CN101078376A - Automobile gasoline and alcohols mixed using method, fuel supplying system and controller - Google Patents
Automobile gasoline and alcohols mixed using method, fuel supplying system and controller Download PDFInfo
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- CN101078376A CN101078376A CNA2006101665262A CN200610166526A CN101078376A CN 101078376 A CN101078376 A CN 101078376A CN A2006101665262 A CNA2006101665262 A CN A2006101665262A CN 200610166526 A CN200610166526 A CN 200610166526A CN 101078376 A CN101078376 A CN 101078376A
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- alcohols
- nozzle
- master controller
- gasoline
- petrol jet
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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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0607—Control of components of the fuel supply system to adjust the fuel mass or volume flow
- F02D19/061—Control of components of the fuel supply system to adjust the fuel mass or volume flow by controlling fuel injectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
- F02D19/0652—Biofuels, e.g. plant oils
- F02D19/0655—Biofuels, e.g. plant oils at least one fuel being an alcohol, e.g. ethanol
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0665—Tanks, e.g. multiple tanks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
- F02D19/081—Adjusting the fuel composition or mixing ratio; Transitioning from one fuel to the other
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0673—Valves; Pressure or flow regulators; Mixers
- F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention provides a mixed using method of vehicle gasoline and alcohol, the fuel supply system and the controller. When the engine is in idling condition the alcohol nozzle is in closed condition and the assistant controller receives control data of main controller to control gasoline nozzle so that the engine works. When the idling load of engine changes the oil injection quantity can be adjusted according to the presetting condition by main controller. After the engine deviates from the idling speed the oil injection quantity of gasoline nozzle is locked in the oil injection quantity in idling speed. Alcohol nozzle works according to the oil injection quantity set by main controller and the function of accelerating enrichment and decelerating oil cutoff is maintained. Under the precondition that good running performance of vehicle can be insured, alcohol adding quantity with the maximum proportion is realized; gasoline consumption can be decreased; gasoline resource can be saved; economic cost of vehicle fuel is decreased; and the pollution to atmosphere circumstance. It is provided with good economical benefit and social benefit.
Description
Technical field
The present invention relates to a kind of automobile gasoline and mix using method and the fuel supply system controller of unifying with alcohols, be used for electro jet car, belong to automotive fuel and supply with and control system using method, the fuel supply system of gasoline and two kinds of fuel mix of the alcohols controller of unifying.
Background technique
Along with significantly improving of China's rapid economy development and all living creatures' running water standard, China is not only an automobile production big country, and becomes automobile use big country gradually, and automobile is just come into huge numbers of families with unprecedented speed.An automobile uses big country, and the energy that consumes aspect automobile is inevitable considerable.Moreover this is not the problem of our country, and this is the severe problem that the whole world faces.Global oil price is soaring, and gas price goes up, and has caused impact to industry, has also brought no small influence for autoist.The auto-maker still is that the user of automobile is seeking Energy-saving Measures and method.The research history of using at two kinds of fuel mix of gasoline and alcohols for many decades, still, is confined to the mixed method of gasoline and two kinds of fuel of alcohols all the time always, and these class methods are that both are mixed into a kind of fuel.The ratio raising that this method wants alcohols is very difficult, can only reach the most at high proportion now about 10%, and the resting period of this fuel combination of one side is limited, influences startability and power effect on the other hand.By retrieval, Chinese patent 01136415.7 provides the method for a kind of alcohols and gasoline double-fuel.This method only is conceived to the problem of alcohols gasification, and system complex is huge, needs to change the structure of former car engine injection system, only is applicable to the automobile of Carburetor form, can't adapt to the application of electro jet car.Particularly, solve the dual-fuel essential problem not at motor different to demanded fuel under idling and high speed different operating state.
Summary of the invention
One of purpose of the present invention provides a kind of automobile gasoline and mixes using method with alcohols, solves motor different to demanded fuel under idling and high speed different operating state, according to idling with at a high speed the dual-fuel ratio is adjusted; Two of purpose is to provide the gasoline of electro jet car and the dual fuel supply system of alcohols separately placed type; Three of purpose is gasoline and the alcohols dual-fuel EFI controllers that provide electro jet car.
