CN106567766A - Method and device for detecting in-use conformity - Google Patents
Method and device for detecting in-use conformity Download PDFInfo
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- CN106567766A CN106567766A CN201610780880.8A CN201610780880A CN106567766A CN 106567766 A CN106567766 A CN 106567766A CN 201610780880 A CN201610780880 A CN 201610780880A CN 106567766 A CN106567766 A CN 106567766A
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- 238000000034 method Methods 0.000 title claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 238000004422 calculation algorithm Methods 0.000 claims description 31
- 238000004364 calculation method Methods 0.000 claims 1
- 230000008676 import Effects 0.000 abstract description 9
- 238000012356 Product development Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 28
- 230000008569 process Effects 0.000 description 7
- 230000008450 motivation Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0037—NOx
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention provides a method and device for detecting in-use conformity. The method for detecting the in-use conformity can be applied to vehicle-mounted detection devices of an in-use heavy car, such as an electric control engine of the heavy car. In this way, import vehicle-mounted discharge equipment does not need to be installed for the in-use heavy car. The method for detecting the in-use conformity can also be applied to the electric control engine of each in-use heavy car, so each in-use heavy car can become a detection object, and the product development duration can be shortened. Further, according to the invention, various types of information of the in-use heavy car in actual running are used. For example, at least engine running information, fuel consumption, gas discharge information and whole-car running information are used to obtain whole-car NOx discharge results. Hence, the obtained whole-car NOx discharge results can cover whole-car use conditions of the in-use heavy car and can reflect real gas discharge situations of the heavy car on real roads.
Description
Technical field
The present invention relates to using accordance processing technology field, more particularly, it relates to one kind is with accordance detection side
Method and device.
Background technology
From the beginning of the automobile emissions standards of implementation of China first stage in 2000, automobile emissions standards are increasingly strict, to motor-driven
The control dynamics of car pollution are progressively increased.In the key content for accordance being vehicle emission standards, from the beginning of fourth stage
Automobile emissions standards will be implemented in being checked with accordance to heavy goods vehicles.
Heavy goods vehicles are implemented at present be with the mode of accordance inspection：Identical engine pedestal is checked and approved using with pattern
Test, need during test by the engine with heavy goods vehicles and emission control part from moving on to stand with pulling down in heavy goods vehicles
On, it is to be tested finish after put in back with car again, such method of testing operating difficulties and with high costs, and test knot
Fruit cannot truly reflect gas emission status of the heavy goods vehicles on real road；Or the DB11 965-2013 put into effect in Beijing
《Heavy-duty car tailpipe emission limits value and measuring method》Afterwards, the vehicle-mounted discharge equipment of import can be filled onboard,
Carried out being detected with accordance with the vehicle-mounted discharge equipment using import, but the building block of the vehicle-mounted discharge equipment of import is multiple
Miscellaneous and costliness, product development cycle length and is difficult to be covered in the car load applying working condition of heavy goods vehicles.
The content of the invention
In view of this, it is an object of the invention to provide one kind is using accordance detection method, for making the car load NOx for obtaining
Emission result can be covered in the gas with the car load applying working condition and true reflection heavy goods vehicles of heavy goods vehicles on real road
Emission status.The present invention also provide it is a kind of be applied in the vehicle-mounted detection apparatus with heavy goods vehicles, with save install import it is vehicle-mounted
Exhaust apparatus.
To achieve these goals, the present invention provides following technical scheme：
The present invention provides one kind and is using accordance detection method, methods described to be applied to be filled in the vehicle-mounted detection with heavy goods vehicles
In putting, methods described includes：
The air inflow of engine is obtained, and the air inflow according to engine and fuel consumption calculate motor instant discharge
Flow；
By obtaining gas emission information with the NOx sensor in heavy goods vehicles installed in described；
According to the gas emission information, the motor instant emission flow, other operation informations of engine and whole
Car operation information, obtains described in the car load NOx emission result with heavy goods vehicles.
Preferably, methods described also includes：The car load NOx emission result and default engine torque limit are judged into bar
Part is compared, to obtain torque limit state of value；
The torque limit state of value is sent to controller, so that the controller is based on the torque limit state of value
Control engine.
Preferably, the air inflow for obtaining engine includes：By installed in described with the air inlet mould in heavy goods vehicles
Type or intake flow sensor obtain the air inflow.
Preferably, it is described according to the gas emission information, the motor instant emission flow, engine other fortune
Row information and car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles, including：
According to the gas emission information, the mass flow of NOx emission is obtained；
According to the motor instant emission flow, the mass flow of the NOx emission, the engine other operation
Information and the car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles.
Preferably, it is described according to the motor instant emission flow, the mass flow of the NOx emission, described start
Other operation informations of machine and the car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles, including：
According to the motor instant emission flow, the mass flow of the NOx emission, the engine other operation
Information and the car load operation information, by the work(base window technique or region method up to standard or according to making by oneself that user's request is arranged
Adopted algorithm is calculating the car load NOx emission result；
Or
The custom algorithm arranged by the work(base window technique, region method up to standard and according to user's request is calculated respectively
The corresponding car load NOx emission result, and by the alternative pack in the vehicle-mounted detection apparatus from the work(base window technique,
One is chosen in the car load NOx emission result that region method up to standard and the custom algorithm arranged according to user's request are calculated
Car load NOx emission result is exported.
The present invention provides a kind of vehicle-mounted detection apparatus, and the vehicle-mounted detection apparatus are arranged on in heavy goods vehicles, the dress
Put including：
Emission flow computing unit, for calculating motor instant discharge according to the air inflow of engine and fuel consumption
Flow；
Emission result computing unit, for according to gas emission information, the motor instant emission flow, engine
Other operation informations and car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles, wherein gas row
Information is put by being obtained with the NOx sensor in heavy goods vehicles installed in described.
Preferably, described device also includes：Comparing unit, for by the car load NOx emission result and default engine
Torque limit Rule of judgment is compared, to obtain torque limit state of value；
Transmitting element, for the torque limit state of value to be sent to controller, so that the controller is based on described
Torque limit state of value controls engine.
Preferably, the air inflow of the engine by installed in described with the intake airflow dynamics model in heavy goods vehicles or air inlet
Flow sensor is obtained.
Preferably, the emission result computing unit includes：First computation subunit, for being believed according to gas discharge
Breath, obtains the mass flow of NOx emission；
Second computation subunit, for according to the motor instant emission flow, the mass flow of the NOx emission,
Other operation informations of the engine and the car load operation information, obtain the car load NOx emission with heavy goods vehicles and tie
Really.
Preferably, second computation subunit, for according to the motor instant emission flow, the NOx emission
Mass flow, other operation informations of the engine and the car load operation information, by the work(base window technique or area
Domain method up to standard or the custom algorithm that arranged according to user's request are calculating the car load NOx emission result；
Or
Second computation subunit, for by the quality stream of the motor instant emission flow, the NOx emission
Amount, other operation informations of the engine and the car load operation information as the |input paramete, by the work(base window
Mouth method, region method up to standard and the custom algorithm arranged according to user's request calculate respectively the corresponding car load NOx emission
As a result the car load NOx emission result is obtained by the computational algorithm；
The vehicle-mounted detection apparatus also include：Alternative pack, for from the work(base window technique, region method up to standard and according to
A car load NOx emission result is chosen in the car load NOx emission result that the custom algorithm that user's request is arranged is calculated
Output.
Compared with prior art, advantages of the present invention is as follows：
What above-mentioned technical proposal was provided can apply to be filled in the vehicle-mounted detection with heavy goods vehicles with accordance detection method
In putting, such as in the electric-control motor with heavy goods vehicles, so set in the vehicle-mounted discharge that installation import is may dispense with heavy goods vehicles
It is standby, and can will be applied to each in the electric-control motor with heavy goods vehicles with accordance detection method so that each
Become detection object with heavy goods vehicles, to shorten product development cycle.What further the present invention was provided is using accordance detection method
With in the various information with heavy goods vehicles in actual motion, operation information, fuel consumption such as at least with engine, gas
Emission information and car load operation information are obtaining car load NOx emission result, so as to get car load NOx emission result can be covered in
With the gas emission status of the car load applying working condition and true reflection heavy goods vehicles of heavy goods vehicles on real road.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart with accordance detection method provided in an embodiment of the present invention；
Fig. 2 is another kind of flow chart with accordance detection method provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of vehicle-mounted detection apparatus provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of vehicle-mounted detection apparatus place provided in an embodiment of the present invention system；
Fig. 5 is another kind of structural representation of vehicle-mounted detection apparatus provided in an embodiment of the present invention；
Fig. 6 is the operating diagram of vehicle-mounted detection apparatus provided in an embodiment of the present invention.
Specific embodiment
It is provided in an embodiment of the present invention with accordance detection method and device, by with heavy goods vehicles in actual motion
Various information, the operation information, fuel consumption, gas emission information and car load operation information such as at least with engine come
Obtain car load NOx emission result, so as to get car load NOx emission result can be covered in the car load applying working condition of heavy goods vehicles with
And gas emission status of the true reflection heavy goods vehicles on real road.And replace the car of import by vehicle-mounted detection apparatus
Exhaust apparatus is carried, is saved with the vehicle-mounted discharge equipment that import is installed in heavy goods vehicles, this is thus installed in each car
The vehicle-mounted detection apparatus that bright embodiment is provided so that each is becoming detection object with heavy goods vehicles, to shorten product development cycle.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the flow chart with accordance detection method provided in an embodiment of the present invention is it illustrates, is applied to
In the vehicle-mounted detection apparatus with heavy goods vehicles, may comprise steps of：
101：The air inflow of engine is obtained, and the air inflow according to engine and fuel consumption calculate motor instant
Emission flow.Wherein, the air inflow of engine can be by being arranged on the intake airflow dynamics model or near term traffic flows in heavy goods vehicles
Sensor is obtained, and fuel consumption can be from CAN (Controller Area Network, the controller local area network of engine
Network) obtain in bus, and then just motor instant discharge stream can be calculated according to the air inflow of engine and fuel consumption
Amount.
102：Gas emission information is being obtained by being arranged on the NOx sensor in heavy goods vehicles.In the embodiment of the present invention
In, NOx sensor is located in SCR (Selective Catalytic Reduction, the SCR with heavy goods vehicles
Method) in after-treatment system, gas emission information can be got by NOx sensor, wherein gas emission information at least includes：
NOx concentration.
103：Believed according to the operation of gas emission information, motor instant emission flow, the other information of engine and car load
Breath, obtains in the car load NOx emission result with heavy goods vehicles.
The other information of wherein engine is the information in addition to motor instant emission flow, equally can be at least through
Obtaining, the other information of such as engine at least includes the CAN and other sensors of engine：Obtained by temperature sensor
The water temperature of the engine for obtaining, the friction torque, rate of load condensate and the reference torque that are obtained by the CAN of engine.Car load runs
Information then can diagnose CAN to obtain by car load, such as diagnose CAN at least through car load to obtain speed expression
The information of car load running status.
It is above-mentioned to obtain in the car load NOx emission result with heavy goods vehicles, arranging using gas emission information, motor instant
The amount of releasing, the other information of engine and car load operation information, and these information can be covered in and use process with heavy goods vehicles
In car load applying working condition, therefore the car load NOx emission result for obtaining can be truly reflected in heavy goods vehicles on real road
Emission status.
In embodiments of the present invention, obtain can be in the process of the car load NOx emission result with heavy goods vehicles：First, root
The mass flow of NOx emission is obtained according to gas emission information, the wherein mass flow of NOx emission can be according to formula NOxflow=
Exflow/3600*1000/ρ*CNOx*Qi*KH*10-6Obtain, NOxflowFor the mass flow of NOx emission, unit is g/s, Exflow
For exhaust gas flow, unit is kg/h, and ρ is waste gas density, and unit is kg/m3, CNOxFor NOx concentration, unit is ppm, QiFor NOx
Density, unit is g/L, KHFor the humidity correction factor of NOx.
Secondly, according to motor instant emission flow, the mass flow of NOx emission, other operation informations of engine and
Car load operation information, obtains in the car load NOx emission result with heavy goods vehicles, and the mode for obtaining car load NOx emission result can be with
It is any one algorithm by existing computational algorithm, such as by work(base window technique or NTE, (Not-To-Exceed, region reaches
Mark) method to be calculating.
Wherein work(base window technique is to check and approve meeting for brake specific exhaust emission by relatively more each work(base window brake specific exhaust emission and engine type
Property evaluate vehicle discharge method.The size of work(base window is that engine ETC circulates work(, and according to sampling time sequence each is accumulated
The instantaneous work(of sampled point reaches work(base window, calculates the average specific discharge value of all sampled points in work(base window, rolling average meter
Calculate work(base window to terminate to all sampled points, obtain a series of work(base window average specific discharge values, work(base window movement interval 1
Second.Work(base window brake specific exhaust emission is then the ratio of work(base window intrinsic motivation NOx emission gross mass and window internal strength.Corresponding work(base
Window mean power percentage is the percentage of the peak power that work(base window intrinsic motivation mean power accounts for the engine.
NTE methods are the methods that vehicle discharge is evaluated by NTE events percent of pass.In engine test bench characteristic curve map,
Build by engine torque (Ttq) curve, engine n15 rotating speeds etc. rotating speed line, 30% maximum constant power curve and 30%
The inner sealing region that the torque curves such as maximum are constituted, by continuous 30 seconds of engine operating condition point and the above event work in the region is fallen into
Condition fragment, referred to as one NTE event.And the ratio that the NOx emission gross mass in NTE events is done work with NTE events intrinsic motivation
Referred to as NTE events brake specific exhaust emission.
Or car load NOx emission result can be calculated according to the custom algorithm that user's request is arranged.Such as specific
In speed section, such as urban conditions are more than in 0 to 50km/h (kilometer per hour), suburbs operating mode in 50 to 75km/h, high-speed working condition
Car load NOx emission result under 75km/h, or in certain circumstances, such as car load NOx emission of the environment temperature under subzero 7 degree
As a result, i.e., user can set varying environment, speed etc. with heavy goods vehicles place application scenarios, and then calculate under this application scenarios
Car load NOx emission result.
Of course for different demands are met, can also arrange by above-mentioned work(base window technique, NTE methods and according to user's request
Custom algorithm be integrated in same vehicle-mounted detection apparatus, calculate corresponding car load NOx respectively by these three algorithms
Emission result, and by the alternative pack in vehicle-mounted detection apparatus from work(base window technique, region method up to standard and according to user's request
A car load NOx emission result output is chosen in the car load NOx emission result that the custom algorithm of setting is calculated.
After car load NOx emission result is obtained, car load NOx emission result can also be included in operation interface, so that
Can be changed according to car load NOx emission result with heavy goods vehicles in the human pilot with heavy goods vehicles or other staff
Operate and to being improved with heavy goods vehicles, to meet the requirement of automobile emissions standards.
Knowable to above-mentioned technical proposal, it is provided in an embodiment of the present invention with accordance detection method can apply to
In the vehicle-mounted detection apparatus of heavy goods vehicles, such as in the electric-control motor with heavy goods vehicles, so peace is being may dispense with heavy goods vehicles
The vehicle-mounted discharge equipment of mouth is put into, and can will be applied to each in automatically controlled with heavy goods vehicles with accordance detection method
In motivation so that each is becoming detection object with heavy goods vehicles, to shorten product development cycle.Further the present invention provide
With accordance detection method so that in the various information with heavy goods vehicles in actual motion, the such as operation at least with engine is believed
Breath, fuel consumption, gas emission information and car load operation information are obtaining car load NOx emission result, so as to get car load NOx
Emission result can be covered in the gas with the car load applying working condition and true reflection heavy goods vehicles of heavy goods vehicles on real road
Emission status.
It is provided in an embodiment of the present invention with accordance detection method can with according to the car load NOx emission result that obtain,
Engine is controlled, as shown in Fig. 2 it illustrates provided in an embodiment of the present invention another with accordance detection method
Flow chart is planted, can also be comprised the following steps on the basis of Fig. 1：
104：Car load NOx emission result is compared with default engine torque limit value Rule of judgment, to be turned round
Square limits state of value.
105：Torque limit state of value is sent to controller, so that controller is started based on the control of torque limit state of value
Machine.
Wherein it is by the purpose that car load NOx emission result is compared with default engine torque limit value Rule of judgment：
Judge whether the corresponding torque limit state of value of current car load NOx emission result meets the requirement of automobile emissions standards, to obtain
Meet the torque limit state of value of the requirement of automobile emissions standards, such controller can just be based on and meet automobile emissions standards
The torque limit state of value of requirement is controlling engine.
Fig. 3 is referred to, a kind of structural representation of vehicle-mounted detection apparatus provided in an embodiment of the present invention is it illustrates, at this
In inventive embodiments, the vehicle-mounted detection apparatus shown in Fig. 3 may apply in system shown in Figure 4, shown in Fig. 4 with accordance
In the system basic framework that detection is realized, vehicle-mounted detection apparatus are concrete implementation device, and certainly it can also be integrated in and start
In the ECU (Electronic Control Unit, electronic control unit) of machine, on the basis of using SCR aftertreatment system,
Using the NOx sensor in SCR aftertreatment system, temperature sensor, engine CAN bus (the Engine CAN in Fig. 4) and
The information that car load diagnosis CAN (the Diagnostic CAN in Fig. 4) is obtained, the such as rate of load condensate of engine, friction torque, ginseng
Moment of torsion, speed, water temperature, fuel consumption etc. are examined, car load NOx emission result is obtained by vehicle-mounted detection apparatus.
Specifically, the vehicle-mounted detection apparatus shown in Fig. 3 include：The present invention provides a kind of vehicle-mounted detection apparatus, vehicle-mounted detection
Device is arranged on in heavy goods vehicles, and device includes：Emission flow computing unit 11 and emission result computing unit 12.
Emission flow computing unit 11, for calculating motor instant row according to the air inflow of engine and fuel consumption
The amount of releasing.Wherein the air inflow of engine is being obtained by being arranged on the intake airflow dynamics model or intake flow sensor in heavy goods vehicles
Take.
Emission result computing unit 12, for according to gas emission information, motor instant emission flow, engine its
His operation information and car load operation information, obtain in the car load NOx emission result with heavy goods vehicles, and wherein gas emission information passes through
Installed in in heavy goods vehicles NOx sensor obtain.
The other information of wherein engine is the information in addition to motor instant emission flow, equally can be at least through
Obtaining, the other information of such as engine at least includes the CAN and other sensors of engine：Obtained by temperature sensor
The water temperature of the engine for obtaining, the friction torque, rate of load condensate and the reference torque that are obtained by the CAN of engine.Car load runs
Information then can diagnose CAN to obtain by car load, such as diagnose CAN at least through car load to obtain speed expression
The information of car load running status.
It is above-mentioned to obtain in the car load NOx emission result with heavy goods vehicles, arranging using gas emission information, motor instant
The amount of releasing, the other information of engine and car load operation information, and these information can be covered in and use process with heavy goods vehicles
In car load applying working condition, therefore the car load NOx emission result for obtaining can be truly reflected in heavy goods vehicles on real road
Emission status.
Emission result computing unit 12 then can obtain car load by the first computation subunit and the second computation subunit
NOx emission result, wherein the first computation subunit, for according to gas emission information, obtaining the mass flow of NOx emission, tool
Body process refers to method part related description.
Second computation subunit, for according to motor instant emission flow, the mass flow of NOx emission, engine
Other operation informations and car load operation information, obtain in the car load NOx emission result with heavy goods vehicles.
Such as the second computation subunit according to motor instant emission flow, the mass flow of NOx emission, engine its
His operation information and car load operation information, by work(base window technique or region method up to standard or according to user's request arrange it is self-defined
Algorithm calculating car load NOx emission result, for the explanation of the custom algorithm arranged according to user's request refers to method portion
Divide related description.
Again such as：Second computation subunit, for by motor instant emission flow, the mass flow of NOx emission, start
Other operation informations and car load operation information of machine as |input paramete, by work(base window technique, region method up to standard and according to
The custom algorithm that family demand is arranged calculates respectively corresponding car load NOx emission result and obtains car load NOx by computational algorithm
Emission result；Then set from work(base window technique, region method up to standard and according to user's request by the alternative pack of vehicle-mounted detection apparatus
A car load NOx emission result output is chosen in the car load NOx emission result that the custom algorithm put is calculated.
Knowable to above-mentioned technical proposal, vehicle-mounted detection apparatus are arranged on in heavy goods vehicles, can such as be filled vehicle-mounted detection
Put and be integrated in electric-control motor, so may dispense with the vehicle-mounted discharge equipment of installing import with heavy goods vehicles, and can be with
Vehicle-mounted detection apparatus are applied to into each in the electric-control motor with heavy goods vehicles so that each is to become detection with heavy goods vehicles right
As to shorten product development cycle.The vehicle-mounted detection apparatus that further present invention is provided with heavy goods vehicles in actual motion
Various information, the operation information, fuel consumption, gas emission information and car load operation information such as at least with engine come
Obtain car load NOx emission result, so as to get car load NOx emission result can be covered in the car load applying working condition of heavy goods vehicles with
And gas emission status of the true reflection heavy goods vehicles on real road.
Fig. 5 is referred to, another kind of structural representation of vehicle-mounted detection apparatus provided in an embodiment of the present invention is it illustrates, is used
In being controlled to engine according to the car load NOx emission result for obtaining, specifically, on the basis of Fig. 3, can also include：
Comparing unit 13, for car load NOx emission result to be compared with default engine torque limit Rule of judgment,
To obtain torque limit state of value.
Transmitting element 14, for torque limit state of value to be sent to controller, so that controller is based on torque limit value
State controls engine.
Based on vehicle-mounted detection apparatus shown in above-mentioned Fig. 5, the workflow in vehicle-mounted detection apparatus between integrated unit
The operating diagram of journey is as shown in fig. 6, specific as follows：
1) air inflow and fuel consumption of engine are sent out as the |input paramete of emission flow computing unit 11
The instantaneous emission flow of motivation；
2) mass flow of the NOx emission for obtaining motor instant emission flow, the first computation subunit, engine
Other information and car load operation information obtain the emission result of car load NOx as the |input paramete of the second computation subunit.
Integrated active base window technique in wherein the second computation subunit, NTE methods and according to user's request arrange it is self-defined
Algorithm, by these three algorithms corresponding car load NOx emission result can be calculated.
3) arranged from work(base window technique, region method up to standard and according to user's request by the alternative pack of vehicle-mounted detection apparatus
The car load NOx emission result that calculates of custom algorithm in choose a car load NOx emission result output.Wherein alternative pack
It is a switch block with three-way, the output of an algorithm in each path one second computation subunit of correspondence
End, after path closure, the car load NOx emission result output that correspondence algorithm is obtained, and which path closure can be then basis
The current assessment mode chosen, in this way according to work(base window technique also according to custom algorithm.Such as the in alternative pack in Fig. 6
One pin is connected with the output end of assessment mode module, and the output end of assessment mode module exports a control signal, this control
Signal processed is used to that currently employed which kind of algorithm to be indicated, and then alternative pack closes corresponding leading in the presence of this control signal
Road.
4) the car load NOx emission result of selection is sent in operation interface and is shown.
5) the car load NOx emission result of selection is sent into comparing unit, by choose car load NOx emission result with
In comparing unit arrange default engine torque limit Rule of judgment compare, the torque limit state of value for obtaining send to
Controller.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For embodiment of the method, due to itself and device embodiment basic simlarity, so description is fairly simple, related part referring to
The part explanation of device embodiment.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that a series of process, method, article or equipment including key elements not only will including those
Element, but also including other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The foregoing description of the disclosed embodiments, enables those skilled in the art to realize or using the present invention.To this
Various modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with principles disclosed herein and features of novelty most wide
Scope.
Claims (10)
1. one kind is using accordance detection method, it is characterised in that methods described is applied to be filled in the vehicle-mounted detection with heavy goods vehicles
In putting, methods described includes：
The air inflow of engine is obtained, and the air inflow according to engine and fuel consumption calculate motor instant discharge stream
Amount；
By obtaining gas emission information with the NOx sensor in heavy goods vehicles installed in described；
Transported according to the gas emission information, the motor instant emission flow, other operation informations of engine and car load
Row information, obtains described in the car load NOx emission result with heavy goods vehicles.
2. method according to claim 1, it is characterised in that methods described also includes：By the car load NOx emission result
Compare with default engine torque limit Rule of judgment, to obtain torque limit state of value；
The torque limit state of value is sent to controller, so that the controller is controlled based on the torque limit state of value
Engine.
3. method according to claim 1, it is characterised in that the air inflow of the acquisition engine includes：By installing
The air inflow is being obtained described with the intake airflow dynamics model in heavy goods vehicles or intake flow sensor.
4. method according to claim 1, it is characterised in that described according to the gas emission information, the engine
Instantaneous emission flow, other operation informations of engine and car load operation information, obtain the car load NOx with heavy goods vehicles and arrange
Result is put, including：
According to the gas emission information, the mass flow of NOx emission is obtained；
According to the motor instant emission flow, the mass flow of the NOx emission, the engine other operation informations
With the car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles.
5. method according to claim 4, it is characterised in that it is described according to the motor instant emission flow, it is described
The mass flow of NOx emission, other operation informations of the engine and the car load operation information, obtain described with heavy type
The car load NOx emission result of car, including：
According to the motor instant emission flow, the mass flow of the NOx emission, the engine other operation informations
With the car load operation information, the self-defined calculation arranged by the work(base window technique or region method up to standard or according to user's request
Method is calculating the car load NOx emission result；
Or
The custom algorithm arranged by the work(base window technique, region method up to standard and according to user's request calculates respectively correspondence
The car load NOx emission result, and by the alternative pack in the vehicle-mounted detection apparatus from the work(base window technique, region
A car load is chosen in the car load NOx emission result that method up to standard and the custom algorithm arranged according to user's request are calculated
NOx emission result is exported.
6. a kind of vehicle-mounted detection apparatus, it is characterised in that the vehicle-mounted detection apparatus are arranged on in heavy goods vehicles, described device
Including：
Emission flow computing unit, for calculating motor instant discharge stream according to the air inflow of engine and fuel consumption
Amount；
Emission result computing unit, for according to gas emission information, the motor instant emission flow, engine other
Operation information and car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles, wherein gas discharge letter
Cease by being obtained with the NOx sensor in heavy goods vehicles installed in described.
7. device according to claim 6, it is characterised in that described device also includes：Comparing unit, for will be described whole
Car NOx emission result is compared with default engine torque limit Rule of judgment, to obtain torque limit state of value；
Transmitting element, for the torque limit state of value to be sent to controller, so that the controller is based on the moment of torsion
Limit state of value control engine.
8. device according to claim 6, it is characterised in that the air inflow of the engine by installed in it is described with
Intake airflow dynamics model or intake flow sensor in heavy goods vehicles is obtained.
9. device according to claim 6, it is characterised in that the emission result computing unit includes：First calculates son
Unit, for according to the gas emission information, obtaining the mass flow of NOx emission；
Second computation subunit, for according to the motor instant emission flow, mass flow of the NOx emission, described
Other operation informations of engine and the car load operation information, obtain described in the car load NOx emission result with heavy goods vehicles.
10. device according to claim 9, it is characterised in that second computation subunit, for being started according to described
The instantaneous emission flow of machine, the mass flow of the NOx emission, other operation informations of the engine and car load operation letter
Breath, by the work(base window technique or region method up to standard or according to the custom algorithm of user's request setting the car load is calculated
NOx emission result；
Or
Second computation subunit, for by the motor instant emission flow, the mass flow of the NOx emission, institute
Other operation informations and the car load operation information of engine are stated as the |input paramete, by the work(base window technique,
Region method up to standard and the custom algorithm arranged according to user's request calculate respectively the corresponding car load NOx emission result and lead to
Cross the computational algorithm and obtain the car load NOx emission result；
The vehicle-mounted detection apparatus also include：Alternative pack, for from the work(base window technique, region method up to standard and according to user
A car load NOx emission result output is chosen in the car load NOx emission result that the custom algorithm that demand is arranged is calculated.
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| CN108266251A (en) * | 2017-12-21 | 2018-07-10 | 潍柴动力股份有限公司 | Diesel emission loop test evaluation of result and modification method |
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| CN113064618A (en) * | 2021-03-31 | 2021-07-02 | 重庆长安新能源汽车科技有限公司 | System and method for simulating new energy vehicle conformance detection |
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Application publication date: 20170419 |