch of second switch module K2
It is less likely to be damaged；But for the relatively spare solenoid valve HV2 of the solenoid valve HV1 that stops in emergency：Frequency of use is high, such as when the electricity that stops in emergency
Magnet valve HV1 causes its coil short to be just easy to first switch module K1 switching burning short circuit after being used for multiple times, then in non-controlling
Diesel engine stops in emergency Electromagnetic Valve Circuit there is also during overcurrent, or non-emergent parking during stopping in emergency, due to first switch
The short circuit of module K1 switch failures, causes and stops in emergency by mistake.Therefore assert that the second switch module K2 is intact in the present invention
State, first switch module K1 are unknown state.
Described diode D1, D2, D3, D4 and D5 are switching diode, and diode D1, D2, D4 and D5 select transwitch
Diode, diode D3 select transwitch diode or germanium switching diode.
The switching tube 100 is p-type metal-oxide-semiconductor or PNP type triode, and the p-type metal-oxide-semiconductor used is P-channel enhancement type MOS
Pipe, the PNP type triode used is positive-negative-positive switching transistor；When switching tube 100 is p-type metal-oxide-semiconductor, the grid of p-type metal-oxide-semiconductor
(G) be switching tube 100 control terminal, the drain electrode (D) of p-type metal-oxide-semiconductor is the cold end of switching tube 100, the source electrode of p-type MOS pipes
(S) it is the hot end of switching tube 100, and disconnection is in the switch of second switch module K2, first switch module K1's opens
Close in when connecting (short circuit), gate-source voltage is adjusted by resistance R1, switching tube 100 is turned on saturation；When switching tube 100 is
During PNP type triode, the base stage of PNP type triode is the control terminal of switching tube 100, and the current collection of PNP type triode extremely switchs
The cold end of pipe 100, the hot end of the transmitting extremely switching tube 100 of PNP type triode, and second switch module K2's
Switch when the switch of first switch module K1 is in connection (short circuit), adjusts base current by resistance R1, makes out in disconnecting
Close pipe 100 and turn on saturation.When the switch connection of second switch module K2, i.e. when diode D3 is turned on, diode D1 anodes are to opening
Close pipe 100 control terminal and be clamped at 0.7V or so, make positive diode D1 and diode D2 cut-off along string, so when first
Whether the switch connection of switch module K1, switching tube 100 is turned off.When the switch of first switch module K1, which is in, to be disconnected, open
Close pipe 100 and use p-type metal-oxide-semiconductor, no matter second switch module K2 switch connection whether, equal no-voltage between P type metal-oxide-semiconductor grid source,
P-type metal-oxide-semiconductor ends；When the switch of first switch module K1, which is in, to be disconnected, switching tube 100 uses PNP type triode no matter
Whether the switch connection of second switch module K2, the equal no current of base stage of PNP type triode, PNP type triode cut-off.
For switching tube 100 for for PNP type triode：Disconnected when the switch of second switch module K2 is in, i.e. two poles
When pipe D3 is in cut-off, if the switch of first switch module K1, which is in, connects (short circuit), stop power supply DC1 or stand-by power supply
DC2 provides base current by resistance R1 current limlitings for PNP type triode, meets PNP type triode conducting saturation requirement, positive-negative-positive
Triode ON saturation, otherwise, PNP type triode base current are zero, PNP type triode cut-off；As second switch module K2
Switch connection, i.e. diode D3 turn on when, diode D1 anodes are clamped at 0.7V or so to 100 control terminal of switching tube,
Make positive diode D1 and diode D2 cut-off along string, at this time no matter first switch module K1 switch connection whether, PNP
Type triode is turned off.
For switching tube 100 for for p-type metal-oxide-semiconductor：Disconnected when the switch of second switch module K2 is in, i.e. diode D3
During in cut-off, if the switch of first switch module K1, which is in, connects (short circuit), stop power supply DC1 or stand-by power supply DC2 warps
Resistance R1 partial pressures obtain the gate-source voltage of p-type metal-oxide-semiconductor, meet the conducting saturation requirement of p-type metal-oxide-semiconductor, and p-type metal-oxide-semiconductor turns on saturation,
Otherwise, the gate-source voltage of p-type metal-oxide-semiconductor is zero, the cut-off of p-type metal-oxide-semiconductor；When the switch connection of second switch module K2, i.e. two poles
When pipe D3 is turned on, diode D1 anodes are clamped at 0.7V or so to 100 control terminal of switching tube, make the positive diode along string
D1 and diode D2 cut-off, at this time no matter first switch module K1 switch connection whether, p-type metal-oxide-semiconductor is turned off.
