CN201747467U - Control device for accelerating to prevent flameout at idling speed - Google Patents
Control device for accelerating to prevent flameout at idling speed Download PDFInfo
- Publication number
- CN201747467U CN201747467U CN 201020243126 CN201020243126U CN201747467U CN 201747467 U CN201747467 U CN 201747467U CN 201020243126 CN201020243126 CN 201020243126 CN 201020243126 U CN201020243126 U CN 201020243126U CN 201747467 U CN201747467 U CN 201747467U
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- ttc
- main controller
- master controller
- terminal
- engine
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- Expired - Fee Related
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Abstract
The utility model discloses a control device for accelerating to prevent flameout in low speed or idle speed, which comprises a TTC main controller and a rotation speed sensor. The power supply terminal of the TTC main controller is connected with a vehicle power supply; the earth terminal of the TTC main controller is connected with a frame; the control terminal of the TTC main controller is connected with an accelerator knob; the input terminal of the TTC main controller is connected with the rotation speed sensor; the output terminal of the TTC main controller is connected with a linear motor; the linear motor is connected with an engine through a flexible shaft; and the pressure terminal of the TTC main controller is connected with a pressure switch. When heavy load operation is carried out, a hydraulic pilot handle is operated, relevant signals can be detected through the TTC main controller, then operation is carried out to drive the linear motor to act, the rotating speed of the engine is properly increased, and the output power of the engine can be increased accordingly, so that the required absorption power of an oil pump under certain load is satisfied. The device can automatically realize the function of flameout prevention in low speed or idle speed, and is mainly used for electrical systems in engineering machinery.
Description
Technical field
The low idling that the utility model relates in the electric system of a kind of engineering machinery quickens to prevent flame-out control gear.
Background technique
At present, in the engineering machinery hydraulic transmission system, engine output (moment of torsion) and oil pump power demand (moment of torsion) power match, when engine speed is in minimum unloaded idling (the unloaded idling of diesel engine is greatly about about 800rpm～1000rpm), generally can not be with and carry operation (heavy load) operation, start the function proper functioning, can not cause flame-out.But sometimes, when engine speed is in minimum zero load when idle, operator are under the situation of not opening the throttle, increase engine speed, when operation hydraulic pilot handle carries out the heavy load operation, tend to because the unexpected increase of load, the power (oil pump power demand) that needs when the power that motor is exported at this moment might be less than operation, motor can be suppressed flame-out, causes the machine can't proper functioning.
Summary of the invention
The purpose of this utility model provides a kind of low idling and quickens to prevent flame-out control gear, this control gear can prevent motor minimum suppress when idle flame-out.
For achieving the above object, the technical solution of the utility model is: this control gear comprises special-purpose TTC master controller of engineering machinery and speed probe, the power end of TTC master controller is connected with power supply on vehicle, the termination vehicle frame ground, ground of TTC master controller, the control end of TTC master controller is connected with grip, the input end of TTC master controller is connected with speed probe, the output terminal of TTC master controller connects linear electric motor, linear electric motor link to each other with motor by flexible axle, and the pressure end of TTC master controller is connected with pressure switch.
The utility model has the advantages that: at engineering machinery vehicle when the low unloaded idling, the user carries out the heavy load operation, operation hydraulic pilot handle, in the time of can detecting coherent signal by the TTC master controller, carry out computing, drive the linear electric motor action, suitably improve engine speed, get final product corresponding raising engine output, satisfy oil pump needed absorbed power under the situation of a fixed load.Can realize automatically that low unloaded idling prevents flame-out function, thereby improve the usability of machine.
Be described further below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is an example structure schematic representation of the present utility model.
Fig. 2 is the circuit diagram of Fig. 1.
Among the figure: 1 motor, 2 linear electric motor flexible axles, 3 linear electric motor, 4 grips, 5TTC master controller, 6 pressure switches, 7 speed probes, 8 oil pumps, 9 power supply on vehicle, 10 safety fuse cutouts, 11 vehicle frame ground (bonding), 12 pressure switch, 13 pressure switch of getting off of getting on the bus.
Embodiment
In Fig. 1 and Fig. 2, the power end of TTC master controller 5 is connected with power supply on vehicle 9, the termination vehicle frame ground, ground 11 of TTC master controller 5, the control end of TTC master controller 5 is connected with grip 4, the input end of TTC master controller 5 is connected with speed probe 7, the output terminal of TTC master controller 5 connects linear electric motor 3, and linear electric motor 3 link to each other with motor 1 by flexible axle 2, and the pressure end of TTC master controller 5 is connected with pressure switch 6.
During work, carry out corresponding computing, output signal driving linear electric motor 3 according to input signal, reach the purpose of motor 1 throttle electric control system, on this basis, thereby realize that low idling acceleration prevents flame-out control function by TTC master controller 5.TTC master controller 5 input signals have: engine rotational speed signal (X1:6, X1:7), grip signal (power supply X1:3, signal X1:4, ground wire X1:5), linear electric motor actual position signal (power supply X1:10, signal X1:11, ground wire X1:12), hydraulic pressure signal (X1:13, X1:14), output signal has: linear motor driving signal (X1:8, X1:9).
Along with grip 4 (the potentiometer signal changes in voltage 0.5～4.5V scope) by little (MIN) rotation to big (MAX), set motor 1 rotating speed of target, grip 4 signals are input to TTC master controller 5, through 5 computings of TTC master controller, export ascending linear electric motor 3 drive signals, linear electric motor 3 drive the action of motor 1 throttle fork by linear electric motor flexible axle 2, make the corresponding grip of motor 1 rotating speed 4 relevant positions, TTC master controller 5 is according to linear electric motor 3 actual position signals (the potentiometer signal changes in voltage 0.5～4.5V scope) and motor 1 tach signal, judge linear electric motor 3 actual act, make corresponding control, guarantee motor 1 rotating speed from minimum accurate variation in the highest scope, realized the control of motor 1 throttle.
On this basis, set minimum unloaded idling and quicken numerical value about 1350rpm～1400rpm, at this range operation hydraulic pilot handle, it is flame-out can not to cause motor to suppress, and can realize that with this end in view low idling acceleration prevents flame-out control.
When motor 1 rotating speed is in minimum zero load when idle, be in less than 1350rpm～1400rpm position at grip 4, during the about 800rpm of the minimum unloaded idling speed of the motor 1 rotating speed～1000rpm left and right sides, if the hydraulic pilot handle has action---can judge whether hydraulic system has action according to pressure switch 6, (pressure switch 6 can insert during guide oil returns, detect the pilot pressure signal), judge whether satisfy this moment condition by TTC master controller 5 this moment, output corresponding signal drives linear electric motor 3, brings up to the rotating speed of motor 1 about 1350rpm～1400rpm automatically; Have when moving up to operation grip 4 greater than the relevant position more than 1350rpm～1400rpm or hydraulic pilot handle attonity (pressure switch 6 detects the pilot pressure signals not to be had), this function is cancelled automatically, has realized that low idling acceleration prevents flame-out control function.
Claims (1)
1. one kind low idling quickens to prevent flame-out control gear, this control gear comprises TTC master controller and speed probe, the power end of TTC master controller is connected with power supply on vehicle, the termination vehicle frame ground, ground of TTC master controller, it is characterized in that: the control end of TTC master controller is connected with grip, the input end of TTC master controller is connected with speed probe, the output terminal of TTC master controller connects linear electric motor, linear electric motor link to each other with motor by flexible axle, and the pressure end of TTC master controller is connected with pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020243126 CN201747467U (en) | 2010-06-25 | 2010-06-25 | Control device for accelerating to prevent flameout at idling speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020243126 CN201747467U (en) | 2010-06-25 | 2010-06-25 | Control device for accelerating to prevent flameout at idling speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747467U true CN201747467U (en) | 2011-02-16 |
Family
ID=43582150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020243126 Expired - Fee Related CN201747467U (en) | 2010-06-25 | 2010-06-25 | Control device for accelerating to prevent flameout at idling speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392746A (en) * | 2011-07-01 | 2012-03-28 | 长沙中联重工科技发展股份有限公司 | Off-the-highway tyre crane as well as method, device and system for controlling engine of same |
| CN112208537A (en) * | 2020-10-19 | 2021-01-12 | 广西柳工机械股份有限公司 | Vehicle acceleration control method and system and vehicle |
-
2010
- 2010-06-25 CN CN 201020243126 patent/CN201747467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392746A (en) * | 2011-07-01 | 2012-03-28 | 长沙中联重工科技发展股份有限公司 | Off-the-highway tyre crane as well as method, device and system for controlling engine of same |
| CN112208537A (en) * | 2020-10-19 | 2021-01-12 | 广西柳工机械股份有限公司 | Vehicle acceleration control method and system and vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20180625 |