CN103147861B - A kind of diesel engine starting smoke intensity controlling method and diesel engine starting smoke intensity control gear - Google Patents
A kind of diesel engine starting smoke intensity controlling method and diesel engine starting smoke intensity control gear Download PDFInfo
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- CN103147861B CN103147861B CN201310079955.6A CN201310079955A CN103147861B CN 103147861 B CN103147861 B CN 103147861B CN 201310079955 A CN201310079955 A CN 201310079955A CN 103147861 B CN103147861 B CN 103147861B
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Abstract
The invention discloses a kind of diesel engine starting smoke intensity controlling method, after the rotating speed of diesel engine is greater than ignition speed, reading the startup output current I of the electronic speed regulator for controlling Fuel Injection Mechanism of Diesel Engine
0enter the first judgement circulation afterwards, this first judges that circulation is time delay circulation, delay time is 0.05 second, when very first time value t1 be not more than start smoke intensity controling parameters T or real-time rotate speed n be not more than diesel engine rotating speed of target N-50r/min after numerical value in any one condition do not meet time, both for not meet Rule of judgment, the real-time output current I=I of electronic speed regulator
0+ (1.5-I
0) × SIN (t1/T × pi/2), because real-time output current I is that sine function rule exports, so makes oil-supply speed also be undertaken by sine function rule, thus ensure that air fuel ratio is greater than 28, significantly reduce diesel engine starting process smoke intensity.The invention also discloses a kind of diesel engine starting smoke intensity control gear.
Description
Technical field
The present invention relates to diesel engine starting smoke intensity production control technical field, particularly a kind of diesel engine starting smoke intensity controlling method and diesel engine starting smoke intensity control gear.
Background technique
Diesel engine be burning diesel oil to obtain exergonic motor, diesel engine be called for short diesel engine, diesel engine has multiple applicable cases, wherein, be included in when generating electricity constant speed application.
When needs constant speed is applied, first starting motor carries out work, then diesel engine is started, under normal circumstances, after diesel engine starting, operate in low idling operation, be switched to " RUN " shelves from " idling " shelves subsequently, in actual applications, also there is this service condition: directly to " RUN " shelves after diesel engine starting, usually need the time of 1-3 second, above-mentioned two situations all can occur.
At present, diesel engine controls the size of self throttle by speed regulator, speed regulator is connected with the final controlling element 2 on fuel pump, this final controlling element 2 is under the effect of the size of the output current of speed regulator, control the aperture full throttle position from minimum to maximum rapidly of throttle, thus about making diesel engine speed rise to rapidly rated speed from idling or vehicle stop state, namely arrive " RUN " shelves, the rated speed of this diesel engine is generally 1500r/min, certainly also has 1800r/min's.
When diesel engine is switched to " RUN " shelves from " idling "; or from outage state directly to " RUN " shelves; throttle is all increase to standard-sized sheet rapidly; in this process; the compressor blade of pressurized machine and axle assembly do not have synchronous axial system due to effect of inertia, also need one to overcome inertia and resistance and the process progressively accelerated subsequently.At this process initial stage, supercharger speed is very low, causes air inflow very little, and simultaneously, the fuel oil spraying into firing chamber is too much, too much black smoke when result just causes startup.Namely fuel delivery is far longer than the oil mass that diesel engine accelerating needs, and causes great amount of fuel oil can not Thorough combustion, and in diesel engine starting accelerating process, smoke intensity is excessive, to emerge a large amount of black smokes, some diesel engines also there will be in winter the situation that Dark smoke billows, and this both wasted fuel oil, more not environmentally.
Therefore, how providing a kind of diesel engine starting smoke intensity controlling method, to reduce the discharge of smog, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
The object of this invention is to provide a kind of diesel engine starting smoke intensity controlling method, to reduce the discharge of smog; Another object of the present invention is to provide a kind of diesel engine starting smoke intensity control gear.
For solving the problems of the technologies described above, the invention provides following scheme:
A kind of diesel engine starting smoke intensity controlling method, comprise: step 1): setting starts smoke intensity controling parameters T and diesel engine rotating speed of target N, when the real-time rotate speed n of diesel engine be greater than catch fire rotating speed time, read the startup output current I of the electronic speed regulator for controlling Fuel Injection Mechanism of Diesel Engine
0, meanwhile, timer starts timing, and its initial clocking value is very first time value t1, and the initial value of described very first time value t1 is 0; Step 2) enter the first judgement circulation, described first judges the equal time delay of circulation 0.05 second at every turn, described first judges the every circulation primary of circulation, all judge described very first time value t1 whether be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n whether be greater than described diesel engine rotating speed of target N-50r/min after numerical value, when described very first time value t1 be not more than described startup smoke intensity controling parameters T or described real-time rotate speed n be not more than described diesel engine rotating speed of target N-50r/min after numerical value time, the real-time output current I=I of described electronic speed regulator
0+ (1.5-I
0) × SIN (t1/T × pi/2), is undertaken by sine function rule the oil-supply speed of described diesel engine; When described very first time value t1 be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n be greater than described diesel engine rotating speed of target N-50r/min after numerical value time, the real-time output current I of described electronic speed regulator is constant current value.
