KR20130093505A - Common rail fuel system for a multi-cylinder bank combustion engine with independently controlled fuel supply to each bank - Google Patents

Abstract

The present invention relates to a fuel supply system (100) configured for use in an internal combustion engine (110), wherein the internal combustion engine (110) has at least two high pressure fuel connection lines between the corresponding common fuel rails (120, 130). Two separate common fuel rails (120, 130). The fuel supply system 100 includes at least one first high pressure pump 140 configured to supply high pressure fuel to the first common fuel rail 120. The first control module 160 is configured to control the operation of the at least one first high pressure pump 140. The at least one second high pressure pump 150 is configured to supply high pressure fuel to the at least one second common fuel rail 130. At least one second control module 170 is configured to control the operation of at least one second high pressure pump 150. The first and second control modules 160, 170 are configured to communicate with each other, one of the first and second control modules 160, 170 is configured to operate as the master control module 170, and the other first And both the second control module 160, 170 can be configured to operate as a slave control module 170.

Description

COMMON RAIL FUEL SYSTEM FOR A MULTI-CYLINDER BANK COMBUSTION ENGINE WITH INDEPENDENTLY CONTROLLED FUEL SUPPLY TO EACH BANK}

The present invention generally relates to a fuel supply system for an internal combustion engine comprising at least two cylinder banks and one common rail associated with each cylinder bank.

The invention also relates to a multi-cylinder bank type internal combustion engine comprising a first bank of cylinders and at least one second bank of cylinders. Each cylinder of the first and second banks may comprise at least one fuel injector. The first common fuel rail may be configured to supply high pressure fuel to each fuel injector of the first bank of cylinders. The at least one second common fuel rail may be configured to supply high pressure fuel to each fuel injector of the at least one second bank of cylinders.

The invention may also relate to one or more electronic control modules (ECMs) configured to control independent common rails of an internal combustion engine, which may not be connected by a high voltage line.

In particular, the multi-cylinder bank internal combustion engine according to the invention can be selected from the group of engines consisting of a radial-cylinder engine, an opposing-cylinder engine, a V-type cylinder engine and a W-type cylinder engine. Such an internal combustion engine may consist of a diesel engine, a gasoline engine or an internal combustion engine configured to burn other types of fuels such as heavy oil, diesel oil, gasoline and natural gas.

EP 2 072 792 A2 discloses a fuel injection internal combustion engine of a V-type configuration. Here, the cylinders and pistons are arranged in two separate planes or "banks" so that they appear to be "V" shaped along the axis of the crankshaft. V-shaped configurations typically reduce overall engine length, height and weight compared to similar series configurations. The two banks of cylinder and piston are fueled by two common rails, one common rail for each bank. The two common rails are connected by high voltage lines. Each common rail is connected to a high pressure fuel pump that supplies high pressure fuel into the associated common rail. The pumping of fuel by the high pressure fuel pump is switched on or off in accordance with operating parameters such as, for example, the speed of the fuel injection internal combustion engine during normal operation of the internal combustion engine by controlling a quantity control valve. One electronic control module (ECM) controls the operation of each high pressure fuel pump so that fuel supply into or out of the common rail is made or not by electronic control of both control valves. In particular, in large engines for powering large ships or ships, the essential high-voltage line connecting two common rails may be a problem. Due to vibrations, high-voltage lines can be a source of danger due to leakage that can occur during operation.

Another fuel supply system comprising two common rails, one for each bank of a V-type engine, is disclosed in US 7,331,238 B2. This known fuel supply system also includes a high pressure line connecting two common rails.

Similar fuel supply systems are disclosed in US 7,234,449 B2. Here, the common rail fuel injector for a multi-bank diesel mobile engine includes a common rail disposed adjacent each bank of several cylinders of the engine to provide high pressure fuel to a fuel flow control device associated with each individual cylinder. . The plurality of high pressure fuel pumps provide high pressure fuel to at least one of the common rails. A high pressure line is provided to deliver high pressure fuel between the two common rails to provide for continuous delivery to all cylinders in the event of one of the high pressure pumps failing.

US 2007/0283935 A1 discloses a V-type internal combustion engine. Internal combustion engines each include a left and right bank having an appropriate number of cylinders. The engine includes a fuel supply mechanism and a control mechanism. The fuel supply mechanism includes first and second fuel pumps. Fuel flows discharged from these two fuel pumps flow together into a common fuel supply passage. The fuel is then dispensed from the fuel supply passages to respective high pressure fuel pipes for the two banks. These high pressure fuel pipes can be configured as common rails. Again, here the high pressure fuel pipes for each bank are connected to each other, which may cause the above-mentioned problem.

Automatic power balancing devices for tandem engines and methods for their operation are disclosed in US Pat. No. 5,771,860. The automatic power balancing device includes a power balancing control unit that regulates power output from the first and second engines that cause a load on each other. The control unit includes an electronic control module electrically connected to the control panel. First and second pressure sensors are coupled to each of the first and second engines. An offset potentiometer is connected to the control panel. The control section automatically adjusts the power output of the second engine in response to a signal generated by the pressure of the first engine, the pressure of the second engine and the offset potentiometer.

US 6,694,242 B2 discloses a dual fuel engine having multiple dedicated controllers connected by a broadband communication link. When the engine operates in the dual fuel mode, one controller controls the gas fuel supply and the liquid fuel supply by the control of the upper controller. When the engine operates only in diesel mode, the upper controller controls all aspects of engine operation.

Other control systems for use in master engines and one or more slave engines are disclosed in US Pat. No. 6,694,741 B2. The master engine generates a master torque and the slave engine generates a slave torque. The master engine and the slave engine include a computer that controls the fuel supply to the engine. The master control computer controls the slave control computer via the interface such that the slave torque is a function of the master torque.

Another control system for a device with an engine is disclosed in US 2008/0133117 A1. Here, the engine includes a first electronic governor. The first electronic governor is operable to control the engine. The engine also includes a memory containing predetermined configuration data. The engine also includes a second electronic governor. The second electronic governor is operable to control the engine. The second electronic governor is connected to the first electronic governor via a data link. The second electronic governor is configured to automatically receive predetermined setting data from the first electronic governor. The system may include more than one engine.

As mentioned above, all known fuel supply systems for supplying high pressure fuel to a plurality of common rails are attributable to the necessary connections between the plurality of common rails, especially for V-type engines with one common rail for each bank of cylinders. There may be a problem. High-voltage lines connecting two common rails can be a hazard. In particular, if the engine is a very large engine, eg installed on a ship or in a power plant for power generation, the required high pressure connection line connecting the two common rails in the V-type engine can extend up to approximately several meters. Thus, due to vibrations and the necessary connection points, there may be a risk of defects at these connection points or along high voltage lines, for example leaks.

US 2010/024773 A1 discloses a method for automatically controlling the pressure of a common rail system on the A-side and a common rail system on the B-side of a V-type internal combustion engine. The rail pressure of the common rail system on the A-side is automatically controlled by the A-side closed loop pressure control system, and the rail pressure of the common rail system on the B-side is automatically controlled by the B-side closed loop pressure control system. Automatic control of each side is independent of the other side. The common set rail pressure is set as a reference input for both closed loop pressure control systems. Thus, this method focuses on a completely independent closed loop pressure control system on each engine side.

The present invention aims to at least partially improve or overcome one or more aspects of conventional systems.

According to a first aspect of the invention, the fuel supply system may be configured for use in an internal combustion engine, which may comprise at least two separate common fuel rails with no high pressure fuel connection lines therebetween. The fuel supply system may include at least one first high pressure fuel pump configured to supply high pressure fuel to a first common fuel rail. The first control module may be configured to control the operation of the at least one first high pressure pump. The at least one second high pressure pump may be configured to supply high pressure fuel to the at least one second common fuel rail. The at least one second control module can be configured to control the operation of the at least one second high pressure pump. The first and second control modules may be configured to be in communication with each other. One of the first and second control modules may be configured to operate as a master control module, and both the other first and second control modules may be configured to operate as slave control modules.