When switching tube 100 is in cut-off, then the 4th voltage-type relay coil KV41 no currents by, the 4th voltage-type after
Electric appliance does not work, and the contact of the 4th voltage-type relay is in static state.
When switching tube 100 is on saturation, then the 4th voltage-type relay coil KV41 has electric current to pass through the 4th voltage
Type relay works, and the contact of the 4th voltage-type relay is in dynamic.
When assert that second switch module K2 is serviceable condition, in second switch module K2 in during switching off：Open
Close pipe 100 to end, i.e., the contact of the 4th voltage-type relay is in static state, then illustrates that the switch of first switch module K1 is same
It is intact in being broken as；Switching tube 100 turns on saturation, i.e. the contact of the 4th voltage-type relay is in dynamic, then assert first
The switch of switch module K1, which is in, connects (short circuit) as damage.
When assert second switch module K2 be serviceable condition, during the switch connection of second switch module K2：No matter
Whether the switch of one switch module K1 is connected, and switching tube 100 is turned off, and the contact of the 4th voltage-type relay is in static state,
I.e. during the switch connection of second switch module K2, then switch failure short-circuit detecting circuit does not open first switch module K1
Whether pass damages detection identification.
Above-described solenoid valve undercurrent switching control circuit of stopping in emergency is used for：Detected during stopping in emergency urgent
During the coil undercurrent of electromagnetic valve for braking HV1, it is switched to spare solenoid valve HV2 and carries out emergency shut-down control device；Stop in emergency solenoid valve
Undercurrent switching control circuit and by means of give detect the coil overcurrent for the solenoid valve HV1 that stops in emergency during stop in emergency when, switching
Emergency shut-down control device is carried out to spare solenoid valve HV2.
The switch failure fault control circuit of above-described stop in emergency solenoid valve overcurrent and first switch module：For
Stop in emergency during stopping in emergency solenoid valve HV1 coil overcurrent and non-emergent parking during first switch module switch failure
When short-circuit, to stopping in emergency, Electromagnetic Valve Circuit carries out physical break protection, and to the physics for Electromagnetic Valve Circuit overcurrent of stopping in emergency
Tripping protection is remained to terminates (releasing) when parking power supply DC1 and stand-by power supply DC2 is removed, otherwise, to the electromagnetism that stops in emergency
During the physical break protection of valve circuit overcurrent is always held at diesel engine later stop in emergency period and non-emergent parking, i.e.,
It is always held in the later whole implementation procedure of diesel engine；And the physical break of the switch failure short circuit to first switch module
(releasing) is terminated when protecting pending stop in emergency.The coil mistake for the solenoid valve HV1 that stops in emergency is detected during stopping in emergency
The switch failure fault control circuit of stream, then solenoid valve overcurrent of stopping in emergency and first switch module：To the solenoid valve that stops in emergency
Circuit carries out physical break protection, and is always held in the later whole implementation procedure of diesel engine, waits to remove parking power supply DC1
(releasing) is terminated with during stand-by power supply DC2；The switch failure short circuit of first switch module is detected during non-emergent parking, then
The switch failure fault control circuit of solenoid valve overcurrent of stopping in emergency and first switch module：To stop in emergency Electromagnetic Valve Circuit into
Row physical break/holding tripping protection, and until terminate (releasing) when being stopped in emergency.Detected during non-emergent parking
The switch failure short circuit of first switch module, to stopping in emergency, Electromagnetic Valve Circuit carries out physical break protection, also solves non-tight
The switch failure short circuit of first switch module K1 causes the problem of emergency stop by mistake during emergency stop car；To during non-emergent parking when
The switch failure short circuit of one switch module, the protection of physical break/holding cut-out is carried out to the Electromagnetic Valve Circuit that stops in emergency until
(releasing) is terminated when being stopped in emergency, is conducive to mainly stop in emergency using the solenoid valve HV1 that stops in emergency.Stop when promptly
Car Electromagnetic Valve Circuit be in the switch failure fault control circuit of stop in emergency solenoid valve overcurrent and first switch module to its because
The physical break guard mode that overcurrent carries out, then when stopping in emergency to diesel engine, directly cut by the solenoid valve undercurrent that stops in emergency
Control loop is changed, control is switched to spare solenoid valve HV2 and stops in emergency.