Preferably, above-mentioned steps 1) also comprise when described real-time rotate speed n be greater than normal start rotating speed and catch fire described in being not more than rotating speed time, described timer starts timing, its initial clocking value is the second time value t2, the initial value of described second time value t2 is 0, when described second time value t2 is 1 second, described real-time output current I is 0.5A, enter the second judgement circulation afterwards, described second judges the equal time delay of circulation 0.05 second at every turn, described second judges circulation time at every turn, described real-time output current I all increases 0.02A, when catch fire described in described real-time rotate speed n is greater than rotating speed time, described startup output current I
0for described real-time output current I.
Preferably, above-mentioned steps 1) also comprise when described real-time rotate speed n is not more than described normal startup rotating speed, described real-time output current I is 0A.
Preferably, above-mentioned normal startup rotating speed is 80r/min.
Preferably, the above-mentioned rotating speed that catches fire is 500r/min.
Preferably, above-mentioned constant current value is 1.5A.
The present invention also provides a kind of diesel engine starting smoke intensity control gear, comprise for arranging and read the first parameter devices starting smoke intensity controling parameters T, for arranging and read second parameter devices of diesel engine rotating speed of target N, for judging after described real-time rotate speed n is greater than the rotating speed that catches fire of diesel engine, whether be greater than working time of described diesel engine the first judgment means whether described startup smoke intensity controling parameters T and/or real-time rotate speed n is greater than the numerical value after the rotating speed of target N-50r/min of diesel engine, for calculating the real-time rotate speed n of described diesel engine and the electronic speed regulator of described Fuel Injection Mechanism of Diesel Engine and the timer for timing can being controlled according to the judged result of described first judgment means.
The numerical value that preferably above-mentioned diesel engine starting smoke intensity control gear also comprises the described real-time rotate speed n drawn according to described electronic speed regulator judge described real-time rotate speed n whether be greater than described in catch fire the second judgment means of rotating speed and the numerical value of described real-time rotate speed n that draws according to described electronic speed regulator judge whether described real-time rotate speed n is greater than normal the 3rd judgment means starting rotating speed.
Preferably, above-mentioned first parameter devices is stepless regulator.
Preferably, above-mentioned first parameter devices is 0 second-20 seconds time period controlling device.
Diesel engine starting smoke intensity controlling method provided by the invention, comprise: step 1): setting starts smoke intensity controling parameters T and diesel engine rotating speed of target N, when the real-time rotate speed n of diesel engine be greater than catch fire rotating speed time, read the startup output current I of the electronic speed regulator for controlling Fuel Injection Mechanism of Diesel Engine
0, meanwhile, timer starts timing, and its initial clocking value is very first time value t1, and the initial value of described very first time value t1 is 0; Step 2) enter the first judgement circulation, described first judges the equal time delay of circulation 0.05 second at every turn, described first judges the every circulation primary of circulation, all judge described very first time value t1 whether be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n whether be greater than described diesel engine rotating speed of target N-50r/min after numerical value, when described very first time value t1 be not more than described startup smoke intensity controling parameters T or described real-time rotate speed n be not more than described diesel engine rotating speed of target N-50r/min after numerical value time, the real-time output current I=I of described electronic speed regulator
0+ (1.5-I
0) × SIN (t1/T × pi/2), is undertaken by sine function rule the oil-supply speed of described diesel engine; When described very first time value t1 be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n be greater than described diesel engine rotating speed of target N-50r/min after numerical value time, the real-time output current I of described electronic speed regulator is constant current value.
Just caught fire at diesel engine initial stage of entry into service, supercharger air compressor rotary component is due to effect of inertia, and its rotating speed increases slow, synchronously in time can not supply enough air to firing chamber, will cause like this, because of lack of air during burning, air fuel ratio is little and make startup smoke intensity excessive.Therefore, oil-supply speed in the early stage must be mild, to reach reasonable air fuel ratio, reduces and start smoke intensity.
