CN106150736A - A kind of closed loop control method of Fuel Injection Quantity for Diesel - Google Patents
A kind of closed loop control method of Fuel Injection Quantity for Diesel Download PDFInfo
- Publication number
- CN106150736A CN106150736A CN201610666131.2A CN201610666131A CN106150736A CN 106150736 A CN106150736 A CN 106150736A CN 201610666131 A CN201610666131 A CN 201610666131A CN 106150736 A CN106150736 A CN 106150736A
- Authority
- CN
- China
- Prior art keywords
- bypass valve
- diesel engine
- diesel
- distributive value
- fuel injection
- 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.)
- Pending
Links
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
- F02D41/30—Controlling fuel injection
- F02D41/3082—Control of electrical fuel pumps
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- 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
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0614—Actual fuel mass or fuel injection amount
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses the closed loop control method of a kind of Fuel Injection Quantity for Diesel.In the method, first determine whether whether diesel engine is in steady statue.If diesel engine is in steady statue, detection distributive value and admission pressure, opening bypass valve according to distributive value and admission pressure, bypass valve controls injection pump.If diesel engine is in dynamically, close bypass valve, record current rotating speed and distributive value, adjust bypass valve unlocking condition.State according to diesel engine controls the opening and closing of bypass valve, it is ensured that fuel economy.The past operating mode of diesel engine can affect the unlatching strategy of bypass valve, contributes to system and reaches self adaptation.
Description
Technical field
The present invention relates to internal combustion engine control oil system, particularly relate to the closed loop control method of a kind of Fuel Injection Quantity for Diesel.
Background technology
For improving efficiency of combustion, there is inventor to propose in injection system and bypass valve is set, such as 200910253866.2
That electric control unit pump for diesel engine.It includes flanged (FLGD) fuel injection pump housing, plunger matching parts, electromagnetic valve and bypass valve, bypass
Valve is assemblied on plunger matching parts and fuel injection pump housing, with the version that plunger matching parts uses split.In addition 201210542099.9
Also disclose Diesel engine fuel injection control method, as the reference of the application.
Summary of the invention
The present invention proposes the closed loop control method of a kind of Fuel Injection Quantity for Diesel, controls bypass valve according to the state of diesel engine
Opening and closing, it is ensured that fuel economy.
The technical scheme is that and be achieved in that:
The closed loop control method of a kind of Fuel Injection Quantity for Diesel, it is characterised in that comprise the following steps,
The first step, after starting, injection pump is to Fuel Injection Mechanism of Diesel Engine；
Second step, it is judged that whether diesel engine is in steady statue, if diesel engine is in steady statue, enters step 3, if
Diesel engine is in dynamically, then enter step 4；
3rd step, detection distributive value and admission pressure, open bypass valve according to distributive value and admission pressure, bypass valve controls oil spout
Pump, is back to step one；
4th, close bypass valve, record current rotating speed and distributive value, adjust bypass valve unlocking condition, be back to step one.
In the closed loop control method of the Fuel Injection Quantity for Diesel of the present invention, control system detects that engine speed fluctuations is big
When 2% or distributive value fluctuate more than 5%, system judges that electromotor enters dynamic operation condition；Control system detects that electromotor turns
Speed fluctuation is less than 2% or distributive value fluctuates when being less than 5%, and system judges that electromotor enters dynamic operation condition.
Implement the closed loop control method of this Fuel Injection Quantity for Diesel of the present invention, have the advantages that according to diesel oil
The state of machine controls the opening and closing of bypass valve, it is ensured that fuel economy.The past operating mode of diesel engine can affect the unlatching plan of bypass valve
Slightly, contribute to system and reach self adaptation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the closed loop control method of this Fuel Injection Quantity for Diesel of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe wholely.
The closed loop control method of the Fuel Injection Quantity for Diesel of the present invention as shown in Figure 1, comprises the following steps:
The first step, after starting, injection pump is to Fuel Injection Mechanism of Diesel Engine.
Second step, control system detect engine speed fluctuations be more than 2% or distributive value fluctuation more than 5% time, system
Judge that electromotor enters dynamic operation condition；Control system detect engine speed fluctuations be less than 2% or distributive value fluctuation less than 5%
Time, system judges that electromotor enters dynamic operation condition.If diesel engine is in steady statue, enter step 3, if at diesel engine
In dynamically, then enter step 4.
3rd step, detection distributive value and admission pressure, open bypass valve according to distributive value and admission pressure, bypass valve controls
Injection pump, is back to step one.
4th, close bypass valve, record current rotating speed and distributive value, adjust bypass valve unlocking condition, be back to step
One.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. the closed loop control method of a Fuel Injection Quantity for Diesel, it is characterised in that comprise the following steps,
The first step, after starting, injection pump is to Fuel Injection Mechanism of Diesel Engine；
Second step, it is judged that whether diesel engine is in steady statue, if diesel engine is in steady statue, enters step 3, if
Diesel engine is in dynamically, then enter step 4；
3rd step, detection distributive value and admission pressure, open bypass valve according to distributive value and admission pressure, bypass valve controls oil spout
Pump, is back to step one；
4th, close bypass valve, record current rotating speed and distributive value, adjust bypass valve unlocking condition, be back to step one.
The closed loop control method of Fuel Injection Quantity for Diesel the most according to claim 1, it is characterised in that control system detects
Engine speed fluctuations is more than 2% or distributive value fluctuates when being more than 5%, and system judges that electromotor enters dynamic operation condition；Control system
System detect engine speed fluctuations be less than 2% or distributive value fluctuation less than 5% time, system judge electromotor entrance dynamic work
Condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666131.2A CN106150736A (en) | 2016-08-15 | 2016-08-15 | A kind of closed loop control method of Fuel Injection Quantity for Diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610666131.2A CN106150736A (en) | 2016-08-15 | 2016-08-15 | A kind of closed loop control method of Fuel Injection Quantity for Diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150736A true CN106150736A (en) | 2016-11-23 |
Family
ID=57330057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610666131.2A Pending CN106150736A (en) | 2016-08-15 | 2016-08-15 | A kind of closed loop control method of Fuel Injection Quantity for Diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150736A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223160A (en) * | 2016-12-15 | 2018-06-29 | 通用汽车环球科技运作有限责任公司 | For determining the method for the fuel consumption of internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566068A (en) * | 1981-11-26 | 1986-01-21 | Diesel Kiki Co., Ltd. | Characteristic signal generator for an electronically controlled fuel injection pump |
| JPH05296094A (en) * | 1992-04-15 | 1993-11-09 | Toyota Motor Corp | Fuel injection amount control device for multicylinder diesel engine |
| CN2703882Y (en) * | 2004-04-29 | 2005-06-08 | 清华大学 | Electric controlled in-line pump-valve-pipe-nozzle diesel injection device |
| CN103758650A (en) * | 2013-12-04 | 2014-04-30 | 三一重机有限公司 | Fuel oil control method and fuel oil control device, and engineering plant |
| CN104832307A (en) * | 2015-04-09 | 2015-08-12 | 哈尔滨工程大学 | Diesel engine rotating speed control method |
| CN105464863A (en) * | 2015-12-09 | 2016-04-06 | 中国船舶重工集团公司第七一一研究所 | Electronic unit pump system and oil spray control method |
-
2016
- 2016-08-15 CN CN201610666131.2A patent/CN106150736A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4566068A (en) * | 1981-11-26 | 1986-01-21 | Diesel Kiki Co., Ltd. | Characteristic signal generator for an electronically controlled fuel injection pump |
| JPH05296094A (en) * | 1992-04-15 | 1993-11-09 | Toyota Motor Corp | Fuel injection amount control device for multicylinder diesel engine |
| CN2703882Y (en) * | 2004-04-29 | 2005-06-08 | 清华大学 | Electric controlled in-line pump-valve-pipe-nozzle diesel injection device |
| CN103758650A (en) * | 2013-12-04 | 2014-04-30 | 三一重机有限公司 | Fuel oil control method and fuel oil control device, and engineering plant |
| CN104832307A (en) * | 2015-04-09 | 2015-08-12 | 哈尔滨工程大学 | Diesel engine rotating speed control method |
| CN105464863A (en) * | 2015-12-09 | 2016-04-06 | 中国船舶重工集团公司第七一一研究所 | Electronic unit pump system and oil spray control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223160A (en) * | 2016-12-15 | 2018-06-29 | 通用汽车环球科技运作有限责任公司 | For determining the method for the fuel consumption of internal combustion engine |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |