CN110243608A - Detect the method and electric-control diesel engine of camshaft misloading - Google Patents
Detect the method and electric-control diesel engine of camshaft misloading Download PDFInfo
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- CN110243608A CN110243608A CN201910581813.7A CN201910581813A CN110243608A CN 110243608 A CN110243608 A CN 110243608A CN 201910581813 A CN201910581813 A CN 201910581813A CN 110243608 A CN110243608 A CN 110243608A
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- engine
- camshaft
- misloading
- starter motor
- signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The present invention provides a kind of methods for detecting camshaft misloading, when starter motor continuous several times dragging engine action engine can not start and not issue synchronization signal error message, switching engine enters single axis start-up mode, if started successfully, issues camshaft installation dislocation fault message.Starter motor obtain it is electric after work and drag engine start, it cannot light a fire starting in engine, and when engine does not issue synchronization signal error message, illustrate that camshaft signal is consistent for ECU with crankshaft signal position at this time, at this time by the way that engine is switched to single axis start-up mode, if engine can start, it can recognize that engine failure position is camshaft installation dislocation, engine maintenance can be completed by being adjusted to camshaft installation site, maintenance time is saved in accurate positioning.The present invention also provides a kind of electric-control diesel engines.
Description
Technical field
The present invention relates to technical field of engines, more specifically to a kind of method and electricity for detecting camshaft misloading
Control diesel engine.
Background technique
During engine assembly, need to obtain the synchronization signal of engine crankshaft signals and camshaft signal, to protect
Demonstrate,prove engine assembly in place.The acquisition of crankshaft signal generally will do it punching on engine flywheel, the meeting in crankshaft 1 circle of rotation
The pulse signal of 60 teeth that subtract 2 is generated, one full stroke of engine is 2 circle of rotation, and 2 ring signals are just the same, to identification
Compression top center must cooperate camshaft signal.
The acquisition of camshaft signal generally will be installed camshaft signal disk on high-pressure oil pump of engine axis, revolve in camshaft
The change of team generates the pulse signal and crankshaft signal cooperation identification compression top center of 6 plus 1 tooth.
During the prior art is to engine assembly, if when crankshaft hypodontia and the multiple tooth relative position of camshaft are beyond regulation
When range, the insincere failure of synchronization signal can be quoted, i.e. crankshaft and camshaft assembly is not in place, need to adjust the two assembly relation.
However, the problem of if there is camshaft phase misloading 180 degree, crankshaft and camshaft signal position complete for ECU one at this time
Sample, but engine can not start, and be difficult test problems point.
Therefore, how to identify engine assembly failure caused by camshaft phase misloading, be current those skilled in the art
Urgent problem to be solved.
Summary of the invention
In view of this, the present invention provides a kind of methods for detecting camshaft misloading, to identify that camshaft phase misloading draws
The engine assembly failure risen；The present invention also provides a kind of electric-control diesel engines.
In order to achieve the above object, the invention provides the following technical scheme:
A method of detection camshaft misloading, comprising steps of
S01: when the dragging engine movement of starter motor continuous several times, the engine can not start and not issue synchronization signal
When error message, into S02；
S02: switching engine enters single axis start-up mode, if started successfully, issues camshaft installation dislocation failure
Information.
Preferably, in the method for above-mentioned detection camshaft misloading, when the starter motor drags engine movement, institute
The revolving speed for stating starter motor is greater than predetermined dragging revolving speed.
Preferably, in the method for above-mentioned detection camshaft misloading, the single axis start-up mode is by the distribution of crankshaft
After phase carries out the switching of air inlet phase and exhaust phase, engine start is dragged by the starter motor again.
Preferably, in the method for above-mentioned detection camshaft misloading, the dislocation fault message is the established angle of camshaft
Spend misloading 180 degree.
It preferably, further include starting ignition switch in the method for above-mentioned detection camshaft misloading, before the S01, concurrently
Start the control signal of engine out.
Preferably, in the method for above-mentioned detection camshaft misloading, the S02 further includes, if the engine enters
Single axis start-up mode can not still start, then enter engine oil spout, air inlet or mechanical breakdown and check program.
The ECU being monitored to crankshaft signal and camshaft signal is arranged inside in a kind of electric-control diesel engine, described
The method that camshaft misloading is detected described in any one as above is preset in ECU.
The method of detection camshaft misloading provided by the invention, when starter motor continuous several times drag engine action engine
When can not start and not issue synchronization signal error message, switching engine enters single axis start-up mode, if started successfully,
Issue camshaft installation dislocation fault message.Starter motor obtain it is electric after work and drag engine start, cannot light a fire and open in engine
It is dynamic, and when engine does not issue synchronization signal error message, illustrate camshaft signal at this time and crankshaft signal position for
ECU is consistent, at this time by the way that engine is switched to single axis start-up mode, if engine can start, that is, can recognize and starts
Machine abort situation is camshaft installation dislocation, and engine maintenance can be completed by being adjusted to camshaft installation site, fixed
Level is true, saves maintenance time.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow chart of the method for detection camshaft misloading provided by the invention.
Specific embodiment
The invention discloses a kind of methods for detecting camshaft misloading, identify engine caused by camshaft phase misloading
Assembly failure；The present invention also provides a kind of electric-control diesel engines.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is the flow charts of the method for detection camshaft misloading provided by the invention.
The present invention provides a kind of methods for detecting camshaft misloading, comprising steps of
S01: when starter motor continuous several times dragging engine action engine can not start and not issue synchronization signal mistake
When information, into S02.
After starter motor dragging engine is multiple, engine still cannot normally start, meanwhile, engine is also synchronized without issuing
Signal error information, illustrate crankshaft signal and the position of camshaft signal for signal location preset in ECU as.At this point,
Since air inlet phase and the signal of port timing are just the same in a stroke for crankshaft, needing to exclude engine first cannot be just
It often whether is crank position dislocation the reason of starting, fault location avoids being directly entered machine failure monitoring.
S02: switching engine enters single axis start-up mode, if started successfully, issues camshaft installation dislocation failure
Information.
Engine cannot normally be started, while engine does not issue synchronization signal error message as single axis and starts mould
The enabled condition of formula reduces since the other failures of engine cause engine that cannot normally start, accurately identifies fault point.
Starter motor obtain it is electric after work and drag engine start, cannot light a fire starting in engine, and engine is not sent out
Out when synchronization signal error message, illustrate that camshaft signal is consistent for ECU with crankshaft signal position at this time, at this time by that will send out
Motivation switches to single axis start-up mode, if engine can start, that is, can recognize engine failure position for camshaft peace
Engine maintenance can be completed by being adjusted to camshaft installation site in wrongly installed position, accurate positioning, saves maintenance time.
In one specific embodiment of this case, when starter motor drags engine movement, the revolving speed of starter motor is greater than predetermined dragging
Revolving speed.Starter motor it is electric after reach predetermined dragging revolving speed after, then control starter motor movement, gear and engine dragged by it
Flywheel engagement, dragging engine movement.It is controlled by the revolving speed to starter motor, it is settable to starter motor in Engine ECU
The rotation speed monitoring module that revolving speed is monitored guarantees that starting is working properly, avoids generating since starter motor job failure causes to send out
Motivation is unable to starting problem.
In one specific embodiment of this case, single axis start-up mode is that the port timing of crankshaft is carried out air inlet phase and row
After the switching of gas phase, engine start is dragged by starter motor again.The port timing of crankshaft includes air inlet phase and exhaust phase
Position, crankshaft are 2 circles of rotation in a full stroke, and 2 circles respectively correspond air inlet phase and exhaust phase, and 2 ring signals are just the same,
That first defaults that a wherein circle is pair in engine start starts, and when acceleration, which is unable to reach, to be required, switches another circle
Started, engine start success after, illustrate camshaft setting angle dislocation, need to adjust its angle again with air inlet phase
Position is corresponding with exhaust phase.
Preferably, dislocation fault message is the setting angle misloading 180 degree of camshaft.Simultaneously, it should be noted that due to
The revolving speed of crankshaft and camshaft is higher, and in order to which intake and exhaust are abundant, crankshaft can be done sth. in advance in arrangement and postpone certain crank angle, this
Method can divide in the installation dislocation fault message for identifying camshaft, and when being adjusted to crankshaft angles according to port timing
The influence for considering crank angle in the angle of 180 degree is fitted over, rotational angle adjustment is carried out.
It further include S11 step before S01, starting ignition switchs, and issues starting engine in one specific embodiment of this case
Control signal.When engine start, whether ECU simultaneously open by monitors ignition ignition switch, in the starting control of confirmation engine
After information processed, starter motor starts and drags engine start after it reaches desired speed.
In one specific embodiment of this case, S02 further includes S03, if engine enters single, axis start-up mode still can not
Starting then enters engine oil spout, air inlet or mechanical breakdown and checks program.After carrying out the starting test of single axis, engine is still not
Can starting, then can exclude crankshaft misloading problem, the deterministic process of crankshaft misloading terminates, can by engine oil spout situation, into
Gaseity and whether engine is in other machinery failure is checked, realizes automatically confirming that for engine failure.
The method of the detection camshaft misloading provided in based on the above embodiment, the present invention also provides a kind of electric control diesels
Engine is preset in the ECU as mentioned in above-described embodiment including the ECU being monitored to crankshaft signal and camshaft signal
The method of the detection camshaft misloading of confession.
Due to the method that the electric-control diesel engine uses the detection camshaft misloading of above-described embodiment, so this is automatically controlled
Diesel engine please refers to above-described embodiment by the method bring beneficial effect of detection camshaft misloading.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of method for detecting camshaft misloading, which is characterized in that comprising steps of
S01: when the dragging engine movement of starter motor continuous several times, the engine can not start and not issue synchronization signal mistake
When information, into S02；
S02: switching engine enters single axis start-up mode, if started successfully, issues camshaft installation dislocation fault message.
2. the method for detection camshaft misloading according to claim 1, which is characterized in that the starter motor drags the hair
When motivation acts, the revolving speed of the starter motor is greater than predetermined dragging revolving speed.
3. the method for detection camshaft misloading according to claim 2, which is characterized in that the single axis start-up mode is
After the switching that the port timing of crankshaft is carried out to air inlet phase and exhaust phase, engine is dragged by the starter motor again and is opened
It is dynamic.
4. the method for detection camshaft misloading according to claim 1, which is characterized in that the dislocation fault message is convex
The setting angle misloading 180 degree of wheel shaft.
5. the method for detection camshaft misloading according to claim 1, which is characterized in that further include starting before the S01
Ignition switch, and issue the control signal of starting engine.
6. the method for detection camshaft misloading according to claim 1, which is characterized in that the S02 further includes, if institute
Stating engine and entering single axis start-up mode can not still start, then enters engine oil spout, air inlet or mechanical breakdown and check program.
7. a kind of electric-control diesel engine, is arranged inside the ECU being monitored to crankshaft signal and camshaft signal, feature exists
In preset just like the method for detecting camshaft misloading described in any one of claim 1-6 in the ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581813.7A CN110243608B (en) | 2019-06-30 | 2019-06-30 | Method for detecting misassembly of camshaft and electric control diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910581813.7A CN110243608B (en) | 2019-06-30 | 2019-06-30 | Method for detecting misassembly of camshaft and electric control diesel engine |
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| CN110243608A true CN110243608A (en) | 2019-09-17 |
| CN110243608B CN110243608B (en) | 2021-10-29 |
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| CN201910581813.7A Active CN110243608B (en) | 2019-06-30 | 2019-06-30 | Method for detecting misassembly of camshaft and electric control diesel engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486207A (en) * | 2019-09-29 | 2019-11-22 | 潍柴西港新能源动力有限公司 | A kind of method and system that ignition failure detects automatically |
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| US4974449A (en) * | 1988-08-23 | 1990-12-04 | Steve Core | Method for balancing the crankshaft in an uneven degree firing engine |
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| CN201237550Y (en) * | 2008-05-20 | 2009-05-13 | 韦良东 | Electronic control replacement detecting instrument for engine |
| CN101984235A (en) * | 2010-09-21 | 2011-03-09 | 中国第一汽车集团公司 | Timing control system of diesel engine based on state machine and time processing unit (TPU) |
| CN106499532A (en) * | 2016-10-19 | 2017-03-15 | 中国第汽车股份有限公司 | A kind of fast startup procedure of electromotor |
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2019
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Patent Citations (5)
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| US4974449A (en) * | 1988-08-23 | 1990-12-04 | Steve Core | Method for balancing the crankshaft in an uneven degree firing engine |
| CN1441158A (en) * | 2002-02-26 | 2003-09-10 | 株式会社电装 | Engine control equipment |
| CN201237550Y (en) * | 2008-05-20 | 2009-05-13 | 韦良东 | Electronic control replacement detecting instrument for engine |
| CN101984235A (en) * | 2010-09-21 | 2011-03-09 | 中国第一汽车集团公司 | Timing control system of diesel engine based on state machine and time processing unit (TPU) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486207A (en) * | 2019-09-29 | 2019-11-22 | 潍柴西港新能源动力有限公司 | A kind of method and system that ignition failure detects automatically |
| CN110486207B (en) * | 2019-09-29 | 2021-05-18 | 潍柴西港新能源动力有限公司 | Method and system for automatically detecting ignition system fault |
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| CN110243608B (en) | 2021-10-29 |
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