CN103527333A - Digitalized electronic speed regulator and engine speed regulation method - Google Patents
Digitalized electronic speed regulator and engine speed regulation method Download PDFInfo
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- CN103527333A CN103527333A CN201210234335.0A CN201210234335A CN103527333A CN 103527333 A CN103527333 A CN 103527333A CN 201210234335 A CN201210234335 A CN 201210234335A CN 103527333 A CN103527333 A CN 103527333A
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Abstract
The invention relates to a digitalized electronic speed regulator. The digitalized electronic speed regulator comprises a rotating speed controller, a rotating speed sensor, an actuator and cables, wherein the rotating speed controller sets the desired rotating speed, the rotating speed sensor collects the practical rotating speed, the actuator regulates the practical rotating speed, and the cables are connected with the rotating speed controller, the rotating speed sensor and the actuator. The rotating speed controller further comprises a rotating speed setting potentiometer, a comparator, a rotating speed deviation device, a converter and a PID regulator, wherein the rotating speed setting potentiometer sets the desired rotating speed, the comparator compares the desired rotating speed with the practical rotating speed, the rotating speed deviation device calculates rotating speed deviation value of the desired rotating speed and the practical rotating speed, the converter converts the practical rotating speed into a digital square wave, and the PID regulator converts the rotating speed deviation value into PWM. The invention further provides an engine speed regulation method. The digitalized electronic speed regulator and the engine speed regulation method have the advantages that a power system is safer in operation and running, the dispersion performance is better, and the stability is better.
Description
Technical field
The present invention relates to motor apparatus system, particularly a kind of digitalized electron speed regulator and speed regulating method of use for diesel engine.
Background technique
The need of work of diesel engine is stablized by a speed regulator, be called speed regulator, the diesel engine of generally using at present, its fuel feed amount is by the determining positions of injection pump plunger, the position of injection pump plunger is controlled tooth bar by the plunger position in Injection Pump and is regulated, associated by between rotating speed device and plunger position control tooth bar of speed regulator, by the pattern of " reverse feedback ", stablize the rotating speed of diesel engine and prevent driving, the principle of mechanical governor Ji Xietiaoxie is that centrifugal force and the spring equilibrium of forces by flying to produce when piece rotates carrys out adjusting rotary speed; When spring force one timing, the centrifugal force that rotating speed height produces while rotating is very fast large, promotes plunger position control tooth bar fuel delivery is reduced, thereby reduce the rotating speed of motor; The centrifugal force that rotating speed is low to be produced while flying piece rotation is little, promotes plunger position and controls tooth bar fuel delivery is increased, thereby improve the rotating speed of motor, reaches dynamic stable; Strengthen or reduce throttle, being exactly in fact to change spring force by changing the size of camber of spring, thereby making diesel engine be issued at new rotating speed the rotating speed that new balance changes motor.But mechanical governor Ji Xietiaoxie still has shortcoming, be that speed governing is one-time-reach-place and has inertia, and the speed-regulating mode of this machinery need to and fly block system and adjusts accurately and coordinate with Injection Pump spring, speed governing sensitivity decline when as not good in coordinated and inertia increases, although it is very fast to occur adding, increase, slow down while subtracting throttle, but oil inflame is incomplete, cause that oil consumption is higher, black smoke, toxic emission be serious; Simultaneously, under the working condition of diesel engine, spring force can not be changed after once setting, and load needs fuel delivery to increase while increasing, and only having speedup to reduce fuel delivery could increase.
Engine governor is that motor is stablized and is controlled at the control gear moving under the working speed of setting, has on the market: mechanical governor Ji Xietiaoxie, hydrodynamic governor, electrohydraulic governor, electronic speed regulator, centrifugal and vacuum governor according to the difference of its implementation.For a long time, diesel engine mainly adopts mechanical type and mechanical hydraulic-pressure type and analog electronic speed regulator.But these two kinds there is fatal unstability and discrete lines, in many occasions, can not meet the demands far away.Simulation electronic speed regulator is arithmetic circuit, servo circuit, feeder loop composition, in calculating process, there is floating of discreteness and stability, the circuit that many discrete devices form like this, as long as a device occurs that parameter variation just can affect whole circuitry, if a plurality of element occurs that parameter variation issue is more serious.
The present invention provides a kind of new digitized electronic speed regulator to solve the problems referred to above.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of can be by engine control stable operation and can overcome digitalized electron speed regulator and the engine governed speed method of discreteness and improving stability under permanent rotating speed.
The present invention solves above-mentioned technical problem by such technological scheme:
A kind of digitalized electron speed regulator is provided, this digitalized electron speed regulator comprises the rotational speed governor of setting desired speed, gather the speed probe of actual speed, adjust the final controlling element of actual speed, and the cable that connects above-mentioned each parts, rotational speed governor comprises again the speed setting potentiometer of setting desired speed, the comparator of more satisfactory rotating speed and actual speed, calculate the rotating speed deviator of the rotating speed departure of desired speed and actual speed, the transducer that to change actual speed analog sine wave signal be digital square-wave and rotating speed departure is converted to the PID regulator of PWM.
As a kind of improvement, final controlling element is electromagnetic actuator, is armored direct current proportion electro-magnet, controls electric current proportional in its oiling direction driving force and coil winding, subtracts oily direction reposition force and is produced by Returnning spring.
As a kind of improvement, speed probe is magnetoelectric tachometric transducer, and internal structure is comprised of magnetic conduction probe, coil, magnet steel, and the magnetic force that magnet steel produces is popped one's head in and formed the closed magnetic line of force by magnetic conduction, and coil winding is on magnetic conduction probe.
The present invention separately provides a kind of engine governed speed method, the method is: digitalized electron speed regulator comprises rotational speed governor, speed probe, final controlling element, and the cable that connects above-mentioned each parts, rotational speed governor comprises again speed setting potentiometer, comparator, rotating speed deviator, modulus signal transducer and PID regulator, the desired speed of motor is set by the speed setting potentiometer of rotational speed governor, the actual speed of motor is gathered by the speed probe that is installed on flywheel ring gear position, its output signal is frequency AC sine wave signal proportional to engine speed, this signal is converted to digital square-wave through modulus signal transducer, through comparator, by rotating speed deviator obtain rotating speed departure after relatively with speed setting value, this rotating speed departure changes into PWM current control mode after PID regulator operation amplifier, to final controlling element output driving current, final controlling element changes and does straight line motion output final controlling element pull bar effect diesel engine speed-regulating handle at the effect lower compression contained spring of driving current, thereby control engine stable operation under the rotating speed setting.
Compared with prior art, the present invention has the following advantages: make that power system operation operation is safer, discreteness is better, stability is better.
Accompanying drawing explanation
Fig. 1 is the system framework figure of a kind of mode of execution of digitalized electron speed regulator of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail.
Digitalized electron speed regulator of the present invention is by the stable accurate control device of moving under the working speed of setting that is controlled at of motor; according to the difference of its implementation, can be divided into mechanical governor Ji Xietiaoxie, hydrodynamic governor, electrohydraulic governor, electronic speed regulator and centrifugal and vacuum governor etc.; on control principle; the mechanisms such as various speed regulators all have speed setting, test the speed, comparison, computing, driver output, executive component, accommodation coefficient setting, protection or restriction or parts ，Ge mechanism or parts are through being effectively combined to form a closed loop control system.
Digitalized electron speed regulator of the present invention is comprised of cable of rotational speed governor, final controlling element, speed probe and the above-mentioned parts of connection etc.The desired speed of motor is set by the speed setting potentiometer on rotational speed governor, the actual speed of motor is gathered by the magnetoelectric tachometric transducer that is installed on flywheel ring gear position, and its output signal is frequency AC sine wave signal proportional to engine speed, this signal is converted to digital square-wave through modulus signal transducer (sine wave signal is converted to square signal), and after speed setting value, obtains rotating speed departure, this departure is through PID regulator (proportional-integral derivative controller, by ratio unit P, integral unit I and differentiation element D form) change into PWM(Pulse-Width Modulation after operation amplifier, pulsewidth modulation) current control mode, to final controlling element output driving current, final controlling element changes and does straight line motion output at the effect lower compression contained spring of driving current, final controlling element is armored direct current proportion electro-magnet, in its oiling direction driving force and coil winding, control electric current proportional, subtracting oily direction reposition force is produced by Returnning spring, final controlling element pull bar effect diesel engine speed-regulating handle, thereby control engine stable operation under the rotating speed setting.
Speed regulator working principle of the present invention is: speed regulator compares with the actual engine speed that detecting element records setting working speed, and the result (being deviation) of comparison comprises two-part information: deviation " positive and negative " information and deviation amplitude information.
The effect of deviation " positive and negative " information is: if actual engine speed is greater than the working speed of setting, deviation is " bearing ", and speed regulator will be exported " negative sense " and control, and by executive component, reduce fuel quantity, and engine speed decreases; If actual engine speed is less than the working speed of setting, deviation is " just ", and speed regulator will be exported " forward " and control, and by executive component, increase fuel quantity, and engine speed increases.
The effect of deviation amplitude information is: deviation amplitude is through MCU(Micro Controlling Unit, microprocessor or microcontroller) processing, determine the size of output controlled quentity controlled variable, increase or reduce fuel quantity number, in the situation that deviation amplitude is certain, the size of output controlled quentity controlled variable must be suitable, and the excessive or too small engine speed that all can cause is unstable or do not reach adjusting speed accuracy requirement.
According to the difference of speed regulator kind, the operation method of processing has its distinctive physics realization mode:
Mechanical governor Ji Xietiaoxie: the variation by mechanical lever fulcrum realizes simple " ratio adjusting " fortune (P computing);
Hydrodynamic governor: realize (PID computings) such as " ratio adjusting ", " integral adjustments " and " differential adjusting " by the variation of mechanical lever fulcrum, the oil cylinder with throttling action and needle-valve;
Electronic speed regulator: realize PID computing or more complicated intelligent control by analog circut or computer software.
Please refer to the drawing 1 is the system framework figure of a kind of mode of execution of 10 of digitalized electron speed regulator of the present invention.This digitalized electron speed regulator 10 is powered by power supply 30 and for regulating the rotating speed of motor 20.
Digitalized electron speed regulator 10 comprises rotational speed governor 11, speed probe 12, electromagnetic actuator 13, and the cable (being shown as the lines with arrow in figure) that connects above-mentioned each parts.Particularly, rotational speed governor 11 comprises again speed setting potentiometer 111, comparator 112, rotating speed deviator 113, modulus signal transducer 114 and PID regulator 115.
Speed regulating method is as follows: the desired speed of motor 20 is set by the speed setting potentiometer 111 of rotational speed governor 11, the actual speed of motor 20 is gathered by the magnetoelectric tachometric transducer 12 that is installed on flywheel ring gear position, its output signal is frequency and the proportional ac voltage signal of motor 20 rotating speed, this signal is converted to VDC through modulus signal transducer 114, through comparator 112, by rotating speed deviator 113 obtain rotating speed departure after relatively with speed setting value, this rotating speed departure changes into PWM current control mode after PID regulator 115 operation amplifiers, to electromagnetic actuator 13 output driving currents, electromagnetic actuator 13 changes and does straight line motion output at the effect lower compression contained spring of driving current, thereby reach engine speed transient equiliblium, make cluster engine export constant 380V alternating voltage.
Electromagnetic actuator 13 is armored direct current proportion electro-magnet, in its oiling direction driving force and coil winding, control electric current proportional, subtracting oily direction reposition force is produced by Returnning spring, final controlling element pull bar effect diesel engine speed-regulating handle, thereby control engine stable operation under the rotating speed setting.
Electromagnetic actuator 13 is executive components of electronic speed regulator, by controlling the coil current of electromagnetic actuator 13, can control the output displacement of electromagnetic actuator 13.Electromagnetic actuator 13 directly drives high pressure oil pump tooth bar or the petrol engine closure of motor 20, thus the fuel feed of control engine 20.By heating power, change, motor 20 is converted into kinetic energy outputting power moment of torsion by chemical energy, and dynamic torque and load resistance square interact and form the rotating speed output of motor.Therefore, the size of current of control electromagnetic actuator 13 gets final product the rotating speed of control engine.
The desired speed of motor 20 is by speed setting potentiometer 111 and external trimmer potentiometer (selectable unit (SU), can select according to actual needs arrange or do not arrange) set, the actual speed of motor 20 is experienced by the magnetoelectric tachometric transducer 12 that is installed on flywheel ring gear position, and its output signal is frequency AC sine wave signal proportional to engine speed, this signal is converted to digital square-wave through modulus signal transducer 114, and after speed setting value, obtains rotating speed departure, this deviation draws engine fuel supply amount position after PID regulator 115 operation amplifiers, it is executive component stable state output order position, this location of instruction and the actual outgoing position of current electromagnetic actuator relatively after, obtain positional deviation amount, this deviation is again after PID regulator 115 operation amplifiers, change into PWM current control mode, to electromagnetic actuator output driving current, to change the outgoing position of electromagnetic actuator, drive injection pump of engine tooth bar, closure or fuel control valve are to the direction motion that reduces rotating speed deviation, thereby control engine stable operation under the rotating speed setting.
Adopt the present invention, will have that the power system of making operation operation is safer, discreteness is better, the good feature of stability.
The foregoing is only better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned mode of execution; in every case the equivalence that those of ordinary skills do according to disclosed content is modified or is changed, and all should include in the protection domain of recording in claims.
Claims (6)
1. a digitalized electron speed regulator, it is characterized in that this digitalized electron speed regulator comprises the rotational speed governor of setting desired speed, gather the speed probe of actual speed, adjust the final controlling element of actual speed, and the cable that connects above-mentioned each parts, rotational speed governor comprises again the speed setting potentiometer of setting desired speed, the comparator of more satisfactory rotating speed and actual speed, calculate the rotating speed deviator of the rotating speed departure of desired speed and actual speed, the transducer that to change actual speed analog sine wave signal be digital square-wave and rotating speed departure is converted to the PID regulator of PWM.
2. digitalized electron speed regulator according to claim 1, it is characterized in that: final controlling element is electromagnetic actuator, for armored direct current proportion electro-magnet, in its oiling direction driving force and coil winding, control electric current proportional, subtract oily direction reposition force and produced by Returnning spring.
3. digitalized electron speed regulator according to claim 1, it is characterized in that: speed probe is magnetoelectric tachometric transducer, internal structure is comprised of magnetic conduction probe, coil, magnet steel, and the magnetic force that magnet steel produces is popped one's head in and formed the closed magnetic line of force by magnetic conduction, and coil winding is on magnetic conduction probe.
4. the engine governed speed method of a digitalized electron speed regulator according to claim 1, it is characterized in that, the method is: digitalized electron speed regulator comprises rotational speed governor, speed probe, final controlling element, and the cable that connects above-mentioned each parts, rotational speed governor comprises again speed setting potentiometer, comparator, rotating speed deviator, analog sine wave signal is converted to transducer and the PID regulator of digital square-wave, the desired speed of motor is set by the speed setting potentiometer of rotational speed governor, the actual speed of motor is gathered by the speed probe that is installed on flywheel ring gear position, its output signal is frequency sine wave signal proportional to engine speed, this signal imitation sine wave signal is converted to digital square-wave, through comparator, by rotating speed deviator obtain rotating speed departure after relatively with speed setting value, this rotating speed departure changes into PWM current control mode after PID regulator operation amplifier, to final controlling element output driving current, final controlling element changes and does straight line motion output final controlling element pull bar effect diesel engine speed-regulating handle at the effect lower compression contained spring of driving current, thereby control engine stable operation under the rotating speed setting.
5. engine governed speed method according to claim 4, it is characterized in that: final controlling element is electromagnetic actuator, for armored direct current proportion electro-magnet, in its oiling direction driving force and coil winding, control electric current proportional, subtract oily direction reposition force and produced by Returnning spring.
6. engine governed speed method according to claim 4, it is characterized in that: speed probe is magnetoelectric tachometric transducer, internal structure is comprised of magnetic conduction probe, coil, magnet steel, and the magnetic force that magnet steel produces is popped one's head in and formed the closed magnetic line of force by magnetic conduction, and coil winding is on magnetic conduction probe.
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| CN201210234335.0A CN103527333A (en) | 2012-07-06 | 2012-07-06 | Digitalized electronic speed regulator and engine speed regulation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527322A (en) * | 2013-10-15 | 2014-01-22 | 苏州盈高电控科技有限公司 | Digital electric speed regulator and engine speed regulating method |
| CN104100382A (en) * | 2014-06-26 | 2014-10-15 | 临沂大学 | Gasoline engine electronic speed controller |
| CN104847510A (en) * | 2015-03-23 | 2015-08-19 | 柳州柳工挖掘机有限公司 | Automatic engineering mechanical engine rotation speed drift compensation method |
| CN109269804A (en) * | 2018-11-06 | 2019-01-25 | 潍柴动力股份有限公司 | A kind of Wiring detection method and detection system |
| CN110332049A (en) * | 2019-06-19 | 2019-10-15 | 盐城赛福汽车零部件有限公司 | A kind of diesel engine for automobile digital electronic governor and its speed regulating method |
| CN111173627A (en) * | 2019-06-29 | 2020-05-19 | 山东中拓新能源有限公司 | Gas generator set speed regulating system and control method thereof |
| CN113062806A (en) * | 2021-03-08 | 2021-07-02 | 河北华北柴油机有限责任公司 | Pump set speed regulation control method based on EMR system |
| CN114810394A (en) * | 2022-05-27 | 2022-07-29 | 重庆红江机械有限责任公司 | Diesel engine analog PID speed regulation circuit |
| CN116069068A (en) * | 2023-04-06 | 2023-05-05 | 深圳市好盈科技股份有限公司 | Method and device for searching model airplane, storage medium and electronic equipment |
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2012
- 2012-07-06 CN CN201210234335.0A patent/CN103527333A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527322A (en) * | 2013-10-15 | 2014-01-22 | 苏州盈高电控科技有限公司 | Digital electric speed regulator and engine speed regulating method |
| CN104100382A (en) * | 2014-06-26 | 2014-10-15 | 临沂大学 | Gasoline engine electronic speed controller |
| CN104847510A (en) * | 2015-03-23 | 2015-08-19 | 柳州柳工挖掘机有限公司 | Automatic engineering mechanical engine rotation speed drift compensation method |
| CN104847510B (en) * | 2015-03-23 | 2017-11-24 | 柳州柳工挖掘机有限公司 | Engineering machinery engine rotating speed drift automatic compensating method |
| CN109269804A (en) * | 2018-11-06 | 2019-01-25 | 潍柴动力股份有限公司 | A kind of Wiring detection method and detection system |
| CN110332049A (en) * | 2019-06-19 | 2019-10-15 | 盐城赛福汽车零部件有限公司 | A kind of diesel engine for automobile digital electronic governor and its speed regulating method |
| CN110332049B (en) * | 2019-06-19 | 2022-04-12 | 广东宇豪新材料科技有限公司 | Digital electronic speed regulator of diesel engine for vehicle and speed regulating method thereof |
| CN111173627A (en) * | 2019-06-29 | 2020-05-19 | 山东中拓新能源有限公司 | Gas generator set speed regulating system and control method thereof |
| CN113062806A (en) * | 2021-03-08 | 2021-07-02 | 河北华北柴油机有限责任公司 | Pump set speed regulation control method based on EMR system |
| CN114810394A (en) * | 2022-05-27 | 2022-07-29 | 重庆红江机械有限责任公司 | Diesel engine analog PID speed regulation circuit |
| CN116069068A (en) * | 2023-04-06 | 2023-05-05 | 深圳市好盈科技股份有限公司 | Method and device for searching model airplane, storage medium and electronic equipment |
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Application publication date: 20140122 |