CN106401775A - Electronically-controlled gasoline injection system for motorcycles - Google Patents
Electronically-controlled gasoline injection system for motorcycles Download PDFInfo
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- CN106401775A CN106401775A CN201611025436.1A CN201611025436A CN106401775A CN 106401775 A CN106401775 A CN 106401775A CN 201611025436 A CN201611025436 A CN 201611025436A CN 106401775 A CN106401775 A CN 106401775A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/401—Controlling injection timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/104—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles using electric step motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D2041/0022—Controlling intake air for diesel engines by throttle control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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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
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Signal Processing (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses an electronically-controlled gasoline injection system for motorcycles. The system comprises an electronic control unit, an engine operation condition data collection subsystem, an electronic throttle valve control subsystem, a common rail gasoline injection subsystem and a digital ignition subsystem. According to the system, the electronic control unit serves as a control center, and optimal working parameters are obtained through data collection of the engine operation condition data collection subsystem; according to the shifting degree of an accelerator, the electronic control unit adjusts the air inflow of an electronic throttle valve by driving and controlling a stepping motor; according to the fuel output pressure, the electronic control unit adjusts the fuel injection quantity and the fuel injection time by controlling the common rail gasoline injection subsystem; and according to the position of an engine crankshaft, the electronic control unit controls the ignition time and the charging time of a high pressure pack through the digital ignition subsystem. Thus, fuel injection and ignition can be accurately controlled, the air-fuel ratio can be controlled in real time, an engine can work on the optimum condition, and fuel conservation and emission reduction of the motorcycles can be realized.
Description
Technical field
The present invention relates to gasoline injection technology field, more particularly, to a kind of motor vehicle electric control gasoline injection system.
Background technology
At present, the motorcycle yield of China occupies first place in the world, but the oil supply system of most motorcycle still makes
Use carburetor.Carburetor, generally by the control of the machinery such as acceleration cable, is controlled with the aperture of metering-orifice and air throttle and starts
, the shortcomings of there is oil consumption height, be difficult to control to waste gas discharge in the fuel delivery of the various operating mode of machine.Continuous development with market and motor
The appearance of Che Guosi Abgasgesetz, carburetor will be difficult to meet the demand of motorcycle development, and therefore motorcycle adopts electric jet technology
It is the inexorable trend of future development.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide a kind of motor vehicle electric control gasoline injection system,
Based on the cooperation of electronic control unit, electronic throttle, the injection of common rail gasoline, digital ignition and sensor etc., realize
Precise control oil spout and igniting, make the electromotor moment be operated in optimum condition, thus meet output torque, low oil consumption and discharge will
Ask.
The purpose of the present invention is achieved by the following technical programs：
A kind of motor vehicle electric control gasoline injection system that the present invention provides, including electronic control unit, engine operating condition
Data acquisition subsystem, Electronic Throttle Control subsystem, common rail gasoline injection subsystem, digital ignition subsystem；Wherein,
Described engine operating condition data acquisition subsystem, including throttle sensor, pressure transducer, speed probe, top
Spiral shell instrument, oxygen sensor, temperature sensor, and be all connected on electronic control unit；
Described Electronic Throttle Control subsystem, including valve body, motor, throttle plate pin, air throttle valve block, air throttle
Displacement transducer；Described air throttle valve block is located at throttle outlet and is arranged on throttle plate pin；Described throttle plate pin one
End is connected with the output shaft of motor；Described throttle sensor is connected with throttle cable and connects step through electronic control unit
Stepper motor；Described throttle displacement sensor is formed by sensing circle wheel, U-shaped Magnet, Hall element；The avris of described sensing circle wheel
It is provided with mounting groove, described U-shaped Magnet is correspondingly embedded in the mounting groove of sensing circle wheel, and described Hall element presses close to sensing circle
Take turns and be connected on electronic control unit；Its other end of described throttle plate pin is connected with sensing circle wheel；Described throttle sensor with
Throttle cable connects and connects motor through electronic control unit；
Described common rail gasoline injection subsystem, including fuel pump, fuel oil pump main, atomizer；The drive of described fuel pump
Galvanic electricity machine is DC brushless motor；Described fuel pump is communicated to atomizer through fuel oil pump main；Described pressure transducer setting
Connect fuel pump DC brushless motor and atomizer on fuel oil pump main and through electronic control unit；
Described digital ignition subsystem, including drive circuit, ignition control circuit, spark plug；Described drive circuit connects
Drive ignition control circuit, described ignition control circuit connects pilot spark plug；Described speed probe is arranged on electromotor and turns
Drive circuit is connected on axle and through electronic control unit.
The present invention, with electronic control unit as control centre, records driver's driver behavior by throttle sensor and is intended to,
By the data acquisition of pressure transducer, speed probe, temperature sensor, oxygen sensor, gyroscope etc. thus calculating analysis
And obtain optimal running parameter.According to the size of throttle displacement, electronic control unit is adjusted by drive control motor
The air inflow of electronic throttle；According to fuel oil output pressure etc., electronic control unit passes through to control common rail gasoline injection subsystem
Adjustment distributive value and injection time；According to engine crankshaft position etc., electronic control unit passes through digital ignition subsystem controls
Time of ignition and high voltage package charging interval, thus real-time control air-fuel ratio, make electromotor be operated in optimum condition, realize motorcycle
Oil-saving discharging-reducing.
The present invention realizes the independent control to throttle opening based on automatically controlled motor, can throttle valve in the oil spout period
Aperture remains unchanged, thus better controling over air-fuel ratio.After electronic throttle completely closes, electronic control unit drives stepping
Motor is simultaneously analyzed through AD conversion to the voltage signal of throttle displacement sensor simultaneously, and the position of air throttle is repaiied
Just and zeroing, thus eliminating machine error；When air throttle is opened, electronic control unit is anti-according to throttle displacement sensor
Feedback signal analyzing and processing obtains throttle opening information, and then air throttle is suitably revised, thus obtaining further essence
Really control.
In such scheme, throttle sensor of the present invention includes shell, inner bag, magnetic material, Hall element；Described
Inside the shell is provided with shifting chute；Described Hall element is arranged on the outer surface of shell；Its top of described inner bag is with throttle cable even
Connect, its underpart has duct, described magnetic material is arranged in the duct of inner bag；Described inner bag is arranged on the shifting chute of shell
Interior and can move up and down；Described Hall element is connected on electronic control unit.
Further, for stablizing the position of throttle cable, heretofore described throttle sensor also includes attachment cap, described
Attachment cap its underpart is connected with shell upper end, its top an is limited borehole jack.Attachment cap is connected to the upper end of shell, and throttle cable is then
It is connected through with the top of inner bag through the spacing hole set on attachment cap.
The common rail gasoline injection subsystem of the present invention, by electronic control unit, adjusts to direct current brushless motor speed
Rectification becomes and adjusts control fuel oil output pressure, passes through to change the opening time that pulse signal controls atomizer simultaneously, thus real
The injection of existing fuel oil is by fuel oil output pressure and atomizer opening time co- controlling, and motor, digital ignition subsystem
The control of system.For achieving the above object, electronic control unit of the present invention includes consisting of module：
ADC Analog-digital Converter module, for receiving described engine operating condition data acquisition subsystem, throttle displacement passes
The analogue signal that the Hall element collection of sensor sends, and is converted to digital signal, and it is defeated to obtain engine operating condition data, fuel oil
Go out pressure data and throttle displacement data；
Central processor CPU, for processing, calculating the data of ADC Analog-digital Converter module transmission；According to system condition
And fuel oil output pressure data, select suitable adjustment of oil pressure acceleration parameter from default adjustment of oil pressure acceleration parameter
Value, draws direct current brushless motor speed output valve by pid control algorithm；Air throttle correction is drawn according to throttle displacement data
Data, and then draw motor rotating speed output valve；
DAC digital-to-analogue conversion module, for turning direct current brushless motor speed output valve, motor rotating speed output valve
It is changed to analogue signal and be sent to driven by Brush-Less DC motor module, step motor drive module；
Driven by Brush-Less DC motor module, for driving DC brushless motor so that fuel pump operates in corresponding rotating speed
With control pressure value；
Step motor drive module, runs to corresponding throttle valve angle for drive stepping motor.
Intervalometer, calculate for rotating speed, exported according to adjustment of oil pressure acceleration parameter value pwm pulse signal to atomizer and
Control the high voltage package discharge and recharge time；
Described engine operating condition data acquisition subsystem, Hall element are connected with ADC Analog-digital Converter module；Described
ADC Analog-digital Converter module, central processing unit, DAC digital-to-analogue conversion module are sequentially connected；Described DAC digital simulation turns
Die change block and driven by Brush-Less DC motor module, step motor drive module connect；Described driven by Brush-Less DC motor module, step
Stepper motor drive module, intervalometer are connected respectively to fuel pump DC brushless motor, motor, atomizer；Described intervalometer
It is connected to the drive circuit of digital ignition subsystem.
Electronic control unit of the present invention obtains engine crankshaft position in real time by speed probe, according to rotating speed and rotating speed
Acceleration tendency, temperature are with the operating mode of comprehensive analysis electromotor, and draw optimal ignition advance angle, send out to ignition control circuit
Go out ignition pulse signal, pilot spark plug is lighted a fire, thus realizing intelligent digital ignition function.
It is that bent axle is carried out with more timely, accurate response, speed probe of the present invention is CRANK PULSES encoder,
Including iron teeth wheel, sensor element；Described iron teeth wheel is arranged on engine shaft；Described sensor element presses close to iron teeth wheel,
Sensor element includes carrying on the back Magnetic Sensor and signal processing circuit, and described back of the body Magnetic Sensor is connected in signal processing circuit；Institute
State and 89 teeth are had on iron teeth wheel, by being recessed and protrusion is constituted, wherein 1 tooth is wide tooth to each tooth, 88 teeth are full depth tooth；Described
The depression of wide tooth is 6 °, protrudes for 2 °, and the depression of each full depth tooth described, protrusion are respectively 2 °.Further, described iron teeth wheel with
The distance between sensor element is 1～1.5mm.It is packaged with temperature detecting resistance, described temperature detecting resistance leads in described sensor element
Cross wire output signal.
The invention has the advantages that：
(1) oil door handle shift size accurately can be converted into the signal of telecommunication and be sent to Electronic Control list by the present invention
Unit, can analyze and process the size obtaining throttle displacement and speed, fast response time (up to microsecond rank), thus learn driver
Control the intention of throttle, and preferably analysis judges the operating condition of electromotor, brings more preferable driving experience to driver.
(2) present invention realizes independent control to throttle opening based on automatically controlled motor, can envoy in the oil spout period
Valve opening remains unchanged.Electronic control unit passes through to gather throttle sensor data, in conjunction with engine operating condition parameter, can be to driving
The unreasonable operation of the person of sailing is modified, and by driving the air inflow of automatically controlled step motor control electronic throttle, air throttle is opened
Degree precision is up to 0.45 °；And to throttle position, there is zero offset capability, eliminate machine error.
(3) present invention passes through electronic control unit, direct current brushless motor speed is adjusted change and adjusts control combustion
Oily output pressure, passes through to change the opening time that pulse signal controls atomizer, thus realizing the injection of fuel oil by fuel oil simultaneously
Output pressure and atomizer opening time co- controlling are it is achieved that distributive value arrives adjustable between certain value, Adjustment precision height (error zero
± 10kPa), regulate the speed fast (adjustment time is less than 850 milliseconds), thus effectively realizing oil-saving discharging-reducing.And, in conjunction with to starting
Machine operating mode is judged, selecting suitable adjustment of oil pressure acceleration, having better controled over fuel injection amount, thus improve starting
Machine operating mode.
(4) present invention adopts new electromotor CRANK PULSES encoder to measure rotating speed and engine crankshaft position letter
Breath, timely by magnetic induction way, accurate reaction bent axle rotation, control accuracy is high.The protrusion of iron teeth wheel full depth tooth and depression
It is 2 °, the time of a upper tooth is write down it is possible to utilize a upper tooth by electronic control unit by electronic control unit
Time controls execution relevant action in the middle of tooth, reaches 1 ° of control accuracy.Electronic control unit is according to crank position and comprehensive
Close and analyze various sensing datas, analysis judges engine operating condition, calculates optimal injection advance angle, ignition advance angle, precision
Up to 1 °.And, electromotor initial angle can be told using iron teeth wheel width tooth.One working cycle of four-stroke engine is
Two circles, you can half working cycle of before and after is separated by the burst length of the upper and lower two wide teeth enclosing, such that it is able to clearly know a little
Fire and the opportunity of oil spout, reach the purpose of precise control igniting and oil spout.
Brief description
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail：
Fig. 1 is the system principle diagram of the embodiment of the present invention；
Fig. 2 is the structural representation of the Electronic Throttle Control subsystem in the embodiment of the present invention；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the structural representation (a sensing circle wheel in the embodiment of the present invention：Front view；b：Axonometric chart)；
Fig. 5 is the scheme of installation sensing circle wheel and U-shaped Magnet in the embodiment of the present invention；
Fig. 6 is the schematic block diagram of Electronic Throttle Control subsystem in the embodiment of the present invention；
Fig. 7 is the structural representation of throttle sensor in the embodiment of the present invention；
Fig. 8 is the structural representation of the shell of throttle sensor in the embodiment of the present invention；
Fig. 9 is the structural representation (a of the inner bag of throttle sensor in the embodiment of the present invention：Axonometric chart；b：Sectional view and
Installation diagram with magnetic material)；
Figure 10 is the structural representation (a of the attachment cap of throttle sensor in the embodiment of the present invention：Axonometric chart；b：Section view
Figure)；
Figure 11 is the schematic block diagram of common rail gasoline injection subsystem in the embodiment of the present invention；
Figure 12 is the composition frame chart of electronic control unit in the embodiment of the present invention；
Figure 13 is the application system schematic block diagram of speed probe in the embodiment of the present invention；
Figure 14 is the structural representation of speed probe in the embodiment of the present invention；
Figure 15 is the top view of Figure 14；
Figure 16 is the front view of iron teeth wheel and upward view (a in the embodiment of the present invention：Front view；b：Upward view)；
Figure 17 is the structural principle block diagram of speed probe in the embodiment of the present invention；
Figure 18 is the timing chart of speed probe output in the embodiment of the present invention.
In figure：Electronic control unit 1, ADC Analog-digital Converter module 11, central processing unit 12, DAC digital-to-analogue conversion
Module 13, driven by Brush-Less DC motor module 14, step motor drive module 15, intervalometer 16, engine operating condition data acquisition
Subsystem 2, throttle sensor 21, shell 21a, inner bag 21b, magnetic material 21c, Hall element 21d, attachment cap 21e, mobile
Groove 21f, duct 21g, pressure transducer 22, speed probe 23, iron teeth wheel 23a, wide tooth 23a-1, full depth tooth 23a-2, sensing
Device element 23b, gyroscope 24, oxygen sensor 25, temperature sensor 26, Electronic Throttle Control subsystem 3, valve body 31, stepping
Motor 32, throttle plate pin 33, air throttle valve block 34, sensing circle wheel 35, U-shaped Magnet 36, Hall element 37, common rail gasoline injection
System 4, motor 41, fuel pump 42, fuel oil pump main 43, atomizer 44, digital ignition subsystem 5, drive circuit 51,
Ignition control circuit 52, spark plug 53
Specific embodiment
Fig. 1～Figure 18 show a kind of present invention motor vehicle electric control gasoline injection system, as shown in figure 1, including electronics
Control unit 1, engine operating condition data acquisition subsystem 2, Electronic Throttle Control subsystem 3, common rail gasoline injection subsystem
4th, digital ignition subsystem 5；Wherein,
Engine operating condition data acquisition subsystem 2, including throttle sensor 21, pressure transducer 22, speed probe 23,
Gyroscope 24, oxygen sensor 25, temperature sensor 26, and be all connected on electronic control unit 1.
As shown in Fig. 2 Electronic Throttle Control subsystem 3, including valve body 31, motor 32, throttle plate pin 33, solar term
Gate valve piece 34, throttle displacement sensor.Wherein, air throttle valve block 34 is located at throttle outlet and is arranged on throttle plate pin 33
On.As shown in figure 3, throttle displacement sensor by sensing round wheel 35, U-shaped Magnet 36, Hall element 37 form；As shown in figure 4,
Sensing circle wheel 35 avris be provided with mounting groove 35a, U-shaped Magnet 36 be correspondingly embedded in sensing circle wheel 35 mounting groove 35a in (see
Fig. 5), Hall element 37 presses close to sensing circle wheel 35 (see Fig. 3).As shown in Fig. 2 throttle plate pin 33 its one end and motor 32
Output shaft connects, and its other end is connected with sensing circle wheel 35.And motor 32, Hall element 37 are connected to electronic control unit
On 1.There is ring flange valve body 31 side, and is connected with electromotor by ring flange.
Throttle sensor 21 is connected with throttle cable, as shown in fig. 6, electronic control unit 1 is adopted according to throttle sensor 21
The information such as the throttle shift size of collection acquisition and speed, adjusts the air inlet of electronic throttle by drive control motor 32
Amount.After electronic throttle completely closes, electronic control unit 1 drive stepping motor 32 simultaneously to throttle displacement sensor
Voltage signal be analyzed through AD conversion, the position of air throttle is modified and returns to zero, thus eliminating machine error；When
When air throttle is opened, electronic control unit 1 obtains air throttle according to the feedback signal analysis and processing of throttle displacement sensor and opens
Degree information, and then air throttle is suitably revised, thus obtaining further precise control.
As shown in fig. 7, the present embodiment throttle sensor 21 includes shell 21a, inner bag 21b, magnetic material 21c, Hall biography
Sensor 21d, attachment cap 21e.As shown in figure 8, the upper end open of shell 21a and there is helicitic texture, in shell 21a, it is provided with shifting
Dynamic groove 21f.Hall element 21d is arranged on the middle part of shell 21a outer surface and is connected on electronic control unit 1.As Fig. 9
Shown, the bottom of inner bag 21b has duct 21g.Magnetic material 21c is cylinder, and two magnetic pole is located at two ends, magnetic material
21c is arranged in the duct 21g of inner bag 21b (see Fig. 9 b).Inner bag 21b is arranged in the shifting chute 21f of shell 21a and can go up
Lower movement (see Fig. 7).Attachment cap 21e its underpart is that helicitic texture, its top are limited a borehole jack (see Figure 10).Attachment cap 21e leads to
The threaded upper ends crossing its underpart with shell 21a are connected, throttle cable then through the spacing hole set on attachment cap 21e through with inner bag
The top of 21b connects.
As shown in figure 11, common rail gasoline injection subsystem 4, including fuel pump 42, fuel oil pump main 43, atomizer 44；
Fuel pump 42 is DC brushless pump, and its motor is DC brushless motor 41.Fuel pump 42 connects through fuel oil pump main 43
To atomizer 44.Atomizer 44 is electromagnetism valve nozzle.Pressure transducer 22, Electronic Control list are provided with fuel oil pump main 43
Unit 1 connects control DC brushless motor 41.Injection for realizing fuel oil is common by fuel oil output pressure and atomizer opening time
Control, and the control of motor 32, digital ignition subsystem 5, as shown in figure 12, the present embodiment electronic control unit 1 wraps
Include consisting of module：
ADC Analog-digital Converter module 11, for receiving engine operating condition data acquisition subsystem 2, throttle displacement passes
The analogue signal that Hall element 37 collection of sensor sends, and be converted to digital signal, and obtain engine operating condition data, fuel oil
Output pressure data and throttle displacement data；
Central processor CPU 12, for processing, calculating the data of ADC Analog-digital Converter module 11 transmission；According to system
Operating mode and fuel oil output pressure data, select suitable adjustment of oil pressure acceleration from default adjustment of oil pressure acceleration parameter
Parameter value, draws direct current brushless motor speed output valve by pid control algorithm；Air throttle is drawn according to throttle displacement data
Revise data, and then draw motor rotating speed output valve；
DAC digital-to-analogue conversion module 13, for by direct current brushless motor speed output valve, motor rotating speed output valve
Be converted to analogue signal and be sent to driven by Brush-Less DC motor module 14, step motor drive module 15；
Driven by Brush-Less DC motor module 14, for drive DC brushless motor 41 so that fuel pump 42 operate in corresponding
Rotating speed with control pressure value；
Step motor drive module 15, runs to corresponding throttle valve angle for drive stepping motor 32.
Intervalometer 16, calculates for rotating speed, exports pwm pulse signal according to adjustment of oil pressure acceleration parameter value to atomizer
With the control high voltage package discharge and recharge time；
Engine operating condition data acquisition subsystem 2, Hall element 37 are connected with ADC Analog-digital Converter module 11；ADC mould
Plan data-converting block 11, central processing unit 12, DAC digital-to-analogue conversion module 13 are sequentially connected；DAC digital-to-analogue conversion mould
Block 13 and driven by Brush-Less DC motor module 14, step motor drive module 15 connect；Driven by Brush-Less DC motor module 14, step
Stepper motor drive module 15, intervalometer 16 are connected respectively to fuel pump DC brushless motor 41, motor 32, atomizer 44；
Intervalometer 16 is connected to the drive circuit 51 of digital ignition subsystem 5.
As shown in figure 13, digital ignition subsystem 5, including drive circuit 51, ignition control circuit 52, spark plug 53.Drive
Galvanic electricity road 51 connects drive ignition control circuit 52, and ignition control circuit 52 connects pilot spark plug 53.Electronic control unit 1
The information such as the engine crankshaft position being gathered according to the speed probe 23 being arranged on engine shaft, control drive circuit
51, and then igniting is controlled by ignition control circuit 52.
The present embodiment speed probe 23 be CRANK PULSES encoder, as shown in Figure 14 and Figure 15, including iron teeth wheel 23a,
Sensor element 23b, sensor element 23b include carrying on the back Magnetic Sensor and signal processing circuit, and back of the body Magnetic Sensor is connected to signal
On process circuit.Iron teeth wheel 23a is ferroic material, is arranged on engine shaft；Sensor element 23b presses close to iron teeth wheel 23a,
Distance between the two is 1～1.5mm.
Iron teeth wheel 23a external diameterInternal diameterTooth depth 2mm, facewidth 2mm, as shown in Figure 14 and Figure 16, its
On have 89 teeth, by being recessed and protrusion is constituted, wherein 1 tooth is wide tooth 23a-1 to each tooth, 88 teeth are full depth tooth 23a-2；Wide
The depression of tooth 23a-1 is 6 °, protrudes for 2 °, and the depression of each full depth tooth 23a-2, protrusion are respectively 2 °
It is packaged with temperature detecting resistance NTC resistance, temperature detecting resistance passes through wire output signal in sensor element 23b.According to temperature
(0 DEG C～150 DEG C) changes of degree, by NTC resistance respective change, thus real-time perception and monitoring electromotor, the work of sensor
Temperature.
As shown in figure 17, the back of the body Magnetic Sensor be connected to signal processing circuit, through hysteresis comparator circuit signal amplify,
Analyze shaping, output 3V pulse (see Figure 18), and signal is fed back to electronic control unit 1 and calculate corner.As shown in fig. 6, it is logical
Cross the calculation process output switch control signal of electronic control unit 1, realize the control to ignition system through drive circuit 51.
The present embodiment is using the wide tooth 23a-1 on iron teeth wheel 23a as the initial angle of each circle of electromotor.Four cycle engine
One working cycle of machine is two circles, you can separate half work week of before and after by the burst length of the upper and lower two wide tooth 23a-1 enclosing
Phase, such that it is able to clearly know the opportunity of igniting and oil spout, reach the purpose of precise control igniting and oil spout.
As shown in figure 14, electromotor every revolution, can obtain 89 pulse signals (89 high level and 89 low electricity
Flat, one of is initial angle).In addition to this initial angle, each high level or low level are 2 °.Using electronic control unit
1 timer function, the width of an above pulse, to segment (except the pulse width of initial angle), can divide each circle
Become 360 deciles, thus obtaining igniting and oil spout angle that precision is 1 °.By electronic control unit 1 write down a upper tooth when
Between it is possible to execution relevant action in the middle of the tooth is controlled using the time of a upper tooth by electronic control unit 1.
The present embodiment operation principle is as follows：
As shown in fig. 6, when oil door handle rotates, throttle cable drives the inner bag 21b of throttle sensor 21 to move in shell
Move so that magnetic material 21c is subjected to displacement therewith in dynamic groove 21f.Due between magnetic material 21c and Hall element 21d
There occurs relative displacement, thus leading to the magnetic field around Hall element 21d to there occurs change, changing Hall element 21d
Output voltage.The output voltage size of Hall element 21d changes, i.e. Hall element with the displacement of magnetic material 21c
The output voltage of 21d can reflect oil door handle shift size and speed, and is sent to Electronic Control by analog voltage signal
Unit 1.Electronic control unit 1 carries out conversion process to the data receiving, and obtains the movable information of oil door handle, and combines it
He analyzes and processes assist control amount, obtains aperture size needed for air throttle.The data message of aperture, electronics according to needed for air throttle
Control unit 1 is passed through to send the driving chip to motor 32 for the pulse signal, with the operating of drive stepping motor 32, Jin Ertong
The rotation crossing throttle plate pin 33 drives the unlatching of throttler valve piece 34, thus realizing the control to throttle opening.
While driving air throttle valve block 34 to rotate by motor 32, also can drive the biography equipped with U-shaped Magnet 36
Sense circle wheel 35 motion, makes the magnetic field of surrounding change, Hall element 37 exports analog voltage signal to electronic control unit 1,
Process the physical location obtaining air throttle by analysis, and then air throttle is suitably revised, thus obtaining further essence
Really control.
The fuel injection control method of common rail gasoline injection subsystem 4, its step is as follows：
(1) pressure transducer 22 being arranged on fuel oil pump main 43 measures acquisition fuel oil output pressure in real time, and with
Analogue signal feeds back to the ADC Analog-digital Converter module 11 of electronic control unit 1, obtains fuel oil output pressure by AD conversion
Data；
(2) the ADC Analog-digital Converter module 11 of electronic control unit 1 receives engine operating condition data acquisition subsystem 2
Analogue signal and judgement engine operating condition is analyzed for digital signal by AD conversion, the fuel oil obtaining in conjunction with step (1) is defeated
Go out pressure data, select suitable adjustment of oil pressure to add by central processing unit 12 from 10 default adjustment of oil pressure acceleration parameter
Velocity parameter values, obtain direct current brushless motor speed output valve by pid control algorithm, through DAC digital-to-analogue conversion module
14 conversions are sent to driven by Brush-Less DC motor module 14 to adjust the rotating speed of DC brushless motor 41 with analogue signal；
(3) DC brushless motor 41 is changed by the adjustment of rotating speed, adjusts and controls fuel oil output pressure；
(4) intervalometer 15 of electronic control unit 1 changes the frequency of pulse signal according to adjustment of oil pressure acceleration parameter value
With dutycycle and to atomizer export pwm pulse signal, to adjust the opening time of atomizer 44, obtain in conjunction with step (3)
Fuel oil output pressure after regulation, realizes the co- controlling of distributive value is obtained with the suitable distributive value of output.
As shown in figure 13, the present embodiment adopts CRANK PULSES encoder as speed probe, measure engine speed with
And engine crankshaft position information, through the calculation process output switch control signal of electronic control unit 1, by drive circuit
51 realize the control to ignition system.
Claims (7)
1. a kind of motor vehicle electric control gasoline injection system it is characterised in that：Including electronic control unit (1), engine operating condition
Data acquisition subsystem (2), Electronic Throttle Control subsystem (3), common rail gasoline injection subsystem (4), digital ignition subsystem
System (5)；Wherein,
Described engine operating condition data acquisition subsystem (2), passes including throttle sensor (21), pressure transducer (22), rotating speed
Sensor (23), gyroscope (24), oxygen sensor (25), temperature sensor (26), and be all connected on electronic control unit (1)；
Described Electronic Throttle Control subsystem (3), including valve body (31), motor (32), throttle plate pin (33), air throttle
Valve block (34), throttle displacement sensor；Described air throttle valve block (34) is located at throttle outlet and is arranged on throttle plate pin
(33) on；By sensing, circle takes turns (35), U-shaped Magnet (36) to described throttle displacement sensor, (37 form Hall element；Described biography
The avris of sense circle wheel (35) is provided with mounting groove (35a), and described U-shaped Magnet (36) is correspondingly embedded in the installation in sensing circle wheel (35)
In groove (35a), described Hall element (37) presses close to sensing circle wheel (35)；Described throttle plate pin (33) its one end and motor
(32) output shaft connects, and its other end is connected with sensing circle wheel (35)；Described throttle sensor (21) is connected with throttle cable,
And connect motor (32) through electronic control unit (1)；
Described common rail gasoline injection subsystem (4), including fuel pump (42), fuel oil pump main (43), atomizer (44)；Described
The motor of fuel pump (42) is DC brushless motor (41)；Described fuel pump (42) is communicated to through fuel oil pump main (43)
Atomizer (44)；Described pressure transducer (22) is arranged on fuel oil pump main (43) and above and through electronic control unit (1) connects
Fuel pump DC brushless motor (41) and atomizer (44)；
Described digital ignition subsystem (5), including drive circuit (51), ignition control circuit (52), spark plug (53)；Described drive
Galvanic electricity road (51) connects drive ignition control circuit (52), and described ignition control circuit (52) connects pilot spark plug (53)；Institute
State speed probe (23) to be arranged on engine shaft and connect drive circuit (51) through electronic control unit (1).
2. motor vehicle electric control gasoline injection system according to claim 1 it is characterised in that：Described throttle sensor
(21) shell (21a), inner bag (21b), magnetic material (21c), Hall element (21d) are included；It is provided with described shell (21a)
Shifting chute (21f)；Described Hall element (21d) is arranged on the outer surface of shell (21a)；Described its top of inner bag (21b) with
Throttle cable connects, and its underpart has duct (21g), and described magnetic material (21c) is arranged on the duct (21g) of inner bag (21b)
Interior；Described inner bag (21b) is arranged in the shifting chute (21f) of shell (21a) and can move up and down；Described Hall element
(21d) it is connected on electronic control unit (1).
3. motor vehicle electric control gasoline injection system according to claim 2 it is characterised in that：Described throttle sensor
(21) also include attachment cap (21e), described attachment cap (21e) its underpart is connected, its top an is limited hole with shell (21a) upper end
Set.
4. motor vehicle electric control gasoline injection system according to claim 1 it is characterised in that：Described electronic control unit
(1) include consisting of module：
ADC Analog-digital Converter module (11), for receiving described engine operating condition data acquisition subsystem (2), air throttle position
The analogue signal that Hall element (37) collection of displacement sensor sends, and be converted to digital signal, and obtain engine operating condition number
According to, fuel oil output pressure data and throttle displacement data；
Central processing unit (12), for processing, calculating the data that ADC Analog-digital Converter module (11) sends；According to system work
Condition and fuel oil output pressure data, select suitable adjustment of oil pressure acceleration ginseng from default adjustment of oil pressure acceleration parameter
Numerical value, draws direct current brushless motor speed output valve by pid control algorithm；Show that air throttle is repaiied according to throttle displacement data
Correction data, and then draw motor rotating speed output valve；
DAC digital-to-analogue conversion module (13), for turning direct current brushless motor speed output valve, motor rotating speed output valve
It is changed to analogue signal and be sent to driven by Brush-Less DC motor module (14), step motor drive module (15)；
Driven by Brush-Less DC motor module (14), for driving DC brushless motor (41) so that fuel pump (42) operates in relatively
The rotating speed answered is with control pressure value；
Step motor drive module (15), runs to corresponding throttle valve angle for drive stepping motor (32).
Intervalometer (16), calculate for rotating speed, exported according to adjustment of oil pressure acceleration parameter value pwm pulse signal to atomizer and
Control the high voltage package discharge and recharge time；
Described engine operating condition data acquisition subsystem (2), Hall element (37) are with ADC Analog-digital Converter module (11) even
Connect；Described ADC Analog-digital Converter module (11), central processing unit (12), DAC digital-to-analogue conversion module (13) connect successively
Connect；Described DAC digital-to-analogue conversion module (13) and driven by Brush-Less DC motor module (14), step motor drive module (15)
Connect；Described driven by Brush-Less DC motor module (14), step motor drive module (15), intervalometer (16) are connected respectively to combustion
Oil pump DC brushless motor (41), motor (32), atomizer (44)；Described intervalometer (16) is connected to digital ignition subsystem
The drive circuit (51) of system (5).
5. motor vehicle electric control gasoline injection system according to claim 1 it is characterised in that：Described speed probe
(23) it is CRANK PULSES encoder, including iron teeth wheel (23a), sensor element (23b)；Described iron teeth wheel (23a) is arranged on to be sent out
In motivation rotating shaft；Described sensor element (23b) presses close to iron teeth wheel (23a), sensor element (23b) include back of the body Magnetic Sensor and
Signal processing circuit, described back of the body Magnetic Sensor is connected in signal processing circuit；89 teeth are had, often on described iron teeth wheel (23a)
By being recessed and protrusion is constituted, wherein 1 tooth is wide tooth (23a-1) to individual tooth, 88 teeth are full depth tooth (23a-2)；Described width tooth
(23a-1) depression is 6 °, protrudes for 2 °, and the depression of described each full depth tooth (23a-2), protrusion are respectively 2 °.
6. motor vehicle electric control gasoline injection system according to claim 5 it is characterised in that：Described iron teeth wheel (23a)
It is 1～1.5mm with the distance between sensor element (23b).
7. the motor vehicle electric control gasoline injection system according to claim 5 or 6 it is characterised in that：Described sensor unit
It is packaged with temperature detecting resistance, described temperature detecting resistance passes through wire output signal in part (23b).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611025436.1A CN106401775B (en) | 2016-11-15 | 2016-11-15 | Electric control gasoline injection system for motorcycle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611025436.1A CN106401775B (en) | 2016-11-15 | 2016-11-15 | Electric control gasoline injection system for motorcycle |
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| CN106401775B CN106401775B (en) | 2023-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751568A (en) * | 2020-06-30 | 2020-10-09 | 内蒙航天动力机械测试所 | Data acquisition-based rotating speed real-time test system and control method |
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Effective date of registration: 20230803 Address after: No. 71 Zhongshan North Road, Fuding City, Ningde City, Fujian Province, 355299 Applicant after: FUJIAN JINGKE TECHNOLOGY CO.,LTD. Address before: Room 602, No. 240, Tianhe East Road, Tianhe District, Guangzhou, Guangdong 510620 Applicant before: GUANGZHOU JIEZHIWEN ELECTRONIC TECHNOLOGY CO.,LTD. |