CN107448289B - Decision maker - Google Patents
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- CN107448289B CN107448289B CN201710388826.3A CN201710388826A CN107448289B CN 107448289 B CN107448289 B CN 107448289B CN 201710388826 A CN201710388826 A CN 201710388826A CN 107448289 B CN107448289 B CN 107448289B
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 77
- 238000012360 testing method Methods 0.000 claims abstract description 23
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- 238000004364 calculation method Methods 0.000 claims description 18
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- 238000001514 detection method Methods 0.000 description 6
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The present invention provides a kind of decision maker, and it is an object of the present invention to provide a kind of decision maker of the direction of rotation of the internal combustion engine for the ship for determining to have multiple cylinders using existing equipment.The application discloses a kind of decision maker of the direction of rotation of the internal combustion engine of ship for determining to have multiple cylinders.Decision maker has: test section, detects the variation of the periodic state of the multiple cylinder, and export status information related with the state；And direction determining portion, using the status information and by by the multiple cylinder become certain stationary state sequence it is associated with the direction of rotation of the internal combustion engine in a manner of preset corresponding informance, to determine the direction of rotation.
Description
Technical field
The present invention relates to a kind of decision makers of the direction of rotation of the internal combustion engine of ship for determining to have multiple cylinders.
Background technique
The crankshaft of the internal combustion engine of ship bidirectionally rotates.According to the control letter exported from the control device of control internal combustion engine
Number indicate the direction of rotation of crankshaft.However, the also actual direction of rotation of crankshaft and the side specified according to control signal sometimes
To difference.Thus, the multiple proximity sensors for being installed on the encoder of crankshaft or being configured near the flywheel for being installed on crankshaft
It is also used in the actual direction of rotation (referring to patent document 1) of detection crankshaft sometimes.
Patent document 1: Japanese Unexamined Patent Publication 2004-360489 bulletin
Summary of the invention
Problems to be solved by the invention
If encoder, proximity sensor break down, information related with the direction of rotation of crankshaft can lose.At this
In the case of, it can not suitably be utilized the various controls of information related with the direction of rotation of crankshaft (for example, for determining combustion
Expect the control of the injection timing sprayed to internal combustion engine).Thus, it is desirable that one kind can generate letter related with the direction of rotation of crankshaft
The equipment of breath, to replace encoder, proximity sensor.
If replacing encoder using the sensor for the addition for generating information related with the direction of rotation of crankshaft, approaching
Sensor can make the control system enlargement of ship and complicate.
The object of the present invention is to provide a kind of to be determined using existing equipment in the ship with multiple cylinders
The decision maker of the direction of rotation of combustion engine.
The solution to the problem
Decision maker involved in one aspect of the present invention can determine the internal combustion engine of the ship with multiple cylinders
Direction of rotation.Decision maker has: test section, detects the variation of the periodic state of the multiple cylinder, and exports
Status information related with the state；And direction determining portion, using the status information and with by the multiple cylinder
As the associated preset corresponding informance of mode of the sequence of certain stationary state and the direction of rotation of the internal combustion engine,
To determine the direction of rotation.
The equipment that the internal combustion engine of many ships has had the variation of the periodic state for detecting multiple cylinders.
It, can be using existing equipment as output state related with the variation of periodic state of multiple cylinders according to above structure
The test section of information utilizes.Direction determining portion use state information and with by multiple cylinders become certain stationary state sequence with
The preset corresponding informance of the associated mode in the direction of rotation of internal combustion engine, to determine direction of rotation, therefore being capable of high-precision
The direction of rotation of ground judgement internal combustion engine.
About above structure, the multiple cylinder also may include multiple movable positions, and the multiple movable position is being advised
It moves back and forth in fixed stroke section.The test section also may include multiple position detectors, the multiple position inspection
It surveys device and detects the multiple movable position for reaching the base position set in the stroke section respectively.Sentence in the direction
The sequence of the base position can also be reached according to the multiple movable position to determine the direction of rotation by determining portion.
According to above structure, multiple position detectors detect reach the base position set in stroke section respectively
Multiple movable positions, therefore test section can export the related status information of the variation of periodic state with multiple cylinders.
Direction determining portion reaches the sequence of base position according to multiple movable positions to determine direction of rotation, therefore can accurately sentence
Determine the direction of rotation of internal combustion engine.
About above structure, decision maker can also be also equipped with calculation part, and the calculation part is according to the multiple position detection
A movable position in the multiple movable position detected by a position detector in device reaches the benchmark position
The time interval set, to calculate the revolving speed of the internal combustion engine.
According to above structure, calculation part is multiple according to detected by a position detector in multiple position detectors
A movable position in movable position reaches the time interval of base position to calculate the revolving speed of internal combustion engine, therefore, it is determined that device
It can not only determine the direction of rotation of internal combustion engine, additionally it is possible to determine the revolving speed of internal combustion engine.
About above structure, it is also possible to the multiple respective lower dead center in movable position and is set to the benchmark position
It sets.
According to above structure, multiple movable respective lower dead centers in position are set to base position, therefore multiple positions are examined
Survey the position that device can be configured at the heat for being not easily susceptible to generate in cylinder.
About above structure, the test section also may include multiple pressure detectors, the multiple pressure detector point
The internal pressure of the multiple cylinder is not detected.The direction determining portion can also reach defined reference pressure according to the internal pressure
Sequence determines the direction of rotation.
According to above structure, direction determining portion reaches the sequence of defined reference pressure according to internal pressure to determine rotation side
To, therefore can accurately determine the direction of rotation of internal combustion engine.
About above structure, decision maker can also have calculation part, and the calculation part is according to by the multiple pressure detecting
The internal pressure that a pressure detector in device detects reaches the time interval of the reference pressure, to calculate the internal combustion
The revolving speed of machine.
According to above structure, calculation part is according to the internal pressure detected by a pressure detector in multiple pressure detectors
Reach the time interval of reference pressure to calculate the revolving speed of internal combustion engine, therefore, it is determined that device can not only determine the rotation of internal combustion engine
Direction, additionally it is possible to determine the revolving speed of internal combustion engine.
About above structure, decision maker can also have: action checking portion is determined the direction determining portion
The direction of rotation with according to for control the multiple cylinder movement control signal specify direction of rotation compared
Compared with, come determine the direction of rotation that the direction determining portion is determined whether with according to the control signal it is specified described in
Direction of rotation is consistent；And warning portion, if to be determined as that the direction determining portion is determined described in the action checking portion
Direction of rotation is not consistent with according to the specified direction of rotation of the control signal, then alert as defined in the warning portion output
It accuses.
According to above structure, if action checking portion be determined as direction of rotation that direction determining portion is determined not with basis
It is consistent to control the specified direction of rotation of signal, then warning as defined in the output of warning portion, therefore can promote for the suitable of internal combustion engine
When control.
The effect of invention
Above-mentioned decision maker can determine the rotation of the internal combustion engine of the ship with multiple cylinders using existing equipment
Turn direction.
Detailed description of the invention
Fig. 1 is the block diagram of the summary of the decision maker of first embodiment.
Fig. 2 is the block diagram of the summary of the decision maker of second embodiment.
Fig. 3 is the flow chart for showing the summary of data processing performed by the reading unit of decision maker shown in Fig. 2.
Fig. 4 is the process for showing the summary of determination processing performed by the second determination unit of decision maker shown in Fig. 2
Figure.
Fig. 5 is the block diagram of the summary of the decision maker of third embodiment.
Fig. 6 is the block diagram of the summary of the decision maker of the 4th embodiment.
Fig. 7 is the block diagram of the summary of the decision maker of the 5th embodiment.
Fig. 8 is the process for showing the summary of determination processing performed by the second determination unit of decision maker shown in Fig. 7
Figure.
Fig. 9 is the block diagram of the summary of the decision maker of sixth embodiment.
Figure 10 is the flow chart (the 7th embodiment) for the summary of acquisition methods for showing corresponding informance.
Description of symbols
100: decision maker；100A~100E: decision maker；110,110A, 110B, 110D: test section；111A,112A,
113A: position detector；111B, 112B, 113B, 114: pressure detector；120,120A, 120B, 120C, 120D: sequence is raw
At portion；130,130A, 130D: direction determining portion；140,140D: calculation part；150: action checking portion；160: warning portion；CL1:
First cylinder；CL2: the second cylinder；CL3: third cylinder；ENG: internal combustion engine；HD1~HD3: head.
Specific embodiment
<first embodiment>
The present inventors develops a kind of technology of direction of rotation that internal combustion engine is determined using existing equipment.It is real first
It applies in mode, to for determining that the illustrative decision technology of direction of rotation is illustrated.
Fig. 1 is the block diagram of the summary of the decision maker 100 of first embodiment.Illustrate decision maker referring to Fig.1
100。
Fig. 1 shows the internal combustion engine ENG of ship.Internal combustion engine ENG has the first cylinder CL1, the second cylinder CL2 and third
Cylinder CL3.In the present embodiment, multiple cylinders are illustrated with the first cylinder CL1, the second cylinder CL2 and third cylinder CL3.
The principle of present embodiment can also be applied to the internal combustion engine with more than three cylinder.
Decision maker 100 has test section 110, is sequentially generated portion 120 and direction determining portion 130.Test section 110 includes
First sensor 111, second sensor 112 and 3rd sensor 113.First sensor 111 detects the week of the first cylinder CL1
The variation of the state of phase property, and generate the status information for indicating the state of the first cylinder CL1.Indicate the state of the first cylinder CL1
Status information exported from first sensor 111 to the portion that is sequentially generated 120.Second sensor 112 detects the week of the second cylinder CL2
The variation of the state of phase property, and generate the status information for indicating the state of the second cylinder CL2.Indicate the state of the second cylinder CL2
Status information exported from second sensor 112 to the portion that is sequentially generated 120.The week of the detection of 3rd sensor 113 third cylinder CL3
The variation of the state of phase property, and generate the status information for indicating the state of third cylinder CL3.Indicate the state of third cylinder CL3
Status information exported from 3rd sensor 113 to the portion that is sequentially generated 120.
If be already installed in internal combustion engine ENG for detecting the first cylinder CL1, the second cylinder CL2 and third gas
The position detector of the position of the respective movable position (such as cylinder head (not shown), crosshead (not shown)) of cylinder CL3 (is not schemed
Show), then first sensor 111, second sensor 112 and 3rd sensor 113 can be position detector respectively.If
It is already installed in internal combustion engine ENG for detecting the first cylinder CL1, the second cylinder CL2 and the respective internal pressure of third cylinder CL3
Pressure detector (not shown), then first sensor 111, second sensor 112 and 3rd sensor 113 can be respectively
Pressure detector.The principle of present embodiment be not limited to be, respectively, used as first sensor 111, second sensor 112 and
The specific detecting element of 3rd sensor 113.
As described above, be sequentially generated portion 120 from test section 110 receive indicate the first cylinder CL1, the second cylinder CL2 and
The status information of the respective state of third cylinder CL3.Portion 120 is sequentially generated according to status information to the first cylinder CL1, the second gas
Cylinder CL2 and third cylinder CL3 are ranked up.It can be, if the status information from first sensor 111 indicates internal pressure
Peak value, the status information from second sensor 112 indicates peak value, the shape finally from 3rd sensor 113 of internal pressure later
State information indicates the peak value of internal pressure, then the sequence that portion 120 marks " No. 1 " to the first cylinder CL1 is sequentially generated, to the second cylinder
CL2 marks the sequence of " No. 2 ", to the sequence of third cylinder CL3 label " No. 3 ".If be also possible to from first sensor
111 status information indicates that the peak value of internal pressure, the status information from 3rd sensor 113 indicates the peak value, most of internal pressure later
The peak value for indicating internal pressure from the status information of second sensor 112 later, then be sequentially generated portion 120 and mark to the first cylinder CL1
The sequence of " No. 1 ", to the sequence of third cylinder CL3 label " No. 2 ", to the sequence of the second cylinder CL2 label " No. 3 ".
It is sequentially generated portion 120 and generates the order information for indicating the sequence determined by above-mentioned sequence processing.Sequence is believed
Breath is exported from the portion that is sequentially generated 120 to direction determining portion 130.
Direction determining portion 130 is kept will use the sequence and internal combustion that the order information generated of the portion that is sequentially generated 120 indicates
The preset corresponding informance of the associated mode in the direction of rotation of machine ENG.Corresponding informance both can be used as data and be saved to
Memory component (not shown), is also possible to the algorithm for determining treatment process performed by direction determining portion 130.
It can be, if order information indicates the sequence of the first cylinder CL1, the second cylinder CL2 and third cylinder CL3, or
Person indicates the sequence of the second cylinder CL2, third cylinder CL3 and the first cylinder CL1, or indicates third cylinder CL3, the first cylinder
The sequence of CL1 and the second cylinder CL2, then direction determining portion 130 is determined as that internal combustion engine ENG is being rotated in the forward direction.It can also be with
It is if order information indicates the sequence of the first cylinder CL1, third cylinder CL3 and the second cylinder CL2, or to indicate third gas
The sequence of cylinder CL3, the second cylinder CL2 and the first cylinder CL1, or indicate the second cylinder CL2, the first cylinder CL1 and third gas
The sequence of cylinder CL3, then direction determining portion 130 is determined as that internal combustion engine ENG is being reversely rotated.
<second embodiment>
Lower dead center or top dead centre can suitably be used in the sequence for multiple cylinders.If using being able to detect that
Up to lower dead center cylinder head (or crosshead) position detector (such as proximity sensor) as test section, then close to pass
Sensor is able to detect cylinder head (or crosshead) not by the high temperature in cylinder and reaches lower dead center.If using detection cylinder
Internal pressure pressure detector (i.e. pressure sensor) as test section, then pressure detector can be by detection cylinder
The peak value of pressure reaches top dead centre to detect cylinder head (or crosshead).In this second embodiment, illustrate to utilize lower dead center
To carry out the illustrative decision maker of the sequence for multiple cylinders.
Fig. 2 is the block diagram of the summary of the decision maker 100A of second embodiment.Illustrate to determine referring to Figures 1 and 2
Device 100A.
Decision maker 100A has test section 110A, is sequentially generated portion 120A and direction determining portion 130A.Test section
110A includes three position detectors 111A, 112A, 113A.Position detector 111A and the first illustrated referring to Fig.1 sensing
Device 111 is corresponding.Position detector 112A is corresponding with illustrated second sensor 112 referring to Fig.1.Position detector 113A and ginseng
It is corresponding according to 3rd sensor 113 illustrated by Fig. 1.
Fig. 2 shows three head HD1, HD2, HD3.Head HD1 is equivalent to the cylinder of the first illustrated referring to Fig.1 cylinder CL1
Head or crosshead.Head HD2 is equivalent to the cylinder head or crosshead of the second illustrated referring to Fig.1 cylinder CL2.Head HD3 is equivalent to
The cylinder head or crosshead of illustrated third cylinder CL3 referring to Fig.1.Each head HD1, HD2, HD3 are in lower dead center and top dead centre
Between stroke section in move back and forth.In the present embodiment, multiple movable positions are illustrated with head HD1, HD2, HD3.
Position detector 111A, 112A, 113A are also possible to be configured as detector HD1, HD2, HD3 arrival lower dead center
Proximity sensor.When head HD1, HD2, HD3 are remote away from lower dead center, position detector 111A, 112A, 113A export approximately fixed
The signal of voltage level.When head HD1, HD2, HD3 are close to lower dead center, from the letter of position detector 111A, 112A, 113A output
Number voltage level decline.When head HD1, HD2, HD3 after this far from lower dead center when, the voltage level of signal increases and restores
To approximately fixed voltage level.Fig. 2 shows the variation of the voltage level of these signals with status information.
Above-mentioned voltage signal is exported from position detector 111A, 112A, 113A to portion 120A is sequentially generated.It is sequentially generated
Portion 120A includes the first determination unit 121 and storage unit 122.
First determination unit 121 receives voltage signal from position detector 111A, 112A, 113A.When from position detector
When the voltage level of the signal of 111A, 112A, 113A switchs to increase from reduction, the output of the first determination unit 121 indicates voltage signal
Generation source data.For example, it may be when the voltage level of the signal from position detector 111A switchs to increase from reduction
When, the output of the first determination unit 121 indicates the data of the value of " 1 ".It is also possible to the electricity when the signal from position detector 112A
When voltage levels switch to increase from reduction, the output of the first determination unit 121 indicates the data of the value of " 2 ".It is also possible to when from position
When the voltage level of the signal of detector 113A switchs to increase from reduction, the output of the first determination unit 121 indicates the number of the value of " 3 "
According to.
The voltage level of signal from position detector 111A, 112A, 113A means from reduction to increased variation
Head HD1, HD2, HD3 reach lower dead center.Thus, the first determination unit 121 in order to carry out sequence for multiple cylinders and by head
The lower dead center of HD1, HD2, HD3 are used as base position.Indicate that the above-mentioned data of the value of " 1 ", " 2 ", " 3 " are equivalent to referring to Fig.1
Illustrated order information.First determination unit 121 is either be designed to parse voltage signal and generated and parsed
As a result the program of corresponding output data is also possible to execute the arithmetic element (such as CPU (Central of the program
Processing Unit: central processing unit), PLD (Programmable Logic Device: programmable logic device)).
Storage unit 122 includes the first storage domain 123 and the second storage domain 124.Indicate the above-mentioned of the value of " 1 ", " 2 " or " 3 "
Data from the first determination unit 121 to first storage domain 123 export.First storage domain 123 will be received from the first determination unit 121
Data kept as the first data.
