CN204003221U - A kind of bulldozer engine starts system - Google Patents
A kind of bulldozer engine starts system Download PDFInfo
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- CN204003221U CN204003221U CN201420498620.8U CN201420498620U CN204003221U CN 204003221 U CN204003221 U CN 204003221U CN 201420498620 U CN201420498620 U CN 201420498620U CN 204003221 U CN204003221 U CN 204003221U
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- 230000007935 neutral effect Effects 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 14
- 210000004899 c-terminal region Anatomy 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 2
- 238000013024 troubleshooting Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009183 running Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of bulldozer engine and start system, comprise key operation, battery relay, controller, storage battery, neutral switch, starting relay and starting motor, described key operation fire signal end, neutral switch neutral gear signal output part is connected with controller input end, described controller output end drives starting relay coil opened/closed, described starting relay drives starting motor opened/closed, described starting relay power end is all connected with storage battery by battery relay with starting motor power end, described controller input end is connected with engine electronic control unit ECU by CAN bus, described controller output end is also connected with display device.The utility model fully guarantee to start on safe basis, reduce existing startup system in the electrical part such as safety relay, reduce input and the maintenance cost of electrical system, improve troubleshooting efficiency.
Description
Technical field
The utility model relates to engine start technical field, relates in particular to a kind of bulldozer engine and starts system.
Background technique
The engine starting system of the engineering machinery such as bulldozer is comprised of storage battery 3, battery relay 2, starting motor 6, key operation 1, starting relay 5, safety relay 9, circuit etc., refers to Fig. 1 and starts principle sketch.Wherein the Main Function of safety relay 9 arranges in order to protect starting motor 6, and this relay is the relay of a normally closed job, and control signal is from generator.Safety relay 9 is controlled all the time starting motor 6 power supply lines and is disconnected in motor 7 operation process, even if operator's misoperation key operation 1 to starting shelves, can not cause starting motor 6 runnings yet, realizes protective action.This relay can also automatically disconnect and start power supply line when generator signal voltage reaches predetermined value in start-up course in addition, and safety completes the startup of motor 7, avoids long starting time of operator, infringement starting motor 6.This safety relay 9 is because of its special protective action, and the design of work cut-in voltage and technical stability require all very high, from industry market investigation, can determine, product manufacture and market are all very narrow, cause price up to 300 yuan of left and right.In addition, according to Fig. 1, can know, the startup system wire harness of bulldozer is complicated at present, electrical part is various, and cannot realize intelligent control and fault self-checking.When startup system breaks down, cause being difficult to starting while maybe can not start, need detect successively each circuit of startup system and element and whether go wrong.Based on above-mentioned comprehensive analysis, the actual functional capability of safety relay 9 drops into and is worth well below it, and the time-consuming effort of troubleshooting, so it is imperative to start the optimal design of security of system protection and maintenance.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of bulldozer engine to start system, fully guarantee to start on safe basis, reduce existing startup system in the electrical part such as safety relay, reduce input and the maintenance cost of electrical system, improve troubleshooting efficiency.
For solving the problems of the technologies described above, the utility model is taked following technological scheme:
A kind of bulldozer engine starts system, comprise key operation, battery relay, controller, storage battery, neutral switch, starting relay and starting motor, described key operation fire signal end, neutral switch neutral gear signal output part is connected with controller input end, described controller output end drives starting relay coil opened/closed, described starting relay drives starting motor opened/closed, described starting relay control end is all connected with storage battery by battery relay with starting motor B terminal, described controller input end is connected with engine electronic control unit ECU by CAN bus, described controller output end is also connected with display device.
The utility model utilizes the integrated self-checking function of controller, cancel the safety relay of original structure, by key operation fire signal, neutral gear signal, engine start locking signal access controller input end, controller output end drives starting relay coil opened/closed, thereby utilize the self-diagnostic function of the input of controller digital quantity, output to guarantee the Security of I/O, and then realize the condition monitoring to each actuating signal.
Further, key operation has six tenminal blocks: B1 terminal, B2 terminal, G1 terminal, G2 terminal, M terminal and S terminal, wherein B1, B2 share a terminal, B1 and B2 terminal are charged all the time, by safety fuse cutout, be connected with battery positive voltage, M terminal is to battery relay coil-end, and G1 terminal is not used, G2 terminal, i.e. fire signal end access controller input end.
Further, described battery relay control end one termination battery positive voltage, the B terminal of another termination starting relay control end and starting motor, the M terminal of battery relay coil-end one termination key operation, the other end ground connection; Described starting relay control end one termination battery relay control end, the C terminal of another termination starting motor, drives starting motor starting circuit, and coil-end one termination controller output end, drives its opened/closed by controller, the other end ground connection.
Further, controller is PLC programmable controller.
Further, display device is liquid crystal display.
Beneficial effect: advantage of the present utility model relates generally to three aspects, i.e. integrated control, signal self check; Optimization system, cost-saving; Carry Can network, data sharing.Compare with the system of engineering vehicle startup instantly, not only reduced electrical apparatus element (safety relay etc.) and wiring, reduced cost, and can make rate of fault reduce, troubleshooting is convenient, quick.
First aspect: integrated control, signal self check.Key operation fire signal, neutral gear signal, engine start locking signal and starting relay coil input signal are all accessed to intelligent controller, utilize the self-diagnostic function of the input of controller digital quantity, output to guarantee the Security of I/O, and then realize the condition monitoring to each actuating signal.
Second aspect: system simplification, cost-saving.Abundant assurance, start on safe basis, startup system is simplified, be about to start the safety relay cancellation of system architecture inside, safety relay signal detection line is cancelled, and neutral switch signal detection line is cancelled, and simplifies, realize electrical system sharpening, modularization.Effectively avoid the hidden danger of bringing because of faults such as safety relay contact adhesions, improved troubleshooting efficiency.
The third aspect: carry Can network, data sharing.In Engine ECU, controller, display device and comprise between the electric controling element of GPS terminal and carry Can network, realizes data sharing, detects in time, exactly and judge to start circuit effective status; Safety locking effective status; Actuating signal effective status; Motor effective operation state etc.
Accompanying drawing explanation
Fig. 1 is prior art engine starting system electrical schematic diagram.
The engine starting system electrical schematic diagram that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 2, a kind of bulldozer engine that the utility model provides starts system, comprises key operation 1, battery relay 2, controller 10, storage battery 3, neutral switch 4, starting relay 5 and starting motor 6.
Key operation 1 has six tenminal blocks: B1 terminal, B2 terminal, G1 terminal, G2 terminal, M terminal and S terminal, wherein B1, B2 share a terminal, B1 and B2 terminal are charged all the time, by safety fuse cutout 8, be connected with storage battery 3 is anodal, M terminal is to battery relay coil-end, G1 terminal is not used, G2 terminal access controller 10 input ends.
Battery relay 2 control end one termination storage battery 3 positive poles, the B terminal of another termination starting relay 5 control ends and starting motor 6, the M terminal of battery relay 2 coil-end one termination key operationes 1, the other end ground connection.Starting relay 5 control end one termination battery relay 2 control ends, the C terminal of another termination starting motor 6, drives starting motor 6 starting circuits, and coil-end one termination controller 10 output terminals drive its opened/closed, the other end ground connection by controller 10.
The utility model controller 10 input ends are connected with neutral switch 4, gather whether neutral switch 4 signals in neutral position of current gear; Controller 10 input ends are connected with engine electronic control unit ECU11 by CAN bus, gather engine electronic control unit ECU11 and start locking signal; Controller 10 output terminals are also connected with display device, send log-on message to display device, make driver can intuitively find out current starting state.
The utility model relates generally to five kinds of situations: 1. normally start; 2. start-up operation overlong time; 3. after normally starting, misoperation; 4. troubleshooting after starting unsuccessfully; 5. motor breaks down.Its working principle is as follows:
The utility model utilizes the integrated self-checking function of controller 10, cancel the safety relay 9 of original structure, by key operation 1 fire signal, neutral gear signal, engine start locking signal access controller 10 input ends, controller 10 output terminals drive starting relay 5 coil opened/closed, thereby utilize the self-diagnostic function of controller 10 digital quantity inputs, output to guarantee the Security of I/O, and then realize the condition monitoring to each actuating signal.Key operation 1 is screwed onto to ACC ON shelves, controller 10 detects neutral switch 4 signal conditions, key operation 1 is screwed onto to START shelves, detect simultaneously key operation 1 actuating signal effectively, neutral switch 4 signals are effective, engine start locking signal is invalid, and controller 10 is to starting relay 5 output starting relay 5 coil control signals, starter motor running, flywheel driven rotation, motor 7 starts.After motor 7 starts, controller 10 disconnects starting relay 5 output signals at once, starts complete.
Reach 10 seconds lasting starting time, and controller 10 disconnects starting relay 5 signal outputs automatically; Vehicle is in operation process, due to misoperations such as drivers, while causing repeated priming, controller 10, according to current travel condition of vehicle, is not controlled output to starting relay 5, avoids again starting, thereby protection Starter is avoided and the flywheel engagement of moving, and causes damage; Key is screwed onto to START shelves, and after starting unsuccessfully, controller 10, by each actuating signal input state of detection of dynamic, locks rapidly and accurately the source of failure, and by display device, is shown convenient for maintaining; After motor breaks down, controller 10 detects engine electronic control unit ECU11 and starts locking signal, display device shows engine failure information, simultaneously, prompting driver is sailed out of deathtrap by vehicle and is overhauled, and engine failure is not removed, while again starting vehicle, controller 10 initiatively disconnects starting relay 5 output signals, forbids opening car operation.Key is screwed onto to ACC ON shelves, and controller 10 detection system voltages, lower than 22V, forbid opening car operation.
Relational language is explained:
Key operation: the switch of ignition system (conventionally will use key), can freely open or close the main circuit of spark coil, be also applicable to other electric system circuit.
Starter: be again motor, it is mechanical energy by the electric energy conversion of storage battery, drives engine flywheel rotation to realize the startup of motor.
Safety relay: relay is a kind of electronic control device, it has control system (claim not only input circuit) and by control system (but also claiming output loop), conventionally be applied in automatic control circuit, it is actually a kind of " recloser " that removes to control larger electric current with less electric current.Safety relay can prevent the Starter operating time long or in machine working procedure false tripping.
Engine flywheel: be a kind of rotary member that there is suitable rotary inertia, plays storage and the effect of release kinetic energy.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a bulldozer engine starts system, it is characterized in that: comprise key operation (1), battery relay (2), controller (10), storage battery (3), neutral switch (4), starting relay (5) and starting motor (6), described key operation (1) fire signal end, neutral switch (4) neutral gear signal output part is connected with controller (10) input end, described controller (10) output terminal drives starting relay (5) coil opened/closed, described starting relay (5) drives starting motor (6) opened/closed, described starting relay (5) control end is all connected with storage battery (3) by battery relay (2) with starting motor (6) B terminal, described controller (10) input end is connected with engine electronic control unit ECU11 by CAN bus, described controller (10) output terminal is also connected with display device.
2. a kind of bulldozer engine according to claim 1 starts system, it is characterized in that: the M terminal of described key operation (1) is to the coil-end of battery relay (2), G2 terminal, i.e. fire signal end access controller (10) input end.
3. a kind of bulldozer engine according to claim 2 starts system, it is characterized in that: described B1 terminal, B2 terminal share a terminal, and B1 and B2 terminal are charged all the time, by safety fuse cutout (8) and storage battery (3) are anodal, is connected.
4. a kind of bulldozer engine according to claim 1 starts system, it is characterized in that: described battery relay (2) control end one termination storage battery (3) positive pole, the B terminal of another termination starting relay (5) control end and starting motor (6), the M terminal of battery relay (2) coil-end one termination key operation (1), the other end ground connection; Described starting relay (5) control end one termination battery relay (2) control end, the C terminal of another termination starting motor (6), drive starting motor (6) starting circuit, coil-end one termination controller (10) output terminal, by controller (10), drive its opened/closed, the other end ground connection.
5. a kind of bulldozer engine according to claim 1 starts system, it is characterized in that: described controller (10) is PLC programmable controller.
6. a kind of bulldozer engine according to claim 1 starts system, it is characterized in that: described display device is liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498620.8U CN204003221U (en) | 2014-09-01 | 2014-09-01 | A kind of bulldozer engine starts system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498620.8U CN204003221U (en) | 2014-09-01 | 2014-09-01 | A kind of bulldozer engine starts system |
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| CN204003221U true CN204003221U (en) | 2014-12-10 |
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| CN201420498620.8U Expired - Fee Related CN204003221U (en) | 2014-09-01 | 2014-09-01 | A kind of bulldozer engine starts system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318927A (en) * | 2019-07-02 | 2019-10-11 | 安徽合力股份有限公司 | A kind of starting control protective unit of diesel fork lift truck and its control guard method |
| CN116846153A (en) * | 2023-07-11 | 2023-10-03 | 深圳市西林电气技术有限公司 | Motor drive control device and control method |
-
2014
- 2014-09-01 CN CN201420498620.8U patent/CN204003221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318927A (en) * | 2019-07-02 | 2019-10-11 | 安徽合力股份有限公司 | A kind of starting control protective unit of diesel fork lift truck and its control guard method |
| CN116846153A (en) * | 2023-07-11 | 2023-10-03 | 深圳市西林电气技术有限公司 | Motor drive control device and control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |