CN110318897B - Electronic control engine control method based on smoke intensity limitation - Google Patents
Electronic control engine control method based on smoke intensity limitation Download PDFInfo
- Publication number
- CN110318897B CN110318897B CN201910569361.0A CN201910569361A CN110318897B CN 110318897 B CN110318897 B CN 110318897B CN 201910569361 A CN201910569361 A CN 201910569361A CN 110318897 B CN110318897 B CN 110318897B
- Authority
- CN
- China
- Prior art keywords
- smoke limit
- engine
- control valve
- smoke
- limit correction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
-
- 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
- F02D23/02—Controlling engines characterised by their being supercharged the engines being of fuel-injection type
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention discloses an electronic control engine control method based on smoke intensity limitation, which comprises the following steps: calibrating a smoke limit correction MAP graph in advance, wherein the smoke limit correction MAP graph comprises a plurality of smoke limit correction coefficients capable of triggering smoke limit oil quantity conditions; pre-calibrating a control valve opening table based on the smoke limit correction coefficient; when the acceleration of the vehicle is greater than a first preset acceleration value, the acceleration of an electronic accelerator pedal is greater than a second preset acceleration value, the running load of the engine is greater than a preset load value, and the smoke limit calculation coefficient obtained through calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; the electric control unit controls the control valve to open according to the corresponding opening degree; and after the preset time T is started, the electric control unit controls the control valve to be closed. The invention can ensure the dynamic response speed of the engine when the vehicle is accelerated or loaded suddenly.
Description
Technical Field
The invention belongs to the technical field of electronic control engines, and particularly relates to an electronic control engine control method and system based on smoke intensity limitation.
Background
In order to meet the emission requirement and prevent black smoke, the conventional electronic control engine generally needs to limit the air-fuel ratio coefficient of air and fuel oil; but this also limits the engine dynamic response speed during rapid acceleration or rapid loading of the vehicle; drivers often complain of insufficient engine power.
An electronic control engine (an engine for realizing accurate control of engine fuel based on an electronic control unit) usually adopts a method for calculating a ratio of engine cycle air inflow and engine cycle oil supply, and controls proper oil injection quantity according to the current engine cycle air inflow so as to further avoid the engine from emitting black smoke.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an electronic control engine control method based on smoke intensity limitation to ensure the dynamic response speed of an engine during sudden acceleration or sudden load.
In order to solve the above technical problem, an embodiment of the present invention provides an electronic control engine control method based on smoke limit, including the following steps:
a control valve is arranged on an air inlet and outlet by-pass pipeline between the outlet of a supercharger compressor of the electric control engine and the inlet of a turbine, and the control valve is electrically connected with an electric control unit of the electric control engine; the control method is characterized by comprising the following steps:
calibrating a smoke limit correction MAP graph in advance, wherein the smoke limit correction MAP graph comprises a plurality of smoke limit correction coefficients which can trigger smoke limit oil quantity conditions; pre-calibrating a control valve opening table based on the smoke limit correction coefficient;
when the acceleration of the vehicle is greater than a first preset acceleration value, the acceleration of an electronic accelerator pedal is greater than a second preset acceleration value, the running load of the engine is greater than a preset load value, and the smoke limit calculation coefficient obtained through calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; the electric control unit searches the control valve opening degree table according to the current smoke degree limit correction coefficient and controls the control valve to act according to the searched control valve opening degree;
after the control valve is opened for a preset time T according to the opening degree of the control valve, the electric control unit controls the control valve to be closed;
the calibration step of the smoke limit correction MAP comprises the following steps:
calibrating a smoke limit MAP graph based on the engine speed and the engine cycle intake mass, checking a region in which sudden change of the engine operation load is often limited by the engine cycle intake mass under the common engine speed, and only correcting and amplifying smoke limit coefficients in the region to the smoke limit correction coefficients;
and correcting to form the smoke limit corrected MAP on the basis of the smoke limit MAP.
Preferably, the smoke limit correction coefficient is equal to the smoke limit coefficient a plus the correction parameter a;
wherein the smoke limit coefficient A is larger than or equal to 1, and a is equal to 0.2-0.6.
Preferably, the smoke limit calculation coefficient is equal to the current engine cycle intake air mass divided by the current engine cycle fuel supply divided by 14.5.
Preferably, the step of calibrating the control valve opening degree table in advance based on the smoke limit correction coefficient includes:
and dividing the smoke limit correction coefficients into multi-level smoke limit intervals, and calibrating the control valve opening table based on the smoke limit intervals of different levels.
Preferably, the control valve is an electric butterfly valve or a proportional valve.
After the technical scheme is adopted, the invention has the beneficial effects that:
the invention relates to an electric control engine control method based on smoke intensity limitation; firstly, a control valve is arranged on an air inlet and outlet by-pass pipeline between a supercharger compressor outlet and a turbine inlet of an electric control engine, and the control valve is electrically connected with an electric control unit of the electric control engine. Calibrating a smoke limit correction MAP graph in advance, wherein the smoke limit correction MAP graph comprises a plurality of smoke limit correction coefficients capable of triggering smoke limit oil quantity conditions; pre-calibrating a control valve opening table based on the smoke limit correction coefficient; when the acceleration of the vehicle is greater than a first preset acceleration value, the acceleration of an electronic accelerator pedal is greater than a second preset acceleration value, the running load of the engine is greater than a preset load value, and the smoke limit calculation coefficient obtained through calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; the electric control unit searches a control valve opening table according to the current smoke opening limit correction coefficient and controls the control valve to act according to the searched control valve opening; after the control valve is opened for a preset time T according to the opening degree of the control valve, the electric control unit controls the control valve to be closed.
When the engine is under high power, the gas pressure from the gas compressor is higher; after the control valve is opened, part of gas from the gas compressor enters the gas inlet of the turbine through the gas inlet and outlet bypass pipeline, the back pressure of the turbine is increased, the rotating speed of the supercharger is increased, the gas inflow is increased, and the proper oil injection amount is controlled according to the current gas inflow so as to ensure the dynamic response speed of the engine when the vehicle is accelerated or loaded suddenly.
Drawings
FIG. 1 is a schematic view of the installation position of a control valve according to the present invention;
FIG. 2 is a schematic block diagram of a control method for an electronically controlled engine based on smoke limit in accordance with the present invention
FIG. 3 is a flow chart of an electronically controlled engine control method of the present invention based on smoke limit;
in the figure, 1 is a compressor, 2 is a turbine, 3 is an air inlet and exhaust bypass pipeline, 4 is a control valve, 5 is an electronic control engine, and 6 is an electronic control unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for convenience in explanation and are not to be construed as limiting the invention.
As shown in fig. 1 and fig. 2, in an electronic control engine control method based on smoke intensity limitation, an air inlet and exhaust bypass pipeline 3 between an outlet of a supercharger compressor 1 and an inlet of a turbine 2 of an electronic control engine 5 (an engine which uses an electronic control unit 6 to realize accurate control of engine fuel) is provided with a control valve 4, and the control valve 4 is electrically connected with the electronic control unit 6 of the electronic control engine 5; the control valve 4 can be an electric butterfly valve or a proportional valve, is controlled by the electric control unit 6 and is provided with position feedback information.
The control method comprises the following steps:
s1, pre-calibrating a smoke limit correction MAP, wherein the smoke limit correction MAP comprises a plurality of smoke limit correction coefficients which can trigger the smoke limit oil mass condition; the control valve opening degree table is calibrated in advance based on these smoke limit correction coefficients.
S2, when the acceleration of the vehicle is larger than a first preset acceleration value, the acceleration of an electronic accelerator pedal is larger than a second preset acceleration value, the running load of the engine is larger than a preset load value, and the smoke limit calculation coefficient obtained through calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; the electric control unit 6 searches the control valve opening degree table according to the smoke degree limiting coefficient calibrated under the current working condition, and controls the control valve 4 to act according to the searched control valve opening degree.
And the smoke limit calculation coefficient is equal to the engine circulating air inlet mass under the current working condition divided by the current engine circulating oil supply quantity divided by 14.5.
The first preset acceleration value is more than or equal to 5m/s2The value of (d); the second preset acceleration value is a value greater than or equal to 80%/s (eighty percent opening per second); the preset load value is a value equal to or greater than 50% of the rated load.
And S3, after the control valve 4 is opened for the preset time T according to the opening degree of the control valve, the electric control unit 6 controls the control valve 4 to be closed.
The calibration step of the smoke limit correction MAP concretely comprises the following steps:
calibrating a smoke limit MAP graph based on the engine speed and the engine circulating intake mass, checking a region in which sudden change of the engine running load is often limited by the engine circulating intake mass under the common engine speed, and only correcting and amplifying a smoke limit coefficient A in the region to a smoke limit correction coefficient;
that is, the smoke limit corrected MAP is formed by correcting the smoke limit MAP.
In this embodiment, the smoke limit correction coefficient is equal to the smoke limit coefficient a plus the correction parameter a; wherein a is 0.2-0.6. The smoke limit coefficient A is greater than or equal to 1.
The step of pre-calibrating the control valve opening table based on the smoke limit correction coefficient specifically comprises the following steps:
and dividing the plurality of smoke limit correction coefficients into multi-level smoke limit intervals, and calibrating the opening degree table of the control valve based on the smoke limit intervals of different levels. Namely, one smoke limit interval corresponds to one control valve opening.
As shown in fig. 3, the above step S2 is explained in detail;
s21, firstly, the electronic control unit 6 judges whether the engine is in a running state or not based on the signal parameters transmitted by the engine speed sensor; if not, controlling the control valve 4 to close; if yes, the process continues to step S22.
S22, the electronic control unit 6 judges whether the vehicle acceleration is larger than a first preset acceleration value or not based on the signal parameter transmitted by the vehicle acceleration sensor; if not, controlling the control valve 4 to close; if yes, the process continues to step S23.
S23, the electronic control unit 6 judges whether the engine running load is larger than a preset load value or not based on signals transmitted by various sensors; if not, controlling the control valve 4 to close; if yes, the process continues to step S24.
The various sensors may be a rotation speed sensor, a torque sensor, etc., and the measurement and calculation of the operation load are well known to those skilled in the art and will not be described herein.
S24, calculating to obtain the acceleration of the electronic accelerator pedal by the electronic control unit 6 based on the signal transmitted by the electronic accelerator pedal position sensor; if the obtained acceleration of the electronic accelerator pedal is larger than a second preset acceleration value, continuing to execute the step S25; otherwise, the control valve 4 is controlled to close.
S25, the electronic control unit 6 judges whether the smoke limit oil mass condition is triggered at the moment, namely whether the smoke limit calculation coefficient obtained by calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; if yes, go to step S26; if not, the control valve 4 is controlled to be closed.
S26, the electronic control unit 6 searches a control valve opening table according to the smoke limit coefficient calibrated under the current working condition, and controls the control valve 4 to act according to the searched control valve opening; execution continues with step S3.
The parameters of the smoke intensity limit MAP, the smoke intensity limit correction MAP and the control valve opening table are obtained through bench tests (on the premise that the engine performance is stable, and a supercharger does not overspeed or surge), the bench tests are conventional means for obtaining the parameters and calling data by a person skilled in the art, a database which is directly called can be obtained according to the description, and the process of the bench tests is not described herein.
For a clear understanding of the concept of the present invention, this embodiment also provides a partial data summary table of the smoke limit MAP for lookup obtained based on bench test, as shown in table one. The specific values in the table are only a portion of the test data, which is exemplary only, and not only are those values applicable, which may be calibrated by bench testing based on the model and performance requirements of the engine.
Watch 1
When the engine is under high power, the gas pressure from the gas compressor 1 is higher; after the control valve 4 is opened, part of gas from the gas compressor 1 enters the gas inlet of the turbine 2 through the gas inlet and outlet bypass pipeline 3, the back pressure of the turbine 2 is increased, the rotating speed of the supercharger is increased, the gas inflow is increased, the proper oil injection amount is controlled according to the current gas inflow, the problem of engine power limitation caused by the fact that the supercharger is in short time of transient response is actually solved, and the dynamic response speed of the engine when a vehicle is accelerated or loaded suddenly is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the design principle of the present invention, and these should also be considered as falling within the protection scope of the present invention.
Claims (5)
1. A smoke intensity limitation-based electronic control engine control method is characterized in that a control valve is arranged on an air inlet and outlet bypass pipeline between a supercharger compressor outlet and a turbine inlet of an electronic control engine, and the control valve is electrically connected with an electronic control unit of the electronic control engine; the control method is characterized by comprising the following steps:
calibrating a smoke limit correction MAP graph in advance, wherein the smoke limit correction MAP graph comprises a plurality of smoke limit correction coefficients which can trigger smoke limit oil quantity conditions; pre-calibrating a control valve opening table based on the smoke limit correction coefficient;
when the acceleration of the vehicle is greater than a first preset acceleration value, the acceleration of an electronic accelerator pedal is greater than a second preset acceleration value, the running load of the engine is greater than a preset load value, and the smoke limit calculation coefficient obtained through calculation under the current working condition is equal to the smoke limit correction coefficient calibrated under the working condition; the electric control unit searches the control valve opening degree table according to the current smoke degree limit correction coefficient and controls the control valve to act according to the searched control valve opening degree;
after the control valve is opened for a preset time T according to the opening degree of the control valve, the electric control unit controls the control valve to be closed;
the calibration step of the smoke limit correction MAP comprises the following steps:
calibrating a smoke limit MAP graph based on the engine speed and the engine cycle intake mass, checking a region in which sudden change of the engine operation load is often limited by the engine cycle intake mass under the common engine speed, and only correcting and amplifying smoke limit coefficients in the region to the smoke limit correction coefficients;
and correcting to form the smoke limit corrected MAP on the basis of the smoke limit MAP.
2. An electrically controlled engine control method based on smoke limit according to claim 1, characterized in that said smoke limit correction factor is equal to a smoke limit factor a plus a correction parameter a;
wherein the smoke limit coefficient A is larger than or equal to 1, and a is equal to 0.2-0.6.
3. An electronically controlled engine control method based on smoke limit as set forth in claim 1 wherein said smoke limit calculation factor is equal to the current engine cycle intake mass divided by the current engine cycle fuel supply divided by 14.5.
4. An electrically controlled engine control method based on smoke limit as set forth in claim 1, wherein the step of pre-calibrating a control valve opening degree table based on the smoke limit correction coefficient comprises:
and dividing the smoke limit correction coefficients into multi-level smoke limit intervals, and calibrating the control valve opening table based on the smoke limit intervals of different levels.
5. An electronically controlled engine control method based on smoke limit as defined in claim 1 wherein said control valve is an electrically operated butterfly valve or a proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569361.0A CN110318897B (en) | 2019-06-27 | 2019-06-27 | Electronic control engine control method based on smoke intensity limitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569361.0A CN110318897B (en) | 2019-06-27 | 2019-06-27 | Electronic control engine control method based on smoke intensity limitation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110318897A CN110318897A (en) | 2019-10-11 |
| CN110318897B true CN110318897B (en) | 2022-04-15 |
Family
ID=68120482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569361.0A Active CN110318897B (en) | 2019-06-27 | 2019-06-27 | Electronic control engine control method based on smoke intensity limitation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110318897B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412623A (en) * | 2020-10-28 | 2022-04-29 | 上海汽车集团股份有限公司 | Vehicle exhaust emission control method and device |
| CN113511207B (en) * | 2021-05-27 | 2024-07-19 | 潍柴动力股份有限公司 | Transient control method of whole vehicle engine and vehicle |
| CN114033569B (en) * | 2021-10-09 | 2023-06-06 | 东风越野车有限公司 | Smoke intensity control system and control method for special diesel engine |
| CN118375524B (en) * | 2024-06-26 | 2024-09-17 | 潍柴动力股份有限公司 | Engine smoke intensity control method and device, storage medium and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913331A (en) * | 2012-10-29 | 2013-02-06 | 潍柴动力股份有限公司 | Engine system as well as running state optimal control method and device thereof |
| CN203702348U (en) * | 2014-02-24 | 2014-07-09 | 吉林大学 | EGR control system for internal combustion engine instantaneous conditions |
| CN109162817A (en) * | 2018-10-31 | 2019-01-08 | 潍柴动力股份有限公司 | A kind of controlling method for diesel engine and device |
| CN109812342A (en) * | 2019-04-10 | 2019-05-28 | 广西玉柴机器股份有限公司 | Promote engine test bench characteristic curve and tractor that tractor overcomes load capacity |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2050943B1 (en) * | 2006-08-10 | 2011-11-23 | Toyota Jidosha Kabushiki Kaisha | Control device for internal combustion engine with supercharger |
| JP5531849B2 (en) * | 2010-08-06 | 2014-06-25 | 株式会社デンソー | Sensor control device |
| JP2012097604A (en) * | 2010-10-29 | 2012-05-24 | Isuzu Motors Ltd | Method and device for controlling exhaust brake of internal combustion engine |
| DE102011006363A1 (en) * | 2011-03-29 | 2012-10-04 | Robert Bosch Gmbh | Method for operating an internal combustion engine |
| JP6024211B2 (en) * | 2012-05-30 | 2016-11-09 | いすゞ自動車株式会社 | Internal combustion engine and control method thereof |
| DE102012215804A1 (en) * | 2012-09-06 | 2014-03-06 | Robert Bosch Gmbh | Method for determining defect of internal combustion engine of motor vehicle, involves carrying out particle concentration measurement, which follows active change of function or operating state of internal combustion engine |
| JP5997061B2 (en) * | 2013-01-16 | 2016-09-21 | 株式会社デンソー | Fuel injection control device |
| CN103758646B (en) * | 2014-02-24 | 2016-03-02 | 吉林大学 | The EGR control system of internal combustion engine transient operating mode |
| CN103790721A (en) * | 2014-02-24 | 2014-05-14 | 吉林大学 | EGR control system and method for instantaneous conditions of internal combustion engine |
| CN103883411B (en) * | 2014-03-14 | 2016-08-24 | 潍柴动力股份有限公司 | A kind of electric-control motor external characteristics control method and device |
| CN104454211B (en) * | 2014-10-30 | 2017-02-01 | 长城汽车股份有限公司 | Automobile power performance control method and system |
| CN104775881B (en) * | 2015-04-08 | 2017-05-31 | 广西玉柴机器股份有限公司 | The control method of engine SCR catalyst system |
| CN204532559U (en) * | 2015-04-13 | 2015-08-05 | 吉林大学 | Reduce the control system of diesel transient operating mode smoke intensity |
| CN108088680B (en) * | 2016-11-22 | 2020-09-01 | 上海汽车集团股份有限公司 | Engine bench calibration test system |
| CN109915293B (en) * | 2019-03-26 | 2020-03-27 | 潍柴重机股份有限公司 | Power-up time control method and control system for electric control unit pump |
-
2019
- 2019-06-27 CN CN201910569361.0A patent/CN110318897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913331A (en) * | 2012-10-29 | 2013-02-06 | 潍柴动力股份有限公司 | Engine system as well as running state optimal control method and device thereof |
| CN203702348U (en) * | 2014-02-24 | 2014-07-09 | 吉林大学 | EGR control system for internal combustion engine instantaneous conditions |
| CN109162817A (en) * | 2018-10-31 | 2019-01-08 | 潍柴动力股份有限公司 | A kind of controlling method for diesel engine and device |
| CN109812342A (en) * | 2019-04-10 | 2019-05-28 | 广西玉柴机器股份有限公司 | Promote engine test bench characteristic curve and tractor that tractor overcomes load capacity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110318897A (en) | 2019-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110318897B (en) | Electronic control engine control method based on smoke intensity limitation | |
| JP5680169B1 (en) | Control device and control method for internal combustion engine | |
| KR930006052B1 (en) | Device for controlling engine and method thereof | |
| US9322357B2 (en) | Soot accumulation model for setpoint modification | |
| US7905135B2 (en) | Throttle upstream pressure estimating apparatus and cylinder charged air quantity calculating apparatus for internal combustion engine | |
| US20050139193A1 (en) | Control device for internal combustion engine | |
| CN100538057C (en) | Learning-oriented exhaust gas recirculation valve position control | |
| JPH0634491A (en) | Lean limit detecting method utilizing ion current | |
| JP2005220888A (en) | Supercharging pressure presuming device of internal combustion engine with supercharger | |
| US10208692B2 (en) | Misfire detecting system for engine | |
| WO2019094318A1 (en) | Measurement, modeling, and estimation of scavenging airflow in an internal combustion engine | |
| CN108317015B (en) | Natural gas engine transient compensation control system and control method | |
| US20130197785A1 (en) | Nox control | |
| US20130192569A1 (en) | Oxygen concentration setpoint modification | |
| US6314733B1 (en) | Control method | |
| JP2001073789A (en) | Supercharging pressure control system for internal combustion engine | |
| CN114060160B (en) | Control method and control system for maximum fuel regulation capability of engine | |
| JP2020094532A (en) | Control device of internal combustion engine | |
| US9328691B2 (en) | Setpoint bank control architecture | |
| US10132318B2 (en) | Turbocharger control | |
| JPH09317568A (en) | Abnormality detecting device for diesel engine | |
| JP6559002B2 (en) | Lambda sensor failure diagnosis method and vehicle motion control device | |
| CN113803174B (en) | Engine control method and device | |
| CN115234362B (en) | Engine safety control method and device, vehicle and storage medium | |
| JP3129082B2 (en) | Air-fuel ratio control device for engine with EGR device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230404 Address after: 261108 Fuhai Street, Binhai Economic and Technological Development Zone, Weifang City, Shandong Province Patentee after: WEICHAI HEAVY MACHINERY Co.,Ltd. Patentee after: Weichai Pengpai Industrial Technology (Weifang) Co.,Ltd. Address before: 261108 Fuhai Street, Binhai Economic and Technological Development Zone, Weifang City, Shandong Province Patentee before: WEICHAI HEAVY MACHINERY Co.,Ltd. |