Technological scheme of the present invention realizes:
Automobile gasoline of the present invention mixes using method and comprises gas supply and injection and alcohols supply and injection and master controller with alcohols, establishing the engine speed idling is V
0, corresponding gasoline fuel injection quantity is Q
0, V
0'=V
0+ Δ V
0, V
0' time corresponding gasoline fuel injection quantity be Q
0', Q
0With Q
0' be to represent fuel injection quantity/unit time, the present engine rotating speed is V
1, Δ V
0≤ V
0
Concrete grammar is as follows:
1) begins to start detection of engine rotating speed, present engine rotating speed V
1≤ V
0+ Δ V
0The time, with the oil spout control data control petrol jet oil spout of master controller output, and close the alcohols nozzle;
2) as engine speed V
1＞V
0+ Δ V
0The time:
A, locking petrol jet output quantity keep fuel injection quantity at Q
0～Q
0' between any value invariable, disconnect the guide line of master controller and petrol jet;
B, simultaneously the guide line of the petrol jet of alcohols nozzle and master controller is connected, be used for controlling the alcohols nozzle ejection with the control data of master controller;
C, when the alcohols nozzle can't spray Aalcohols fuel, the petrol jet guide line of master controller is connected the petrol jet drive circuit, recover the control of master controller to petrol jet;
3) if the present engine rotating speed changes V
1≤ V
0+ Δ V
0The time, stop the injection of alcohols nozzle, by main controller controls petrol jet injected petrol;
4) as above-mentioned process circulation.
2. automobile gasoline according to claim 1 mixes using method with alcohols, it is characterized in that: when adopting existing master controller to transform, the petrol jet OCL output control line of master controller is changed by fictitious load, and concrete steps are as follows:
Step 1) is as engine speed V
1≤ V
0+ Δ V
0The time, disconnect the guide line of master controller and petrol jet, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller, the oil spout control data that the master controller of sampling is again exported, and with this numerical control petrol jet oil spout, and close the alcohols nozzle;
Step 2) as engine speed V
1＞V
0+ Δ V
0The time:
A, the locking petrol jet unit time at fuel injection quantity at Q
0～Q
0' between any one the value invariable;
B, disconnect being connected of petrol jet guide line of fictitious load and master controller,, the control data of master controller is used for controlling the alcohols nozzle ejection the guide line connection of the petrol jet of alcohols nozzle and master controller;
If step 3) present engine rotating speed changes, V
1≤ V
0+ Δ V
0The time, stop the injection of alcohols nozzle, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller; The oil spout control data control petrol jet injected petrol of master controller output.
4) as above-mentioned process circulation.
Described automobile gasoline mixes using method with alcohols, its Δ V
0=± (0～V
0* 15%) or Δ V
0=V
0* 15～50% or Δ V
0=V
0* 30～80%.
A kind of gasoline of said method and dual fuel supply system of alcohols separately placed type of being used for, comprise gas supply and injection apparatus, alcohols is set in addition to be supplied with and injection apparatus 2, alcohols is supplied with and injection apparatus 2 is made up of alcohols storage box 2.1, alcohols pump 2.2, alcohols filter cleaner 2.3, alcohols delivery pipe 2.4, alcohols nozzle 2.6, alcohols reflow pipe 2.5, alcohols pressure regulator 2.7 successively, the spout of alcohols nozzle 2.6 is in air intake duct 1.14, be positioned at closure 1.11 inboards, alcohols nozzle 2.6 is connected with controller.
The dual fuel supply system of described gasoline and alcohols separately placed type, alcohols nozzle 2.6 is 4, radially direct on the circumference of air intake duct 1.14.
It is best that the dual fuel supply system of described gasoline and alcohols separately placed type, the number of its alcohols nozzle 2.6 equate with the cylinder number of motor, and correspondence is arranged in the intake manifold 1.10 air inlet places of gasoline nozzle 1.6.
The dual fuel supply system of described gasoline and alcohols separately placed type, its alcohols is supplied with and alcohols storage box 2.1 inner route clapboards 2.16 of injection apparatus are separated out an alcohols moist closet 2.10, alcohols pump 2.2 places moist closet 2.10, compensate opening 2.11 is arranged at the bottom of dividing plate 2.16, evaporation gas hole 2.12 is arranged at top, the dividing plate both sides are connected to a three-way valve 2.15 by pipeline 2.13 and 2.14, and three-way valve 2.15 is connected with alcohols reflow pipe 2.5, and the alcohols case is connected to recovering device 1.11 by pipeline 2.9.
The top of described alcohols case is connected to the canister 1.11 of gasoline recovery plant by pipeline 2.9.
The gasoline and the alcohols dual-fuel EFI controller that are used for said method, comprise master controller, the interface circuit that the nozzle guide line that master controller is exported connects, interface circuit is connected with signal acquisition processing circuit by diverter circuit, the output of signal acquisition processing circuit is connected with the input end of micro-control unit, the output terminal of micro-control unit is connected with alcohols nozzle drive circuit by diverter circuit, and the output terminal of micro-control unit is connected with the drive circuit of petrol jet; The state setting of diverter circuit comprises: in engine operation at V
1≤ V
0+ Δ V
0The time, diverter circuit disconnection master controller is connected with former car petrol jet drive circuit, simultaneously fictitious load is connected on the petrol jet guide line of master controller; When engine speed enters V
1＞V
0+ Δ V
0The time, diverter circuit is just cut off fictitious load, and the petrol jet guide line and the alcohols nozzle drive circuit of master controller are connected.
Advantage of the present invention: 1, the present invention keeps motor based on gasoline and sets idling, in motor disengaging idling enters, behind the high speed operation, the supply of Fuel Petroleum then remains at the delivery volume constant of setting idling and supplies with, alcohols enters fuel supply system as supplementary fuel, thereby the gas supply amount with the auto idle speed operation of realizing is basic constant when supplying with, with the variation of the actual motion speed of automobile and the corresponding supply of augmenting Aalcohols fuel, under the condition that keeps good startup of automobile and ride quality, the addition of alcohols is brought up to maximum, average more than 55%, the time of running at high speed is long more, and the alcohols ratio of adding is big more.Thereby the gasoline resource is saved in the minimizing gasoline consumption, reduces the vehicle fuel financial cost, reduces the pollution to atmosphere environment, and good economic benefit and social benefit are arranged.
2, alcohols course of injection heat absorption reduces air temperature, increases air density, increases air inflow, helps the abundant burning of fuel in cylinder, improves the moment of torsion and the output power of motor.
3, do not change the former car fuel supply system EFI master controller of unifying substantially, promptly under the situation that does not change former car any structure, realize the present invention.
1.4, two kinds of fuel split, and are independent of each other, and do not play chemical change, the fuel reservoir time is long.The alcohols that substitutes need not additive, antiknock agent.
5, startability is good, gasoline and alcohols dual-fuel EFI controller have kept the various functions of EFI master controller constant, degree of vacuum and engine speed according to suction tude, can spray the alcohols amount of supplying with by the corresponding control alcohols of alcohols nozzle drive circuit nozzle, with satisfy motor when the different operating mode to Fuel Demand, can be under the prerequisite of guaranteeing the good ride quality of automobile, realize substituting single Fuel Petroleum with the gasohol fuel combination of alcohols at high proportion.Circuit simply is convenient to safeguard.
Description of drawings
A kind of example structure schematic representation of Fig. 1 system of the present invention.
Second kind of example structure schematic representation of Fig. 2 system of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the alcohols storage box structural representation of system of the present invention.
Fig. 5 is gasoline of the present invention and alcohols dual-fuel EFI controller circuitry logic diagram.
Fig. 6 is the software flow pattern of gasoline of the present invention and alcohols dual-fuel EFI controller.
Embodiment
A kind of embodiment of dual fuel supply system of Fig. 1 gasoline of the present invention and alcohols separately placed type: gas supply and injection apparatus comprise gasoline carrier 1.1, petrol pump 1.2, gasoline filter 1.3, gasoline feed pipe 1.4, gasoline reflow pipe 1.5, gasoline nozzle 1.6, gasoline pressure regulator 1.7 compositions; Alcohols is supplied with and injection apparatus comprises alcohols storage tank 2.1, alcohols pump 2.2, alcohols filter cleaner 2.3, alcohols delivery pipe 2.4, alcohols reflow pipe 2.5, alcohols nozzle 2.6 alcohols pressure regulators 2.7 compositions, the number of alcohols nozzle 2.6 equates that with the cylinder number of motor correspondence is arranged in the air inlet manifold 1.10 air inlet places of gasoline nozzle 1.6.The 3rd, pilot controller, the 4th, master controller.1.8 be pilot controller and gasoline nozzle line, the 2.8th, pilot controller and alcohols nozzle line, the 1.9th, closure, the 1.11st, recovering device canister, the 1.12nd, recovering device magnetic switch, the 1.13rd, air-strainer, the 1.14th, air intake duct.Present embodiment is suitable for multicylinder engine.
Fig. 2, Fig. 3 are gasoline of the present invention and second kind of embodiment of dual fuel supply system of alcohols separately placed type: with first kind identical, gas supply and injection apparatus comprise that gasoline carrier 1.1, petrol pump 1.2, gasoline filter 1.3, gasoline feed pipe 1.4, gasoline reflow pipe 1.5, gasoline nozzle 1.6, gasoline pressure regulator 1.7 form; Alcohols is supplied with and injection apparatus, comprise alcohols storage tank 2.1, alcohols pump 2.2, alcohols filter cleaner 2.3, alcohols delivery pipe 2.4, alcohols reflow pipe 2.5, alcohols nozzle 2.6 alcohols pressure regulators 2.7 compositions, alcohols nozzle 2.6 is 4, radially direct on the circumference of air intake duct 1.14.The 3rd, pilot controller, the 4th, master controller.1.8 be pilot controller and gasoline nozzle line, the 2.8th, pilot controller and alcohols nozzle line, the 1.9th, closure, the 1.11st, recovering device canister, the 1.12nd, recovering device magnetic switch, the 1.13rd, air-strainer.Present embodiment is suitable for 4 Cylinder engines.
Fig. 4 is an alcohols storage box structural representation of the present invention:
Alcohols storage box 2.1 inner route clapboards 2.16 are separated out an alcohols moist closet 2.10, alcohols pump 2.2 places moist closet 2.10, compensate opening 2.11 is arranged at the bottom of dividing plate 2.16, evaporation gas hole 2.12 is arranged at top, the dividing plate both sides are connected to a three-way valve 2.15 by pipeline 2.13 and 2.14, and three-way valve 2.15 is connected with alcohols reflow pipe 2.5, and the top of alcohols case is connected to the canister 1.11 of gasoline recovery plant by pipeline 2.9, the alcohols Steam Recovery is utilized, eliminated gaseous contamination.Alcohols pump 2.2 places in the HEATING BOX 2.10, the position that place pipe 2.13 to lead to three-way valve 2.15 summer.Deliver to moist closet 2.10 with the position that three-way valve 2.15 places pipe 2.14 to lead to the alcohols that refluxes winter, and the temperature of the alcohols of nozzle is sent in rising, is beneficial to burning.
Fig. 5 is gasoline of the present invention and alcohols dual-fuel EFI controller circuitry logic diagram:
The present invention includes master controller and pilot controller.Pilot controller is connected by interface circuit with the output of master controller.Interface circuit is connected with signal acquisition processing circuit by diverter circuit, the output of signal acquisition processing circuit is connected with the input end of micro-control unit, the output terminal of micro-control unit is connected with alcohols nozzle drive circuit by diverter circuit, and the output terminal of micro-control unit is connected with the drive circuit of petrol jet; The state setting of diverter circuit comprises: in engine operation during at idling operation, diverter circuit will disconnect being connected of drive circuit of master controller and petrol jet; Simultaneously fictitious load is connected on the guide line of master controller; When motor disengaging idling operation entered high rotating speed, diverter circuit was just cut off fictitious load, and the guide line of alcohols nozzle drive circuit and master controller is connected.
Analogue signal (as temperature transducer, lambda sensor etc.) and control function that the present invention utilizes existing automobile master controller to gather, pilot controller is just gathered the signal of master controller and petrol jet connecting line.
The foregoing description is to utilize existing EFI master controller repacking.The nozzle connecting line of existing electro jet car master controller taken off from petrol jet be connected on the pilot controller, receive petrol jet and alcohols nozzle respectively by eight nozzle guide lines of pilot controller output.
Also can be when making master controller, the function of pilot controller added make it into as a wholely, also belong to embodiments of the invention.But its basic principle is constant, still keeps the repertoire of master controller.
Alcohols mainly refers to ethanol, methyl alcohol, particularly alcohols alcohol.The present invention also is applicable to other gasoline substitutes.
Automobile gasoline of the present invention mixes using method and comprises gas supply and injection and alcohols supply and injection and master controller with alcohols, establishing the engine speed idling is V
0, corresponding gasoline fuel injection quantity is Q
0, V
0'=V
0+ Δ V
0, V
0' time corresponding gasoline fuel injection quantity be Q
0', Q
0With Q
0' be to represent fuel injection quantity/unit time, the present engine rotating speed is V
1, Δ V
0≤ V
0
Gasoline of the present invention mixes using method and comprises gas supply and injection and alcohols supply and injection with alcohols, increase double fuel EFI pilot controller on the basis of existing master controller, controls simultaneously with master controller.
Now the software flow pattern of 6 dual-fuel EFI controllers illustrates method of the present invention in conjunction with the accompanying drawings:
Concrete grammar is as follows:
1) begins to start detection of engine rotating speed, present engine rotating speed V
1≤ V
0+ Δ V
0The time, with the oil spout control data control petrol jet oil spout of master controller output, and close the alcohols nozzle;
2) as engine speed V
1＞V
0During+Δ V:
A, locking petrol jet output quantity keep fuel injection quantity at Q
0～Q
0' between any value invariable, disconnect the guide line of master controller and petrol jet;
B, simultaneously the guide line of the petrol jet of alcohols nozzle and master controller is connected, be used for controlling the alcohols nozzle ejection with the control data of master controller;
C, when the alcohols nozzle can't spray Aalcohols fuel, the petrol jet guide line of master controller is connected the petrol jet drive circuit, recover the control of master controller to petrol jet;
3) if the present engine rotating speed changes V
1≤ V
0The time, stop the injection of alcohols nozzle, by main controller controls petrol jet injected petrol;
4) as above-mentioned process circulation.
