CN1934343B - Fuel injection amount control method for engine and engine operating state discrimination method using the said method - Google Patents
Fuel injection amount control method for engine and engine operating state discrimination method using the said method Download PDFInfo
- Publication number
- CN1934343B CN1934343B CN2005800096075A CN200580009607A CN1934343B CN 1934343 B CN1934343 B CN 1934343B CN 2005800096075 A CN2005800096075 A CN 2005800096075A CN 200580009607 A CN200580009607 A CN 200580009607A CN 1934343 B CN1934343 B CN 1934343B
- Authority
- CN
- China
- Prior art keywords
- fuel
- motor
- fuel injection
- cylinder
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 332
- 238000002347 injection Methods 0.000 title claims abstract description 246
- 239000007924 injection Substances 0.000 title claims abstract description 246
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000012850 discrimination method Methods 0.000 title 1
- 230000001133 acceleration Effects 0.000 claims description 78
- 230000008859 change Effects 0.000 claims description 31
- 230000002787 reinforcement Effects 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000033228 biological regulation Effects 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 13
- 239000007921 spray Substances 0.000 description 38
- 239000000779 smoke Substances 0.000 description 19
- 230000001360 synchronised effect Effects 0.000 description 15
- 238000005507 spraying Methods 0.000 description 13
- 239000003921 oil Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 9
- 230000007704 transition Effects 0.000 description 9
- 230000035508 accumulation Effects 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 8
- 239000003500 flue dust Substances 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000010304 firing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
A fuel control method for the multi-cylinder engine having a rotation recognizing means recognizing the rotating amount of a crankshaft by cylinders before the combustion cycle of a cylinder concerned. When the injection and supply of a fuel from an injector into the cylinder of the six cylinders are disabled, the number of the cylinders to be recognized by the rotation recognizing means is changed so that the rotating amount of the crankshaft for each of all the six cylinders in which the combustion cycles are continued to each other before the combustion cycle of the cylinder can be recognized. The supply of the fuel of the injector which supplies the fuel to the cylinders having a combustion cycle interval matching that of the cylinder to which the fuel cannot be supplied is controllably stopped so that the combustion cycle intervals between the cylinders on both front and rear sides of the fuel-unsupplied cylinder in the combustion cycle can be uniformed.
Description
Technical field
The present invention is with regard to conceptive, the control of relevant motor, relate at the fuel controlling method of the independent control of a plurality of cylinders from the multicylinder engine of the delivery volume of the fuel of Fuelinjection nozzle, control is from the fuel injection amount controlling method of the motor of the emitted dose of the fuel of the fuel injection valves inject motor of pressurized machine (particularly with) and the engine operating status method of discrimination that uses it, with respect to a plurality of motors, cardan shaft is by the advancing means of a plurality of motors that connect separately respectively, have the fuel injection control device when crash back (Network ラ Star シ ユ ア ス タ one Application) that deceleration peculiar to vessel that boats and ships when making ahead running bring to rapidly reverses the motor of machine.
Background technique
Generally, in the multicylinder engine of diesel engine etc., from seeking further to improve the viewpoint of runnability, be provided with operating condition according to motor, electrically carrying out the injection of fuel controls (promptly, fuel injection amount control and injection timing are controlled) electronic fuel-injection system device (for example, with reference to patent documentation 1).
In such electronic fuel-injection system device,, control delivery volume separately from the fuel of Fuelinjection nozzle at each cylinder of motor.
In addition, in this electronic fuel-injection system device, in the past, boost compensator is by known (for example, with reference to patent documentation 2), and this boost compensator is according to the air quantity that sucks motor, restriction reduces the black smoke of discharging from motor from the fuel injection amount of Fuelinjection nozzle.
Above-mentioned electronic fuel-injection system device for example also is used in the motor that is equipped on boats and ships etc.In addition, in the past, in a plurality of motors that are equipped on boats and ships etc., be well known that, the cardan shaft that has propeller cavitation at axle head is connected with this each motor separately respectively, adjust by single governor lever, make the rotating amount synchronous (for example, with reference to patent documentation 3) of the cardan shaft of each motor.
In addition, in boats and ships, generally be when underway boats and ships are brought to rapidly, carry out clutch is transformed into the operation that is known as crash back that retreats from advancing.When implementing such crash back, if it is excessive to be applied to the load of motor, the possibility that then exists motor to stop.This is that the actual revolution of motor reduces because clutch is being transformed into from advancing when retreating.Therefore, preventing on the basis that motor stops, when carrying out crash back, with the size of the actual revolution of each motor, set the engine revolution that motor stops boundary, when being lower than this engine revolution, make clutch be in neutrality (neutral gear), alleviate the burden that imposes on motor, in view of the above, wait for the recovery of the actual revolution of motor, after returning to a certain degree, carry out clutch is transformed into and retreat.
But, in such method, because after the actual revolution of motor rises to a certain degree, clutch must be transformed into and retreat, therefore, to spend the considerable time to bringing to.
Therefore, in the past, when when ahead running, boats and ships being stopped, as if being transformed into from advancing, clutch retreats, implement crash back, then control, reach the clutch pressure that motor can not stop according to the size of the actual revolution of motor, can not can make motor make underway boats and ships bring to rapidly (for example, with reference to patent documentation 4) with stopping.
Patent documentation 1: special fair 4-59458 communique
Patent documentation 2: the spy opens the 2001-227382 communique
Patent documentation 3: the spy opens the 2001-128388 communique
Patent documentation 4: the spy opens the 2001-71995 communique
Yet, in multicylinder engine in the past such shown in the above-mentioned patent documentation 1 with electronic fuel-injection system device, as shown in figure 21, can not supply with at certain cylinder in 6 cylinders (being the 4th cylinder in Figure 21) from the fuel of Fuelinjection nozzle the time, on the basis of the output of guaranteeing motor, make control from the delivery volume increment of the fuel of the Fuelinjection nozzle of the 2nd cylinder of the rear side of the burn cycle that is positioned at the 4th cylinder.
But, owing to only make part from the delivery volume increment of the fuel of the Fuelinjection nozzle of the 2nd cylinder, the control that delivery volume from the fuel of the Fuelinjection nozzle of the 6th cylinder of the rear side that is positioned at this burn cycle is reduced, therefore, carry out the minimizing of basis from the delivery volume of the fuel of the Fuelinjection nozzle of the 6th cylinder, and make delivery volume increment from the fuel of the Fuelinjection nozzle of the 3rd cylinder of the rear side of the burn cycle that is positioned at the 6th cylinder, have again, according to increase, and make delivery volume decrement from the fuel of the Fuelinjection nozzle of the 5th cylinder of the rear side of the burn cycle that is positioned at the 3rd cylinder from the delivery volume of the fuel of the Fuelinjection nozzle of the 3rd cylinder.This is because by from the supply at the fuel of the Fuelinjection nozzle of each cylinder, discerns for example 2 cylinders before the burn cycle of this cylinder, thus the rotating amount of decision bent axle.
Therefore, increase and decrease alternately from the delivery volume of the fuel of the Fuelinjection nozzle of each cylinder, produce inconsistently, the vibration of motor is very big.
In addition, in boost compensator in the past such shown in the above-mentioned patent documentation 2, the air quantity that sucks motor detects by sucking air quantity sensor or inspiratory pressure sensor (auxiliary pressure sensor), in an interim state at motor, when for example being in acceleration mode, according to the checkout value that is detected by the sensor, restriction is from the fuel injection amount of Fuelinjection nozzle, suppress the discharge of carbon black, and obtain good acceleration mode.
In this case, if sensor fault then can not limit the fuel injection amount from Fuelinjection nozzle rightly, when motor was transition state, fuel injection amount is increment always, discharged a large amount of black smokes from motor.
And, if sensor is set, then can not avoid the raising of cost, on the commodity strategy, also become adverse factors.
From this viewpoint, exist not rely on sensor, just can suppress discharge, and wish to obtain the requirement of good acceleration mode from the black smoke of motor.
In addition, shown in above-mentioned patent documentation 3, in a plurality of motors that are equipped on boats and ships etc. in the past, if at least one motor in a plurality of motors is owing to reduce output because of the fuel ejection failure of Fuelinjection nozzle etc., the rotating amount of the cardan shaft of the motor that then should output reduces reduces, and it is poor to produce rotation between remaining other the rotating amount of cardan shaft of normal motor.In this case, in above-mentioned device in the past,, make the rotating amount of cardan shaft of each motor synchronous because be to adjust by single governor lever, thus can not seek a plurality of motors synchronously.
In addition, shown in above-mentioned patent documentation 4, in boats and ships in the past, because when implementing crash back, size according to the actual revolution of motor is controlled, and reaches the clutch pressure that motor can not stop, so fast in ship's speed, be applied under the big situation of the load of motor, need be according to ship's speed, the figure that boosts of change clutch pressure can not promote clutch pressure, descend until ship's speed, the load of motor is reduced.Therefore, before ship's speed drops to a certain degree during, the essential clutch pressure that keeps certain regulation brings to underway boats and ships, needs the time.
Yet, in the diesel engine that motor was suitable for as boats and ships, detect the pressure (the auxiliary pressure) of pressurized air, adjust the control of being undertaken by boost compensator of fuel injection amount, retreat as if carrying out when implementing crash back, clutch being converted to from advancing, then particularly when low engine revolution, the auxiliary reduction, the fuel injection amount to motor that is undertaken by boost compensator is suppressed.In this case, above-mentionedly promote clutch pressure in the past if can not resemble, descend until ship's speed, load to motor reduces, the reduction of the actual revolution of the motor during then along with the enforcement crash back, fuel injection amount is suppressed, and shows strong motor and stops tendency, needs to adopt some countermeasures.
From above-mentioned, the present invention forms in view of relevant problem points, its purpose is, provide a kind of at the some cylinders in a plurality of cylinders when the fuel that can not supply with from Fuelinjection nozzle, can reduce the fuel controlling method of multicylinder engine of the vibration of motor energetically.
In addition, the present invention forms in view of relevant problem points, its purpose is, a kind of sensor that do not rely on is provided, just can suppress discharge, and can obtain the fuel injection amount controlling method of motor of good acceleration mode and the engine operating status method of discrimination that uses it from the black smoke of motor.
In addition, the present invention forms in view of relevant problem points, and its purpose is, even provide at least one the motor output in a kind of a plurality of motor to reduce, also can pass through single governor lever, seek advancing means with the synchronous a plurality of motors of remaining other motor.
In addition, the present invention forms in view of relevant problem points, its purpose is, providing a kind of can avoid when implementing crash back, because the motor that the control that boost compensator or reinforcement (な ま) are handled causes stops, and can make that boats and ships bring to rapidly reverse the fuel injection control device when the crash back of the motor of machine with deceleration peculiar to vessel.
Summary of the invention
To achieve these goals, in the present invention, as a kind of with respect to a plurality of cylinders, control is from the fuel controlling method of the multicylinder engine of the delivery volume of the fuel of Fuelinjection nozzle separately, has to rotating amount the rotation identification means that utilizes the cylinder before the burn cycle of this cylinder to discern by the bent axle that rotates at the supply from the fuel of Fuelinjection nozzle of cylinder.Like this, when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, before the burn cycle of this cylinder, change is based on the number of cylinders of the object cylinder of above-mentioned rotation identification means, so that the rotating amount of the bent axle of per at least 4 cylinders that the identification burn cycle is continuous, control simultaneously, make the cylinder that can not be supplied to fuel across this, the interval homogeneous of the burn cycle between the cylinder of the both sides, front and back that are positioned at burn cycle, and stop fuel supply to the Fuelinjection nozzle of the interval of the burn cycle cylinder fueling consistent with the cylinder that can not be supplied to fuel.
According to this specific item, because when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, before the burn cycle of the cylinder that can not be supplied to fuel, will be based on the number of cylinders of the object cylinder that rotates identification means, change at least 4 continuous cylinders of burn cycle, discern the rotating amount of the bent axle of each each cylinder, stop to be supplied to the fuel supply of the Fuelinjection nozzle of the consistent cylinder fueling of the cylinder of fuel to the interval of burn cycle and this, make across the cylinder that is not supplied to fuel, be positioned at the interval homogeneous of the burn cycle between the cylinder of both sides, front and back of burn cycle, so before the burn cycle of the cylinder that can not be supplied to fuel, the rotating amount of the bent axle of per at least 4 cylinders that the identification burn cycle is continuous, the delivery volume of decision fuel, on this basis, at the homogeneous that is spaced apart from the burn cycle between the cylinder that is not supplied to fuel of Fuelinjection nozzle.In view of the above, can lower energetically owing to the vibration of not carrying out the motor that the cylinder of fuel supply produces from Fuelinjection nozzle.
In addition, in said method, also can be when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, according to the vibration of motor, but the operation range of change motor.In this case, can suppress not inconsistent between burn cycle of the cylinder that carries out the cylinder of fuel supply and carry out fuel supply from Fuelinjection nozzle from Fuelinjection nozzle, but, can reduce the vibration of motor effectively in the operation range that is not motor by force.
Like this, in said method, also can when the fuel that can not supply with at the continuous a plurality of cylinders of the burn cycle in a plurality of cylinders from Fuelinjection nozzle, control, carry out fuel supply from Fuelinjection nozzle at remaining all cylinders.In this case, by the fuel supply of carrying out at remaining all cylinders, but can guarantee the operation range of motor.
Have again, in said method, also can be according to the auxiliary pressure of boost compensator generation, adjustment is at the fuel injection amount from Fuelinjection nozzle of each cylinder fueling, when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, control, remove the fuel injection amount adjustment of being undertaken by boost compensator.In this case, even because the cylinder that does not carry out fuel supply from Fuelinjection nozzle, and make auxiliary pressure drop low, by remove undertaken by boost compensator press corresponding fuel injection amount adjustment with auxiliary, do not exist along with motor output reduces and suppresses the situation of fuel injection amount yet.In view of the above, when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, can be, and the output of limiting engine owing to the fuel injection amount adjustment of being undertaken by boost compensator, but can enlarge the operation range of motor.
In addition, to achieve these goals, in the present invention, as the fuel injection amount controlling method of a kind of control by the motor of the emitted dose of the fuel of fuel injection valves inject, judge the transition state of motor, be judged to be motor when entering into transition state, or carry out in the control of regular period restriction from the maximum injection quantity of the fuel of Fuelinjection nozzle, or carry out the control that the convert fuel emitted dose is adjusted collection of illustrative plates, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle, or change control with respect to the reinforcement constant of the fuel injection amount of transient time, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle.
In addition, in said method, also can be under the steady running state, at variable quantity as the quantity of state of fixed value, that is, the variable quantity of the setting value of throttle opening or rail pressure emitted dose has surpassed under the situation of certain threshold value, judges that the operating condition of motor is a transition state.
According to these specific items, because be judged to be motor when entering into transition state, or carry out in the control of regular period restriction from the maximum injection quantity of the fuel of Fuelinjection nozzle, or carry out the control that the convert fuel emitted dose is adjusted collection of illustrative plates, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle, or change control with respect to the reinforcement constant of the fuel injection amount of transient time, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle, even so or sensor fault, or sensor is not set and not lift-launch, when motor enters into acceleration mode (transition state), also limited maximum injection quantity rightly from the fuel of Fuelinjection nozzle, when motor is in acceleration mode, do not have the unnecessarily maximum injection quantity of increment fuel, suppressed discharge effectively from the black smoke of motor.And not needing or not sensor itself by the maximum injection quantity of sensor restriction from the fuel of Fuelinjection nozzle, can not improve owing to sensor causes cost, highly beneficial on the commodity strategy.
In view of the above, do not rely on and detect the sensor that sucks air quantity, just can suppress discharge effectively, and can obtain good acceleration mode from the black smoke of motor.
In addition, to achieve these goals, in the present invention, as the advancing means of a plurality of motors, be provided with cardan shaft, single governor lever, control member, this cardan shaft has propeller cavitation with the axle head that a plurality of motors are connected separately respectively; This single governor lever is adjusted the rotating amount of the cardan shaft of above-mentioned each motor synchronously; This control member is controlled, when at least one the motor output in above-mentioned each motor reduces, the rotating amount of the cardan shaft of the motor that has reduced with respect to this output makes remaining other the rotating amount of cardan shaft of motor be reduced to synchronous rotating amount.
According to this specific item, because when at least one the motor output in motor reduces, control, make remaining other the rotating amount of cardan shaft of motor be reduced to the synchronous rotating amount of rotating amount of the cardan shaft of the motor that has reduced with this output, so even at least one motor in each motor is because the fuel ejection failure that Fuelinjection nozzle causes etc., output reduces, the rotating amount of cardan shaft reduces, it is poor also can not produce rotation between itself and remaining other the rotating amount of cardan shaft of normal motor, can pass through single governor lever, seek the synchronous of a plurality of motors.
Have again, in the above-described configuration, also can further reduce in the output of exporting the motor that reduces, in the time of can not obtaining propelling force, releasing is at the rotating amount of the cardan shaft of this motor and make remaining other the synchronous control of rotating amount of cardan shaft of motor, by governor lever, only remaining other the rotating amount of cardan shaft of motor is adjusted.In this case, certainly can avoid can not obtaining the motor of propelling force and normal motor because output reduces insignificant synchronously, guarantee the output that remaining other the normal motor under the state that output does not significantly reduce carries out, can keep the performance of a plurality of motors.
In addition, to achieve these goals, in the present invention, the fuel injection control device when the crash back as a kind of motor that reverses machine with deceleration peculiar to vessel, when the boats and ships when making ahead running bring to, be judged to be clutch is converted to from advancing and retreat, implemented crash back, and the actual revolution of motor reduces, and the actual revolution of motor is lower than the target revolution, or fuel injection amount owing to undertaken by boost compensator with auxiliary when pressing corresponding fuel injection amount adjustment to reach limiting quantity, carry out by one or more controls of avoiding motor to stop carried out of combination at least in the following method, that is that, undertaken and auxiliary releasing of pressing corresponding fuel injection amount to adjust by boost compensator, with make that undertaken by boost compensator and auxiliary change of pressing the such fuel injection amount of corresponding fuel injection amount increment to adjust collection of illustrative plates, and to increase the change that control response speed is the reinforcement of purpose constant when handling.
According to this specific item, because when implementing crash back, actual revolution at motor reduces, when being lower than the target revolution, or because boost compensator, when fuel injection amount reaches limiting quantity, carry out by one or more controls of avoiding motor to stop carried out of combination at least in the following method, promptly, the releasing that the fuel injection amount that is undertaken by boost compensator is adjusted, with undertaken by boost compensator adjust the change of collection of illustrative plates to the fuel injection amount of the increment side of fuel injection amount, and to increase the change that control response speed is the reinforcement of purpose constant when handling, even so when implementing crash back, clutch converted to from advancing retreat, motor is applied load, actual revolution descends, as long as the control of being undertaken by boost compensator of avoiding motor to stop with auxiliary releasing of pressing the adjustment of corresponding fuel injection amount, suppress the situation of fuel injection amount with regard to the reduction of the actual revolution that do not have the motor when implementing crash back.In addition, even when implementing crash back, clutch converted to from advancing retreat, motor is applied load, and actual revolution descends, as long as the control that the change of being undertaken by boost compensator that makes the such fuel injection amount of fuel injection amount increment adjust collection of illustrative plates accordingly with auxiliary pressure avoids motor to stop, when implementing crash back, even the actual revolution of motor reduces, fuel injection amount can not be suppressed yet, but by increment.Have again, even when implementing crash back, clutch converted to from advancing retreat, motor is applied load, actual revolution descends, as long as by being the reinforcement of the purpose control that the change of constant avoids motor to stop when handling, just can reduce the slippage of the actual revolution of the motor when the enforcement crash back, also can suppress inhibition degree to fuel injection amount to increase control response speed.In view of the above, by the above-mentioned control of avoiding motor to stop of avoiding one or more combinations in the control that motor stops to be carried out, can when implement crash back, can avoid because the motor that the control of boost compensator causes stops, and can boats and ships be brought to.
In addition, in said method, also can be on the above-mentioned basis of avoiding the control that motor stops, pressurization control is pressed in the injection that fuel is sprayed press supercharging.In this case, the supercharging that can spray press by fuel suppresses the increment of the fuel injection amount that produces along with the control of avoiding motor to stop and the generation of the flue dust (black smoke) that increases effectively.
Like this, in said method, also can press on the basis of pressurization control in above-mentioned injection, the injection timing that the fuel injection timing is lagged behind lags behind and controls.In this case, can suppress effectively along with spraying the combustion noise of pressing supercharging and increasing by the delay of fuel injection timing by spraying the fuel of pressing pressurization control and producing.
Have again, in said method, also can when being judged as crash back and being disengaged, remove the control that is judged to be when implementing crash back, return to the common control of implementing before the crash back.In this case, control, the injection of avoiding motor to stop when implementing crash back pressed pressurization control and injection timing delay control to get back to and implemented the preceding common control of crash back, can be when judging that crash back is disengaged, the flue dust (black smoke) that reduces the increment of the fuel injection amount that produces by the control of avoiding motor to stop when implementing crash back resembling originally and increase, and the combustion noise that increases along with the supercharging of spraying the fuel injection pressure of pressing pressurization control and producing etc.
The invention effect
According to the fuel controlling method of relevant multicylinder engine of the present invention, when the fuel that can not supply with at the some cylinders in a plurality of cylinders from Fuelinjection nozzle, can reduce the vibration of motor energetically.
Mainly be, when the fuel that can not supply with at some cylinders from Fuelinjection nozzle, before the burn cycle of the cylinder that can not be supplied to fuel, to change at least 4 continuous cylinders of burn cycle based on the number of cylinders of the object cylinder that rotates identification means, discern the rotating amount of each bent axle of each cylinder, stop to be supplied to the fuel supply of the Fuelinjection nozzle of the consistent cylinder fueling of the cylinder of fuel to the interval of burn cycle and this, make the interval homogeneous of the burn cycle between the cylinder that is positioned at both sides before and after the burn cycle of the cylinder that can not be supplied to fuel, in view of the above, before the burn cycle of the cylinder that can not be supplied to fuel, the rotating amount of each bent axle of at least 4 cylinders that the identification burn cycle is continuous, the delivery volume of decision fuel, on this basis, can make the interval homogeneous of the burn cycle between the cylinder that does not carry out fuel supply, reduce the vibration of motor energetically from Fuelinjection nozzle.
In addition, according to the fuel injection amount controlling method of relevant motor of the present invention and the engine operating status method of discrimination that uses it, can rely on sensor (for example auxiliary pressure sensor), and be limited in the maximum injection quantity of the fuel under the transition state of motor, discharge can be suppressed, and good acceleration mode can be obtained from the black smoke of motor.
Mainly be, judging that motor is when entering into transition state, or carry out in the control of regular period restriction from the maximum injection quantity of the fuel of Fuelinjection nozzle, or carry out the control that the convert fuel emitted dose is adjusted collection of illustrative plates, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle, or change control with respect to the reinforcement constant of the fuel injection amount of transient time, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle, in view of the above, when detecting the sensor fault that sucks air quantity, or when not carrying sensor, limit maximum injection quantity rightly from the fuel of Fuelinjection nozzle, can not rely on and detect the sensor that sucks air quantity, just can suppress discharge, and can access good acceleration mode from the black smoke of motor.
In addition,,, also can pass through single governor lever, seek and remaining other motor synchronous even the output of at least one motor in a plurality of motor reduces according to the advancing means of relevant a plurality of motors of the present invention.
Mainly be, when at least one the motor output in motor reduces, control, make remaining other the rotating amount of cardan shaft of motor be reduced to the synchronous rotating amount of rotating amount of the cardan shaft of the motor that has reduced with this output, in view of the above, it is poor can not produce rotation between the rotating amount of the cardan shaft of itself and normal motor, can pass through single governor lever, seeks the synchronous of a plurality of motors.
In addition, the fuel injection control device when the crash back according to the relevant motor that reverses machine with deceleration peculiar to vessel of the present invention, can avoid when implementing crash back,, and boats and ships are brought to rapidly because the motor that boost compensator or the control of strengthening handling cause stops.
Mainly be, when implementing crash back, actual revolution at motor reduces, when being lower than the target revolution, or passing through boost compensator, when fuel injection amount reaches limiting quantity, carry out by one or more controls of avoiding motor to stop carried out of combination at least in the following method, promptly, the releasing that the fuel injection amount that is undertaken by boost compensator is adjusted, with undertaken by boost compensator adjust the change of collection of illustrative plates to the fuel injection amount of the increment side of fuel injection amount, and to increase the change that control response speed is the reinforcement of purpose constant when handling, in view of the above, even when implementing crash back, clutch converted to from advancing retreat, motor is applied load, actual revolution descends, the control of being undertaken by one or more combinations of avoiding in the control that motor stops of avoiding motor to stop, can when implement crash back, can avoid because the motor that the control of boost compensator causes stops, and can boats and ships be brought to.
Description of drawings
Fig. 1 is the summary pie graph that the integral body that is applied in the common rail type fuel injection system in 6 cylinder engines peculiar to vessel of the relevant embodiments of the present invention of expression constitutes.
Fig. 2 is the performance plot of fuel injection amount of representing each cylinder of burn cycle in the normal state.
Fig. 3 be expression at certain cylinder, can not spray the performance plot of fuel injection amount of each cylinder of the burn cycle under the condition of supplying at fuel from sparger.
Fig. 4 is illustrated in the performance plot of fuel injection amount that has stopped can not spraying at the interval of fuel cycle and fuel each cylinder of the burn cycle under the state that the fuel of the sparger of the 6th consistent cylinder of the 4th cylinder of supply and the 5th cylinder injection fueling sprays.
Fig. 5 is illustrated in common state and has stopped the performance plot at the fuel injection amount characteristic of the revolution of motor under the state that the fuel at the sparger of each cylinder sprays.
Fig. 6 is illustrated in common state and has stopped the performance plot at the characteristic of the Engine torque of the revolution of motor under the state that the fuel at the sparger of each cylinder sprays.
Fig. 7 is the summary pie graph of applied accumulator fuel injection device in the fuel injection amount controlling method of the motor of the band pressurized machine of relevant embodiments of the invention 2.
Fig. 8 is the control block diagram that same being used to determines fuel injection amount.
Fig. 9 is the same independent performance plot of representing the characteristic of the auxiliary pressure with respect to the time for acceleration of motor, fuel injection amount, engine revolution of difference.
Figure 10 is the performance plot that is illustrated in the characteristic of the maximum injection quantity of applied fuel with respect to engine revolution in the fuel injection amount controlling method of motor of band pressurized machine of relevant embodiments of the invention 3.
Figure 11 is expression with the applied fuel injection amount with respect to the motor time for acceleration in the boost compensator function valid period in the fuel injection amount controlling method of the motor of the band pressurized machine of relevant embodiments of the invention 4, carries out the performance plot of the state handled by big reinforcement constant.
Figure 12 is the stereoscopic figure of spitkit of advancing means with a plurality of motors of relevant embodiments of the present invention.
Figure 13 is the figure of the formation of expression advancing means.
Figure 14 is the performance plot of expression with respect to the characteristic of the target revolution of each motor of governor lever angle.
Figure 15 is the oil return line figure that the deceleration peculiar to vessel of relevant embodiments of the present invention reverses machine.
Figure 16 is the summary pie graph that deceleration peculiar to vessel reverses machine.
Figure 17 is the flow chart of the flow process of the control that controller carried out of the boats and ships of expression when making by ahead running when bringing to.
Figure 18 is the performance plot of the characteristic of the rotation slippage of the diesel engine of constant when representing with respect to reinforcement.
Figure 19 (a) is expression with respect to the performance plot of the characteristic of the amount of the flue dust of fueling injection pressure and combustion noise.Figure 19 (b) is the performance plot of expression with respect to the characteristic of the combustion noise of fuel injection timing.
Figure 20 is the performance plot at the characteristic of the rotation slippage of the diesel engine of the maximum injection quantity of fuel of the relevant variation of expression.
Figure 21 is illustrated in relevant certain cylinder at motor of example in the past, can not spray the performance plot of fuel injection amount of each cylinder of the burn cycle under the condition of supplying from the fuel of sparger.
Symbol description
11 6 cylinder diesel engine (multicylinder engine)
111 bent axles
1100 rotation identification means
12 spargers (Fuelinjection nozzle)
21 spargers (Fuelinjection nozzle)
221 auxiliary pressure sensors (sensor)
32 lefthand engines (motor)
33 right engines (motor)
34c, 35c cardan shaft
36 left screws
37 right side propeller cavitations
316 governor levers
314 controllers (control member)
411 forward clutch
412 back clutch
413 forward-reverse changing valves (clutch)
E diesel engine, motor
Embodiment
Below, with reference to the accompanying drawings, the mode that is used to implement the best of the present invention is described.
The integral body that Fig. 1 is illustrated in the common rail type fuel injection system that uses in many cylinders diesel engine of relevant embodiments of the invention 1 constitutes.
This common rail type fuel injection system has a plurality of (being six in this example) sparger 12,, supply pump 13, altogether rail 15, electronic control unit 110, this sparger 12 ... as the Fuelinjection nozzle that carries on each of each cylinder of 6 cylinder diesel engine 11 (calling motor in the following text) peculiar to vessel; These supply pump 13 launched machine 11 rotations drive; Rail 15 is formed with the pressure accumulating chamber to the fuel under high pressure pressure accumulation of being discharged by this supply pump 13 altogether; The sparger 12 of these electronic control unit 110 each cylinders of electronic control and supply pump 13.
The sparger 12 of each cylinder is to be connected with high-voltage tube (not shown go out), and will in the firing chamber of each cylinder of motor 11, spray the fuel injection nozzle of supplying with in the fuel under high pressure that is total to rail 15 pressure accumulations, this high-voltage tube is attached at from the downstream of a plurality of branched pipes (high press fit pipe path) 116 that are total to rail 15 branches.The injection of the fuel that carries out to motor 11 from these spargers 12 is by the control of the injection the way that is arranged on the fuel passage in the sparger 12 being switched on solenoid valve (not shown go out) and stop to switch on (ON/OFF) comes electronic control.That is, during the injection control of the sparger 12 of each cylinder is with the valve opening solenoid valve, be total in the firing chamber of injected each cylinder that supplies to motor 11 of the fuel under high pressure of rail 15 pressure accumulations.
Inlet amount adjusting valve 14 is to drive the loop by the not shown pump that goes out, by from the control signal (pump drive signal) of electronic control unit 110 by electronic control, the intake adjustment of intake of adjusting the fuel in the pressurized chamber that is inhaled into supply pump 13 is with solenoid valve (pump inlet valve), thus change with from the pressure (call common rail pressure) of each sparger 12 in motor 11 sprays the suitable common rail 15 of the jet pressure (fuel pressure) supplied with.This inlet amount adjusting valve 14 is that then the valve state is the pump flow control valve (solenoid valve) of the open type of full-gear if stop energising.
Needing continuously to common rail 15, therefore pressure accumulation, by fuel distribution tube (high press fit pipe path) 113, is connected with the exhaust port of the supply pump 13 of discharging fuel under high pressure to the high pressure suitable with jet pressure.In addition, turn back to fuel tank 19 from the leaked fuel of sparger 12 and from the leaked fuel of supply pump 13 through leaking pipe arrangement (low-pressure passage) 114.In addition, to from rail 15 altogether on the decompression pipe arrangement (low-pressure passage) 115 that the fuel of fuel tank 19 reduces pressure, pressure restrictor 16 is installed, this pressure restrictor 16 is used for release pressure, makes the common rail pressure can pressure accumulation pressure beyond the mark (boundary is set and pressed).
In addition, electronic control unit 110 has emitted dose injection timing decision member, injection pulse width decision member, sparger driving component, the corresponding only target injection timing of operating condition (injection beginning period) of this emitted dose injection timing decision member decision and motor 11, from the sparger 12 of each cylinder target emitted dose (between injection period) to the fuel of motor 11 injections; The operating condition and the sparger injection pulse of corresponding injection pulse time of target emitted dose (injection pulse width) of this injection pulse width decision member calculation and motor 11; This sparger driving component drives the loop by sparger, controls to the injection of each sparger 12 and applies the sparger injection pulse with solenoid valve.Promptly, it constitutes electronic control unit 110, according to by rotation speed sensor 121 detected engine rotary speeds (below be called engine revolution) and by the engine running information of accelerator open degree sensor 122 detected accelerator open degrees etc., calculate the target emitted dose, corresponding with the injection pulse width of calculating from the operating condition and the target emitted dose of motor 11, apply the sparger injection pulse to the injection control of the sparger 12 of each cylinder with solenoid valve.In view of the above, motor 11 turns round.
Like this, electronic control unit 110 also is that calculation is equivalent to and the target of the corresponding only fueling injection pressure of operating condition of motor 11 rail pressure altogether, drives the loop by pump, drives the discharge capacity control member of the inlet amount adjusting valve 14 of supply pump 13.Promptly, it constitutes electronic control unit 110, by rotation speed sensor 121 detected engine revolutions and by the engine running information of accelerator open degree sensor 122 detected accelerator open degrees etc., and then add correction by cooling water temperature sensor 123 detected engine coolant temperature, calculate target rail pressure altogether, be total to rail pressure in order to reach this target, and export control signals to the inlet amount adjusting valve 14 of supply pump 13.
In addition, on electronic control unit 110, by crankshaft rotating quantity sensor 124, input is according to each the rotating amount of bent axle 111 at each cylinder of burn cycle of the reiteration of the 1st cylinder, the 4th cylinder, the 2nd cylinder, the 6th cylinder, the 3rd cylinder, the 5th cylinder.Like this, electronic control unit 110 has rotation identification means 1100, this rotation identification means 1100 as shown in Figure 2, for example, by the cylinder more than 2 (being the 6th cylinder and the 3rd cylinder among Fig. 2) before the burn cycle of this cylinder (spraying the 5th cylinder of fuelings), discern by rotating amount from the bent axle 111 that rotates at the injection supply of the fuel of the sparger 12 of the 5th cylinder from sparger 12.This rotation identification means 1100 as shown in Figure 3, can not spray supply at the some cylinders in 6 cylinders (being the 4th cylinder in the drawings) time from the fuel of sparger 12, the number of cylinders of object cylinder is changed to 6 cylinders from 2 cylinders, so that discerned the rotating amount of all bent axles of 6 continuous cylinders of burn cycle in the past in the burn cycle of this cylinder (the 4th cylinder).In this case, detection can not spray supply at the some cylinders in 6 cylinders time from the fuel of sparger 12, be to be undertaken by the fuel pressure detecting sensor 125 that is arranged in the common rail 15, by this fuel pressure detecting sensor 125, be not subjected to carry out fuel from sparger 12 and spray the influence of supplying with, utilize situation about not producing to detect because of spraying the reduction of supplying with the common rail pressure that causes at cylinder arbitrarily.
Like this, electronic control unit 110 is in the time can not spraying supply from the fuel of sparger 12 at the some cylinders in 6 cylinders (being the 4th cylinder) in Fig. 3, as shown in Figure 4, control, make can not injected fueling across this 4th cylinder, at the 1st cylinder of the both sides, front and back of burn cycle and interval (skipping the interval of the 1 cylinder) homogeneous of the burn cycle between the 2nd cylinder, stop to spray at the fuel of the sparger 12 of the interval of burn cycle the 6th cylinder consistent and the 5th cylinder injection fueling with the 4th cylinder that can not injected fueling.At this moment, number of cylinders by the object cylinder discerned of rotation identification means 1100 is changed to 4 cylinders, so that before the burn cycle of the cylinder that sprays fueling by sparger 12, the rotating amount of the bent axle 111 of 4 cylinders (also comprising the cylinder that does not have injected fueling) that the identification burn cycle is continuous.In addition, at 3 cylinders from the fuel injection amount of sparger 12 with carry out the situation that fuel sprays from sparger 12 to whole 6 cylinders and compare, approximately double, sought to keep the output of motor.
In addition, electronic control unit 110 can not spray supply at the some cylinders in 6 cylinders (being the 4th cylinder) in Fig. 3 the time from the fuel of sparger 12, according to the vibration of motor 11, but the operation range of change motor 11.In this case, as shown in Figure 5, be predetermined according to vibration by motor 11, select with respect to two characteristics (characteristic of representing by single-point line and double dot dash line in the drawings) at the fuel injection amount of the sparger 12 of each cylinder of revolution.In addition, the characteristic shown in the solid line is the common situation that expression is not carried out at the fuel injection from sparger 12 of all cylinders with hindering in Fig. 5.In addition, each characteristic also can be found out from the characteristic with respect to the Engine torque of engine revolution as shown in Figure 6.
On this basis, electronic control unit 110 can not spray from the fuel at the sparger 12 of the continuous cylinder more than 2 of the burn cycle in a plurality of cylinders when supplying with, control,, carry out injection supply from the fuel of sparger 12 at remaining whole cylinders.For example, in the time can not spraying fueling from sparger 12 at continuous the 1st cylinder of burn cycle and two cylinders of the 4th cylinder, control, at all cylinders of remaining the 2nd cylinder, the 6th cylinder, the 3rd cylinder and the 5th cylinder, carry out injection supply from the fuel of sparger 12.
Have, at the sparger 12 of each cylinder injection fueling, according to the auxiliary pressure based on boost compensator, its fuel injection amount is adjusted again.Like this, electronic control unit 110 is controlled can not spray supply from the fuel of sparger 12 at the some cylinders in 6 cylinders time, removes the fuel injection amount adjustment based on boost compensator.
Therefore, in the above-described embodiment, can not spray supply at the some cylinders in 6 cylinders (for example the 4th cylinder) time from the fuel of sparger 12, will be based on the number of cylinders of the object cylinder that rotates identification means 1100, before the burn cycle of the 4th cylinder that can not injected fueling, change to 6 continuous whole cylinders of burn cycle, discern each the rotating amount of bent axle 111 of each cylinder, at the interval of burn cycle and this can not injected fueling consistent the 6th cylinder and the 5th cylinder of the 4th cylinder, the fuel that stops to spray the sparger 12 of fueling sprays, make across the cylinder that does not have injected fueling, the interval homogeneous of the burn cycle between cylinder in the both sides, front and back of burn cycle, therefore, fuel can not injected supply the burn cycle of cylinder before, the rotating amount of the bent axle 111 of 6 each all cylinders that the identification burn cycle is continuous, the emitted dose of decision fuel, on this basis, also make the interval homogeneous of the burn cycle between the cylinder that does not spray fueling from sparger 12.In view of the above, can reduce energetically because the not vibration of spraying the motor that cylinder produced 11 of fueling from sparger 12.
In addition, because can not spray supply at the some cylinders in 6 cylinders time from the fuel of sparger 12, be predetermined according to vibration by motor 11, with respect to revolution at two characteristics of the fuel injection amount of the sparger 12 of each cylinder (in Fig. 5, by the characteristic that single-point is rule and double dot dash line is represented), but change the operation range of motor 11, spray the cylinder of fuelings and spray inconsistent between the burn cycle of cylinder of fuelings from sparger 12 so can be suppressed at not from sparger 12, but can reduce the vibration of motor 11 effectively in the operation range that is not motor 11 by force.
Then, because in the time can not spraying fueling from sparger 12 at the continuous cylinder more than 2 of the burn cycle in 6 cylinders, control, carry out spraying supply at remaining all cylinders from the fuel of sparger 12, so supply with by injection, but can guarantee the operation range of motor 11 at the fuel of remaining all cylinder.
Have again, because can not spray supply at the some cylinders in 6 cylinders time from the fuel of sparger 12, control, what releasing produced based on boost compensator presses corresponding fuel injection amount adjustment with auxiliary, even so cause auxiliary pressure drop low because of the cylinder that does not spray fuelings from sparger 12, by based on boost compensator and auxiliary releasing of pressing corresponding fuel injection amount to adjust, do not have that output along with motor 11 reduces and the situation that suppresses fuel injection amount.In view of the above, can not spray supply at the some cylinders in 6 cylinders time from the fuel of sparger 12, can be owing to based on the fuel injection amount adjustment of boost compensator and the output of limiting engine 11, but can enlarge the operation range of motor 11.
In addition, the present invention is not limited only to above-mentioned mode of execution, also comprises other all variation.For example, in the above-described embodiment,, used 6 cylinder engines, but, can both be applied in all motors so long as whether the above even number cylinder engine of 4 cylinders is no matter peculiar to vessel as multicylinder engine.
Embodiment 2
Then, with reference to the accompanying drawings, embodiments of the invention 2 are described.
In present embodiment 2, the 6 cylinder boats and ships that the present invention are applied in the band pressurized machine are described with the situation in the diesel engine.
The formation explanation of-fuel injection system-
At first, the integral body formation that is applied in the fuel injection system in the motor to relevant present embodiment 2 describes.Fig. 7 is illustrated in 6 cylinder boats and ships of band pressurized machine with the accumulator fuel injection device that is had in the diesel engine (being illustrated among Fig. 8).
This accumulator fuel injection device has a plurality of Fuelinjection nozzles (calling sparger in the following text) 21 of installing accordingly with each cylinder of the diesel engine (following abbreviation motor) of being with pressurized machine, 21,, pressure accumulation than the common rail 22 of the fuel under high pressure of higher pressure (press in the rail altogether: for example 100MPa), will be forced into high pressure via the fuel that low pressure pump (feed pump) 26 sucks from fuel tank 24, and the above-mentioned sparger 21 of high-pressure service pump 28, electronic control of in being total to rail 22, discharging, 21 ... and the controller of high-pressure service pump 28 (ECU) 212.
The supply fuel feed pump that above-mentioned high-pressure service pump 28 for example is so-called plunger type, this pump is driven by motor E, according to operating condition etc., fuel is boosted to predetermined high pressure, by fuel supply pipe arrangement 29, supplies with to rail 22 altogether.For example, this high-pressure service pump 28 is by gear (being called power transfer member in the present invention), but transferring power be connected on the bent axle of motor E.In addition, other formation as this power transfer member, also can or on the bent axle of the live axle of high-pressure service pump 28 and motor E, belt pulley be set respectively, belt holder is located on this belt pulley, can transferring power, or sprocket wheel is set on each, and chain frame is located on this sprocket wheel, can transferring power.
Each sparger 21,21 ... be installed in the downstream of the fuel distribution tube that rail 22 together is communicated with respectively.For example, the not shown injection control that goes out that is assembled into this sparger integratedly controls from the injection of the fuel of this sparger 21 by being switched on solenoid valve and stop energising (ON/OFF).That is, sparger 21 will be by the fuel under high pressure that is total to rail 22 supplies to the injection of the firing chamber of motor E during this injection control is with the valve opening solenoid valve.
In addition, above-mentioned controller 212 is transfused to the various engine informations of engine revolution or engine load etc., export control signal to above-mentioned injection control with solenoid valve, so that obtain the fuel injection timing and the fuel injection amount of the best of judging according to these signals.Simultaneously, 212 pairs of high-pressure service pumps of controller, 28 output control signals so that corresponding to engine revolution or engine load, make fueling injection pressure reach optimum value.Have again, on being total to rail 22, be installed with and be used to detect the pressure transducer 213 of pressing in the common rail, to controlling to the fuel discharge capacity of rail 22 discharges altogether, so that the signal of this pressure transducer 213 corresponding to engine revolution or engine load, reaches predefined optimum value from high-pressure service pump 28.
To the fuel supply of each sparger 21 action is to carry out from the branched pipe 23 that rail 22 altogether begins the part by constituting fuel flow path.That is, via filter 25, the fuel that is taken out and be pressurized to the suction pressure of regulation by low pressure pump 26 is transported to high-pressure service pump 28 by fuel pipe 27 from fuel tank 24.Then, the fuel that supplies to this high-pressure service pump 28 is stored in common rail 22 boosted under the state of authorized pressure, from rail 22 altogether to each sparger 21,21 ... supply with.Pattern (the number of cylinders of sparger 21 corresponding motor E, be 6 cylinders in the manner) be provided with a plurality of, by the control of controller 212, at the injection timing of the best, with the fuel injection amount of the best, will be ejected in the corresponding firing chamber by the fuel of rail 22 supplies altogether.Because the injection of the fuel that sprays from sparger 21 press with the pressure of the fuel that is stored in common rail 22 about equally, spray and press so will control fuel, will control the pressure in the common rail 22.
In addition, supply to not being depleted to the fuel in the injection of firing chamber and pressing the residual fuel under the excessive rising situation to turn back to fuel tank 24 in the rail altogether the fuel of sparger 21 from branched pipe 23 by recurrent canal 211.
The information of cylinder number and crankshaft angles is imported in the above-mentioned controller 212 as electronic control unit.This controller 212 is according to engine operating status, with predefined target fuel injection conditions (for example, target fuel injection timing, target fuel injection amount, target is pressed in the rail altogether) store as function, so that motor output reaches the best output that adapts with operating condition, and corresponding expression is by the signal of the detected current engine operating status of various sensors, by calculation, obtain target fuel injection conditions (promptly, the fuel injection time point of sparger 21 and emitted dose), to the action of sparger 21 and altogether in the rail fuel pressure control, carry out fuel with this condition and spray.
Fig. 8 represents to be used to determine the controller chassis pie graph of the controller 212 of fuel injection amount.As shown in Figure 8, calculating of fuel injection amount is that the instruction revolution is calculated the aperture signal that member 212A receives the operated regulator 220 of user, and this instruction revolution is calculated member 212A and calculated and the aperture of regulator [instruction revolution] accordingly.Then, emitted dose calculation member 212B calculation fuel injection amount makes engine revolution become this instruction revolution.In the sparger 21 of motor E, carry out fuel injection event with the fuel injection amount of trying to achieve by this calculation, under this state, revolution is calculated member 212C and is calculated actual engine revolution, this actual engine revolution and above-mentioned instruction revolution are compared, revise (feedback control) fuel injection amount, make this actual engine revolution near the instruction revolution.
Then, as shown in Figure 7, the acceleration mode determination means 212D of the acceleration mode of judging motor E is set on controller 212.When this acceleration mode determination means 212D surpasses predefined specified value at the variable quantity of the regulator aperture that is input to controller 212, be judged to be acceleration mode.
In addition, have the auxiliary pressure sensor 221 of the pressure (the auxiliary pressure) of the pressurized air that comes automatic pressure intensifier that detection supplies with to motor E, be imported into controller 212 from the signal of this auxiliary pressure sensor 221.Like this, controller 212 has corresponding to auxiliary pressure sensor 221 detected auxiliary pressures, adjusts the function that boost compensator produced from the fuel injection amount of sparger 21.Specifically, controller 212 is when judging that by acceleration mode determination means 212D motor E enters into acceleration mode, promptly, when motor E enters into the acceleration mode of transition state, even the revolution of motor E reduces, auxiliary pressure does not rise yet, by the function that boost compensator produced, also can suppress maximum injection quantity, suppress the discharge of black smoke to the fuel of motor E.In this case, press corresponding fuel injection amount to adjust function based on boost compensator with auxiliary, enter from motor E acceleration mode begin to through the stipulated time (for example several 10 seconds) before during carry out, be determined as the boost compensator function valid period (being illustrated among Fig. 9).
Then, as shown in Figure 9, even controller 212 is because the fault of above-mentioned auxiliary pressure sensor 221, can not carry out adjusting function based on the fuel injection amount of boost compensator, also, control being judged to be motor E by acceleration mode determination means 212D when entering into acceleration mode with auxiliary the pressure accordingly, during process is certain, that is, during before the boost compensator function valid period, the maximum injection quantity of the fuel of the device of self-injection in the future 21 is restricted to not enough specified value Q.
Therefore, in the foregoing description 2, because having, controller 212 is being judged to be motor E by acceleration mode determination means 212D when entering into acceleration mode, through (boost compensator function valid period) during certain before during, the maximum injection quantity of the fuel of the device of self-injection in the future 21 is restricted to the function of not enough specified value Q, even so auxiliary pressure sensor 221 faults, press corresponding fuel injection amount adjustment function not play a role with auxiliary based on boost compensator, also can be when motor E enters into acceleration mode, limit maximum injection quantity rightly from the fuel of sparger 21, when motor E is acceleration mode, make the maximum injection quantity of fuel be no more than specified value Q, suppress discharge effectively from the black smoke of motor E.And, there is no need to limit maximum injection quantity from the fuel of sparger 21 by auxiliary pressure sensor 221, also can not need auxiliary pressure sensor 221 own, not exist the cost that causes by auxiliary pressure sensor 221 to rise, highly beneficial on the commodity strategy.
In view of the above, can not rely on auxiliary pressure sensor 221, one side suppresses the discharge from the black smoke of motor E effectively, and one side can obtain good acceleration mode.
Embodiment 3
Then, according to Figure 10, embodiments of the invention 3 are described.
In this embodiment 3, changed the formation of the acceleration mode determination means of the acceleration mode of judging motor.In addition, except that the acceleration mode determination means, other formation is identical with the situation of the foregoing description 2, and the identical symbol of part mark for identical omits its detailed explanation.
Promptly, in present embodiment 3, the acceleration mode determination means of the acceleration mode of judging motor E is set on controller 212, and when this acceleration mode determination means had surpassed predefined specified value at the variable quantity of the actual revolution of the motor E that is input to controller 212, being judged to be was acceleration mode.Like this, as shown in figure 10, even controller 212 is because the fault of above-mentioned auxiliary pressure sensor 211, press corresponding burner oil adjustment function not work with auxiliary based on boost compensator, also can be judged to be motor E by acceleration mode determination means 212D when entering into acceleration mode, during motor E enters into acceleration mode, promptly, the engine revolution that enters into acceleration mode reach before the regulation revolution N during (boost compensator function valid period), carry out fuel injection amount is adjusted the control that collection of illustrative plates characteristic (thick wave shown in Figure 10) when stablizing converts characteristic (heavy line shown in Figure 10) when quickening to, so that the maximum injection quantity of the fuel of the device of self-injection in the future 21 is restricted to not enough specified value Q.In addition, fine line shown in Figure 10 is represented auxiliary pressure sensor 221 just often separately respectively, according to by auxiliary pressure sensor 221 detected auxiliary pressures, will convert the characteristic of the boost compensator collection of illustrative plates in six stages at the characteristic of the fuel injection amount of engine revolution.
Therefore, in the foregoing description 3, because having, controller 212 is being judged to be motor E by the acceleration mode determination means when entering into acceleration mode, convert characteristic (heavy line shown in Figure 10) when quickening to by fuel injection amount being adjusted collection of illustrative plates characteristic (thick wave shown in Figure 10) when stablizing, and the maximum injection quantity of the fuel of the device of self-injection in the future 21 is restricted to the function of not enough specified value Q, therefore, even the fault of auxiliary pressure sensor 221, follow with auxiliary press accordingly and adjust function based on the fuel injection amount of the characteristic of the boost compensator collection of illustrative plates of boost compensator and do not work, also can be when motor E enters into acceleration mode, suitably limit maximum injection quantity from the fuel of sparger 21, when motor E is in acceleration mode, make the maximum injection quantity of fuel be no more than specified value Q, suppress discharge effectively from the black smoke of motor E.And, making does not need by the maximum injection quantity of auxiliary pressure sensor 221 restrictions from the fuel of sparger 21, do not need auxiliary pressure sensor 221 itself to become possibility, do not exist the cost that is caused because of auxiliary pressure sensor 221 to rise, highly beneficial on the commodity strategy.
In view of the above, can not rely on auxiliary pressure sensor 221, one side suppresses the discharge from the black smoke of motor E effectively, and one side can obtain good acceleration mode.
Embodiment 4
Then, according to Figure 11, embodiments of the invention 4 are described.
In this embodiment 4, changed the formation of the acceleration mode determination means of the acceleration mode of judging motor.In addition, except that the acceleration mode determination means, other formation is identical with the situation of the foregoing description 2, and the identical symbol of part mark for identical omits its detailed explanation.
Promptly, in present embodiment 4, the acceleration mode determination means 212D of the acceleration mode of judging motor E is set on controller 212, by this acceleration mode determination means 212D, when the variable quantity of the regulator aperture that is input to controller 212 had surpassed predefined specified value, being judged to be was acceleration mode.Like this, as shown in figure 11, even controller 212 is in the fault owing to above-mentioned auxiliary pressure sensor 221, press corresponding burner oil adjustment function not work with auxiliary based on boost compensator, also can be judged to be motor E by acceleration mode determination means 212D when entering into acceleration mode, during motor E enters into acceleration mode, promptly, the engine revolution that enters into acceleration mode reach before the regulation revolution during (boost compensator function valid period), the control that reinforcement constant at the fuel injection amount of time for acceleration of motor E is changed significantly, make it from strengthen the processing (wave shown in Figure 11) of constant based on the first-order lag by general first-order lag filter, with respect to by the corresponding characteristic of auxiliary pressure sensor 221 detected auxiliary pressures (shown in Figure 11 single-point line), become processing (solid line shown in Figure 11), so that restriction is from the maximum injection quantity of the fuel of sparger 21 based on the big reinforcement constant that passes through filter.
Therefore, in the foregoing description 4, because having, controller 212 is being judged to be motor E by acceleration mode determination means 212D when entering into acceleration mode, during preceding through (boost compensator function valid period) during certain, by the reinforcement constant at the fuel injection amount of time for acceleration of motor E is changed significantly, make it with respect to by the corresponding characteristic of auxiliary pressure sensor 221 detected auxiliary pressures (shown in Figure 11 single-point line), become processing (solid line shown in Figure 11) based on the big reinforcement constant that passes through filter, thereby the maximum injection quantity of the fuel of the device of self-injection in the future 21 is restricted to the function of not enough specified value Q, even so fault of auxiliary pressure sensor 221, follow with auxiliary press accordingly and adjust function based on the fuel injection amount of the characteristic of the boost compensator collection of illustrative plates of boost compensator and do not work, also can be when motor E enters into acceleration mode, suitably limit maximum injection quantity from the fuel of sparger 21, when motor E is in acceleration mode, make the maximum injection quantity of fuel be no more than specified value Q, suppressed discharge effectively from the black smoke of motor E.And, making does not need by the maximum injection quantity of auxiliary pressure sensor 221 restrictions from the fuel of sparger 21, do not need auxiliary pressure sensor 221 itself to become possibility, do not exist the cost that causes because of auxiliary pressure sensor 221 to rise, highly beneficial on the commodity strategy.
In view of the above, can not rely on auxiliary pressure sensor 221, one side suppresses the discharge from the black smoke of motor E effectively, and one side can obtain good acceleration mode.
In addition, the present invention is not limited only to the various embodiments described above, also comprises other all variation.For example, in the various embodiments described above, though under the situation of auxiliary pressure sensor 221 faults of being equipped, if judge that by the acceleration mode determination means motor E enters into acceleration mode, the maximum injection quantity of then carrying out the fuel of self-injection device 21 in the future is restricted to the control of not enough specified value Q during preceding through (boost compensator function valid period) during certain, but, also can be applied in initial situation of just not carrying auxiliary pressure sensor, in this case, do not exist the cost that causes because of auxiliary pressure sensor to rise, more favourable on the commodity strategy.
In addition, in the various embodiments described above, though or when the variable quantity of regulator aperture surpasses predefined specified value, being judged to be by acceleration mode determination means 212D is acceleration mode, or when the variable quantity of the actual revolution of motor E surpasses predefined specified value, being judged to be by the acceleration mode determination means is acceleration mode, but, can certainly be the variable quantity of basis from total emitted dose of the fuel of sparger, the variable quantity of the target revolution of motor, the target revolution of motor and the deviation of actual revolution, be total to the pressure variety in the rail, perhaps be total to the collection of illustrative plates value of rail internal pressure and the deviation of measured value etc., be judged as the acceleration mode determination means that motor enters into acceleration mode.
Have again, in the various embodiments described above, the situation of 6 cylinder marine diesel engines that the present invention is applied in the band pressurized machine is illustrated, still, also can be applied in the various forms of motors such as 4 cylinder marine diesel engines.In addition, also be not limited to marine engine, also can be applied to vehicle with waiting in the motor that in other purposes, uses.
Embodiment 5
Then, with reference to the accompanying drawings, embodiments of the invention 5 are described.
Figure 12 is the stereoscopic figure of spitkit of advancing means with a plurality of motors of relevant embodiments of the invention 5, Figure 13 is the figure of the formation of expression advancing means, as shown in figure 12, on spitkit 31, equipping two left sides and right engine 32,33.
In Figure 13, advancing means A has left side and right engine 32,33, be constituted as the left side and the right side power transmitting deice 34,35 of navigation driver respectively, on cardan shaft 34c, the 35c of this two power transmitting deice 34,35, connecting left side and right side propeller cavitation 36,37 respectively separately.Driving force one side from above-mentioned lefthand engine 32 is slowed down by left side power transmitting deice 34, and one side is passed to left screw 36, and its result is that left screw 36 rotations drive.On the other hand, slowed down by right side power transmitting deice 35 from the driving force one side of above-mentioned right engine 33, one side is passed to right side propeller cavitation 37, and its result is that propeller cavitation 37 rotations in right side drive.In addition, in advancing means A, between left side and right engine 32,33 and left side and right side power transmitting deice 34,35, generator is installed or have the left side of generator property and the right side generating with machine 38,39.Like this, drive electric power that left side and right side generating generate electricity with machine 38,39 or be used for use by left side and right engine 32,33, or supply with as electric power in the ship as the driving of left side described later and dextral motor 310,311.
Then, to from the left side and right engine 32,33 to the left side and the power transfer path of right side propeller cavitation 36,37 describe separately.
At first, to 36 power transfer path describes from lefthand engine 32 to left screw, the bent axle 32a of lefthand engine 32 is connected with input shaft 34a at the left side power transmitting deice 34 of general horizontal direction configuration.In left side power transmitting deice 34, input shaft 34a is by clutch 34d, by first 34e of bevel gear portion, with the upper end portion binding of the passing shaft 34b that disposes in the approximate vertical direction, the underpart of passing shaft 34b and cardan shaft 34c link by second 34f of bevel gear portion.
The constituting of cardan shaft 34c of left side power transmitting deice 34 is connected with the live axle 36a of left screw 36, has left screw 36 at the axle head of cardan shaft 34c.Like this, the driving of lefthand engine 32 output then, by clutch 34d, passing shaft 34b and cardan shaft 34c, is passed to the live axle 36a of left screw 36 from the input shaft 34a that bent axle 32a is passed to left side power transmitting deice 34.The non-binding of binding of clutch 34d conversion input shaft 34a and passing shaft 34b, have simultaneously with the rotation of input shaft 34a when passing shaft 34b transmits, change the function of its sense of rotation.
In addition, in the upper end portion of left side power transmitting deice 34 sinistral motor 310 is being set.The output shaft 310a of this sinistral motor 310 is connected with passing shaft 34b.
The generating of above-mentioned left side for example is constituted as high frequency generator with machine 38, at the carry-out part of this generating with machine 38, is connecting left side relay (electromagnetism shutter) 321, left side rectification machine 322, left side DC/DC changer 323 successively.In addition, by 322 rectifications of left side rectification machine. generating electricity with the electric power of machine 38 of smoothing from the left side, be transformed to interchange by inverter 324, can be used as alternating electromotive force (AC electric power) and in ship, supply with.
On the other hand, the power transfer path from right engine 33 to right side propeller cavitation 37 is described, the bent axle 33a of right engine 33 is connected with the input shaft 35a of the right side power transmitting deice 35 that disposes in general horizontal direction.In right side power transmitting deice 35, input shaft 35a is by clutch 35d, by first 35e of bevel gear portion, with the upper end portion binding of the passing shaft 35b that disposes in the approximate vertical direction, the underpart of passing shaft 35b and cardan shaft 35c link by second 35f of bevel gear portion.
The cardan shaft 35c of right side power transmitting deice 35 constitutes, and is connected with the live axle 37a of right side propeller cavitation 37, has right side propeller cavitation 37 at the axle head of cardan shaft 35c.Like this, the driving of right engine 33 output then, by clutch 35d, passing shaft 35b and cardan shaft 35c, is passed to the live axle 37a of right side propeller cavitation 37 from the input shaft 35a that bent axle 33a is passed to right side power transmitting deice 35.The non-binding of binding of clutch 35d conversion input shaft 35a and passing shaft 35b, have simultaneously with the rotation of input shaft 35a when passing shaft 35b transmits, change the function of its sense of rotation.
In addition, in the upper end portion of right side power transmitting deice 35 dextral motor 311 is being set.The output shaft 311a of this dextral motor 311 is connected with passing shaft 35b.
The generating of above-mentioned right side for example is constituted as high frequency generator with machine 39, at the carry-out part of this generating with machine 39, is connecting right side relay (electromagnetism shutter) 331, right side rectification machine 332, right side DC/DC changer 333 successively.In addition,, be transformed to interchange, can be used as alternating electromotive force (AC electric power) and in ship, supply with by inverter 334 by generating electricity with the electric power of machine 39 of right side rectification machine 332 rectification smoothings from the right side.
Like this, above-mentioned left side and right side DC/DC changer 323,333 are connected with storage battery 313, and this storage battery 313 is connected with above-mentioned left side and dextral motor 310,311 by the controller 314 as control member.Using the alternating electromotive force of machine 38,39 generatings by left side and 322, the 332 rectification smoothings of right side rectification machine by above-mentioned left side and right side generating, after being transformed to direct current, the voltage for stipulating by left side and right side DC/DC changer 323,333 transformations is to storage battery 313 chargings.Drive generating that the generating of this left side and right side carries out with machine 38,39 and to the charging of storage battery 313, on the left of mainly being to use and the part of the output of right engine 32,33 carry out.In addition, whether the open and close controlling that left side and right side relay 321,331 can be undertaken by controller 314 to whether left side and the right side generating output with machine 38,39 is supplied in the ship, still carries out changing to the charging of storage battery 313.
Above-mentioned left side and dextral motor 310,311 are charged to the electric drive of storage battery 313, and the driving of this each motor 310,311 is by controller 314 controls.
Like this, as characteristic of the present invention, also as shown in figure 12, on the passenger cabin 3115 of spitkit 31, single governor lever 316 is being set, and this governor lever 316 is adjusted, and makes the output of left side and right engine 32,33, that is, the rotating amount of cardan shaft 34c, the 35c of left side and right side power transmitting deice 34,35 is synchronous.This governor lever 316 as shown in figure 13, for example being constituted as from the P1 position to the P2 position can the operating stem angle, the data of this operated bar angle are imported into the controller 314 that is connected with this governor lever 316.Like this, in controller 314, at the target revolution of each motor 32,33 of the bar angle of governor lever 316 as shown in figure 14, by map setting.
In addition, the side of above-mentioned controller 314 in above-mentioned left side and right engine motor, when for example the output of Zuo Ce motor 32 reduces (for example being reduced to 1500rpm from 2000rpm), carry out the rotating amount of the cardan shaft 34c of the lefthand engine 32 that reduces with respect to this output, make the rotating amount of cardan shaft 35c of remaining the opposing party's right engine 33 be reduced to the control of synchronous rotating amount.Have again, the output of the above-mentioned lefthand engine 32 that above-mentioned controller 314 reduces in output or further reduce (for example being reduced to 500rpm) or stop from 1500rpm, in the time of can not obtaining propelling force, change control, releasing is with respect to the rotating amount of the cardan shaft 34c of this lefthand engine 32, make the synchronous control of rotating amount of the cardan shaft 35c of remaining right engine 33,, only adjust the rotating amount of the cardan shaft 35c of remaining right engine 33 by governor lever 316.
Therefore, in the embodiment 5 of the invention described above, because in the left side and right engine 32, the motor of a side in 33, when for example lefthand engine 32 outputs reduce, make the rotating amount of cardan shaft 35c of remaining the opposing party's right engine 33 be reduced to the control of the synchronous rotating amount of the rotating amount of cardan shaft 34c of the lefthand engine 32 that reduces with this output, even so each motor 32, the lefthand engine 32 of a side in 33 reduces output because of the fuel ejection failure that is caused by Fuelinjection nozzle etc., the rotating amount of cardan shaft 34c reduces, and the rotating amount of the cardan shaft 35c of remaining the opposing party's normal right engine 33 between also can not produce rotation poor, single governor lever 316 be can pass through, left side and right engine 32 sought, 33 synchronously.
