CN110242432A - A kind of detection method of vaporizer, device, equipment and engine - Google Patents
A kind of detection method of vaporizer, device, equipment and engine Download PDFInfo
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- CN110242432A CN110242432A CN201910581032.8A CN201910581032A CN110242432A CN 110242432 A CN110242432 A CN 110242432A CN 201910581032 A CN201910581032 A CN 201910581032A CN 110242432 A CN110242432 A CN 110242432A
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- vaporizer
- temperature
- testing result
- air inlet
- inlet pipe
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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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
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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)
Abstract
This application discloses a kind of detection method of vaporizer, device, equipment and engine, method includes: the temperature value obtained in in-engine air inlet pipe；The air inlet pipe is connected with the vaporizer, and the vaporizer gasify to liquefied natural gas after gaseous natural gas be output to the air inlet pipe；Determine temperature range locating for the temperature value；Based on the temperature range, the testing result of the vaporizer is generated, the testing result characterizes the malfunction of the vaporizer.It can be seen that, it is detected in the application by the temperature to the air inlet pipe after vaporizer, since LNG temperature is less than gaseous natural gas, therefore the temperature detection based on air inlet pipe can go out in air inlet pipe not vaporized liquefied natural gas whether occur in time, thus the malfunction of vaporizer is detected, detect that whether vaporizer the processing such as breaks down and need repairing, and ensures the safety of engine in time with this.
Description
Technical field
This application involves technical field of engines, in particular to a kind of detection method of vaporizer, device, equipment and start
Machine.
Background technique
Liquefied natural gas needs to be heated by vaporizer after releasing from gas tank, to form gaseous natural gas,
And when vaporizer failure, liquefied natural gas can not be heated gasification, and the liquified natural gas of low temperature is caused to enter engine
Fuel gas pipeline will cause the accidents such as fuel gas pipeline aging, gas leakage, influence engine health.
Therefore, a kind of technical solution that can be detected in time to the failure of vaporizer is needed.
Summary of the invention
In view of this, the detection method for being designed to provide a kind of vaporizer, device, equipment and the engine of the application,
To solve to need the technical issues of detecting the failure of vaporizer in time in the prior art.
This application provides a kind of detection methods of vaporizer, comprising:
Obtain the temperature value in in-engine air inlet pipe；The air inlet pipe is connected with the vaporizer, and the vapour
Change the gaseous natural gas after device gasifies to liquefied natural gas and is output to the air inlet pipe；
Determine temperature range locating for the temperature value；
Based on the temperature range, the testing result of the vaporizer is generated, the testing result characterizes the vaporizer
Malfunction.
The above method, it is preferred that be based on the temperature range, generate the testing result of the vaporizer, comprising:
If the temperature value is less than preset first limit value and is greater than preset second limit value, second limit value is less than
First limit value generates the first testing result and exports first testing result in the first way, the first detection knot
Fruit shows that the corresponding failure of first limit value occurs in the vaporizer；
If the temperature value is less than second limit value, generates the second testing result and export described the in a second manner
Two detections, second testing result show that the corresponding failure of the second limit value occurs in the vaporizer.
The above method, it is preferred that after determining temperature range locating for the temperature value, the method also includes:
Based on the temperature range, the torque of the engine is controlled.
The above method, it is preferred that described if the temperature value is less than first limit value and is greater than second limit value
Based on the testing result, the torque of the engine is controlled, comprising:
Based on the temperature value, determine that the limit of the engine turns round coefficient；
It is corresponding that limit torsion value and the limit torsion coefficient of the engine are set.
The above method, it is preferred that it is described to be based on the testing result if the temperature value is less than second limit value,
Control the torque of the engine, comprising:
Control the engine stop.
The above method, it is preferred that described to export first testing result in the first way, comprising:
First testing result is exported in a manner of light flashing.
The above method, it is preferred that export second detection in a second manner, comprising:
Second testing result is exported in a manner of sound transmission and/or in the way of light flashes.
Present invention also provides a kind of detection devices of vaporizer, comprising:
Temperature acquisition unit, for obtaining the temperature value in in-engine air inlet pipe；The air inlet pipe and the vaporization
Device is connected, and the vaporizer gasify to liquefied natural gas after gaseous natural gas be output to the air inlet pipe；
Temperature treating units, for determining temperature range locating for the temperature value；
Detection processing unit generates the testing result of the vaporizer, the detection knot for being based on the temperature range
Fruit characterizes the malfunction of the vaporizer.
Present invention also provides a kind of detection devices of vaporizer, comprising:
Temperature sensor is arranged in in-engine air inlet pipe, for obtaining the temperature value in the air inlet pipe, wherein
The air inlet pipe is connected with the vaporizer, and the gaseous natural gas that the vaporizer carries out gasification generation to liquefied natural gas is defeated
The air inlet pipe is arrived out；
Controller is connected with the temperature sensor, for determining temperature range locating for the temperature value, is based on institute
Temperature range is stated, the testing result of the vaporizer is generated, the testing result characterizes the malfunction of the vaporizer.
Above equipment, it is preferred that the controller includes:
Comparator, for judging that the size between the temperature value and preset first limit value and preset second limit value is closed
System, second limit value are less than first limit value, if the temperature value is less than first limit value and is greater than described second
Limit value triggers the first generator, if the temperature value is less than second limit value, triggers the second generator；
First generator, for generating the first testing result, first testing result shows that institute occurs in the vaporizer
State the corresponding failure of the first limit value；
Second generator, for generating the first testing result, second testing result shows that institute occurs in the vaporizer
State the corresponding failure of the second limit value.
Above equipment, it is preferred that the equipment further include:
First alarm, for exporting first testing result in the first way；
Second alarm, for exporting second testing result in a second manner.
Above equipment, preferred:
First alarm includes flash lamp；
Second alarm includes flash lamp and/or Audio Players.
Above equipment, it is preferred that the controller further include:
Component is set, if judging that the temperature value is less than first limit value and greater than described for the comparator
Second limit value is based on the temperature value, and the limit that the engine is found out in preset configuration form turns round coefficient, and institute is arranged
It is corresponding to state limit torsion value and the limit torsion coefficient of engine.
Above equipment, it is preferred that the controller further include:
Stop component, if judging that the temperature value is less than second limit value for the comparator, described in control
Engine stop.
Present invention also provides a kind of engines, comprising:
Air inlet pipe；
Vaporizer, the air inlet pipe are connected with the vaporizer, and the vaporizer is for carrying out gas to liquefied natural gas
Change, and the gaseous natural gas generated that gasifies is output to the air inlet pipe；
Temperature sensor, for obtaining the temperature value in the air inlet pipe；
ECU is based on the temperature range, generates the vaporizer for determining temperature range locating for the temperature value
Testing result, the testing result characterizes the malfunction of the vaporizer.
Above-mentioned engine, it is preferred that further include:
Alarm is connected with the ECU, the testing result generated for exporting the ECU.
Above-mentioned engine, it is preferred that the alarm includes:
Flash lamp and/or Audio Players.
As it can be seen from the above scheme detection method, device, equipment and the engine of a kind of vaporizer provided by the present application, lead to
It crosses and obtains in engine after the temperature value of air inlet pipe, determine the temperature range of the temperature value, and then generate corresponding detection knot
Fruit characterizes the malfunction of vaporizer with this.As it can be seen that being examined in the application by the temperature to the air inlet pipe after vaporizer
Survey, since LNG temperature is less than gaseous natural gas, can in time the temperature detection based on air inlet pipe go out into
Whether occur not vaporized liquefied natural gas in tracheae, thus detect the malfunction of vaporizer, is detected in time with this
Whether vaporizer the processing such as breaks down and needs repairing, and ensures the safety of engine.
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 embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart of the detection method for vaporizer that the embodiment of the present application one provides；
Fig. 2 is a kind of another flow chart of the detection method for vaporizer that the embodiment of the present application one provides；
Fig. 3 is a kind of structural schematic diagram of the detection device for vaporizer that the embodiment of the present application two provides；
Fig. 4 is a kind of structural schematic diagram of the detection device for vaporizer that the embodiment of the present application three provides；
Fig. 5-Fig. 7 is respectively the partial structure diagram of the embodiment of the present application three；
Fig. 8 is a kind of structural schematic diagram for engine that the embodiment of the present application four provides；
Fig. 9 is a kind of another structural schematic diagram for engine that the embodiment of the present application four provides；
Figure 10 is the example flow diagram of the embodiment of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
It is a kind of implementation flow chart of the detection method for vaporizer that the embodiment of the present application one provides, this implementation with reference to Fig. 1
Method in example is mainly used for whether breaking down to vaporizer and go out suitable for the engine for providing power by natural gas
Existing malfunction is detected in time.
Specifically, in the present embodiment, this method may comprise steps of:
Step 101: obtaining the temperature value in in-engine air inlet pipe.
Wherein, air inlet pipe is being connected between vaporizer and voltage-stablizer in engine, and the gas of gasification is heated in vaporizer
State natural gas enters voltage-stablizer and subsequent pipeline by air inlet pipe, provides power with burning for engine.
In the present embodiment, the temperature of air inlet pipe can be obtained with this by the way that temperature sensor is arranged in air inlet pipe
Value.
Step 102: temperature range locating for temperature value.
It wherein, can be by preparatory multiple temperature ranges and by temperature relatively come locating for temperature value in the present embodiment
Temperature range.For example, default 0 degree to 20 degree is a temperature range, presetting -3 degree to 0 degree is temperature range, etc.；
Or the default temperature range less than 0 degree, and the temperature range, etc. less than 3 degree in advance.
Step 103: being based on temperature range, generate the testing result of vaporizer.
Wherein, the malfunction of testing result characterization vaporizer.
Specifically, temperature range locating for temperature value is different, the corresponding testing result for generating vaporizer is different, thus characterizes
The malfunction of vaporizer out is different, operated normally such as lesser failure but remain to occurs in vaporizer, vaporizer occur it is larger
Failure but engine rotation, vaporizer can be supported entirely ineffective be unable to run, etc. occur.
As it can be seen from the above scheme a kind of detection method for vaporizer that the embodiment of the present application one provides, by being started
In machine after the temperature value of air inlet pipe, determines the temperature range of the temperature value, and then generate corresponding testing result, characterized with this
The malfunction of vaporizer.As it can be seen that being detected in the present embodiment by the temperature to the air inlet pipe after vaporizer, due to liquid
Change natural gas temperature and be less than gaseous natural gas, thus can in time the temperature detection based on air inlet pipe go out in air inlet pipe whether
There is not vaporized liquified natural gas, thus detects the malfunction of vaporizer, whether vaporizer is detected in time with this
It the processing such as breaks down and needs repairing, ensure the safety of engine.
In one implementation, the step 103 in the present embodiment is in the detection knot for generating vaporizer based on temperature range
When fruit, there may be following different situations:
If temperature value is less than preset first limit value and is greater than preset second limit value, the second limit value is less than the first limit
Value, i.e. temperature value are in less than the first limit value but are greater than the range of the second limit value, then generating the first testing result, and with first
Mode exports the first testing result to driver or staff, which shows that the first limit value pair occurs in vaporizer
The failure answered.
For example, when the temperature value of air inlet pipe is lower than the first limit value but is higher than the second limit value, in a manner of light flashing such as
The mode for dodging code lamp (flash lamp) flashing exports the first testing result, corresponding to remind vaporizer the first limit value occur to driver
Failure, it is proposed that in time maintenance.
And if temperature is less than the second limit value, the second limit value is less than the first limit value, that is to say, that the temperature of air inlet pipe
Value is in lower temperature range, generates the second testing result at this time, and exports in a second manner to driver or staff
Second testing result, second testing result show that the corresponding failure of the second limit value occurs in vaporizer.
For example, when intake manifold temperature value is lower than lower second limit value, it can be in a manner of sound transmission and/or light
The mode of flashing exports the second testing result, and such as triggering dodges code lamp and flashes and trigger alarm output alarm sound, to mention in time
The case where driver's vaporizer of waking up breaks down as failed, it is proposed that stop maintenance.
In one implementation, in the present embodiment after step 102, there can also be following steps, as shown in Figure 2:
Step 104: being based on temperature range, control the torque of engine.
Wherein, temperature range is different, controls the torque of engine in different ways.
It, specifically can be with when the temperature value of air inlet pipe is less than the first limit value in a step 102 in the present embodiment in a kind of situation
Step 104 is accomplished by the following way:
Firstly, being based on temperature value, determine that the limit of engine turns round coefficient, and then the limit torsion value and limit of setting engine are turned round
Coefficient is corresponding.
Wherein, limit turns round the proportionality coefficient that coefficient refers to limit the torsion value and current torque of setting, that is, the engine for needing to be arranged
Limit torsion value and the torque that currently operates of engine between ratio, such as limit 30% or 70% or other that torsion value is current torque
Ratio value.For example, there is the lower situation of temperature, at this time in the present embodiment when the temperature value of air inlet pipe is less than the first limit value
Vaporizer may have already appeared compared with glitch, such as intermittent operating, at this point, can started according to temperature value in the present embodiment
Find the corresponding limit of the temperature value in the configuration information of the default setting of machine and turn round coefficient (factor), such as 30%, 50%, 60%,
70% or 90% etc., later, the moment of torsion that limit is turned round engine under coefficient and current working is multiplied to torque is limited, i.e., limit is turned round
Value, to control the torque of engine in the operational process of engine not higher than the limit torsion value, further, export first
Testing result, to remind vaporizer to be likely to occur lesser failure, it is proposed that repair as early as possible, to protect the safety of engine.
In another case, when the temperature value of air inlet pipe is less than the second limit value in a step 102 in the present embodiment, specifically
Step 104 can be accomplished by the following way:
Control engine stop.
For example, the temperature value in the present embodiment in air inlet pipe it is lower and be lower than the second limit value when, there are the too low feelings of temperature
Condition, very likely occur at this time vaporizer largely failure or entirely ineffective situation, in order to protect engine and driving
The safety of member controls engine stop, further, the second testing result is exported, to remind vaporizer failure of removal occur.
It is a kind of structural schematic diagram of the detection device for vaporizer that the embodiment of the present application two provides, the device with reference to Fig. 3
Suitable for the engine that power is provided by natural gas, it is mainly used for the failure shape whether vaporizer is broken down and occurred
State is detected in time.
Specifically, in the present embodiment, the apparatus may include following functions units:
Temperature acquisition unit 301, for obtaining the temperature value in in-engine air inlet pipe.
Wherein, air inlet pipe is being connected between vaporizer and voltage-stablizer in engine, and the gas of gasification is heated in vaporizer
State natural gas enters voltage-stablizer and subsequent pipeline by air inlet pipe, provides power with burning for engine.
In the present embodiment, the temperature of air inlet pipe can be obtained with this by the way that temperature sensor is arranged in air inlet pipe
Value.
Temperature treating units 302, for temperature range locating for temperature value.
It wherein, can be by preparatory multiple temperature ranges and by temperature relatively come locating for temperature value in the present embodiment
Temperature range.For example, default 0 degree to 20 degree is a temperature range, presetting -3 degree to 0 degree is temperature range, etc.；
Or the default temperature range less than 0 degree, and the temperature range, etc. less than 3 degree in advance.
Detection processing unit 303 generates the testing result of vaporizer for being based on temperature range.
Wherein, the malfunction of testing result characterization vaporizer.
Specifically, temperature range locating for temperature value is different, the corresponding testing result for generating vaporizer is different, thus characterizes
The malfunction of vaporizer out is different, operated normally such as lesser failure but remain to occurs in vaporizer, vaporizer occur it is larger
Failure but engine rotation, vaporizer can be supported entirely ineffective be unable to run, etc. occur.
As it can be seen from the above scheme a kind of detection device for vaporizer that the embodiment of the present application two provides, by being started
In machine after the temperature value of air inlet pipe, determines the temperature range of the temperature value, and then generate corresponding testing result, characterized with this
The malfunction of vaporizer.As it can be seen that being detected in the present embodiment by the temperature to the air inlet pipe after vaporizer, due to liquid
Change natural gas temperature and be less than gaseous natural gas, thus can in time the temperature detection based on air inlet pipe go out in air inlet pipe whether
There is not vaporized liquefied natural gas, thus detects the malfunction of vaporizer, whether vaporizer is detected in time with this
It the processing such as breaks down and needs repairing, ensure the safety of engine.
In one implementation, detection processing unit 303 is based on temperature range, generates the testing result of vaporizer, has
Body can be accomplished by the following way:
If temperature value is less than preset first limit value and is greater than preset second limit value, the second limit value is less than the first limit
Value generates the first testing result and exports the first testing result in the first way, exports the first detection in a manner of light flashing
As a result, the first testing result shows that the corresponding failure of the first limit value occurs in vaporizer；
If temperature value generates the second testing result and in a second manner the second detection of output, less than the second limit value with sound
The mode for mode and/or the light flashing that sound is propagated exports the second testing result, and the second testing result shows that vaporizer occurs the
The corresponding failure of two limit values.
In addition, detection processing unit 303 is also used to control the torque of engine based on temperature range.
Specifically, detection processing unit 303 is based on temperature if temperature value is less than the first limit value but is greater than the second limit value
Value determines that the limit of engine turns round coefficient, it is corresponding that limit torsion value and the limit torsion coefficient of engine is arranged；
And if temperature value is less than the second limit value, detection processing unit 303 controls engine stop.
It is a kind of structural schematic diagram of the detection device for vaporizer that the embodiment of the present application three provides, this implementation with reference to Fig. 4
Equipment in example can be set in the engine for providing power by natural gas, be mainly used for whether breaking down to vaporizer
And the malfunction occurred is detected in time.
Specifically, in the present embodiment, which may include with flowering structure:
Temperature sensor 401, setting are specifically as follows in the tube wall of air inlet pipe or tube wall in in-engine air inlet pipe
On, it is mainly used for obtaining the temperature value in air inlet pipe.
Wherein, air inlet pipe is being connected between vaporizer and voltage-stablizer in engine, and the gas of gasification is heated in vaporizer
State natural gas enters voltage-stablizer and subsequent pipeline by air inlet pipe, provides power with burning for engine.
Controller 402 is connected with temperature sensor 401, for temperature range locating for temperature value, and based on temperature
Range is spent, the testing result of vaporizer is generated.
Wherein, the controller 402 in the present embodiment can be realized for in-engine ECU, specifically can be by more in advance
A temperature range and by temperature relatively come temperature range locating for temperature value.For example, default 0 degree to 20 degree is a temperature
Range is spent, presetting -3 degree to 0 degree is temperature range, etc.；Or the default temperature range less than 0 degree, and in advance less than 3
Temperature range of degree, etc..
And the malfunction of testing result characterization vaporizer.Specifically, temperature range locating for temperature value is different, it is corresponding to control
The testing result that device 402 processed generates vaporizer is different, and the malfunction of the vaporizer thus symbolized is different, as vaporizer occurs
Lesser failure but remain to operates normally, biggish failure occurs in vaporizer but engine rotation, vaporizer can be supported to occur
It is entirely ineffective to be unable to run, etc..
As it can be seen from the above scheme a kind of detection device for vaporizer that the embodiment of the present application three provides, by engine
Temperature sensor is set in interior air inlet pipe, and then after the temperature value of acquisition air inlet pipe, determines the temperature range of the temperature value, into
And corresponding testing result is generated, the malfunction of vaporizer is characterized with this.As it can be seen that by after to vaporizer in the present embodiment
The temperature of air inlet pipe detected, since LNG temperature is less than gaseous natural gas, can be based in time
The temperature detection of air inlet pipe goes out in air inlet pipe not vaporized liquified natural gas whether occur, thus detects the failure of vaporizer
State detects that whether vaporizer the processing such as breaks down and need repairing, and ensures the safety of engine with this in time.
In one implementation, the controller 402 in the present embodiment can specifically be realized by following construction package, such as
Shown in Fig. 5:
Comparator 501, it is therein for judging the size relation between temperature value and the first limit value and the second limit value, the
Two limit values are less than the first limit value, if temperature value is less than the first limit value and is greater than the second limit value, i.e. temperature value is in and is less than
First limit value but the range for being greater than the second limit value, then trigger the first generator 502, if temperature value less than the second limit value,
That is the temperature value of air inlet pipe is in lower temperature range, then the second generator 503 is triggered.
First generator 502, is connected with comparator 501, for generating the first testing result, the first testing result table
There is the corresponding failure of the first limit value in bright vaporizer.
Second generator 503, is connected with comparator 501, for generating the second testing result, the second testing result table
There is the corresponding failure of the second limit value in bright vaporizer.
Based on this, the equipment in the present embodiment can also include with flowering structure, as shown in Figure 6:
First alarm 403 is connected with the first generator 502, in the first way to driver or staff
Export the first testing result.
Wherein, the first alarm 403 can be flash lamp, such as the sudden strain of a muscle code lamp on independent sudden strain of a muscle code lamp or driving display screen
Deng being flashed on the specific region of display screen, to export the first testing result.For example, the temperature value in air inlet pipe is lower than first
When limit value, the first detection knot is exported in the way of dodging the flashing of code lamp or the flashing of display screen fixed area in a manner of light flashing
Fruit, to remind vaporizer the corresponding failure of the first limit value occur to driver, it is proposed that maintenance in time.
Second alarm 404 is connected with the second generator 503, in a second manner to driver or staff
Export the second testing result.
Wherein, the second alarm 404 can be the group of flash lamp or Audio Players or flash lamp and Audio Players
It closes, dodges code lamp or independent loudspeaker such as independent or drive the combination dodging code lamp and loudspeaker and being formed on display screen,
To export the second testing result.For example, when intake manifold temperature value is lower than lower second limit value, it can be with the side of sound transmission
Formula and/or the mode of light flashing, export the second testing result, and such as triggering dodges code lamp and flashes and trigger loudspeaker output alarm
Sound, to remind driver's vaporizer to break down such as the case where failure in time, it is proposed that stop maintenance.
It in one implementation, can also include with lower component, in Fig. 7 in the controller 402 in the present embodiment
It is shown:
Component 504 is set, if judging temperature value less than the first limit value for comparator 501 and being greater than the second limit value,
Based on temperature value, the limit that the engine is found out in preset configuration form turns round coefficient, and the limit torsion value of engine is arranged
It is corresponding that coefficient is turned round with limit.
Wherein, limit turns round the proportionality coefficient that coefficient refers to limit the torsion value and current torque of setting, that is, the engine for needing to be arranged
Limit torsion value and the torque that currently operates of engine between ratio, such as limit 30% or 70% or other that torsion value is current torque
Ratio value.For example, there is the lower situation of temperature, at this time in the present embodiment when the temperature value of air inlet pipe is less than the first limit value
Vaporizer may have already appeared compared with glitch, such as intermittent operating, at this point, component 504 is arranged in the present embodiment can basis
Temperature value finds the corresponding limit of the temperature value in the configuration form of the default setting of engine and turns round coefficient (factor), such as 30%,
50%, 60%, 70% or 90% etc., later, the moment of torsion that limit is turned round engine under coefficient and current working is multiplied to be turned round to limitation
Square, i.e. limit torsion value, so that the torque for controlling engine is not higher than the limit torsion value in the operational process of engine, further,
The first testing result is exported, to remind vaporizer to be likely to occur lesser failure, it is proposed that repair as early as possible, to protect the peace of engine
Entirely.
In another case, can also include with lower component in the controller 402 in the present embodiment:
Stop component 505, if judging that temperature value less than the second limit value, controls engine stop for comparator 501.
For example, the temperature value in the present embodiment in air inlet pipe it is lower and be lower than the second limit value when, there are the too low feelings of temperature
Condition, very likely occur at this time vaporizer largely failure or entirely ineffective situation, in order to protect engine and driving
The safety of member stops component 205 and controls engine stop, further, the second testing result is exported, to remind vaporizer to occur
Failure of removal.
With reference to Fig. 8, for a kind of structural schematic diagram for engine that the embodiment of the present application four provides, which can be logical
It crosses natural gas and the engine of power is provided, be mainly used for the malfunction whether vaporizer is broken down and occurred and carry out in time
Detection.
Specifically, in the present embodiment, which may include with flowering structure:
Air inlet pipe 801；
Vaporizer 802, vaporizer 802 are connected with air inlet pipe 801, and vaporizer 802 is for carrying out gas to liquefied natural gas
Change, and the gaseous natural gas generated that gasifies is output to air inlet pipe 801；
Temperature sensor 803, for obtaining the temperature value in air inlet pipe 801.
Wherein, air inlet pipe 801 is being connected between vaporizer 802 and voltage-stablizer in engine, is heated in vaporizer 802
The gaseous natural gas of gasification enters voltage-stablizer and subsequent pipeline by air inlet pipe 801, provides power with burning for engine.
In the present embodiment, air inlet pipe can be obtained with this by the way that temperature sensor 803 is arranged in air inlet pipe 801
801 temperature value.
ECU804 is based on temperature range, generates the detection knot of vaporizer for temperature range locating for temperature value
Fruit.
Wherein, ECU804 can be by preparatory multiple temperature ranges and by temperature relatively come temperature in the present embodiment
The locating temperature range of value.For example, default 0 degree to 20 degree is a temperature range, presetting -30 degree to 0 degree is a temperature model
It encloses, presetting -60 degree to -30 degree is temperature range, etc.；Or the default temperature range less than 0 degree, and be less than in advance-
30 degree of temperature range, etc..
And the malfunction of testing result characterization vaporizer.Specifically, temperature range locating for temperature value is different, it is corresponding raw
Different at the testing result of vaporizer, the malfunction of the vaporizer thus symbolized is different, as lesser event occurs in vaporizer
Hinder but remain to normal operation, biggish failure occurs in vaporizer but can support that engine rotation, vaporizer occur and is entirely ineffective
Be unable to run, etc..
As it can be seen from the above scheme a kind of engine that the embodiment of the present application four provides, by obtaining air inlet pipe in engine
Temperature value after, determine the temperature range of the temperature value, and then generate corresponding testing result, with this characterize vaporizer therefore
Barrier state.As it can be seen that being detected in the present embodiment by the temperature to the air inlet pipe after vaporizer, due to liquefied natural gas temperature
Whether degree is less than gaseous natural gas, therefore the temperature detection based on air inlet pipe can go out in air inlet pipe to occur not by gas in time
Thus the liquified natural gas of change detects the malfunction of vaporizer, detect whether vaporizer breaks down simultaneously in time with this
The processing such as need repairing, and ensures the safety of engine.
In one implementation, can also include with flowering structure, as shown in Figure 9 in the engine in the present embodiment:
Alarm 805, is connected with ECU804, for exporting the testing result of ECU804 generation.
Specifically, judging that temperature value is less than preset first limit value in ECU, the first testing result, the first inspection are generated
It surveys the result shows that the corresponding failure of the first limit value occurs in vaporizer；Correspondingly, the first inspection is exported in alarm 805 in the first way
It surveys as a result, as exported the first testing result in the way of light flashing by flash lamp
Judge that temperature value is less than preset second limit value in ECU, the second limit value generates the second inspection less than the first limit value
It surveys as a result, the second testing result shows that the corresponding failure of the second limit value occurs in vaporizer.Correspondingly, with second in alarm 805
Mode exports the second detection, such as using the combination of flash lamp and Audio Players in the way of sound transmission and/or light flashing
Mode export the second testing result.
In addition, ECU804 is also based on temperature range, the torque of engine is controlled.
Specifically, ECU804 is based on temperature value if temperature value is less than the first limit value, determine that the limit of engine turns round coefficient,
It is corresponding that limit torsion value and the limit torsion coefficient of engine are set；
And if temperature value is less than the second limitation, ECU804 controls engine stop.
Specifically, being illustrated in the state of difference to the specific implementation of this case with engine below:
In the practical application of engine, liquefied natural gas released from gas tank after be liquid, need by vaporizer
Heated into gaseous state, but when the problems such as vaporizer breaking down, liquefied natural gas enters engine gas pipeline, can make
At accidents such as fuel gas pipeline aging, gas leakages, in order to avoid because of temperature in air inlet pipeline caused by vaporizer failure in this case
Too low situation, by before voltage-stablizer add temperature sensor for example natural gas gas tank temperature sensor (for temperature measure) and
Control strategy is monitored vaporization, alarms, limiting the measures such as torsion, shutdown.
Specifically, shown in control flow chart as shown in Figure 10:
In this example, the first step adds temperature sensing in the air inlet pipe after vaporizer, before voltage-stablizer or on tube wall
Device obtains temperature signal by temperature sensor；Second step, whether detection temperature is normal or exceeds limit value；Third step works as temperature
When degree is lower than limit value 1, limit is found according to temperature and turns round the factor, it is multiplied to limit that limit turns round the moment of torsion under the factor and engine current working
Torque processed to control engine torque, and quotes the low warning message for haveing 1 failure of limit value of intake air temperature, and by dodging code
Lamp prompt driver repairs；4th step, when the temperature is too low, parking (stop liquefied natural gas output, or enter vaporizer)
And quote the low warning message for haveing 2 failure of limit value of intake air temperature.
As it can be seen that in this example, by air inlet pipeline mounting temperature sensor carry out monitoring temperature, and then temperature compared with
Limit torsion coefficient is calculated by temperature when low and carries out limit torsion, it is smaller to turn round coefficient for more lower bound, and directly stops when the temperature is too low.Moreover,
Can be easy to accomplish by way of common sensor realization is installed and judges complex parts failure in this example, save cost.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Detection method, device, equipment and the engine of a kind of vaporizer provided herein have been carried out in detail above
It introduces, the foregoing description of the disclosed embodiments, professional and technical personnel in the field is made to can be realized or use the application.To this
A variety of modifications of a little 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 application.Therefore, the application will not
It can be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed in this article
Widest scope.
Claims (13)
1. a kind of detection method of vaporizer characterized by comprising
Obtain the temperature value in in-engine air inlet pipe；The air inlet pipe is connected with the vaporizer, and the vaporizer
Gaseous natural gas after gasifying to liquefied natural gas is output to the air inlet pipe；
Determine temperature range locating for the temperature value；
Based on the temperature range, the testing result of the vaporizer is generated, the testing result characterizes the event of the vaporizer
Barrier state.
2. generating the inspection of the vaporizer the method according to claim 1, wherein being based on the temperature range
Survey result, comprising:
If the temperature value is less than preset first limit value and is greater than preset second limit value, second limit value is less than described
First limit value generates the first testing result and exports first testing result, the first testing result table in the first way
There is the corresponding failure of first limit value in the bright vaporizer；
If the temperature value is less than second limit value, generates the second testing result and export second inspection in a second manner
It surveys, second testing result shows that the corresponding failure of the second limit value occurs in the vaporizer.
3. method according to claim 1 or 2, which is characterized in that determine temperature range locating for the temperature value it
Afterwards, the method also includes:
Based on the temperature range, the torque of the engine is controlled.
4. according to the method described in claim 3, it is characterized in that, if the temperature value is less than first limit value and is greater than
Second limit value, it is described to be based on the testing result, control the torque of the engine, comprising:
Based on the temperature value, determine that the limit of the engine turns round coefficient；
It is corresponding that limit torsion value and the limit torsion coefficient of the engine are set.
5. according to the method described in claim 3, it is characterized in that, if the temperature value be less than second limit value, it is described
Based on the testing result, the torque of the engine is controlled, comprising:
Control the engine stop.
6. according to the method described in claim 2, it is characterized in that, described export first testing result in the first way,
Include:
First testing result is exported in a manner of light flashing.
7. according to the method described in claim 2, it is characterized in that, exporting second detection in a second manner, comprising:
Second testing result is exported in a manner of sound transmission and/or in the way of light flashes.
8. a kind of detection device of vaporizer characterized by comprising
Temperature acquisition unit, for obtaining the temperature value in in-engine air inlet pipe；The air inlet pipe and the vaporizer phase
Connection, and the vaporizer gasify to liquefied natural gas after gaseous natural gas be output to the air inlet pipe；
Temperature treating units, for determining temperature range locating for the temperature value；
Detection processing unit generates the testing result of the vaporizer, the testing result table for being based on the temperature range
Levy the malfunction of the vaporizer.
9. a kind of detection device of vaporizer characterized by comprising
Temperature sensor is arranged in in-engine air inlet pipe, for obtaining the temperature value in the air inlet pipe, wherein described
Air inlet pipe is connected with the vaporizer, and the gaseous natural gas that the vaporizer carries out gasification generation to liquefied natural gas is output to
The air inlet pipe；
Controller is connected with the temperature sensor, for determining temperature range locating for the temperature value, is based on the temperature
Range is spent, generates the testing result of the vaporizer, the testing result characterizes the malfunction of the vaporizer.
10. equipment according to claim 9, which is characterized in that the controller includes:
Comparator, for judging the size relation between the temperature value and preset first limit value and preset second limit value,
Second limit value is less than first limit value, if the temperature value is less than first limit value and is greater than second limit
Value triggers the first generator, if the temperature value is less than second limit value, triggers the second generator；
First generator, for generating the first testing result, first testing result shows that the vaporizer occurs described the
The corresponding failure of one limit value；
Second generator, for generating the first testing result, second testing result shows that the vaporizer occurs described the
The corresponding failure of two limit values.
11. equipment according to claim 10, which is characterized in that the equipment further include:
First alarm, for exporting first testing result in the first way；
Second alarm, for exporting second testing result in a second manner.
12. a kind of engine characterized by comprising
Air inlet pipe；
Vaporizer, the air inlet pipe are connected with the vaporizer, and the vaporizer is used to gasify to liquefied natural gas, and
The gaseous natural gas that gasification generates is output to the air inlet pipe；
Temperature sensor, for obtaining the temperature value in the air inlet pipe；
ECU is based on the temperature range, generates the inspection of the vaporizer for determining temperature range locating for the temperature value
It surveys as a result, the testing result characterizes the malfunction of the vaporizer.
13. engine according to claim 12, which is characterized in that further include:
Alarm is connected with the ECU, the testing result generated for exporting the ECU.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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