CN101418729A - Control method for self-regulating air input of engine - Google Patents
Control method for self-regulating air input of engine Download PDFInfo
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- CN101418729A CN101418729A CNA2007101131838A CN200710113183A CN101418729A CN 101418729 A CN101418729 A CN 101418729A CN A2007101131838 A CNA2007101131838 A CN A2007101131838A CN 200710113183 A CN200710113183 A CN 200710113183A CN 101418729 A CN101418729 A CN 101418729A
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Abstract
Disclosed is a control method for automatically adjusting the engine air input, which belongs to the technical field of improving the gas mixture air-fuel ratio of motor vehicle engine. The method is characterized in that a controller collects relative sensor signal data for the engine based on a target air-fuel ratio preset in the controller, and corresponding control strategy is utilized to automatically adjust and control the air demand for engine gas mixture air-fuel ratio under different conditions. the air demand for engine gas mixture air-fuel ratio under different conditions is automatically adjusted and controlled, and the optimal control for the gas mixture of the engine is performed by the control for the rotating speed ratio for a fan; the air intake charge coefficient is adjustable, the combustion of the engine cylinder is sufficient, and the combustion temperature is reduced, the power performance is improved, the emission of harmful gas is reduced, and the fuel consumption is reduced; The invention is adaptive to the fuel economy and has the advantages of environmental protection and energy conservation.
Description
Technical field
The present invention regulates control method for engine air input automatically, belongs to the technical field that improves the motor car engine gasoline air mixture ratio.
Background technique
Guaranteeing under the prerequisite of engine power performance at present, for reduce the engine oil consumption, improve its fuel oil Economy, reduce the exhaust gas discharging amount, the gas handling system of motor various technological improvements have been done, to increase air input of engine by air, making it fuel oil more fully burns, improve engine power performance etc., and obtained corresponding effects.Improvement to engine aspirating system in the prior art is: 1, to the elongated degree control of suction tude, improve volumetric efficiency to improve the air inlet resonance.2, change the shape of the original suction tude of motor, make it charge air flow and produce eddy flow, improve atomizing.3, on engine air inlet tube, install fan additional,, reduce the resistance of air intake structure such as empty filter, oil gas is mixed fully with fine setting suction pressure and air inflow.Though more than improve one's methods in engine aspirating system in various degree change the inlet condition of motor.Said apparatus is except the elongated degree control of suction tude, and other can not carry out real-time automatic adjusting control by the motor air demand, can not realize different operating mode motor optimal air-fuel ratios and the real purpose that improves fuel economy and reduce noxious gas emission.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency that prior art exists, provide a kind of, regulate air inflow automatically, make mixed gas more approach the automatic adjusting control method for engine air input of optimum target air fuel ratio value according to the working order under the Under Different Work Condition of Engine according to target air-fuel ratio value default in the controller.
The technical solution adopted for the present invention to solve the technical problems is: regulate control method for engine air input automatically, it is characterized in that: according to target air-fuel ratio value default in the controller, controller is gathered the motor relevant sensor signals, utilize corresponding control strategies, the air demand of different operating mode engine mixed gas air fuel ratios is regulated control automatically.
The motor relevant sensor signals is meant speed probe, throttle position sensor, cooling-water temperature sensor, intake air temperature sensor, air inlet pressure sensor, lambda sensor, fuel injection pulsewidth signal, cell voltage signal.
The air demand of different operating mode engine mixed gas air fuel ratios is regulated control automatically adopt the air inflow proportional control.
The air inflow proportional control is to realize by the rotating speed proportional control to blower fan.
Target air-fuel ratio value default in the controller is by engine rig test, the survey data is optimized the arteries and veins spectrum data of handling and being stored in the controller.
Control strategy is: at first system carries out program initialization, gathers the signal of motor related sensor, according to the condition criterion of different operating modes, judges the operating mode of engine running; In starting and the warming-up operating mode, during starting, motor requires dense mixed gas, and its gasoline air mixture ratio concentration is 2:1, and for smooth starting, this moment, motor carried out oil spout control by arteries and veins spectrum MAP parameter given in advance in the ECU; After the engine start, because the low fuel-oil atmozation of temperature is relatively poor, motor still needs denseer mixed gas, and this moment, controller did not participate in the rotating speed proportional control of blower fan, gathered engine water temperature T in real time
0Signal is also judged its temperature data, when reaching normal temperature.It is water temperature T
0When spending greater than 60, motor enters idling mode, and controller is judged the air inflow state, participates in the control Parameters Calculation, and controller participates in the rotation speed of fan proportional control, thereby the air inflow proportional control is in the controllable state of system;
In the acceleration, deceleration operating mode, controller picking rate n signal and throttle position signal, and when judging within a certain period of time the continuous acute variation of engine speed and throttle position aperture, motor is in the acceleration, deceleration state, and controller adopts PID proportional control strategy, judges the air inflow state, participate in the control Parameters Calculation, the output control target value, controller participates in the rotation speed of fan proportional control, thus the air inflow proportional control is in the controllable state of system;
In the steady state condition, controller is gathered the motor coherent signal, and operating mode is judged, motor preheating fully, and rotating speed does not have the situation of variation suddenly with load within a certain period of time, and when promptly being in steady state condition, controller participates in the fine setting of air inlet coefficient and controls, judge the air inflow state, participate in the control Parameters Calculation, export control target value, take the control strategy of the increasing air inlet coefficient charge of appropriateness, making it mixed gas and fully burn, is purpose to adapt to Economy.
Controller has carried out soft measurement processing by fuzzy to accurate processing method to the signal of lambda sensor.
Controller comprises microprocessor, motor relevant sensor signals and signal conditioning circuit, Drive and Control Circuit and final controlling element, the motor relevant sensor signals links to each other with microprocessor by signal conditioning circuit, and microprocessor links to each other with final controlling element by Drive and Control Circuit.
Controller is taked predictive control in advance to the Time Delay of each sensor signal and final controlling element.
Final controlling element comprises the blower fan that speed-adjustable motor, flabellum are formed.
Working principle:
Motor in operation process, alternation under 4 kinds of operating modes respectively; Promptly start and warming-up operating mode, idling operation, acceleration and decelerating mode, steady state condition.Motor requirement to air fuel ratio under different operating modes is different, is in best power performance for guaranteeing motor under different operating modes, and controller is taked different control strategies under different operating modes; For improving the responsiveness controller oxygen sensor signal has been carried out soft measurement processing by fuzzy to accurate processing method in the control procedure simultaneously, promptly utilize the oxygen sensor voltage signal that to survey to extrapolate immesurable air fuel ratio membership grade sets, extrapolate control coefrficient by the intermediate value averaging method at each in by the grade of degree of membership classification, form in the time of control and divide degree of membership control arteries and veins spectrum, as long as determine the residing grade of the condition of tabling look-up, just can adjust in real time by controlled coefficient; Controller utilizes oxygen sensor signal voltage change ratio decision state trend that final controlling element is shifted to an earlier date predictive control in order to solve the Time Delay of each sensor signal and final controlling element, thereby has realized the accurately requirement of control in real time of air input of engine by air.
The startup of motor and warming-up operating mode are in open loop situations control, and during engine start, because rotating speed is low, the fluctuation of rotating speed is big, and air inlet this moment value error is big, and motor is in low idling warm-up mode.Based on this reason, when engine start, Engine ECU is not calculated fuel injection quantity with air inflow and engine speed, but carries out oil spout control by arteries and veins given in advance in ECU spectrum MAP parameter, to avoid occurring situations such as starting difficulty, unstable idle speed, flame-out, shake.Under this operating mode, its control strategy is: controller does not participate in the air inflow proportional control.Controller will be gathered and computing in real time to the water temperature signal of motor this moment, engine water temperature temperature to be determined reaches 60 when spending, motor is with stabilized (steady-state) speed running and throttle valve bypass road complete shut-down, and this moment, motor was in running under the idling operation, and this operating mode belongs to the closed loop control process; Under the closed loop control situation, pulsation and refluence phenomenon can appear in the air inflow of motor, and under this state, its control strategy is: the Control work of controller mainly is by the rotation speed of fan proportional control, and air inflow is compensated and corrected.
Acceleration and decelerating mode belong to variable working condition; It is the emphasis of controller work that air fuel ratio under the variable working condition state is regulated.Motor is in open loop control under the variable working condition state, influenced by the motor oneself factor very big for air fuel ratio under this variable working condition state; This moment, controller adopted PID proportional control strategy, the data of surveying by the relevant sensor of motor, after utilizing embedded control strategy of microprocessor and formula analysis relatively to judge, calculate the required regulated quantity of air inflow, calculate the desired value of control target based on required regulated quantity, the based target value drives blower fan by certain rotary speed working, strengthen air inlet coefficient charge, to increase suction pressure, make proportions of ingredients approach optimum target air fuel ratio value, reach fuel oil and fully burn, improve the power and the moment of torsion of motor, simultaneously also reduce the harmful gas in the exhaust, reduced air displacement.
When motor was in steady state condition, present electronic control technology had all reached considerable effect.This controller is taked the control strategy of the increasing air inlet coefficient charge of appropriateness under this operating mode, and make it mixed gas and fully burn, be purpose to adapt to Economy.
Compared with prior art, the beneficial effect that the present invention had is: the controller that links to each other with blower fan is set, air demand to different operating mode engine mixed gas air fuel ratios is regulated control automatically, utilize the speed control principle of blower fan, and judge the work operating mode of motor according to sensing data, motor requirement to air fuel ratio under different operating modes is different, for guaranteeing that motor is in best power performance under different operating modes, adopt different control strategies according to different operating modes, after relatively judging by embedded control strategy of microprocessor and formula analysis, calculate the required regulated quantity of air inflow, calculate the desired value of control target based on required regulated quantity, drive blower fan by certain rotary speed working based on this desired value, make the air fuel ratio of motor be issued to predefined optimum value in different operating modes, its fuel oil is fully burnt, improve the power and the moment of torsion of motor, also reduced noxious gas emission simultaneously.Thereby it is controlled that the mixed gas of motor is carried out optimum, makes that the air inlet volumetric efficiency is adjustable, make the engine cylinder internal combustion more abundant, reduced combustion temperature, improved power character, reduced discharge of harmful gases, oil consumption reduces.To adapt to Economy, environmental protection and energy saving.
Description of drawings
Fig. 1: engine air inlet tube assembly structure schematic representation;
Fig. 2: controller circuitry theory diagram;
Fig. 3: controller main control strategic process figure;
Fig. 4: controller circuitry schematic diagram.
Fig. 1-the 4th, most preferred embodiment of the present invention.Wherein: 1 gas-entered passageway mouth, 2 air-strainer, 3 controllers, 4 air flow chamber, 5 blower fans, 6 fan supporters, 7 speed-adjustable motors, 8 flabellums, 9 air communication road junctions, 10 housings;
Among Fig. 4: U1 microprocessor U2 storage U3, U5, U6 operational amplifier U4 logarithmic amplifier U7 comparator U8 time base circuit U9 buffer storage U10, U13 phaselocked loop U11 phase inverter U12 gate circuit Q1-Q2 voltage stabilizing triode MG speed-adjustable motor OP1-OP4 photo coupler R1-R31 resistance C1-C13 electric capacity D1, D2 reference diode.
Embodiment
Below in conjunction with accompanying drawing 1-4 automatic adjusting control method for engine air input of the present invention is described further:
As shown in Figure 1: the suction tude assembly is made up of gas-entered passageway mouth 1, air-strainer 2, controller 3, air flow chamber 4, blower fan 5, air communication road junction 9 and housing 10; Wherein, blower fan 5 is made up of fan supporter 6, speed-adjustable motor 7, flabellum 8; Ambient atmos enters air-strainer 2 through gas-entered passageway mouth 1, carries out purification filtering after air flow chamber 4 enters motor by air communication road junction 9 through 2 pairs of institutes of air-strainer air inlet body; Controller 3 is connected with the speed-adjustable motor 7 of blower fan 4.
As shown in Figure 2: microprocessor is gathered the motor relevant sensor signals by signal conditioning circuit, promptly gather speed probe, throttle position sensor, cooling-water temperature sensor, intake air temperature sensor, air inlet pressure sensor, lambda sensor, fuel injection pulsewidth signal, cell voltage signal etc., judge the work operating mode of motor, adopt Different Strategies according to different operating modes, controller participates in the rotation speed of fan proportional control, thereby the air inflow proportional control is in the controllable state of system.
As shown in Figure 3: at first system carries out program initialization, gathers the signal of motor related sensor, according to the condition criterion of different operating modes, judges the operating mode of engine running; In starting and the warming-up operating mode, during starting, motor requires dense mixed gas, and its gasoline air mixture ratio concentration is 2:1, and for smooth starting, this moment, motor carried out oil spout control by arteries and veins spectrum MAP parameter given in advance in the ECU; After the engine start, because the low fuel-oil atmozation of temperature is relatively poor, motor still needs denseer mixed gas, and this moment, controller did not participate in the rotating speed proportional control of blower fan, gathered engine water temperature T in real time
0Signal is also judged its temperature data, when reaching normal temperature.It is water temperature T
0When spending greater than 60, motor enters idling mode, and controller is judged the air inflow state, participates in the control Parameters Calculation, and controller participates in the rotation speed of fan proportional control, thereby the air inflow proportional control is in the controllable state of system;
In the acceleration, deceleration operating mode, controller picking rate n signal and throttle position signal, and when judging within a certain period of time the continuous acute variation of engine speed and throttle position aperture, motor is in the acceleration, deceleration state, and controller adopts PID proportional control strategy, judges the air inflow state, participate in the control Parameters Calculation, the output control target value, controller participates in the rotation speed of fan proportional control, thus the air inflow proportional control is in the controllable state of system;
In the steady state condition, controller is gathered the motor coherent signal, and operating mode is judged, motor preheating fully, and rotating speed does not have the situation of variation suddenly with load within a certain period of time, and when promptly being in steady state condition, controller participates in the fine setting of air inlet coefficient and controls, judge the air inflow state, participate in the control Parameters Calculation, export control target value, take the control strategy of the increasing air inlet coefficient charge of appropriateness, making it mixed gas and fully burn, is purpose to adapt to Economy.
As shown in Figure 4:, U1 is that microprocessor, U2 are storage, U3 operational amplifier, U4 logarithmic amplifier, U5 operational amplifier, U6 transport and placing device, U7 comparator, U8 time base circuit, U9 buffer storage, U10 phaselocked loop, U11 phase inverter, U12 gate circuit, U13 phaselocked loop, Q1-Q2 are that voltage stabilizing triode, MG are that speed-adjustable motor, OP1-OP4 are photo coupler.
Form controller by microprocessor U1 and peripheral circuit thereof, microprocessor U1 adopts a kind of 8 microprocessor microcontrollers of the 78k0 of NEC Corporation series, embedded control strategy and computational methods, according to different operating modes, adopt corresponding control strategies, participate in the control Parameters Calculation, the export target value is carried out the air inflow proportional control by the rotating speed proportional control to blower fan 5.
The X1 of microprocessor U1, X2 pin link to each other with transistor Y1, and respectively by capacitor C 1, C2 ground connection; The P62 pin of microprocessor U1 is connected with 1 pin of voltage stabilizing triode Q1 by resistance R 3, the 3 pin ground connection of voltage stabilizing triode Q1, and 2 pin are connected with 1 pin of voltage stabilizing triode Q2; The 3 pin ground connection of voltage stabilizing triode Q2, and meet high level VCC by reference diode D1, D2,2 pin link to each other with the negative pole of motor M G, and the positive pole of MG meets high level VCC.
Form data storage cell by storage U2 and peripheral circuit thereof, data are stored.
1,2,3,4, the 7 pin ground connection of storage U2,8 pin meet high level VCC; 5,6 pin of storage U2 link to each other with P40, the P41 of microprocessor U1, and meet high level VCC by resistance R 1, R2 respectively.
Form the oxygen sensor signal acquisition and conditioning circuit by operational amplifier U3, logarithmic amplifier U4, operational amplifier U5 and peripheral circuit thereof, oxygen sensor signal is imported logarithmic amplifier U5 after operational amplifier U4 carries out 10 times of amplifications to current signal, after the 10 pin output of logarithmic amplifier U5, carry out I-V through operational amplifier U6 and be transformed to the P27 pin that the 5-0V voltage signal is input to microprocessor U1, participate in the control Parameters Calculation.
2 pin of operational amplifier U3 connect oxygen sensor signal, link to each other with 6 pin by resistance R 5; 3 pin of operational amplifier U3 link to each other with 2 pin of logarithmic amplifier U4, link to each other with 6 pin of operational amplifier U3 by resistance R 6, and connect the VCC high level by resistance R 7.2 pin of logarithmic amplifier U4 link to each other with 7 pin of logarithmic amplifier U4 by capacitor C 7; 6 pin of logarithmic amplifier U4 are by resistance R 8, capacitor C 6 ground connection; 15 pin of logarithmic amplifier U4 are by resistance R 9, adjustable resistance VR2 ground connection; 16 pin of logarithmic amplifier U4 connect the VCC high level by resistance R 10, adjustable resistance VR1; 11 pin of logarithmic amplifier U4 connect the VCC high level.10 pin of logarithmic amplifier U4 link to each other with 2 pin of operational amplifier U6 by resistance R 11, and by resistance R 12 ground connection; 2 pin of operational amplifier U6 link to each other with 6 pin by resistance R 13; 6 pin of operational amplifier U5 connect the P27 pin of microprocessor U1; The 3 pin ground connection of operational amplifier U5.
Form the throttle position sensor signal acquisition and conditioning circuit by transport and placing device U6 and peripheral circuit thereof, after transport and placing device U6 amplifies its signal, be input to the P25 pin of microprocessor U1, participate in the control Parameters Calculation.
2 pin of transport and placing device U6 connect sensor signal by resistance R 14, and link to each other with 1 pin of transport and placing device U6 by resistance R 16; 3 pin are by resistance R 15 ground connection; 4 pin meet high level VCC, and by capacitor C 5 ground connection; 1 pin of transport and placing device U6 links to each other with the P25 pin of microprocessor U1 by resistance R 17.
Form the temperature sensor signal acquisition and conditioning circuit by comparator U7 and peripheral circuit thereof, coolant-temperature gage signal, intake air temperature signals are converted to analog voltage signal by the serial connection divider resistance to be declared for comparator U7 ratio, comparator U7 exports P23, the P24 pin that digital signal is input to microprocessor U1 successively, judges by microprocessor U1 to start and the warming-up operating mode.
2 pin of comparator U7 connect coolant-temperature gage signal, intake air temperature signals successively, and 2 pin also connect the VCC high level by resistance R 18; 1 pin of comparator U7 connects P23, the P24 pin of microprocessor U1 successively; 3 pin of comparator U7 connect the VCC high level by resistance R 20 ground connection by resistance R 19; 8 pin connect the VCC high level and pass through capacitor C 6 ground connection.
Form the signals of rotational speed sensor acquisition and conditioning circuit by time base circuit U8 and peripheral circuit thereof, it is used to offer microprocessor U1 collection after tach signal is nursed one's health through time base circuit U8, participates in the control Parameters Calculation.
The 1 pin ground connection of time base circuit U8,2 pin connect tach signal, and 3 pin connect the 1st pin of photo coupler OP1 by resistance R 22; 4 pin of time base circuit U12,8 pin connect the VCC high level, and 5 pin are by capacitor C 7 ground connection; 6 pin, 7 pin of time base circuit U8 link to each other, and connect the VCC high level by resistance R 21, and by capacitor C 8 ground connection.The 3rd pin of photo coupler OP1 connects the P04 pin of microprocessor U1, and connects the VCC high level by resistance R 23; 2, the 4 pin ground connection of photo coupler OP3.
Enter phaselocked loop U10 and peripheral circuit is formed the intake pressure sensor signal acquisition and conditioning circuit by buffer storage U9, the suction pressure signal enters phaselocked loop U10 through buffer storage U9 and carries out the V/F conversion treatment, be input to the P03 pin of microprocessor U1, participate in the control Parameters Calculation.
4 pin of phaselocked loop U10 connect the 1st pin of photo coupler OP2; The 5 pin ground connection of phaselocked loop U10 are connected with capacitor C 10 between 6 pin and 7 pin; 9 pin of phaselocked loop U10 are connected suction pressure by buffer storage U9 with resistance R 24, and 9 pin are also by capacitor C 9 ground connection; 11 pin are by resistance R 25 ground connection.2, the 4 pin ground connection of photo coupler OP2; The 3rd pin of photo coupler OP2 connects the P03 pin of microprocessor U1, and connects the VCC high level by resistance R 26.
Form fuel injection signal pulse width discriminating circuit by phase inverter U11 and gate circuit U12 and peripheral circuit thereof, be input to the INTP3 pin of microprocessor U1, participate in the control Parameters Calculation.
1 pin of phase inverter U11 connects the VCC high level by resistance R 28, connects oil spout gas signal by capacitor C 12, and capacitor C 11 and resistance R 28 series connections are between an end and ground of capacitor C 12; 2 pin of phase inverter U11 connect 1 pin of gate circuit U12.2 pin of gate circuit U12 are by resistance R 28 ground connection, and 3 pin connect the 1st pin of photo coupler OP3; 2, the 4 pin ground connection of photo coupler OP3, the 3rd pin of photo coupler OP3 connects the INTP3 pin of microprocessor U1 successively.
Form power sense circuit by phaselocked loop U13 and peripheral circuit thereof, be input to the P12 pin of microprocessor U1, participate in the control Parameters Calculation.
4 pin of phaselocked loop U13 connect the 4th pin of photo coupler OP4; Be connected with capacitor C 13 between 6 pin of phaselocked loop U13 and 7 pin; 9 pin of phaselocked loop U13 connect battery voltage by resistance R 29, and 9 pin are also by resistance R 30 ground connection; 11 pin of phaselocked loop U13 are by resistance R 31 ground connection.1, the 3 pin ground connection of photo coupler OP4, the 2nd pin of photo coupler OP4 connects the P12 pin of microprocessor U1.
Working procedure:
During engine running, according to target air-fuel ratio value default in the controller, controller is gathered the relevant speed probe of motor, throttle position sensor, cooling-water temperature sensor, intake air temperature sensor, air inlet pressure sensor, lambda sensor, operative sensor signals such as fuel injection pulsewidth obtain data, and judge the work operating mode of motor according to sensing data, motor requirement to air fuel ratio under different operating modes is different, for guaranteeing that motor is in best power performance under different operating modes, adopt different control strategies according to different operating modes, after relatively judging by embedded control strategy of microprocessor and formula analysis, calculate the required regulated quantity of air inflow, calculate the desired value of control target based on required regulated quantity, drive blower fan by certain rotary speed working based on this desired value, improve suction pressure and air inflow; For improving the responsiveness controller oxygen sensor signal has been carried out the real-time adjustment that soft measurement is handled by fuzzy to accurate processing method in the control procedure simultaneously; In order to solve the Time Delay of each sensor signal and final controlling element, utilize oxygen sensor signal voltage change ratio decision state trend that final controlling element is shifted to an earlier date predictive control; Thereby make the air fuel ratio of motor be issued to predefined optimum value, its fuel oil is fully burnt, improve the power and the moment of torsion of motor, also reduced noxious gas emission simultaneously in different operating modes.