In the process of implementing, in order to adapt to the coupling with existing master controller, added fictitious load,
Concrete grammar is as follows:
Step 1) is as engine speed V
1≤ V
0The time, disconnect the guide line of master controller and petrol jet, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller, the oil spout control data that the master controller of sampling is again exported, and with this numerical control petrol jet oil spout, and close the alcohols nozzle;
Step 2) as engine speed V
1＞V
0The time:
A, locking petrol jet unit time fuel injection quantity are at Q
0～Q
0' between any one the value invariable;
B, disconnect being connected of petrol jet guide line of fictitious load and master controller,, the control data of master controller is used for controlling the alcohols nozzle ejection the guide line connection of the petrol jet of alcohols nozzle and master controller;
If step 3) present engine rotating speed changes, V
1≤ V
0The time, stop the injection of alcohols nozzle, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller; The oil spout control data control petrol jet injected petrol of master controller output.
4) as above-mentioned process circulation.
The jet pressure of gasoline, alcohols is provided by separately motor-drive pump respectively, supply with and the concrete running of ejecting system as follows:
Behind engine start, under the situation that closure 1.9 is closed, pilot controller is by master controller detection of engine rotating speed, present engine rotating speed V
1≤ V
0' time, pilot controller makes motor remain on running in the idling scope by the gasoline injection amount of gasoline nozzle drive circuit control gasoline nozzle 1.6, and the gas supply amount when keeping this idling is constant, continues constant and supplies with;
Closure is opened, air inflow increases, engine speed improves, when engine speed increases to the idling scope when above, gas supply amount when keeping idling is constant, and adds the alcohols injection, and pilot controller is delivered to alcohols nozzle drive circuit with the control signal of master controller, the control alcohols sprays, with satisfy motor when the different operating mode to Fuel Demand.
When motor changes the setting idling over to by high speed, close the alcohols nozzle by pilot controller, promptly stop to spray alcohols, the good idle state that motor keeps the gasoline constant to supply with immediately.So along with rotating speed improves, the fuel injection pulsewidth that whenever turns around of equivalence can corresponding reducing.
Its Δ V
0=± (0～V
0* 15%) or Δ V
0=V
0* 15～50% or Δ V
0=V
0* 30～80%.
Δ V
0=0～V
0The * 15%, optimum range, core of the present invention is with near the value of engine speed idling, i.e. V
0'=V
0+ Δ V
0Separation as adding Aalcohols fuel like this, has guaranteed at this below point, fully by gasoline driven, automobile is had and the independent identical startability of gasoline of using.
But, only otherwise reduce startability, V
0' can be less than V
0Evidence at present is as idling V
0During=900r/min, V
0' can get 750r/min.Hang down again and may influence startability and idle stability.
As seen, Δ V of the present invention
0During increase, even greater than V
0* 80%, its enforcement is not in-problem, just influences the additional proportion of Aalcohols fuel.Through test, even to the exigent situation of startability, general Δ V
0=V
0* 30% has been enough.
Test situation:
One, to amount fuel consumption 11 a liters/per 100 km automobile test, 50～90 kilometers of mean velocitys, idling 4～5 times, when the constant addition of gasoline not simultaneously, concrete parameter index is:
Δ V
0Value raising speed time gasoline consumption (liter/per 100 km) alcohol consumption (liter/per 100 km)
-V
0* 15% 28 second 3.4 9.2
0 24 seconds 3.8 8.5
+ V
0* 15% 22 second 4.4 7.8
+ V
0* 30% 21 second 5.0 7.1
+ V
0* 50% 20 second 5.7 6.3
+ V
0* 80% 20 second 6.8 4.9
Obviously, V
0' be V
0The time best, both guaranteed startability, can increase the alcohols additional proportion to greatest extent again.V
0' greater than V
0Obviously more can realize, be big can influence the alcohols additional proportion too much.
Two, exhaust emissions index test data is as follows:
CO (carbon monoxide) CH (hydrocarbon) NO
X(oxynitrides)
Present technique 0.2% 0.75% slightly
The Europe secondary discharges 4% 1.1% 7%
The three grades of dischargings 2.1% 0.66% 5% in Europe
The Europe level Four discharges 1.5% 0.46% 3.5%
Three, road examination situation:
Vehicle is same, and the constant emitted dose of gasoline equals Q
0
Carried out last test on November 11st, 2006, from Wuhan, the destination is Luoshan County, Henan week party town, this road has various road surfaces such as expressway, dirt road, sand stone road, wherein expressway accounts for about 10% of system-wide journey, and mean velocity is 68 kilometers/hour about 5 hours two-way time.Maximum travel speed is 130 kilometers/hour on expressway, quicken surplus in addition, acceleration performance 0-100 kilometer/24 second, and round-trip distance is 338 kilometers, fuel consumption:
28.52 liters of (1) 95% industrial alcohol (amounting to 22.63 kilograms), average 8.44 liters/hundred kilometers, 3.81 yuan/liter of unit prices add up to: 32.16 yuan.
13.52 liters in No. 93 E10 gasoline, average 4 liters/hundred kilometers, unit price: 4.95 yuan/liter, add up to: 19.80 yuan.
Two totals: 51.96 yuan
(2) only should consume 11.3 liters/hundred kilometers in No. 93 E10 gasoline with gasoline, 4.95 yuan of unit prices amount to: 55.94 yuan
(3) economic benefit is relatively:
51.96 unit: 55.94 yuan * 100%=92.88%, save 7.12% per 100 km.
The present invention realizes under all control function situations that do not change existing master controller:
[1], at motor during at idling operation, the alcohols nozzle is in closed condition, the control data control petrol jet that pilot controller is got master controller makes engine operation and use gasoline situation is identical separately.Motor is when idling, and fuel injection quantity is adjusted by the master controller presetting condition.
[2], after motor breaks away from idling, a steady state value of the fuel injection quantity the when fuel injection quantity of petrol jet just is locked near idling, the alcohols nozzle just carries out work according to the fuel injection quantity of master controller inner setting, the function of reservation acceleration enrichment, DECEL ENLEAN.
[3], can realize starting after, fuel injection pulsewidth increases and warming-up fuel injection pulsewidth increase function.
[4], in the main controller controls oil-break, pilot controller can be controlled alcohols nozzle and petrol jet oil-break simultaneously.
[5], alcohols uses up, during alcohols nozzle fault, can recover being connected and the control function of master controller and petrol jet automatically, only recovers the operation function with gasoline.
In sum, core of the present invention is to have proposed to guarantee the constant principle of base gasoline amount, is implemented on the basis that guarantees the good startability of automobile, increases the invention thought of gasoline substitutes ratio to greatest extent.Therefore, base gasoline amount of every locking, it is any by the additional method of gasoline substitutes, equipment etc., all belongs to protection scope of the present invention.
Claims (10)
1. an automobile gasoline mixes using method with alcohols, comprises gas supply and injection and alcohols supply and injection and master controller, it is characterized in that: establishing the engine speed idling is V
0, corresponding gasoline fuel injection quantity is Q
0, V
0'=V
0+ Δ V
0, V
0' time corresponding gasoline fuel injection quantity be Q
0', Q
0With Q
0' be to represent fuel injection quantity/unit time, the present engine rotating speed is V
1, Δ V
0≤ V
0
Concrete grammar is as follows:
1) begins to start detection of engine rotating speed, present engine rotating speed V
1≤ V
0+ Δ V
0The time, with the oil spout control data control petrol jet oil spout of master controller output, and close the alcohols nozzle;
2) as engine speed V
1＞V
0+ Δ V
0The time:
A, locking petrol jet output quantity keep fuel injection quantity at Q
0～Q
0' between any value invariable, disconnect the guide line of master controller and petrol jet;
B, simultaneously the guide line of the petrol jet of alcohols nozzle and master controller is connected, be used for controlling the alcohols nozzle ejection with the control data of master controller;
C, when the alcohols nozzle can't spray Aalcohols fuel, the petrol jet guide line of master controller is connected the petrol jet drive circuit, recover the control of master controller to petrol jet;
3) if the present engine rotating speed changes V
1≤ V
0+ Δ V
0The time, stop the injection of alcohols nozzle, by main controller controls petrol jet injected petrol;
4) as above-mentioned process circulation.
2. automobile gasoline according to claim 1 mixes using method with alcohols, it is characterized in that: when adopting existing master controller to transform, the petrol jet OCL output control line of master controller is changed by fictitious load, and concrete steps are as follows:
Step 1) is as engine speed V
1≤ V
0+ Δ V
0The time, disconnect the guide line of master controller and petrol jet, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller, the oil spout control data that the master controller of sampling is again exported, and with this numerical control petrol jet oil spout, and close the alcohols nozzle;
Step 2) as engine speed V
1＞V
0+ Δ V
0The time:
A, locking petrol jet unit time output quantity keep fuel injection quantity at Q
0～Q
0' between any one the value invariable;
B, disconnect being connected of petrol jet guide line of fictitious load and master controller,, the control data of master controller is used for controlling the alcohols nozzle ejection the guide line connection of the petrol jet of alcohols nozzle and master controller;
If step 3) present engine rotating speed changes, V
1≤ V
0+ Δ V
0The time, stop the injection of alcohols nozzle, simultaneously fictitious load is connected on the petrol jet OCL output control line of master controller; The oil spout control data control petrol jet injected petrol of master controller output.
4) as above-mentioned process circulation.
3. automobile gasoline according to claim 1 and 2 mixes using method with alcohols, it is characterized in that: Δ V
1=± (0～V
0* 15%).
4. automobile gasoline according to claim 1 and 2 mixes using method with alcohols, it is characterized in that: Δ V
0=V
0* 15～50%.
5. automobile gasoline according to claim 1 and 2 mixes using method with alcohols, it is characterized in that: Δ V
0=V
0* 30～80%.
6. one kind is used for the gasoline of one of claim 1～5 method and the dual fuel supply system of alcohols separately placed type, comprise gas supply and injection apparatus, it is characterized in that: alcohols is set supplies with and injection apparatus (2), alcohols supply and injection apparatus (2) are successively by alcohols storage box (2.1), alcohols pump (2.2), alcohols filter cleaner (2.3), alcohols delivery pipe (2.4), alcohols nozzle (2.6), alcohols reflow pipe (2.5), alcohols pressure regulator (2.7) is formed, the spout of alcohols nozzle (2.6) is in air intake duct (1.14), be positioned at closure (1.11) inboard, alcohols nozzle (2.6) is connected with controller.
7. the dual fuel supply system of gasoline according to claim 6 and alcohols separately placed type is characterized in that: alcohols nozzle (2.6) is arranged in radially direct on the circumference of air intake duct (1.14).
8. the dual fuel supply system of gasoline according to claim 6 and alcohols separately placed type is characterized in that: the number of alcohols nozzle (2.6) equates that with the cylinder number of motor correspondence is arranged in intake manifold (1.10) the air inlet place of gasoline nozzle (1.6).
9. the dual fuel supply system of gasoline according to claim 6 and alcohols separately placed type, it is characterized in that: alcohols is supplied with and alcohols storage box (2.1) inner route clapboard (2.16) of injection apparatus is separated out an alcohols moist closet (2.10), alcohols pump (2.2) places moist closet (2.10), compensate opening (2.11) is arranged at the bottom of dividing plate (2.16), evaporation gas hole (2.12) is arranged at top, the dividing plate both sides are connected to a three-way valve (2.15) by pipeline (2.13) and (2.14), three-way valve (2.15) is connected with alcohols reflow pipe (2.5), the alcohols case is connected to recovering device (1.11) by pipeline (2.9)
10. a gasoline and alcohols dual-fuel EFI controller that is used for one of claim 1～5 method, comprise master controller, it is characterized in that: the nozzle guide line of master controller output is connected to interface circuit, interface circuit is connected with signal acquisition processing circuit by diverter circuit, the output of signal acquisition processing circuit is connected with the input end of micro-control unit, the output terminal of micro-control unit is connected with alcohols nozzle drive circuit by diverter circuit, and the output terminal of micro-control unit is connected with the drive circuit of petrol jet; The state setting of diverter circuit comprises: in engine operation at V
1≤ V
0+ Δ V
0The time, diverter circuit disconnection master controller is connected with former car petrol jet drive circuit, simultaneously fictitious load is connected on the petrol jet guide line of master controller; When engine speed enters V
1＞V
0+ Δ V
0The time, diverter circuit is just cut off fictitious load, and the petrol jet guide line and the alcohols nozzle drive circuit of master controller are connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101665262A CN100572777C (en) | 2006-12-28 | 2006-12-28 | Automobile gasoline mixes using method and the fuel supply system controller of unifying with alcohols |
| PCT/CN2007/071198 WO2008080331A1 (en) | 2006-12-28 | 2007-12-06 | Operation method of mixing gasoline and alcohol, fuel supply system and main controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101665262A CN100572777C (en) | 2006-12-28 | 2006-12-28 | Automobile gasoline mixes using method and the fuel supply system controller of unifying with alcohols |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101078376A true CN101078376A (en) | 2007-11-28 |
| CN100572777C CN100572777C (en) | 2009-12-23 |
Family
ID=38906004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101665262A Active CN100572777C (en) | 2006-12-28 | 2006-12-28 | Automobile gasoline mixes using method and the fuel supply system controller of unifying with alcohols |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100572777C (en) |
| WO (1) | WO2008080331A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010066184A1 (en) * | 2008-12-08 | 2010-06-17 | 上海华普汽车有限公司 | Fuel supply system for dual fuel automobile |
| CN102953847A (en) * | 2012-11-01 | 2013-03-06 | 许晨曦 | Automobile gasoline and alcohol dual-fuel supply control method and system and fixing cushion block |
| CN104870784A (en) * | 2012-11-30 | 2015-08-26 | 五十铃自动车株式会社 | Natural gas engine and operation method for natural gas engine |
| CN105020041A (en) * | 2014-04-29 | 2015-11-04 | 长城汽车股份有限公司 | Idle speed control method and system of gasoline pre-mix diesel ignition engine and vehicle |
| CN106150734A (en) * | 2015-04-28 | 2016-11-23 | 长城汽车股份有限公司 | A kind of dual fuel nozzle drive circuit and control method thereof |
| CN112523880A (en) * | 2020-11-30 | 2021-03-19 | 浙江吉利控股集团有限公司 | Vehicle engine control method and device, vehicle and computer storage medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872641A (en) * | 1981-10-26 | 1983-04-30 | Nissan Motor Co Ltd | Mixture controller of alcohol quality-improved gas engine |
| US4958598A (en) * | 1989-10-10 | 1990-09-25 | Midwest Power Concepts, Ltd. | Engine emissions control apparatus and method |
| US5526797A (en) * | 1994-01-07 | 1996-06-18 | Stokes; Richard A. | Methods and apparatus for vaporizing and utilizing fuels of various octane ratings |
| CA2398149A1 (en) * | 2000-02-11 | 2001-08-16 | Patric Ouellette | Method and apparatus for dual fuel injection into an internal combustion engine |
| CN100363605C (en) * | 2005-10-31 | 2008-01-23 | 王和平 | Method and apparatus for realizing dual fuel injection of alcohol fuel and oil fuel for combustion |
-
2006
- 2006-12-28 CN CNB2006101665262A patent/CN100572777C/en active Active
-
2007
- 2007-12-06 WO PCT/CN2007/071198 patent/WO2008080331A1/en active Application Filing
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010066184A1 (en) * | 2008-12-08 | 2010-06-17 | 上海华普汽车有限公司 | Fuel supply system for dual fuel automobile |
| CN102953847A (en) * | 2012-11-01 | 2013-03-06 | 许晨曦 | Automobile gasoline and alcohol dual-fuel supply control method and system and fixing cushion block |
| CN102953847B (en) * | 2012-11-01 | 2015-06-24 | 林长军 | Automobile gasoline and alcohol dual-fuel supply control method and system and fixing cushion block |
| CN104870784A (en) * | 2012-11-30 | 2015-08-26 | 五十铃自动车株式会社 | Natural gas engine and operation method for natural gas engine |
| US9677465B2 (en) | 2012-11-30 | 2017-06-13 | Isuzu Motors Limited | Natural gas engine and operation method for natural gas engine |
| CN105020041A (en) * | 2014-04-29 | 2015-11-04 | 长城汽车股份有限公司 | Idle speed control method and system of gasoline pre-mix diesel ignition engine and vehicle |
| CN105020041B (en) * | 2014-04-29 | 2018-03-06 | 长城汽车股份有限公司 | Gasoline premixes idle speed control, system and the vehicle of diesel oil ignited engine |
| CN106150734A (en) * | 2015-04-28 | 2016-11-23 | 长城汽车股份有限公司 | A kind of dual fuel nozzle drive circuit and control method thereof |
| CN106150734B (en) * | 2015-04-28 | 2019-04-16 | 长城汽车股份有限公司 | A kind of dual fuel nozzle driving circuit and its control method |
| CN112523880A (en) * | 2020-11-30 | 2021-03-19 | 浙江吉利控股集团有限公司 | Vehicle engine control method and device, vehicle and computer storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008080331A1 (en) | 2008-07-10 |
| CN100572777C (en) | 2009-12-23 |
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Owner name: WUHAN ZHONGCHUNHUA VEHICLE NEW ENERGY CO., LTD. Free format text: FORMER OWNER: LIU XUEWEN Effective date: 20100324 |
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Free format text: CORRECT: ADDRESS; FROM: 430023 NO.1, 2/F, UNIT 1, NO.142, CHANGWENLI, CHANGQING STREET, JIANGHAN DISTRICT, WUHAN CITY, HUBEI PROVINCE TO: 430074 NO. 6, GUANNAN INDUSTRIAL PARK, DONGHU DEVELOPMENT ZONE, WUHAN CITY, HUBEI PROVINCE |
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Effective date of registration: 20100324 Address after: 430074 South Industry Park II, -6, East Lake Development Zone, Hubei, Wuhan Patentee after: Wuhan China Alcoholization Methanol Energy Co., Ltd. Address before: 430023 Hubei province Jianghan District of Wuhan City No. 142 Evergreen Street often language unit two, No. 1 Patentee before: Liu Xuewen |