CN209100148U - A kind of high revolving speed flame-out protection device of engine - Google Patents
A kind of high revolving speed flame-out protection device of engine Download PDFInfo
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- CN209100148U CN209100148U CN201821679220.1U CN201821679220U CN209100148U CN 209100148 U CN209100148 U CN 209100148U CN 201821679220 U CN201821679220 U CN 201821679220U CN 209100148 U CN209100148 U CN 209100148U
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- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of high revolving speed flame-out protection devices of engine, including power supply, complete machine controller, switch, relay, engine controller and the instrument for power supply；The power end of the complete machine controller is connected with the power supply, and data collection terminal is connected with one end of switch, and the other end of switch is connected with power supply, and the output end of complete machine controller is connected with the coil in relay；One end of the normally opened contact of the relay is connected with the power supply, and the other end of normally opened contact is connected with engine controller and instrument respectively；The engine controller with the oil spout oil circuit of engine for being connected, and power end is connected with the power supply, and data transmission terminal is connected with the data transmission terminal of complete machine controller；The data transmission terminal of the instrument is connected with the data transmission terminal of the complete machine controller.The utility model is stopped working to determine whether needing to reduce engine speed delay by the revolving speed of detection excavator engine when flame-out, to protect the turbocharger of engine, is prolonged the service life.
Description
Technical field
The utility model belongs to excavation electromechanical control field, and in particular to a kind of high revolving speed flame-out protection device of engine.
Background technique
The engine that excavator in the prior art carries be entirely with turbo charging installation, turbo charging installation
Need of work is pushed by the exhaust gas in exhaust pipe, and needs engine lubrication system to provide oil lubricating.Work as engine
When running at high speed, capacity is big, and also quickly, if digging machine stops working immediately, turbine is due to can also locate by inertia effects for secondary speed
In the state of high-speed rotation, but after digging machine is flame-out, engine lubrication system can also stop working immediately, therefore can not give whirlpool
Wheel provides oil lubricating, will result in turbine damage, needs replacing a turbo charging installation in many cases, to give client
Cause no small property loss.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of high revolving speed flame-out protection devices of engine, when complete machine controller
When detecting excavator misfire signals, if engine is in high-speed state, complete machine controller passes through instrument and reminds driver
It actively reduces engine speed or drop rotating speed command is enforced by complete machine controller, it is flame-out to be reduced to delay in engine speed
It completes to stop working again after defined revolving speed threshold values, to protect the turbo charging installation in engine, prolong the service life.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the utility model is achieved through the following technical solutions:
A kind of high revolving speed flame-out protection device of engine, including power supply, complete machine controller, the switch, relay for power supply
Device, engine controller and instrument；
The power end of the complete machine controller is connected with the power supply, one end phase of data collection terminal and the switch
Even, output end is connected with the coil in the relay, for controlling the on-off of the coil in relay；
The other end of the switch is connected with the power supply；
One end of the normally opened contact of the relay is connected with the power supply；
The power end of the engine controller is connected with the other end of the normally opened contact, data transmission terminal with it is described
The data transmission terminal of complete machine controller is connected, and output end controls the spray of engine for being connected with the oil spout oil circuit of engine
Oil circuit；
The data transmission terminal of the instrument is connected with the data transmission terminal of the complete machine controller, power end and it is described often
The other end for opening contact is connected.
Preferably, CAN bus is all made of between the instrument and engine controller and complete machine controller.
Preferably, the complete machine controller sends throttle signal to engine controller by CAN bus；The engine
Engine speed is sent to complete machine controller by CAN bus by controller.
Preferably, the instrument is keyboard instrument or touch-screen display, and built-in buzzer.
Preferably, the switch is key switch, and the complete machine controller acquires powering on or powering off for the switch in real time
Signal；The complete machine controller is waken up by the power on signal switched, and after complete machine controller is waken up, complete machine controller enters work
Make state.
Preferably, the power supply of the engine controller includes system power supply and power power-supply, the system power supply
Power end be connected with the power supply；The power end of the power power-supply is connected with the other end of the normally opened contact, the function
The output end of rate power supply controls the oil spout oil circuit of engine for being connected with the oil spout circuit of engine.
Preferably, when the normally opened contact of relay closure, engine controller is connected with the power supply circuit of instrument.
