CN107100717A - Engine booster control method and system - Google Patents
Engine booster control method and system Download PDFInfo
- Publication number
- CN107100717A CN107100717A CN201710298662.5A CN201710298662A CN107100717A CN 107100717 A CN107100717 A CN 107100717A CN 201710298662 A CN201710298662 A CN 201710298662A CN 107100717 A CN107100717 A CN 107100717A
- Authority
- CN
- China
- Prior art keywords
- pressurizing unit
- controller
- pressure
- accelerator pedal
- engine
- 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.)
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Classifications
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D23/00—Controlling engines characterised by their being supercharged
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B2037/122—Control of rotational speed of the pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a kind of engine booster control method, including：The actual pressure that detection accelerator pedal signal and Electron pressurizing unit are exported in real time；If it is not 0 to detect the accelerator pedal signal, inquiry accelerator pedal signal and engine torque homologous thread obtain target torque；According to the target torque, inquiry moment of torsion and air inflow homologous thread obtain target inlet air amount；According to the target inlet air amount, Electron pressurizing unit characteristic curve is inquired about, goal pressure is obtained；According to the actual pressure and the relation of the goal pressure, the rotating speed of Electron pressurizing unit is controlled, so that the actual pressure is equal to the goal pressure.Emissions requirements of the engine under low-speed region or even any rotary speed area ensure that by the present invention, and it can be intended to set up accurate and quick dynamic response relation between vehicle acceleration in driver, so as to lift engine efficiency and improve driving experience.The invention also discloses a kind of engine booster control system.
Description
Technical field
The present invention relates to field of engine control, more particularly to a kind of engine booster control method and system.
Background technology
Driver for vehicle motor requirement with the popularization more and more higher of vehicle, do not require nothing more than and provide powerful dynamic
Power, in addition it is also necessary to ask engine to possess the discharge of relatively low oil consumption and cleaning.This is accomplished by engine can under various operating modes
Most efficient region is operated in, therefore, the intake efficiency for improving engine is particularly important.Engine supercharging system is a kind of
The charging efficiency into engine can be improved, so as to improve the project and measures of mean effective pressure.
Single mechanical turbine pressure charging system being used traditional engine supercharging system, it can be carried to a certain extent more
High air inflow, however, because turbocharged engine can not obtain enough exhausted air quantities in low rotation speed area, in this region tradition
Turbocharging turbo lag phenomenon occurs, engine low side moment of torsion be able to not will get a promotion, further, since turbine electronics
Booster is transformed into air inlet again from exhaust needs the regular hour, can also cause the problem of dynamic response is poor.
The content of the invention
It is an object of the invention to provide a kind of engine booster control method and system, deposited for solving conventional boosting system
Low speed low torque and dynamic response it is poor the problem of.
The technical solution adopted by the present invention is as follows：
In vehicle operation, accelerator pedal signal is detected in real time；
If detecting the output signal of the gas pedal, inquiry accelerator pedal signal is corresponding with engine torque bent
Line, obtains target torque；
According to the target torque, inquiry moment of torsion and air inflow homologous thread obtain target inlet air amount；
According to the target inlet air amount, Electron pressurizing unit characteristic curve is inquired about, goal pressure is obtained；
Obtain the actual pressure of Electron pressurizing unit outlet；
According to the actual pressure and the relation of the goal pressure, the rotating speed of Electron pressurizing unit is controlled, so that
The actual pressure is equal to the goal pressure.
Preferably, in addition to：If being not detected by the output signal of the gas pedal, trigger the Electron pressurizing unit and stop
Only work, and open air inlet by-passing valve.
Preferably, in addition to：The dump energy of battery is gathered in real time, when threshold value of the dump energy less than setting
Afterwards, control generator is powered to Electron pressurizing unit.
Preferably, the accelerator pedal signal includes：Accelerator open degree and or throttle slope.
A kind of engine booster control system, including：Controller, and be connected with the controller Electron pressurizing unit,
Outlet pressure of the booster sensor and accelerator pedal sensor；
The controller detects accelerator pedal signal in real time by the accelerator pedal sensor, and is detecting the oil
During the output signal of door pedal, the controller obtains goal pressure according to the accelerator pedal signal, calculating；
The controller is additionally operable to obtain the actual pressure that the outlet pressure of the booster sensor is sent, and according to described
Actual pressure and the relation of the goal pressure, control the Electron pressurizing unit rotating speed, so that the actual pressure is equal to described
Goal pressure.
Preferably, in addition to：The automatically controlled by-passing valve being connected with the controller；The controller is not detected by the throttle
During the output signal of pedal, trigger the Electron pressurizing unit and shut down, and control the automatically controlled by-passing valve to open.
Preferably, in addition to：The electrical quantity sensor being connected with the controller, and respectively with the controller and described
The generator of Electron pressurizing unit connection；The electrical quantity sensor is used for the dump energy for detecting battery in real time, and will be described surplus
Remaining electricity is sent to the controller；The power threshold that the controller is additionally operable to by the dump energy with setting is compared
Compared with, and after dump energy is less than the power threshold, triggering generator is powered to Electron pressurizing unit.
Preferably, the controller is according to the accelerator pedal signal, and calculating obtains goal pressure, including：The control
Device calculates mesh according to the accelerator pedal signal detected, inquiry accelerator pedal signal and engine torque homologous thread
Mark moment of torsion；Further according to the target torque, inquiry moment of torsion and air inflow homologous thread calculate target inlet air amount；Further according to institute
Target inlet air amount is stated, the characteristic curve of the Electron pressurizing unit is inquired about, calculating obtains the goal pressure.
Preferably, the accelerator pedal signal includes：Accelerator open degree and or throttle slope.
Preferably, the controller is control unit of engine.
The present invention does not result in air inlet sluggishness not only, and disclosure satisfy that engine to air inflow and the need of intake efficiency
Ask, it is ensured that emissions requirements of the engine under low-speed region or even any rotary speed area, further, it is possible to be intended to and car in driver
Accurate and quick dynamic response relation is set up between acceleration, according to upper, the present invention effectively improves engine efficiency, and
Improve the driving experience of user.
Brief description of the drawings
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
Step description, wherein：
The flow chart for the engine booster control method that Fig. 1 provides for the present invention；
The flow chart of the embodiment for the engine booster control method that Fig. 2 provides for the present invention；
The block diagram of one preferred embodiment of the engine booster control system that Fig. 3 provides for the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
The invention provides a kind of embodiment of engine booster control method, Fig. 1 is refer to, and combines Fig. 2, its is specific
Content includes as follows：
Step S1, in vehicle operation, accelerator pedal signal is detected in real time；
If step S2, the output signal for detecting gas pedal, inquiry accelerator pedal signal is corresponding with engine torque
Curve, obtains target torque；You need to add is that, first, gas pedal has output signal, that is, driver is represented to travel speed
There is certain demand for control, drive gas pedal to act；Second, the target torque is the output letter with gas pedal
Number corresponding required engine torque；Third, accelerator pedal signal described herein can be that accelerator open degree or throttle are oblique
Rate, the two can also be referred to simultaneously；Fourth, accelerator pedal signal and engine torque homologous thread, can be accelerator open degree and
Moment of torsion homologous thread or throttle slope and moment of torsion homologous thread, can also be accelerator open degree and throttle slope and moment of torsion
Homologous thread, also, above-mentioned curve can pass through bench test or throttle demarcation acquisition.
In practical operation, step S2 can also be made it may be further contemplated, wherein, if being not detected by the defeated of gas pedal
Go out signal, that is to say that expression driver does not drive gas pedal to act, now vehicle is likely to be at idling, slided or equivalent work
Condition, then, then can trigger Electron pressurizing unit and be stopped, and open the air inlet by-passing valve of engine, by natural inflow or
The usual manners such as mechanical turbine are supplied.
Step S3, the target torque according to foregoing acquisition, inquiry moment of torsion and air inflow homologous thread, obtain target inlet air
Amount；Need exist for supplement is the relations that engine torque and required air inflow are equity under nominal situation, therefore similarly,
Moment of torsion can also be obtained with air inflow homologous thread by engine rig test.
Step S4, the target inlet air amount according to foregoing acquisition, inquire about Electron pressurizing unit characteristic curve, obtain goal pressure；
Electron pressurizing unit characteristic curve mentioned here, is corresponding with pressure at expulsion by the capacity of the Electron pressurizing unit of Experimental Calibration
Curve, and preceding aim air inflow refers to the air inflow needed for engine, that is to say the exhaust of Electron pressurizing unit described herein
Amount.
Step S5, the actual pressure for obtaining Electron pressurizing unit outlet；It is to be herein pointed out can be in practical operation
In vehicle operation, detection Electron pressurizing unit outlet pressure, but consider for energy-conservation in real time is taken in the solution of the present invention
, after foregoing calculating obtains goal pressure, then go to obtain the actual pressure.
Step S6, the actual pressure exported according to Electron pressurizing unit and goal pressure relation, turn to Electron pressurizing unit
Speed is controlled, so that the actual pressure is equal to the goal pressure.Specifically, if actual pressure is more than goal pressure,
Reduction of speed control then is carried out to Electron pressurizing unit, whereas if actual pressure is less than goal pressure, then Electron pressurizing unit risen
Speed control, if actual pressure is equal to goal pressure, to keeping Electron pressurizing unit rotating speed.
By above-mentioned steps, air inlet sluggishness is not resulted in not only, and disclosure satisfy that engine is imitated to air inflow and air inlet
The demand of rate, it is ensured that emissions requirements of the engine under low-speed region or even any rotary speed area, further, it is possible to by gas pedal
State is accurately corresponding with engine output torque, that is to say driver be intended to and vehicle acceleration between establish it is accurate and fast
The dynamic response relation of speed, it is of the invention effectively to improve engine efficiency according to upper, and improve the driving experience of user.
In addition, in the preferred scheme of the present invention, in order to ensure Electron pressurizing unit normal work, it is also contemplated that adopt
Take following steps：In vehicle travel process, the dump energy of collection battery, needs exist for explanation, battery in real time
Powered as the power supply of internal-combustion engine vehicle or motor vehicle driven by mixed power for Electron pressurizing unit；Continue above, set when dump energy is less than
After fixed threshold value, such as 30%, the in-car generator of control is powered to Electron pressurizing unit, is also pointed out that herein, in reality
In operation, the electric energy that generator can be lifted by improving the modes such as engine speed or the angle of ignition is exported；In addition, generator pair
The mode of the power supply of Electron pressurizing unit, including be that indirect mode and direct mode, i.e. generator charge to battery, by storing
Battery is powered to Electron pressurizing unit, or directly Electron pressurizing unit is powered by generator.
Corresponding to the above method, present invention also offers a kind of embodiment of engine booster control system, with reference to Fig. 3,
It includes：Controller, and Electron pressurizing unit, outlet pressure of the booster sensor and the gas pedal being connected with the controller
Sensor；In actual applications, the controller can select control unit of engine ECU.
The mode of the work of the system is that controller detects accelerator pedal signal in real time by accelerator pedal sensor, and
When detecting the output signal of gas pedal, controller obtains goal pressure according to accelerator pedal signal, calculating；It is specific and
Speech, ECU detected in real time by accelerator pedal sensor accelerator open degree and or throttle slope, and when driver steps on the throttle pedal
Afterwards, ECU according to accelerator open degree and or throttle slope, inquiry accelerator open degree and or throttle slope it is corresponding with engine torque song
Line, calculates target torque；Further according to the target torque, inquiry moment of torsion and air inflow homologous thread calculate target inlet air amount；
Further according to the target inlet air amount, the characteristic curve of Electron pressurizing unit is inquired about, required goal pressure is finally given.
In addition, aforementioned controllers are additionally operable to detect the actual pressure signal that outlet pressure of the booster sensor is sent, here
It should be noted that controller can detect the actual pressure signal in real time, it can also be obtained after required goal pressure is obtained
The actual pressure signal is taken, for control cost consideration, the latter is preferred；Continue above, aforementioned controllers are believed according to actual pressure
Number with it is above-mentioned table look-up, calculate obtain goal pressure relation, control Electron pressurizing unit rotating speed so that Electron pressurizing unit output
Air pressure is equal to required goal pressure.Specifically, Electron pressurizing unit mainly connects by motor and with the motor
The impeller composition connect, the actual pressure that the Electron pressurizing unit detected is exported is compared ECU with goal pressure, in actual pressure
When power is more than goal pressure, ECU controls the motor reduction of speed, conversely, when actual pressure is less than goal pressure, ECU controls
The motor raising speed, in addition, when actual pressure is equal to goal pressure, ECU can keep the rotating speed of the motor.
In another embodiment of the system, the automatically controlled by-passing valve for being arranged on engine charge end is further comprises, and
The automatically controlled by-passing valve is connected with controller；When ECU is not detected by the output signal of gas pedal, i.e., gas pedal is not trampled
When, the motor of ECU triggering Electron pressurizing units shuts down, also, is turned on to automatically controlled by-passing valve output high level, with
Just supplied by natural inflow mode for engine.
In addition, present invention additionally contemplates that to ensure Electron pressurizing unit normal work, can be set on the binding post of battery
One is put with ECU by the electrical quantity sensor that is connected, or will detect that the device of battery electric quantity is connected to ECU by bus,
So, ECU can detect battery electric quantity in real time, and monitor the demand whether dump energy of battery meets Electron pressurizing unit,
Can be specifically triggering and ECU and electricity after power threshold (such as 30%) of the dump energy less than a setting of battery
The generator of sub- booster or battery connection, is powered to Electron pressurizing unit, certainly, it will be appreciated by those skilled in the art that
Be if that generator is connected with battery, be by generator to battery charge, by battery be Electron pressurizing unit confession
Electricity, is to the direct power supply of Electron pressurizing unit, to ensure electronics by generator if generator is directly connected with Electron pressurizing unit
Booster normal work in vehicle travel process.
It is described in detail construction, feature and the action effect of the present invention according to the embodiment shown in schema above, but more than
Described is only presently preferred embodiments of the present invention, but needs to explain, the technology involved by above-described embodiment and its preferred embodiment
Feature, those skilled in the art can close on the premise of not departing from, not changing the mentality of designing and technique effect of the present invention
Ground combination collocation is managed into a variety of equivalents；Therefore, the present invention is every according to the present invention not to limit practical range shown in drawing
The change made of conception, or the equivalent embodiment of equivalent variations is revised as, still without departing from specification with illustrating covered essence
, all should be within the scope of the present invention when refreshing.
Claims (10)
1. a kind of engine booster control method, it is characterised in that including：
In vehicle operation, accelerator pedal signal is detected in real time；
If detecting the output signal of the gas pedal, inquiry accelerator pedal signal and engine torque homologous thread are obtained
To target torque；
According to the target torque, inquiry moment of torsion and air inflow homologous thread obtain target inlet air amount；
According to the target inlet air amount, Electron pressurizing unit characteristic curve is inquired about, goal pressure is obtained；
Obtain the actual pressure of Electron pressurizing unit outlet；
According to the actual pressure and the relation of the goal pressure, the rotating speed of Electron pressurizing unit is controlled, so that described
Actual pressure is equal to the goal pressure.
2. according to the method described in claim 1, it is characterised in that also include：
If being not detected by the output signal of the gas pedal, trigger the Electron pressurizing unit and be stopped, and open air inlet
By-passing valve.
3. according to the method described in claim 1, it is characterised in that also include：
The dump energy of collection battery, after threshold value of the dump energy less than setting, controls generator to electronics in real time
Booster is powered.
4. the method according to any one of claims 1 to 3, it is characterised in that the accelerator pedal signal includes：Throttle is opened
Degree and or throttle slope.
5. a kind of engine booster control system, it is characterised in that including：Controller, and the electricity being connected with the controller
Sub- booster, outlet pressure of the booster sensor and accelerator pedal sensor；
The controller detects accelerator pedal signal in real time by the accelerator pedal sensor, and is stepped on detecting the throttle
During the output signal of plate, the controller obtains goal pressure according to the accelerator pedal signal, calculating；
The controller is additionally operable to obtain the actual pressure that the outlet pressure of the booster sensor is sent, and according to the reality
Pressure and the relation of the goal pressure, control the Electron pressurizing unit rotating speed, so that the actual pressure is equal to the target
Pressure.
6. system according to claim 5, it is characterised in that also include：
The automatically controlled by-passing valve being connected with the controller；
When the controller is not detected by the output signal of the gas pedal, triggers the Electron pressurizing unit and shut down, and
The automatically controlled by-passing valve is controlled to open.
7. system according to claim 5, it is characterised in that also include：
The electrical quantity sensor being connected with the controller, and the hair being connected respectively with the controller and the Electron pressurizing unit
Motor；
The electrical quantity sensor is used for the dump energy for detecting battery in real time, and the dump energy is sent to the control
Device；
The power threshold that the controller is additionally operable to by the dump energy with setting is compared, and is less than institute in dump energy
State after power threshold, triggering generator is powered to Electron pressurizing unit.
8. the system according to any one of claim 5~7, it is characterised in that the controller is according to the gas pedal
Signal, calculating obtains goal pressure, including：
The controller is according to the accelerator pedal signal detected, and inquiry accelerator pedal signal is corresponding with engine torque bent
Line, calculates target torque；Further according to the target torque, inquiry moment of torsion and air inflow homologous thread calculate target inlet air
Amount；Further according to the target inlet air amount, the characteristic curve of the Electron pressurizing unit is inquired about, calculating obtains the goal pressure.
9. system according to claim 8, it is characterised in that the accelerator pedal signal includes：Accelerator open degree and or oil
Door slope.
10. system according to claim 8, it is characterised in that the controller is control unit of engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298662.5A CN107100717B (en) | 2017-04-28 | 2017-04-28 | Engine booster control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298662.5A CN107100717B (en) | 2017-04-28 | 2017-04-28 | Engine booster control method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100717A true CN107100717A (en) | 2017-08-29 |
| CN107100717B CN107100717B (en) | 2019-06-28 |
Family
ID=59657810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710298662.5A Active CN107100717B (en) | 2017-04-28 | 2017-04-28 | Engine booster control method and system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542302A (en) * | 2022-03-04 | 2022-05-27 | 潍柴动力股份有限公司 | Engine control method and related device |
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| JP2006194206A (en) * | 2005-01-17 | 2006-07-27 | Mazda Motor Corp | Supercharging system for engine |
| JP2007198253A (en) * | 2006-01-26 | 2007-08-09 | Toyota Motor Corp | Device for controlling internal combustion engine provided with electric supercharger |
| CN103608571A (en) * | 2011-06-08 | 2014-02-26 | 丰田自动车株式会社 | Device for controlling internal combustion engine fitted with supercharger |
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| CN114542302A (en) * | 2022-03-04 | 2022-05-27 | 潍柴动力股份有限公司 | Engine control method and related device |
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| CN107100717B (en) | 2019-06-28 |
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