CN104769261B - The control method of the control device of diesel engine, diesel engine and diesel engine - Google Patents
The control method of the control device of diesel engine, diesel engine and diesel engine Download PDFInfo
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- CN104769261B CN104769261B CN201380056086.3A CN201380056086A CN104769261B CN 104769261 B CN104769261 B CN 104769261B CN 201380056086 A CN201380056086 A CN 201380056086A CN 104769261 B CN104769261 B CN 104769261B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
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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
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0689—Injectors for in-cylinder direct injection
-
- 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
- F02D19/10—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 peculiar to compression-ignition engines in which the main fuel is gaseous
- F02D19/105—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 peculiar to compression-ignition engines in which the main fuel is gaseous operating in a special mode, e.g. in a liquid fuel only mode for starting
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- 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 present invention provides the control method of a kind of control device of diesel engine, diesel engine and diesel engine, the ECU that the dual-fuel diesel engine of the present invention possesses carries out speed regulating control, and it is only supplied oil fuel when load factor is below switching load factor, gaseous fuel is initially supplied when load factor exceedes switching load factor, and with different controlled quentity controlled variable control gaseous fuels and oil fuel, and the aggregate supply heat of gaseous fuel and oil fuel is increased with the rising of load.When load factor exceedes switching load factor, the fuel control unit that ECU possesses is initially supplied gaseous fuel, and it is constant to be set to no matter load the quantity delivered for whether rising gaseous fuel, and the quantity delivered of oil fuel is increased with the rising of load.
Description
Technical field
The present invention relates to the control method of a kind of control device of diesel engine, diesel engine and diesel engine.
Background technology
It is known to have a kind of following diesel engine (hereinafter referred to as " dual-fuel diesel engine "), i.e. to make the gaseous fuels such as natural gas
For main fuel, using the good oil fuel of compressing inflammable as pilot fuel, and combustion chamber at high temperature make oil fuel from
Combustion, so that being used as the gas fuel combustion of main fuel.Because dual-fuel diesel engine uses gaseous fuel, therefore CO during burning2
It is less, and the harmful substance such as the black smoke discharged is also less.
Make for example, have disclosed in patent document 1 gaseous fuel etc. compressing flammable poor low cetane fuel
For main fuel and using the preferable oil fuel of compressing inflammable as pilot fuel dual-fuel diesel engine.The hair of the patent document 1
Motivation possesses the gas fuel injection valves and pilot fuel injection valve for being arranged at cylinder cap, by from these gas fuel injection valves and
Pilot fuel injection valve makes pilot fuel spontaneous combustion to combustion chamber gas injection fuel and pilot fuel in the combustion chamber of high temperature,
So that main fuel burns.
Conventional art document
Patent document
Patent document 1：Japanese Unexamined Patent Publication 62-45339 publications
The summary of invention
The invention technical task to be solved
However, not specifically disclosing the method that oil fuel and gaseous fuel are supplied to diesel engine in patent document 1.Moreover,
Become problem using the operation of oil fuel and the stabilization of gaseous fuel in dual-fuel diesel engine.
The present invention is to complete in light of this situation, and its object is to provide a kind of to reduce the use of oil fuel
Amount, and realize control device, diesel engine and the diesel engine of the diesel engine of the operation for the stabilization for using oil fuel and gaseous fuel
Control method.
Means for solving technical task
In order to solve above-mentioned problem, the control method of the control device of diesel engine of the invention, diesel engine and diesel engine is adopted
Use following means.
The control device of diesel engine involved by the 1st aspect of the present invention is by gaseous fuelled and oil fuel
The control device of the diesel engine of operation, it possesses：Speed regulating control means, carry out speed regulating control；And fuel control device, work as diesel oil
The load of machine is only supplied the oil fuel when being below setting；It is initially supplied when the load exceedes the setting described
Gaseous fuel, and the gaseous fuel and the oil fuel are controlled with different controlled quentity controlled variables, and make the gaseous fuel and institute
The aggregate supply heat for stating oil fuel rises with the rising of the load, and when the load exceedes the setting,
Make the climbing of the quantity delivered of the oil fuel smaller than the climbing being supported on when below the setting or be
It is constant.