A kind of control method of the high revolving speed flame-out protection device of engine, comprising:
When engine is in operating status, the signal of complete machine controller acquisition switch and the revolving speed of present engine；
If complete machine controller collects switch in open position, and the revolving speed of present engine is higher than engine delay
Revolving speed threshold values as defined in flame-out, then complete machine controller reminds driver actively to reduce engine speed or compulsory execution by instrument
Rotating speed command drops；
After engine speed is reduced to the flame-out defined revolving speed threshold values of delay, complete machine controller block system relay, thus
Engine controller power supply circuit disconnects, and the oil spout oil circuit of engine disconnects, engine misses.
Preferably, if complete machine controller collects switch in open position, and present engine revolving speed be less than or
Revolving speed threshold values as defined in flame-out equal to engine delay, then the output end of complete machine controller exports hanging signal, in relay
The normally opened contact of coil blackout, relay disconnects, and the power supply circuit of engine controller disconnects, and the oil spout oil circuit of engine is disconnected
It opens, engine misses.
Preferably, rotating speed command drops in the compulsory execution specifically: complete machine controller is directly turned throttle down instruction and sent
To engine controller, the revolving speed of engine is adjusted using engine controller；The driver actively reduces engine speed
Specifically: driver adjusts the revolving speed of engine by manually adjusting grip position.
Compared with prior art, the utility model has the beneficial effects that
The utility model proposes a kind of high revolving speed flame-out protection device of engine and control methods, when complete machine controller detects
When to excavator misfire signals, if engine is in high-speed state, complete machine controller passes through instrument and reminds driver actively
It reduces engine speed or drop rotating speed command is enforced by complete machine controller, be reduced to the flame-out regulation of delay in engine speed
Revolving speed threshold values after complete to stop working again, to protect the turbo charging installation in engine, prolong the service life.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of embodiment of the utility model；
In figure:
1- complete machine controller, 2- switch, 3- relay, 4- engine controller, 5- instrument.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
The application principle of the utility model is explained in detail with reference to the accompanying drawing.
Embodiment 1
A kind of high revolving speed flame-out protection device of engine is provided in the utility model embodiment, including the electricity for power supply
Source, complete machine controller 1, switch 2, relay 3, engine controller 4 and instrument 5；
What the complete machine controller 1 was connected with excavator in actual application, for controlling excavator, power end
It is connected with the power supply, it is preferable that its power end is connected by safety plate with the power supply；Its data collection terminal and the switch
2 wherein one end is connected, and output end is connected with the coil in the relay 3, for controlling the logical of the coil in relay 3
It is disconnected；The power supply for power supply can select the DC power supply of 24V；
The other end of the switch 2 is connected with the power supply, it is preferable that the other end of the switch 2 by safety plate with
The power supply is connected；In the preferred embodiment of the present embodiment, the switch 2 is key switch 2.The complete machine controller 1
Acquire the switch 2 power on or power-off signal, by switch 2 power on signal wake up, it is whole after complete machine controller 1 is waken up
Machine controller 1 enters working condition；
One end of the normally opened contact of the relay 3 is connected with the power supply；Preferably, the normally opened contact passes through respectively
Safety plate is connected with engine controller 4 and instrument 5；
The power end of the engine controller 4 is connected with the other end of the normally opened contact, data transmission terminal with it is whole
The data transmission terminal of machine controller 1 is connected, and output end controls the oil spout of engine for being connected with the oil spout oil circuit of engine
Oil circuit；In the preferred embodiment of the utility model embodiment, adopted between the engine controller 4 and complete machine controller 1
It is connected with CAN bus；The complete machine controller 1 sends throttle signal to engine controller 4 by CAN bus；It is described to start
Engine speed is sent to complete machine controller 1 by CAN bus by machine controller 4；In a kind of tool of the utility model embodiment
In body embodiment, the power supply of the engine controller 4 includes system power supply and power power-supply, the system power supply
Power end is connected with the power supply；The power end of the power power-supply is connected with the other end of the normally opened contact, the power
The output end of power supply controls the oil spout oil circuit of engine for being connected with the oil spout circuit of engine；
The data transmission terminal of the instrument 5 is connected with the data transmission terminal of the complete machine controller 1；In the utility model reality
It applies in the preferred embodiment of example, is connected between the instrument 5 and complete machine controller 1 using CAN bus；The instrument 5 is key
Disk instrument 5 or touch-screen display, and built-in buzzer.
