CN201835925U - Combined type control system of electronic control accelerator on crawler crane - Google Patents
Combined type control system of electronic control accelerator on crawler crane Download PDFInfo
- Publication number
- CN201835925U CN201835925U CN201020592447XU CN201020592447U CN201835925U CN 201835925 U CN201835925 U CN 201835925U CN 201020592447X U CN201020592447X U CN 201020592447XU CN 201020592447 U CN201020592447 U CN 201020592447U CN 201835925 U CN201835925 U CN 201835925U
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- throttle
- combined type
- control system
- crawler crane
- electricity
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a combined type control system of an electronic control accelerator on a crawler crane. Output signals of a manual accelerator and an electronic foot accelerator are connected with two analog signal input ends of a comparison unit for outputting the signal with greater value of two signals, and the output end of the comparison unit is connected with the control end of a mechanical accelerator motor or the control end of an electronic fuel injection accelerator. The combined type control system of the electronic control accelerator on the crawler crane is convenient and practical, has energy-saving effect and can provide operation safety performance.
Description
Technical field
The utility model belongs to the automatically controlled field of engineering machinery, relates to the electricity-controlling throttle combined type control system on a kind of crawler crane.
Technical background
Engine throttle control system on the existing crawler crane mainly contains mechanical type control and electronic type control dual mode.Wherein, mechanical type control promptly directly spurs engine throttle by throttle control handle by throttle flexible axle (claiming acceleration cable again).Electronic type control is promptly controlled throttle actuator by electronic throttle sensor by voltage or current signal, and throttle actuator is controlled engine throttle again.Latter's extensive use on large-scale engineering machinery.In the application of E-Gas, existing crawler crane only relies on single manual accelerator control to carry out Throttle Opening Control, when facing the operating mode that needs frequent change engine output, operator needs the frequent position of adjusting manual accelerator control, cause taking sb's mind off sth, tired operation etc., have potential safety hazard.
The model utility content
Technical problem to be solved in the utility model is the electricity-controlling throttle combined type control system that proposes on a kind of crawler crane, and the electricity-controlling throttle combined type control system on this crawler crane is convenient and practical, has energy-saving effect, and the handling safety performance can be provided.
Technical solution of the present utility model is as follows:
Electricity-controlling throttle combined type control system on a kind of crawler crane, the output terminal of manual accelerator control and electronics foot throttle joins the control end of the output termination throttle electric machine actuating mechanism of comparer with 2 input end of analog signal of the comparer that is used to export higher value.
The structure of described comparer is: 2 input end of analog signal join by analog sampling circuit and A/D change-over circuit and programming device successively, have a comparing unit that is used for selecting from 2 input values a higher value in programming device, the output terminal of programming device connects the output terminal of comparer by power driving circuit.
Described throttle electric machine actuating mechanism is mechanical type throttle motor or EFI formula throttle Engine ECU.
Described programming device is single-chip microcomputer or FPGA.
The A/D change-over circuit also is connected with voltage reference circuit.
Voltage or current type electronics manual accelerator control and electronics foot throttle are installed respectively on crawler crane.It is the comparer of core with programming devices such as single-chip microcomputer or FPGA that the analogue signal of two throttle sensors inserts one by electric wire, the input end of comparer joins by analog sampling circuit and A/D change-over circuit and programming device successively, design a comparing unit that is used for selecting from 2 input values a higher value and output by programming in programming device, the output terminal of programming device connects the output terminal of comparer by power driving circuit.The signal of comparer output terminal output promptly can be used for driving throttle actuator (throttle motor or Engine ECU).
Beneficial effect:
The utlity model has following technique effect:
1. because throttle is carried out from motion tracking, therefore, can be suitable for various situations, effectively improve the flexibility of crane engine power output control, better adapt to various operating modes.
2. throttle is set to idling mode to reduce oil consumption when attonity.Effectively improved fuel economy.
3. because the automaticity of the electricity-controlling throttle combined type control system on this crawler crane is higher, effectively reduce the workload of operator, made it be absorbed in lifting operation more, reduced accident potential.
Adopt electricity-controlling throttle combined type control system, use the manual accelerator control and the foot throttle that resets certainly of band self-locking to carry out the compound speed governing of motor, the constant speed drive of realization motor that can be convenient, flexible, changed speed operation and auto idle speed function, improve the flexibility of engine oil gate control, also reduced the fatigue strength of operator steer.
Description of drawings
Fig. 1 is the schematic diagram of this E-Gas compound control system;
Fig. 2 is the schematic diagram of comparer in the utility model.
Embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details:
Embodiment 1:
As Fig. 1, present embodiment is to install electronics foot throttle 3 additional to form on the basis of the manual accelerator control 2 of traditional crawler crane.Two kinds of throttle controls all are connected in the comparer 1, and comparer is through calculation process, follow the tracks of and the signal of output is bigger one of corresponding accelerator open degree in manual accelerator control 2 and the electronics foot throttle 3 two-way input signals.
This signal is input in the throttle actuator by signal cable 7.
For electricity-controlling throttle actuator, the controlling method of mechanical type throttle is for to spur engine throttle by throttle motor 5 and acceleration cable 6.Throttle motor 5 is stepper motor or actuating motor, can receive the signal of comparer 1 output and adjust motor range according to this signal, thus the control engine throttle.Throttle motor 5 can be installed near motor and the position of being convenient to safeguard.