Claims (10)
1, regulates control method for engine air input automatically, it is characterized in that: according to target air-fuel ratio value default in the controller, controller is gathered the motor relevant sensor signals, utilizes corresponding control strategies, and the air demand of different operating mode engine mixed gas air fuel ratios is regulated control automatically.
2, according to the described automatic adjusting control method for engine air input of claim 1, it is characterized in that: the motor relevant sensor signals is meant speed probe, throttle position sensor, cooling-water temperature sensor, intake air temperature sensor, air inlet pressure sensor, lambda sensor, fuel injection pulsewidth signal, cell voltage signal.
3, automatic adjusting control method for engine air input according to claim 1 is characterized in that: the air demand of different operating mode engine mixed gas air fuel ratios is regulated control automatically adopt the air inflow proportional control.
4, automatic adjusting control method for engine air input according to claim 3 is characterized in that: the air inflow proportional control is to realize by the rotating speed proportional control to blower fan.
5, according to the described automatic adjusting control method for engine air input of claim 1, it is characterized in that: target air-fuel ratio value default in the controller is by engine rig test, the survey data is optimized the arteries and veins spectrum data of handling and being stored in the controller.
6, automatic adjusting control method for engine air input according to claim 1, it is characterized in that: control strategy is: at first system carries out program initialization, gather the signal of motor related sensor,, judge the operating mode of engine running according to the condition criterion of different operating modes; In starting and the warming-up operating mode, during starting, motor requires dense mixed gas, and its gasoline air mixture ratio concentration is 2:1, for smooth starting, this moment, motor carried out oil spout control by arteries and veins spectrum MAP parameter given in advance in the ECU, after the engine start, because the low fuel-oil atmozation of temperature is relatively poor, motor still needs denseer mixed gas, this moment, controller did not participate in the rotating speed proportional control of blower fan, gathered engine water temperature T in real time
0Signal is also judged its temperature data, when reaching normal temperature, i.e. and water temperature T
0When spending greater than 60, motor enters idling mode, and controller is judged the air inflow state, participates in the control Parameters Calculation, and controller participates in the rotation speed of fan proportional control, thereby the air inflow proportional control is in the controllable state of system; In the acceleration, deceleration operating mode, controller picking rate n signal and throttle position signal, and when judging within a certain period of time the continuous acute variation of engine speed and throttle position aperture, motor is in the acceleration, deceleration state, and controller adopts PID proportional control strategy, judges the air inflow state, participate in the control Parameters Calculation, the output control target value, controller participates in the rotation speed of fan proportional control, thus the air inflow proportional control is in the controllable state of system; In the steady state condition, controller is gathered the motor coherent signal, and operating mode is judged, motor preheating fully, and rotating speed does not have the situation of variation suddenly with load within a certain period of time, and when promptly being in steady state condition, controller participates in the fine setting of air inlet coefficient and controls, judge the air inflow state, participate in the control Parameters Calculation, export control target value, take the control strategy of the increasing air inlet coefficient charge of appropriateness, making it mixed gas and fully burn, is purpose to adapt to Economy.
7, automatic adjusting control method for engine air input according to claim 2 is characterized in that: controller has carried out soft measurement processing by fuzzy to accurate processing method to the signal of lambda sensor.
8, automatic adjusting control method for engine air input according to claim 1, it is characterized in that: controller comprises microprocessor, motor related sensor, signal conditioning circuit, Drive and Control Circuit and final controlling element, the motor related sensor links to each other with microprocessor by signal conditioning circuit, and microprocessor links to each other with final controlling element by Drive and Control Circuit.
9, according to claim 1,2 or 8 described automatic adjusting control method for engine air input, it is characterized in that: controller is taked predictive control in advance to the Time Delay of each sensor signal and final controlling element.
10, automatic adjusting control method for engine air input according to claim 8 is characterized in that: final controlling element comprises blower fan and the suction tude assembly that speed-adjustable motor, flabellum are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101131838A CN101418729B (en) | 2007-10-22 | 2007-10-22 | Control method for self-regulating air input of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101131838A CN101418729B (en) | 2007-10-22 | 2007-10-22 | Control method for self-regulating air input of engine |
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| CN101418729A true CN101418729A (en) | 2009-04-29 |
| CN101418729B CN101418729B (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101131838A Expired - Fee Related CN101418729B (en) | 2007-10-22 | 2007-10-22 | Control method for self-regulating air input of engine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787948A (en) * | 2010-04-07 | 2010-07-28 | 杨斌城 | Air inlet device of internal combustion engine |
| CN102808701A (en) * | 2011-06-03 | 2012-12-05 | 上海坤孚企业(集团)有限公司 | Intelligent electronic-control fuel supply system and intelligent electronic-control fuel supply method applied to gasoline engine |
| CN102817731A (en) * | 2012-08-15 | 2012-12-12 | 广东西电动力科技股份有限公司 | Waste gas purification apparatus for diesel generating set |
| CN103485910A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation) |
| CN109083758A (en) * | 2018-09-05 | 2018-12-25 | 淄博众思源汽车技术股份有限公司 | Automotive air intake is pressurized intelligence control system |
| CN113294266A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Air-fuel ratio regulating and controlling device and method for compressor |
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| CN102852625B (en) * | 2012-10-11 | 2014-03-12 | 石家庄核光电子科技有限公司 | Engine transient air-intake control system and control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4500595B2 (en) * | 2004-06-15 | 2010-07-14 | 本田技研工業株式会社 | Control device for internal combustion engine |
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- 2007-10-22 CN CN2007101131838A patent/CN101418729B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787948A (en) * | 2010-04-07 | 2010-07-28 | 杨斌城 | Air inlet device of internal combustion engine |
| CN102808701A (en) * | 2011-06-03 | 2012-12-05 | 上海坤孚企业(集团)有限公司 | Intelligent electronic-control fuel supply system and intelligent electronic-control fuel supply method applied to gasoline engine |
| CN102808701B (en) * | 2011-06-03 | 2015-08-05 | 上海坤孚企业(集团)有限公司 | A kind ofly be applied in intelligent electric-controlled oil supply system on petrol engine and fuel supply method thereof |
| CN102817731A (en) * | 2012-08-15 | 2012-12-12 | 广东西电动力科技股份有限公司 | Waste gas purification apparatus for diesel generating set |
| CN103485910A (en) * | 2013-10-15 | 2014-01-01 | 东北石油大学 | Improved engine control method controlled by multiple working conditions PID (proportion integration differentiation) |
| CN103485910B (en) * | 2013-10-15 | 2016-05-18 | 东北石油大学 | The engine control that a kind of improved multi-state PID controls |
| CN109083758A (en) * | 2018-09-05 | 2018-12-25 | 淄博众思源汽车技术股份有限公司 | Automotive air intake is pressurized intelligence control system |
| CN109083758B (en) * | 2018-09-05 | 2020-10-30 | 淄博众思源汽车技术股份有限公司 | Intelligent control system for automobile air intake pressurization |
| CN113294266A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Air-fuel ratio regulating and controlling device and method for compressor |
| CN113294266B (en) * | 2020-02-21 | 2022-07-05 | 中国石油天然气股份有限公司 | Air-fuel ratio regulating and controlling device and method for compressor |
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| CN101418729B (en) | 2011-06-29 |
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