Fisrt fault indicator light MIL1 described above be used to stopping in emergency during stopping in emergency solenoid valve HV1 coil the
Undercurrent prompting under the three non-disconnections of voltage-type relay normally closed contact KV33, when Fisrt fault indicator light MIL1 is lighted,
The Electromagnetic Valve Circuit that illustrates to stop in emergency be likely to contact poor electrical resistance become larger or stop in emergency solenoid valve HV1 coil open circuit or should
Circuit is breaking elsewhere, such as the switch failure open circuit of first switch module, is also possible to damage including institute's power supply source certainly and leads
Cause for stream deficiency.
Above-described second malfunction indicator lamp MIL2 is that the contact of tertiary voltage type relay is in operating state time point
Bright, the second malfunction indicator lamp MIL2 is lighted, the coil overcurrent or/and first switch module K1 of the solenoid valve HV1 that illustrates to stop in emergency
Switch failure short circuit：
1. being lighted during the second malfunction indicator lamp (MIL2) is stopped in emergency in diesel engine, illustrate the solenoid valve that stops in emergency
(HV1) coil overcurrent；
2. when the 4th malfunction indicator lamp (MIL4) is always maintained at OFF state, then, and the second malfunction indicator lamp lighted
(MIL2), illustrate to stop in emergency the coil overcurrent of solenoid valve (HV1)；
3. when the second malfunction indicator lamp (MIL2) is lit during the non-emergent parking of diesel engine by extinguishing, at this time with the 4th
Malfunction indicator lamp (MIL4) function is identical, that is, illustrates the switch failure short circuit of first switch module (K1)；
4. when the second malfunction indicator lamp (MIL2) is remain on during the non-emergent parking of diesel engine, and the 4th indicating fault
Lamp (MIL4) is lit by extinguishing, then in the second malfunction indicator lamp (MIL2) lighted, both illustrates the solenoid valve that stops in emergency
(HV1) coil overcurrent, adds the switch failure short circuit of bright first switch module (K1).
Above-described 4th malfunction indicator lamp MIL4, the switch for first switch module K1 stop diesel engine is non-emergent
Short circuit of failing during car is prompted, if diesel engine, during non-emergent parking, the switch failure of first switch module K1 is short-circuit, then point
Bright 4th malfunction indicator lamp MIL4, otherwise keeps extinguishing.The present invention due to assert second switch module K2 be serviceable condition, therefore
During diesel engine stops in emergency, the 4th malfunction indicator lamp MIL4 is in OFF state.
Above-described 4th malfunction indicator lamp MIL4, the switch for first switch module K1 stop diesel engine is non-emergent
Short circuit of failing during car is prompted, if diesel engine, during non-emergent parking, the switch failure of first switch module K1 is short-circuit, then point
Bright 4th malfunction indicator lamp MIL4, otherwise keeps extinguishing.The present invention due to assert second switch module K2 be serviceable condition, therefore
During diesel engine stops in emergency, the 4th malfunction indicator lamp MIL4 is in OFF state.
The 3rd malfunction indicator lamp MIL3 of the above, which is used to stop when power supply DC1 fails, to be prompted, when the 3rd event of parking power supply
When barrier indicator light MIL3 is lighted, the power supply DC1 output voltages that illustrate to stop are less than first voltage type relay coil KV11 maintenance electricity
Press or equal to zero, here when parking power supply DC1 output voltages less than first voltage type relay coil KV11 maintenance voltages or wait
Parking power supply DC1 failures (or halting car power supply DC1 dead electricity or decompression) are regarded as when zero.
The rated voltage of first voltage type relay coil KV11 described above is more than the rated voltage of parking power supply DC1,
Be conducive to the rated voltage for making first voltage type relay coil KV11 maintenance voltages close to parking power supply DC1, but ensure again
The contact of first voltage type relay normally becomes dynamic from static, and the present invention selects first voltage type relay coil KV11's
Rated voltage is equal to the 106% of the rated voltage of parking power supply DC1.
Above-described first voltage type relay two-way contact KV12, second voltage type relay normally open contact KV22,
And the maximum current that tertiary voltage type relay normally closed contact KV33 is allowed to flow through is all higher than or equal to the volume for stopping power supply DC1
Constant current.
Above-described first current relay coil KI11：When the electric current flowed through is more than or equal to its rated current
The contact action of one current relay, i.e. normally opened contact are connected, and normally-closed contact disconnects；When the electric current flowed through is less than its specified electricity
The contact of the first current relay is in static state during stream, i.e. normally opened contact disconnects, and normally-closed contact is connected.
Above-described second current relay coil KI21：The second electricity when the electric current flowed through is more than its rated current
The contact action of flow pattern relay, i.e. normally opened contact are connected, and normally-closed contact disconnects；When the electric current flowed through is less than or equal to its specified electricity
The contact of the second current relay is in static state during stream, i.e. normally opened contact disconnects, and normally-closed contact is connected.
The rated current of the first current relay coil KI11 of the above is set equal to the solenoid valve HV1 lines that stop in emergency
The extinction current of circle；The rated current of the second current relay coil KI21 is set equal to the solenoid valve that stops in emergency
The maximum allowed current of HV1 coils.
The above-described extinction current for stopping in emergency solenoid valve HV1 coils is to refer to guarantee to stop in emergency electromagnetism
The minimum current of valve HV1 normal works.
The above-described maximum allowed current for stopping in emergency solenoid valve HV1 coils is to refer to guarantee to burn out promptly
The maximum operating currenbt of electromagnetic valve for braking HV1 coils.
When stopping in emergency when the electric current that solenoid valve HV1 coils flow through of stopping in emergency in its extinction current to maximum allowable
When between electric current, the present invention assert that the coil for the solenoid valve HV1 that stops in emergency is in normal operating conditions, and otherwise, identification promptly stops
Car Electromagnetic Valve Circuit breaks down.
The present invention assert that the output for the power supply DC1 that stops during the contact actuation (action) that can guarantee that first voltage type relay is
Normal output.
The parking power supply DC1 and stand-by power supply DC2 handoff procedures of a kind of above-described circuit that stops in emergency are as follows：
1) when stop power supply DC1 output for it is normal when, first voltage type relay coil KV11 obtain it is electric, first voltage type after
The contact action of electric appliance：
(1) the common port of first voltage type relay two-way contact KV12 and normally open end are connected, and parking power supply DC1 is to parking
Loop power supply；
(2) first voltage type relay normally closed contact KV13 is disconnected, and the 3rd malfunction indicator lamp MIL3 extinguishes；
2) when the power supply DC1 that stops fails, first voltage type relay coil KV11 dead electricity, first voltage type relay
Contact reverts to static state：
(1) the common port of first voltage type relay two-way contact KV12 is connected with normal-closed end, is switched to stand-by power supply
(DC2) to parking loop power supply；
(2) first voltage type relay normally closed contact KV13 is connected, and the 3rd malfunction indicator lamp MIL3 is lighted, and prompts user to stop
Car power supply DC1 fails；
3) stand-by power supply DC2 to parking loop power supply during, wait stop power supply DC1 output revert to normal when, first
Voltage-type relay coil KV11 obtains electric, the contact action of first voltage type relay：
(1) the common port of first voltage type relay two-way contact KV12 and normally open end are connected, recover parking power supply DC1 to
Stop loop power supply；
(2) first voltage type relay normally closed contact KV13 is disconnected, and the 3rd malfunction indicator lamp MIL3 lighted extinguishes.
Claims (10)
- The circuit 1. one kind is stopped in emergency, including parking power supply (DC1), stand-by power supply (DC2), alarm power supply (DC3), first voltage Type relay, second voltage type relay, tertiary voltage type relay, the 4th voltage-type relay, the first current relay, Second current relay, the solenoid valve that stops in emergency (HV1), spare solenoid valve (HV2), Fisrt fault indicator light (MIL1), Two malfunction indicator lamp (MIL2), the 3rd malfunction indicator lamp (MIL3), the 4th malfunction indicator lamp (MIL4), first switch module (K1), second switch module (K2), switching tube (100), diode (D1), diode (D2), diode (D3), diode D4, Diode D5, resistance R1, resistance R2, resistance R3, silicon-controlled (SCR)；It is characterized in that, the first voltage type relay coil (KV11) directly (DC1) and connect with parking power supply, cathode and the first voltage type relay two-way contact of parking power supply (DC1) (KV12) normally open end is connected, and the cathode of stand-by power supply (DC2) is normal with first voltage type relay two-way contact (KV12) Closed end is connected, and the anode of stand-by power supply (DC2) is connected with the anode of parking power supply (DC1)；First switch module (K1) One end of switch is connected with the common port of first voltage type relay two-way contact (KV12), and first switch module (K1's) opens The other end of pass be sequentially connected in series tertiary voltage type relay normally closed contact (KV33), the first current relay coil (KI11), Second current relay coil (KI21), the solenoid valve that stops in emergency (HV1) coil after with parking power supply (DC1) anode phase Connection, forms first parking circuit, first parking circuit is tight with parking power supply (DC1) or stand-by power supply (DC2) Emergency stop car Electromagnetic Valve Circuit；One end of the switch of second switch module (K2) and first voltage type relay two-way contact (KV12) Common port be connected, the other end of the switch of second switch module (K2) is sequentially connected in series the coil of spare solenoid valve (HV2), Anode of the two voltage-type relay normally open contacts (KV22) afterwards with parking power supply (DC1) is connected, with parking power supply (DC1) or standby Article 2 parking circuit is formed with power supply (DC2), the Article 2 parking circuit is the spare Electromagnetic Valve Circuit that stops in emergency；Resistance One end of R2 is connected with the common port of first voltage type relay two-way contact (KV12), the other end of resistance R2 and the second electricity One end of flow pattern relay normally open contact (KI22) is connected, the other end of the second current relay normally opened contact (KI22) with The control pole of one end of resistance R3 and silicon-controlled (SCR) are connected with each other, the cathode of the other end of resistance R3 and silicon-controlled (SCR), One end of tertiary voltage type relay coil (KV31) and one end of the 4th voltage-type relay normally open contact (KV42) are mutually simultaneously Connect, the other end of tertiary voltage type relay coil (KV31) is connected with the anode of parking power supply (DC1), the 4th voltage-type after The other end of electric appliance normally opened contact (KV42) is connected with the cathode of diode D5, the anode of diode D5 and the moon of diode D4 Pole is connected, and the anode of diode D4 is connected with the common port of first voltage type relay two-way contact (KV12), silicon-controlled (SCR) anode is connected with the common port of first voltage type relay two-way contact (KV12), with parking power supply (DC1) or standby Article 3 parking circuit is formed with power supply (DC2), and the Article 3 parking circuit solenoid valve overcurrent and first is opened to stop in emergency Close the switch failure fault control circuit of module；One end access second switch of first current relay normally-closed contact (KI12) On the switch of module (K2) and the connecting line of spare solenoid valve (HV2) coil, the first current relay normally-closed contact (KI12) The other end concatenation second voltage type relay coil (KV21) afterwards with parking power supply (DC1) anode be connected, with parking electricity Source (DC1) or stand-by power supply (DC2) form Article 4 parking circuit, and the Article 4 parking circuit is owed for the solenoid valve that stops in emergency Flow switching control circuit；One end of the 4th voltage-type relay coil (KV41) is connected with the anode of parking power supply (DC1) Connect, the other end is connected with the cold end of switching tube (100), and anode access first switch module (K1) of diode D1 is opened Close on the connecting line with tertiary voltage type relay normally closed contact (KV33), the cathode of diode D1 and the anode phase of diode D2 Connection, the cathode of diode D2 are connected with the hot end of switching tube (100), one end and the parking power supply (DC1) of resistance R1 Anode be connected, the other end of resistance R1 and the cathode of diode D3 and the control terminal that switching tube (100) is accessed after connecing, two poles On the switch of anode access second switch module (K2) and the connecting line of spare solenoid valve (HV2) coil of pipe D3, with parking electricity Source (DC1) or stand-by power supply (DC2) form Article 5 parking circuit, and the Article 5 parking circuit is first switch module (K1) Switch failure short-circuit detecting circuit；First voltage type relay normally closed contact (KV13) concatenates the 3rd malfunction indicator lamp (MIL3) (DC3) and connect with alarm power supply afterwards, parking power-fail alarm circuit is formed with alarm power supply (DC3)；Tertiary voltage type relay The common port of device two-way contact (KV32) is connected with the anode of alarm power supply (DC3), tertiary voltage type relay two-way contact (KV32) normally open end concatenates cathode of the second malfunction indicator lamp (MIL2) afterwards with alarm power supply (DC3) and is connected, with alarm electricity Source (DC3) forms stop in emergency solenoid valve overcurrent and switch failure alarm circuit；Tertiary voltage type relay two-way contact (KV34) normal-closed end concatenation Fisrt fault indicator light (MIL1), second voltage type relay normally open contact (KV23) afterwards with alarm The cathode of power supply (DC3) is connected, and the solenoid valve undercurrent alarm circuit that stops in emergency is formed with alarm power supply (DC3)；4th voltage Type relay normally open contact (KV43) concatenates the 4th malfunction indicator lamp (MIL4) and (DC3) and is connect with alarm power supply afterwards, with alarm electricity Source (DC3) forms the switch failure short-circuit alarming circuit of first switch module (K1)；The control of the first switch module (K1) It is connected after the control terminal of end and second switch module (K2) is connected with each other with the output of diesel engine main control module；The switching tube (100) it is p-type metal-oxide-semiconductor；Or the switching tube (100) is PNP type triode.
