CN204716409U - Marine high-pressure common rail diesel engine automatical control system - Google Patents
Marine high-pressure common rail diesel engine automatical control system Download PDFInfo
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- CN204716409U CN204716409U CN201520345925.XU CN201520345925U CN204716409U CN 204716409 U CN204716409 U CN 204716409U CN 201520345925 U CN201520345925 U CN 201520345925U CN 204716409 U CN204716409 U CN 204716409U
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Abstract
The utility model proposes a kind of marine high-pressure common rail diesel engine automatical control system, comprise Main Control Unit, #1 ~ #6 cylinder controller unit, on the spot control unit and high-speed CAN bus, it is characterized in that, described Main Control Unit is connected by high-speed CAN bus with cylinder controller unit, and described Main Control Unit is connected with alarm system unit with the main engine remote control unit of its exterior, full ship monitoring unit.The system that the utility model proposes can realize accurately controlling fast, and control mode is flexible and changeable, efficiently, energy-conservation.
Description
Technical field
The utility model relates to diesel engine electric control system, especially relates to the pressure control of common rail system of marine high-pressure common rail electronic emission diesel engine, oil spout and emission control field.
Background technique
Diesel engine is the main power resources of boats and ships, and its technological development obtains the extensive attention of diesel engine user and MANUFACTURER always.Traditional mechanical type diesel engine fuel injecting timing, exhaust timing etc. control with camshaft, can only by the mode of operation set when dispatching from the factory, and control strategy is single, inefficiency.
Boats and ships industrialization is upgraded, and domestic and international boat diesel engine constantly carries out product technology innovation.High-pressure common rail technology, high pressure-charging technology, efficient burning technology and electron controls technology etc. are as the important technology of burning with emission control aspect, obtain extensive investigation and application, in order to realize the high efficiency of diesel engine and to reduce discharge amount of exhaust gas, realize flexible and changeable control, meet different diesel engine condition requirements.
Diesel engine electric control system is a Embedded diesel engine control system, the all-electronin that can realize the functions such as fuel oil injection, outlet valve action, diesel engine starting, commutation, parking and cylinder lubrication controls automatically, by to the setting of relevant parameter and amendment, running state and the performance parameter of main frame can be adjusted, also can carry out Real-Time Monitoring to the runnability of main frame, and can with the telechirics on ship, reporting to the police is connected, the operation conditions of main frame is directly reflected.
On high-pressure common rail electronic injection diesel engine, fuel oil sends into common-rail system through high pressure oil pump supercharging, sets up the fuel pressure irrelevant with diesel engine speed.The every cylinder of spraying fire unit controls enters flow and the discharge time of high pressure fuel.Lubricating oil sends into servo oil rail device through servo oil pump pressurization, sets up servo oil pressure.Outlet valve control unit controls outlet valve with high pressure servo oil and opens and closes.Electronic control system: gather various sensor signal, accurately can control the parameter such as oil pressure, oil spout, valve timing of diesel engine, diesel engine can be run by the optimum state under various operating mode, thus reduce exhaust emission significantly, and improve Economy and power character.
Field bus is the automation control system communication modes of mainstream applications now.CAN has the features such as communication reliability, real-time and internet security, and devise diesel engine electric control system based on it, each intelligent node connects into a network, and each subsystem function is reasonable in design, and total system work is good, effectively achieves control system.
Model utility content
The utility model object is for marine high-pressure common rail diesel engine provides a kind of control safe and efficient, can save energy the automatical control system of reduction of discharging.
For realizing the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of marine high-pressure common rail diesel engine automatical control system, comprise Main Control Unit, #1 ~ #6 cylinder controller unit, on the spot control unit and high-speed CAN bus, described Main Control Unit is connected by high-speed CAN bus with cylinder controller unit, and described cylinder control unit is connected with alarm system unit with the main engine remote control unit of its exterior, full ship monitoring unit.
Preferably, described cylinder controller unit is connected with sensor unit and actuator, described sensor unit is made up of at least one in fuel common-rail pressure transducer, servo oil common rail pressure sensor, CKP, speed probe, exhaust gas temperature sensor, air inlet pressure sensor, control air pressure probe, adapt air spring pressure sensor, and described actuator is made up of at least one in oil sprayer, outlet valve, cylinder lubricating oil solenoid valve, fuel common-rail pressure controlled valve, servo oil pressure control of common rail system device, auxiliary blower.
Preferably, described control unit on the spot comprises liquid crystal display panel and control instrument.
Preferably, in system, each unit is communicated by high-speed CAN bus.
Main Control Unit, only one, every platform main frame, primary responsibility, to the management of whole diesel engine and control, realizes whole system initialize routine, rotating speed and load processor, fuel oil and servo oil pressure computer program, Systematical control and touches formula decision procedure, MAP look-up routine etc.External and the communication such as main engine remote control system, monitoring and controlling system for engine room are also provided.Cylinder controller unit, one, each cylinder, main collects the sensor signal relevant with each cylinder, lubricates, bent axle turns to and corner calculating etc. manages and controls to the relevant injection timing of this cylinder, exhaust timing, cylinder oil.Meanwhile, in certain or certain 2 cylinder controller unit, be provided with diesel engine miscellaneous function control program, accept the order of master controller pressure target value, go control actuator and then control fuel common-rail pressure, servo oil common rail pressure etc.
The beneficial effects of the utility model are, calculated by multiple high speed processor and communicate with high-speed field bus, the all-electronin that can realize the functions such as fuel oil injection, outlet valve action, diesel engine starting, commutation, parking and cylinder lubrication on high-tension electricity injection diesel engine controls automatically, control safe and efficient, energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model marine high-pressure common rail diesel engine automatical control system;
Fig. 2 is cylinder controller Unit Design schematic diagram;
Fig. 3 is automatical control system Functional Design schematic diagram;
Fig. 4 is that diesel engine starting arrives normal course of operation figure.
Embodiment
The technological means realized to make the utility model, creative feature, reaching object and function and easily understand and understand, below in conjunction with concrete diagram, tell about the utility model further.
According to an embodiment of the present utility model, the structure of marine high-pressure common rail diesel engine automatical control system as shown in Figure 1, marine high-pressure common rail diesel engine automatical control system, comprise Main Control Unit, #1 ~ #6 cylinder controller unit, control unit on the spot, the compositions such as high-speed CAN bus.Main Control Unit is connected with each cylinder controller unit; Also be connected with outside main engine remote control, full ship monitoring and alarm system etc.On the spot on display unit with liquid crystal display panel and control instrument.High-speed CAN bus is the carrier communicated between each control module of internal system.
The formation of cylinder controller unit as shown in Figure 2, cylinder controller is connected with sensor unit and actuator, sensor unit comprises fuel common-rail pressure transducer, servo oil common rail pressure sensor, CKP, speed probe, exhaust gas temperature sensor, air inlet pressure sensor, control air pressure probe, adapt air spring pressure sensor; Described actuator unit includes oil sprayer, outlet valve, cylinder lubricating oil solenoid valve, fuel common-rail pressure controlled valve, servo oil pressure control of common rail system device, auxiliary blower etc.
Marine high-pressure common rail diesel engine automatical control system major function designs as shown in Figure 3:
(1) operating mode control program: it is mainly made up of originate mode, normal operation mode (fuel-economy sexual norm, low emission control mode, main frame running protection pattern etc.), car-parking model etc.Can according to boats and ships real navigation situation, can by system automatically or by the operating mode of operator needed for different operating position manual switchovers.
(2) host subsystem control program: mainly controlled by cylinder fuel injection amount, fuel common-rail controls, steering monitoring and crank angle calculate, outlet valve controls, servo oil common rail controls, turbosupercharger is run the unit such as controls and formed, it controls each subtense angle operation of diesel engine.
(3) main frame operating mode supervisory process: the various Operational Limitss automatically gathering main frame operating mode, pass through Computer Analysis, controlled by host subsystem control program Optimization of Diesel Engine, make main frame operate in the optimum state all the time, it is mainly made up of unit such as cylinder pressure monitoring, piston ring scuffing monitoring, moment of torsion and vibration monitoring and the management of diesel engine intelligent optimization.
Electric control system controls diesel engine starting is to normal course of operation as shown in Figure 4:
First judge whether starting conditions meets: whether the logical condition that the starting preparations such as signal, main starting valve position signal, starting air pressure signal thrown off by turning engine is suitable.If all satisfied, cylinder passes into high-pressure air to start to start, once arrive ignition rotating speed, stop air, completes high-pressure air starting process.Before carrying out air actuation, automatically controlled servo oil pump is started working, and servo oil common rail pressure is stabilized in system specified value, ensures the action of servo oil supply outlet valve.In air actuation host process, multiple stage high pressure fuel pump is driven by shafting of main engine and runs, and rapidly by the starting pressure value that fuel common-rail pressure stability specifies in system, meets the fuel demand of follow-up oil injection time.According to the signal of speed probe, after reaching ignition rotating speed, each cylinder fuel injection solenoid valve can be sent a signal to, enter oil spout originate mode, now not check and control fuel injection quantity MAP processed, injection timing gets setting value, start with fixing fuel injection pulsewidth, each injection increases with certain step-length, but fuel injection pulsewidth can not be greater than maximum pulse width, until diesel engine speed exceedes setting minimum stable engine speed, proceed to accidental conditions subsequently.When rotating speed reaches minimum stable engine speed time, enter normal speed-regulating mode.In such a mode, in master controller, governor work controls real-time injection process, and then main control system speed.Mainly according to diesel engine carriage clock position and rotating speed, basic fuel injection amount is determined by inquiry fuel injection quantity MAP, in conjunction with accelerated speed restriction, critical speed of rotation control, the restriction of torque oil mass, the restriction of scavenging oil mass and manual oil mass restriction etc., basic oil mass is revised, maximum spout oil mass under the result obtained and current rotating speed is made comparisons, and less value is final total fuel injection quantity.Then according to current common rail pressure, by looking into the corresponding relation MAP of oil mass and pulsewidth, calculating fuel injection pulsewidth, completing Injection Control by spraying fire driven by program fuel injector magnetic system.In such a mode, the calculating of fuel common-rail pressure and servo oil common rail pressure desired value is carried out in master controller, according to the load of engine speed and final fuel injection quantity determination main frame, and then calculate injection pressure desired value, deliver in cylinder controller and control rail pressure further.
More than teach basic principle of the present utility model, main feature.The professional and technical personnel of the industry should understand, and what describe in above-described embodiment and specification just illustrates principle of the present utility model, and under the prerequisite not departing from the utility model spirit and scope, the utility model also has further change and changes.
Claims (4)
1. a marine high-pressure common rail diesel engine automatical control system, comprise Main Control Unit, #1 ~ #6 cylinder controller unit, on the spot control unit and high-speed CAN bus, it is characterized in that, described Main Control Unit is connected by high-speed CAN bus with cylinder controller unit, and described cylinder control unit is connected with alarm system unit with the main engine remote control unit of its exterior, full ship monitoring unit.
2. marine high-pressure common rail diesel engine automatical control system according to claim 1, it is characterized in that, described cylinder controller unit is connected with sensor unit and actuator, described sensor unit is by fuel common-rail pressure transducer, servo oil common rail pressure sensor, CKP, speed probe, exhaust gas temperature sensor, air inlet pressure sensor, control air pressure probe, at least one composition in adapt air spring pressure sensor, described actuator is by oil sprayer, outlet valve, cylinder lubricating oil solenoid valve, fuel common-rail pressure controlled valve, servo oil pressure control of common rail system device, at least one composition in auxiliary blower.
3. marine high-pressure common rail diesel engine automatical control system according to claim 1, is characterized in that, described control unit on the spot comprises liquid crystal display panel and control instrument.
4. marine high-pressure common rail diesel engine automatical control system according to claim 1, it is characterized in that, in system, each unit is communicated by high-speed CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345925.XU CN204716409U (en) | 2015-05-26 | 2015-05-26 | Marine high-pressure common rail diesel engine automatical control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520345925.XU CN204716409U (en) | 2015-05-26 | 2015-05-26 | Marine high-pressure common rail diesel engine automatical control system |
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| CN204716409U true CN204716409U (en) | 2015-10-21 |
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| CN201520345925.XU Expired - Fee Related CN204716409U (en) | 2015-05-26 | 2015-05-26 | Marine high-pressure common rail diesel engine automatical control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781837A (en) * | 2015-12-28 | 2016-07-20 | 沪东重机有限公司 | High-pressure common rail system for marine diesel engine |
| CN109236483A (en) * | 2018-11-02 | 2019-01-18 | 湖北康利安动力科技有限公司 | A kind of diesel engine EFI control synchronous signal acquisition device |
| CN109441647A (en) * | 2018-12-30 | 2019-03-08 | 中国人民解放军陆军军事交通学院镇江校区 | Diesel engine closes the cylinder circulatory system |
| CN110439701A (en) * | 2019-08-12 | 2019-11-12 | 中船动力研究院有限公司 | A kind of multi-cylinder diesel engine electric-control system peculiar to vessel and its oil spout synchronous method |
| CN112502878A (en) * | 2020-12-21 | 2021-03-16 | 广西玉柴机器股份有限公司 | Marine engine control method and common rail system |
-
2015
- 2015-05-26 CN CN201520345925.XU patent/CN204716409U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781837A (en) * | 2015-12-28 | 2016-07-20 | 沪东重机有限公司 | High-pressure common rail system for marine diesel engine |
| CN105781837B (en) * | 2015-12-28 | 2019-02-12 | 沪东重机有限公司 | A kind of high pressure co-rail system of marine diesel |
| CN109236483A (en) * | 2018-11-02 | 2019-01-18 | 湖北康利安动力科技有限公司 | A kind of diesel engine EFI control synchronous signal acquisition device |
| CN109441647A (en) * | 2018-12-30 | 2019-03-08 | 中国人民解放军陆军军事交通学院镇江校区 | Diesel engine closes the cylinder circulatory system |
| CN110439701A (en) * | 2019-08-12 | 2019-11-12 | 中船动力研究院有限公司 | A kind of multi-cylinder diesel engine electric-control system peculiar to vessel and its oil spout synchronous method |
| CN110439701B (en) * | 2019-08-12 | 2021-08-27 | 中船动力研究院有限公司 | Marine multi-cylinder diesel engine electric control system and oil injection synchronization method thereof |
| CN112502878A (en) * | 2020-12-21 | 2021-03-16 | 广西玉柴机器股份有限公司 | Marine engine control method and common rail system |
| CN112502878B (en) * | 2020-12-21 | 2023-09-05 | 广西玉柴船电动力有限公司 | Marine engine control method and common rail system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20160526 |