For example, the fuel supply system disclosed herein may include first and second control modules provided as separate software modules integrated into one electronic control module.

Another illustrative example fuel supply system disclosed herein may include first and second control modules provided as separate electronic control modules.

According to a further aspect of the invention, the multi-cylinder bank internal combustion engine may comprise a first bank of cylinders. Each cylinder of the first bank may include at least one fuel injector. The first common fuel rail may be configured to supply high pressure fuel to each fuel injector of the first bank of cylinders. The internal combustion engine may further comprise at least one second bank of cylinders, each cylinder of the at least one second bank including at least one fuel injector. The at least one second common fuel rail may be configured to supply high pressure fuel to each fuel injector of the at least one second bank of cylinders. The first and second common fuel rails may be physically separated from each other without having any fuel connection line between the first and second common fuel rails. In addition, the internal combustion engine may comprise a fuel supply system according to the invention. The internal combustion engine may be selected from the group of engines consisting of a multi-cylinder bank internal combustion engine, a radial engine, an opposing engine, a V-type engine and a W-type engine. In addition, the internal combustion engine may be selected from a group of engines consisting of diesel engines, gasoline engines and engines configured to operate on other types of fuels such as heavy oil, diesel, gasoline and natural gas.

According to another aspect of the invention, a fuel supply system for an internal combustion engine comprising at least two separate common fuel rails without any high pressure connection lines therebetween is provided with at least one first high pressure pump, a first common fuel rail and a first common fuel rail. It may include a first in-line system including a control module. The first in-line system may be configured to be controlled independently by the associated first control module. The second in-line system may include at least one second high pressure pump, a second common fuel rail and a second control module. The second in-line system can be configured to be controlled independently by the associated second control module. The first and second in-line systems may be configured to be independently controlled in master-slave configurations of the first and second control modules. The master control module is configured to calculate the proper operation of the associated high pressure pump such that an appropriate fuel supply of the associated common fuel rail is achieved, and correspondingly control the at least one slave control module such that an appropriate fuel supply of the associated common fuel rail is achieved. Can be.

Another aspect of the invention relates to a method for operating a multi-cylinder bank internal combustion engine. The internal combustion engine may comprise a first bank of cylinders. Each cylinder of the first bank may include at least one fuel injector. The internal combustion engine may further comprise a first common fuel rail configured to supply high pressure fuel to each fuel injector of the first bank of cylinders, and at least one second bank of cylinders, wherein the at least one first of the cylinders Each cylinder of the two banks includes at least one fuel injector. The at least one second common fuel rail may be configured to supply high pressure fuel to each fuel injector of the at least one second bank of cylinders. The first and second common fuel rails may be physically separated from each other without having any fuel connection line between them. The method includes supplying high pressure fuel to the first common fuel rail through at least one first high pressure pump, and supplying high pressure fuel to the at least one second common fuel rail through at least one second high pressure pump. It may include the step. The supply of the high pressure fuel to the first common fuel rail and the supply of the high pressure fuel to the at least one second common fuel rail may be performed with the pressures in the first and second common fuel rails being substantially the same. Can be.

A further aspect of the invention relates to an electronic control module. The electronic control module can include a first software control module configured to function as a master control module. The first software control module may be configured to calculate an appropriate fuel supply of the fuel injectors supplied by the first and second common fuel rails of the internal combustion engine. The first and second common fuel rails can be separated without having any high pressure fuel connection line between the first and second common fuel rails. The electronic control module may further comprise at least one second software control module configured to function as a slave control module. The at least one slave control module may be configured to control the operation of the at least one high pressure pump provided to supply high pressure fuel to the associated second common fuel rail. The first software control module may be configured to calculate an appropriate fuel supply of all fuel injectors provided by the first and second common fuel rails, and to transmit a signal indicative of such an appropriate fuel supply to the at least one slave software control module. Can be.

It should be noted that the master control module can have the following features. The master control module may be configured to calculate an appropriate fuel supply and send a signal indicative of such a suitable fuel supply to the slave control module. Thus, in this exemplary embodiment only the master control module calculates the appropriate fuel supply, and the slave control module receives the appropriate fuel supply already calculated. Based on or according to the calculated appropriate fuel supply, the master control module and the slave control module can independently control each relevant component, such as each associated high pressure pump and / or each associated fuel injector. Calculation of the appropriate fuel supply may include, for example, calculating an appropriate amount of fuel to be injected by one fuel injector for the desired engine operating state according to the desired engine speed.

Other features and aspects of the present invention will become apparent from the following description and the accompanying drawings.

1 is an exemplary schematic diagram of an internal combustion engine comprising two common fuel rails physically separated and a fuel supply system according to an exemplary embodiment of the present invention;
2 is a flowchart of an exemplary embodiment of a method of operating a fuel supply system according to the present invention;
3 is an exemplary schematic diagram of an internal combustion engine including two common fuel rails physically separated and a fuel supply system according to another example embodiment of the present invention.

1, an exemplary embodiment of a fuel supply system 100 according to the present invention is described in more detail. Such a fuel supply system 100 may be used for an internal combustion engine 110 of medium and large size. In particular, the internal combustion engine 110 may have a size and configuration used for example in ships, large ships or power plants. Internal combustion engines of this size may have 12 to 20 cylinders and have a power output in excess of 500 kW per cylinder.

The fuel supply system 100 may be used in an internal combustion engine 110 having at least two separate cylinder banks 300, 400. Each cylinder bank 300, 400 may include a plurality of cylinders 310, 410. Each cylinder 310, 410 may have at least one fuel injector 320, 420. Each fuel injector 320, 420 may be connected to an associated common fuel rail 120, 130.

As already mentioned, each cylinder bank 300, 400 of the multi-bank cylinder engine 110 may have its own individual common fuel rails 120, 130. In accordance with the present invention, these individual common fuel rails 120, 130 are two common fuel rails (so that high pressure fuel cannot flow from one common fuel rail 120, 130 to another common fuel rail 120, 130). No fluid or physical connection may be formed between 120 and 130.

The first common fuel rail 120 may be connected to at least one high pressure pump 140. In the exemplary embodiment shown in FIG. 1, two high pressure pumps 140a and 140b are provided. These high pressure pumps 140a and 140b pass high pressure fuel, eg about 1500 to 2000 bar or more, into the associated first common fuel rail 120 (shown schematically) through a non-return valve 650. It can be configured to supply.

The second common fuel rail 130 may be connected to at least one high pressure pump 150. In the exemplary embodiment shown in FIG. 1, two high pressure pumps 150a and 150b are provided. These high pressure pumps 150a, 150b may be configured to supply high pressure fuel, for example about 1500 to 2000 bar or more, through the check valve 660 into the associated second common fuel rail 130 (shown schematically). .

The first common fuel rail 120 includes a plurality of fuel injectors 320 positioned at various cylinders 310 of the first bank 300 of the cylinder 310 to supply high-pressure fuel accumulated in the first common fuel rail 120. Can be configured to feed). The second common fuel rail 130 includes a plurality of fuel injectors 420 positioned at various cylinders 410 of the second bank 400 of the cylinder 410 for the high-pressure fuel accumulated in the second common fuel rail 130. Can be configured to feed). The first common fuel rail 160 may be provided with a circulation valve 630. The second common fuel rail 170 may be provided with another circulation valve 640. In addition, the first common fuel rail 160 may be provided with a safety valve 610. The second common fuel rail 160 may be provided with another safety valve 620.

In the exemplary embodiment of the invention shown in FIG. 1, the first common fuel rail 120 may have a first pressure sensor 520. Each of the pressure sensors 520 may be configured to send a pressure signal to the first electronic control module (ECM) 160. The pressure signal may be indicative of the pressure in the associated first common fuel rail 120. The second common fuel rail 130 may include a second pressure sensor 530. Each of the pressure sensors 530 may be configured to send a pressure signal to a second electronic control module (ECM) 170. The pressure signal may be indicative of the pressure in the associated second common fuel rail 130. Pressure sensor signals from each rail 120, 130 may be monitored by one ECM 160, 170.

The term ECM can be interpreted broadly so that an electronic control unit (ECU) or similar electronic control device can be included in the term ECM.

The timing and / or duration of operation of the high pressure pumps 140a, 140b and / or associated fuel injector 320 may be controlled by the first ECM 160. The timing and / or duration of operation of the second high pressure pumps 150a, 150b and / or associated fuel injector 420 may be controlled by the second ECM 170. These functions may be integrated into software such that only a small number of ECMs or possibly only one ECM can be used for control of multiple high pressure pumps and / or multiple injectors. A more specific example embodiment of the present invention including integrated software is described below with reference to FIG.

The first ECM 160 associated with the first common fuel rail 120 may be configured to calculate an appropriate fuel supply of the first common fuel rail 120 and the second common fuel rail 130. Calculation of the appropriate fuel supply may include generating a signal indicative of the amount of fuel to be injected by the fuel injector. In particular, the first ECM 160 determines the desired power output of the internal combustion engine 110 and / or determines the appropriate fuel delivery period of the associated high pressure fuel pumps 140a and 140b in order to achieve a suitable fuel supply. Alternatively, it may be configured to determine a fuel injection timing and / or fuel injection delivery period of the associated fuel injector 320.

In addition, the first ECM 160 may be connected to a second ECM 170 associated with the second common fuel rail 130. As already outlined, the second common fuel rail 130 may be configured as the first common fuel rail 120 and may employ the same additional components, such as the high pressure pumps 150a and 150b, the pressure sensor 530 and the like. It can be provided. However, the second ECM 170 may only be configured to receive a signal from the first ECM 160 via the communication line 175 indicating the proper fuel supply. The communication line 175 may be configured as a CAN bus system or the like. These control functions may be integrated in software such that only a small number of ECMs or possibly only one ECM may be used for control of a multi-cylinder bank.

The first in-line fuel system 200 may include at least one first high pressure pump 140a, 140b, a first common fuel rail 120, and a first electronic control module 160. The first in-line fuel system 200 may be configured to be independently controlled by the associated first electronic control module 160.

The second in-line fuel system 210 may include at least one second high pressure pump 150a, 150b, a second common fuel rail 130, and a second electronic control module 170. The second in-line fuel system 210 may be configured to be controlled independently by the associated second electronic control module 170. The engine speed control mechanism 500 and / or the injection timing control mechanism 510 may be connected to the first ECM 160 and / or the second ECM 170. The engine speed control mechanism 500 and / or the injection timing control mechanism 510 may be part of one of the first and second ECMs 160, 170.

According to an exemplary embodiment of the present invention, the electronic control module 160 may be configured as the master ECM 160, and the other electronic control module 170 may be configured as a slave. The terms "master" and "slave" are well known in the art, and thus detailed descriptions of the functions and operations of the two ECMs are omitted. Master and slave control functions can also be integrated into the software so that fewer ECMs or possibly only one ECM can be used to control multiple cylinder banks.

Based on the exemplary embodiment of the present invention shown in FIG. 1 and with reference to the flow chart of FIG. 2, the basic operation and method of operation of the exemplary embodiment of the fuel supply system 100 to be used in connection with the internal combustion engine 110 is described. It is explained below.

The master ECM 160 may include an engine speed detection mechanism 500 or may receive a signal indicative of the current engine speed of the internal combustion engine 110 from an external engine speed detection mechanism. In addition, the master ECM 160 may receive a signal indicative of the pressure in the first common fuel rail 120 and / or the second common fuel rail 130. The master ECM 160 may receive a signal indicative of the desired power output of the internal combustion engine 110.

Based on one or more of these determined or received values, the master ECM 160 may be configured to calculate the correct fuel supply of the plurality of common fuel rails 120, 130. The calculation of the correct fuel supply may include determining the appropriate amount of fuel to be injected by one fuel injector 320, 420. Accordingly, the calculated value may have a unit fuel injector per ^{mm 3 (unit mm 3 / fuel} injector).

In a further method step, the master ECM 160 may calculate the exact timing and time of fuel delivery, such as fuel delivery of the fuel pumps 140a and 140b and / or the precise timing and duration of fuel injection through the fuel injector 320. The timing of the high pressure pumps 140a and 140b and / or their associated fuel injectors 320 may be controlled over time. The master ECM 160 commands to control the associated high pressure pumps 150a and 150b and / or the associated fuel injector 320 in accordance with the exact fuel supply calculated for the slave ECM 170 of the second common fuel rail 130. You may.

In other words, the master ECM 160 may directly control the associated high pressure pumps 140a and 140b and / or the associated fuel injector 320 to supply the high pressure fuel of the correct pressure to the associated common fuel rail 120. . Thus, the first common fuel rail so that the corresponding fuel injector 320 of the first cylinder bank 300 can receive sufficient fuel at the required time and the appropriate amount of fuel can be injected into the individual cylinder chamber of the cylinder 300. Sufficient high pressure fuel may be obtained in 120.

The slave ECM 170 may receive a signal from the master ECM 160 indicating the proper fuel supply, such that the second ECM 170 is associated with the associated high pressure pumps 150a, 150b of the second common fuel rail 130 and / or the like. Alternatively, the fuel injector 420 may be commanded, and accurate calculated fuel supply to the second common fuel rail 130 and / or correct operation of the fuel injector 420 may be achieved. The loop of this method step can be done continuously.

By one or more of the aforementioned method steps, the pressure in the first and second common fuel rails 120, 130 can be maintained at about the same level even if no connection line is provided between the rails 120, 130. have.

Where appropriate, the method steps for determining the desired engine 110 output power may also be based on a signal received from the master ECM 160, which signal may be the first common fuel rail and / or the second common fuel rail ( Pressure in 130).

An exemplary embodiment of the present invention is described with reference to FIG. All parts that are the same as or similar to the above-mentioned parts may have the same reference numerals. Thus, detailed descriptions of these parts may be omitted. The example embodiment shown in FIG. 3 may include only one ECM 700. The ECM 700 may include a first control module 710 and a second control module 720. Both control modules can be provided as software control modules. One software control module may be provided as the master control module 710 and the other software control module may be provided as the slave control module 720. The master control module may be configured to receive information from the speed / timing module and to function as the master ECM described above. The slave control module may receive information from the master control module, such as the slave ECM described above, and may be configured to control the bank 400.

The speed / timing module may be integrated within the ECM 700 or provided externally.

While preferred embodiments of the present invention have been described herein, improvements and modifications may be included without departing from the scope of the claims that follow.

For example, the control module disclosed herein may be further configured to calculate the proper operation of the at least one first high pressure pump and the at least one second high pressure pump such that an appropriate fuel supply of the first and second common fuel rails of the internal combustion engine can be achieved. Wherein the first and second common fuel rails may be in a disconnected state without arranging any high pressure fuel connection lines between the first and second common fuel rails.

For the method described herein, calculating the proper fuel supply of all fuel injectors may further have a configuration comprising providing an amount of fuel to be injected into the associated cylinder chamber by one fuel injector 320, 420. have.

The invention further relates to a computer program. The computer program may include instructions executable within the electronic control module and causing the performance of the method in which the electronic control module may include one or more of the method steps disclosed herein.

In general, the master and slave control functions may be integrated into separate electronic control units, or may be integrated into software so that fewer ECMs or possibly only one ECM may be used for control of multiple cylinder banks.

Claims (15)

A fuel supply system 100 configured for use in an internal combustion engine 110,
The internal combustion engine 110 includes at least two separate common fuel rails 120, 130, and does not have any high-pressure fuel connection line between the common fuel rails 120, 130, and the fuel supply system 100. )silver:
At least one first high pressure pump 140 configured to supply high pressure fuel to the first common fuel rail 120;
A first control module (160; 710) configured to control the operation of the at least one first high pressure pump (140);
At least one second high pressure pump 150 configured to supply high pressure fuel to the at least one second common fuel rail 130;
At least one second control module (170; 720) configured to control operation of said at least one second high pressure pump (150);
The first and second control modules 160, 170; 710, 720 are configured to communicate with each other, and one of the first and second control modules 160, 170; 710, 720 is a master control module 160. 710, and the other first and second control modules 160, 170; 710, 720 are both configured to operate as slave control modules 170; 720.
Fuel supply system. The method of claim 1,
A first in-line fuel system 200, comprising the at least one first high pressure pump 140, the first common fuel rail 120, and the first control module 160; A first in-line fuel system 200, configured to be independently controlled by a first control module 160;
A second in-line fuel system 210, comprising the at least one second high pressure pump 150, the second common fuel rail 130, and the second control module 170; A second in-line fuel system 210, configured to be independently controlled by a second control module 170;
The first and second in-line systems 200, 210 are configured to be controlled independently but are master / slave configurations of the first and second control modules 160, 170; 710, 720.
Fuel supply system 100. 3. The method according to claim 1 or 2,
The master control module 160 (710) is configured to calculate an appropriate fuel supply and send a signal indicative of such a suitable fuel supply to the slave control module (170; 720).
Fuel supply system 100. The method of claim 3,
The master control module (160; 710) receives a signal indicative of the required engine speed of the internal combustion engine (110) and calculates an appropriate fuel supply based on this required engine speed and controls the slave control signal indicative of this fuel supply. Configured to transmit to module 170 (720)
Fuel supply system 100. The method according to claim 3 or 4,
The master control module 160 (710) is:
An engine speed detection mechanism 500 configured to detect the engine speed over time;
An injection timing mechanism 510 configured to set an operation timing of the fuel injectors 320 and 420;
The master control module (160; 710) calculates the proper operation of the high pressure pump (140; 150) such that the proper fuel supply of the first and second common fuel rails (120,130) is achieved, and thus the Configured to control at least one slave control module 170 (720)
Fuel supply system 100. The method according to any one of claims 1 to 5,
A first pressure sensor 520, configured to detect pressure in the first common fuel rail 120, wherein a signal indicative of the common fuel rail pressure may be received by the first control module 160; A first pressure sensor (520), so as to be in communication with the first control module (160; 710);
At least one second pressure sensor 530, configured to detect pressure in the at least one second common fuel rail 170, wherein a signal indicative of the common fuel rail pressure is applied to the at least one second control module ( Further comprises at least one second pressure sensor 530, in communication with the at least one second control module 170; 710, which may be received by 170.
Fuel supply system 100. 7. The method according to any one of claims 1 to 6,
The one control module configured to operate as a master control module 160 (710) further provides for balanced operation of the first common fuel rail 120 and the at least one second common fuel rail 130 to be achieved. Further configured to command the at least one slave control module 170 (720) to
Fuel supply system 100. 8. The method according to any one of claims 1 to 7,
The first and second control modules are provided as separate software modules 710, 720 integrated into one electronic control module 700.
Fuel supply system 100. 8. The method according to any one of claims 1 to 7,
The first and second control modules are provided as separate electronic control modules 160, 170.
Fuel supply system 100. 10. The method according to any one of claims 1 to 9,
The internal combustion engine 110 includes a first bank 300 of cylinders 310 and at least one second bank 400 of cylinders 410, each cylinder of the first bank 300 being the first bank. At least one fuel injector 320 connected to one common fuel rail 120, wherein each cylinder 410 of the at least one second bank 400 is connected to one second common fuel rail 130. At least one fuel injector 420 connected,
The first common fuel rail (120) is configured to supply high pressure fuel to each fuel injector (320) of the first bank (300) of cylinders (310);
The at least one second common fuel rail 130 is configured to supply high pressure fuel to each fuel injector 420 of the at least one second bank 400 of cylinders 410.
Fuel supply system 100. Multi-cylinder bank internal combustion engine 110,
First bank 300 of cylinders 310, with a first bank 300 of cylinders 310, each cylinder 310 of the first bank 300 including at least one fuel injector 320. )Wow;
A first common fuel rail (120) configured to supply high pressure fuel to each fuel injector of the first bank (300) of cylinders (310);
At least one second cylinder bank 400 of cylinders 410, each cylinder 410 of the at least one second bank 400 comprising at least one fuel injector 420, the cylinder 410 At least one second cylinder bank 400;
At least one second common fuel rail (130) configured to supply high pressure fuel to each fuel injector (420) of the at least one second bank (400) of cylinders (410);
A fuel supply system (100) according to any of the preceding claims;
The first and second common fuel rails 120, 130 are separated from each other without any fuel connection line between the first and second common fuel rails 120, 130.
Multi-cylinder bank internal combustion engine. A method of operating a multi-cylinder bank internal combustion engine, the internal combustion engine
First bank 300 of cylinders 310, with a first bank 300 of cylinders 310, each cylinder 310 of the first bank 300 including at least one fuel injector 320. )Wow; A first common fuel rail (120) configured to supply high pressure fuel to each fuel injector (320) of the first bank (300) of cylinders (310); At least one second cylinder bank 400 of cylinders 410, each cylinder 410 of the at least one second bank 400 comprising at least one fuel injector 420, the cylinder 410 At least one second cylinder bank 400; At least one second common fuel rail (130) configured to supply high pressure fuel to each fuel injector (420) of the at least one second bank (400) of cylinders (410); Wherein the first and second common fuel rails 120, 130 are separated from each other without any fuel connection line between the first and second common fuel rails 120, 130. ,
The method comprising:
Supplying high pressure fuel to the first common fuel rail 120 through at least one first high pressure pump 140 controlled by the first control module 160;
Supplying high pressure fuel to at least one second common fuel rail 130 through at least one second high pressure pump 150 controlled by the at least one second control module 170; and;
Supplying high pressure fuel to the first common fuel rail 120 and supplying high pressure fuel to the at least one second common fuel rail 130 may include the first and second common fuel rails 120. 130 is carried out with substantially the same pressure
How to operate a multi-cylinder bank internal combustion engine. The method of claim 12,
Controlling the at least one first high pressure pump (140) by a first control module (160);
Controlling the at least one second high pressure pump (150) by the at least one second control module (170; 710);
Operating one of the first and second control modules (160, 170; 710, 720) as a master control module (160; 710);
Further operating both the other first and second control modules 160, 170; 710, 720 as slave control modules 170; 720.
How to operate a multi-cylinder bank internal combustion engine. The method according to claim 12 or 13,
Calculating an appropriate fuel supply of all fuel injectors of the first and second common fuel rails (120, 130) by the master control module (160; 710);
Transmitting a signal indicative of the proper fuel supply by the master control module (160; 710) to the slave control module (170; 720).
How to operate a multi-cylinder bank internal combustion engine. Electronic control module 700,
A first software control module 710 configured to function as a master control module, wherein the master control module 710 is a fuel supplied by the first and second common fuel rails 120, 130 of the internal combustion engine 110. Configured to calculate an appropriate fuel supply of the injectors 320, 420, wherein the first and second common fuel rails 120, 130 are disposed between the first common fuel rail 120 and the second common fuel rail 130. A first software control module 710, disconnected without any high pressure fuel connection lines arranged;
At least one second software control module 720 configured to function as a slave control module, wherein the at least one slave control module 720 is provided to supply high pressure fuel to the associated second common fuel rail 130. At least one second software control module 720, configured to control the operation of the at least one high pressure pump 160;
The master control module 710 calculates the proper fuel supply of all fuel injectors 320, 420 supplied by the first and second common fuel rails 120, 130, and generates a signal indicative of such a suitable fuel supply. Configured to transmit to the at least one slave control module 720.
Electronic control module.

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