CN208184845U - A kind of improved small gas engine speed-regulating system - Google Patents
A kind of improved small gas engine speed-regulating system Download PDFInfo
- Publication number
- CN208184845U CN208184845U CN201820442690.XU CN201820442690U CN208184845U CN 208184845 U CN208184845 U CN 208184845U CN 201820442690 U CN201820442690 U CN 201820442690U CN 208184845 U CN208184845 U CN 208184845U
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- China
- Prior art keywords
- speed
- motor
- control module
- regulating
- control
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Classifications
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a kind of improved small gas engine speed-regulating systems, it include stepper motor and speed-regulating control module, stepper motor connection speed-regulating control module forms the control structure to motor work, and speed-regulating control module is connected with signal sampling device and forms the feedback mechanism for exporting control signal to speed-regulating control module.The utility model cooperates by using speed-regulating control module and stepper motor, and after using stepper motor, not only increase the precision and stability of adjusting, it is thus also avoided that conventional actuators prevent damage system unit because of the heating problem for causing coil current to increase with it when engine valve aperture increases；Speed-regulating control module is in addition to can receive conventional speed probe low voltage pulse signal simultaneously, and the charge motor ac frequency signal of engine itself can also be converted corresponding revolving speed, greatly increases the scope of application of this system.
Description
Technical field
The utility model relates to engine apparatus technical fields, and in particular to a kind of speed regulation system of small gas engine
System.
Background technique
Gas engine thus is more and more widely used due to having many advantages, such as cleaning, environmental protection, efficient.It is existing
The actuator speed-regulating system that some small gas engines use mainly leans on the electromagnetic force and bullet of control circuit electromagnetic valve for adjusting
Spring force goes balance control throttle rod to adjust throttle opening, and this governor has the following disadvantages, and first, speed regulation is stablized
Property is poor；Second, adjustment equipment cannot realize air inflow and accurately control；Third, solenoid valve coil current when high power uses
Greatly, temperature is high, and system unit is easy to damage, influences the normal work of engine.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of simple structure, convenient control, speed regulation stability more preferably,
Control that precision is higher, non-damageable improved small gas engine speed-regulating system.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of improved small combustion gas is started
Machine speed-regulating system, it is characterised in that: include to control the motor of throttle opening and by acquisition speed probe for adjusting
Pulse signal or the speed-regulating control module for starting to carry the low-voltage AC frequency acquisition rotary speed information of charging machine, motor connection
Speed-regulating control module forms the control structure to motor work, and speed-regulating control module is connected with signal sampling device and is formed to speed regulation
The feedback mechanism of control module output control signal；The air throttle of engine is connected with an air throttle rocker arm, the output shaft of motor
It is connected the aperture control structure to be formed to air throttle with the air throttle rocker arm.
Further, the speed-regulating control module includes speed control, and the signal sampling device is speed biography
Sensor, speed-regulating control module connect the velocity sensor by its speed control and form tach signal sampling structure.
Further, the speed-regulating control module connects motor by its speed control and forms pulse signal control knot
Structure, the motor are stepper motor.Speed-regulating control module acquires tach signal information, compared with program setting revolving speed, to step
Positive and negative rotation adjusting is carried out into motor, to control gas engine stable operation in rotating speed of target, and the meeting when being powered every time
Stepper motor is set to return zero, first to ensure that gas engine can normal clean boot.
Further, the output shaft of the stepper motor is connected with a motor rocker arm, and motor rocker arm passes through a connecting rod and section
Valve rocker connects into linkage structure.Stepper motor drives the draw-bar machine of the air throttle rocker arm of gas engine by positive and negative rotation
Structure adjusts control throttle opening in real time.
In application, setting the gas engine running speed of speed-regulating system needs first, speed signal is by external magnetic transducing
Device or crankshaft power generation detection engine speed, the actual speed value that speed-regulating system will test compare compared with setting value
Difference is controlled the arrangement of route, amplification, is obtained adjustment step number required for stepper motor to drive stepper motor and execute, is walked
The control that gas inlet amount is realized into the air throttle of motor pushing gas engine, completes to send out using the control of gas inlet amount
The control of motivation revolving speed, the engine speed after speed regulation are sent to speed-regulating system again and compare the speed regulation system to form a closed loop
System.
The utility model cooperates by using speed-regulating control module and stepper motor, and after using stepper motor, not only mention
The high precision and stability adjusted, it is thus also avoided that conventional actuators because cause when engine valve aperture increases coil current with
Increase heating problem, prevent damage system unit；Speed-regulating control module is in addition to can receive conventional revolution speed sensing simultaneously
Device low voltage pulse signal, the charge motor ac frequency signal of engine itself can also be converted corresponding revolving speed, greatly
Improve the scope of application of this system.
