CN110500191A - Throttle control method and device - Google Patents
Throttle control method and device Download PDFInfo
- Publication number
- CN110500191A CN110500191A CN201910890049.1A CN201910890049A CN110500191A CN 110500191 A CN110500191 A CN 110500191A CN 201910890049 A CN201910890049 A CN 201910890049A CN 110500191 A CN110500191 A CN 110500191A
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- Prior art keywords
- engine
- torque demand
- revolving speed
- condition
- throttle
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
- F02D2200/602—Pedal position
Abstract
The present invention passes through a kind of throttle control method and device that provide, after determining that engine is in middle high loaded process state, when engine enters fuel cut-off condition, the throttle opening setting value obtained according to current booster pressure and current rotating speed inquiry preset table, and adjust the closed position of control air throttle in time according to throttle opening setting value, relatively closed space is not re-formed between throttle valve and booster, booster is avoided surge phenomenon occur.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of throttle control methods and device.
Background technique
To realize Engine Downsizing, high power, low oil consumption design, the application of supercharging technology on the engine is more and more general
Time.When high engine speeds operation, the boost pressure of booster and the revolving speed of engine are related, the opening value of engine air throttle
It is to be determined by torque demand.
Due to the complexity of vehicle operating condition, booster need to do adaptability design to different operating conditions.When vehicle is in middle high load capacity
Anxious accelerator releasing is descended in operating condition work, at this time closed throttle, will gather a large amount of height before air throttle and after blower outlet in pipeline
It calms the anger body, such as gas is discharged not in time, high pressure gas can make booster generate surge noise, may be damaged and start when serious
Machine air inlet pipe and booster.
Summary of the invention
The purpose of the present invention is to provide a kind of throttle control method and devices, are existed with solving booster in the prior art
There is the problem of surge under fuel cut-off condition.
In a first aspect, the present invention provides a kind of throttle control method, comprising:
Obtain the boost pressure and revolving speed of engine；
According to the boost pressure and revolving speed, judge whether the engine is in middle high loaded process state；
If it is determined that the engine is in middle high loaded process state, then institute is judged according to the torque demand of the engine
State whether engine enters fuel cut-off condition；
When determining that the engine enters fuel cut-off condition, the current booster pressure and current rotating speed of engine are obtained；And
The throttle opening setting value obtained according to the current booster pressure and current rotating speed inquiry preset table；
According to the throttle opening set value calculation air throttle closed position.
In a kind of possible design, the torque demand according to the engine judges whether the engine enters
Fuel cut-off condition, comprising:
If the torque demand of the engine is not present, determine that the engine enters fuel cut-off condition；
Wherein, the torque demand of the engine includes speed closed loop torque demand, pedal demand torque or external torque
Demand.
In a kind of possible design, it is described according to the throttle opening set value calculation air throttle closed position it
Afterwards, further includes:
When the engine is in following at least one default operating condition, restore the engine air throttle be positive it is standing fixed
Value；
Wherein the default operating condition includes:
When the revolving speed of the engine is less than preset first scalar quantity, and the duration was more than the first nominal time；
When the boost pressure of the engine is less than preset second scalar quantity, and the duration was more than the second nominal time
When；
In the presence of the torque demand of the engine.
It is described according to the boost pressure and revolving speed in a kind of possible design, judge whether the engine is in
Middle high loaded process state, comprising:
The judgment threshold of the engine is obtained according to the revolving speed；
If the boost pressure is more than or equal to the judgment threshold of the engine, it is determined that the engine is in middle high negative
Lotus operating condition.
In a kind of possible design, the decision threshold that the engine is determined according to the revolving speed, comprising:
CURE is inquired according to the revolving speed, obtains the corresponding judgment threshold of the revolving speed.
Second aspect, the embodiment of the present invention provide a kind of air throttle control device, described in any item based on first aspect
Throttle control method, comprising:
Module is obtained, for obtaining the boost pressure and revolving speed of engine；
First judgment module, for judging whether the engine is in middle high negative according to the boost pressure and revolving speed
Lotus operating condition；
Second judgment module is used to then start according to if it is determined that the engine is in middle high loaded process state
The torque demand of machine judges whether the engine enters fuel cut-off condition；
Enquiry module, for obtaining the current booster pressure of engine when determining that the engine enters fuel cut-off condition
And current rotating speed；And the throttle opening setting value obtained according to the current booster pressure and current rotating speed inquiry preset table；
Control module, for according to the throttle opening set value calculation air throttle closed position.
In a kind of possible design, second judgment module includes determining whether unit:
If the torque demand of the engine is not present, the judging unit determines that the engine enters oil-break work
Condition；Wherein, the torque demand of the engine includes speed closed loop torque demand, pedal demand torque or external torque demand.
In a kind of possible design, further includes: recovery module is specifically used for being in following at least one in the engine
When kind of default operating condition, the recovery module is positive standing definite value for restoring the engine air throttle；The wherein default work
Condition includes: when the revolving speed of the engine is less than preset first scalar quantity, and the duration was more than the first nominal time；When
The boost pressure of the engine be less than preset second scalar quantity, and the duration be more than the second nominal time when；When described
In the presence of the torque demand of engine.
The third aspect, the embodiment of the present invention provide a kind of air throttle control equipment, comprising: at least one processor, storage
Device；
The memory stores computer executed instructions；
At least one described processor executes the computer executed instructions of memory storage so that it is described at least one
Processor executes such as the described in any item throttle control methods of first aspect.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, the computer-readable storage medium
It is stored with computer executed instructions in matter, when processor executes the computer executed instructions, realizes as first aspect is any
Throttle control method described in.
A kind of throttle control method and device provided in an embodiment of the present invention, by engine in middle high loaded process
When entering fuel cut-off condition afterwards, the closed position of the air throttle of adjustment control in time does not re-form phase between throttle valve and booster
To closed space, booster is avoided surge phenomenon occur.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is throttle control configuration diagram provided in an embodiment of the present invention；
Fig. 2 is throttle control method flow chart one provided in an embodiment of the present invention；
Fig. 3 is throttle control method flowchart 2 provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram one of air throttle control device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram two of air throttle control device provided in an embodiment of the present invention；
Fig. 6 is the hardware structural diagram of air throttle control equipment provided in an embodiment of the present invention.
Specific embodiment
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate idea of the invention.
Fig. 1 is throttle control configuration diagram provided in an embodiment of the present invention, as shown in Figure 1: in the embodiment of the present invention
Throttle control framework includes: electronic control unit (Electronic Control Unit, ECU) 101, engine 102, increases
Depressor 103 and air throttle 104.ECU101 is connect with engine 102, booster 103 and air throttle 104 respectively, and ECU101 is responsible for
Control parameter is transmitted separately to engine 102, booster 103 and air throttle 104, engine 102, booster 103 and solar term
Door 104 executes scheduled control function respectively.
ECU101 is extensive by microprocessor, memory, input/output interface, analog-digital converter and shaping, driving etc.
Integrated circuit composition, for connecting numerous imput output circuits, the various data that monitor input at any time (for example are braked, are changed
Shelves etc.) and automobilism various states (acceleration, skidding, oil consumption etc.).1 of automobile engine 02 is that the dress of power is provided for automobile
It sets, common gasoline engine and diesel engine belong to reciprocating piston internal combustion engine, are to convert piston motion for the chemical energy of fuel
Mechanical energy and external output power.Booster 103 compresses air in advance before feeding cylinder, with improve atmospheric density,
Increase air inflow.
In some scenes, during high-speed running automobile, when engine 102 therefrom heavy-duty service operating condition to oil-break
When operating condition switches, since the control of 104 aperture of air throttle is determined by torque demand, if so this subject throttle 104 does not have
The state almost closed will be in by having when other torque demands, supercharger outlet to formation closing suddenly between air throttle 104
Volume space, at this time since booster 103 drives flow to reduce, pressurized flow increases, and causes 103 both ends of booster
The phenomenon that speed is uneven or flows backwards, so that surge phenomenon occur.The present invention is by working as engine 102 from heavy-duty service
When operating condition switches to fuel cut-off condition, 104 aperture of active accommodation air throttle does not re-form between throttle valve 104 and booster 103
Relatively closed space, to prevent surge phenomenon.
Fig. 2 is throttle control method flow chart one provided in an embodiment of the present invention.The execution master of the method for the present embodiment
Body can be the ECU in Fig. 1, as shown in Fig. 2, throttle control method the following steps are included:
S21: the boost pressure and revolving speed of engine are obtained.
The operating status of engine is mainly related with the boost pressure of booster and engine speed, can be by obtaining in real time
The operating status of the rotation speed monitoring engine of the boost pressure and engine of engine.
S22: according to the boost pressure and revolving speed, judge whether the engine is in middle high loaded process state.
If the boost pressure of booster and the revolving speed of engine are greater than the calibration value of middle high load capacity, can determine whether at engine
In middle high loaded process state.When determining that engine is in middle high loaded process state, illustrate that automobile is currently at high speed row
In the case of sailing, the revolving speed of engine is greater than rated engine speed value.High load capacity calibration value can difference in different types of engine.
S23: if it is determined that the engine is in middle high loaded process state, then sentenced according to the torque demand of the engine
Whether the engine that breaks enters fuel cut-off condition.
The operating condition of engine and the torque demand of engine are related, can judge to start according to the torque demand of engine
Whether machine enters fuel cut-off condition.After determining that engine is in middle high loaded process state, if engine enters oil-break work at this time
Condition, booster is it is possible that surge phenomenon.
S24: it when determining that the engine enters fuel cut-off condition, obtains the current booster pressure of engine and works as forward
Speed；And the throttle opening setting value obtained according to the current booster pressure and current rotating speed inquiry preset table.
When engine is in middle high loaded process state, if engine enters fuel cut-off condition at this time, it is pressurized in order to prevent
There is surge phenomenon in device, the current booster pressure and current rotating speed of engine can be first obtained, further according to the current booster of engine
Pressure and current rotating speed obtain the setting value of throttle opening by inquiry preset table.Wherein, the preset table turns for engine
Speed and the relationship table of engine boost pressure and throttle opening value can be worked as by preset table according to known engine
What preceding revolving speed and engine boost pressure inquiry preset table obtained being suitable for present engine operating condition can prevent booster from occurring
The setting value of the throttle opening of surge phenomenon, the throttle opening demand of different rotating speeds and the corresponding pre- anti-surge of boost pressure
It is worth different.
S25: according to the throttle opening set value calculation air throttle closed position.
Under fuel cut-off condition, air throttle unlatching can reduce pumping loss to a certain extent, if engine is at this time
Under exhaust brake operating condition, braking effect can be increased to a certain extent by opening air throttle increase air inlet at this time.By by engine
Current boost pressure and engine speed obtain the setting value of throttle opening, and the setting of the throttle opening according to acquisition
The closed position of value control air throttle, eliminates surge phenomenon.
From above-described embodiment it is found that after by determining that engine is in middle high loaded process state, break when engine enters
When oily operating condition, according to the throttle opening setting value that current booster pressure and current rotating speed inquiry preset table obtain, and according to section
Valve opening setting value adjusts the closed position of control air throttle in time, does not re-form between throttle valve and booster relatively close
The space closed, avoids booster from surge phenomenon occur.
In one embodiment of the invention, start according to the judgement of the torque demand of the engine in step S23
Whether machine enters fuel cut-off condition, specifically includes:
If the torque demand of the engine is not present, determine that the engine enters fuel cut-off condition；Wherein, the hair
The torque demand of motivation includes speed closed loop torque demand, pedal demand torque or external torque demand.
Wherein, since the control of throttle opening is determined by torque demand, when torque demand is not present, hair
Motivation enters fuel cut-off condition, if this subject throttle will be in the state almost closed without other requests, it is possible to cause
The generation of surge phenomenon.
From above-described embodiment it is found that torque demand by judging whether there is engine, can accurately determine and start
Machine is in fuel cut-off condition and avoids the occurrence of surge phenomenon so as to timely adjust the setting value of air throttle.
In one embodiment of the invention, it is closed in step S25 according to the throttle opening set value calculation air throttle
After coincidence is set, further includes:
When the engine is in following at least one default operating condition, restore the engine air throttle be positive it is standing fixed
Value；Wherein the default operating condition includes: when the revolving speed of the engine is more than less than preset first scalar quantity, and duration
When the first nominal time；When the boost pressure of the engine is less than preset second scalar quantity, and the duration is more than second
When the nominal time；In the presence of the torque demand of the engine.
Wherein, when the revolving speed of engine is less than preset first scalar quantity and the duration was more than the first nominal time；
Alternatively, the boost pressure of engine be less than preset second scalar quantity, and the duration be more than the second nominal time when, illustrate vapour
Vehicle is currently at underrun situation, and there is no a possibility that surge occur；When there are the torque demand of engine, explanation
Automobile is not belonging to fuel cut-off condition, needs to run according to the torque demand of driver.The air throttle that can restore engine at this time is positive
Standing definite value.Any one situation of three cases above all indicates that current booster device has alleviated surge phenomenon, improves
The operating condition of engine.
From above-described embodiment it is found that after according to the throttle opening set value calculation air throttle closed position, by
Gradually alleviate surge phenomenon, the opening value that can restore engine air throttle is positive standing definite value, guarantees automobile engine with most
Good state of a control continues to travel.
Fig. 3 is throttle control method flowchart 2 provided in an embodiment of the present invention, on the basis of Fig. 2 embodiment, such as
Shown in Fig. 3, step S22 judges whether the engine is in middle high loaded process state according to the boost pressure and revolving speed,
It specifically includes:
S31: the judgment threshold of the engine is obtained according to the revolving speed.
It can determine whether the operating status of present engine by the revolving speed of engine, and the revolving speed of engine influences booster
Boost pressure value, the levy judgment threshold of boost pressure that motivation is in middle and high load working condition of different rotating speeds following table are different,
Therefore the judgment threshold of the boost pressure of engine under the revolving speed is obtained according to engine speed, it is ensured that middle and high load working condition
Judgement it is more accurate.
Specifically, CURE can be inquired according to the revolving speed, obtains the corresponding judgment threshold of the revolving speed.
S32: if the boost pressure is more than or equal to the judgment threshold of the engine, it is determined that during the engine is in
High loaded process state.
When engine boost pressure be greater than the corresponding judgment threshold of current rotating speed, then illustrate that engine is in middle high load capacity
Operating status.When engine is under middle heavy-duty service state, if when engine enters fuel cut-off condition it is possible that
Surge phenomenon.
From above-described embodiment it is found that corresponding engine judgment threshold can be obtained according to the revolving speed of engine, if obtain
When the boost pressure of engine is more than or equal to the judgment threshold of engine, then it can determine under current rotating speed, engine is in
Middle high loaded process state.
Fig. 4 is the structural schematic diagram one of air throttle control device provided in an embodiment of the present invention.As shown in figure 4, the solar term
Controlling device for doors 40 includes: to obtain module 401, first judgment module 402, the second judgment module 403, enquiry module 404 and control
Molding block 405.
Module 401 is obtained, for obtaining the boost pressure and revolving speed of engine.
First judgment module 402, for judging whether the engine is in middle height according to the boost pressure and revolving speed
Load operating state.
Second judgment module 403, for if it is determined that the engine is in middle high loaded process state, then according to the hair
The torque demand of motivation judges whether the engine enters fuel cut-off condition.
Enquiry module 404, for obtaining the current booster pressure of engine when determining that the engine enters fuel cut-off condition
Power and current rotating speed；And it is set according to the throttle opening that the current booster pressure and current rotating speed inquiry preset table obtain
Value.
Control module 405, for according to the throttle opening set value calculation air throttle closed position.
Device provided in this embodiment can be used for executing the technical solution of above method embodiment, realization principle and skill
Art effect is similar, and details are not described herein again for the present embodiment.
In one embodiment of the invention, second judgment module 403, if specifically for the torque of the engine
Demand is not present, then determines that the engine enters fuel cut-off condition.Wherein, the torque demand of the engine includes speed closed loop
Torque demand, pedal demand torque or external torque demand.
Fig. 5 is the structural schematic diagram two of air throttle control device 40 provided in an embodiment of the present invention.In the base of Fig. 4 embodiment
On plinth, the air throttle control device 40 further include:
Recovery module 406, for restoring the engine when the engine is in following at least one default operating condition
Air throttle is positive standing definite value；Wherein the default operating condition includes: when the revolving speed of the engine is less than preset first calibration
Amount, and the duration be more than the first nominal time when；When the engine boost pressure be less than preset second scalar quantity, and
When duration was more than the second nominal time；In the presence of the torque demand of the engine.
In one embodiment of the invention, the first judgment module 402 is specifically used for obtaining institute according to the revolving speed
State the judgment threshold of engine；If the boost pressure is more than or equal to the judgment threshold of the engine, it is determined that described to start
Machine is in middle high loaded process state.
In one embodiment of the invention, the first judgment module 402 is specifically also used to be inquired according to the revolving speed
CURE obtains the corresponding judgment threshold of the revolving speed.
Fig. 6 is the hardware structural diagram of air throttle control equipment provided in an embodiment of the present invention.As shown in fig. 6, this reality
The air throttle control equipment 60 for applying example includes: processor 601 and memory 602；Wherein:
Memory 602, for storing computer executed instructions；
Processor 601, for executing the computer executed instructions of memory storage, to realize ECU101 in above-described embodiment
Performed each step.
It specifically may refer to the associated description in preceding method embodiment.
In a kind of possible design, memory 602 can also be integrated in one with processor 601 either independent
It rises.
When memory 602 is independently arranged, which further includes bus 603, for connecting the storage
Device 602 and processor 601.
The embodiment of the present invention also provides a kind of computer readable storage medium, stores in the computer readable storage medium
There are computer executed instructions, when processor executes the computer executed instructions, realizes throttle control as described above
Method.
In several embodiments provided by the present invention, it should be understood that disclosed device and method can pass through it
Its mode is realized.For example, apparatus embodiments described above are merely indicative, for example, the division of the module, only
Only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple modules can combine or
It is desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or discussed it is mutual it
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or module
It connects, can be electrical property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, aobvious as module
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of the modules therein can be selected to realize this embodiment scheme according to the actual needs.
It, can also be in addition, each functional module in each embodiment of the present invention can integrate in one processing unit
It is that modules physically exist alone, can also be integrated in one unit with two or more modules.Above-mentioned module at
Unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
The above-mentioned integrated module realized in the form of software function module, can store and computer-readable deposit at one
In storage media.Above-mentioned software function module is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) or processor execute described in each embodiment of the application
The part steps of method.
It should be understood that above-mentioned processor can be central processing unit (Central Processing Unit, abbreviation CPU),
It can also be other general processors, digital signal processor (Digital Signal Processor, abbreviation DSP), dedicated
Integrated circuit (Application Specific Integrated Circuit, abbreviation ASIC) etc..General processor can be
Microprocessor or the processor are also possible to any conventional processor etc..It can be in conjunction with the step of invention disclosed method
Be embodied directly in hardware processor and execute completion, or in processor hardware and software module combination execute completion.
Memory may include high speed RAM memory, it is also possible to and it further include non-volatile memories NVM, for example, at least one
Magnetic disk storage can also be USB flash disk, mobile hard disk, read-only memory, disk or CD etc..
It is total that bus can be industry standard architecture (Industry Standard Architecture, abbreviation ISA)
Line, external equipment interconnection (Peripheral Component Interconnect, abbreviation PCI) bus or extension industrial standard
Architecture (Extended Industry Standard Architecture, abbreviation EISA) bus etc..Bus can be divided into
Address bus, data/address bus, control bus etc..For convenient for indicating, the bus in illustrations does not limit only one always
Line or a type of bus.
Above-mentioned storage medium can be by any kind of volatibility or non-volatile memory device or their combination
It realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable
Read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory,
Disk or CD.Storage medium can be any usable medium that general or specialized computer can access.
A kind of illustrative storage medium is coupled to processor, believes to enable a processor to read from the storage medium
Breath, and information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.It processor and deposits
Storage media can be located at specific integrated circuit (Application Specific Integrated Circuits, abbreviation ASIC)
In.Certainly, pocessor and storage media can also be used as discrete assembly and be present in electronic equipment or main control device.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to
The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey
When being executed, execution includes the steps that above-mentioned each method embodiment to sequence；And storage medium above-mentioned include: ROM, RAM, magnetic disk or
The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of throttle control method characterized by comprising
Obtain the boost pressure and revolving speed of engine；
According to the boost pressure and revolving speed, judge whether the engine is in middle high loaded process state；
If it is determined that the engine is in middle high loaded process state, then the hair is judged according to the torque demand of the engine
Whether motivation enters fuel cut-off condition；
When determining that the engine enters fuel cut-off condition, the current booster pressure and current rotating speed of engine are obtained；And according to
The throttle opening setting value that the current booster pressure and current rotating speed inquiry preset table obtain；
According to the throttle opening set value calculation air throttle closed position.
2. throttle control method according to claim 1, which is characterized in that the torque need according to the engine
It asks and judges whether the engine enters fuel cut-off condition, comprising:
If the torque demand of the engine is not present, determine that the engine enters fuel cut-off condition；
Wherein, the torque demand of the engine includes speed closed loop torque demand, pedal demand torque or external torque demand.
3. throttle control method according to claim 1, which is characterized in that described to be set according to the throttle opening
After value control air throttle closed position, further includes:
When the engine is in following at least one default operating condition, restores the engine air throttle and be positive standing definite value；
Wherein the default operating condition includes:
When the revolving speed of the engine is less than preset first scalar quantity, and the duration was more than the first nominal time；
When the boost pressure of the engine is less than preset second scalar quantity, and the duration was more than the second nominal time；
In the presence of the torque demand of the engine.
4. throttle control method according to claim 1, which is characterized in that it is described according to the boost pressure and turn
Speed, judges whether the engine is in middle high loaded process state, comprising:
The judgment threshold of the engine is obtained according to the revolving speed；
If the boost pressure is more than or equal to the judgment threshold of the engine, it is determined that the engine is in middle high load capacity fortune
Turn state.
5. throttle control method according to claim 4, which is characterized in that described to determine the hair according to the revolving speed
The decision threshold of motivation, comprising:
CURE is inquired according to the revolving speed, obtains the corresponding judgment threshold of the revolving speed.
6. air throttle control device according to claim 1 characterized by comprising
Module is obtained, for obtaining the boost pressure and revolving speed of engine；
First judgment module, for judging whether the engine is in middle high load capacity fortune according to the boost pressure and revolving speed
Turn state；
Second judgment module, for if it is determined that the engine is in middle high loaded process state, then according to the engine
Torque demand judges whether the engine enters fuel cut-off condition；
Enquiry module, for obtaining the current booster pressure of engine and working as when determining that the engine enters fuel cut-off condition
Preceding revolving speed；And the throttle opening setting value obtained according to the current booster pressure and current rotating speed inquiry preset table；
Control module, for according to the throttle opening set value calculation air throttle closed position.
7. air throttle control device according to claim 6, which is characterized in that
Second judgment module, if being not present specifically for the torque demand of the engine, the judging unit determines
The engine enters fuel cut-off condition；Wherein, the torque demand of the engine includes speed closed loop torque demand, pedal demand
Torque or external torque demand.
8. air throttle control device according to claim 6, which is characterized in that further include:
Recovery module is specifically used for restoring the engine section when the engine is in following at least one default operating condition
Valve is positive standing definite value；Wherein the default operating condition include: when the engine revolving speed be less than preset first scalar quantity,
And the duration be more than the first nominal time when；When the boost pressure of the engine is less than preset second scalar quantity, and hold
When the continuous time was more than the second nominal time；In the presence of the torque demand of the engine.
9. a kind of air throttle control equipment characterized by comprising at least one processor and memory；
The memory stores computer executed instructions；
At least one described processor executes the computer executed instructions of the memory storage, so that at least one described processing
Device executes such as throttle control method described in any one of claim 1 to 5.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer in the computer readable storage medium
It executes instruction, when processor executes the computer executed instructions, realizes such as solar term described in any one of claim 1 to 5
Door control method.
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| CN201910890049.1A CN110500191A (en) | 2019-09-20 | 2019-09-20 | Throttle control method and device |
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| CN110925106A (en) * | 2019-12-11 | 2020-03-27 | 潍柴动力股份有限公司 | Control method and device of throttle valve of engine, electronic equipment and engine |
| CN114718747A (en) * | 2022-03-31 | 2022-07-08 | 东风汽车集团股份有限公司 | Throttle effective area calculation method, device, equipment and readable storage medium |
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