CN109538351A - Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion - Google Patents
Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion Download PDFInfo
- Publication number
- CN109538351A CN109538351A CN201811445856.4A CN201811445856A CN109538351A CN 109538351 A CN109538351 A CN 109538351A CN 201811445856 A CN201811445856 A CN 201811445856A CN 109538351 A CN109538351 A CN 109538351A
- Authority
- CN
- China
- Prior art keywords
- tooth
- crankshaft
- crankshaft signal
- mill damage
- difference
- 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.)
- Pending
Links
- 238000005299 abrasion Methods 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 12
- 206010055001 Hypodontia Diseases 0.000 claims description 43
- 206010002583 anodontia Diseases 0.000 claims description 43
- 230000005213 hypodontia Effects 0.000 claims description 43
- 201000006680 tooth agenesis Diseases 0.000 claims description 43
- 230000015556 catabolic process Effects 0.000 claims description 11
- 238000006731 degradation reaction Methods 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 2
- 230000036339 tooth positioning Effects 0.000 description 2
- 238000013024 troubleshooting Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000405098 Champsodontidae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
This application discloses detection method, device and the electronic control units of a kind of abrasion of engine crankshaft signal panel, this method can determine whether crankshaft signal disk wears according to the difference of tooth rotational parameters value and standard parameter value, if the absolute value of the difference is not less than preset threshold, it is determined that crankshaft signal disk is worn.Moreover, the application is set also according to the feature tooth position of crankshaft, the feature tooth position of camshaft is set and the difference, the type of crankshaft signal mill damage and the position of crankshaft signal mill damage are determined.Thus, the application can not only determine whether crankshaft signal disk wears, additionally it is possible to determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage, be conducive to quickly handle crankshaft signal mill damage.
Description
Technical field
This application involves technical field of vehicle more particularly to a kind of detection methods of engine crankshaft signal panel abrasion, dress
It sets and electronic control unit.
Background technique
With the fast development of vehicle technology, vehicle safety is more and more important.Wherein, whether engine crankshaft signal panel grinds
One of an important factor for damage is influence vehicle safety.When hypodontia or the different types of mill such as multiple tooth occurs in engine crankshaft signal panel
When damage, the problems such as engine is occurred without synchronization signal, starting difficulty, engine speed shakiness or tourist bus will lead to, and then will be right
Vehicle safety generates adverse effect.
But since the prior art only can determine that engine crankshaft signal panel whether there is abrasion, but can not determine
The type of crankshaft signal mill damage and the position of crankshaft signal mill damage.
Summary of the invention
In order to solve the above technical problem existing in the prior art, the application provides a kind of engine crankshaft signal panel mill
Detection method, device and the electronic control unit of damage can accurately determine the type and crankshaft letter of crankshaft signal mill damage
The position of dialer abrasion.
To achieve the goals above, technical solution provided by the present application is as follows:
A kind of detection method of engine crankshaft signal panel abrasion, comprising: when engine is in steady state condition, obtain bent
Tooth rotational parameters value on axis signal disk；
Obtain the difference between the tooth rotational parameters value and standard parameter value；The standard parameter value is to work as crankshaft signal
Tooth rotational parameters value when disk is not worn；
Judge whether the absolute value of the difference is not less than preset threshold；
If the absolute value of the difference is not less than the preset threshold, set according to the feature tooth position of crankshaft, the spy of camshaft
Sign tooth position set with the difference, determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage；The camshaft
It is connect with the crankshaft signal disk.
Optionally, the tooth rotational parameters value is the length of tooth rim phase；Wherein, the tooth rim phase is phase on crankshaft signal disk
Time interval between adjacent two teeth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal disk
The type of abrasion and the position of crankshaft signal mill damage, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is hypodontia；According to the feature tooth of the crankshaft
The feature tooth position of position and the camshaft is set, and determines the position of the crankshaft signal disk hypodontia；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth；According to the feature tooth of the crankshaft
The feature tooth position of position and the camshaft is set, and determines the multiple tooth position of the crankshaft signal disk.
Optionally, the tooth rotational parameters value is the quantity of tooth rim phase；The tooth rim phase is adjacent two on crankshaft signal disk
Time interval between a tooth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal disk
The type of abrasion and the position of crankshaft signal mill damage, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth, and according to the feature of the crankshaft
Tooth position is set sets with the feature tooth position of the camshaft, determines the multiple tooth position of the crankshaft signal disk；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is hypodontia, and according to the feature of the crankshaft
Tooth position is set sets with the feature tooth position of the camshaft, determines the position of the crankshaft signal disk hypodontia.
Optionally, the tooth rotational parameters value is that tooth rim is long；Wherein, two neighboring on a length of crankshaft signal disk of the tooth rim
Arc length between tooth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal disk
The type of abrasion and the position of crankshaft signal mill damage, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is hypodontia, and according to the feature of the crankshaft
Tooth position is set sets with the feature tooth position of the camshaft, determines the position of the crankshaft signal disk hypodontia；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth, and according to the feature of the crankshaft
Tooth position is set sets with the feature tooth position of the camshaft, determines the multiple tooth position of the crankshaft signal disk.
It is optionally, described to obtain on crankshaft signal disk before the tooth rotational parameters value of tooth, further includes:
Determine that engine is in steady state condition.
Optionally, after the type of the determining crankshaft signal mill damage and the position of crankshaft signal mill damage, further includes:
Issue crankshaft signal mill damage fault-signal so that engine according to the crankshaft signal mill damage fault-signal into
Row degradation；Wherein, the crankshaft signal mill damage fault-signal, comprising: the type of the crankshaft signal mill damage and institute
State the position of crankshaft signal mill damage；The crankshaft signal mill damage fault-signal and the degradation correspond.
A kind of detection device of engine crankshaft signal panel abrasion, comprising:
First obtains module, for obtaining the tooth rotational parameters on crankshaft signal disk when engine is in steady state condition
Value；
Second obtains module, for obtaining the difference between the tooth rotational parameters value and standard parameter value；The standard
Parameter value is the tooth rotational parameters value when crankshaft signal disk is not worn；
Judgment module, for judging whether the absolute value of the difference is not less than preset threshold；
First determining module, if the absolute value for the difference is not less than the preset threshold, according to the feature of crankshaft
Tooth position is set, the feature tooth position of camshaft is set and the difference, determines the type and crankshaft signal mill damage of crankshaft signal mill damage
Position；The camshaft is connect with the crankshaft signal disk.
Optionally, the tooth rotational parameters value is the length of tooth rim phase；Wherein, the tooth rim phase is phase on crankshaft signal disk
Time interval between adjacent two teeth；
First determining module, specifically includes:
First judging submodule, for judging whether the difference is greater than 0；
First determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia；
It is set according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets；
Second determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth；
It is set according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets.
Optionally, the tooth rotational parameters value is the quantity of tooth rim phase；The tooth rim phase is adjacent two on crankshaft signal disk
Time interval between a tooth；
First determining module, specifically includes:
Second judgment submodule, for judging whether the difference is greater than 0；
Third determines submodule, if for the difference be greater than 0, it is determined that the type of crankshaft signal mill damage be it is multiple tooth,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets；
4th determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is hypodontia,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets.
Optionally, the tooth rotational parameters value is that tooth rim is long；Wherein, two neighboring on a length of crankshaft signal disk of the tooth rim
Arc length between tooth；
First determining module, specifically includes:
Third judging submodule, for judging whether the difference is greater than 0；
5th determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets；
6th determine submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage be it is multiple tooth,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets.
Optionally, further includes:
Second determining module, for determining that engine is in steady state condition.
Optionally, further includes:
Sending module, for issuing crankshaft signal mill damage fault-signal, so that engine is according to the crankshaft signal disk
Wear-out failure signal carries out degradation；Wherein, the crankshaft signal mill damage fault-signal, comprising: the crankshaft signal disk
The position of the type of abrasion and the crankshaft signal mill damage；The crankshaft signal mill damage fault-signal and the degradation
It corresponds.
A kind of electronic control unit, comprising: the inspection of the abrasion of engine crankshaft signal panel described in any of the above-described implementation
Survey device.
Compared with prior art, the application at least has the advantages that
The detection method of engine crankshaft signal panel abrasion provided by the present application, according to tooth rotational parameters value and standard parameter
The difference of value determines whether crankshaft signal disk wears.If the absolute value of the difference is not less than preset threshold, it is determined that crankshaft
Signal panels are worn.Moreover, this method is set also according to the feature tooth position of crankshaft, the feature tooth position of camshaft is set and the difference
Value, determines the type of crankshaft signal mill damage and the position of crankshaft signal mill damage.Thus, this method can not only determine crankshaft
Whether signal panels wear, additionally it is possible to determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage, favorably
In quickly processing crankshaft signal mill damage.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of stream of embodiment of detection method of engine crankshaft signal panel provided by the embodiments of the present application abrasion
Cheng Tu；
Fig. 2 is a kind of flow chart of embodiment of S104 provided by the embodiments of the present application；
Fig. 3 is the flow chart of the another embodiment of S104 provided by the embodiments of the present application；
Fig. 4 is the flow chart of another embodiment of S104 provided by the embodiments of the present application；
Fig. 5 is the detection method another embodiment of engine crankshaft signal panel provided by the embodiments of the present application abrasion
Flow chart；
Fig. 6 is the structural schematic diagram of the detection device of engine crankshaft signal panel provided by the embodiments of the present application abrasion；
Fig. 7 is the structural schematic diagram of electronic control unit provided by the embodiments of the present application.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this
Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Embodiment one
Referring to Fig. 1, which is a kind of reality of detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application
Apply the flow chart of mode.
The detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application, comprising:
S101: when engine is in steady state condition, the tooth rotational parameters value on crankshaft signal disk is obtained.
Steady state condition refers to that engine is in stable state.Whether engine is in steady state condition can be according to different
Engine parameter is determined.
As an example, engine whether be in steady state condition can be according to the whether stable determination of revolving speed of engine.If hair
The stabilization of speed of motivation, then it represents that engine is in steady state condition；If the rotary speed unstabilization of engine is fixed, then it represents that engine is not located
In steady state condition.
Thus, as an implementation, when the revolving speed according to engine determines whether engine is in steady state condition,
S101 is specifically as follows: when engine peed stable, obtaining the tooth rotational parameters value on crankshaft signal disk.
Tooth rotational parameters value is used to indicate the relevant parameter when tooth rotation on crankshaft signal disk.Moreover, tooth rotational parameters
Value can be obtained by the device for obtaining tooth rotational parameters value, for example, crankshaft sensor can be used for obtaining tooth rotational parameters
Value.
As an example, tooth rotational parameters can be the length of tooth rim phase.
Wherein, the tooth rim phase is the time interval on crankshaft signal disk between two neighboring tooth.
For example, when crankshaft signal disk includes equally distributed 60 teeth, and crankshaft signal disk rotates when once needing 60ms,
Then the length of the tooth rim phase between two neighboring tooth is 1ms.
Thus, as an implementation, when tooth rotational parameters are the length of tooth rim phase, S101 is specifically as follows: when
When engine is in steady state condition, the length of the tooth rim phase on crankshaft signal disk between two neighboring tooth is obtained.
As another example, tooth rotational parameters can be the quantity of tooth rim phase.
For example, when crankshaft signal disk includes equally distributed 60 teeth, and the length of the tooth rim phase between two neighboring tooth
When for 1ms, if being moved to the 4th tooth from first tooth by 3ms, the tooth rim between first tooth and the 4th tooth at this time
The quantity of phase is 3.
Thus, as another embodiment, when tooth rotational parameters are the quantity of tooth rim phase, S101 is specifically as follows:
When engine is in steady state condition, the quantity of the tooth rim phase between two different teeth on crankshaft signal disk is obtained.
As another example, it is long to can be tooth rim for tooth rotational parameters.
Wherein, the arc length on a length of crankshaft signal disk of the tooth rim between two neighboring tooth.
For example, when crankshaft signal disk includes equally distributed 60 teeth, and when the Zhou Changwei 60cm of crankshaft signal disk, if from
First tooth is moved to second tooth by 1cm, then a length of 1cm of tooth rim between first tooth and second tooth at this time.
Thus, as another embodiment, when tooth rotational parameters are that tooth rim is long, S101 is specifically as follows: when starting
When machine is in steady state condition, the tooth rim obtained on crankshaft signal disk between two neighboring tooth is long.
S102: the difference between the tooth rotational parameters value and standard parameter value is obtained.
Wherein, the standard parameter value is the tooth rotational parameters value when crankshaft signal disk is not worn.
As an example, if tooth rotational parameters value is the length of tooth rim phase, standard parameter value be when crankshaft signal disk not
The length of the time interval between two neighboring tooth when abrasion.
Thus, as an implementation, when tooth rotational parameters are the length of tooth rim phase, S102 is specifically as follows: will
It is poor that the length of tooth rim phase between the length of tooth rim phase between two neighboring tooth obtained and the two neighboring tooth of standard is made, and obtains
Take the difference.
As another example, if tooth rotational parameters value is the quantity of tooth rim phase, standard parameter value is when crankshaft signal disk
The quantity of the tooth rim phase at the interval between different teeth when not wearing.
Thus, as another embodiment, when tooth rotational parameters are the quantity of tooth rim phase, S102 is specifically as follows:
It is poor that the quantity of the tooth rim phase between the quantity of tooth rim phase and two different teeth of standard between the different teeth of two for will acquire is made,
Obtain the difference.
As another example, if tooth rotational parameters value is that tooth rim is long, standard parameter value is when crankshaft signal disk is not worn
When two neighboring tooth between arc length.
Thus, as another embodiment, when tooth rotational parameters are that tooth rim is long, S102 is specifically as follows: will acquire
Two neighboring tooth between the long tooth rim between the two neighboring tooth of standard of tooth rim it is long make poor, obtain the difference.
S103: judge whether the absolute value of the difference is not less than preset threshold.If so, executing S104；If it is not, then holding
Row S101.
Preset threshold can be preset, and preset threshold is nonnegative number.As an example, preset threshold can be according to working as
Difference of crankshaft signal disk when not wearing between practical tooth rotational parameters value and standard parameter value determines.
S104: setting, the feature tooth position of camshaft is set and the difference according to the feature tooth position of crankshaft, determines crankshaft signal disk
The type of abrasion and the position of crankshaft signal mill damage.
Wherein, the camshaft is connect with the crankshaft signal disk.
The feature tooth of crankshaft can be the tooth on crankshaft signal disk with tooth positioning action.
As an example it is supposed that crankshaft signal disk includes equally distributed 60 teeth, and number consecutively is 1-60, if by the
40 teeth remove, then the characteristic value of the crankshaft signal disk is located at the position of the 40th tooth.
The feature tooth of camshaft can be the tooth on camshaft with tooth positioning action.
As an example it is supposed that camshaft includes equally distributed 6 teeth, and number consecutively is 1-6, if by the 3rd tooth
Remove, then the characteristic value of the camshaft is located at the position of the 3rd tooth.
S104 can use different embodiments, successively be introduced below in conjunction with attached drawing.
Referring to fig. 2, a kind of flow chart for embodiment which is S104 provided by the embodiments of the present application.
As an implementation, when tooth rotational parameters value is the length of tooth rim phase, S104 is specifically as follows:
S1041: judge whether the difference is greater than 0.If so, executing S1042；If it is not, then executing S1044.
When tooth rotational parameters value is the length of tooth rim phase, if the difference is greater than 0, then it represents that crankshaft sensor obtains
Two neighboring tooth between the tooth rim phase length be greater than the corresponding full-height tooth period length, then can determine two teeth it
Between hypodontia has occurred；If the difference is less than 0, then it represents that the tooth rim phase between two neighboring tooth that crankshaft sensor obtains
Length be less than the corresponding full-height tooth period length, then can determine had occurred between two teeth it is multiple tooth；If the difference
Equal to 0, then it represents that the length for the tooth rim phase between two neighboring tooth that crankshaft sensor obtains is equal to the corresponding full-height tooth period
Length, then can determine and be damaged between two teeth, and it is described damage to except hypodontia and it is multiple tooth in addition to abrasion
The general designation of type.
S1042: the type for determining crankshaft signal mill damage is hypodontia.
S1043: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The position of dialer hypodontia.
S1044: judge the difference whether less than 0；If so, executing S1045；If it is not, then executing S1047.
S1045: determine that the type of crankshaft signal mill damage is multiple tooth.
S1046: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The multiple tooth position of dialer.
S1047: determine the type of crankshaft signal mill damage for damage.
S1048: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The position of dialer damage.
The application other than judging crankshaft signal disk using the length of tooth rim phase and whether wearing, can also using different teeth it
The quantity in raker tooth period judges.
Referring to Fig. 3, which is the flow chart of the another embodiment of S104 provided by the embodiments of the present application.
As another embodiment, when tooth rotational parameters value is the quantity of tooth rim phase, S104 is specifically as follows:
S104a: judge whether the difference is greater than 0.If so, executing S104b；If it is not, then executing S104d.
When tooth rotational parameters value is the quantity of tooth rim phase, if the difference is greater than 0, then it represents that crankshaft sensor obtains
Two different teeth between the quantity of tooth rim phase be greater than the quantity in corresponding full-height tooth period, then can determine two differences
It is had occurred between tooth multiple tooth；If the difference is less than 0, then it represents that the tooth rim between two different teeth that crankshaft sensor obtains
The quantity of phase is less than the quantity in corresponding full-height tooth period, then can determine and hypodontia has occurred between this two different teeth；If
The difference is equal to 0, then it represents that the quantity for the tooth rim phase between two different teeth that crankshaft sensor obtains is equal to corresponding mark
The quantity of quasi- tooth rim phase can then determine and be damaged between this two different teeth, and the damage is to except hypodontia and more
The general designation of wear type other than tooth.
S104b: determine that the type of crankshaft signal mill damage is multiple tooth.
S104c: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The multiple tooth position of dialer.
S104d: judge the difference whether less than 0；If so, executing S104e；If it is not, then executing S104g.
S104e: the type for determining crankshaft signal mill damage is hypodontia.
S104f: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The position of dialer hypodontia.
S104g: determine the type of crankshaft signal mill damage for damage.
S104h: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The position of dialer damage.
The application can also utilize difference other than judging crankshaft signal disk using the relevant parameter of tooth rim phase and whether wearing
The long judgement of tooth rim between tooth.
Referring to fig. 4, which is the flow chart of another embodiment of S104 provided by the embodiments of the present application.
As another embodiment, when tooth rotational parameters value is that tooth rim is long, S104 is specifically as follows:
S104A: judge whether the difference is greater than 0.If so, executing S104B；If it is not, then executing S104D.
When tooth rotational parameters value is that tooth rim is long, if the difference is greater than 0, then it represents that crankshaft sensor obtains adjacent
Tooth rim between two teeth is long greater than corresponding full-height tooth perimeter, then can determine and hypodontia has occurred between two teeth；If
The difference is less than 0, then it represents that the tooth rim between two neighboring tooth that crankshaft sensor obtains is long to be less than corresponding standard tooth rim
It is long, then can determine had occurred between two teeth it is multiple tooth；If the difference is equal to 0, then it represents that crankshaft sensor obtained
Tooth rim length between two neighboring tooth is equal to corresponding full-height tooth perimeter, then can determine and be damaged between two teeth,
And it is described damage to except hypodontia and it is multiple tooth in addition to wear type general designation.
S104B: the type for determining crankshaft signal mill damage is hypodontia.
S104C: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The position of dialer hypodontia.
S104D: judge the difference whether less than 0；If so, executing S104E；If it is not, then executing S1047G.
S104E: determine crankshaft signal mill damage type be it is multiple tooth,
S104F: setting according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determines the crankshaft letter
The multiple tooth position of dialer.
S104G: determine the type of crankshaft signal mill damage for damage.
The detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application, according to tooth rotational parameters value and mark
The difference of quasi- parameter value determines whether crankshaft signal disk wears.If the absolute value of the difference is not less than preset threshold, really
Determine crankshaft signal disk to wear.Moreover, this method is set also according to the feature tooth position of crankshaft, the feature tooth position of camshaft is set and institute
Difference is stated, determines the type of crankshaft signal mill damage and the position of crankshaft signal mill damage.Thus, this method can not only determine
Whether crankshaft signal disk wears, additionally it is possible to determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage,
Be conducive to quickly handle crankshaft signal mill damage.
In order to further increase the accurate of the type of determining crankshaft signal mill damage and the position of crankshaft signal mill damage
Property, the embodiment of the present application also provides the another embodiments of the detection method of engine crankshaft signal panel abrasion, below will
It is explained and illustrated in conjunction with attached drawing.
Embodiment two:
Embodiment is second is that the improvement carried out on the basis of example 1, for the sake of brevity, embodiment two and embodiment
The identical part of one content, details are not described herein.
Referring to Fig. 5, which is that the detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application is another
The flow chart of embodiment.
The detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application, comprising:
S201: judge whether engine is in steady state condition.If so, executing S202；If it is not, then executing S201.
If engine is not at steady state condition, the tooth rotational parameters value of the crankshaft signal disk of acquisition be it is inaccurate,
Reduce the accuracy of the type of determining crankshaft signal mill damage and the position of crankshaft signal mill damage.Thus, in order to improve
The accuracy for determining the type of crankshaft signal mill damage and the position of crankshaft signal mill damage determines that engine is in stable state work
Condition.
As an implementation, S201 can specifically include: when engine is in steady state condition, then execute S202；
When engine is not at steady state condition, after preset time being waited, rejudge whether engine is in steady state condition.Its
In, preset time can be preset, and can also be set according to practical application scene.
S202: judge whether crankshaft sensor breaks down.If so, executing S203；If it is not, then executing S210.
If crankshaft sensor breaks down, the tooth rotational parameters value that crankshaft sensor obtains is inaccurate, reduction
The accuracy of the position of the type and crankshaft signal mill damage of determining crankshaft signal mill damage.Thus, in order to improve determination
The accuracy of the position of the type and crankshaft signal mill damage of crankshaft signal mill damage, determining crankshaft sensor, there is no events
Barrier.
S203: judge whether camshaft-signal sensor breaks down.If so, executing S204；If it is not, then executing S209.
If camshaft-signal sensor breaks down, camshaft-signal sensor obtain parameter be it is inaccurate, reduce determination
The accuracy of the position of the type and crankshaft signal mill damage of crankshaft signal mill damage.Thus, in order to improve determining crankshaft letter
The accuracy of the position of the type and crankshaft signal mill damage of dialer abrasion, determining camshaft-signal sensor, there is no failures.
S204: the tooth rotational parameters value on crankshaft signal disk is obtained.
The content of S204 and the content of S101 are identical, and details are not described herein.
S205: the difference between the tooth rotational parameters value and standard parameter value is obtained.
The content of S205 and the content of S102 are identical, and details are not described herein.
S206: judge whether the absolute value of the difference is not less than preset threshold.If so, executing S207；If it is not, then holding
Row S201.
S207: setting, the feature tooth position of camshaft is set and the difference according to the feature tooth position of crankshaft, determines crankshaft signal disk
The type of abrasion and the position of crankshaft signal mill damage；The camshaft is connect with the crankshaft signal disk.
The content of S207 and the content of S104 are identical, and details are not described herein.
S208: crankshaft signal mill damage fault-signal is issued, so that engine is according to the crankshaft signal mill damage failure
Signal carries out degradation.
Wherein, the crankshaft signal mill damage fault-signal, comprising: the type of the crankshaft signal mill damage and the song
The position of axis signal mill damage；The crankshaft signal mill damage fault-signal and the degradation correspond.
S209: the fault-signal of camshaft-signal sensor failure is issued.
S210: the fault-signal of crankshaft sensor failure is issued.
The detection method of engine crankshaft signal panel abrasion provided by the embodiments of the present application, is obtaining crankshaft signal disk
On tooth rotational parameters value before, further includes: determine that engine is in steady state condition, in order to improve the tooth rotational parameters of acquisition
The accuracy of value, and then further increase the standard of the type of determining crankshaft signal mill damage and the position of crankshaft signal mill damage
True property.Moreover, in order to avoid the crankshaft sensor of failure or the camshaft-signal sensor of failure are to the bad shadows of parameter measurements
It rings, before obtaining crankshaft relevant parameter, it is also necessary to judge whether crankshaft sensor breaks down, in order to improve the tooth of acquisition
The accuracy of rotational parameters value, and then further increase the type and crankshaft signal mill damage of determining crankshaft signal mill damage
The accuracy of position.Alternatively, before obtaining camshaft relevant parameter, it is also necessary to judge whether camshaft-signal sensor occurs event
Barrier, in order to improve acquisition camshaft relevant parameter accuracy, and then further increase determining crankshaft signal mill damage
The accuracy of the position of type and crankshaft signal mill damage.
In addition, this method further includes the failure for issuing crankshaft signal mill damage fault-signal, issuing crankshaft sensor failure
Signal or the fault-signal for issuing camshaft-signal sensor failure, in order to take corresponding failure to answer according to corresponding fault-signal
To strategy, and then improve the efficiency of troubleshooting.
A kind of detection method of engine crankshaft signal panel abrasion provided based on the above embodiment, the embodiment of the present application is also
A kind of detection device of engine crankshaft signal panel abrasion is provided, is explained and illustrated below in conjunction with attached drawing.
Installation practice
Referring to Fig. 6, which is the structure of the detection device of engine crankshaft signal panel abrasion provided by the embodiments of the present application
Schematic diagram.
The detection device of engine crankshaft signal panel abrasion provided by the embodiments of the present application, comprising:
First obtains module 601, and the tooth for when engine is in steady state condition, obtaining on crankshaft signal disk rotates ginseng
Numerical value；
Second obtains module 602, for obtaining the difference between the tooth rotational parameters value and standard parameter value；The mark
Quasi- parameter value is the tooth rotational parameters value when crankshaft signal disk is not worn；
Judgment module 603, for judging whether the absolute value of the difference is not less than preset threshold；
First determining module 604, if the absolute value for the difference is not less than the preset threshold, according to the spy of crankshaft
Set, the feature tooth position of camshaft is set and the difference by tooth position for sign, determines the type and crankshaft signal mill of crankshaft signal mill damage
The position of damage；The camshaft is connect with the crankshaft signal disk.
As an implementation, the tooth rotational parameters value is the length of tooth rim phase；Wherein, the tooth rim phase is crankshaft
Time interval on signal panels between two neighboring tooth；
First determining module 604, specifically includes:
First judging submodule, for judging whether the difference is greater than 0；
First determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia；
It is set according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets；
Second determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth；
It is set according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets.
As another embodiment, the tooth rotational parameters value is the quantity of tooth rim phase；The tooth rim phase is crankshaft letter
Time interval on dialer between two neighboring tooth；
First determining module 604, specifically includes:
Second judgment submodule, for judging whether the difference is greater than 0；
Third determines submodule, if for the difference be greater than 0, it is determined that the type of crankshaft signal mill damage be it is multiple tooth,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets；
4th determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is hypodontia,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets.
As another embodiment, the tooth rotational parameters value is that tooth rim is long；Wherein, a length of crankshaft signal of the tooth rim
Arc length on disk between two neighboring tooth；
First determining module 604, specifically includes:
Third judging submodule, for judging whether the difference is greater than 0；
5th determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia
It sets；
6th determine submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage be it is multiple tooth,
And set according to the feature tooth position of the crankshaft and set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk
It sets.
As an implementation, in order to further increase the type and crankshaft signal mill of determining crankshaft signal mill damage
The accuracy of the position of damage, the detection device of engine crankshaft signal panel abrasion, further includes:
Second determining module, for determining that engine is in steady state condition.
As another embodiment, in order to improve the efficiency of troubleshooting, the inspection of engine crankshaft signal panel abrasion
Survey device, further includes:
Sending module, for issuing crankshaft signal mill damage fault-signal, so that engine is according to the crankshaft signal disk
Wear-out failure signal carries out degradation；Wherein, the crankshaft signal mill damage fault-signal, comprising: the crankshaft signal disk
The position of the type of abrasion and the crankshaft signal mill damage；The crankshaft signal mill damage fault-signal and the degradation
It corresponds.
The detection device of engine crankshaft signal panel abrasion provided by the embodiments of the present application, comprising: first obtains module
601, second module 602, judgment module 603, the first determining module 604 are obtained.Thus, which can be according to tooth rotational parameters
The difference of value and standard parameter value determines whether crankshaft signal disk wears.If the absolute value of the difference is not less than default threshold
Value, it is determined that crankshaft signal disk is worn.Moreover, the device can also be set according to the feature tooth position of crankshaft, the spy of camshaft
Sign tooth position set with the difference, determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage.Thus, the device
It can not only determine whether crankshaft signal disk wears, additionally it is possible to determine the type and crankshaft signal disk of crankshaft signal mill damage
The position of abrasion is conducive to quickly handle crankshaft signal mill damage.
A kind of detection method of engine crankshaft signal panel abrasion provided based on the above embodiment and a kind of engine
The detection device of crankshaft signal mill damage, the embodiment of the present application also provides a kind of electronic control units, below in conjunction with attached drawing
It is explained and illustrated.
Electronic control unit embodiment
Referring to Fig. 7, which is the structural schematic diagram of electronic control unit provided by the embodiments of the present application.
Electronic control unit provided by the embodiments of the present application, comprising: the detection device of engine crankshaft signal panel abrasion
701, moreover, the detection device 701 of engine crankshaft signal panel abrasion any can start to be provided by the above embodiment
The detection device of machine crankshaft signal mill damage.
Electronic control unit provided by the embodiments of the present application, due to including the detection dress of engine crankshaft signal panel abrasion
It sets, thus, it is possible to determine whether crankshaft signal disk wears according to the difference of tooth rotational parameters value and standard parameter value.If should
The absolute value of difference is not less than preset threshold, it is determined that crankshaft signal disk is worn.Moreover, the electronic control unit can also
Set according to the feature tooth position of crankshaft, the feature tooth position of camshaft is set and the difference, determine crankshaft signal mill damage type and
The position of crankshaft signal mill damage.Thus, which can not only determine whether crankshaft signal disk wears, also
It can determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage, be conducive to quickly handle crankshaft signal mill
Damage.
Claims (13)
1. a kind of detection method of engine crankshaft signal panel abrasion characterized by comprising
When engine is in steady state condition, the tooth rotational parameters value on crankshaft signal disk is obtained；
Obtain the difference between the tooth rotational parameters value and standard parameter value；The standard parameter value be when crankshaft signal disk not
Tooth rotational parameters value when abrasion；
Judge whether the absolute value of the difference is not less than preset threshold；
If the absolute value of the difference is not less than the preset threshold, set according to the feature tooth position of crankshaft, the feature tooth of camshaft
Position and the difference determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage；The camshaft and institute
State the connection of crankshaft signal disk.
2. the method according to claim 1, wherein the tooth rotational parameters value is the length of tooth rim phase；Wherein,
The tooth rim phase is the time interval on crankshaft signal disk between two neighboring tooth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal mill damage
Type and crankshaft signal mill damage position, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is hypodontia；It is set according to the feature tooth position of the crankshaft
It is set with the feature tooth position of the camshaft, determines the position of the crankshaft signal disk hypodontia；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth；It is set according to the feature tooth position of the crankshaft
It is set with the feature tooth position of the camshaft, determines the multiple tooth position of the crankshaft signal disk.
3. the method according to claim 1, wherein the tooth rotational parameters value is the quantity of tooth rim phase；It is described
The tooth rim phase is the time interval on crankshaft signal disk between two neighboring tooth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal mill damage
Type and crankshaft signal mill damage position, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth, and according to the feature tooth position of the crankshaft
It sets and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is hypodontia, and according to the feature tooth position of the crankshaft
It sets and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia.
4. the method according to claim 1, wherein the tooth rotational parameters value is that tooth rim is long；Wherein, the tooth
Arc length on Zhou Changwei crankshaft signal disk between two neighboring tooth；
The feature tooth position according to crankshaft is set, the feature tooth position of camshaft is set and the difference, determines crankshaft signal mill damage
Type and crankshaft signal mill damage position, specifically include:
Judge whether the difference is greater than 0；
If the difference is greater than 0, it is determined that the type of crankshaft signal mill damage is hypodontia, and according to the feature tooth position of the crankshaft
It sets and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia；
If the difference is less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth, and according to the feature tooth position of the crankshaft
It sets and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk.
5. the method according to claim 1, wherein the tooth rotational parameters value for obtaining tooth on crankshaft signal disk
Before, further includes:
Determine that engine is in steady state condition.
6. the method according to claim 1, wherein the type and crankshaft of the determining crankshaft signal mill damage are believed
After the position of dialer abrasion, further includes:
Crankshaft signal mill damage fault-signal is issued, so that engine carries out event according to the crankshaft signal mill damage fault-signal
Barrier degrades；Wherein, the crankshaft signal mill damage fault-signal, comprising: the type of the crankshaft signal mill damage and the song
The position of axis signal mill damage；The crankshaft signal mill damage fault-signal and the degradation correspond.
7. a kind of detection device of engine crankshaft signal panel abrasion characterized by comprising
First obtains module, for obtaining the tooth rotational parameters value on crankshaft signal disk when engine is in steady state condition；
Second obtains module, for obtaining the difference between the tooth rotational parameters value and standard parameter value；The standard parameter
Value is the tooth rotational parameters value when crankshaft signal disk is not worn；
Judgment module, for judging whether the absolute value of the difference is not less than preset threshold；
First determining module, if the absolute value for the difference is not less than the preset threshold, according to the feature tooth position of crankshaft
Set, the feature tooth position of camshaft is set and the difference, determine the type of crankshaft signal mill damage and the position of crankshaft signal mill damage
It sets；The camshaft is connect with the crankshaft signal disk.
8. device according to claim 7, which is characterized in that the tooth rotational parameters value is the length of tooth rim phase；Wherein,
The tooth rim phase is the time interval on crankshaft signal disk between two neighboring tooth；
First determining module, specifically includes:
First judging submodule, for judging whether the difference is greater than 0；
First determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia；According to
The feature tooth position of the crankshaft is set sets with the feature tooth position of the camshaft, determines the position of the crankshaft signal disk hypodontia；
Second determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth；According to
The feature tooth position of the crankshaft is set sets with the feature tooth position of the camshaft, determines the multiple tooth position of the crankshaft signal disk.
9. device according to claim 7, which is characterized in that the tooth rotational parameters value is the quantity of tooth rim phase；It is described
The tooth rim phase is the time interval on crankshaft signal disk between two neighboring tooth；
First determining module, specifically includes:
Second judgment submodule, for judging whether the difference is greater than 0；
Third determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is multiple tooth, and root
It sets according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk；
4th determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is hypodontia, and root
It sets according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia.
10. device according to claim 7, which is characterized in that the tooth rotational parameters value is that tooth rim is long；Wherein, described
Arc length on a length of crankshaft signal disk of tooth rim between two neighboring tooth；
First determining module, specifically includes:
Third judging submodule, for judging whether the difference is greater than 0；
5th determines submodule, if being greater than 0 for the difference, it is determined that the type of crankshaft signal mill damage is hypodontia, and root
It sets according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the position of the crankshaft signal disk hypodontia；
6th determines submodule, if for the difference less than 0, it is determined that the type of crankshaft signal mill damage is multiple tooth, and root
It sets according to the feature tooth position of the crankshaft and is set with the feature tooth position of the camshaft, determine the multiple tooth position of the crankshaft signal disk.
11. device according to claim 7, which is characterized in that further include:
Second determining module, for determining that engine is in steady state condition.
12. device according to claim 7, which is characterized in that further include:
Sending module, for issuing crankshaft signal mill damage fault-signal, so that engine is according to the crankshaft signal mill damage
Fault-signal carries out degradation；Wherein, the crankshaft signal mill damage fault-signal, comprising: the crankshaft signal mill damage
Type and the crankshaft signal mill damage position；The crankshaft signal mill damage fault-signal and the degradation are one by one
It is corresponding.
13. a kind of electronic control unit characterized by comprising described in any item engine crankshafts of claim 7-12
The detection device of signal mill damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445856.4A CN109538351A (en) | 2018-11-29 | 2018-11-29 | Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445856.4A CN109538351A (en) | 2018-11-29 | 2018-11-29 | Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109538351A true CN109538351A (en) | 2019-03-29 |
Family
ID=65851127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445856.4A Pending CN109538351A (en) | 2018-11-29 | 2018-11-29 | Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538351A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230540A (en) * | 2019-08-06 | 2019-09-13 | 潍柴动力股份有限公司 | A kind of fault determination method and device |
| CN111042940A (en) * | 2019-12-31 | 2020-04-21 | 潍柴动力股份有限公司 | Detection method, device, system and equipment of engine crankshaft |
| CN114922731A (en) * | 2022-05-09 | 2022-08-19 | 潍柴动力股份有限公司 | Method and device for detecting signal loss fault of crankshaft/camshaft and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277744A (en) * | 1995-04-06 | 1996-10-22 | Mitsubishi Electric Corp | Internal combustion engine controller |
| CN101358858A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | Detection device and method for crankshaft position sensor |
| JP2010229880A (en) * | 2009-03-26 | 2010-10-14 | Honda Motor Co Ltd | Internal combustion engine including rotation sensor |
| CN101968009A (en) * | 2010-09-29 | 2011-02-09 | 镇江恒驰科技有限公司 | Phase detection method of electric control engine |
| CN104481694A (en) * | 2014-11-18 | 2015-04-01 | 奇瑞汽车股份有限公司 | Self-diagnosis method for rotating speed of engine crankshaft |
| CN105526853A (en) * | 2014-10-16 | 2016-04-27 | 法国大陆汽车公司 | Method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft |
-
2018
- 2018-11-29 CN CN201811445856.4A patent/CN109538351A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08277744A (en) * | 1995-04-06 | 1996-10-22 | Mitsubishi Electric Corp | Internal combustion engine controller |
| CN101358858A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | Detection device and method for crankshaft position sensor |
| JP2010229880A (en) * | 2009-03-26 | 2010-10-14 | Honda Motor Co Ltd | Internal combustion engine including rotation sensor |
| CN101968009A (en) * | 2010-09-29 | 2011-02-09 | 镇江恒驰科技有限公司 | Phase detection method of electric control engine |
| CN105526853A (en) * | 2014-10-16 | 2016-04-27 | 法国大陆汽车公司 | Method for communicating a malfunction of a system for measuring speed and direction of rotation of a rotary shaft |
| CN104481694A (en) * | 2014-11-18 | 2015-04-01 | 奇瑞汽车股份有限公司 | Self-diagnosis method for rotating speed of engine crankshaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230540A (en) * | 2019-08-06 | 2019-09-13 | 潍柴动力股份有限公司 | A kind of fault determination method and device |
| CN111042940A (en) * | 2019-12-31 | 2020-04-21 | 潍柴动力股份有限公司 | Detection method, device, system and equipment of engine crankshaft |
| CN111042940B (en) * | 2019-12-31 | 2022-06-28 | 潍柴动力股份有限公司 | Detection method, device, system and equipment of engine crankshaft |
| CN114922731A (en) * | 2022-05-09 | 2022-08-19 | 潍柴动力股份有限公司 | Method and device for detecting signal loss fault of crankshaft/camshaft and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109538351A (en) | Detection method, device and the electronic control unit of engine crankshaft signal panel abrasion | |
| US20220341815A1 (en) | Apparatus and method for analysing the condition of a machine having a rotating part | |
| RU2449252C2 (en) | Detection method of damage to support rolling bearing of engine | |
| US4608650A (en) | Imbalance measuring system and method | |
| US7350405B2 (en) | Disturbance-resistant bumpless crankshaft position sensing | |
| EA201290660A1 (en) | APPARATUS FOR ANALYSIS OF THE CONDITION OF A MACHINE WHICH HAS A ROTATING PART | |
| EP0671616B1 (en) | Measuring reciprocating engine performance with a gated acceleration signal | |
| CN113358351B (en) | Rotating shaft end face torsional vibration extraction method and device based on photogrammetry | |
| US20170350919A1 (en) | Tachometer signal jitter reduction system and method | |
| EP2672240B1 (en) | Campbell diagram displays and methods and systems for implementing same | |
| US20110199285A1 (en) | Method and apparatus for waveform compression and display | |
| EP2657709A3 (en) | Detecting rotation of an encoder with short or missing teeth | |
| EP3055661A1 (en) | A method for determining current eccentricity of rotating rotor and method of diagnostics of eccentricity of rotating rotor | |
| CN109854375A (en) | A kind of pre- diagnostic method and device of Bearing Failure | |
| CN116907846B (en) | Bearing failure prediction system of gas turbine | |
| US20190195680A1 (en) | Abnormality detection device, difference vector display device, rotary machine system, abnormality detection method, and program | |
| CN109813929B (en) | Wind speed measuring method and system of wind driven generator | |
| CN112161742B (en) | Power sensor detection method, device, equipment and storage medium | |
| JP2006105146A (en) | Method for measuring rotational speed of crankshaft | |
| RU2506442C2 (en) | Method of determination of ice crankshaft angular position | |
| CN216485583U (en) | Image-text detection positioning device | |
| JP3997936B2 (en) | Rotational accuracy measuring method and rotational accuracy measuring device | |
| JP3348444B2 (en) | Parameter abnormal runout detection method | |
| CN111061444B (en) | Graphic display of discontinuous waveform data | |
| KR100268088B1 (en) | Abnormal state detection method for hall sensor on a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |
|
| RJ01 | Rejection of invention patent application after publication |