Detailed description of the invention
Fig. 1 is the utility model control structure schematic diagram；
Fig. 2 is the utility model attachment structure schematic diagram.
In figure, 1 is stepper motor, and 2 be air throttle, and 3 be motor rocker arm, and 4 be air throttle rocker arm, and 5 be connecting rod.
Specific embodiment
In the present embodiment, referring to Figures 1 and 2, the improved small gas engine speed-regulating system, includes for adjusting
Section controls the motor of throttle opening and by acquiring speed probe pulse signal or the low pressure of included charging machine being started to hand over
The speed-regulating control module of galvanic electricity frequency acquisition rotary speed information, motor connection speed-regulating control module form the control knot to motor work
Structure, speed-regulating control module are connected with signal sampling device and form the feedback mechanism for exporting control signal to speed-regulating control module；Hair
The air throttle 2 of motivation is connected with an air throttle Rocker arm 4, and the output shaft of motor and the air throttle Rocker arm 4 are connected to be formed to section
The aperture control structure of valve 2.
The speed-regulating control module includes speed control, and the signal sampling device is a velocity sensor, speed regulation
Control module connects the velocity sensor by its speed control and forms tach signal sampling structure.
The speed-regulating control module connects motor by its speed control and forms pulse signal control structure, the motor
For stepper motor 1.Speed-regulating control module acquires tach signal information, compared with program setting revolving speed, carries out to stepper motor 1
Positive and negative rotation is adjusted, to control gas engine stable operation in rotating speed of target, and can first make stepping electric when being powered every time
Machine returns zero, to ensure that gas engine can normal clean boot.
The output shaft of the stepper motor 1 is connected with a motor rocker arm 3, and motor rocker arm 3 is shaken by a connecting rod 5 with air throttle
Arm 4 connects into linkage structure.Stepper motor 1 drives the drag link mechanism of the air throttle Rocker arm 4 of gas engine by positive and negative rotation, real
When adjust control 2 aperture of air throttle.
In application, setting the gas engine running speed of speed-regulating system needs first, speed signal is by external magnetic transducing
Device or crankshaft power generation detection engine speed, the actual speed value that speed-regulating system will test compare compared with setting value
Difference is controlled the arrangement of route, amplification, is obtained adjustment step number required for stepper motor to drive stepper motor and execute, is walked
The control that gas inlet amount is realized into the air throttle of motor pushing gas engine, completes to send out using the control of gas inlet amount
The control of motivation revolving speed, the engine speed after speed regulation are sent to speed-regulating system again and compare the speed regulation system to form a closed loop
System.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this
In utility model covering scope.
Claims (4)
1. a kind of improved small gas engine speed-regulating system, it is characterised in that: include to be opened for adjusting control air throttle
The motor of degree and by acquisition speed probe pulse signal or the low-voltage AC frequency acquisition of included charging machine is started to turn
The speed-regulating control module of fast information, motor connection speed-regulating control module form the control structure to motor work, speed regulating control mould
Block is connected with signal sampling device and forms the feedback mechanism for exporting control signal to speed-regulating control module；The air throttle of engine connects
It is connected to an air throttle rocker arm, the output shaft of motor and the air throttle rocker arm are connected to be formed and tie to the aperture control of air throttle
Structure.
2. improved small gas engine speed-regulating system according to claim 1, it is characterised in that: the speed regulating control
Module includes speed control, and the signal sampling device is a velocity sensor, and speed-regulating control module passes through its speed control
Device processed connects the velocity sensor and forms tach signal sampling structure.
3. improved small gas engine speed-regulating system according to claim 2, it is characterised in that: the speed regulating control
Module connects motor by its speed control and forms pulse signal control structure, and the motor is stepper motor.
4. improved small gas engine speed-regulating system according to claim 3, it is characterised in that: the stepper motor
Output shaft be connected with a motor rocker arm, motor rocker arm connects into linkage structure by a connecting rod and air throttle rocker arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442690.XU CN208184845U (en) | 2018-03-29 | 2018-03-29 | A kind of improved small gas engine speed-regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442690.XU CN208184845U (en) | 2018-03-29 | 2018-03-29 | A kind of improved small gas engine speed-regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184845U true CN208184845U (en) | 2018-12-04 |
Family
ID=64435588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820442690.XU Active CN208184845U (en) | 2018-03-29 | 2018-03-29 | A kind of improved small gas engine speed-regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184845U (en) |
-
2018
- 2018-03-29 CN CN201820442690.XU patent/CN208184845U/en active Active
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