CN104948329B - A kind of engine design method - Google Patents
A kind of engine design method Download PDFInfo
- Publication number
- CN104948329B CN104948329B CN201510257802.5A CN201510257802A CN104948329B CN 104948329 B CN104948329 B CN 104948329B CN 201510257802 A CN201510257802 A CN 201510257802A CN 104948329 B CN104948329 B CN 104948329B
- Authority
- CN
- China
- Prior art keywords
- parameter
- engine
- combustion
- actual
- operating condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of engine design method, include the following steps: the target capabilities parameter for formulating engine；The target capabilities parameter of the engine is divided into target combustion parameter of the engine under multiple operating conditions；Corresponding design scheme is determined to combustion model mechanism for each operating condition, to acquire Actual combustion parameter of each operating condition under corresponding design scheme；And when the Actual combustion parameter meets preset evaluation criterion, the engine is designed using design scheme corresponding with the Actual combustion parameter.Engine design method provided by the invention, engine can be improved designs and develops efficiency, and it is reciprocal to avoid inefficient process, to save development time and exploitation funds.
Description
Technical field
The present invention relates to engine art more particularly to a kind of engine design methods.
Background technique
In existing engine development design, usually start to carry out complete machine after the performance parameter for formulating complete machine
Design successively carries out engine trial-production, experiment again later and is modified optimization for the problem in engineering prototype.
However the target making of combustion system parameter is directed to due to lacking, lead to the burning very big to engine performance impacts
The exploitation of system can not directly associate with the formulation of performance parameter, i.e., can not pointedly the thermodynamics development phase with
The engine verifying development phase effectively feeds back the performance parameter of complete machine, causes overall design and engineering prototype to simulate imitative
It is reciprocal that inefficient process is repeated between true, serious waste time and funds resource.
Summary of the invention
In view of the above-mentioned problems, can effectively save engine the purpose of the present invention is to provide a kind of engine design method
Design time and funds resource.
The present invention provides a kind of engine design method, includes the following steps:
Formulate the target capabilities parameter of engine；
The target capabilities parameter of the engine is divided into target combustion parameter of the engine under multiple operating conditions；
Corresponding design scheme is determined to combustion model mechanism for each operating condition, to acquire each operating condition in corresponding design
Actual combustion parameter under scheme；And
When the Actual combustion parameter meets preset evaluation criterion, set using corresponding with the Actual combustion parameter
Count engine described in conceptual design.
As an improvement of the above scheme, the target capabilities parameter of the engine includes maximum power, peak torque, feature
Operating point oil consumption, ignition operating condition discharge amount and ignition operating condition heat flux.
As an improvement of the above scheme, the multiple operating condition includes that full load mode, partial load condition and catalyst converter rise
Fire operating condition.
As an improvement of the above scheme, described that the target capabilities parameter of the engine is divided into the engine not
With the target combustion parameter under operating condition, specifically:
By in the target capabilities parameter the maximum power and the peak torque be divided into the full load mode
Under target combustion parameter；
The characteristic operating point oil consumption in the target capabilities parameter is divided into the mesh under the partial load condition
Mark combustion parameter；
By in the target capabilities parameter the ignition operating condition discharge amount and ignition operating condition heat flux be divided into described urge
Change the target combustion parameter under device ignition operating condition.
As an improvement of the above scheme, the combustion model machine includes: gas handling system, exhaust system, oil supply system, igniting
System, cooling system, lubricating system, valve actuating mechanism, crank link mechanism and air flue and combustion chamber.
As an improvement of the above scheme, described that corresponding design scheme is determined to combustion model mechanism for each operating condition, with
Actual combustion parameter of each operating condition under the corresponding design scheme is acquired, specifically:
Valve timing control scheme, Injection Control scheme and the ignition control side of combustion model machine are formulated for each operating condition
Case；And
The combustion model machine is controlled according to prepared valve timing control scheme, Injection Control scheme and ignition control
Scheme operation, to acquire the Actual combustion parameter under each operating condition.
As an improvement of the above scheme, described when the Actual combustion parameter meets preset evaluation criterion, using with
The Actual combustion parameter corresponding design scheme design engine, specifically:
Judge whether the Actual combustion parameter meets the requirement of the target combustion parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and join using with the Actual combustion
The corresponding design scheme of number designs the engine；
If it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
As an improvement of the above scheme, described when the Actual combustion parameter meets preset evaluation criterion, using with
The Actual combustion parameter corresponding design scheme design engine, specifically:
According to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine；
Judge whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and join using with the Actual combustion
The corresponding design scheme of number designs the engine；
If it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
As an improvement of the above scheme, described when the Actual combustion parameter meets preset evaluation criterion, using with
The Actual combustion parameter corresponding design scheme design engine, specifically:
According to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine；
Judge whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and join using with the Actual combustion
The corresponding design scheme of number designs the engine；
If it is not, then readjusting the target capabilities parameter of the engine.
Engine design method provided in an embodiment of the present invention, by the way that the target capabilities parameter is divided into multiple operating conditions
Under target combustion parameter, and by carrying out thermodynamics exploitation and verifying using a variety of design schemes to combustion model machine so that
The combustion system exploitation the most key to engine performance impacts is directly got up with the target capabilities parameter association of engine, real
Effective Feedback between the two is showed, improve engine designs and develops efficiency, it is reciprocal to avoid inefficient process, and can save
Save plenty of time and exploitation funds.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of engine design method provided in an embodiment of the present invention.
Fig. 2 is a kind of idiographic flow schematic diagram of engine design method shown in FIG. 1.
Fig. 3 is another idiographic flow schematic diagram of engine design method shown in FIG. 1.
Fig. 4 is another idiographic flow schematic diagram of engine design method shown in FIG. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of engine design method, the engine design method is at least wrapped
Include following steps:
S101 formulates the target capabilities parameter of engine.
In embodiments of the present invention, it before designing an engine or a kind of engine of model, needs first according to engine
Specifically used occasion or the series of factors such as automotive type of adaptation pre-establish the target capabilities parameter of the engine,
In, the target capabilities parameter includes but is not limited to maximum power, peak torque, characteristic operating point oil consumption, the discharge of ignition operating condition
Amount and ignition operating condition heat flux.
The target capabilities parameter of the engine is divided into target combustion of the engine under multiple operating conditions by S102
Parameter.
In embodiments of the present invention, the target capabilities parameter of the engine can be with the target combustion parameter of the engine
It connects, to set up the corresponding relationship between the target capabilities parameter of the engine and target combustion system parameter.
Wherein, the target combustion parameter is that the combustor of the engine needs expected burning ginseng to be achieved in combustion
Number, and the combustion parameter is the parameters or index that the combustor generates in combustion.
In embodiments of the present invention, multiple operating conditions of the engine include full load mode, partial load condition and urge
Change device ignition operating condition, wherein different operating conditions corresponds to different target capabilities parameters, and the target capabilities parameter can also use phase
The target combustion parameter answered indicates.
Specifically, under the full load mode, it is envisaged that power index, and it is dynamic with the engine
The relevant target capabilities parameter of power index is the maximum power and the peak torque, wherein the maximum power and institute
Stating peak torque can be calculated by the brake mean-effective pressure (BMEP) in target combustion parameter, specifically, described
BMEP can be combined with discharge capacity and be calculated torque, and combined by the revolving speed with engine and can be calculated power.In this way, working as
After the maximum power and peak torque are decided, the value of the BMEP is also determining.
In embodiments of the present invention, BMEP=IMEP-FMEP=IPMP-EMEP-OMEP-FMEP, it is therefore, pre- in order to obtain
The BMEP of phase, can be by adjusting IPMP (theoretical power (horse-power) equivalent pressure), EMEP (discharge loss mean effective pressure), OMEP (its
He loses mean effective pressure), the value of FMEP (friction loss mean effective pressure) obtain scheduled BMEP value, wherein institute
Stating IPMP, EMEP, OMEP, FMEP is the parameter or index generated in combustion process, and can be adjusted control, for example, can
By improve air inflow (improve admission pressure, reduce intake air temperature, reduce EGR, utilize air inlet inertia, reduce intake resistance),
The modes such as forced exhaust negative work are reduced to improve IPMP, EMEP can be reduced by increasing expansion work, advanced combustion center of gravity, it can
(reduce burning by improving degree of constant volume (improve Tumble and swirl, reinforce squish, raising piston downstream rate), increasing ignition advance angle
Room temperature reduces flame travel, avoids combustion chamber hot spot) OMEP is reduced, pass through and reduces the friction of piston group, reduces crank
Link mechanism friction reduces valve actuating mechanism friction, reduces accessory system consumption function to reduce FMEP etc..
In embodiments of the present invention, for the partial load condition, it is envisaged that economic index, and with it is described
The relevant target capabilities parameter of the economic index of engine is characterized operating point oil consumption, and the characteristic operating point oil consumption can be by having
Imitate fuel consumption rate beIt is evaluated,Wherein, HuFor the low burn value of fuel,
Discharge loss efficiencyIndicated efficiencyMechanical efficiencyUnknown losses efficiencyWherein, in order to obtain expected effective specific fuel consumption be, can be used above-mentioned various
Control method is adjusted, details are not described herein.
In embodiments of the present invention, for the catalyst converter ignition operating condition, it is envisaged that emission performance index, influences
The performance parameter of the emission performance index of the engine is ignition operating condition discharge amount and ignition operating condition heat flux, and ignition operating condition is arranged
High-volume and ignition operating condition heat flux can be respectively by MTHCAnd QEXHIt obtains, wherein MTHC=0.000479 × MEXH× THC ÷ Vh, QEXH
=MEXH×((TEXH+273)×Cp- 296) ÷ (3600 × Vh), in formula, MEXHTo discharge air capacity, TEXHFor the temperature for discharging air
Degree, THC are the hydrocarbon total amount in emission, CpFor vent ratio level pressure hot melt.Vh is single cylinder swept volume.
It can be seen from the above, in embodiments of the present invention, the target capabilities parameter of the engine can be divided into each operating condition
Under target combustion parameter, thus required target capabilities parameter can be obtained by adjusting these target combustion parameters.
S103 determines corresponding design scheme to combustion model mechanism for each operating condition, to acquire each operating condition in correspondence
Design scheme under Actual combustion parameter.
In embodiments of the present invention, it can be simulated by a combustion model machine to adjust and obtain the target combustion
Parameter.Wherein, the combustion model machine can be an entity model machine, be also possible to be simulated by simulation softward Lai emulation
The combination of machine or entity model machine and replicating machine, the present invention is not specifically limited.
Specifically, in embodiments of the present invention, the combustion model machine may include gas handling system, exhaust system, fuel feeding system
System, ignition system, cooling system, lubricating system, valve actuating mechanism, crank link mechanism and air flue and combustion chamber.Wherein, for not
Corresponding design scheme is formulated with not homologous ray of the operating condition to the combustion model machine, the reality under the design scheme can be acquired
Border combustion parameter.
For example, as the specific embodiment of the present invention following design scheme can be formulated for different operating conditions: for
Following design scheme can be used in the full load mode: (low speed segment uses larger valve overlap to valve timing control, and realization is swept
Airway dysfunction；Middling speed section uses smaller valve overlap, reduces internal EGR and inhibits pinking；High regime inlet and outlet gate delay is closed,
Utilize inlet and outlet inertia improve volumetric efficiency), Injection Control (Injection Control scheme twice, for the first time spray start-phase into
Gas stroke mid-early stage sprays 80% fuel oil；Be injected in compression stroke initial stage for the second time), ignition control (control in knock threshold).
Through the above design, IMEP, FMEP, IPMP, EGMEP, OMEP, burning center of gravity, combustion under the design scheme be can get
The Actual combustions parameters such as duration are burnt, and then obtain expected BMEP.
Following design schemes can be used for partial load condition: (middle small load condition is using larger for valve timing control
Valve overlap improves internal EGR and reduces pumping loss), (middle small load condition carries out fuel oil using smaller rail pressure to Injection Control
Single injection event, high load working condition are sprayed twice using larger rail pressure), (the medium and small load angle of ignition is controlled in MBT ignition control
Corresponding position, big load control system is in knock threshold)；Through the above design, it can get the η under the design schemee、ηi、
ηexh、ηo、ηm, burning center of gravity, the Actual combustions parameter such as combustion duration, and then obtain expected be。
Following design schemes can be used for catalyst converter ignition operating condition: valve timing control (open in advance, air inlet by exhaust valve
Door, which is postponed, to be opened, and is improved delivery temperature and is reduced internal EGR and improves combustion stability), Injection Control (sprayed twice using maximum rail pressure
Scheme is penetrated, start-phase is sprayed for the first time at induction stroke initial stage, sprays 60% fuel oil；It is injected in after doing compression journey for the second time
Phase), ignition control (use very slow ignition timing).Through the above design, it can get under the design scheme
MTHC、MEXH、THC、QEXH、TEXHEtc. Actual combustions parameter.
S104, when the Actual combustion parameter meets preset evaluation criterion, using with the Actual combustion parameter pair
The design scheme answered designs the engine.
Referring to Figure 2 together, in embodiments of the present invention, by the Actual combustion parameter obtained according to the design scheme with
Target combustion parameter under the operating condition is compared, to confirm whether the design scheme meets expected requirement.Specifically:
S1041, judges whether the Actual combustion parameter meets the requirement of the target combustion parameter.
S1042 if so, confirming that the Actual combustion parameter meets preset evaluation criterion, and is used and the reality
The corresponding design scheme of combustion parameter designs the engine.
In embodiments of the present invention, if the Actual combustion parameter meets the requirement of the target combustion parameter, such as institute
It states Actual combustion parameter difference consistent with the target combustion parameter or both and is less than preset error amount, then use and the reality
The corresponding design scheme designed combustion machine of border combustion parameter, and the combustor is used in the design of the engine, and then complete
At the design of the engine.
S1043, if it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
In embodiments of the present invention, if the Actual combustion parameter is unsatisfactory for the requirement of the target combustion parameter, needle
The design scheme is readjusted to each operating condition, wherein adjusting the design scheme can be to the above-mentioned design side provided
Case is adjusted, such as the full load mode, and valve overlap is adjusted or adjusts oil spout twice in Injection Control
Ratio etc. adjust the Actual combustion parameter, be also possible to that the other systems of the combustion model machine are improved or controlled
System, such as gas handling system and exhaust system, admission pressure can be improved by Proper Match booster and intercooler, reduced
Exhaust back pressure and intake air temperature, so that IPMP is improved, it can also be by optimizing inlet manifold, improving intake uniformity and reducing air inlet
Resistance improves IPMP.For oil supply system, it is horizontal that atomization can be improved by high pressure direct injection oil supply system, so that OMEP is reduced,
Indicated thermal efficiency is improved, THC discharge is reduced, fuel-air mixture quality can also be improved by multi-injection control program, reinforce cylinder
Interior flow strength reduces OMEP, improves indicated thermal efficiency, reduces THC discharge.For ignition system, high-energy ignition line can be used
Circle improves combustion stability, and allows using biggish internal EGR rate, so that OMEP is reduced, it can also be by rationally controlling igniting
Timing improves the thermal efficiency, and then reduces OMEP, improves the thermal efficiency, improves heat flux.For cooling system, can be set by optimization
Cooling jacket is counted, water route flow resistance loss is reduced, improves cooling efficiency, hot-spot is avoided, and then reduce FMEP, improves thermal effect
Efficient low loss water pump can also be used in rate, reduces friction loss, and then reduce FMEP.For lubricating system, variable machine can be used
Oil pump reduces mechanical loss, and the cooling oil mass of optimization piston, avoids temperature to reduce heat transfer loss, in turn when improving low speed
Reduce FMEP, improve the thermal efficiency, can also optimization design oil leab and lubricating oil draining, reduce mechanical loss, reach reduction
The purpose of FMEP.It, can be by using variable timing system, so that full working scope can obtain optimal distribution just for valve actuating mechanism
When, reduce pumping loss, to optimize internal EGR, reinforces utilizing air inlet inertia, reach and improve IPMP, reduce OMEP, improve heat
The effect etc. of flux.In short, various improvement or prioritization scheme can be attempted for each system or mechanism of the combustion model machine,
To guarantee that the Actual combustion parameter reaches the requirement of the target combustion parameter.Here specific improvement and prioritization scheme can root
It is formulated or is combined according to actual, be not limited solely to the above-mentioned embodiment referred to, details are not described herein.
Also referring to Fig. 3, it should be noted that in an alternative embodiment of the invention, described to join in the Actual combustion
When number meets preset evaluation criterion, the engine is designed using design scheme corresponding with the Actual combustion parameter, also
It can are as follows:
S2041, according to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine.
In embodiments of the present invention, it can be calculated according to the Actual combustion parameter and demarcate the actual performance of the engine
Parameter, wherein be given above specific corresponding to relationship, details are not described herein.
S2042, judges whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter.
S2043 if so, confirming that the Actual combustion parameter meets preset evaluation criterion, and is used and the reality
The corresponding design scheme of combustion parameter designs the engine.
In embodiments of the present invention, in order to guarantee precision problem during actual development, using the practical combustion
Parameter calibration actual performance parameter is burnt, if the actual performance parameter meets the requirement of the target capabilities parameter, such as described
Actual performance parameter and the target capabilities parameter be consistent or both between difference be less than preset error amount, then use institute
Design scheme designed combustion machine is stated, and uses the combustor in the design of the engine.
S2044, if it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
In embodiments of the present invention, if the Actual combustion parameter is unsatisfactory for the requirement of the target combustion parameter, needle
The design scheme is readjusted to each operating condition, wherein adjusting the design scheme can be to the above-mentioned design side provided
Case is adjusted, such as the full load mode, and valve overlap is adjusted or adjusts oil spout twice in Injection Control
Ratio etc. adjust the Actual combustion parameter, be also possible to that the other systems of the combustion model machine are improved or controlled
System, the present invention is not specifically limited.
Referring to Figure 4 together, it should be noted that in an alternative embodiment of the invention, described to join in the Actual combustion
When number meets preset evaluation criterion, the engine is designed using design scheme corresponding with the Actual combustion parameter, also
It can are as follows:
S3041, according to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine.
In embodiments of the present invention, it can be calculated according to the Actual combustion parameter and demarcate the actual performance of the engine
Parameter, wherein be given above specific corresponding to relationship, details are not described herein.
S3042, judges whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter.
S3043 if so, confirming that the Actual combustion parameter meets preset evaluation criterion, and is used and the reality
The corresponding design scheme of combustion parameter designs the engine.
In embodiments of the present invention, in order to guarantee precision problem during actual development, using the practical combustion
Parameter calibration actual performance parameter is burnt, if the actual performance parameter meets the requirement of the target capabilities parameter, such as described
Actual performance parameter and the target capabilities parameter be consistent or both between difference be less than preset error amount, then use institute
Design scheme designed combustion machine is stated, and uses the combustor in the design of the engine.
S3044, if it is not, then reformulating the target capabilities parameter of the engine.
In embodiments of the present invention, if the actual performance parameter can not be made to reach the mesh by adjusting design scheme
The requirement for marking performance parameter, then can reformulate the target capabilities parameter of the engine, and according to the Objective reformulated
Can parameter reacquire target combustion parameter, then by the combustion model machine operation acquisition Actual combustion parameter after, judge root
Whether the actual performance parameter according to the Actual combustion parameter calibration meets the requirement of target capabilities parameter, if not satisfied, weighing again
The target capabilities parameter of the engine is newly formulated, until the actual performance parameter of the final engine meets the Objective
The requirement of energy parameter.
In conclusion engine design method provided in an embodiment of the present invention, by the way that the target capabilities parameter is divided
For the target combustion parameter under different operating conditions, and by combustion model machine using a variety of design schemes carry out thermodynamics exploitation and
Verifying, so that the combustion system exploitation the most key to engine performance impacts is directly closed with the target capabilities parameter of engine
Connection gets up, and realizes effective Feedback between the two, improves the development efficiency of engine, and it is reciprocal to avoid inefficient process,
And plenty of time and exploitation funds can be saved.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Claims (7)
1. a kind of engine design method, which comprises the steps of:
Formulate the target capabilities parameter of engine；
The target capabilities parameter of the engine is divided into target combustion parameter of the engine under multiple operating conditions；Its
In, the multiple operating condition includes full load mode, partial load condition and catalyst converter ignition operating condition；
Corresponding design scheme is determined to combustion model mechanism for each operating condition, to acquire each operating condition in corresponding design scheme
Under Actual combustion parameter；Wherein, specifically: valve timing control scheme, the spray of combustion model machine are formulated for each operating condition
Oily control program and ignition control scheme；And the control combustion model machine is according to prepared valve timing control scheme, spray
Oily control program and the operation of ignition control scheme, to acquire the Actual combustion parameter under each operating condition；Specifically: in full load work
Under condition, for valve timing control scheme, larger valve overlap is used in low speed segment, realizes scavenging function；Middling speed section uses
Smaller valve overlap reduces internal EGR and inhibits pinking；High regime inlet and outlet gate delay is closed, and is mentioned using inlet and outlet inertia
High volumetric efficiency；For Injection Control scheme, using Injection Control scheme twice, start-phase is sprayed for the first time in induction stroke
Mid-early stage sprays 80% fuel oil；It is injected in compression stroke initial stage for the second time；For ignition control, control in knock threshold；In portion
Divide under load condition, for valve timing control scheme, middle small load condition improves internal EGR using larger valve overlap and subtracts
Small pumping loss；For Injection Control scheme, middle small load condition carries out fuel oil single injection event, big load work using smaller rail pressure
Condition is sprayed twice using larger rail pressure；For ignition control, medium and small load angle of ignition control is born greatly in MBT corresponding position
Lotus controls in knock threshold；Under catalyst converter ignition operating condition, for valve timing control scheme, exhaust valve is opened in advance, air inlet
Door, which is postponed, to be opened, and is improved delivery temperature reduction internal EGR and is improved combustion stability；For Injection Control scheme, using maximum rail
Pressure twice spray start-phase at induction stroke initial stage, spray 60% fuel oil by ejection schemes, first time；It is injected in and presses for the second time
The contracting journey later period；For ignition control, the very slow ignition timing of use；And
When the Actual combustion parameter meets preset evaluation criterion, using design side corresponding with the Actual combustion parameter
Case designs the engine.
2. engine design method according to claim 1, which is characterized in that the target capabilities parameter packet of the engine
Include maximum power, peak torque, characteristic operating point oil consumption, ignition operating condition discharge amount and ignition operating condition heat flux.
3. engine design method according to claim 2, which is characterized in that the target capabilities by the engine
Parameter is divided into target combustion parameter of the engine under different operating conditions, specifically:
By in the target capabilities parameter the maximum power and the peak torque be divided under the full load mode
Target combustion parameter；
The characteristic operating point oil consumption in the target capabilities parameter is divided into the combustion of the target under the partial load condition
Burn parameter；
By in the target capabilities parameter the ignition operating condition discharge amount and ignition operating condition heat flux be divided into the catalyst converter
Target combustion parameter under ignition operating condition.
4. engine design method according to claim 1, which is characterized in that the combustion model machine includes: air inlet system
System, exhaust system, oil supply system, ignition system, cooling system, lubricating system, valve actuating mechanism, crank link mechanism and air flue with
Combustion chamber.
5. engine design method according to any one of claims 1 to 4, which is characterized in that described in the practical combustion
When burning parameter meets preset evaluation criterion, start using described in design scheme corresponding with Actual combustion parameter design
Machine, specifically:
Judge whether the Actual combustion parameter meets the requirement of the target combustion parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and use and the Actual combustion parameter pair
The design scheme answered designs the engine；
If it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
6. engine design method according to any one of claims 1 to 4, which is characterized in that described in the practical combustion
When burning parameter meets preset evaluation criterion, start using described in design scheme corresponding with Actual combustion parameter design
Machine, specifically:
According to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine；
Judge whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and use and the Actual combustion parameter pair
The design scheme answered designs the engine；
If it is not, then readjusting the design scheme of the combustion model machine for each operating condition.
7. engine design method according to any one of claims 1 to 4, which is characterized in that described in the practical combustion
When burning parameter meets preset evaluation criterion, start using described in design scheme corresponding with Actual combustion parameter design
Machine, specifically:
According to the actual performance parameter of engine described in the Actual combustion parameter calibration of the engine；
Judge whether the actual performance parameter of the engine meets the requirement of the target capabilities parameter；
If so, confirming that the Actual combustion parameter meets preset evaluation criterion, and use and the Actual combustion parameter pair
The design scheme answered designs the engine；
If it is not, then readjusting the target capabilities parameter of the engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257802.5A CN104948329B (en) | 2015-05-18 | 2015-05-18 | A kind of engine design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510257802.5A CN104948329B (en) | 2015-05-18 | 2015-05-18 | A kind of engine design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104948329A CN104948329A (en) | 2015-09-30 |
| CN104948329B true CN104948329B (en) | 2018-12-25 |
Family
ID=54163298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510257802.5A Active CN104948329B (en) | 2015-05-18 | 2015-05-18 | A kind of engine design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104948329B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608105B (en) * | 2018-06-15 | 2021-11-23 | 上海汽车集团股份有限公司 | Automatic calibration method and device for inflation efficiency |
| CN110895617A (en) * | 2018-09-10 | 2020-03-20 | 广州汽车集团股份有限公司 | Parameter optimization method and device for gasoline engine combustion system and storage medium |
| CN113742953A (en) * | 2020-05-29 | 2021-12-03 | 广州汽车集团股份有限公司 | Method and device for analyzing and optimizing abnormal sound of vehicle, controller and storage medium |
| CN113829865B (en) * | 2020-06-24 | 2024-03-26 | 广州汽车集团股份有限公司 | Power assembly transmission system and power assembly transmission system matching method |
| CN115217660B (en) * | 2022-07-12 | 2023-07-21 | 广州汽车集团股份有限公司 | Method and device for correcting inflation efficiency, equipment and computer readable storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010003706A1 (en) * | 2009-04-24 | 2010-10-28 | Man Diesel & Turbo Se | Method for designing of engine geometry of internal combustion engine, involves defining design-constraint for engine geometry, and defining design-target dimension for engine geometry |
| CN104063553A (en) * | 2014-07-04 | 2014-09-24 | 上汽通用五菱汽车股份有限公司 | Optimization design method of combustion system of engine |
-
2015
- 2015-05-18 CN CN201510257802.5A patent/CN104948329B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010003706A1 (en) * | 2009-04-24 | 2010-10-28 | Man Diesel & Turbo Se | Method for designing of engine geometry of internal combustion engine, involves defining design-constraint for engine geometry, and defining design-target dimension for engine geometry |
| CN104063553A (en) * | 2014-07-04 | 2014-09-24 | 上汽通用五菱汽车股份有限公司 | Optimization design method of combustion system of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104948329A (en) | 2015-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104948329B (en) | A kind of engine design method | |
| CN100416065C (en) | Method and apparatus for gaseous fuel injection into IC engine and controlling combustion | |
| CN101892921B (en) | Fuel-based injection control | |
| CN105003346B (en) | Method for operating the compression ignition engine of direct-injection spark auxiliary | |
| CN100540861C (en) | A kind of compression ignition engine and How It Works thereof | |
| CN104100396B (en) | Method and system for engine control | |
| CN101035975B (en) | Method for mid load operation of auto-ignition combustion | |
| CN103201478B (en) | The method of the combustion process of internal-combustion engine and controlling combustion engine | |
| CN102985672B (en) | The fuel injection control system of internal combustion engine | |
| CN102444492B (en) | Engine operating method | |
| CN100529336C (en) | Multistage fuel-injection internal combustion engine | |
| CN103511160B (en) | The method and system controlled for advanced ignition | |
| CN109854391B (en) | Engine braking method for improving vehicle retarding | |
| CN105545516B (en) | The control device of internal combustion engine | |
| JP5916840B2 (en) | Engine combustion control at low load via fuel reactive stratification | |
| CN104047766A (en) | Compression self-ignition engine | |
| US20130218440A1 (en) | System and method for injecting fuel | |
| CN112761780B (en) | Lean combustion system and method and engine | |
| RU2635736C2 (en) | Internal combustion engine with forced ignition and method to control thereof | |
| CN105545459A (en) | METHOD FOR OPERATING COMPRESSION IGNITION ENGINE and COMPRESSION IGNITION ENGINE | |
| CN106414970B (en) | Control equipment for internal combustion engine | |
| WO2012028944A1 (en) | Fuel control apparatus for internal combustion engine | |
| CN106414971A (en) | Control apparatus for internal combustion engine | |
| CN104975963A (en) | Methods for turbocharged engine with cylinder deactivation and variable valve timing | |
| CN101839166B (en) | Lateral-swirl combustion chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |