CN109630260A - The improvement method and system and automobile of a kind of diesel engine exhaust temperature - Google Patents
The improvement method and system and automobile of a kind of diesel engine exhaust temperature Download PDFInfo
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- CN109630260A CN109630260A CN201811513528.3A CN201811513528A CN109630260A CN 109630260 A CN109630260 A CN 109630260A CN 201811513528 A CN201811513528 A CN 201811513528A CN 109630260 A CN109630260 A CN 109630260A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
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- Combustion & Propulsion (AREA)
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Abstract
This application discloses a kind of improvement method of diesel engine exhaust temperature and system and automobiles, this method comprises: first, judge whether diesel engine is in the preset entry condition for improving delivery temperature, if, it then controls starting all-in-one machine to use as generator, and starts diesel engine consumption mechanical energy, produced electricl energy using controlling the starting all-in-one machine used as generator, to realize the increase of diesel engine load, and then improve the delivery temperature of diesel engine.It can be seen that, the embodiment of the present application is using starting all-in-one machine instead of the starter and generator of exclusive use, and when judging that diesel engine is in preset entry condition, control starting all-in-one machine is used as generator, start diesel engine consumption mechanical energy simultaneously, to control the power generation of starting all-in-one machine, to realize the increase of diesel engine load, and then the delivery temperature of diesel engine is improved, optimize the emission performance of diesel engine and the efficiency of post-processing.
Description
Technical field
This application involves technical field of engines, and in particular to a kind of improvement method of diesel engine exhaust temperature and is
System and automobile.
Background technique
Currently, diesel engine in the car using increasingly extensive, with emission regulation plus tight, it is also desirable to further
The emission performance and diesel engine thermal management technology of Optimization of Diesel Engine, to meet motor vehicle emission mark at this stage
It is quasi-.
Starter and generator are two independent components in the prior art, and the effect of starting system is in normal use item
Under part, the electric energy that battery stores is changed by mechanical energy by starter and drives diesel engine with sufficiently high rotation speed operation, with
Smoothly starting diesel engine；Generator provides power source for complete machine, when diesel engine runs well, Xiang Suoyou electrical equipment
Power supply, while charging to battery.But the two is the working method of extensive style, in the case where exclusive use, total quality
Greatly, working efficiency is low, integration is poor.Meanwhile low load region of the diesel engine in the entire range of speeds can be low in the presence of row's temperature
The problem of, cause diesel engine emissions performance poor, and then directly affect the efficiency of post-processing.Therefore, it is sent out to optimize diesel oil
The emission performance of motivation, it is necessary first to improve the delivery temperature of diesel engine, at present be usually using intake and exhaust throttle valve, can
The technologies such as spray, improve the delivery temperature of diesel engine, but these technologies can bring oil consumption after in variable cross-section pressure booster, cylinder
The problem of increase.
Therefore, how using more advanced technology substitution conventional method, diesel engine exhaust temperature is improved, to optimize
The emission performance of diesel engine and the efficiency of post-processing, it has also become urgent problem to be solved.
Summary of the invention
In view of this, the embodiment of the present application provides the improvement method and system and vapour of a kind of diesel engine exhaust temperature
Vehicle to improve diesel engine exhaust temperature, and then optimizes the emission performance of diesel engine and the efficiency of post-processing.
To solve the above problems, technical solution provided by the embodiments of the present application is as follows:
In a first aspect, this application provides a kind of improvement methods of diesel engine exhaust temperature, which comprises
Judge whether diesel engine is in the preset entry condition for improving delivery temperature；
If so, control starting all-in-one machine is used as generator；
Start diesel engine consumption mechanical energy, is produced electricl energy and with controlling the starting all-in-one machine by the electric energy
It is sent to battery, to realize the increase of the diesel engine load, and then improves the delivery temperature of the diesel engine,
Wherein, the diesel engine of stating is connected with the starting all-in-one machine.
In an optional implementation manner, the preset entry condition for improving delivery temperature is cold start-up operating condition,
It is then described to judge whether diesel engine is in the preset entry condition for improving delivery temperature, comprising:
Judge whether diesel engine is in cold start-up operating condition.
It is in an optional implementation manner, described to judge whether diesel engine is in cold start-up operating condition, comprising:
Judge whether the water temperature of diesel engine is between the first water temperature threshold value and the second water temperature threshold value；
Judge the delivery temperature of diesel engine whether be in first exhaust temperature threshold and second exhaust temperature threshold it
Between.
In an optional implementation manner, the first water temperature threshold value is 25 degree, and the second water temperature threshold value is 30 degree.
In an optional implementation manner, the preset entry condition for improving delivery temperature is default operation work
Condition, then it is described to judge whether diesel engine is in the preset entry condition for improving delivery temperature, comprising:
Judge whether diesel engine is in default operating condition.
It is in an optional implementation manner, described to judge whether diesel engine is in default operating condition, comprising:
Judge whether the delivery temperature of diesel engine is lower than SCR and plays spray temperature TSCR；
Judge whether the revolving speed of diesel engine is between the first rotary speed threshold value and the second rotary speed threshold value；
Judge whether the load of diesel engine is between the first load threshold value and second row load threshold value.
In an optional implementation manner, the control starting all-in-one machine is used as generator, comprising:
When starting all-in-one machine as starter in use, control starting all-in-one machine by starter is switched to generator and makes
With；
Alternatively, starting starting all-in-one machine is used as generator when starting all-in-one machine is in non-operational state.
In an optional implementation manner, the method also includes:
Judge whether the delivery temperature of the diesel engine reaches the SCR and play spray temperature TSCR；
If so, controlling the starting all-in-one machine is not re-used as generator use, and controls the diesel engine and stop
Consume the running of mechanical energy.
Second aspect, this application provides a kind of raising system of diesel engine exhaust temperature, the system comprises: bavin
Oil turbine, starting all-in-one machine, controller, converter and battery；
The diesel engine, for judging whether in the preset entry condition for improving delivery temperature, if so, logical
The controller is crossed, the starting all-in-one machine is controlled and is used as generator；Meanwhile consumption mechanical energy is controlled into the starting
All-in-one machine produces electricl energy and the electric energy is sent to the battery, to increase load, and then improves delivery temperature；
The starting all-in-one machine is sent to the battery for producing electricl energy, and by the electric energy；
The controller is used for controlling the starting all-in-one machine as generator；
The battery, for receiving the electric energy and storage that the starting all-in-one machine is sent.
The third aspect, this application provides a kind of automobile, the automobile installs the diesel oil hair of the application second aspect offer
The raising system of motivation delivery temperature.
It can be seen that the embodiment of the present application has the following beneficial effects:
In the improvement method of diesel engine exhaust temperature provided by the present application, first, it is determined that diesel engine whether
In the preset entry condition for improving delivery temperature, if so, control starting all-in-one machine is used as generator, and start bavin
Oil turbine consumes mechanical energy, is produced electricl energy using controlling the starting all-in-one machine used as generator, and electric energy is sent to electricity
Pond to realize the increase of diesel engine load, and then improves the delivery temperature of diesel engine.As it can be seen that the application
Embodiment utilizes starting all-in-one machine instead of the starter and generator of exclusive use, and is judging diesel engine in pre-
If entry condition when, control starting all-in-one machine is used as generator, while start diesel engine consume mechanical energy, with control
Starting all-in-one machine power generation processed, to realize the increase of diesel engine load, and then improve by way of consuming mechanical energy
The delivery temperature of diesel engine, optimizes the emission performance of diesel engine and the efficiency of post-processing.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of flow chart of the improvement method of diesel engine exhaust temperature provided by the embodiments of the present application；
Fig. 2 is a kind of schematic diagram for predicting diesel engine operating condition provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of the raising system of diesel engine exhaust temperature provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of automobile provided by the embodiments 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.
Technical solution provided by the present application in order to facilitate understanding below first carries out the research background of technical scheme
Simple declaration.
In recent years, with the enhancing of people's environmental protection consciousness, for motor vehicle emission, there has also been more stringent
Requirement.In the prior art, starter and generator are used, respectively, to initiate diesel-driven generator as two independent components,
And in whole short of electricity, power source, but the mode of this exclusive use are provided for it, will lead to that total quality is big, work
Low efficiency, integration are poor.Meanwhile low load region of the diesel engine in the entire range of speeds can have that row's temperature is low,
Cause diesel engine emissions performance poor, and then directly affects the efficiency of post-processing.Therefore, in order to optimize the row of diesel engine
Put performance, it is necessary first to improve the delivery temperature of diesel engine, at present be usually to increase using intake and exhaust throttle valve, variable cross section
The technologies such as spray, improve the delivery temperature of diesel engine, but these technologies can bring oil consumption is increased to ask after in depressor, cylinder
Topic.
Based on this, present applicant proposes a kind of improvement methods of diesel engine exhaust temperature, are taken using starting all-in-one machine
For the starter and generator that are used alone, and when judging that diesel engine is in preset entry condition, control
Hair all-in-one machine is used as generator, while starting diesel engine consumption mechanical energy, to control the power generation of starting all-in-one machine, thus
By way of consuming mechanical energy, the increase of diesel engine load is realized, and then improves the exhaust temperature of diesel engine
Degree, optimizes the emission performance of diesel engine and the efficiency of post-processing.
Next, in conjunction with attached drawing to a kind of improvement method of diesel engine exhaust temperature provided by the embodiments of the present application into
Row is described in detail.
Referring to Fig. 1, it illustrates a kind of improvement methods of diesel engine exhaust temperature provided by the embodiments of the present application
Flow chart, as shown in Figure 1, this method comprises:
S101: judge whether diesel engine is in the preset entry condition for improving delivery temperature.
In the present embodiment, in order to improve diesel engine exhaust temperature, to optimize the emission performance of diesel engine
And the efficiency of post-processing, it is necessary first to get the operating conditions such as water temperature, the delivery temperature of diesel engine, and then according to these
Operating condition, judges whether diesel engine is in the preset entry condition for improving delivery temperature.
In some possible implementations of the embodiment of the present application, the preset entry condition for improving delivery temperature is referred to
It is cold-started operating condition.Then, correspondingly, judging whether diesel engine is in the preset entry condition for improving delivery temperature and specifically wraps
It includes: judging whether diesel engine is in cold start-up operating condition.
In this implementation, the pre-set entry condition for improving delivery temperature is cold start-up operating condition, that is to say, that
It when diesel engine is in cold start-up operating condition, then needs to improve the delivery temperature of diesel engine, and judges diesel engine
Whether the specific implementation process in cold start-up operating condition may include following
Step A-B:
Step A: judge whether the water temperature of diesel engine is between the first water temperature threshold value and the second water temperature threshold value.
In this step, it when judging whether diesel engine is in cold start-up operating condition, needs to judge diesel engine
Water temperature whether be between the first water temperature threshold value and the second water temperature threshold value, wherein by the first water temperature threshold definitions be TThreshold value 1, and
And TThreshold value 1Value can be configured according to the actual situation, for example, it is a kind of it is optional be achieved in that, can be by the first water temperature threshold value
TThreshold value 1It is taken as 25 degree.Similar, it can be T by the second water temperature threshold definitionsThreshold value 2, and TThreshold value 2Value can also be according to reality
Situation is configured, and is achieved in that for example, one kind is optional, can be by the second water temperature threshold value TThreshold value 2It is taken as 30 degree.It again will at this time
The water temperature of diesel engine be defined as T1, then judge whether the water temperature of diesel engine is in the first water temperature threshold value and second
Detailed process between water temperature threshold value is to judge whether following calculation formula (1) are true:
TThreshold value 1≤T1≤TThreshold value 2 (1)
Step B: judge whether the delivery temperature of diesel engine is in first exhaust temperature threshold and second exhaust temperature
Between threshold value.
In this step, when judging whether diesel engine is in cold start-up operating condition, it is also necessary to judge diesel engine
Whether the delivery temperature of machine is between first exhaust temperature threshold and second exhaust temperature threshold, wherein by first row temperature
Degree threshold definitions are TIq threshold value 1, and TIq threshold value 1Value can be configured according to the actual situation.Similar, it can be by second exhaust
Temperature threshold is defined as TIq threshold value 2, and TIq threshold value 2Value can also be configured according to the actual situation.It can also will at this time
The delivery temperature of diesel engine is defined as T2, then judge whether the delivery temperature of diesel engine is in first exhaust temperature
Detailed process between threshold value and second exhaust temperature threshold is to judge whether following calculation formula (2) are true:
TIq threshold value 1≤T2≤TIq threshold value 2 (2)
It should be noted that conditioning step A and step B does not execute sequence to the application.
In some possible implementations of the embodiment of the present application, the preset entry condition for improving delivery temperature is referred to
Default operating condition.Then, correspondingly, judge diesel engine whether be in it is preset improve delivery temperature entry condition it is specific
It include: to judge whether diesel engine is in default operating condition.
In this implementation, the pre-set entry condition for improving delivery temperature is default operating condition, that is,
It says, when diesel engine is in default operating condition, then needs to improve the delivery temperature of diesel engine.And judging diesel oil
Whether engine is in front of default operating condition, it is necessary first to predict the fortune within following a period of time of diesel engine
Row operating condition.Specifically, it can be provided based on global positioning system (Global Positioning System, abbreviation GPS)
Automobile present position information and electronic map, the road information for alloing vehicle control syetem to obtain front in advance are (gradient, curved
Road, speed-limit road section), and electronic control unit (Electronic Control Unit, abbreviation ECU) is transmitted these information to,
So that ECU predicts operating condition (such as delivery temperature, revolving speed and the load of diesel engine of automobile future travel accordingly
Deng), as shown in Fig. 2, " GPS data extraction -> road conditions identification (obtaining road information) -> diesel engine operating condition can be passed through
Identification " executes sequence, predicts operating condition of the diesel engine within following a period of time, then judge that diesel engine is
It is no to be in default operating condition.The specific implementation process of this implementation may include following step C-E:
Step C: judge whether the delivery temperature of diesel engine is lower than SCR and plays spray temperature TSCR。
In this step, presetting operating condition is preset cold operation operating condition, then in order to whether judge diesel engine
When in preset cold operation operating condition, need to judge whether the delivery temperature of diesel engine is lower than diesel SCR tail gas
Post-process (Selective Catalytic Reduction, abbreviation SCR) plays spray temperature TSCR, by diesel engine at this time
Water temperature be defined as T, then judge the delivery temperature of diesel engine whether be lower than SCR rise spray temperature TSCRDetailed process be
To judge whether following calculation formula (3) are true:
T≤TSCR (3)
Step D: judge whether the revolving speed of diesel engine is between the first rotary speed threshold value and the second rotary speed threshold value.
In this step, presetting operating condition is preset idling operation, when automobile is in idling, for example, waiting automobiles
At red traffic light, or be in traffic congestion state when, can be by judging whether rotary speed of diesel engine is in first turn
Between fast threshold value and the second rotary speed threshold value, to judge whether need to improve the delivery temperature of diesel engine, wherein by first
Rotary speed threshold value is defined as nThreshold value 1, and nThreshold value 1Value can be configured according to the actual situation.Similar, it can be by the second revolving speed
Threshold definitions are nThreshold value 2, and nThreshold value 2Value can also be configured according to the actual situation.The revolving speed of diesel engine is defined
For n, and n value can operating condition obtains within following a period of time according to the diesel engine predicted, then judge
The detailed process whether revolving speed of diesel engine is between the first rotary speed threshold value and the second rotary speed threshold value as judges following
Whether calculation formula (4) is true:
nThreshold value 1≤n≤nThreshold value 2 (4)
Step E: judge whether the load of diesel engine is between the first load threshold value and second row load threshold value.
In this step, presetting operating condition is preset idling operation, when automobile is in idling, for example, waiting automobiles
At red traffic light, or when being in traffic congestion state, the whether can also be in by judging the load of diesel engine
Between one load threshold value and second row load threshold value, to judge whether need to improve the delivery temperature of diesel engine, wherein
First load threshold value is defined as LThreshold value 1, and LThreshold value 1Value can be configured according to the actual situation.Similar, it can be by
Two load threshold values are defined as LThreshold value 2, and LThreshold value 2Value can also be configured according to the actual situation.By the symbol of diesel engine
Conjunction is defined as L, then judges whether the load of diesel engine is between the first load threshold value and second row load threshold value
Detailed process is to judge whether following calculation formula (5) are true:
LThreshold value 1≤L≤LThreshold value 2 (5)
It should be noted that conditioning step C, step D and step E do not execute sequence to the application.
S102: if judging, diesel engine is in the preset entry condition for improving delivery temperature, controls starting one
Body machine is used as generator.
In the present embodiment, if judging that diesel engine is in preset and improves opening for delivery temperature by step S101
Dynamic condition, for example, diesel engine is in cold start-up operating condition if judging, i.e. above-mentioned formula (1) and (2) are set up simultaneously.Alternatively,
If judging, diesel engine is in default operating condition, i.e. above-mentioned formula (3), (4) and (5) is set up simultaneously.Then control starting
All-in-one machine is used as generator.Specifically, a kind of to be optionally achieved in that, when starting all-in-one machine is used as starter
When, control starting all-in-one machine by starter be switched to generator come using.Alternatively, when starting all-in-one machine is in non-operational state
When, starting starting all-in-one machine is used as generator.
S103: starting diesel engine consumes mechanical energy, produces electricl energy to control starting all-in-one machine and is sent to electric energy
Battery to realize the increase of diesel engine load, and then improves the delivery temperature of diesel engine.
In the present embodiment, after being used by step S102 control starting all-in-one machine as generator, in order to increase diesel oil
The load of engine to improve the delivery temperature of diesel engine, and then optimizes the emission performance of diesel engine and locates afterwards
The efficiency of reason.It needs to start diesel engine consumption mechanical energy, and then controls the starting all-in-one machine used as generator and generate
Electric energy, and it is sent to battery.Since diesel engine consumes mechanical energy in the process, so, the negative of its own can be made
Lotus increases, and so as to improve delivery temperature, and then can optimize the emission performance of diesel engine and the efficiency of post-processing.
Further, in a kind of implementation of the present embodiment, S103 improves diesel engine through the above steps
Delivery temperature after, it is also necessary to judge the delivery temperature of diesel engine whether reach SCR rise spray temperature TSCR；If so, control
Starting all-in-one machine processed is not re-used as generator use, and controls the running that diesel engine stops consumption mechanical energy.
In this implementation, if S103 improves the delivery temperature of diesel engine through the above steps, need
While improving delivery temperature, judge whether the delivery temperature has reached diesel SCR exhaust aftertreatment (i.e. SCR catalyst)
Play spray temperature TSCRIf not up to, can continue to improve delivery temperature, if having reached SCR plays spray temperature TSCR, then need to control
Starting all-in-one machine is not re-used as generator use, and controls the running that diesel engine stops consumption mechanical energy, that is, stops improving
Delivery temperature realizes that optimization is burnt to carry out subsequent SCR exhaust aftertreatment process, and then the economy of raising diesel engine,
Dynamic property and emission performance.
In this way, in the improvement method of diesel engine exhaust temperature provided by the present application, first, it is determined that diesel engine
Whether in the preset entry condition for improving delivery temperature, if so, control starting all-in-one machine is used as generator, and open
Dynamic diesel engine consumes mechanical energy, is produced electricl energy using controlling the starting all-in-one machine used as generator, and electric energy is sent
To battery, to realize the increase of diesel engine load, and then the delivery temperature of diesel engine is improved.As it can be seen that this
Apply for starter and generator of the embodiment using starting all-in-one machine instead of exclusive use, and is judging at diesel engine
When preset entry condition, control starting all-in-one machine is used as generator, while starting diesel engine consumption mechanical energy,
To control the power generation of starting all-in-one machine, to realize the increase of diesel engine load, in turn by way of consuming mechanical energy
The delivery temperature for improving diesel engine optimizes the emission performance of diesel engine and the efficiency of post-processing.
The present embodiment additionally provides a kind of raising system of diesel engine exhaust temperature, below in conjunction with attached drawing to this reality
The raising system for applying the diesel engine exhaust temperature of example offer is introduced.
Referring to Fig. 3, which is a kind of knot of the raising system of diesel engine exhaust temperature provided in an embodiment of the present invention
Structure schematic diagram.
The raising system 300 of the diesel engine exhaust temperature of the embodiment of the present application includes diesel engine 301, starting one
Body machine 302, controller 303, converter 304 and battery 305.
Wherein, diesel engine 301, for judging whether in the preset entry condition for improving delivery temperature, if so,
Then by the controller, controls the starting all-in-one machine and used as generator；Meanwhile it is consumption mechanical energy is described to control
Starting all-in-one machine produces electricl energy and the electric energy is sent to the battery, to increase load, and then improves delivery temperature.
Starting all-in-one machine 302 is sent to the battery 305 for producing electricl energy, and by the electric energy；
Controller 303 is used for controlling the starting all-in-one machine 302 as generator.
Battery 304, for receiving the electric energy and storage that the starting all-in-one machine 302 is sent.
It should be noted that in the present embodiment the raising system 300 of diesel engine exhaust temperature raising delivery temperature
The specific implementation of function may refer to above method embodiment, and details are not described herein.
In the raising system of diesel engine exhaust temperature provided by the embodiments of the present application, replaced using starting all-in-one machine
The starter and generator being used alone in conventional method, and judging that diesel engine is in preset entry condition
When, control starting all-in-one machine is used as generator, while starting diesel engine consumption mechanical energy, to control starting all-in-one machine
Power generation, to realize the increase of diesel engine load by way of consuming mechanical energy, and then improves diesel engine
Delivery temperature, optimize the emission performance of diesel engine and the efficiency of post-processing.
The present embodiment additionally provides a kind of automobile, and automobile provided in this embodiment is introduced below in conjunction with attached drawing.
Referring to fig. 4, which is a kind of structural schematic diagram of automobile provided in an embodiment of the present invention.
The automobile 400 of the embodiment of the present application includes the raising system for the diesel engine exhaust temperature introduced in above-described embodiment
System 300, wherein the raising system 300 of diesel engine exhaust temperature, for improving the delivery temperature of diesel engine, so as to
Optimize the emission performance of diesel engine and the efficiency of post-processing.
It should be noted that in the automobile 400 of the present embodiment the raising system 300 of diesel engine exhaust temperature raising
The specific implementation of delivery temperature function may refer to above method embodiment, and details are not described herein.
In automobile provided by the embodiments of the present application, the raising system of the diesel engine exhaust temperature of installation can lead to
ECU is crossed to judge whether in the preset entry condition for improving delivery temperature, if so, by controller, control starting one
Machine is used as generator；Meanwhile starting diesel engine consumption mechanical energy being produced electricl energy concurrently to control starting all-in-one machine
Battery is given, to increase the load of diesel engine, and then the delivery temperature of diesel engine is improved, optimizes diesel engine
Emission performance and post-processing efficiency.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment emphasis is said
Bright is the difference from other embodiments, and the same or similar parts in each embodiment may refer to each other.For reality
For applying system or device disclosed in example, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, phase
Place is closed referring to method part illustration.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments makes professional and technical personnel in the field can be realized or use the application.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of improvement method of diesel engine exhaust temperature, which is characterized in that the described method includes:
Judge whether diesel engine is in the preset entry condition for improving delivery temperature；
If so, control starting all-in-one machine is used as generator；
Start diesel engine consumption mechanical energy, produces electricl energy to control the starting all-in-one machine and send the electric energy
To battery, to realize the increase of the diesel engine load, and then the delivery temperature of the diesel engine is improved,
In, the diesel engine of stating is connected with the starting all-in-one machine.
2. the method according to claim 1, wherein the preset entry condition for improving delivery temperature is cold
Start operating performance, then it is described to judge whether diesel engine is in the preset entry condition for improving delivery temperature, comprising:
Judge whether diesel engine is in cold start-up operating condition.
3. according to the method described in claim 2, it is characterized in that, described judge whether diesel engine is in cold start-up work
Condition, comprising:
Judge whether the water temperature of diesel engine is between the first water temperature threshold value and the second water temperature threshold value；
Judge whether the delivery temperature of diesel engine is between first exhaust temperature threshold and second exhaust temperature threshold.
4. according to the method described in claim 3, it is characterized in that, the first water temperature threshold value be 25 degree, second water temperature
Threshold value is 30 degree.
5. the method according to claim 1, wherein the preset entry condition for improving delivery temperature is pre-
It is if operating condition, then described to judge whether diesel engine is in the preset entry condition for improving delivery temperature, comprising:
Judge whether diesel engine is in default operating condition.
6. according to the method described in claim 5, it is characterized in that, described judge whether diesel engine is in default operation work
Condition, comprising:
Judge whether the delivery temperature of diesel engine is lower than SCR and plays spray temperature TSCR；
Judge whether the revolving speed of diesel engine is between the first rotary speed threshold value and the second rotary speed threshold value；
Judge whether the load of diesel engine is between the first load threshold value and second row load threshold value.
7. being wrapped the method according to claim 1, wherein the control starting all-in-one machine is used as generator
It includes:
When starting all-in-one machine as starter in use, control starting all-in-one machine by starter be switched to generator come using；
Alternatively, starting starting all-in-one machine is used as generator when starting all-in-one machine is in non-operational state.
8. the method according to claim 1, wherein the method also includes:
Judge whether the delivery temperature of the diesel engine reaches the SCR and play spray temperature TSCR；
If so, controlling the starting all-in-one machine is not re-used as generator use, and controls the diesel engine and stop consumption
The running of mechanical energy.
9. a kind of raising system of diesel engine exhaust temperature, which is characterized in that the system comprises: diesel engine rises
Send out all-in-one machine, controller, converter and battery；
The diesel engine, for judging whether in the preset entry condition for improving delivery temperature, if so, passing through institute
Controller is stated, the starting all-in-one machine is controlled and is used as generator；Meanwhile it is consumption mechanical energy is integrated to control the starting
Machine produces electricl energy and the electric energy is sent to the battery, to increase load, and then improves delivery temperature；
The starting all-in-one machine is sent to the battery for producing electricl energy, and by the electric energy；
The controller is used for controlling the starting all-in-one machine as generator；
The battery, for receiving the electric energy and storage that the starting all-in-one machine is sent.
10. a kind of automobile, which is characterized in that the automobile is equipped with diesel engine exhaust temperature as claimed in claim 9
Raising system.
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