Summed up by lot of experiments, fuel supply rate curve changes, and makes to spray into the fuel oil of firing chamber and enters the air of firing chamber, and reach a suitable ratio, the basic demand of this ratio is " air fuel ratio is greater than 28 ", just can effectively reduce startup smoke intensity.According to the air feed rule of start-up course pressurized machine, diesel engine is from taking fire, then the process of rated speed is accelerated to, diesel engine starting smoke intensity controlling method provided by the invention makes oil-supply speed be undertaken by sine function rule, can ensure " air fuel ratio is greater than 28 ", by such control, diesel engine starting process smoke intensity significantly can be reduced.
In concrete operating process, first should set and start smoke intensity controling parameters T and diesel engine rotating speed of target N, wherein start the startup time used that smoke intensity controling parameters T is diesel engine, diesel engine rotating speed of target N is the rotating speed after diesel engine starting completes, after the rotating speed of diesel engine is greater than ignition speed, after namely diesel engine has caught fire, read the startup output current I of the electronic speed regulator for controlling Fuel Injection Mechanism of Diesel Engine
0, this startup output current I
0size control the number of Fuel Injection Mechanism of Diesel Engine, enter the first judgement circulation afterwards, this first judges that circulation is time delay circulation, delay time is 0.05 second, this first judge circulate Rule of judgment be described very first time value t1 whether be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n whether be greater than described diesel engine rotating speed of target N-50r/min after numerical value, when described very first time value t1 be not more than described startup smoke intensity controling parameters T or real-time rotate speed n be not more than described diesel engine rotating speed of target N-50r/min after numerical value in any one condition do not meet time, both for not meet Rule of judgment, the real-time output current I=I of electronic speed regulator
0+ (1.5-I
0) × SIN (t1/T × pi/2), because real-time output current I is that sine function rule exports, oil-supply speed is so made also to be undertaken by sine function rule, thus ensure that air fuel ratio is greater than 28, remarkable reduction diesel engine starting process smoke intensity, first judges that circulation continues always, until meet very first time value t1 be greater than described startup smoke intensity controling parameters T or real-time rotate speed n be greater than described diesel engine rotating speed of target N-50r/min after numerical value in any one condition, can think that diesel engine starting completes, so the real-time output current I of electronic speed regulator becomes constant current value, enter constant speed running.
Wherein, the numerical value after diesel engine rotating speed of target N-50r/min refer to diesel engine rotating speed of target N deduct 50r/min after numerical value, as long as the numerical value after real-time rotate speed n is greater than diesel engine rotating speed of target N-50r/min can think that diesel engine starting completes herein.
Wherein, π is the numerical value of Ratio of the circumference of a circle to its diameter, and generally when practical application, value is 3.14159.
Accompanying drawing explanation
The flowage structure schematic diagram of the diesel engine starting smoke intensity controlling method that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the diesel engine starting smoke intensity control gear that Fig. 2 provides for the embodiment of the present invention.
In Fig. 1 and Fig. 2:
Electronic speed regulator 1, final controlling element 2.
Embodiment
Core of the present invention is to provide a kind of diesel engine starting smoke intensity controlling method, to reduce the discharge of smog; Another core of the present invention is to provide a kind of diesel engine starting smoke intensity control gear.
In order to make those skilled in the art understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1 and Fig. 2, the flowage structure schematic diagram of the diesel engine starting smoke intensity controlling method that Fig. 1 provides for the embodiment of the present invention, please refer to Fig. 2, the structural representation of the diesel engine starting smoke intensity control gear that Fig. 2 provides for the embodiment of the present invention.
The diesel engine starting smoke intensity controlling method that the embodiment of the present invention provides, comprise: step 1): setting starts smoke intensity controling parameters T and diesel engine rotating speed of target N, when the real-time rotate speed n of diesel engine be greater than catch fire rotating speed time, read the startup output current I of the electronic speed regulator 1 for controlling Fuel Injection Mechanism of Diesel Engine
0, meanwhile, timer starts timing, and its initial clocking value is very first time value t1, and the initial value of very first time value t1 is 0; Step 2) enter the first judgement circulation, each first judges the equal time delay of circulation 0.05 second, first judges the every circulation primary of circulation, all judge whether very first time value t1 is greater than to start smoke intensity controling parameters T or real-time rotate speed n and whether be greater than the numerical value after diesel engine rotating speed of target N-50r/min, when very first time value t1 be not more than start smoke intensity controling parameters T or real-time rotate speed n be not more than the numerical value after diesel engine rotating speed of target N-50r/min time, the real-time output current I=I of electronic speed regulator 1
0+ (1.5-I
0) × SIN (t1/T × pi/2), is undertaken by sine function rule the oil-supply speed of diesel engine; When very first time value t1 be greater than start smoke intensity controling parameters T or real-time rotate speed n be greater than the numerical value after diesel engine rotating speed of target N-50r/min time, the real-time output current I of electronic speed regulator 1 is constant current value.
Before each startup, all need to carry out Initialize installation to electronic speed regulator 1.
Just caught fire at diesel engine initial stage of entry into service, supercharger air compressor rotary component is due to effect of inertia, and its rotating speed increases slow, synchronously in time can not supply enough air to firing chamber, will cause like this, because of lack of air during burning, air fuel ratio is little and make startup smoke intensity excessive.Therefore, oil-supply speed in the early stage must be mild, to reach reasonable air fuel ratio, reduces and start smoke intensity.
Summed up by lot of experiments, fuel supply rate curve changes, and makes to spray into the fuel oil of firing chamber and enters the air of firing chamber, and reach a suitable ratio, the basic demand of this ratio is " air fuel ratio is greater than 28 ", just can effectively reduce startup smoke intensity.According to the air feed rule of start-up course pressurized machine, diesel engine is from taking fire, then the process of rated speed is accelerated to, diesel engine starting smoke intensity controlling method provided by the invention makes oil-supply speed be undertaken by sine function rule, can ensure " air fuel ratio is greater than 28 ", by such control, diesel engine starting process smoke intensity significantly can be reduced.
In concrete operating process, first should set and start smoke intensity controling parameters T and diesel engine rotating speed of target N, wherein start the startup time used that smoke intensity controling parameters T is diesel engine, diesel engine rotating speed of target N is the rotating speed after diesel engine starting completes, after the rotating speed of diesel engine is greater than ignition speed, after namely diesel engine has caught fire, read the startup output current I of the electronic speed regulator 1 for controlling Fuel Injection Mechanism of Diesel Engine
0, this startup output current I
0size control the number of Fuel Injection Mechanism of Diesel Engine, enter the first judgement circulation afterwards, this first judges that circulation is time delay circulation, delay time is 0.05 second, this first judges the Rule of judgment circulated is whether very first time value t1 is greater than startup smoke intensity controling parameters T or real-time rotate speed n and whether is greater than the numerical value after diesel engine rotating speed of target N-50r/min, when very first time value t1 be not more than start smoke intensity controling parameters T or real-time rotate speed n be not more than diesel engine rotating speed of target N-50r/min after numerical value in any one condition do not meet time, both for not meet Rule of judgment, the real-time output current I=I of electronic speed regulator 1
0+ (1.5-I
0) × SIN (t1/T × pi/2), because real-time output current I is that sine function rule exports, oil-supply speed is so made also to be undertaken by sine function rule, thus ensure that air fuel ratio is greater than 28, remarkable reduction diesel engine starting process smoke intensity, first judges that circulation continues always, be greater than and start smoke intensity controling parameters T or real-time rotate speed n until meet very first time value t1 and be greater than any one condition in the numerical value after diesel engine rotating speed of target N-50r/min, can think that diesel engine starting completes, so the real-time output current I of electronic speed regulator 1 becomes constant current value, this constant current value is 1.5A, enter constant speed running.
Wherein, the numerical value after diesel engine rotating speed of target N-50r/min refer to diesel engine rotating speed of target N deduct 50r/min after numerical value, as long as the numerical value after real-time rotate speed n is greater than diesel engine rotating speed of target N-50r/min can think that diesel engine starting completes herein.
Wherein, π is the numerical value of Ratio of the circumference of a circle to its diameter, and generally when practical application, value is 3.14159.
Concrete, above-mentioned steps 1) also comprise when real-time rotate speed n be greater than normal start rotating speed and be not more than catch fire rotating speed time, timer starts timing, its initial clocking value is the second time value t2, the initial value of the second time value t2 is 0, when the second time value t2 is 1 second, real-time output current I is 0.5A, enter the second judgement circulation afterwards, each second judges the equal time delay of circulation 0.05 second, and each second judges circulation time, and real-time output current I all increases 0.02A, when real-time rotate speed n be greater than catch fire rotating speed time, starting output current I0 is real-time output current I.
Diesel engine be greater than ignition speed realize catch fire after, oil-supply speed is undertaken by sine function rule, thus ensure that in the process of startup, the air fuel ratio of diesel engine is greater than 28, in fact also be so have certain smoke intensity before diesel engine catches fire, diesel engine mainly drives by a motor by this process normally, and make diesel engine reach one normally to start rotating speed, and then fuel feeding makes diesel engine enter the state of catching fire, in this process in order to prevent over feeding from causing emerging in diesel engine ignition process a large amount of dense smoke, cause environmental pollution and fuel oil waste, need to spray into fuel oil in the firing chamber of diesel engine little as far as possible and diesel engine can be made to catch fire, thus reduce diesel engine starting smoke intensity further.
When practical operation, when real-time rotate speed n be greater than normal start rotating speed and be not more than catch fire rotating speed time, timer starts timing and in time delay after 1 second, electronic speed regulator 1 starts output current, start Fuel Injection Mechanism of Diesel Engine, this real-time output current I is 0.5A, then the second judgement circulation is entered, each time delay 0.05 second, and each second judges circulation time, real-time output current I all increases 0.02A, electronic speed regulator 1 progressively increases real-time output current I, thus progressively open throttle, little as far as possible and diesel engine can be made to catch fire with the fuel oil making to spray into firing chamber, second judges that circulation continues always, until real-time rotate speed n is greater than the rotating speed that catches fire, namely reach the state of catching fire, whole process can better reduce diesel engine starting smoke intensity.It is the basis that fuel feeding program starts that diesel engine catches fire, and judges that diesel engine catches fire when being greater than the rotating speed that catches fire by diesel engine speed, then start to enter next step fuel feeding program, and fuel oil is started supply by sine function rule.
Concrete, above-mentioned steps 1) also comprise when real-time rotate speed n is not more than normal startup rotating speed, real-time output current I is 0A.When motor starting drives diesel engine to rotate at the beginning, if diesel engine speed is too low and cannot meet basic ignition condition, then not to firing chamber fuel feeding, namely the real-time output current I of electronic speed regulator 1 is 0A, until diesel engine speed reaches requirement, namely real-time rotate speed n is greater than and normally starts rotating speed.Fuel oil owing to spraying into firing chamber before when can effectively avoid diesel engine to catch fire like this too much causes diesel engine starting smoke intensity excessive.
And when cold snap cold boot of diesel, starting time is long, even occurs situation about repeatedly starting, the fuel oil spraying into firing chamber before causing diesel engine finally to catch fire too much causes excessive startup black smoke.So too low and basic ignition condition cannot be met at diesel engine speed, the generation of this situation can not be avoided to firing chamber fuel feeding.Can avoid artificially rotating diesel engine simultaneously, such as, when checking and adjust diesel engine, cause electronic speed regulator 1 to judge by accident and fuel feeding.
Concrete, above-mentioned normal startup rotating speed is 80r/min, meets the actual service condition of diesel engine.
Concrete, the above-mentioned rotating speed that catches fire is 500r/min, meets the actual service condition of diesel engine.
The Contrast on effect when effect of the diesel engine starting smoke intensity controlling method that the embodiment of the present invention provides after reality uses and existing diesel engine starting is in table 1, and the diesel engine starting smoke intensity controlling method that table 1 provides for the embodiment of the present invention and former speed regulator using effect contrast.
Can see from table 1, when the diesel engine starting smoke intensity controlling method that the embodiment of the present invention provides uses, maximum smoke opacity is only 1.83, and diesel engine of the prior art is when starting, its maximum smoke opacity is 7.53, and the effect when diesel engine starting smoke intensity controlling method that the embodiment of the present invention provides uses is very good.
The diesel engine starting smoke intensity controlling method that table 1 embodiment of the present invention provides and former speed regulator using effect contrast
The embodiment of the present invention also provides a kind of diesel engine starting smoke intensity control gear, comprise for arranging and read the first parameter devices starting smoke intensity controling parameters T, for arranging and read second parameter devices of diesel engine rotating speed of target N, for judging after real-time rotate speed n is greater than the rotating speed that catches fire of diesel engine, whether be greater than working time of diesel engine the first judgment means starting smoke intensity controling parameters T and/or real-time rotate speed n and whether be greater than the numerical value after the rotating speed of target N-50r/min of diesel engine, for calculating the real-time rotate speed n of diesel engine and the electronic speed regulator 1 of Fuel Injection Mechanism of Diesel Engine and the timer for timing can being controlled according to the judged result of the first judgment means.
Arrange in the first parameter devices when setting and starting smoke intensity controling parameters T, arrange in the second parameter devices when arranging diesel engine rotating speed of target N, jointly completed the control of the fuel feeding to diesel engine by electronic speed regulator 1, first judgment means and timer, its concrete control procedure is as follows:
Step 1): setting start smoke intensity controling parameters T and diesel engine rotating speed of target N, when the real-time rotate speed n of diesel engine be greater than catch fire rotating speed time, read the startup output current I of the electronic speed regulator 1 for controlling Fuel Injection Mechanism of Diesel Engine
0, meanwhile, timer starts timing, and its initial clocking value is very first time value t1, and the initial value of very first time value t1 is 0;
Step 2) enter the first judgement circulation, each first judges the equal time delay of circulation 0.05 second, first judges the every circulation primary of circulation, all judge whether very first time value t1 is greater than to start smoke intensity controling parameters T or real-time rotate speed n and whether be greater than the numerical value after diesel engine rotating speed of target N-50r/min, wherein, the working time of diesel engine is very first time value t1, when very first time value t1 be not more than start smoke intensity controling parameters T or real-time rotate speed n be not more than the numerical value after diesel engine rotating speed of target N-50r/min time, the real-time output current I=I of electronic speed regulator 1
0+ (1.5-I
0) × SIN (t1/T × pi/2), is undertaken by sine function rule the oil-supply speed of diesel engine; When very first time value t1 be greater than start smoke intensity controling parameters T or real-time rotate speed n be greater than the numerical value after diesel engine rotating speed of target N-50r/min time, the real-time output current I of electronic speed regulator 1 is constant current value.
Just caught fire at diesel engine initial stage of entry into service, supercharger air compressor rotary component is due to effect of inertia, and its rotating speed increases slow, synchronously in time can not supply enough air to firing chamber, will cause like this, because of lack of air during burning, air fuel ratio is little and make startup smoke intensity excessive.Therefore, oil-supply speed in the early stage must be mild, to reach reasonable air fuel ratio, reduces and start smoke intensity.
Summed up by lot of experiments, fuel supply rate curve changes, and makes to spray into the fuel oil of firing chamber and enters the air of firing chamber, and reach a suitable ratio, the basic demand of this ratio is " air fuel ratio is greater than 28 ", just can effectively reduce startup smoke intensity.According to the air feed rule of start-up course pressurized machine, diesel engine is from taking fire, then the process of rated speed is accelerated to, diesel engine starting smoke intensity controlling method provided by the invention makes oil-supply speed be undertaken by sine function rule, can ensure " air fuel ratio is greater than 28 ", by such control, diesel engine starting process smoke intensity significantly can be reduced.
In concrete operating process, first should set and start smoke intensity controling parameters T and diesel engine rotating speed of target N, wherein start the startup time used that smoke intensity controling parameters T is diesel engine, diesel engine rotating speed of target N is the rotating speed after diesel engine starting completes, after the rotating speed of diesel engine is greater than ignition speed, after namely diesel engine has caught fire, read the startup output current I of the electronic speed regulator 1 for controlling Fuel Injection Mechanism of Diesel Engine
0, this startup output current I
0size control the number of Fuel Injection Mechanism of Diesel Engine, enter the first judgement circulation afterwards, this first judges that circulation is time delay circulation, delay time is 0.05 second, this first judges the Rule of judgment circulated is whether very first time value t1 is greater than startup smoke intensity controling parameters T or real-time rotate speed n and whether is greater than the numerical value after diesel engine rotating speed of target N-50r/min, when very first time value t1 be not more than start smoke intensity controling parameters T or real-time rotate speed n be not more than diesel engine rotating speed of target N-50r/min after numerical value in any one condition do not meet time, both for not meet Rule of judgment, the real-time output current I=I of electronic speed regulator 1
0+ (1.5-I
0) × SIN (t1/T × pi/2), because real-time output current I is that sine function rule exports, oil-supply speed is so made also to be undertaken by sine function rule, thus ensure that air fuel ratio is greater than 28, remarkable reduction diesel engine starting process smoke intensity, first judges that circulation continues always, be greater than and start smoke intensity controling parameters T or real-time rotate speed n until meet very first time value t1 and be greater than any one condition in the numerical value after diesel engine rotating speed of target N-50r/min, can think that diesel engine starting completes, so the real-time output current I of electronic speed regulator 1 becomes constant current value, this constant current value is 1.5A, enter constant speed running.
Wherein, the numerical value after diesel engine rotating speed of target N-50r/min refer to diesel engine rotating speed of target N deduct 50r/min after numerical value, as long as the numerical value after real-time rotate speed n is greater than diesel engine rotating speed of target N-50r/min can think that diesel engine starting completes herein.
Wherein, π is the numerical value of Ratio of the circumference of a circle to its diameter, and generally when practical application, value is 3.14159.
Wherein, the output current of electronic speed regulator 1 is controlled by self, and self can realize reading, electronic speed regulator 1 controls the size of the throttle of diesel engine by the output current controlling self.
Concrete, the numerical value that above-mentioned diesel engine starting smoke intensity control gear also comprises the real-time rotate speed n drawn according to electronic speed regulator 1 judges that the second judgment means whether real-time rotate speed n is greater than the rotating speed that catches fire and the numerical value of real-time rotate speed n drawn according to electronic speed regulator 1 judge whether real-time rotate speed n is greater than the 3rd judgment means of normally startup rotating speed.
The second judgment means whether real-time rotate speed n is greater than the rotating speed that catches fire and the numerical value of real-time rotate speed n drawn according to electronic speed regulator 1 judge whether real-time rotate speed n is greater than normal the 3rd judgment means starting rotating speed why to need the numerical value of the real-time rotate speed n drawn according to electronic speed regulator 1 to judge, be because diesel engine be greater than ignition speed realize catch fire after, oil-supply speed is undertaken by sine function rule, thus ensure that in the process of startup, the air fuel ratio of diesel engine is greater than 28, and be in fact also have certain smoke intensity before diesel engine catches fire, diesel engine mainly drives by a motor by this process normally, and make diesel engine be greater than one normally to start rotating speed, and then fuel feeding makes diesel engine enter the state of catching fire, in this process in order to prevent over feeding from causing emerging in diesel engine ignition process a large amount of dense smoke, cause environmental pollution and fuel oil waste, need to spray into fuel oil in the firing chamber of diesel engine little as far as possible and diesel engine can be made to catch fire, thus reduce diesel engine starting smoke intensity further.
Its working procedure is as follows:
1) when real-time rotate speed n be greater than normal start rotating speed and be not more than catch fire rotating speed time, timer starts timing, its initial clocking value is the second time value t2, the initial value of the second time value t2 is 0, when the second time value t2 is 1 second, real-time output current I is 0.5A, enter the second judgement circulation afterwards, each second judges the equal time delay of circulation 0.05 second, each second judges circulation time, real-time output current I all increases 0.02A, when real-time rotate speed n be greater than catch fire rotating speed time, starting output current I0 is real-time output current I.
2) when real-time rotate speed n is not more than normal startup rotating speed, real-time output current I is 0A.
So when practical operation, when real-time rotate speed n be greater than normal start rotating speed and be not more than catch fire rotating speed time, timer starts timing and in time delay after 1 second, electronic speed regulator 1 starts output current, start Fuel Injection Mechanism of Diesel Engine, this real-time output current I is 0.5A, then the second judgement circulation is entered, each time delay 0.05 second, and each second judges circulation time, real-time output current I all increases 0.02A, electronic speed regulator 1 progressively increases real-time output current I, thus progressively open throttle, little as far as possible and diesel engine can be made to catch fire with the fuel oil making to spray into firing chamber, second judges that circulation continues always, until real-time rotate speed n is greater than the rotating speed that catches fire, namely be greater than the state of catching fire, whole process can better reduce diesel engine starting smoke intensity.It is the basis that fuel feeding program starts that diesel engine catches fire, and judges that diesel engine catches fire when being greater than the rotating speed that catches fire by diesel engine speed, then start to enter next step fuel feeding program, and fuel oil is started supply by sine function rule.
Simultaneously, when motor starting drives diesel engine to rotate at the beginning, if diesel engine speed is too low and cannot meet basic ignition condition, then not to firing chamber fuel feeding, namely the real-time output current I of electronic speed regulator 1 is 0A, until diesel engine speed is greater than requirement, namely real-time rotate speed n is greater than and normally starts rotating speed.Fuel oil owing to spraying into firing chamber before when can effectively avoid diesel engine to catch fire like this too much causes diesel engine starting smoke intensity excessive.
And when cold snap cold boot of diesel, starting time is long, even occurs situation about repeatedly starting, the fuel oil spraying into firing chamber before causing diesel engine finally to catch fire too much causes excessive startup black smoke.So too low and basic ignition condition cannot be met at diesel engine speed, the generation of this situation can not be avoided to firing chamber fuel feeding.Can avoid artificially rotating diesel engine simultaneously, such as, when checking and adjust diesel engine, cause electronic speed regulator 1 to judge by accident and fuel feeding.
Concrete, the first parameter devices is stepless regulator.Generally in prior art adopt dialing type to regulate to start smoke intensity controling parameters T, the namely starting time of diesel engine, and any one time adopting stepless regulator starting time can be controlled in section at any time, very convenient.
Concrete, the first parameter devices is 0 second-20 seconds time period controlling device.30s can be arrived at most in currently available technology, but more than 20s controls few of practical significance starting time.
The diesel engine starting smoke intensity controlling method provided the embodiment of the present invention above and diesel engine starting smoke intensity control gear are described in detail.
Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a diesel engine starting smoke intensity controlling method, is characterized in that, comprising:
Step 1): setting starts smoke intensity controling parameters T and diesel engine rotating speed of target N, when the real-time rotate speed n of diesel engine be greater than catch fire rotating speed time, read the startup output current I0 of the electronic speed regulator for controlling Fuel Injection Mechanism of Diesel Engine, simultaneously, timer starts timing, its initial clocking value is very first time value t1, and the initial value of described very first time value t1 is 0;
Step 2) enter the first judgement circulation, described first judges the equal time delay of circulation 0.05 second at every turn, described first judges the every circulation primary of circulation, all judge described very first time value t1 whether be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n whether be greater than described diesel engine rotating speed of target N-50r/min after numerical value
When described very first time value t1 be not more than described startup smoke intensity controling parameters T or described real-time rotate speed n be not more than described diesel engine rotating speed of target N-50r/min after numerical value time, real-time output current I=I0+ (the 1.5-I0) × SIN (t1/T × pi/2) of described electronic speed regulator, is undertaken by sine function rule the oil-supply speed of described diesel engine;
When described very first time value t1 be greater than described startup smoke intensity controling parameters T or described real-time rotate speed n be greater than described diesel engine rotating speed of target N-50r/min after numerical value time, the real-time output current I of described electronic speed regulator is constant current value.
2. diesel engine starting smoke intensity controlling method according to claim 1, it is characterized in that, described step 1) also comprise when described real-time rotate speed n be greater than normal start rotating speed and catch fire described in being not more than rotating speed time, described timer starts timing, its initial clocking value is the second time value t2, and the initial value of described second time value t2 is 0, when described second time value t2 is 1 second, described real-time output current I is 0.5A
Enter the second judgement circulation afterwards, described second judges the equal time delay of circulation 0.05 second at every turn, and described second judges circulation time at every turn, and described real-time output current I all increases 0.02A,
When catch fire described in described real-time rotate speed n is greater than rotating speed time, described startup output current I0 is described real-time output current I.
3. diesel engine starting smoke intensity controlling method according to claim 2, is characterized in that, described step 1) also comprise when described real-time rotate speed n is not more than described normal startup rotating speed, described real-time output current I is 0A.
4. diesel engine starting smoke intensity controlling method according to claim 2, is characterized in that, described normal startup rotating speed is 80r/min.
5. diesel engine starting smoke intensity controlling method according to claim 1, is characterized in that, described in the rotating speed that catches fire be 500r/min.
6. diesel engine starting smoke intensity controlling method according to claim 1, is characterized in that, described constant current value is 1.5A.
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| CN113364034B (en) * | 2021-06-11 | 2022-08-19 | 重庆普什新能源技术有限公司 | Automatic control method and device for gas generator set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795233A (en) * | 1972-05-19 | 1974-03-05 | Caterpillar Tractor Co | Fuel-air ratio control for supercharged engines |
| CN1196445A (en) * | 1998-03-17 | 1998-10-21 | 大连机车车辆厂 | Starting method and control device for diesel engine |
| CN201116495Y (en) * | 2007-08-20 | 2008-09-17 | 北京东风机车电器厂 | Electronic speed regulator |
| CN202280521U (en) * | 2011-11-09 | 2012-06-20 | 重庆宗申发动机制造有限公司 | Throttle oil quantity controller of single-cylinder diesel engine |
| CN203035354U (en) * | 2013-03-13 | 2013-07-03 | 重庆康明斯发动机有限公司 | Diesel engine and diesel engine start smoke intensity control device thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001271658A (en) * | 2000-03-29 | 2001-10-05 | Toho Seisakusho:Kk | Electronic governor for diesel engine |
-
2013
- 2013-03-13 CN CN201310079955.6A patent/CN103147861B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795233A (en) * | 1972-05-19 | 1974-03-05 | Caterpillar Tractor Co | Fuel-air ratio control for supercharged engines |
| CN1196445A (en) * | 1998-03-17 | 1998-10-21 | 大连机车车辆厂 | Starting method and control device for diesel engine |
| CN201116495Y (en) * | 2007-08-20 | 2008-09-17 | 北京东风机车电器厂 | Electronic speed regulator |
| CN202280521U (en) * | 2011-11-09 | 2012-06-20 | 重庆宗申发动机制造有限公司 | Throttle oil quantity controller of single-cylinder diesel engine |
| CN203035354U (en) * | 2013-03-13 | 2013-07-03 | 重庆康明斯发动机有限公司 | Diesel engine and diesel engine start smoke intensity control device thereof |
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