For present application electric-control motor widely gradually, its throttle is by EFI formula throttle 4 (being Engine ECU) control, and the output signal of comparer 1 then directly inserts the Engine ECU corresponding ports in the utility model when control electric-control motor throttle.Mechanical type throttle and electricity-controlling throttle generally can not occur on an equipment simultaneously, both are " or " relation, this combined type system is applicable to these two kinds no throttle driving mode, and difference is the last actuator's difference (mechanical type is the throttle motor, and the EFI formula is an Engine ECU) that connects
The principle of comparer as shown in Figure 2, comparer receives the analogue signal that foot throttle and manual accelerator control are exported, the two-way analogue signal is directly sent in the analog sampling circuit of this device, it mainly is to provide stable, safe analogue signal for post-processed.Subsequently, the two-way analogue signal being sent into the A/D change-over circuit, is analog signal conversion the required digital signal of programmable system, and programmable system can be programming devices such as single-chip microcomputer or FPGA.Two ways of digital signals compares processing by the programmable system internal processes, and output quantity is that numerical value is bigger and follow the road signal that its input quantity changes all the time.This signal ingoing power drive circuit, thus final output can be controlled the control signal of throttle actuator.
In addition, power circuit provides power supply for the entire circuit system and powers to external sensor.Voltage reference circuit can provide stable benchmark voltage for the A/D change-over circuit under the situation of power supply fluctuation, thereby improves the precision of collection of simulant signal.
Manual accelerator control that native system comprises and foot throttle can use separately or unite and be used alternatingly.For example, behind engine start, rotating speed is decided to be the oil consumption power ratio optimum speed of 1500-1800rpm, can improves engine speed flexibly to improve engine output by foot throttle in actual use subsequently with manual accelerator control.Also can when long-time lifting operation, manual accelerator control be fixed on high speed position, avoid trampling gas pedal always and cause fatigue.If manual accelerator control is set in idling mode, the auto idle speed function in the time of then can realizing not trampling gas pedal.The whole system flexibility and reliability.
Claims (5)
1. the electricity-controlling throttle combined type control system on the crawler crane, it is characterized in that, the output terminal of manual accelerator control and electronics foot throttle joins the control end of the output termination throttle electric machine actuating mechanism of comparer with 2 input end of analog signal of the comparer that is used to export higher value.
2. the electricity-controlling throttle combined type control system on the crawler crane according to claim 1, it is characterized in that, the structure of described comparer is: 2 input end of analog signal join by analog sampling circuit and A/D change-over circuit and programming device successively, have a comparing unit that is used for selecting from 2 input values a higher value in programming device, the output terminal of programming device connects the output terminal of comparer by power driving circuit.
3. the electricity-controlling throttle combined type control system on the crawler crane according to claim 1 is characterized in that, described throttle electric machine actuating mechanism is mechanical type throttle motor or EFI formula throttle Engine ECU.
4. the electricity-controlling throttle combined type control system on the crawler crane according to claim 2 is characterized in that described programming device is single-chip microcomputer or FPGA.
5. according to the electricity-controlling throttle combined type control system on the right 2 described crawler cranes, it is characterized in that the A/D change-over circuit also is connected with voltage reference circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020592447XU CN201835925U (en) | 2010-11-04 | 2010-11-04 | Combined type control system of electronic control accelerator on crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020592447XU CN201835925U (en) | 2010-11-04 | 2010-11-04 | Combined type control system of electronic control accelerator on crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835925U true CN201835925U (en) | 2011-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020592447XU Expired - Fee Related CN201835925U (en) | 2010-11-04 | 2010-11-04 | Combined type control system of electronic control accelerator on crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835925U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616664A (en) * | 2012-03-22 | 2012-08-01 | 三一汽车起重机械有限公司 | Linkage device and engineering machinery |
| CN104632428A (en) * | 2013-11-22 | 2015-05-20 | 广西柳工机械股份有限公司 | Control method for engineering machinery engine throttle |
| CN108087129A (en) * | 2017-12-13 | 2018-05-29 | 天津雷沃发动机有限公司 | The throttle control system and control method of electric-control motor |
| CN110670663A (en) * | 2019-10-31 | 2020-01-10 | 徐工集团工程机械股份有限公司科技分公司 | Electronic double-throttle system of skid steer loader |
-
2010
- 2010-11-04 CN CN201020592447XU patent/CN201835925U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616664A (en) * | 2012-03-22 | 2012-08-01 | 三一汽车起重机械有限公司 | Linkage device and engineering machinery |
| CN104632428A (en) * | 2013-11-22 | 2015-05-20 | 广西柳工机械股份有限公司 | Control method for engineering machinery engine throttle |
| CN108087129A (en) * | 2017-12-13 | 2018-05-29 | 天津雷沃发动机有限公司 | The throttle control system and control method of electric-control motor |
| CN110670663A (en) * | 2019-10-31 | 2020-01-10 | 徐工集团工程机械股份有限公司科技分公司 | Electronic double-throttle system of skid steer loader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110518 Termination date: 20141104 |
|
| EXPY | Termination of patent right or utility model |