According to this structure, the control device control of diesel engine is supplied to the supply of the gaseous fuel and oil fuel of diesel engine
Amount.The speed regulating control for being fed through being carried out by speed regulating control means of gaseous fuel and oil fuel is carried out.
When the load of diesel engine is below setting, fuel control device is only supplied oil fuel.Load for setting with
Under situation when referring to low-load.The compressing inflammable of oil fuel is better than gaseous fuel, therefore by only being supplied in low-load
To oil fuel, diesel engine can also realize stable operation in low-load.
Also, when load exceedes setting, fuel control device is initially supplied gaseous fuel, and with different controlled quentity controlled variables
Gaseous fuel and oil fuel are controlled, and the aggregate supply heat of gaseous fuel and oil fuel is increased with the rising of load.
Thus, this structure can reduce the oil fuel usage amount of diesel engine.Also, this structure controls gaseous fuel with different controlled quentity controlled variables
And oil fuel, different controls are carried out to gaseous fuel and oil fuel therefore, it is possible to cater to its purpose.
Thus, this structure reduces the usage amount of oil fuel, and realizes the fortune of the stabilization using oil fuel and gaseous fuel
OK.
In above-mentioned first method, it is preferably that, when the load exceedes the setting, the fuel control device is opened
Begin the supply gaseous fuel, and no matter described be set to and load whether to rise the quantity delivered of the gaseous fuel be constant, and
And the oil fuel quantity delivered is increased with the rising of the load.
According to this structure, the rising with load independently makes the quantity delivered of gaseous fuel be constant, makes the supply of oil fuel
Amount rises with the rising of load, therefore carries out speed regulating control by oil fuel.Moreover, this structure makes the supply of gaseous fuel
Measure to be constant, therefore when the surplus of gaseous fuel is less, can also use gaseous fuel to run diesel engine.
In above-mentioned first method, it is preferably that, when the load exceedes the setting, foregoing fuel control device makes
The quantity delivered of These gases fuel rises over time, to reach the constant quantity delivered.
When load exceedes fixed value, if being supplied after gaseous fuel is rapidly increased, it is likely that make diesel engine
Rotating speed is drastically accelerated.Now, in order to lower accelerated rotating speed, fuel feed is reduced by speed regulating control, as a result, can
Can occur such as rotating speed and excessively decline so-called contact chatter.
According to the present invention, by making the quantity delivered of gaseous fuel rise over time until quantity delivered is constant, to suppress
The rotating speed of diesel engine is drastically accelerated, therefore, it is possible to prevent the generation of contact chatter.
In above-mentioned first method, be preferably, when it is described load exceed the setting when, the fuel control device with
The ratio between the gaseous fuel and the oil fuel reach that the mode of predetermined value supplies the gaseous fuel and the oil fuel.
According to this structure, the multifuel combustion ratio of any setting gaseous fuel and oil fuel, therefore, it is possible in the state of optimal
Run diesel engine.
In above-mentioned first method, it is preferably that, when the load exceedes the setting, the fuel control device is opened
Begin the supply gaseous fuel, and no matter described be set to and load whether to rise the quantity delivered of the oil fuel be constant, and
The quantity delivered of the gaseous fuel is set to increase with the rising of the load.
According to this structure, no matter load and whether rise oil fuel to be constant, and make the quantity delivered of gaseous fuel with negative
The rising of load and rise, therefore utilize gaseous fuel carry out speed regulating control.Moreover, the quantity delivered of oil fuel is set to permanent by this structure
It is fixed, therefore, it is possible to reduce the usage amount of oil fuel, and the effect passed through obtained by gaseous fuel is played to greatest extent.
Diesel engine involved by the 2nd aspect of the present invention possesses：Gas fuel injection valves, fire to combustion chamber gas injection
Material；Oil fuel injection valve, oil fuel is sprayed to the fuel chambers；And above-mentioned described control device.
The control method of diesel engine involved by the 3rd aspect of the present invention is by gaseous fuelled and oil fuel
The control method of the diesel engine of operation, this method includes：1st process, is only supplied when the load of diesel engine is below setting
The oil fuel；2nd process, the gaseous fuel is initially supplied when the load exceedes the setting；And the 3rd process,
The gaseous fuel and the oil fuel are controlled with different controlled quentity controlled variable, and make the total of the gaseous fuel and the oil fuel
Supply heat rises with the rising of the load, and when the load exceedes the setting, makes the oil fuel
Quantity delivered climbing it is smaller than the climbing being supported on when below the setting or to be constant.
