CN112983668A - Heavy load monitoring method for marine engine - Google Patents
Heavy load monitoring method for marine engine Download PDFInfo
- Publication number
- CN112983668A CN112983668A CN202110216648.2A CN202110216648A CN112983668A CN 112983668 A CN112983668 A CN 112983668A CN 202110216648 A CN202110216648 A CN 202110216648A CN 112983668 A CN112983668 A CN 112983668A
- Authority
- CN
- China
- Prior art keywords
- engine
- heavy load
- torque
- rotating speed
- control unit
- 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
Images
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
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B49/00—Arrangements of nautical instruments or navigational aids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- 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
- F02D2200/1002—Output torque
-
- 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)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Ocean & Marine Engineering (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a heavy load monitoring method for a marine engine, which belongs to the technical field of marine engines.A control unit detects the rotating speed of the engine through a rotating speed sensor, detects the torque of the engine through a torque sensor or detects the intake pressure after cold in the engine through a pressure sensor, when the torque or the intake pressure reaches an alarm value at the current rotating speed, the engine is in a heavy load state, and the control unit outputs an alarm signal to an instrument and starts timing; when the duration time of the heavy load state exceeds the set time, the control unit outputs an alarm signal to the instrument, the instrument gives an audible and visual alarm, and when the duration time of the heavy load state does not exceed the set time, the instrument gives an alarm by a red light; the alarm value is smaller than the maximum torque or the maximum air inlet pressure at the current rotating speed, the maximum torque or the maximum air inlet pressure at each rotating speed is calibrated by the engine on the bench in advance, and the method can visually judge whether the engine is overloaded or not, avoid increasing the service cost due to misjudgment and protect the engine.
Description
Technical Field
The invention belongs to the technical field of marine engines, and particularly relates to a method for monitoring heavy load of a marine engine.
Background
In actual matching of the marine engine, heavy load working conditions (such as heavy load of a ship, countercurrent, improper matching of a propeller, winding of the propeller by foreign matters and the like) often exist, and when the heavy load working conditions exceed the external characteristics of the engine, abnormal conditions such as reduction of the rotating speed of the engine, touring, surging, flameout and the like can occur. At the moment, a client lacks visual judgment basis, often mistakenly thinks that the engine breaks down, and requires field service of a manufacturer to solve the problem, and manufacturer service personnel usually judge whether the engine breaks down in a mode of measuring shaft work, so that manpower and material resources are wasted, and the use experience of the client is also influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the ship engine heavy load monitoring method can visually judge whether the engine is heavy load or not, avoids increasing service cost due to misjudgment, can remind in advance, and effectively protects the engine.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a ship engine heavy load monitoring method, the control unit detects the rotational speed of the engine through the rotational speed sensor, the said control unit also detects the torque of the said engine through the torque sensor or detects the intake pressure after the cold in the said engine through the pressure sensor, when the said torque or the said intake pressure reaches the alarm value under the said rotational speed at present, the said engine is in the heavy load state, the said control unit outputs the alarm signal to the instrument and starts timing; when the duration time of the heavy-load state exceeds the set time, the control unit outputs an alarm signal to the instrument, the instrument gives an audible and visual alarm, and when the duration time of the heavy-load state does not exceed the set time, the instrument gives an alarm by a red light; the alarm value is smaller than the maximum torque or the maximum air inlet pressure at the current rotating speed, and the maximum torque or the maximum air inlet pressure at each rotating speed is calibrated by the engine on a bench in advance.
Further, when the torque or the intake pressure reaches the current early warning value at the rotating speed and does not reach the alarm value, the engine is in a heavy-load early warning state, the control unit outputs an early warning signal to the instrument, and the instrument yellow light gives an early warning.
Further, when the torque or the intake pressure does not reach the early warning value at the current rotating speed, the engine operates normally.
Further, the alarm value at each of the rotational speeds is a decrease of 5% in the maximum torque or the maximum intake pressure at the current rotational speed.
Further, the early warning value at each of the rotation speeds is that the maximum torque or the maximum intake pressure at the current rotation speed is decreased by 10%.
