CN102434299A - Method for controlling supercharged engine by using supercharging pressure sensor and intake pressure sensor - Google Patents
Method for controlling supercharged engine by using supercharging pressure sensor and intake pressure sensor Download PDFInfo
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- CN102434299A CN102434299A CN2011104417778A CN201110441777A CN102434299A CN 102434299 A CN102434299 A CN 102434299A CN 2011104417778 A CN2011104417778 A CN 2011104417778A CN 201110441777 A CN201110441777 A CN 201110441777A CN 102434299 A CN102434299 A CN 102434299A
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- pressure
- pressure sensor
- boost
- correction function
- supercharged engine
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000008439 repair process Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000003044 adaptive effect Effects 0.000 claims description 19
- 230000007423 decrease Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Combined Controls Of Internal Combustion Engines (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a method for controlling a supercharged engine by using a supercharged pressure sensor and an intake pressure sensor; the method comprises the following steps: step one, detecting intake pressure and boost pressure; step two, judging the connection between the supercharging pressure signal and the intake pressure signal according to the fact that the intake pressure is equal to the supercharging pressure multiplied by a correction function; step three, if the intake pressure is larger than the supercharging pressure multiplied by the correction function, judging that the connection is wrong; and if the intake pressure is equal to the boost pressure multiplied by the correction function, judging that the connection is correct, and circulating to the detection in the step one. According to the invention, through establishing a function model of the difference value between the supercharging pressure and the inlet pressure and comparing actual signals, the possible wrong installation modes of the supercharging pressure and the inlet pressure can be accurately and quickly identified, corresponding faults are reported, and maintenance personnel are reminded to repair in time.
Description
Technical field
The present invention relates to a kind of method of engine control, be specifically related to a kind of method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor.
Background technique
At present, in supercharged engine, boost-pressure sensor and air inlet pressure sensor are as the control input, and with its low cost, high-effect is present major technique approach.In order to improve the interchangeability of component, reduce cost boost-pressure sensor and air inlet pressure sensor and patch link and often use identical part.But the very big problem of bringing is that there is a strong possibility, and property causes both incorrect links.This moment, both signals were all in normal range (NR), and the OBD method all is normal to the diagnosis of sensor separately.But severely subnormal appears in the control of this moment method, and the motor shake is serious, even can't normal starting.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor, and it can identify the mistake that boost-pressure sensor and air inlet pressure sensor possibly exist quickly and accurately.
In order to solve above technical problem, the invention provides a kind of method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor; May further comprise the steps:
Step 1, detection suction pressure and boost pressure;
Step 2, according to suction pressure=boost pressure * correction function, judge being connected of plenum pressure signal and suction pressure signal;
If step 3 suction pressure＞boost pressure * correction function is then judged connection error;
If suction pressure=boost pressure * correction function is then judged to connect correctly, be circulated to the described detection of step 1.
Beneficial effect of the present invention is: through setting up the functional model of boost pressure and suction pressure difference; Relatively actual signal; Can identify the wrong mounting type that both possibly exist quickly and accurately, quote corresponding fault, remind the maintenance man in time to repair.
Said correction function is the pressure decline model of setting up according to the throttle body aperture.
Can also may further comprise the steps:
Step 4, after judging connection error, get into adaptive model, exchange plenum pressure signal and suction pressure signal.
Step 5, after connecting corrigendum, through after a while, withdraw from adaptive model, repair fault;
After connecting corrigendum, through the circulation of several said step 1 to step 4, withdraw from adaptive model, repair fault.
In the said step 3,, then send alarm signal if judge connection error.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Fig. 1 is the flow chart of the said method of the embodiment of the invention.
Embodiment
The method of the invention is connected with fault-tolerant identification to boost-pressure sensor and air inlet pressure sensor, in time quotes corresponding failure; Method can get into adaptive model, with the exchange of signal, carries out normal engine control; After connecting fault repair, method can identify reparation, withdraws from adaptive model.
As shown in Figure 1, method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor according to the invention; May further comprise the steps:
Step 1, detection suction pressure and boost pressure;
Step 2, according to suction pressure=boost pressure * correction function, judge being connected of plenum pressure signal and suction pressure signal; Said correction function is the pressure decline model of setting up according to the throttle body aperture.
If step 3 suction pressure＞boost pressure * correction function is then judged connection error, and sends alarm signal;
If suction pressure=boost pressure * correction function is then judged to connect correctly, be circulated to the described detection of step 1.
Step 4, after judging connection error, get into adaptive model, exchange plenum pressure signal and suction pressure signal.
Step 5, after connecting corrigendum, can withdraw from adaptive model through after a while or the circulation of several said step 1 to step 4, repair fault.
As shown in Figure 1; Boost-pressure sensor and air inlet pressure sensor that supercharged engine according to the invention uses, since the throttle effect of throttle body, relation below boost pressure and suction pressure satisfy; Suction pressure=boost pressure * correction function; Correction function is the function of throttle opening and engine speed, and the present invention gets functional model through setting up difference, can identify when the connection of front sensor whether correct.If actual pressure does not meet above-mentioned relation, through a few times in second, method is quoted fault, gets into adaptive model.
In adaptive model of the present invention, boost-pressure sensor signal and intake pressure sensor signal are exchanged, can carry out normal engine booster control.
After fault restoration, the present invention can withdraw from adaptive model, and repairs failure memory.
Same comparing with prior art; The present invention is through setting up the functional model of boost pressure and suction pressure difference, and relatively actual signal can identify the wrong mounting type that both possibly exist quickly and accurately; Quote corresponding fault, remind the maintenance man in time to repair.
Before fault restoration, adopt adaptive model of the present invention, can realize the normal supercharging control of motor, do not influence engine performance.
After fault restoration, withdraw from adaptive model of the present invention.
As shown in Figure 1, specifically,, control the opening and closing of this function through the method constant according to suction pressure=boost pressure of the present invention * correction function (MAP figure).
Can be accurately judge being connected of plenum pressure signal and suction pressure signal fast.If satisfy the condition of suction pressure＞boost pressure * correction function, method is quoted the fault of connection error.Wherein, revising MAPFUDSLUDSS is the pressure decline model of setting up according to the throttle body aperture.
After upward fast condition satisfied, method got into adaptive model.
In adaptive model of the present invention, exchange plenum pressure signal and suction pressure signal.
After connecting corrigendum, method withdraws from adaptive model.Through after a while, fault restoration.
This moment method can obtain correct boost pressure and suction pressure signal, carries out engine control.
After connecting corrigendum, method withdraws from adaptive model.
Through after a while or several cycles, fault restoration.
The present invention is not limited to the mode of execution that preceding text are discussed.More than the description of embodiment is intended in order to describe and explain the technological scheme that the present invention relates to.Based on the conspicuous conversion of the present invention enlightenment or substitute and also should be considered to fall into protection scope of the present invention.Above embodiment is used for disclosing best implementation methods of the present invention, so that those of ordinary skill in the art can use numerous embodiments of the present invention and multiple alternative reaches the object of the invention.
Claims (6)
1. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor; It is characterized in that, may further comprise the steps:
Step 1, detection suction pressure and boost pressure;
Step 2, according to suction pressure=boost pressure * correction function, judge being connected of plenum pressure signal and suction pressure signal;
If step 3 suction pressure＞boost pressure * correction function is then judged connection error;
If suction pressure=boost pressure * correction function is then judged to connect correctly, be circulated to the described detection of step 1.
2. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor as claimed in claim 1; It is characterized in that said correction function is the pressure decline model of setting up according to the throttle body aperture.
3. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor as claimed in claim 2; It is characterized in that, also comprise:
Step 4, after judging connection error, get into adaptive model, exchange plenum pressure signal and suction pressure signal.
4. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor as claimed in claim 3; It is characterized in that, also comprise:
Step 5, after connecting corrigendum, through after a while, withdraw from adaptive model, repair fault.
5. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor as claimed in claim 3; It is characterized in that, also comprise:
Step 5, after connecting corrigendum, through the circulation of several said step 1 to step 4, withdraw from adaptive model, repair fault.
6. method of carrying out supercharged engine control with boost-pressure sensor and air inlet pressure sensor as claimed in claim 1; It is characterized in that, in the said step 3,, then send alarm signal if judge connection error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104417778A CN102434299A (en) | 2011-12-26 | 2011-12-26 | Method for controlling supercharged engine by using supercharging pressure sensor and intake pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104417778A CN102434299A (en) | 2011-12-26 | 2011-12-26 | Method for controlling supercharged engine by using supercharging pressure sensor and intake pressure sensor |
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| Publication Number | Publication Date |
|---|---|
| CN102434299A true CN102434299A (en) | 2012-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104417778A Pending CN102434299A (en) | 2011-12-26 | 2011-12-26 | Method for controlling supercharged engine by using supercharging pressure sensor and intake pressure sensor |
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| CN (1) | CN102434299A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533645A (en) * | 2014-12-25 | 2015-04-22 | 潍柴动力股份有限公司 | Closed-loop control method and device for engine intake system |
| CN109555614A (en) * | 2017-09-25 | 2019-04-02 | 罗伯特·博世有限公司 | Method for calibrating force snesor or pressure sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008101498A (en) * | 2006-10-18 | 2008-05-01 | Hitachi Ltd | Exhaust gas recirculation device for internal combustion engine |
| US7457700B2 (en) * | 2005-05-18 | 2008-11-25 | Robert Bosch Gmbh | Method and device for operating an internal combustion engine |
| US20090090106A1 (en) * | 2007-10-04 | 2009-04-09 | Martin Muller | System and method for model based boost control of turbo-charged engines |
| EP2085594A1 (en) * | 2008-01-29 | 2009-08-05 | HONDA MOTOR CO., Ltd. | Control system for internal combustion engine |
| CN102022197A (en) * | 2009-09-22 | 2011-04-20 | 通用汽车环球科技运作公司 | Pressure estimation systems and methods |
-
2011
- 2011-12-26 CN CN2011104417778A patent/CN102434299A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457700B2 (en) * | 2005-05-18 | 2008-11-25 | Robert Bosch Gmbh | Method and device for operating an internal combustion engine |
| JP2008101498A (en) * | 2006-10-18 | 2008-05-01 | Hitachi Ltd | Exhaust gas recirculation device for internal combustion engine |
| US20090090106A1 (en) * | 2007-10-04 | 2009-04-09 | Martin Muller | System and method for model based boost control of turbo-charged engines |
| EP2085594A1 (en) * | 2008-01-29 | 2009-08-05 | HONDA MOTOR CO., Ltd. | Control system for internal combustion engine |
| CN102022197A (en) * | 2009-09-22 | 2011-04-20 | 通用汽车环球科技运作公司 | Pressure estimation systems and methods |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533645A (en) * | 2014-12-25 | 2015-04-22 | 潍柴动力股份有限公司 | Closed-loop control method and device for engine intake system |
| CN104533645B (en) * | 2014-12-25 | 2017-04-19 | 潍柴动力股份有限公司 | Closed-loop control method and device for engine intake system |
| CN109555614A (en) * | 2017-09-25 | 2019-04-02 | 罗伯特·博世有限公司 | Method for calibrating force snesor or pressure sensor |
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Application publication date: 20120502 |