Have again, because the output of a side's who reduces in output lefthand engine 32 or further reduce or stop, in the time of can not obtaining propelling force, releasing is with respect to the rotating amount of the cardan shaft 34c of this lefthand engine 32, the control that the rotating amount of cardan shaft 35c of remaining the opposing party's motor 33 is reduced synchronously, by governor lever 316, only adjust the rotating amount of cardan shaft 35c of remaining the opposing party's right engine 33, so can avoid certainly since output reduce or stop and can not obtaining the lefthand engine 32 of propelling force and normal right engine 33 insignificant synchronously, the output of the normal right engine 33 of the remaining the opposing party under the state that undeniable output significantly reduces can be guaranteed, left side and right engine 32 can be kept, 33 performance.
In addition, the present invention is not limited only to the foregoing description 5, also comprises other various variation.For example, in the foregoing description 5, the situation that two left sides and right engine 32,33 are equipped on the spitkit 31 is set forth, also can be applied in the boats and ships of having equipped the motor more than 3 certainly.In this case, by single governor lever, adjust the rotating amount of the cardan shaft of the motor more than 3 synchronously, when at least one the motor output in each motor reduces, pass through controller, carry out the rotating amount of the cardan shaft of the motor that reduces with respect to this output, make remaining other the rotating amount of cardan shaft of motor be reduced to the control of synchronous rotating amount.
In addition, in the foregoing description 5, left side and right side power transmitting deice 34,35 prolong to the below of each motor 32,33 significantly, constitute the navigation driver that directly propeller cavitation 36,37 is installed on each power transmitting deice 34,35, also can constitute rearward end, the marine gear of the screw shaft of propeller cavitation is installed at each power transmitting deice.
Embodiment 6
Then, with reference to the accompanying drawings, embodiments of the invention 6 are described.
Figure 15 is the oil return line figure that the deceleration peculiar to vessel of relevant embodiments of the invention 6 reverses machine.
In Figure 15, be set up in parallel forward clutch 411 and back clutch 412, by operation forward-reverse changing valve 413, the supply destination of hydraulic oil can be transformed into any one of forward clutch 411, back clutch 412 or neutrality.
In hydraulic piston 42, alternatively dispose friction plate 4141 and steel plate 4151, friction plate 4141 links to each other with inboard gear 414 (small gear), and steel plate 4151 links to each other with the outboard gears 415 of rotation always.By pushing them with hydraulic piston 42, outboard gears 415 and the rotation of inboard gear 414 one make gearwheel 416 rotations of meshing with inboard gear 414, and power is delivered to propeller cavitation 418 from gearwheel 416 by output shaft 417.By the pushing force (clutch hydraulic pressure) that increases and decreases this hydraulic piston 42, friction plate 4141 and steel plate 4151 are skidded, that is, and can be half-clutch.Electronics whirligig 43 controls that the clutch hydraulic pressure of this hydraulic piston 42 is surrounded by double dot dash line among Figure 15.
By low speed valve 431 and forward-reverse changing valve 413, supply with hydraulic oil to electronics whirligig 43, the hydraulic piston 42 of pushing forward clutch 422 or back clutch 412.Pressure by the hydraulic pressure of proportional electromagnetic valve 432 and spring balancing and control is imported into low speed valve 431.
Expression will directly link the state of solenoid valve 433 to direct link direction conversion among Figure 15, if under this state, with forward-reverse changing valve 413 advanced position or going-back position conversion, then fully push hydraulic piston 42 by high clutch hydraulic pressure, power gear 414 transmission to the inside fully from outboard gears 415, in this case, can not occur in skidding of forward clutch 411 or back clutch 412.In addition, if will directly link solenoid valve 433 changes round about, then hydraulic oil passing ratio solenoid valve 432 is transfused to low speed valve 431, can regulate the hydraulic pressure of sending from low speed valve 431 by this proportional electromagnetic valve 432.Like this,, regulate the hydraulic pressure of sending from low speed valve 431, can control the wedge pressure in forward clutch 411 and the back clutch 412 by control ratio solenoid valve 432.In addition, among Figure 15, the 441st, oil screen, the 442nd, oil pump, the 443rd, safety valve, the 444th, clutch is pressed and is adjusted valve.
As shown in figure 16, the driving force of diesel engine E is delivered to propeller cavitation 418 by the clutch mechanism 410 that is made of forward-reverse clutch 411,412.On this diesel engine E, setting up the engine rotation sensor Ea of the actual revolution of detection of engine, on clutch mechanism 410, set up and detect this clutch mechanism 410 and be switched to which clutch engagement signal detecting sensor 410a in the neutral condition that state that forward clutch 411 connects, state that back clutch 412 connects or forward-reverse clutch 411,412 all not have connection, on propeller cavitation 418, setting up the propeller revolution sensor 418a that detects propeller revolution.
Testing signal from this engine rotation sensor Ea, clutch engagement signal detecting sensor 410a and propeller revolution sensor 418a is imported into controller 45, output from this controller 45 is imported into proportional electromagnetic valve 432 and constitutes the final controlling element of the wedge pressure of these proportional electromagnetic valve 432 conduct control forward-reverse clutches 411,412.
In addition, controller 45 carries out adjusting the control of the boost compensator of fuel injection amount based on the pressure that detects the pressurized air of supplying with to diesel engine E (the auxiliary pressure).Being somebody's turn to do the fuel injection amount to diesel engine E based on boost compensator, is that diesel engine E is applied load, and actual revolution descends, and auxiliary pressure drop is suppressed when low.
Like this, as characteristic of the present invention,, the flow process of the control that the controller 45 when boats and ships when making ahead running bring to is carried out is described according to the flow chart of Figure 17.
In the step ST1 of the flow process of Figure 17, boats and ships when making ahead running are judged as when bringing to be implemented forward-reverse changing valve 413 is transformed into going-back position from progressive position, the crash back of the hydraulic piston 42 of pushing back clutch 412, and, be judged to be actual revolution minimizing from the diesel engine E of engine rotation sensor Ea, and when the actual ratio of revolutions target revolution of this diesel engine E hangs down, by step ST2, carry out by the control of carrying out with auxiliary releasing of pressing corresponding fuel injection amount adjustment of avoiding motor to stop, avoid and inhibition that the reduction of the actual revolution of the diesel engine E when implementing crash back is accompanied fuel injection amount based on boost compensator.
Then, at step ST3, as shown in figure 18, the actual revolution slippage of change diesel engine E of constant when strengthening, so that prevent that slippage with the actual revolution of diesel engine E has the reinforcement that is closely connected and handles the motor that is caused and stop, the slippage of the actual revolution of the diesel engine E when reducing to implement crash back suppresses the inhibition degree to fuel injection amount.
Then, at step ST4, avoid on the basis that motor stops to control at above-mentioned two, pressurization control is pressed in the injection that fuel is sprayed press supercharging.Specifically, being conversion in rail altogether, the track of the burner oil of pressure accumulation is pressed collection of illustrative plates, and the pressure of the burner oil in the pressure boosting common rail (fuel sprays and presses) is so that supply with from sparger (not shown go out) at diesel engine E.At this moment, shown in Figure 19 (a), the supercharging that can spray press by fuel suppresses the generation along with the flue dust (black smoke) that increases because of the increment of avoiding the fuel injection amount that control caused that motor stops effectively.
After this, at step ST5, press in above-mentioned injection on the basis of pressurization control, the injection timing that the fuel injection timing is postponed postpones control.Specifically, be convert fuel injection timing collection of illustrative plates, postpone the fuel injection timing.At this moment, shown in Figure 19 (b), can suppress the combustion noise that increases along with because of the supercharging of spraying the pressure fuel that pressurization control caused injection pressure effectively by the delay of fuel injection timing.
Then,, whether still in force to judge crash back, at crash back still in force, under the situation for YES, turn back to above-mentioned steps ST2 at step ST6.On the other hand, be disengaged under the situation into NO,, remove the control that is judged to be when implementing crash back, return to the common control of implementing before the crash back at step ST7 at the crash back that is judged to be of above-mentioned steps ST6.That is, make when implementing crash back based on boost compensator with auxiliary releasing of pressing corresponding fuel injection amount adjustment and based on the reinforcement that the slippage of the actual revolution that makes diesel engine E reduces handle that pressurization control is pressed in the injection of avoiding motor to stop to control, make fuel to spray pressing supercharging that is caused, injection timing that the fuel injection timing is postponed postpones control and returns to the common control of implementing before the crash back.
Like this, in the above-described embodiment, because in implementing crash back, and the actual revolution of diesel engine E reduces, and when should actual ratio of revolutions target revolution low, carry out the releasing adjusted with based on the fuel injection amount of boost compensator, and the control of avoiding motor to stop that combination caused handled of the reinforcement that reduces based on the actual revolution slippage that makes diesel engine E, even so when implementing crash back, forward-reverse changing valve 413 is transformed into going-back position from progressive position, E applies load to diesel engine, actual revolution descends, if avoid motor to stop control by releasing with the corresponding fuel injection amount adjustment of auxiliary pressure based on boost compensator, the reduction of the actual revolution of the diesel engine E when just not existing along with the enforcement crash back, the repressed situation of fuel injection amount.In addition, if avoiding on the basis that motor stops to control based on the releasing of this boost compensator, the change of constant avoided motor to stop control when the reinforcement that increases to purpose by the control reaction velocity with diesel engine E was handled, the slippage of the actual revolution of the diesel engine E when then reducing to implement crash back also can suppress the inhibition degree of fuel injection amount.In view of the above, by above-mentioned two combinations of avoiding motor to stop to control, can be when implementing crash back, one side is avoided stopping because of the motor that control caused of boost compensator, and one side can make boats and ships bring to rapidly.
In addition, because avoid on the basis that motor stops to control above-mentioned, pressurization control is pressed in the injection that makes fuel spray the pressure supercharging, so the track by conversion burner oil of pressure accumulation in being total to rail is pressed collection of illustrative plates, the pressure of the burner oil in the pressure boosting common rail (fuel sprays and presses), so that E supplies with from sparger at diesel engine, just can suppress generation effectively along with the flue dust (black smoke) that increases because of the increment of avoiding motor to stop to control the fuel injection amount that is caused.
Then, because press in above-mentioned injection on the basis of pressurization control, the injection timing that the fuel injection timing is postponed postpones control, so can suppress the combustion noise that increases along with because of the supercharging of spraying the pressure fuel that pressurization control caused injection pressure effectively by the delay of fuel injection timing.
Have again, because be judged to be crash back when being disengaged, releasing is judged to be the control when implementing crash back, return to and implement the preceding common control of crash back, so can be when being judged to be the crash back releasing, make the control of avoiding motor to stop when implementing crash back, spray the common control of pressing before pressurization control and injection timing delay control return to the enforcement crash back, the flue dust (black smoke) that the increment of avoiding motor to stop to control the fuel injection amount that is caused when implementing crash back is increased, with along with the combustion noise that increases because of the supercharging of spray pressing fuel that pressurization control caused to spray to press etc., be reduced to original state.
In addition, the present invention is not limited only to the foregoing description 6, also comprises other various variation.For example, in the foregoing description 6, in implementing crash back, and the actual revolution of diesel engine E reduces, and when should actual ratio of revolutions target revolution low, carrying out will be with the releasing of adjusting based on the fuel injection amount of boost compensator, and the control of avoiding motor to stop of the change combination of constant when handling with the reinforcement that the control reaction velocity of diesel engine E increases to purpose, but, also can be as shown in figure 20, avoid on the basis that motor stops to control at above-mentioned two, or change actual revolution slippage at the diesel engine E of the maximum injection quantity of fuel, the change fuel injection amount is adjusted collection of illustrative plates, make based on boost compensator and the auxiliary control of avoiding motor to stop of pressing corresponding fuel injection amount increment, or only carry out the control that each avoids motor to stop respectively individually.
In addition, in the foregoing description 6, though be forward-reverse changing valve 413 to be transformed into going-back position from progressive position being judged to be, implementing in the crash back, and be judged to be actual revolution minimizing from the diesel engine E of engine rotation sensor Ea, and when the actual ratio of revolutions target revolution of this diesel engine E hangs down, avoid motor to stop control, but, also can be judged to be boats and ships when making ahead running when stopping, forward-reverse changing valve 413 is transformed into going-back position from progressive position, implement in the crash back, and the actual revolution of diesel engine reduces, and fuel injection amount is owing to press corresponding fuel injection amount adjustment based on boost compensator with auxiliary, when reaching limiting quantity, the control of avoiding motor to stop.
In addition, the present invention does not break away from its spirit or main feature, can implement with other various forms.Therefore, the foregoing description is nothing but simple the giving an example on all points, rather than determinate explanation.Scope of the present invention is the scope shown in the claim, to the specification text without any restriction.Have again, belong to claim scope impartial scope distortion or the change all within the scope of the invention.
In addition, this application require based on the spy in Japan's application on July 12nd, 2004 be willing to 2004-204353 number, special be willing to 2004-204357 number, specially be willing to 2004-204358 number, special preference of being willing to 2004-204359 number.Owing to here be mentioned, so this whole content is included into the application.
The possibility of utilizing on the industry
Above-mentioned the present invention is not limited only to boats and ships usefulness, but can be applied to all engines, for example, also can be applied to the engine of other purposes of using etc. for vehicle.
Claims (4)
1. the fuel injection amount controlling method of a motor is the emitted dose of control by the fuel of fuel injection valves inject, it is characterized in that,
Judge the acceleration mode of motor, be judged to be motor when entering into acceleration mode, in the boost compensator function valid period before the engine speed that enters this acceleration mode arrives the regulation rotating speed, carry out fuel injection amount is adjusted the control of collection of illustrative plates conversion of collection of illustrative plates characteristic when quickening of collection of illustrative plates characteristic when stablizing, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle
When being switched to this acceleration under the situation of the collection of illustrative plates of characteristic, with the first half of above-mentioned boost compensator function valid period just auxiliary pressure sensor just often consistent with the characteristic that auxiliary maximum injection quantity of pressing the fuel in the characteristic that is converted is set minimumly correspondingly interimly.
2. the fuel injection amount controlling method of a motor is the emitted dose of control by the fuel of fuel injection valves inject, it is characterized in that,
Judge the acceleration mode of motor, be judged to be motor when entering into acceleration mode, in the boost compensator function valid period before the engine speed that enters this acceleration mode arrives the regulation rotating speed, carry out and will change to the control just often bigger than auxiliary pressure sensor with respect to the reinforcement constant of the fuel injection amount of time for acceleration, restriction is from the maximum injection quantity of the fuel of Fuelinjection nozzle.
3. an engine operating status method of discrimination is characterized in that, uses the fuel injection amount controlling method of claim 1 or 2 described motors,
During greater than the value of regulation, be judged to be the acceleration mode of motor at the variable quantity of throttle opening.
4. an engine operating status method of discrimination is characterized in that, uses the fuel injection amount controlling method of claim 1 or 2 described motors,
During greater than the value of regulation, be judged to be the acceleration mode of motor at the variable quantity of rail pressure, fuel injection amount setting value.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004204353A JP4484604B2 (en) | 2004-07-12 | 2004-07-12 | Engine fuel injection amount control method and engine operating state determination method using the same |
| JP204358/2004 | 2004-07-12 | ||
| JP204353/2004 | 2004-07-12 | ||
| JP2004204359A JP4395021B2 (en) | 2004-07-12 | 2004-07-12 | Multi-engine propulsion device |
| JP2004204357A JP4532190B2 (en) | 2004-07-12 | 2004-07-12 | Fuel injection control method at the time of a crash astern in an engine with a marine reduction reverse rotation machine |
| JP204357/2004 | 2004-07-12 | ||
| JP2004204358A JP4398315B2 (en) | 2004-07-12 | 2004-07-12 | Fuel control method for multi-cylinder engine |
| JP204359/2004 | 2004-07-12 | ||
| PCT/JP2005/011619 WO2006006375A1 (en) | 2004-07-12 | 2005-06-24 | Fuel control method for multi-cylinder engine, fuel injection amount control method for engine and engine operating state discrimination method using the said method, propelling device for multiple engines, and fuel injection control method at crush astern in engine with speed reducing and reversing machine for marine use |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100989668A Division CN101294518B (en) | 2004-07-12 | 2005-06-24 | Propulsive device for a plurality of engines |
| CN2008100989672A Division CN101307730B (en) | 2004-07-12 | 2005-06-24 | Fuel injection control method of engine with marine deceleration reverser when in all-speed reversing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1934343A CN1934343A (en) | 2007-03-21 |
| CN1934343B true CN1934343B (en) | 2011-08-17 |
Family
ID=35895776
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100989668A Expired - Fee Related CN101294518B (en) | 2004-07-12 | 2005-06-24 | Propulsive device for a plurality of engines |
| CN2005800096075A Expired - Fee Related CN1934343B (en) | 2004-07-12 | 2005-06-24 | Fuel injection amount control method for engine and engine operating state discrimination method using the said method |
| CN2008100989672A Expired - Fee Related CN101307730B (en) | 2004-07-12 | 2005-06-24 | Fuel injection control method of engine with marine deceleration reverser when in all-speed reversing |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100989668A Expired - Fee Related CN101294518B (en) | 2004-07-12 | 2005-06-24 | Propulsive device for a plurality of engines |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100989672A Expired - Fee Related CN101307730B (en) | 2004-07-12 | 2005-06-24 | Fuel injection control method of engine with marine deceleration reverser when in all-speed reversing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4484604B2 (en) |
| CN (3) | CN101294518B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010039874B4 (en) * | 2010-08-27 | 2015-10-08 | Continental Automotive Gmbh | Method and apparatus for operating a high-pressure fuel-injection-fuel injection system for an internal combustion engine |
| US9255543B2 (en) * | 2012-12-14 | 2016-02-09 | Hyundai Motor Company | Fuel injection amount compensating method |
| KR102323409B1 (en) * | 2017-09-18 | 2021-11-05 | 현대자동차주식회사 | Method and system for diagnosing boost pressure sensor |
| JP2019157845A (en) * | 2018-03-16 | 2019-09-19 | 株式会社ディーゼルユナイテッド | Marine engine |
| CN114352417B (en) * | 2022-01-24 | 2023-07-18 | 潍柴动力股份有限公司 | Marine engine control method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10131792A (en) * | 1996-10-31 | 1998-05-19 | Yamaha Motor Co Ltd | Lean combustion control method for internal combustion engine |
| JP3931456B2 (en) * | 1998-12-16 | 2007-06-13 | マツダ株式会社 | Exhaust gas recirculation control device for in-cylinder injection engine |
| JP4235335B2 (en) * | 2000-02-14 | 2009-03-11 | 日本車輌製造株式会社 | Diesel engine with turbocharger |
| CN2409138Y (en) * | 2000-03-28 | 2000-12-06 | 卢长才 | Synchronous follow-up remote-controller for host machine of shipping |
| JP2002276416A (en) * | 2001-03-22 | 2002-09-25 | Toyota Motor Corp | Operating method for uniform periodic output torque of multi-cylinder internal combustion engine |
-
2004
- 2004-07-12 JP JP2004204353A patent/JP4484604B2/en not_active Expired - Fee Related
-
2005
- 2005-06-24 CN CN2008100989668A patent/CN101294518B/en not_active Expired - Fee Related
- 2005-06-24 CN CN2005800096075A patent/CN1934343B/en not_active Expired - Fee Related
- 2005-06-24 CN CN2008100989672A patent/CN101307730B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-179409A 2000.06.27 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101307730B (en) | 2011-07-27 |
| CN1934343A (en) | 2007-03-21 |
| JP2006029095A (en) | 2006-02-02 |
| CN101294518B (en) | 2011-01-12 |
| CN101294518A (en) | 2008-10-29 |
| JP4484604B2 (en) | 2010-06-16 |
| CN101307730A (en) | 2008-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1767763A1 (en) | Fuel control method for multi-cylinder engine, fuel injection amount control method for engine and engine operating state discrimination method using the said method, propelling device for multiple engines, and fuel injection control method at crush astern in engine with speed reducing and reversing | |
| CN103003548B (en) | Vehicle pneumatic booster system operating method and apparatus | |
| CN1934343B (en) | Fuel injection amount control method for engine and engine operating state discrimination method using the said method | |
| CN103201485B (en) | For the method and apparatus of the operation of the fuel oil high pressure reservoir ejecting system of internal-combustion engine | |
| MX2010009332A (en) | Method and device for controlling an output torque of an automated transmission coupled to an internal combustion engine. | |
| CN103249936A (en) | Fuel supply apparatus for internal combustion engine | |
| WO2012115867A1 (en) | Method of operating a vehicle equipped with a pneumatic booster system | |
| EP2678539A1 (en) | Method of operating a vehicle equipped with a pneumatic booster system | |
| WO2012115865A1 (en) | Method of operating a vehicle equipped with a pneumatic booster system | |
| US8079345B2 (en) | High pressure fuel supply control system for internal combustion engine | |
| WO2011146504A1 (en) | Vehicle pneumatic booster system operating method and apparatus | |
| WO2011146496A1 (en) | Vehicle pneumatic booster system operating method and apparatus | |
| CN100396900C (en) | Fuel pump control system for cylinder cut-off internal combustion engine | |
| WO2011146500A1 (en) | Vehicle pneumatic booster system operating method and apparatus | |
| US7107966B2 (en) | Fuel injection system | |
| EP2678540A1 (en) | Method of operating a vehicle equipped with a pneumatic booster system | |
| US6508232B2 (en) | Fuel injection system for engine | |
| JPH11210534A (en) | Self ignition type air compression internal combustion engine driving method and fuel injection system thereof | |
| WO2003033902A1 (en) | Plunger pump driving method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20180624 |