- The circuit 2. one kind according to claim 1 is stopped in emergency, it is characterised in that the first current relay coil (KI11) rated current is equal to the extinction current for solenoid valve (HV1) coil that stops in emergency；The second current mode relay The rated current of device coil (KI21) is equal to the maximum allowed current for solenoid valve (HV1) coil that stops in emergency.
- The circuit 3. one kind according to claim 1 is stopped in emergency, it is characterised in that the first voltage type relay is double To contact (KV12), second voltage type relay normally open contact (KV22), and tertiary voltage type relay normally closed contact (KV33) maximum current allowed to flow through is equal to or the rated current more than parking power supply (DC1).
- The circuit 4. one kind according to claim 2 is stopped in emergency, it is characterised in that the solenoid valve that stops in emergency (HV1) extinction current of coil be refer to guarantee stop in emergency solenoid valve (HV1) normal work minimum current.
- The circuit 5. one kind according to claim 2 is stopped in emergency, it is characterised in that the solenoid valve that stops in emergency (HV1) maximum allowed current of coil is to refer to guarantee to burn out the maximum functional of the solenoid valve that stops in emergency (HV1) coil Electric current.
- The circuit 6. one kind according to claim 1 is stopped in emergency, it is characterised in that the switching tube (100) is p-type During metal-oxide-semiconductor, the grid of p-type metal-oxide-semiconductor is the control terminal of switching tube (100), and the drain electrode of p-type metal-oxide-semiconductor is the low electricity of switching tube (100) Position end, the source electrode of p-type metal-oxide-semiconductor are the hot end of switching tube (100).
- The circuit 7. one kind according to claim 1 is stopped in emergency, it is characterised in that the switching tube (100) is positive-negative-positive During triode, the base stage of PNP type triode is the control terminal of switching tube (100), the current collection extremely switching tube of PNP type triode (100) cold end, the hot end of the transmitting extremely switching tube (100) of PNP type triode.
- The circuit 8. one kind according to claim 1 is stopped in emergency, it is characterised in that described diode D1, D2, D3, the D4 And D5 is switching diode.
- The circuit 9. one kind according to claim 1 is stopped in emergency, it is characterised in that the p-type metal-oxide-semiconductor increases for P-channel Strong type metal-oxide-semiconductor；The PNP type triode is positive-negative-positive switching transistor；The controllable silicon SCR is the pressure of itself after conducting It is reduced to the single-phase silicon-controlled of 1V or so.
- A kind of 10. implementation method of circuit that stops in emergency according to claims 1 to 3 any bar, it is characterised in that including Following steps:First, stop power supply (DC1) and stand-by power supply (DC2) handoff procedure1) when stop power supply (DC1) output for it is normal when, first voltage type relay coil (KV11) it is electric, first voltage type after The contact action of electric appliance：(1) the common port of first voltage type relay two-way contact (KV12) and normally open end are connected, and parking power supply (DC1) is to parking Loop power supply,(2) first voltage type relay normally closed contact (KV13) disconnects, and the 3rd malfunction indicator lamp (MIL3) is extinguished；2) when the power supply (DC1) that stops fails, first voltage type relay coil (KV11) dead electricity, first voltage type relay Contact reverts to static state：(1) the common port of first voltage type relay two-way contact (KV12) is connected with normal-closed end, is switched to stand-by power supply (DC2) To parking loop power supply,(2) first voltage type relay normally closed contact (KV13) is connected, and the 3rd malfunction indicator lamp (MIL3) is lighted, and prompts user to stop Car power supply (DC1) fails；3) stand-by power supply (DC2) to parking loop power supply during, wait stop power supply (DC1) output revert to normal when, first Voltage-type relay coil (KV11) obtains electric, the contact action of first voltage type relay：(1) the common port of first voltage type relay two-way contact (KV12) and normally open end are connected, recover parking power supply (DC1) to Stop loop power supply,(2) first voltage type relay normally closed contact (KV13) disconnects, and the 3rd malfunction indicator lamp (MIL3) lighted is extinguished；2nd, the process of stop in emergency solenoid valve (HV1) and spare solenoid valve (HV2) is controlled1) assert that second switch module (K2) is intact, first switch module (K1) quality is set to be unknown：When diesel engine main control module sends emergency shut-down control device signal to first switch module (K1) and second switch module (K2) Whether period, the switch connection of second switch module (K2), the switch of first switch module (K1) are connected to be unknown,When diesel engine main control module does not send emergency shut-down control device letter to first switch module (K1) and second switch module (K2) During number, second switch module (K2's) switches off, and it is unknown whether the switch of first switch module (K1) is broken as；2) when second switch module (K2) switch in an ON state, then switching tube (100) end, the 4th voltage-type relay Contact be in static state, the switch failure fault control circuit of stop in emergency solenoid valve overcurrent and first switch module is not produced Control signal, and the 4th malfunction indicator lamp (MIL4) is extinguishing；3) when the switch of second switch module (K2) is off, and the switch of first switch module (K1) is in and disconnects, Then switching tube (100) ends, and the contact of the 4th voltage-type relay is in static state, not to solenoid valve overcurrent and first of stopping in emergency The switch failure fault control circuit of switch module produces control signal, and the 4th malfunction indicator lamp (MIL4) is extinguishing；4) when the switch of second switch module (K2) is off, and the switch of first switch module (K1) is in and connects, Then switching tube (100) conducting saturation, the contact of the 4th voltage-type relay are in dynamic：(1) when the connection of the 4th voltage-type relay normally open contact (KV42), to solenoid valve overcurrent and the first switch module of stopping in emergency Switch failure fault control circuit produce control signal：1. silicon-controlled if (SCR) is in triggering and conducting, silicon-controlled (SCR) is kept to turn on, i.e. tertiary voltage type relay coil (KV31) remain powered on,2. silicon-controlled if (SCR) is in cut-off, tertiary voltage type relay coil (KV31) is led to by diode D4, D5 branch Electricity, and keep silicon-controlled (SCR) to end, until diode D4, D5 branch when the contact of the 4th voltage-type relay reverts to static state Road stops being powered to tertiary voltage type relay coil (KV31),(2) the 4th voltage-type relay normally open contact (KV43) is connected, and lights the 4th malfunction indicator lamp (MIL4), prompts user to exist The switch failure short circuit of first switch module (K1) during non-emergent parking；5) when the second current relay detects the maximum allowed current more than solenoid valve (HV1) coil that stops in emergency, the The contact of two current relay is in dynamic, i.e. the second current relay normally opened contact (KI22) is connected, and illustrates first The switch of switch module (K1) and the switch of second switch module (K2) are in on-state, and are made of resistance R2 and R3 tactile Power Generation Road produces trigger signal to silicon-controlled (SCR)：1. silicon-controlled if (SCR) is in the conduction state, silicon-controlled (SCR) is kept to turn on,2. silicon-controlled if (SCR) is in cut-off state, silicon-controlled (SCR) conducting is triggered；6) when the second current relay does not detect the maximum allowed current more than solenoid valve (HV1) coil that stops in emergency When, the contact of the second current relay is in static state, i.e. the second current relay normally opened contact (KI22) disconnects, by resistance R2 and R3 forms trigger circuit and does not produce trigger signal to silicon-controlled (SCR)；7) when silicon-controlled (SCR) is on or/and the 4th voltage-type relay normally open contact (KV42) is in and connects, the 3rd electricity Die mould relay coil (KV31) is powered, i.e., the contact of tertiary voltage type relay is in dynamic：(1) the tertiary voltage type relay normally closed contact (KV33) being serially connected in the Electromagnetic Valve Circuit that stops in emergency disconnects, to promptly stopping Car Electromagnetic Valve Circuit carries out physical break protection,(2) the common port of tertiary voltage type relay two-way contact (KV32) is connected with normally open end, lights the second malfunction indicator lamp (MIL2), prompting user stop in emergency solenoid valve (HV1) coil overcurrent or/and first switch module (K1) switch failure it is short Road：1. being lighted during the second malfunction indicator lamp (MIL2) is stopped in emergency in diesel engine, illustrate the solenoid valve (HV1) that stops in emergency Coil overcurrent,2. when the 4th malfunction indicator lamp (MIL4) is always maintained at OFF state, then, the second malfunction indicator lamp (MIL2) lighted, says The coil overcurrent of the bright solenoid valve that stops in emergency (HV1),3. when the second malfunction indicator lamp (MIL2) is lit during the non-emergent parking of diesel engine by extinguishing, at this time with the 4th failure Indicator light (MIL4) function is identical, that is, illustrates the switch failure short circuit of first switch module (K1),4. when the second malfunction indicator lamp (MIL2) is remain on during the non-emergent parking of diesel engine, and the 4th malfunction indicator lamp (MIL4) it is lit by extinguishing, then in the second malfunction indicator lamp (MIL2) lighted, both illustrates the solenoid valve (HV1) that stops in emergency Coil overcurrent, add bright first switch module (K1) switch failure short circuit；8) when second switch module (K2) switch in an ON state, the electric current of Electromagnetic Valve Circuit to be stopped in emergency is less than urgent During the extinction current of electromagnetic valve for braking (HV1) coil, the contact of the first current relay is in static state, the first current mode Relay normally closed contact (KI12) is connected, and second voltage type relay coil (KV21) must be electric, and second voltage type relay touches Point is in dynamic：(1) second voltage type relay normally open contact (KV22) is connected, and spare solenoid valve (HV2) obtains magnetic, and control diesel engine promptly stops Car,Second voltage type relay normally open contact (KV23) connect, when tertiary voltage type relay contact be in static state, i.e., The common port of tertiary voltage type relay two-way contact (KV32) is connected with normal-closed end, lights Fisrt fault indicator light (MIL1), Tertiary voltage type relay normally closed contact (KV33) is in during prompting user is stopped in emergency connect in the case of stop in emergency electricity The coil undercurrent of magnet valve (HV1),(3) when second voltage type relay normally open contact (KV23) is connected, when the contact of tertiary voltage type relay is in dynamic State, the i.e. common port of tertiary voltage type relay two-way contact (KV32) are disconnected with normal-closed end, Fisrt fault indicator light (MIL1) Extinguish；9) when the electric current for flowing through the solenoid valve that stops in emergency (HV1) coil is less than or equal to its maximum allowed current, more than or equal to it most During small maintenance electric current, the solenoid valve that stops in emergency (HV1) obtains magnetic, and control diesel engine stops in emergency；10) after silicon-controlled (SCR) is powered, wait to remove parking power supply (DC1) and stand-by power supply (DC2), silicon-controlled (SCR) is cut Only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711234119.5A CN107947343A (en) | 2017-11-30 | 2017-11-30 | One kind is stopped in emergency circuit and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711234119.5A CN107947343A (en) | 2017-11-30 | 2017-11-30 | One kind is stopped in emergency circuit and its implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107947343A true CN107947343A (en) | 2018-04-20 |
Family
ID=61947862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711234119.5A Pending CN107947343A (en) | 2017-11-30 | 2017-11-30 | One kind is stopped in emergency circuit and its implementation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107947343A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545479A (en) * | 2015-11-27 | 2016-05-04 | 江苏科技大学 | Failure alarm circuit for emergency stop solenoid valve loop of diesel engine and alarm method for failure alarm circuit |
-
2017
- 2017-11-30 CN CN201711234119.5A patent/CN107947343A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545479A (en) * | 2015-11-27 | 2016-05-04 | 江苏科技大学 | Failure alarm circuit for emergency stop solenoid valve loop of diesel engine and alarm method for failure alarm circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104597750B (en) | A kind of core relay failure detection and redundancy control system and control method | |
| CN107947345A (en) | A kind of vehicle-parking circuit and its implementation | |
| CN108023405A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method | |
| CN106338168B (en) | A kind of refrigeration unit control method and system | |
| CN108119252A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN105958437A (en) | Control circuit for achieving decompression tripping of circuit breaker through external loop | |
| CN107905894A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method | |
| CN107947343A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN108223170A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN108060986A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN107740728A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method | |
| CN108131208A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN108590867A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN107882646A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method | |
| CN108092396A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method | |
| CN107910949A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN107989696A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN108005806A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN107630753B (en) | Failure switching and alarming circuit and method for solenoid valve loop of diesel engine emergency stop | |
| CN108071504A (en) | One kind is stopped in emergency circuit and its implementation | |
| CN108223157A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN215180693U (en) | Fault alarm indicating circuit for limit switch of medium-voltage contactor | |
| CN108223171A (en) | A kind of diesel engine stops in emergency circuit and its implementation | |
| CN104237782A (en) | Starting relay durability system with safety protection and fault reminding functions and test method | |
| CN107905893A (en) | Diesel engine stops in emergency Electromagnetic Valve Circuit failover, warning circuit and its method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |