CN113882947A - Instrument display method capable of identifying different faults and responding - Google Patents
Instrument display method capable of identifying different faults and responding Download PDFInfo
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- CN113882947A CN113882947A CN202111165951.0A CN202111165951A CN113882947A CN 113882947 A CN113882947 A CN 113882947A CN 202111165951 A CN202111165951 A CN 202111165951A CN 113882947 A CN113882947 A CN 113882947A
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- 239000007789 gas Substances 0.000 description 5
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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Abstract
The invention discloses an instrument display method capable of identifying different faults and responding, belonging to the technical field of ship instruments.A motor instrument is connected with a motor and a matching system through CAN communication, a motor ECU sends the running parameters, fault codes and response actions of the motor to the motor instrument, the matching system sends the fault codes to the motor instrument, and the motor instrument recodes the received data and displays the data on an interface; the ship instrument displays digital codes, displays the total kudzu weight new codes, can cover all engine faults and matching system faults, directly corresponds to the specific faults, is convenient to read and has lower cost; moreover, the severity of the fault can be intuitively known; meanwhile, faults caused by a matching system are brought into alarm and distinguished from engine faults, and misjudgment is avoided.
Description
Technical Field
The invention belongs to the technical field of ship-plane instruments, and particularly relates to an instrument display method capable of identifying different faults and responding.
Background
With the upgrade of emission, the marine engine also enters an electric control era, and compared with the traditional mechanical pump diesel engine, the electric control engine has the development trend of diversification and refinement, and particularly, the detailed faults can reach hundreds of types. In addition, the matching requirements are synchronously increased, for example, a natural gas engine is provided with a remote control system, a security system and other matching systems besides the action required by the fault of the engine, and the systematic fault of the natural gas engine also requires the action of the engine to respond.
The traditional ship-engine instrument is in digital display, reads parameters such as water temperature, rotating speed, engine oil pressure and engine oil temperature through a new sensor installation mode or a mode of communicating with an ECU, performs corresponding fault alarm and action according to the requirements of laws, monitors few faults, generally does not exceed ten faults, or only can simply display the faults, but cannot display which faults are the faults.
The novel ship-mounted monitoring instrument can adopt a liquid crystal display screen, can directly display fault codes and parameters read from the ECU, but has higher cost, relatively complex operation and higher requirement on crews, and can not completely replace a digital display instrument under the current market environment.
The digital display instrument matched with the electric control engine at present has the following defects:
1. the prior art has fewer faults which can be visually displayed, no more than 10 faults can be distinguished through limited parameter display and alarm lamps, the remaining faults are uniformly subjected to sound-light alarm by lighting and buzzing of the alarm lamps, customers cannot identify specific faults, and the requirement of accurately displaying various faults on a marine monitoring instrument cannot be met;
2. the fault classification is not available, so that the client cannot judge the severity of the fault, and particularly, when the fault has limited torque action, the client cannot distinguish whether the fault causes the problem of misjudgment of the engine, so that the service cost is improved;
3. faults of the matching system cannot be identified, if the voltage of a remote control system is low, the engine has no faults at the moment, but the faults show that the rotating speed of the engine cannot be increased, and the misjudgment of customers is caused.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the instrument display method capable of identifying and responding to different faults is provided, the engine faults and the faults of the matching system are displayed in a recoding mode, the faults are convenient to read, the fault severity is visual, the operation is simple, the faults of the matching system and the engine faults are distinguished, and misjudgment is avoided.
In order to solve the technical problems, the technical scheme of the invention is as follows:
an engine instrument is connected with an engine and a matching system through CAN communication, an engine ECU sends operation parameters, fault codes and response actions of the engine to the engine instrument, the matching system sends the fault codes to the transmitter instrument, and the engine instrument recodes received data and displays the data on an interface; the fault code displayed by the engine instrument comprises a fault level and a fault code, wherein the fault level is used for displaying the severity of the fault, and the fault code is used for displaying specific fault information.
Furthermore, the engine instrument is provided with a warning lamp and a plurality of state lamps for displaying response actions of the engine, and the response actions of the engine comprise torque limitation, fault shutdown, emergency stop, alarm, main power failure, no charging, remote control and noise reduction.
Further, the fault levels include minor faults, general faults, torque limiting faults, shutdown faults, and mating system faults.
Further, the minor fault is a fault that may affect non-core sensor functions, but generally does not affect the engine operation; the general fault is a fault which can possibly affect the operation of the engine, but does not trigger the actions of torque limitation and shutdown fault in a control program; the torque limiting fault is a fault which influences the normal operation of the engine or has a risk when a fault occurs under a high-load working condition, and needs to trigger a control program to limit the output torque action and reduce the output power of the engine; the shutdown fault is a fault which seriously influences the running of the engine, and the engine has great risk of continuing running and needs to be immediately shut down; the auxiliary system fault is a fault that the engine cannot work normally due to the abnormality of the auxiliary system.
Further, when a fault occurs, the engine meter responds according to different fault levels as follows: (1) the fault is a fault which does not need to cause torque limitation and halt among the slight fault, the general fault and the matching fault, the alarm lamp is on, and the buzzer alarms; (2) the fault is a fault needing torque limitation in the torque limitation fault and the fault of the matched system, the alarm lamp and the torque limitation lamp are on, and the buzzer gives an alarm; (3) the fault is the shutdown fault and the fault of emergency stop needing to be triggered in the matching system, when the matching system and the engine instrument are triggered to perform emergency stop action manually, the alarm lamp and the emergency stop lamp are turned on, the buzzer gives an alarm, when the fault causes shutdown and the emergency stop button does not perform action, the alarm lamp and the emergency stop lamp are turned on, and the buzzer gives an alarm.
Further, when the engine is stopped due to a fault in the responses (1) and (2) of the engine meter, the alarm lamp and the fault stop lamp are turned on, and the buzzer gives an alarm.
Further, the fault code displayed by the engine instrument further comprises a fault action code corresponding to the fault action, and the fault action is used as an externally output signal and a working condition change which are set in a control program when the engine breaks down.
Further, the fault code displayed by the engine instrument preferentially displays the fault with high fault severity, and then flashes to display other faults in turn.
Further, the fault code display displayed by the engine instrument preferentially displays the fault with high fault severity, and other faults are displayed through button selection on the engine instrument.
Further, the fault code displayed by the engine instrument consists of four digits.
After the technical scheme is adopted, the invention has the beneficial effects that:
the instrument display method capable of identifying different faults and responding is characterized in that an engine instrument is connected with an engine and a matching system through CAN communication, an engine ECU sends operation parameters, fault codes and response actions of the engine to the engine instrument, the matching system sends the fault codes to a transmitter instrument, and the engine instrument recodes received data and displays the data on an interface; the ship instrument displays the faults by digital display, displays the faults by adding a nixie tube to carry out recoding, provides a fault code comparison table, can cover all the engine faults and the faults of a matching system, can directly correspond to the specific faults, is convenient to read and has lower cost; moreover, the severity of the fault can be intuitively known; meanwhile, faults caused by the matching system are brought into alarm, and the matching system faults are distinguished from engine faults, so that misjudgment is avoided.
Drawings
FIG. 1 is a schematic illustration of an engine gauge of the present invention;
FIG. 2 is a functional block diagram of the present invention;
FIG. 3 is a logical block diagram of a meter display method of the present invention that identifies and responds to different faults;
FIG. 4 is a schematic diagram of a first embodiment of a fault code;
FIG. 5 is a schematic diagram of a second embodiment of a fault code;
in the figure, 1-fault code, 2-fault level, 3-fault code, 4-fault action code, 5-torque limiting lamp, 6-fault stop lamp, 7-emergency stop lamp, 8-alarm lamp, 9-parameter display area, 10-light display area, 11-button area and 12-start knob.
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 fig. 1, 2, 4 and 5, the instrument display method capable of identifying different faults and responding is characterized in that an engine instrument is connected with an engine and a matching system through CAN communication, an engine ECU sends operation parameters, fault codes and response actions of the engine to the engine instrument, the matching system sends the fault codes to a transmitter instrument, and the engine instrument recodes received data and displays the data on an interface. The fault code 1 displayed by the engine instrument comprises a fault level 2 and a fault code 3, wherein the fault level 2 is used for displaying the severity of the fault, and the fault code 3 is used for displaying specific fault information.
As shown in fig. 4, the fault code 1 displayed by the engine meter consists of four digits, the first digit is a fault level 2, and can be set to, for example: 0-shutdown fault, 1-torque limit fault, 2-general fault, 3-slight fault, 4-matching system fault, and the last three bits are specific fault codes 3, and each kind can contain 999 faults and is enough to be used.
As shown in fig. 5, the fault code 1 displayed by the engine meter may further include a fault action code 4 corresponding to a fault action, where the fault action is an externally output signal and a working condition change set in a control program when the engine fails, that is, the first digit still represents a fault level 2, the second digit represents a fault action, such as torque limitation and shutdown, and the latter two digits are a specific fault code 3, which is more intuitive.
The fault code 1 displayed by the engine instrument preferentially displays the fault with high fault severity, preferentially displays the torque-limiting fault when a common fault and a torque-limiting fault are triggered simultaneously, and then displays other faults by flashing in turn, or can selectively display other faults by a button on the engine instrument.
As shown in fig. 1, the engine meter is provided with a warning lamp 8 and a plurality of status lamps for displaying response actions of the engine, including torque limitation, fault shutdown, scram, warning, main power loss, no charging, remote control, and silencing. The interface of the engine instrument comprises a parameter display area 9, a light display area 11, a button area 11 and a starting knob 12 for starting the engine, wherein the parameter display area 9 is used for displaying specific numerical values of rotating speed, oil pressure, water temperature and oil temperature, and an alarm lamp 8 and a status lamp are both positioned in the light display area 11.
The fault level 2 comprises a slight fault, a general fault, a torque limiting fault, a shutdown fault and a matching system fault. A minor fault is a fault that may affect non-core sensor functions, but generally does not affect engine operation; the general fault is a fault which can possibly affect the operation of the engine, but does not trigger the action of torque limitation and shutdown fault in a control program; the torque limiting fault is a fault which influences the normal operation of the engine or has a risk when the fault occurs under a high-load working condition, and the action of limiting the output torque in a control program needs to be triggered to reduce the output power of the engine; the shutdown fault is a fault which seriously influences the running of the engine, has great risk when the engine continues to run and needs to be immediately shut down; the fault of the mating system is a fault that the engine cannot work normally due to the abnormality of the mating system.
As shown in fig. 3, when a fault occurs, the engine gauge responds according to a different fault level 2 as follows:
(1) the fault is a slight fault, a general fault and a fault matched with the general fault, which does not need to cause torque limitation and shutdown, the alarm lamp 8 is turned on, the buzzer alarms, the engine instrument gives an audible and visual alarm, and the engine runs at the moment. Minor faults such as humidity sensor faults act to make appropriate corrections to the engine operating conditions based on ambient temperature and humidity, damage to which does not substantially affect engine operation. General faults such as low throttle voltage do not perform fault action on the engine in the control program at the moment, but the operation of the engine is possibly influenced, different consequences can be caused according to different serious conditions, the low voltage does not greatly influence the throttle action, and the engine performs normal operation at the moment; the second possibility is that the throttle valve cannot reach the normal opening degree, and the engine is represented as insufficient power at the moment; the third possibility is that the throttle cannot be opened, and the engine appears to be stopped, in which case the control procedure is identical.
(2) When the fault is a torque limiting fault and a fault needing torque limiting in the faults of a matching system, such as the security system monitoring gas leakage, the alarm lamp 8 and the torque limiting lamp 5 are on, the buzzer alarms, the engine instrument gives an audible and visual alarm, and the engine runs at the moment. If the torque-limiting fault of the engine is reported in error after the oxygen sensor of the engine is damaged, the closed-loop control of the engine is changed into open-loop control, and the risk of cylinder pulling exists under a large load, so that the torque of the engine is limited when the fault is set in a control program, and the engine is prevented from entering the large load. Unlike the power shortage caused by general faults, the torque limit is the active action controlled by the control program.
If the faults in the steps (1) and (2) cause the engine to stop, the alarm lamp 8 and the fault stop lamp 6 are turned on, the buzzer gives an alarm, and the engine instrument gives an audible and visual alarm. Because the requirement of the ship on safety is strict, according to the requirement of a ship gauge, the shutdown caused by faults has to be provided with corresponding alarm and control actions, so that additional logic needs to be arranged, and the actually occurring consequences are judged, such as low voltage of a general fault throttle valve and faults of a torque-limiting fault ignition system, when the engine is pressed to be flameout by a load due to serious faults, the fault shutdown lamp 6 needs to be turned on instead of only the alarm lamp 8 or the alarm and torque-limiting lamp 5.
(3) The fault is a shutdown fault and a fault which needs to trigger an emergency stop in a matching system, and if the safety protection monitors open fire, the fault needs to be judged according to different situations. When the emergency stop action is triggered by the mating system and the engine instrument manually, the alarm lamp 8 and the emergency stop lamp 7 are turned on, the buzzer gives an alarm, the engine instrument gives an audible and visual alarm, when the shutdown is caused by a fault and the emergency stop button does not act, the alarm lamp 8 and the fault shutdown lamp 6 are turned on, the buzzer gives an alarm, and the engine instrument gives an audible and visual alarm.
The matching system comprises a remote control system, a security system and the like. The faults of the matching system, such as low voltage of a remote control system, cause that the rotating speed of the engine cannot be increased after the rotating speed control is switched to the remote control, and the faults do not need to act under the faults, so that the alarm lamp 8 needs to be turned on, and the faults can be classified into common faults. The matched security system controls the gas supply of the engine, if the gas system has corresponding problems, the engine is required to give a response, if the vaporizer is in poor vaporization and fails, the security system monitors abnormal fluctuation of gas pressure, and in order to ensure the work of the engine, the engine is required to limit torque, the security system transmits fault and torque limit signals through communication with an engine ECU, and the faults can be classified as matched system torque limit faults. If the gas pipeline leaks, the fire risk exists, at the moment, the security system needs to control the engine to be stopped emergently, the security system transmits fault and stop signals through communication, and the faults can be classified and matched system stop faults.
Through the differentiation of supporting system and engine trouble, can directly perceivedly discover the reason of trouble and lie in self or other, when the engine shows that power is not enough, when unusual shut down, can carry out preliminary audio-visual judgement, avoid the emergence of erroneous judgement.
The instrument display method capable of identifying and responding to different faults recodes and displays the running parameters, fault codes and response actions sent by the engine ECU and the fault codes sent by the matching system on the interface through the engine instrument, the fault codes displayed by the engine instrument comprise fault levels and fault codes, the fault levels are used for displaying the severity of the faults, the fault codes are used for displaying specific fault information, the fault reading is convenient, the severity of the faults is visual, the operation is simple, the matching system faults and the engine faults are distinguished, the misjudgment is avoided, and the cost is effectively reduced.
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 (10)
1. An instrument display method capable of identifying different faults and responding is characterized in that an engine instrument is connected with an engine and a matching system through CAN communication, an engine ECU sends operation parameters, fault codes and response actions of the engine to the engine instrument, the matching system sends the fault codes to the transmitter instrument, and the engine instrument recodes received data and displays the data on an interface;
the fault code displayed by the engine instrument comprises a fault level and a fault code, wherein the fault level is used for displaying the severity of the fault, and the fault code is used for displaying specific fault information.
2. The instrument display method capable of identifying and responding to different faults according to claim 1, wherein the engine instrument is provided with a warning lamp and a plurality of status lamps for displaying response actions of the engine, and the response actions of the engine comprise torque limitation, fault shutdown, scram, alarm, main power loss, no charging, remote control and noise reduction.
3. The meter display method of claim 2, wherein the fault levels include minor faults, general faults, torque limited faults, shutdown faults, and mating system faults.
4. The meter display method of claim 3, wherein the minor fault is a fault that is likely to affect non-core sensor functions, but that is generally not detrimental to the operation of the engine;
the general fault is a fault which can possibly affect the operation of the engine, but does not trigger the actions of torque limitation and shutdown fault in a control program;
the torque limiting fault is a fault which influences the normal operation of the engine or has a risk when a fault occurs under a high-load working condition, and needs to trigger a control program to limit the output torque action and reduce the output power of the engine;
the shutdown fault is a fault which seriously influences the running of the engine, and the engine has great risk of continuing running and needs to be immediately shut down;
the auxiliary system fault is a fault that the engine cannot work normally due to the abnormality of the auxiliary system.
5. The meter display method that identifies different faults and responds as claimed in claim 4, wherein when a fault occurs, the engine meter responds according to different fault levels as follows:
(1) the fault is a fault which does not need to cause torque limitation and halt among the slight fault, the general fault and the matching fault, the alarm lamp is on, and the buzzer alarms;
(2) the fault is a fault needing torque limitation in the torque limitation fault and the fault of the matched system, the alarm lamp and the torque limitation lamp are on, and the buzzer gives an alarm;
(3) the fault is the shutdown fault and the fault of emergency stop needing to be triggered in the matching system, when the matching system and the engine instrument are triggered to perform emergency stop action manually, the alarm lamp and the emergency stop lamp are turned on, the buzzer gives an alarm, when the fault causes shutdown and the emergency stop button does not perform action, the alarm lamp and the emergency stop lamp are turned on, and the buzzer gives an alarm.
6. The meter-displaying method that can identify and respond to various faults as claimed in claim 5, wherein when a fault in the responses (1) and (2) of the engine meter causes the engine to stop, the warning lamp and the malfunction stop lamp are turned on, and the buzzer gives an alarm.
7. The meter display method capable of identifying and responding to different faults as claimed in claim 1, wherein the fault codes displayed by the engine meter further include fault action codes corresponding to fault actions, and the fault actions are signals and working condition changes which are set in a control program and output outwards when the engine fails.
8. The meter display method capable of identifying and responding to different faults as claimed in claim 1, wherein the fault code displayed by the engine meter preferentially displays faults with high fault severity and then flashes to display other faults in turn.
9. The meter display method that can identify different faults and respond according to claim 1, wherein the fault code display of the engine meter displays the fault with high fault severity preferentially, and other faults are displayed through button selection on the engine meter.
10. The meter display method that identifies different faults and responds according to any one of claims 1 to 9, wherein the fault code of the engine meter display consists of four digits.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114673588A (en) * | 2022-03-09 | 2022-06-28 | 潍柴动力股份有限公司 | Method and device for judging engine operation fault |
| CN114673588B (en) * | 2022-03-09 | 2023-04-18 | 潍柴动力股份有限公司 | Method and device for judging engine operation fault |
| CN115355087A (en) * | 2022-08-19 | 2022-11-18 | 一汽解放汽车有限公司 | Engine fire fault alarm method and device, electronic equipment and storage medium |
| CN115355087B (en) * | 2022-08-19 | 2024-01-09 | 一汽解放汽车有限公司 | Engine fire fault alarm method and device, electronic equipment and storage medium |
| CN116357454A (en) * | 2023-04-07 | 2023-06-30 | 瑞修得信息科技(无锡)有限公司 | Identification method and device for engine torque limiting state |
| CN116357454B (en) * | 2023-04-07 | 2024-01-12 | 瑞修得信息科技(无锡)有限公司 | Identification method and device for engine torque limiting state |
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