Further, the set time is 1-2 h.
Furthermore, signals are transmitted between the control unit and the instrument through CAN communication.
Further, when the duration time of the heavy load state exceeds the set time, the control unit controls the actuator to limit the engine torque and reduce the rotating speed.
After the technical scheme is adopted, the invention has the beneficial effects that:
according to the method for monitoring the heavy load of the marine engine, the control unit detects the rotating speed of the engine through the rotating speed sensor, the control unit also detects the torque of the engine through the torque sensor or detects the intake pressure after cold in the engine through the pressure sensor, when the torque or the intake pressure reaches the alarm value at the current rotating speed, the engine is in a heavy load state, and the control unit outputs the alarm signal to the instrument and starts timing; when the duration time of the heavy load state exceeds the set time, the control unit outputs an alarm signal to the instrument, the instrument gives an audible and visual alarm, and when the duration time of the heavy load state does not exceed the set time, the instrument gives an alarm by a red light; the alarm value is smaller than the maximum torque or the maximum air inlet pressure at the current rotating speed, the maximum torque or the maximum air inlet pressure at each rotating speed is calibrated by the engine on the rack in advance, and because the torque and the air inlet pressure of the engine are in positive correlation with the load, whether the engine is overloaded or not can be visually judged by calibrating and monitoring the maximum torque and the maximum air inlet pressure at each rotating speed, the increase of service cost caused by misjudgment is avoided, meanwhile, through the setting of the alarm value, sufficient lead can be provided, reminding is given, and the engine can be effectively protected through alarm response.
Drawings
FIG. 1 is a control logic diagram of the marine engine heavy load monitoring method of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
All directions referred to in the present specification are based on the drawings, and represent relative positional relationships only, and do not represent absolute positional relationships.
As shown in figure 1, the heavy load monitoring method for the marine engine is characterized in that a control unit detects the rotating speed of the engine through a rotating speed sensor, the control unit also detects the torque of the engine through a torque sensor or the intake pressure after the engine is cooled through a pressure sensor, the engine firstly marks an external characteristic curve (the maximum torque curve which CAN be reached by the engine at each rotating speed) on a rack or records the maximum intake pressure at the next rotating speed, a certain descending interval is taken according to the maximum torque or the maximum intake pressure, an alarm value and an early warning value are determined, corresponding data are filled in a table, a light alarm is set according to the value in the table, after the corresponding value is reached, the control unit outputs a signal to the instrument through CAN communication, the instrument makes a corresponding response, if the early warning value is reached, a yellow light is lightened, and if the alarm value is reached, a red light.
As shown in fig. 1, the specific responses are as follows: and when the torque or the intake pressure does not reach the early warning value at the current rotating speed, the engine normally operates. When the torque or the intake pressure reaches the early warning value at the current rotating speed and does not reach the early warning value, the engine is in a heavy-load early warning state, the control unit outputs an early warning signal to the instrument, the instrument is early warned by a yellow lamp, and the early warning value is smaller than the early warning value.
As shown in fig. 1, when the torque or the intake pressure reaches an alarm value at the current rotating speed, the engine is in a heavy-load state, and the control unit outputs an alarm signal to the instrument and starts timing; when the duration time of the heavy-load state exceeds the set time, the control unit outputs an alarm signal to the instrument, the instrument gives an audible and visual alarm, and when the duration time of the heavy-load state does not exceed the set time, the instrument gives an alarm by a red light. And the alarm value is smaller than the maximum torque or the maximum air inlet pressure at the current rotating speed, and the maximum torque or the maximum air inlet pressure at each rotating speed is calibrated by the engine on the bench in advance.
In this embodiment, preferably, the warning value at each rotation speed is 5% of the maximum torque or the maximum intake pressure drop at the current rotation speed, and the warning value at each rotation speed is 10% of the maximum torque or the maximum intake pressure drop at the current rotation speed. The setting time is 1 h-2 h.
As shown in fig. 1, when the duration of the heavy load state exceeds the set time, the control unit starts a fault response to control the actuator to limit the torque of the engine and reduce the rotation speed in order to avoid the reduction of the service life of the engine.
The heavy load monitoring method of the marine engine can visually judge whether the engine is heavy load or not by calibrating the maximum torque or the maximum intake pressure at each rotating speed in advance, setting an early warning value and an alarm value when the maximum torque or the maximum intake pressure drops for a certain interval, monitoring the output torque of the engine or the intake pressure after intercooling in real time and comparing the output torque of the engine or the intake pressure with the early warning value and the alarm value at the current rotating speed, thereby avoiding increasing the service cost due to misjudgment and effectively protecting the engine.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the described embodiments are only some, and not all, of the present invention, which is presented by way of example only, and the scope of the invention is defined by the appended claims. Various changes or modifications to these embodiments may be made by those skilled in the art without departing from the principle and spirit of the invention, and these changes and modifications all fall within the scope of the invention.
Claims (8)
1. A ship engine heavy load monitoring method is characterized in that a control unit detects the rotating speed of an engine through a rotating speed sensor, the control unit also detects the torque of the engine through a torque sensor or detects the intake pressure after the engine is cooled through a pressure sensor, when the torque or the intake pressure reaches the alarm value under the current rotating speed, the engine is in a heavy load state, and the control unit outputs an alarm signal to an instrument and starts timing;
when the duration time of the heavy-load state exceeds the set time, the control unit outputs an alarm signal to the instrument, the instrument gives an audible and visual alarm, and when the duration time of the heavy-load state does not exceed the set time, the instrument gives an alarm by a red light;
the alarm value is smaller than the maximum torque or the maximum air inlet pressure at the current rotating speed, and the maximum torque or the maximum air inlet pressure at each rotating speed is calibrated by the engine on a bench in advance.
2. The method for monitoring the heavy load of the marine engine according to claim 1, wherein when the torque or the intake pressure reaches the pre-warning value at the current rotating speed and does not reach the pre-warning value, the engine is in a heavy load pre-warning state, the control unit outputs a pre-warning signal to the instrument, and the instrument yellow light performs pre-warning.
3. The marine engine heavy load monitoring method according to claim 2, wherein the engine is normally operated when the torque or the intake pressure does not reach the warning value at the current rotational speed.
4. The marine engine heavy load monitoring method according to claim 3, wherein the warning value at each of the rotational speeds is a 5% drop in the maximum torque or the maximum intake pressure at the current rotational speed.
5. The marine engine heavy load monitoring method according to claim 4, wherein the early warning value at each of the rotational speeds is 10% reduction in the maximum torque or the maximum intake pressure at the current rotational speed.
6. The marine engine heavy load monitoring method according to claim 1, wherein the set time is 1-2 hours.
7. The marine engine heavy load monitoring method of claim 1, wherein the control unit and the meter transmit signals via CAN communication.
8. The marine engine heavy load monitoring method according to any one of claims 1 to 7, wherein the control unit controls the actuator to limit the engine torque and reduce the rotational speed when the heavy load state duration exceeds the set time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216648.2A CN112983668A (en) | 2021-02-26 | 2021-02-26 | Heavy load monitoring method for marine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216648.2A CN112983668A (en) | 2021-02-26 | 2021-02-26 | Heavy load monitoring method for marine engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112983668A true CN112983668A (en) | 2021-06-18 |
Family
ID=76351033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110216648.2A Pending CN112983668A (en) | 2021-02-26 | 2021-02-26 | Heavy load monitoring method for marine engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112983668A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111078A (en) * | 2022-07-22 | 2022-09-27 | 浙江吉利控股集团有限公司 | Method, device and storage medium for monitoring engine torque |
| CN115324148A (en) * | 2022-08-17 | 2022-11-11 | 三一重机有限公司 | Fault protection control method and device for electric engineering machinery and electric engineering machinery |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1056453A (en) * | 1973-06-20 | 1979-06-12 | Robert A. Yannone | Gas turbine power plant control apparatus including an ambient temperature responsive control system |
| JPS6047844A (en) * | 1983-08-24 | 1985-03-15 | Isuzu Motors Ltd | Back-up apparatus for trouble of diesel engine |
| CA1210834A (en) * | 1981-07-23 | 1986-09-02 | Robert H. Bullis | Method and apparatus for controlling fuel injection timing in a compression ignition engine |
| JPS63140847A (en) * | 1986-12-04 | 1988-06-13 | Mazda Motor Corp | Output controller for diesel engine |
| JPS63314697A (en) * | 1988-05-21 | 1988-12-22 | Matsushita Electric Works Ltd | Fire alarm system |
| JPH04175450A (en) * | 1990-11-07 | 1992-06-23 | Mitsubishi Electric Corp | Troubleshooting device of exhaust gas recirculation control device |
| DE4203247A1 (en) * | 1991-02-18 | 1992-08-20 | Mitsubishi Electric Corp | MISTAKING DETECTOR DEVICE FOR AN INTERNAL COMBUSTION ENGINE |
| JPH0793682A (en) * | 1993-09-20 | 1995-04-07 | Fujitsu Ltd | Alarm optimization device |
| JPH08238016A (en) * | 1996-03-04 | 1996-09-17 | Yanmar Diesel Engine Co Ltd | Control mechanism for overload of working machine |
| KR20020083214A (en) * | 2001-04-26 | 2002-11-02 | 현대자동차주식회사 | A device and method for injection controlling of diesel engine |
| CN102647140A (en) * | 2012-04-24 | 2012-08-22 | 锦州海伯伦汽车电子有限公司 | PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator |
| CN203824754U (en) * | 2014-03-25 | 2014-09-10 | 潍柴动力股份有限公司 | Engine anti-speeding test system |
| CN107097054A (en) * | 2017-05-25 | 2017-08-29 | 杭州泰尚机械有限公司 | A kind of automatic automobile oxygen sensor component press mounting system and its operating method |
| CN110173518A (en) * | 2019-05-24 | 2019-08-27 | 安徽江淮汽车集团股份有限公司 | The control system and method for automatic clutch overload protection |
| CN110649841A (en) * | 2019-08-23 | 2020-01-03 | 沈阳微控新能源技术有限公司 | Integrated control device, system and method based on system of magnetic bearing and motor |
| CN112031919A (en) * | 2020-08-20 | 2020-12-04 | 东风商用车有限公司 | Engine cooling system with double alarm functions and control method |
-
2021
- 2021-02-26 CN CN202110216648.2A patent/CN112983668A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1056453A (en) * | 1973-06-20 | 1979-06-12 | Robert A. Yannone | Gas turbine power plant control apparatus including an ambient temperature responsive control system |
| CA1210834A (en) * | 1981-07-23 | 1986-09-02 | Robert H. Bullis | Method and apparatus for controlling fuel injection timing in a compression ignition engine |
| JPS6047844A (en) * | 1983-08-24 | 1985-03-15 | Isuzu Motors Ltd | Back-up apparatus for trouble of diesel engine |
| JPS63140847A (en) * | 1986-12-04 | 1988-06-13 | Mazda Motor Corp | Output controller for diesel engine |
| JPS63314697A (en) * | 1988-05-21 | 1988-12-22 | Matsushita Electric Works Ltd | Fire alarm system |
| JPH04175450A (en) * | 1990-11-07 | 1992-06-23 | Mitsubishi Electric Corp | Troubleshooting device of exhaust gas recirculation control device |
| DE4203247A1 (en) * | 1991-02-18 | 1992-08-20 | Mitsubishi Electric Corp | MISTAKING DETECTOR DEVICE FOR AN INTERNAL COMBUSTION ENGINE |
| JPH0793682A (en) * | 1993-09-20 | 1995-04-07 | Fujitsu Ltd | Alarm optimization device |
| JPH08238016A (en) * | 1996-03-04 | 1996-09-17 | Yanmar Diesel Engine Co Ltd | Control mechanism for overload of working machine |
| KR20020083214A (en) * | 2001-04-26 | 2002-11-02 | 현대자동차주식회사 | A device and method for injection controlling of diesel engine |
| CN102647140A (en) * | 2012-04-24 | 2012-08-22 | 锦州海伯伦汽车电子有限公司 | PCM (pulse-code modulation) control based automotive generator voltage regulation method and PCM control based automotive generator voltage regulator |
| CN203824754U (en) * | 2014-03-25 | 2014-09-10 | 潍柴动力股份有限公司 | Engine anti-speeding test system |
| CN107097054A (en) * | 2017-05-25 | 2017-08-29 | 杭州泰尚机械有限公司 | A kind of automatic automobile oxygen sensor component press mounting system and its operating method |
| CN110173518A (en) * | 2019-05-24 | 2019-08-27 | 安徽江淮汽车集团股份有限公司 | The control system and method for automatic clutch overload protection |
| CN110649841A (en) * | 2019-08-23 | 2020-01-03 | 沈阳微控新能源技术有限公司 | Integrated control device, system and method based on system of magnetic bearing and motor |
| CN112031919A (en) * | 2020-08-20 | 2020-12-04 | 东风商用车有限公司 | Engine cooling system with double alarm functions and control method |
Non-Patent Citations (1)
| Title |
|---|
| 许东升: "《工程热力学》", 30 September 2015 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111078A (en) * | 2022-07-22 | 2022-09-27 | 浙江吉利控股集团有限公司 | Method, device and storage medium for monitoring engine torque |
| CN115111078B (en) * | 2022-07-22 | 2024-03-19 | 浙江吉利控股集团有限公司 | Engine torque monitoring method, equipment and storage medium |
| CN115324148A (en) * | 2022-08-17 | 2022-11-11 | 三一重机有限公司 | Fault protection control method and device for electric engineering machinery and electric engineering machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112983668A (en) | Heavy load monitoring method for marine engine | |
| CN102022266B (en) | Systems, methods, and apparatus for monitoring and controlling a wind driven machine | |
| US6945047B2 (en) | Apparatus and method for automatic detection and avoidance of turbocharger surge on locomotive diesel engines | |
| CN103573307B (en) | Method and system for monitoring the engine oil temperature of operating engine | |
| RU2244144C2 (en) | System for modification of rotational speed of gas-turbine engine for equalizing excess thrust | |
| JP2008528372A (en) | Power status indicator | |
| US20090024295A1 (en) | System and method for remotely monitoring a turbocharged engine | |
| GB2447238A (en) | Detecting ice shedding in a gas turbine engine | |
| CN203228926U (en) | Marine main engine remote control system | |
| US7636054B2 (en) | Indicator for piloting an aircraft, designed to provide a power parameter of at least one turboprop engine of said aircraft | |
| CN108087115B (en) | Multifunctional aviation piston engine | |
| CN110848017B (en) | Water temperature rationality diagnosis method | |
| CN207229359U (en) | A kind of fuel battery air compressor assembly test device | |
| CN113294324B (en) | Steering engine pump set health state monitoring system and monitoring method thereof | |
| US20050122213A1 (en) | Engine condition indicating device for boat | |
| CN105425675A (en) | Intelligent automobile relay box and control method thereof | |
| CN207000741U (en) | The early warning system of naval vessel propeller | |
| CN104121095A (en) | Fault diagnosis method for rotating speed sensor | |
| CN114675683A (en) | Method and device for controlling internal temperature of medical display | |
| CN107327346A (en) | Monitoring method, device and the engine controller of starter working life | |
| CN114207262B (en) | Method and system for controlling propulsion power output of a ship | |
| CN215264481U (en) | Polymerization kettle valve control system based on DCS | |
| CN109131729A (en) | The early warning system of naval vessel propeller | |
| CN115655704A (en) | Gear health state monitoring system and monitoring method thereof | |
| CN218117877U (en) | Engine oil quality detection system and vehicle |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210618 |
|
| RJ01 | Rejection of invention patent application after publication |