Invention effect
In accordance with the invention it is possible to be reduced the usage amount of oil fuel and realize the stabilization for using oil fuel and gaseous fuel
Operation excellent effect.
Brief description of the drawings
Fig. 1 is the structure chart of the dual-fuel diesel engine involved by the 1st embodiment of the present invention.
Fig. 2 is the block diagram for the electric structure for representing the ECU involved by the 1st embodiment of the present invention.
Fig. 3 be represent the present invention the 1st embodiment involved by oil fuel and gaseous fuel fuel control instruction it
And the chart of the relation between load factor.
Fig. 4 is to represent the relation between the load factor and oil fuel control instruction involved by the 1st embodiment of the present invention
And the chart of the relation between load factor and gaseous fuel control instruction.
Fig. 5 is to represent the relation between the load factor and oil fuel control instruction involved by the 2nd embodiment of the present invention
And the chart of the relation between load factor and gaseous fuel control instruction.
Fig. 6 is to represent the relation between the load factor and oil fuel control instruction involved by the 3rd embodiment of the present invention
And the chart of the relation between load factor and gaseous fuel control instruction.
Fig. 7 is to represent the relation between the load factor and oil fuel control instruction involved by the 4th embodiment of the present invention
And the chart of the relation between load factor and gaseous fuel control instruction.
Embodiment
Hereinafter, refer to the attached drawing, to the controlling party of the control device, diesel engine and diesel engine of diesel engine involved in the present invention
One embodiment of method is illustrated.
[the 1st embodiment]
Hereinafter, the 1st embodiment to the present invention is illustrated.
Diesel engine involved by this 1st embodiment is to use gaseous fuel as main fuel and make as pilot fuel
The dual-fuel diesel engine run with oil fuel, is used for example as the main frame of ship.
Fig. 1 is the structure chart of the dual-fuel diesel engine 1 involved by this 1st embodiment.
Dual-fuel diesel engine 1 possess cylindric cylinder body 2, be incorporated into the cylinder body 2 upper end side cylinder cap 3 and movably
It is contained in the piston 4 inside cylinder body 2.Also, the top surface 4a of the perisporium 2a, cylinder cap 3 and piston 4 by these cylinder bodies 2 form combustion
Burn room c.
In addition, the symbol 5 in accompanying drawing represents piston ring.
There is the scavenging port 6 of opening in the perisporium 2a of the lower side of cylinder body 2.The scavenging port 6 is formed near lower dead center
Piston 4 top surface 4a (being represented in figure with double dot dash line) top position, when piston 4 be located at lower dead center near when, from scavenging
Mouth 6 is supplied to combustion chamber c.Also, at the top of cylinder cap 3 there is the exhaust outlet of opening, and be additionally provided with and be opened and closed the exhaust outlet
Air bleeding valve 7.When scavenging stroke of the piston 4 in up stroke, the air bleeding valve 7 is opened, until piston 4 arrives at top dead centre
Immediately following first about 100 ° of position.Also, by being supplied from scavenging port 6 to combustion chamber c air, residue in moving ahead for combustion chamber c
The waste gas of journey is swept out.
In cylinder cap 3, the gas fuel injection valves 8 of oriented combustion chamber c gas injection fuel are set, and be provided with it is same to
The oil fuel injection valve 10 of the good oil fuel of combustion chamber c injection compressing inflammables.The gas fuel injection valves 8 and oil fuel spray
Penetrate valve 10 and separate 180 ° of position in a circumferential direction using cylinder body center O as pivot and be respectively arranged with 1.
In addition, in this 1st embodiment, 4 are respectively arranged with gas fuel injection valves 8 and oil fuel injection valve 10
Spray orifice, but do not limited for the setting quantity of gas fuel injection valves 8 and oil fuel injection valve 10, for example, it is also possible to be 1
It is individual.However, for the embodiment of sheet the 1st that air bleeding valve 7 is provided with the top of cylinder cap 3, preferably multiple gaseous fuel injections
Valve 8 and oil fuel injection valve 10 are equally spaced configured in a circumferential direction respectively.
Moreover, gas fuel injection valves 8 and oil fuel injection valve 10 via cable 14 be connected to control unit of engine (with
It is referred to as " ECU " down) 12.
ECU12 is connected to the crank angle sensor 15 of the anglec of rotation of detection bent axle 17 via cable 16.Moreover, by from song
Handle angle transducer 15 receives the signal relevant with the anglec of rotation of bent axle 17 to detect the phase of piston 4.Also, gaseous fuel sprays
Valve 8 and oil fuel injection valve 10 are penetrated based on the signal sent from ECU12, the regulation moment to combustion chamber c gas injections fuel and
Oil fuel.
Fig. 2 is the block diagram for the electric structure for representing the ECU12 involved by the 1st embodiment.
ECU12 possesses speed regulating control portion 30 and fuel control unit 32.
Speed regulating control portion 30, after the setting speed and actual speed of input dual-fuel diesel engine 1, based on setting speed
Residual quantity between actual speed carries out speed regulating control, so that actual speed turns into setting speed.In addition, speed regulating control portion 30 is also
Speed regulating control can be carried out based on the residual quantity between setting load and actual loading.In addition, being related to described in this 1st embodiment
Load the maximum load to dual-fuel diesel engine 1 is set to 100%, and be defined to the load factor that changes between 0~100
(loading index value).
Fuel control unit 32 exports fuel control instruction based on the instruction exported from speed regulating control portion 30.
Fuel control unit 32 involved by this 1st embodiment possesses oil fuel control unit 34 and gaseous fuel control unit
36。
Oil fuel control unit 34 calculates oil fuel control based on the instruction exported from speed regulating control portion 30 using prescribed function
Instruction, and output this to oil fuel injection valve 10.
Gaseous fuel control unit 36 calculates gaseous fuel based on the instruction exported from speed regulating control portion 30 using prescribed function
Control instruction, and output this to gas fuel injection valves 8.
Fig. 3 is the chart for representing the relation between load factor and fuel control instruction.
Fuel control instruction shown in Fig. 3 is oil fuel control instruction and gaseous fuel control instruction sum.That is, gas fires
Expect that the aggregate supply heat with oil fuel rises with the rising of load factor.As an example, fuel control instruction and load
Rate is proportional and rises.
When the load of dual-fuel diesel engine 1 is below setting, fuel control unit 32 is only supplied oil fuel；When load is super
When crossing setting, gaseous fuel is initially supplied.Moreover, fuel control unit 32 is fired with different controlled quentity controlled variable control gaseous fuels with oil
Material, and as shown in figure 3, the aggregate supply heat of gaseous fuel and oil fuel is increased with the rising of load.Thus,
ECU12 can reduce the oil fuel usage amount of dual-fuel diesel engine 1.Also, ECU12 controls gaseous fuel with different controlled quentity controlled variables
With oil fuel, therefore, it is possible to cater to the control that its purpose carries out gaseous fuel and oil fuel in obstructed mode.
In addition, above-mentioned setting is referred to as into switching load factor in the following description.In this 1st embodiment, one is used as
Individual example is set to 20% by load factor is switched, but is not limited to this.Switch load factor below, be the load of low-load operation
Rate.
When load exceedes switching load factor, the fuel control unit 32 involved by this 1st embodiment is initially supplied gas
Fuel, and be set to no matter to load the quantity delivered for whether rising gaseous fuel to be constant, and make the quantity delivered of oil fuel with
The rising of load and rise.
Fig. 4 is to represent the relation between the load factor and oil fuel control instruction involved by this 1st embodiment and load
The chart of relation between rate and gaseous fuel control instruction.
As shown in figure 4, when load factor is to switch load factor (20%) below, only exporting oil fuel control instruction, oil combustion
Material control instruction rises with the rising of load factor.The compressing inflammable of oil fuel is better than gaseous fuel, therefore in low-load
When be only supplied oil fuel so that dual-fuel diesel engine 1 also can stably be run in low-load.
Moreover, if load factor exceedes switching load factor, gaseous fuel control instruction is output, and as steady state value,
Start to the gaseous fuelled of dual-fuel diesel engine 1.If in this way, load factor exceed switching load factor, dual-fuel diesel engine 1 from
The running status of the state of special oil firing fuel before this switches to the multifuel combustion state of oil fuel and gaseous fuel.
On the other hand, if load factor exceedes switching load factor, compared with its climbing is less than when switching load factor, oil combustion
Material control instruction diminishes.In other words, as described in Figure 3, oil fuel control instruction is to subtract gaseous fuel control from fuel control instruction
Value obtained by system instruction.Because of the reduction of the oil fuel control instruction, as shown in figure 3, between fuel control instruction and load factor
Relation be maintained.
That is, in this 1st embodiment, if load factor exceedes switching load factor, during the opening and closing of gas fuel injection valves 8
Between fixed, and the opening/closing time of oil fuel injection valve 10 changes, therefore carries out speed regulating control by oil fuel.
As described above, the ECU12 that the dual-fuel diesel engine 1 involved by this 1st embodiment possesses carries out speed governing control
System, when load factor is below switching load factor, is only supplied oil fuel；When load factor exceedes switching load factor, it is initially supplied
Gaseous fuel, and with different controlled quentity controlled variable control gaseous fuels and oil fuel, and make the aggregate supply of gaseous fuel and oil fuel
Heat rises with the rising of load.Thus, the ECU12 involved by this 1st embodiment reduces the usage amount of oil fuel, and
And realize the operation of the stabilization using oil fuel and gaseous fuel.
Moreover, when load factor exceedes switching load factor, the fuel that the ECU12 involved by this 1st embodiment possesses
Control unit 32 is initially supplied gaseous fuel, and it is constant to be set to no matter load the quantity delivered for whether rising gaseous fuel, and
The quantity delivered of oil fuel is set to increase with the rising of load.Thus, the fuel control unit 32 involved by this 1st embodiment is
Make also realize the operation of the diesel engine using gaseous fuel in the case where the surplus of gaseous fuel is less.
[the 2nd embodiment]
Hereinafter, the 2nd embodiment to the present invention is illustrated.
The structure of dual-fuel diesel engine 1 and ECU12 involved by this 2nd embodiment is implemented with the 1st shown in Fig. 1, Fig. 2
The structure of dual-fuel diesel engine 1 and ECU12 involved by mode is identical, therefore the description thereof will be omitted.
In addition, in the same manner as above-mentioned 1st embodiment, when the load factor of dual-fuel diesel engine 1 is below switching load factor
When, the ECU12 involved by this 2nd embodiment is only supplied oil fuel；When load factor exceedes switching load factor, gas is initially supplied
Fluid fuel.
However, when load factor exceedes switching load factor, if being supplied after gaseous fuel is rapidly increased, double fuel
The rotating speed of diesel engine 1 may drastically be accelerated.Now, in order to lower accelerated rotating speed, fuel is lowered by speed regulating control
Quantity delivered, as a result, may occur such as rotating speed excessively declines so-called contact chatter.
Therefore, when the load factor of dual-fuel diesel engine 1 exceedes switching load factor, the combustion involved by this 2nd embodiment
Material control unit 32 makes the quantity delivered of gaseous fuel rise over time, and makes quantity delivered constant.
Fig. 5 is to represent the relation and load factor between the load factor and oil fuel control instruction involved by the 2nd embodiment
The chart of relation between gaseous fuel control instruction.
As shown in figure 5, if load factor reaches switching load factor (20%), gaseous fuel control instruction rises, and opens
Begin to the gaseous fuelled of dual-fuel diesel engine 1.Thus, dual-fuel diesel engine 1 turns into the multifuel combustion shape of oil fuel and gaseous fuel
State.Now, gaseous fuel rises to steady state value with predetermined climbing, so that its quantity delivered is changed over time.
On the other hand, if load factor exceedes switching load factor, oil fuel control instruction turns into from the fuel control shown in Fig. 3
System instruction subtracts the value of gaseous fuel control instruction, therefore compared with load factor is less than when switching load factor, its climbing diminishes.
In this way, the fuel control unit 32 involved by this 2nd embodiment is by making the quantity delivered of gaseous fuel over time
And rise, until quantity delivered reaches constant quantity delivered, drastically accelerate the rotating speed that suppresses dual-fuel diesel engine 1, therefore, it is possible to
Prevent the generation of contact chatter.
[the 3rd embodiment]
Hereinafter, the 3rd embodiment to the present invention is illustrated.
The structure of dual-fuel diesel engine 1 and ECU12 involved by this 3rd embodiment is implemented with the 1st shown in Fig. 1, Fig. 2
The structure of dual-fuel diesel engine 1 and ECU12 involved by mode is identical, therefore the description thereof will be omitted.
When the load factor of dual-fuel diesel engine 1 is below switching load factor, the ECU12 involved by this 3rd embodiment
It is only supplied oil fuel；When load factor exceedes switching load factor, gaseous fuel is initially supplied.
Also, when load factor exceedes switching load factor, the fuel control unit 32 involved by this 3rd embodiment is with gas
The ratio between fuel and oil fuel reach the mode gaseous fuelled and oil fuel of predetermined value (hereinafter referred to as " setting multifuel combustion ratio ").
Setting multifuel combustion ratio can arbitrarily be set, and it can be made to change with load factor.
Sometimes according to the difference of load factor, such as when the ratio between gaseous fuel or oil fuel being set into high, double fuel bavin can be made
Oil machine 1 more stably, or is more efficiently run.Thus, in order to optimal state operation dual-fuel diesel engine
1, setting multifuel combustion ratio can be set as arbitrary value by the fuel control unit 32 involved by this 3rd embodiment.
Fig. 6 is to represent the relation between the load factor and oil fuel control instruction involved by this 3rd embodiment and load
The chart of relation between rate and gaseous fuel control instruction.
If as shown in fig. 6, load factor reach switching load factor (20%), gaseous fuel control instruction rise, start to
The gaseous fuelled of dual-fuel diesel engine 1, and the multifuel combustion state as oil fuel and gaseous fuel.Now, gaseous fuel with
The rising of load factor and rise.
On the other hand, if load factor reaches switching load factor, the climbing of oil fuel control instruction is with gaseous fuel
Quantity delivered reduce, but rise with the rising of load factor.
Gaseous fuel control instruction is controlled so as to the ratio between gaseous fuel and oil fuel with oil fuel control instruction and reaches setting
Multifuel combustion ratio.
That is, in this 3rd embodiment, if load factor exceedes switching load factor, gas fuel injection valves 8 and oil fuel
The opening/closing time of injection valve 10 changes, therefore carries out speed regulating control using gaseous fuel and oil fuel.
In this way, when load factor exceedes switching load factor, the fuel control unit 32 involved by this 3rd embodiment is with gas
The ratio between fuel and oil fuel reach the mode gaseous fuelled and oil fuel of setting multifuel combustion ratio, therefore, it is possible to optimal
Dual-fuel diesel engine 1 is run under state.
[the 4th embodiment]
Hereinafter, the 4th embodiment to the present invention is illustrated.
The structure of dual-fuel diesel engine 1 and ECU12 involved by this 4th embodiment is implemented with the 1st shown in Fig. 1, Fig. 2
The structure of dual-fuel diesel engine 1 and ECU12 involved by mode is identical, therefore the description thereof will be omitted.
When the load factor of dual-fuel diesel engine 1 is below switching load factor, the ECU12 involved by this 4th embodiment
It is only supplied oil fuel；When load factor exceedes switching load factor, gaseous fuel is initially supplied.
Moreover, when load factor exceedes switching load factor, the fuel control unit 32 involved by this 4th embodiment starts to supply
To gaseous fuel, and it is constant to be set to no matter load the quantity delivered for whether rising oil fuel, and makes the supply of gaseous fuel
Amount rises with the rising of load.
Fig. 7 is to represent the relation between the load factor and oil fuel control instruction involved by this 4th embodiment and load
The chart of relation between rate and gaseous fuel control instruction.
As shown in fig. 7, oil fuel control instruction rises with the rising of load factor, until load factor reaches switching load
Rate (20%), if but load factor reaches switching load factor, keep constant.
On the other hand, if load factor reaches switching load factor, gaseous fuel control instruction rises, and starts to double fuel
The gaseous fuelled of diesel engine 1.Thus, dual-fuel diesel engine 1 turns into the multifuel combustion state of oil fuel and gaseous fuel.Moreover, gas
Fluid fuel control instruction rises with the rising of load factor.Thus, as shown in figure 3, between fuel control instruction and load factor
Relation be maintained.
That is, in this 4th embodiment, if load factor exceedes switching load factor, during the opening and closing of oil fuel injection valve 10
Between fixed, the opening/closing time of gas fuel injection valves 8 changes, therefore carries out speed regulating control by gaseous fuel.
In this way, when load factor exceedes switching load factor, the fuel control unit 32 involved by this 4th embodiment starts to supply
To gaseous fuel, and it is constant to be set to no matter load the quantity delivered for whether rising oil fuel, and makes the supply of gaseous fuel
Amount rises with the rising of load, therefore, it is possible to reduce the usage amount of oil fuel, can play to greatest extent by gas
Effect obtained by fuel.
More than, by each above-mentioned embodiment, the present invention is described, but the technical scope of the present invention is not limited
Due to scope described in above-mentioned embodiment.Without departing from the scope of spirit of the present invention, can be to each above-mentioned implementation
Mode carries out various changes and improvement, and is subject to its change and improved mode falls within the technical scope of the present invention.
Symbol description
1- dual-fuel diesel engines, 12-ECU, 30- speed regulating controls portion, 32- fuel control units.
Claims (5)
1. a kind of control device of diesel engine, it is the control dress of the diesel engine run by gaseous fuelled and oil fuel
Put, it possesses：
Speed regulating control means, carry out speed regulating control；And
Fuel control device, the oil fuel is only supplied when the load of diesel engine is below setting；When the load exceedes
The gaseous fuel is initially supplied during the setting, and controls the gaseous fuel and the oil to fire with different controlled quentity controlled variables
Material, and the aggregate supply heat of the gaseous fuel and the oil fuel is increased with the rising of the load, and in institute
When stating load more than the setting, the climbing of the quantity delivered of the oil fuel is set to be supported on than described below the setting
When the climbing it is small or to be constant.
2. the control device of diesel engine according to claim 1, wherein,
When the load exceedes the setting, the fuel control device supplies the gaseous fuel and the oil fuel,
So that the ratio between the gaseous fuel and described oil fuel reach predetermined value.
3. the control device of diesel engine according to claim 1, wherein,
When the load exceedes the setting, the fuel control device is initially supplied the gaseous fuel, and is set to
No matter it is described load whether to rise the quantity delivered of the oil fuel be constant, and make the quantity delivered of the gaseous fuel with institute
State the rising of load and rise.
4. a kind of diesel engine, it possesses：
Gas fuel injection valves, to combustion chamber gas injection fuel；
Oil fuel injection valve, oil fuel is sprayed to the fuel chambers, and
Control device according to any one of claims 1 to 3.
5. a kind of control method of diesel engine, it is the controlling party of the diesel engine run by gaseous fuelled and oil fuel
Method, wherein, the control method of the diesel engine includes：
1st process, the oil fuel is only supplied when the load of diesel engine is below setting；
2nd process, the gaseous fuel is initially supplied when the load exceedes the setting；And
3rd process, controls the gaseous fuel and the oil fuel, and make the gaseous fuel and institute with different controlled quentity controlled variables
The aggregate supply heat for stating oil fuel rises with the rising of the load, and when the load exceedes the setting,
Make the climbing of the quantity delivered of the oil fuel smaller than the climbing being supported on when below the setting or be
It is constant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012250230A JP2014098339A (en) | 2012-11-14 | 2012-11-14 | Control device for diesel engine, diesel engine, and method for controlling diesel engine |
| JP2012-250230 | 2012-11-14 | ||
| PCT/JP2013/069662 WO2014077002A1 (en) | 2012-11-14 | 2013-07-19 | Diesel engine control device, diesel engine, and diesel engine control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104769261A CN104769261A (en) | 2015-07-08 |
| CN104769261B true CN104769261B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380056086.3A Active CN104769261B (en) | 2012-11-14 | 2013-07-19 | The control method of the control device of diesel engine, diesel engine and diesel engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2014098339A (en) |
| KR (1) | KR20150060973A (en) |
| CN (1) | CN104769261B (en) |
| WO (1) | WO2014077002A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101599401B1 (en) * | 2014-07-18 | 2016-03-14 | 대우조선해양 주식회사 | Operation Method of Engine for a Ship |
| EP3015699B1 (en) * | 2014-10-31 | 2018-12-05 | Winterthur Gas & Diesel AG | Gas feeding system with a control system and cylinder for a reciprocating piston engine, reciprocating piston engine, and method for operating a reciprocating piston engine |
| JP7125245B2 (en) * | 2015-05-19 | 2022-08-24 | ヴィンタートゥール ガス アンド ディーゼル アーゲー | Method of operating a large diesel engine, use of this method and large diesel engine |
| EP3267017A1 (en) * | 2016-07-05 | 2018-01-10 | Winterthur Gas & Diesel AG | Method for operating a dual fuel large diesel engine and large diesel engine |
| JP6134041B1 (en) * | 2016-09-14 | 2017-05-24 | 三菱重工業株式会社 | Engine and engine control method |
| JP7376995B2 (en) | 2019-03-04 | 2023-11-09 | 川崎重工業株式会社 | Gas engine with turbocharger and its combustion method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711270A (en) * | 1996-01-15 | 1998-01-27 | Man B&W Diesel A/S | Method of controlling the fuel supply to a diesel engine which by high-pressure injection may be supplied with both fuel oil and fuel gas, and a high-pressure gas injection engine of the diesel type |
| CA2398149A1 (en) * | 2000-02-11 | 2001-08-16 | Patric Ouellette | Method and apparatus for dual fuel injection into an internal combustion engine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08158980A (en) * | 1994-12-06 | 1996-06-18 | Mitsubishi Motors Corp | Auxiliary fuel ignition type gas engine and operating method thereof |
| JP3676964B2 (en) * | 2000-06-27 | 2005-07-27 | 新潟原動機株式会社 | Dual fuel engine |
| JP4232568B2 (en) * | 2002-07-31 | 2009-03-04 | 株式会社豊田中央研究所 | Compression self-ignition internal combustion engine and combustion control method thereof |
| JP2004108153A (en) * | 2002-09-13 | 2004-04-08 | Tokyo Gas Co Ltd | Dual fuel engine |
| JP4747687B2 (en) * | 2005-06-07 | 2011-08-17 | トヨタ自動車株式会社 | Control device for bi-fuel engine |
| JP2008002431A (en) * | 2006-06-26 | 2008-01-10 | Yamaha Motor Co Ltd | Internal combustion engine |
| CN102918237A (en) * | 2010-06-01 | 2013-02-06 | 康明斯知识产权公司 | Control system for dual fuel engines |
| JP5338997B2 (en) * | 2011-02-16 | 2013-11-13 | トヨタ自動車株式会社 | Multi-fuel internal combustion engine and control method thereof |
-
2012
- 2012-11-14 JP JP2012250230A patent/JP2014098339A/en active Pending
-
2013
- 2013-07-19 WO PCT/JP2013/069662 patent/WO2014077002A1/en active Application Filing
- 2013-07-19 KR KR1020157011278A patent/KR20150060973A/en not_active Application Discontinuation
- 2013-07-19 CN CN201380056086.3A patent/CN104769261B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711270A (en) * | 1996-01-15 | 1998-01-27 | Man B&W Diesel A/S | Method of controlling the fuel supply to a diesel engine which by high-pressure injection may be supplied with both fuel oil and fuel gas, and a high-pressure gas injection engine of the diesel type |
| CA2398149A1 (en) * | 2000-02-11 | 2001-08-16 | Patric Ouellette | Method and apparatus for dual fuel injection into an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014098339A (en) | 2014-05-29 |
| CN104769261A (en) | 2015-07-08 |
| KR20150060973A (en) | 2015-06-03 |
| WO2014077002A1 (en) | 2014-05-22 |
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Effective date of registration: 20170811 Address after: Japan's Tokyo port harbor two chome 16 No. 5 Co-patentee after: Japan motor Limited by Share Ltd Patentee after: Mit-subishi Heavy Industries Ltd. Address before: Japan's Tokyo port harbor two chome 16 No. 5 Patentee before: Mit-subishi Heavy Industries Ltd. |