It is retouched in conjunction with the detailed process that attached drawing 1 carries out the high revolving speed flame-out protection device of engine in the utility model embodiment
It states:
Switch 2 (preferably key switch) is at the position " ON ", i.e., upper electric position, the DI1 port processing of complete machine controller 1
To high level signal, complete machine controller 1 is waken up at this time, and the port DO1 of complete machine controller 1 persistently exports high level signal, after
Coil in electric appliance 3 is powered, and the normally opened contact closure of relay 3, engine controller 4 is connected with the power supply circuit of instrument 5, sent out
Motivation controller 4 and instrument 5 work, and the oil spout oil circuit of engine is connected, at this point, key switch gets to the position " START ", complete
The starting of engine.Meanwhile the real-time revolving speed of engine is sent to complete machine controller by CAN bus by engine controller 4
1。
Switch 2 (preferably key switch) at the position " OFF ", believe to hanging by the DI1 port processing of complete machine controller 1
Number, while complete machine controller 1 judges whether present engine revolving speed is higher than the flame-out defined revolving speed threshold values of engine delay；If
Present engine revolving speed is less than or equal to the flame-out defined revolving speed threshold values of engine delay, then the port DO1 of complete machine controller 1 is defeated
The normally opened contact of hanging signal out, the coil blackout of relay 3, relay 3 disconnects, thus the power supply electricity of engine controller 4
Road disconnects, and the oil spout oil circuit of engine disconnects, engine misses；If present engine revolving speed is greater than the flame-out rule of engine delay
Fixed revolving speed threshold values, complete machine controller 1 are sent to instrument 5,5 main interface of instrument for accelerator gear information is lowered by CAN bus
Pop up prompting message, it is desirable that throttle is adjusted downward to minimum gear by driver, while 5 built-in buzzer of instrument continues ring, at this time
Complete machine controller 1 starts timing, if complete machine controller 1 receives in 5 seconds is in minimum by the throttle that grip issues
The signal of gear, then throttle minimum gear signal is converted into accelerator open degree value by complete machine controller 1 or tachometer value passes through CAN bus
It is sent to engine controller 4, the distributive value adjustment engine speed that engine controller 4 controls oil spout oil circuit is minimized shelves
Position revolving speed, meanwhile, the port DO1 of complete machine controller 1 exports hanging signal, the coil blackout of relay 3, relay 3 after 10 seconds
Normally opened contact disconnect, so that engine controller 4 and the power supply circuit of instrument 5 disconnect, the oil spout oil circuit of engine is disconnected, hair
Motivation is flame-out, and instrument does not work, and buzzer is not rung.If complete machine controller 1 is not received by throttle minimum gear in 5 seconds
Signal, then the information stopped working after engine 10S is sent to instrument 5,5 main interface of instrument by CAN bus by complete machine controller 1
Prompting message is popped up, while throttle minimum gear signal is converted into accelerator open degree value with complete machine controller 1 or tachometer value passes through CAN
Bus is sent to engine controller 4, and the distributive value adjustment engine speed that engine controller 4 controls oil spout oil circuit drops to most
Small gear revolving speed, meanwhile, the port DO1 of complete machine controller 1 exports hanging signal, the coil blackout of relay 3, power supply after 10 seconds
The normally opened contact of relay 3 disconnects, so that engine controller 4 and the power supply circuit of instrument 5 disconnect, the oil spout oil circuit of engine
It disconnects, engine misses, instrument does not work, and buzzer is not rung.
Embodiment 2
Conceived based on utility model same as Example 1, it is high that a kind of engine is provided in the utility model embodiment
The control method of revolving speed flame-out protection device, comprising:
When engine is in operating status, the signal of the acquisition switch of complete machine controller 1 and the revolving speed of present engine；
If complete machine controller 1 collects switch 2 and is in the position " OFF ", i.e. de-energized, and the revolving speed of present engine
Revolving speed threshold values as defined in flame-out higher than engine delay, then complete machine controller 1 is reminded driver actively to reduce and is started by instrument 5
Machine revolving speed enforces drop rotating speed command；In the preferred embodiment of the present embodiment, rotating speed command drops in the compulsory execution
Specifically: complete machine controller 1 directly turns throttle down instruction and is sent to engine controller 4, is adjusted using engine controller
The revolving speed of engine；The driver actively reduces engine speed specifically: driver is by manually adjusting grip position
It sets to adjust the revolving speed of engine；More specifically:
Engine speed be reduced to delay it is flame-out as defined in after revolving speed threshold values, complete machine controller 1 is cut off the power relay
Circuit, so that 4 power supply circuit of engine controller disconnects, the oil spout oil circuit of engine is disconnected, engine misses.
If complete machine controller 1 collects switch 2 and is in the position " OFF ", and present engine revolving speed is less than or equal to
Revolving speed threshold values as defined in engine delay is flame-out, then the output end of complete machine controller 1 exports hanging signal, the line in relay 3
The normally opened contact of circle power-off, relay 3 disconnects, and the power supply circuit of engine controller 4 disconnects, and the oil spout oil circuit of engine is disconnected
It opens, engine misses.
Method in the utility model embodiment can be applied in the device in embodiment 1.
More specifically, the control method of the high revolving speed flame-out protection device of engine, comprising:
When engine is run, the signal of complete machine controller acquisition switch and the revolving speed of present engine；
Switch 2 (preferably key switch) at the position " ON ", believe to high level by the DI1 port processing of complete machine controller 1
Number, complete machine controller 1 is waken up at this time, and the port DO1 of complete machine controller 1 persistently exports high level signal, the line in relay 3
Circle is powered, and the normally opened contact closure of relay 3, engine controller 4 is connected with the power supply circuit of instrument 5, engine controller 4
It works with instrument 5, the oil spout oil circuit of engine is connected, at this point, key switch gets to the position " START ", completes opening for engine
It is dynamic.Meanwhile the real-time revolving speed of engine is sent to complete machine controller 1 by CAN bus by engine controller 4.
Switch 2 (preferably key switch) at the position " OFF ", believe to hanging by the DI1 port processing of complete machine controller 1
Number, while complete machine controller 1 judges whether present engine revolving speed is higher than the flame-out defined revolving speed threshold values of engine delay.If
Present engine revolving speed is less than or equal to the flame-out defined revolving speed threshold values of engine delay, then the port DO1 of complete machine controller 1 is defeated
The normally opened contact of hanging signal out, the coil blackout of relay 3, relay 3 disconnects, thus the power supply electricity of engine controller 4
Road disconnects, and the oil spout oil circuit of engine disconnects, engine misses；If present engine revolving speed is greater than the flame-out rule of engine delay
Fixed revolving speed threshold values, complete machine controller 1 are sent to instrument 5,5 main interface of instrument for accelerator gear information is lowered by CAN bus
Pop up prompting message, it is desirable that throttle is adjusted downward to minimum gear by driver, while 5 built-in buzzer of instrument continues ring, at this time
Complete machine controller 1 starts timing, if complete machine controller 1 receives in 5 seconds is in minimum by the throttle that grip issues
The signal of gear, then throttle minimum gear signal is converted into accelerator open degree value by complete machine controller 1 or tachometer value passes through CAN bus
It is sent to engine controller 4, the distributive value adjustment engine speed that engine controller 4 controls oil spout oil circuit is minimized shelves
Position revolving speed, meanwhile, the port DO1 of complete machine controller 1 exports hanging signal, the coil blackout of relay 3, relay 3 after 10 seconds
Normally opened contact disconnect, so that engine controller 4 and the power supply circuit of instrument 5 disconnect, the oil spout oil circuit of engine is disconnected, hair
Motivation is flame-out, and instrument does not work, and buzzer is not rung.If complete machine controller 1 is not received by throttle minimum gear in 5 seconds
Signal, then the information stopped working after engine 10S is sent to instrument 5,5 main interface of instrument by CAN bus by complete machine controller 1
Prompting message is popped up, while throttle minimum gear signal is converted into accelerator open degree value with complete machine controller 1 or tachometer value passes through CAN
Bus is sent to engine controller 4, and the distributive value adjustment engine speed that engine controller 4 controls oil spout oil circuit drops to most
Small gear revolving speed, meanwhile, the port DO1 of complete machine controller 1 exports hanging signal, the coil blackout of relay 3, power supply after 10 seconds
The normally opened contact of relay 3 disconnects, so that engine controller 4 and the power supply circuit of instrument 5 disconnect, the oil spout oil circuit of engine
It disconnects, engine misses, instrument does not work, and buzzer is not rung.
In summary:
The utility model proposes a kind of high revolving speed flame-out protection device of engine and control methods, when complete machine controller detects
When to excavator misfire signals, if engine is in high-speed state, complete machine controller passes through instrument and reminds driver actively
It reduces engine speed or drop rotating speed command is enforced by complete machine controller, be reduced to the flame-out regulation of delay in engine speed
Revolving speed threshold values after complete to stop working again, to protect the turbo charging installation in engine, prolong the service life.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of high revolving speed flame-out protection device of engine, it is characterised in that: including for power supply power supply, complete machine controller,
Switch, relay, engine controller and instrument；
The power end of the complete machine controller is connected with the power supply, and data collection terminal is connected with one end of the switch,
Output end is connected with the coil in the relay, for controlling the on-off of the coil in relay；
The other end of the switch is connected with the power supply；
One end of the normally opened contact of the relay is connected with the power supply；
The power end of the engine controller is connected with the other end of the normally opened contact, data transmission terminal and the complete machine
The data transmission terminal of controller is connected, and output end controls the oil spout oil of engine for being connected with the oil spout oil circuit of engine
Road；
The data transmission terminal of the instrument is connected with the data transmission terminal of the complete machine controller, power end and the normally opened touching
The other end of point is connected.
2. the high revolving speed flame-out protection device of a kind of engine according to claim 1, it is characterised in that: the instrument and hair
CAN bus is all made of between motivation controller and complete machine controller.
3. the high revolving speed flame-out protection device of a kind of engine according to claim 2, it is characterised in that: the complete machine control
Device sends throttle signal to engine controller by CAN bus；The engine controller is turned engine by CAN bus
Speed is sent to complete machine controller.
4. the high revolving speed flame-out protection device of a kind of engine according to claim 1, it is characterised in that: the instrument is key
Disk instrument or touch-screen display, and built-in buzzer.
5. the high revolving speed flame-out protection device of a kind of engine according to claim 1, it is characterised in that: the switch is key
Spoon switch, the complete machine controller acquire in real time the switch power on or power-off signal；The complete machine controller is by switching
Power on signal wakes up, and after complete machine controller is waken up, complete machine controller enters working condition.
6. the high revolving speed flame-out protection device of a kind of engine according to claim 1, it is characterised in that: the engine control
The power supply of device processed includes system power supply and power power-supply, and the power end of the system power supply is connected with the power supply；It is described
The power end of power power-supply is connected with the other end of the normally opened contact, and the output end of the power power-supply is used for and engine
Oil spout circuit is connected, and controls the oil spout oil circuit of engine.
7. the high revolving speed flame-out protection device of a kind of engine according to claim 1, it is characterised in that: normal when relay
When opening contact closure, engine controller is connected with the power supply circuit of instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821679220.1U CN209100148U (en) | 2018-10-17 | 2018-10-17 | A kind of high revolving speed flame-out protection device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821679220.1U CN209100148U (en) | 2018-10-17 | 2018-10-17 | A kind of high revolving speed flame-out protection device of engine |
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| Publication Number | Publication Date |
|---|---|
| CN209100148U true CN209100148U (en) | 2019-07-12 |
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ID=67155361
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821679220.1U Active CN209100148U (en) | 2018-10-17 | 2018-10-17 | A kind of high revolving speed flame-out protection device of engine |
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| CN (1) | CN209100148U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464287A (en) * | 2021-07-16 | 2021-10-01 | 潍柴雷沃重工股份有限公司 | Method and system for protecting engine and agricultural machine comprising engine |
| CN115013215A (en) * | 2022-06-28 | 2022-09-06 | 徐州徐工矿业机械有限公司 | High and cold area multifunctional heating system for engineering machinery and automatic control method thereof |
-
2018
- 2018-10-17 CN CN201821679220.1U patent/CN209100148U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464287A (en) * | 2021-07-16 | 2021-10-01 | 潍柴雷沃重工股份有限公司 | Method and system for protecting engine and agricultural machine comprising engine |
| CN115013215A (en) * | 2022-06-28 | 2022-09-06 | 徐州徐工矿业机械有限公司 | High and cold area multifunctional heating system for engineering machinery and automatic control method thereof |
| CN115013215B (en) * | 2022-06-28 | 2024-06-21 | 徐州徐工矿业机械有限公司 | Multifunctional heating system for engineering machinery in alpine region and automatic control method thereof |
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