Second storage domain 124 counts first and exporting from the data of the first determination unit 121 in first storage domain 123
It is kept according to the first data before capped or update as the second data.Storage unit 122 is also possible to RAM
(Random Access Memory: random access memory) or other general memory elements.
Direction determining portion 130A includes reading unit 131 and the second determination unit 132.Reading unit 131 is read from the first storage domain 123
First data out, and the second data are read from the second storage domain 124.If the first data are updated (that is, if the first data
Value and the second data value it is inconsistent), then the first data are output to the second storage domain 124.Second storage domain 124 will be from reading
The first data that portion 131 exports out are kept as the second data.
If the first data are updated, the first data and the second data are defeated from reading unit 131 to the second determination unit 132
Out.Second determination unit 132 determines the direction of rotation of internal combustion engine referring to the first data and the second data.Such as can be, if
First data indicate that the value of " 1 ", the second data indicate the value of " 3 ", then the second determination unit 132 is determined as that internal combustion engine is carrying out just
To rotation.If being also possible to the first data indicates the value of " 1 ", the value that the second data indicate " 2 ", the second determination unit 132 is sentenced
It is set to internal combustion engine reversely rotated.If being also possible to the first data indicates that the value of " 2 ", the second data indicate " 1 "
Value, then the second determination unit 132 is determined as that internal combustion engine is being rotated in the forward direction.If being also possible to the first data indicates " 2 "
Value, the second data indicate the value of " 3 ", then the second determination unit 132 is determined as that internal combustion engine is being reversely rotated.It is also possible to
If the first data indicate the value of " 3 ", the second data and indicate the value of " 2 ", the second determination unit 132 be determined as internal combustion engine into
Row rotates in the forward direction.If being also possible to the first data indicates the value of " 3 ", the value that the second data indicate " 1 ", the second determination unit
132 are determined as that internal combustion engine is being reversely rotated.Indicate the judgement result for rotating in the forward direction or reversely rotating of internal combustion engine from the
The output of two determination units 132.Direction determining portion 130A is either being designed to carry out data reading, data write-in and being based on institute
The data of reading carry out the program of determination processing, are also possible to execute the arithmetic element (such as CPU, PLD) of the program.
Fig. 3 is the flow chart for showing the summary of data processing performed by reading unit 131.Illustrate referring to Fig. 2 and Fig. 3
Data processing performed by reading unit 131.
(step S110)
Reading unit 131 reads the first data from the first storage domain 123 and reads the second data from the second storage domain 124.It
Afterwards, step S120 is executed.
(step S120)
Reading unit 131 determines that the second data indicate whether default value.Default value is set to export with the first determination unit 121
Data represented by the different value (such as " 0 ") of value (i.e. " 1 ", " 2 ", " 3 ").If the second data indicate default value, hold
Row step S130.In other cases, step S140 is executed.
(step S130)
Reading unit 131 writes first data into the second storage domain 124.Later, step S110 is executed.
(step S140)
Reading unit 131 determines whether the first data and the second data are consistent.If the first data and the second data are inconsistent,
Then follow the steps S150.In other cases, step S110 is executed.
(step S150)
Reading unit 131 writes first data into the second storage domain 124.Later, step S160 is executed.
(step S160)
First data and the second data are output to the second determination unit 132 by reading unit 131.
Fig. 4 is the flow chart for showing the summary of determination processing performed by the second determination unit 132.Come referring to Fig. 2 and Fig. 4
Illustrate determination processing performed by the second determination unit 132.
(step S205)
Second determination unit 132 waits from reading unit 131 and exports the first data and the second data.When the second determination unit 132 connects
When receiving the first data and the second data, step S210 is executed.
(step S210)
Second determination unit 132 determines whether the value of the first data is " 1 ".If the value of the first data is " 1 ", step is executed
Rapid S215.In other cases, step S230 is executed.
(step S215)
Second determination unit 132 determines whether the value of the second data is " 3 ".If the value of the second data is " 3 ", step is executed
Rapid S220.In other cases, step S225 is executed.
(step S220)
Second determination unit 132 is determined as that internal combustion engine is being rotated in the forward direction.
(step S225)
Second determination unit 132 is determined as that internal combustion engine is being reversely rotated.
(step S230)
Second determination unit 132 determines whether the value of the first data is " 2 ".If the value of the first data is " 2 ", step is executed
Rapid S235.In other cases, step S250 is executed.
(step S235)
Second determination unit 132 determines whether the value of the second data is " 1 ".If the value of the second data is " 1 ", step is executed
Rapid S240.In other cases, step S245 is executed.
(step S240)
Second determination unit 132 is determined as that internal combustion engine is being rotated in the forward direction.
(step S245)
Second determination unit 132 is determined as that internal combustion engine is being reversely rotated.
(step S250)
Second determination unit 132 determines whether the value of the second data is " 2 ".If the value of the second data is " 2 ", step is executed
Rapid S255.In other cases, step S260 is executed.
(step S255)
Second determination unit 132 is determined as that internal combustion engine is being rotated in the forward direction.
(step S260)
Second determination unit 132 is determined as that internal combustion engine is being reversely rotated.
<third embodiment>
Lower dead center or top dead centre are used for the sequence for multiple cylinders by the decision maker of second embodiment
Benchmark.Also it can replace aforesaid way, the benchmark in addition to lower dead center and top dead centre be used for the sequence for multiple cylinders.?
In third embodiment, to the illustrative of the sequence that the benchmark in addition to lower dead center and top dead centre is used to be directed to multiple cylinders
Decision maker is illustrated.
Fig. 5 is the block diagram of the summary of the decision maker 100B of third embodiment.Illustrate to determine referring to figs. 1 to Fig. 5
Device 100B.Saying for above-mentioned embodiment is quoted to the element for being labelled with appended drawing reference identical with above-mentioned embodiment
It is bright.
Similarly to the second embodiment, decision maker 100B has direction determining portion 130A.To direction determination unit 130A
Quote the explanation of second embodiment.
Decision maker 100B is also equipped with test section 110B and is sequentially generated portion 120B.Test section 110B includes three pressure inspections
Survey device 111B, 112B, 113B.Pressure detector 111B is corresponding with illustrated first sensor 111 referring to Fig.1.Pressure detecting
Device 112B is corresponding with illustrated second sensor 112 referring to Fig.1.Pressure detector 113B and third illustrated referring to Fig.1
Sensor 113 is corresponding.
In the same manner as Fig. 1, Fig. 5 shows the first cylinder CL1, the second cylinder CL2 and third cylinder CL3.To the first cylinder
The explanation of CL1, the second cylinder CL2 and third cylinder CL3 reference first embodiment.
In the same manner as Fig. 2, Fig. 5 shows three head HD1, HD2, HD3.Correct HD1, HD2, HD3 quote second embodiment
Explanation.
Head HD1 moves back and forth in the stroke section in the first cylinder CL1 between top dead centre and lower dead center.Head
HD2 moves back and forth in the stroke section in the second cylinder CL2 between top dead centre and lower dead center.Head HD3 is in third gas
It moves back and forth in stroke section in cylinder CL3 between top dead centre and lower dead center.
Pressure detector 111B, 112B, 113B can be the first cylinder CL1 of measurement, the second cylinder CL2 and third cylinder
The pressure sensor of the internal pressure of CL3.As head HD1, HD2, HD3 are close to top dead centre, from pressure detector 111B, 112B, 113B
The voltage level of the signal of output increases.As head HD1, HD2, HD3 are close to lower dead center, from pressure detector 111B, 112B,
The voltage level of the signal of 113B output is reduced.Thus, as shown in figure 5, exported from pressure detector 111B, 112B, 113B
Voltage signal changes in sinusoidal wave shape.The voltage signal exported from pressure detector 111B, 112B, 113B is equivalent to referring to Fig.1
Illustrated status information.
Above-mentioned voltage signal is exported from pressure detector 111B, 112B, 113B to portion 120B is sequentially generated.It is real with second
Apply mode similarly, being sequentially generated portion 120B includes storage unit 122.The explanation of second embodiment is quoted to storage unit 122.
The portion 120B of being sequentially generated also includes the first determination unit 121B and three binaryzation portions 125,126,127.Binaryzation portion
125 by with when head HD1 will reach top dead centre by the comparable voltage of voltage level of the pressure detector 111B signal generated
Value be used as threshold value, binaryzation portion 126 by with when head HD2 will reach top dead centre by the pressure detector 112B signal generated
The comparable voltage value of voltage level be used as threshold value, binaryzation portion 127 will with when head HD3 will reach top dead centre by pressure detecting
The comparable voltage value of voltage level for the signal that device 113B is generated is used as threshold value, Lai Jinhang binary conversion treatment.In present embodiment
In, reference pressure is illustrated with the corresponding internal pressure of the threshold value set with binaryzation portion 125,126,127.
When the voltage of the signal exported from pressure detector 111B is more than threshold value, binaryzation portion 125 generates high voltage water
Flat signal.When the voltage of the signal exported from pressure detector 111B is lower than threshold value, binaryzation portion 125 generates low-voltage water
Flat signal.Thus, binaryzation portion 125, which is converted to the sinuous voltage signal exported from pressure detector 111B, includes
The continuous impulse signal of multiple pulses.Continuous impulse signal is exported from binaryzation portion 125 to the first determination unit 121B.
When the voltage of the signal exported from pressure detector 112B is more than threshold value, binaryzation portion 126 generates high voltage water
Flat signal.When the voltage of the signal exported from pressure detector 112B is lower than threshold value, binaryzation portion 126 generates low-voltage water
Flat signal.Thus, binaryzation portion 126, which is converted to the sinuous voltage signal exported from pressure detector 112B, includes
The continuous impulse signal of multiple pulses.Continuous impulse signal is exported from binaryzation portion 126 to the first determination unit 121B.
When the voltage of the signal exported from pressure detector 113B is more than threshold value, binaryzation portion 127 generates high voltage water
Flat signal.When the voltage of the signal exported from pressure detector 113B is lower than threshold value, binaryzation portion 127 generates low-voltage water
Flat signal.Thus, binaryzation portion 127, which is converted to the sinuous voltage signal exported from pressure detector 113B, includes
The continuous impulse signal of multiple pulses.Continuous impulse signal is exported from binaryzation portion 127 to the first determination unit 121B.
First determination unit 121B receives continuous impulse signal from binaryzation portion 125,126,127.It receives by binaryzation portion
First determination unit 121B of the pulse of the 125 continuous impulse signals generated can export the data of the value of expression " 1 ".Receive by
First determination unit 121B of the pulse for the continuous impulse signal that binaryzation portion 126 generates can export the data of the value of expression " 2 ".
The the first determination unit 121B for receiving the pulse of the continuous impulse signal generated by binaryzation portion 127 can export expression " 3 "
The data of value.
Similarly to the second embodiment, above-mentioned data are exported from the first determination unit 121B to the first storage domain 123.Side
Internal combustion is determined using the decision technology (referring to Fig. 3 and Fig. 4) illustrated in association with second embodiment to determination unit 130A
The direction of rotation of machine.
<the 4th embodiment>
With the output of decision maker that above-mentioned embodiment illustrates in association is related with the direction of rotation of internal combustion engine sentences
Determine result.Also, decision maker can also export information related with the revolving speed of internal combustion engine.In the fourth embodiment, to defeated
The illustrative decision maker of information related with the revolving speed of internal combustion engine is illustrated out.
Fig. 6 is the block diagram of the summary of the decision maker 100C of the 4th embodiment.Illustrate decision maker referring to Fig. 6
100C.The explanation of above-mentioned embodiment is quoted to the element for being labelled with appended drawing reference identical with above-mentioned embodiment.
Similarly to the second embodiment, decision maker 100C has test section 110A and direction determining portion 130A.To this
The explanation of a little element reference second embodiments.
Decision maker 100C, which is also equipped with, is sequentially generated portion 120C and calculation part 140.Similarly to the second embodiment, sequence
Generating unit 120C includes storage unit 122.The explanation of second embodiment is quoted to storage unit 122.
The portion 120C of being sequentially generated also includes the first determination unit 121C and three binaryzation portions 125C, 126C, 127C.Binaryzation
The voltage value set in the mobility scale of the voltage level of the signal exported from position detector 111A is used as threshold by portion 125C
Value, the voltage that binaryzation portion 126C will be set in the mobility scale of the voltage level of the signal exported from position detector 112A
Value is used as threshold value, and binaryzation portion 127C will be set in the mobility scale of the voltage level of the signal exported from position detector 113A
Fixed voltage value is used as threshold value, Lai Jinhang binary conversion treatment.
When the voltage of the signal exported from position detector 111A is lower than threshold value, binaryzation portion 125C generates high voltage water
Flat signal.When the voltage of the signal exported from position detector 111A is more than threshold value, binaryzation portion 125C generates low-voltage
Horizontal signal.Thus, binaryzation portion 125C is converted to the voltage signal exported from position detector 111A comprising multiple arteries and veins
The continuous impulse signal of punching.Continuous impulse signal is exported from binaryzation portion 125C to the first determination unit 121C.
When the voltage of the signal exported from position detector 112A is lower than threshold value, binaryzation portion 126C generates high voltage water
Flat signal.When the voltage of the signal exported from position detector 112A is more than threshold value, binaryzation portion 126C generates low-voltage
Horizontal signal.Thus, binaryzation portion 126C is converted to the voltage signal exported from position detector 112A comprising multiple arteries and veins
The continuous impulse signal of punching.Continuous impulse signal is exported from binaryzation portion 126C to the first determination unit 121C.
When the voltage of the signal exported from position detector 113A is lower than threshold value, binaryzation portion 127C generates high voltage water
Flat signal.When the voltage of the signal exported from position detector 113A is more than threshold value, binaryzation portion 127C generates low-voltage
Horizontal signal.Thus, binaryzation portion 127C is converted to the voltage signal exported from position detector 113A comprising multiple arteries and veins
The continuous impulse signal of punching.Continuous impulse signal is exported from binaryzation portion 127C to the first determination unit 121C.
First determination unit 121C receives continuous impulse signal from binaryzation portion 125C, 126C, 127C.It receives by binaryzation
First determination unit 121C of the pulse for the continuous impulse signal that portion 125C is generated can export the data of the value of expression " 1 ".It receives
The value of expression " 2 " can be exported to the first determination unit 121C of the pulse of the continuous impulse signal generated by binaryzation portion 126C
Data.Expression can be exported by the first determination unit 121C of the pulse of the binaryzation portion 127C continuous impulse signal generated by receiving
The data of the value of " 3 ".
Similarly to the second embodiment, above-mentioned data are exported from the first determination unit 121C to the first storage domain 123.Side
Internal combustion is determined using the decision technology (referring to Fig. 3 and Fig. 4) illustrated in association with second embodiment to determination unit 130A
The direction of rotation of machine.
The voltage signal that position detector 111A is generated is not only output to binaryzation portion 125C, is also output to calculation part
140.The time interval T of the measurement of calculation part 140 reduction since the voltage level of the position detector 111A signal received.Meter
Calculation portion 140, which also can be used by measuring obtained time interval T, exports various calculating knots related with the revolving speed of internal combustion engine
Fruit.For example, the speed of internal combustion engine can be calculated by numerical expression below.
[numerical expression 1]
<the 5th embodiment>
The decision technology illustrated in association with above-mentioned embodiment can also be applied to more than three cylinders
Internal combustion engine.In the 5th embodiment, to the illustrative skill of the direction of rotation for the internal combustion engine for determining to have more than three cylinders
Art is illustrated.
Fig. 7 is the block diagram of the summary of the decision maker 100D of the 5th embodiment.Illustrate decision maker referring to Fig. 7
100D.The explanation of above-mentioned embodiment is quoted to the element for being labelled with appended drawing reference identical with above-mentioned embodiment.
In the same manner as the 4th embodiment, decision maker 100D have test section 110D, be sequentially generated portion 120D, direction is sentenced
Determine portion 130D and calculation part 140D.In the same manner as third embodiment, test section 110D include pressure detector 111B,
112B,113B.To the explanation of these elements reference third embodiment.
Test section 110D also includes pressure detector 114.In the same manner as pressure detector 111B, 112B, 113B, pressure inspection
Survey the internal pressure that device 114 measures the 4th cylinder of internal combustion engine.Pressure detector 111B, 112B, 113B, 114 voltage letters generated
Number to be sequentially generated portion 120D output.
Similarly to the second embodiment, being sequentially generated portion 120D includes storage unit 122.To the reference of storage unit 122 second
The explanation of embodiment.
In the same manner as third embodiment, being sequentially generated portion 120D includes binaryzation portion 125,126,127.To binaryzation portion
125, the explanation of 126,127 reference third embodiments.
The portion 120D of being sequentially generated also includes the first determination unit 121D and binaryzation portion 128.Binaryzation portion 128 and binaryzation portion
125,126,127 similarly, implements binary conversion treatment to the voltage signal generated of pressure detector 114, includes more to generate
The continuous impulse signal of a pulse.The continuous impulse signal generated of binaryzation portion 125,126,127,128 is to the first determination unit
121D output.
First determination unit 121D receives continuous impulse signal from binaryzation portion 125,126,127,128.It receives by two-value
First determination unit 121D of the pulse for the continuous impulse signal that change portion 125 generates can export the data of the value of expression " 1 ".It receives
The value of expression " 2 " can be exported to the first determination unit 121D of the pulse of the continuous impulse signal generated by binaryzation portion 126
Data.The the first determination unit 121D for receiving the pulse of the continuous impulse signal generated by binaryzation portion 127 can export expression
The data of the value of " 3 ".The the first determination unit 121D for receiving the pulse of the continuous impulse signal generated by binaryzation portion 128 can be with
Output indicates the data of the value of " 4 ".The data of first determination unit 121D output are saved in the first storage domain as the first data
123。
The continuous impulse signal that binaryzation portion 125 generates is not only output to the first determination unit 121D, is also output to meter
Calculation portion 140D.Calculation part 140D measures the time interval T of the rising edge of pulse.Calculation part 140D also can be used by measuring
To time interval T export various calculated results related with the revolving speed of internal combustion engine.
Similarly to the second embodiment, direction determining portion 130D includes reading unit 131.To the reference of reading unit 131 second
The explanation of embodiment.
Direction determining portion 130D also includes the second determination unit 132D and storage unit 133.Storage unit 133 keeps the first inquiry table
(hereinafter referred to as " the first LUT ") and the second inquiry table (hereinafter referred to as " the 2nd LUT ").First LUT indicates that internal combustion engine carries out just
Combination to the data obtained when rotation.2nd LUT indicates that internal combustion engine carries out the combination of the data obtained when reversely rotating.With
Under table 1 schematically show the first LUT.Table 2 below schematically shows the 2nd LUT.
[table 1]
[table 2]
Fig. 8 is the flow chart for showing the summary of determination processing performed by the second determination unit 132D.Referring to Fig. 7 and Fig. 8
To illustrate determination processing performed by the second determination unit 132D.
(step S310)
Second determination unit 132D is waited from reading unit 131 and is exported the first data and the second data.As the second determination unit 132D
When receiving the first data and the second data, step S320 is executed.
(step S320)
Second determination unit 132D reads the first LUT and the 2nd LUT from storage unit 133.Later, step S330 is executed.
(step S330)
Second determination unit 132D determines whether the value of the first data and the group of the value of the second data meet the number in the first LUT
According to a certain group in group.If the group of the value of the value of the first data and the second data meets certain in the data group in the first LUT
One group, then follow the steps S340.In other cases, step S350 is executed.
(step S340)
Second determination unit 132D is determined as that internal combustion engine is being rotated in the forward direction.
(step S350)
Second determination unit 132D determines whether the value of the first data and the group of the value of the second data meet the number in the 2nd LUT
According to a certain group in group.If the group of the value of the value of the first data and the second data meets certain in the data group in the 2nd LUT
One group, then follow the steps S360.In other cases, step S370 is executed.
(step S360)
Second determination unit 132D is determined as that internal combustion engine is being reversely rotated.
(step S370)
Second determination unit 132D executes defined error handle.
<sixth embodiment>
Indicate that the judgement result of the direction of rotation of internal combustion engine can be used in various uses.Such as can be, if sentenced
Determine result and direction of rotation specified by control signal is inconsistent, then decision maker gives a warning to the operator of operating ship.
In sixth embodiment, the illustrative technology with warning function is illustrated.
Fig. 9 is the block diagram of the summary of the decision maker 100E of sixth embodiment.Illustrate decision maker referring to Fig. 9
100E.The explanation of above-mentioned embodiment is quoted to the element for being labelled with appended drawing reference identical with above-mentioned embodiment.
In the same manner as the 4th embodiment, decision maker 100E have test section 110A, be sequentially generated portion 120C, direction is sentenced
Determine portion 130A and calculation part 140.These elements are quoted with the explanation of the 4th embodiment.
Decision maker 100E is also equipped with action checking portion 150 and warning portion 160.Fig. 9 shows control device CTR.Operator
Control device CTR is operated, to control the direction of rotation (that is, movement of multiple cylinders) of internal combustion engine.Control device CTR with
The operation of operator correspondingly generates the control signal for specifying the direction of rotation of internal combustion engine.Signal is controlled from control device
CTR is exported to action checking portion 150.
Action checking portion 150 carries out direction of rotation specified by the direction of rotation indicated as judgement result and control signal
Compare.If the direction of rotation and direction of rotation specified by control signal that indicated as judgement result are inconsistent, triggering is generated
Signal.Trigger signal is exported from action checking portion 150 to warning portion 160.
Warning portion 160 carries out defined warning action according to trigger signal.It warning portion 160 can also be raw according to trigger signal
At caution signal.Also it can replace aforesaid way, warning portion 160 is the speaker unit that sound is given a warning according to trigger signal.
Also, it also can replace aforesaid way, warning portion 160 is the emergency warning lamp that light is given a warning according to trigger signal.Present embodiment
Principle be not limited to be used as the specific device in warning portion 160.
<the 7th embodiment>
The decision technology illustrated in association with above-mentioned embodiment can also be embedded in existing ship.So
And the indefinite situation of sequence of cylinder when being rotated in the forward direction or reversely rotated there is also the internal combustion engine of existing ship.
In this case, the sequence of cylinder can also be obtained by experiment before decision technology is embedded in ship.Pass through experiment
The sequence of the cylinder got can suitably be used as corresponding informance.In the 7th embodiment, illustrate the example of corresponding informance
The acquisition methods for the property shown.
Figure 10 is the flow chart for showing the summary of acquisition methods of corresponding informance.Illustrate to correspond to referring to Fig. 4 and Figure 10
The acquisition methods of information.
(step S405)
The operator for carrying out the data sampling for obtaining corresponding informance is different to multiple cylinders distribution of internal combustion engine
Identification serial number.In addition to this, number of cylinders is input to experimental system (not shown) by operator.In the present embodiment, internal combustion
There are three cylinders for equipment.Thus, the identification serial number of " 1 " to " 3 " is distributed to multiple cylinders by operator, and is inputted to experimental system
The value of " 3 ".After carrying out input operation, step S410 is executed.
(step S410)
The value of sampling number SMP is set as " 0 " by experimental system.Later, step S415 is executed.
(step S415)
Operator rotates in the forward direction internal combustion engine.Later, step S420 is executed.
(step S420)
The spin stabilization of operator waiting internal combustion engine.When internal combustion engine is steadily rotated in the forward direction, step S425 is executed.
(step S425)
Experimental system is verified whether from all the sensors (position detection part, pressure detecting portion: ginseng for being installed on multiple cylinders
According to above-mentioned embodiment) receive signal.If experimental system receives signal from all the sensors, then follow the steps
S430.In other cases, step S460 is executed.
(step S430)
Experimental system is based on the signal from sensor corresponding with the cylinder for being marked with identification serial number " 1 ", to determine
Whether the cylinder for being marked with identification serial number " 1 " has become defined state (that is, whether head (cylinder head or crosshead) reaches
Whether the internal pressure of base position or cylinder has reached reference pressure).If the cylinder for being marked with identification serial number " 1 " has become
For defined state, S435 is thened follow the steps.In other cases, step S425 is executed.
(step S435)
Experimental system executes data sampling.In the present embodiment, experimental system is based on coming from and is marked with identification sequence
The signal of the corresponding sensor of cylinder of number " 2 " and from sensor corresponding with the cylinder for being marked with identification serial number " 3 "
Signal, come the cylinder of state as defined in determining to become after the cylinder for being marked with identification serial number " 1 ".As a result, experiment
System can be ranked up multiple cylinders.After sequence, step S440 is executed.
(step S440)
The value of sampling number SMP is increased " 1 " by experimental system.Later, step S445 is executed.
(step S445)
Experimental system determines whether the value of sampling number SMP is " 3 ".If the value of sampling number SMP is " 3 ", execute
Step S450.In other cases, step S435 is executed.
(step S450)
Whether the data (sequence) that experimental system is got in a period of judgement until sampling number SMP changes to " 3 "
There is variation.If the data got in a period of until sampling number SMP changes to " 3 " do not change, then follow the steps
S455.In other cases, step S425 is executed.
(step S455)
Obtained data (sequence) is registered as corresponding informance by experimental system.Experimental system can also be by obtained number
According to reflection into the determination routine referring to illustrated by Fig. 4.Also it can replace aforesaid way, data are registered as reference by experimental system
First LUT and the 2nd LUT illustrated by Tables 1 and 2.
(step S460)
Experimental system and operator carry out defined error handle.It can also be re-executed after the reason of removal mistake
For obtaining the operation of corresponding informance.
In addition, in the above description, SMP being set as " 3 " and is illustrated, but is not limited to " 3 ".From reliability
Viewpoint and from the viewpoint of time until determining sequence, preferably " 3 ".
The design principle illustrated in association with above-mentioned various embodiments can be applied to various ships.With it is above-mentioned
A part of feature in various features that an embodiment in various embodiments illustrates in association can also be applied
In the decision maker illustrated in association with other embodiments.
Industrial availability
The principle of above-mentioned embodiment can be suitably in various ships.
Claims (4)
1. a kind of decision maker determines the direction of rotation with the internal combustion engine of the ship of multiple cylinders, the decision maker tool
It is standby:
Test section detects the variation of the periodic state of the multiple cylinder, and exports state related with the state
Information；And
Direction determining portion, using the status information and with by the multiple cylinder become certain stationary state sequence with it is described
The preset corresponding informance of the associated mode in the direction of rotation of internal combustion engine, to determine the direction of rotation,
Wherein, the multiple cylinder includes multiple movable positions, and the multiple movable position carries out in defined stroke section
It moves back and forth,
The test section includes multiple position detectors, and the multiple position detector detects respectively to be reached in the stroke area
The multiple movable position of the base position of interior setting,
The direction determining portion reaches the sequence of the base position according to the multiple movable position to determine the rotation side
To.
2. decision maker according to claim 1, which is characterized in that
The decision maker is also equipped with calculation part, and the calculation part is according to a position detector in the multiple position detector
A movable position in detected the multiple movable position reaches the time interval of the base position, to calculate
State the revolving speed of internal combustion engine.
3. decision maker according to claim 1 or 2, which is characterized in that
The multiple respective lower dead center in movable position is set to the base position.
4. decision maker according to claim 1 or 2, which is characterized in that be also equipped with:
The direction of rotation and basis that the direction determining portion is determined are used to control the multiple by action checking portion
The specified direction of rotation of the control signal of the movement of cylinder is compared, to determine that it is described that the direction determining portion is determined
Whether direction of rotation is consistent with according to the specified direction of rotation of the control signal；And
Warning portion, if the action checking portion be determined as the direction of rotation that the direction determining portion is determined not with root
It is consistent according to the specified direction of rotation of the control signal, then warning as defined in the warning portion output.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132082A (en) * | 1997-10-27 | 1999-05-18 | Isuzu Motors Ltd | Rotational direction discriminating method for multiple-cylinder engine and device therefor |
| JP2006046236A (en) * | 2004-08-06 | 2006-02-16 | Kokusan Denki Co Ltd | Method and device for determining rotation direction of internal combustion engine |
| JP4302439B2 (en) * | 2003-06-02 | 2009-07-29 | ナブテスコ株式会社 | Rotation direction discriminator for marine engines |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0979125A (en) * | 1995-09-11 | 1997-03-25 | Yamaha Motor Co Ltd | Reverse rotation preventive method and device for two-cycle fuel injection type internal combustion engine |
| JPH11182316A (en) * | 1997-12-25 | 1999-07-06 | Hitachi Ltd | Reversing detection controller |
| US6206656B1 (en) * | 1999-02-22 | 2001-03-27 | Caterpillar Inc. | Method of operating a free piston internal combustion engine with high pressure hydraulic fluid upon misfire or initial start-up |
| JP2017214845A (en) * | 2016-05-30 | 2017-12-07 | ナブテスコ株式会社 | Determination device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132082A (en) * | 1997-10-27 | 1999-05-18 | Isuzu Motors Ltd | Rotational direction discriminating method for multiple-cylinder engine and device therefor |
| JP4302439B2 (en) * | 2003-06-02 | 2009-07-29 | ナブテスコ株式会社 | Rotation direction discriminator for marine engines |
| JP2006046236A (en) * | 2004-08-06 | 2006-02-16 | Kokusan Denki Co Ltd | Method and device for determining rotation direction of internal combustion engine |
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