EP1301706A1 - Method for starting a multi-cylinder internal combustion engine - Google Patents

Method for starting a multi-cylinder internal combustion engine

Info

Publication number
EP1301706A1
EP1301706A1 EP20010911427 EP01911427A EP1301706A1 EP 1301706 A1 EP1301706 A1 EP 1301706A1 EP 20010911427 EP20010911427 EP 20010911427 EP 01911427 A EP01911427 A EP 01911427A EP 1301706 A1 EP1301706 A1 EP 1301706A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
cylinder
fuel
internal combustion
combustion engine
qj
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.)
Granted
Application number
EP20010911427
Other languages
German (de)
French (fr)
Other versions
EP1301706B1 (en )
Inventor
Nikolaus Benninger
Gerhard Brueggen
Udo Sieber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N99/00Subject matter not provided for in other groups of this subclass
    • F02N99/002Starting combustion engines by ignition means
    • F02N99/006Providing a combustible mixture inside the cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00Starting aids for combustion engines, not otherwise provided for
    • F02N19/004Aiding engine start by using decompression means or variable valve actuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N9/00Starting of engines by supplying auxiliary pressure fluid to their working chambers
    • F02N9/02Starting of engines by supplying auxiliary pressure fluid to their working chambers the pressure fluid being generated directly by combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02PIGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P15/00Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/08Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders

Abstract

The invention relates to a method for starting a multi-cylinder internal combustion engine (1), especially of a motor vehicle, whereby the position of a piston (2) in a cylinder (3) of the internal combustion engine (1) is determined and fuel is injected into a combustion chamber (4) of the cylinder (3) whose piston (2) is located in a working phase. In order to enable a starting of the internal combustion engine (1) without the use of an electric motor-driven starter in a manner that is as reliable as possible, the invention provides that that the intake valves and/or exhaust valves (5) of at least one cylinder (3), whose piston (2) is located beyond an upper dead center (OT), are brought, before the starting process, into a position that corresponds to a working phase.

Description

Method for starting a multi-cylinder internal combustion engine

State of the art

The present invention relates to a method for starting a multi-cylinder internal combustion engine, particularly a motor vehicle, wherein the position of a piston is determined in a cylinder of the internal combustion engine. It is injected into a combustion chamber of that cylinder fuel whose piston is in a working phase.

The invention also relates to a multi-cylinder internal combustion engine in particular of a motor vehicle. The internal combustion engine includes a detector device for

Determining the position of a piston in a cylinder of the internal combustion engine and a fuel metering system for injecting fuel into a combustion space of that cylinder, whose piston is in a working phase. Finally, the present invention also relates to hrzeugs a control device for such a multi-cylinder internal combustion engine in particular of a force F.

A method of starting a multi-cylinder internal combustion engine of the type mentioned is known for example from DE 31 17 144 AI. The process described therein operates without an electric motor starter. For a stationary internal combustion engine it is injected into the combustion chamber and one or more cylinders, whose pistons are located in the working phase, a necessary amount of fuel for an internal combustion ignited. Thereafter, each injected into the combustion chamber of the cylinder or cylinders, whose pistons perform the next working stroke fuel and ignited when the piston reached that working position. In this way, the internal combustion engine can be formed without an electric starter and thus necessarily related components. In addition, an accumulator of the internal combustion engine can be made smaller because it must not provide more electrical energy for the starter and other electrical components.

In the known method for starting an internal combustion engine of the clock (compression stroke, power stroke, exhaust stroke, intake stroke) in which the individual pistons of the engine and the intake and exhaust valves are the combustion chambers must be followed precisely. This has the result that, for a 4- or 6-cylinder internal combustion engine at each cycle of the internal combustion engine in each case only the combustion chamber of a single cylinder - namely, the cylinder whose piston in

Working position is - filled with fuel and the fuel can be ignited. The known method is limited to internal combustion engines, in which the one of compression stroke, expansion stroke, exhaust stroke and intake stroke are run through in a fixed sequence for each cylinder, and in which, secondly, the distribution of the cycles is preset to the individual cylinders.

is still on the way of further background art

DE referenced 197 43 492 Al, from which a method for starting an internal combustion engine without an electric starter is also known.

The object of the present invention is based on a multi-cylinder internal combustion engine without electrical

Starter in the simplest possible way, fast and yet to start reliably.

To achieve this object, the invention proposes, starting from the method of the aforementioned type, that the inlet and / or outlet valves of at least one cylinder, the piston is after top dead center ", are brought before the starting operation into one of a working phase corresponding position ,

The inventive method has, for example, a camshaft-free control of the intake and / or exhaust valves. Thus, each intake and exhaust valves separately from the other and controlled independently of the position of the camshaft can be. For camshaft-free control of the intake and / or exhaust valves, either individually or several together equipped with an actuator. The actuator may hydraulic, piezoelectric, electromagnetic or work in other ways. From the prior art, a plurality of camshaft-free control of inlet and exhaust valves are known which can be used in conjunction with the present inventive method.

Alternatively, the inventive method includes, for example, via a variable cam plate on the inlet side in order to adjust an early intake closing of the intake valves. The Einlassnockenwelie can be adjusted such that the intake valves are briefly opened during the suction only at the beginning and are thus brought into a position corresponding to the working phase. Thus, a former inlet circuit can be set on the inlet side.

In the inventive process, the valves can be independently and - as far as it allows the valve clearance - be freely opened or closed. In this way it is possible vice versa before or during startup of an induction into a working phase and. In a corresponding manner, the change from a compression phase to an ejection phase and vice versa is possible.

With the inventive method it is now possible to bring at a 4- or S-cylinder internal combustion engine at the beginning of the starting process in two cylinders a working phase corresponding position. In the combustion chamber of these two cylinders, fuel is simultaneously injected and the fuel-air mixture is ignited at the same time. The double combustion leads to a particularly strong initial acceleration of the crankshaft and therefore to an especially short starting operation. The double combustion provides enough reserve to overcome any friction and compression resistance safe to start the boot process.

Then, it is injected into the combustion chamber of a compression phase is located in the further cylinder fuel and ignited the compressed fuel-air mixture. The start of injection into the combustion chamber of the other cylinder can - if the injection pressure is high enough - be relocated to the progressive compression phase until shortly before reaching top dead center. By the second combustion, the rotation of the crankshaft is further accelerated. During the further course of the starting operation, fuel is injected into the combustion chambers of itself located in the suction cylinders and ignited the left in the combustion chambers of compressed fuel-air mixture. Again, the injections may alternatively be during the compression phase if the injection pressure is high enough.

According to an advantageous development of the present invention it is proposed that - are the intake and / or exhaust valves of another cylinder whose piston is located before a top dead center, placed in a position corresponding to a compression phase; of the in-the working phase into the combustion chamber at least one cylinder, fuel is injected; which is ignited in the at least one cylinder injected fuel in the working phase; Fuel is injected into the combustion chamber of the other is located in the compression phase cylinder; which is ignited fuel compressed in the combustion chamber of the other cylinder; and injected in the further course of the starting operation in the combustion spaces of either be located in an intake phase or a compression phase in cylinders and the fuel compressed in the combustion chambers, fuel is ignited.

a combustion is caused by ignition of the fuel injected into the cylinder at least one fuel in the working phase by which the crankshaft of the internal combustion engine is put into a forward rotation. This rotational movement is continued by igniting the compressed in the combustion chamber of another cylinder fuel or even accelerated. Finally, fuel is in the further course of the starting operation in the combustion spaces injected and compacted in the combustion chambers fuel - therefore at the end of the compression phase or at the beginning of the working phase - ignited. if the injection pressure is high enough - - In the further course of the starting operation of the fuel into the intake phase or is injected into the compression phase in the combustion chambers. The starting process is preferably continued until the internal combustion engine is started and is running automatically in normal operation.

According to a particularly preferred embodiment of the present invention it is proposed that - the inlet and / or outlet valves of two cylinders, the pistons of which are after a top dead center corresponding position be brought into a working phase; is injected into the combustion chamber of the two is in the working cylinder fuel phase; and the fuel injected into the two cylinder fuel is ignited in the working phase. This embodiment allows a double combustion, leading to a particularly strong initial acceleration

Crankshaft and thus leads to a particularly short starting operation.

According to a preferred embodiment of the present invention it is proposed that the inlet and / or

Exhaust valves of the Brεnnräume be brought into the appropriate position of the working phase by means of a camshaft-free control.

Alternatively, it is proposed that the inlet and / or outlet valves of the combustion spaces are brought by such an adjustment of an intake camshaft of a variable camshaft adjuster in the appropriate work phase position that the inlet valves are briefly opened in an induction only at the beginning. Characterized 5 a former inlet circuit can be set to the intake side. In a 4-cylinder internal combustion engine that does not at the beginning of the starting process in two cylinders of the working phase corresponding position. In the combustion chamber of the two cylinder 0, fuel is simultaneously injected and the fuel-air mixture is ignited at the same time. The double combustion leads to a particularly strong initial acceleration of the crankshaft and therefore to an especially short starting operation. 5

extra degrees of freedom resulting from the inventive method in which Ξtartvorgang that can be used to, inter alia, according to the invention, after an unsuccessful first ignition of a second start-up attempt

initiate 20th According to a preferred embodiment of the present invention there is provided that- after an unsuccessful first ignition of the fuel injected into the cylinder at least one fuel in the working phase, the method once again with inverted phases of the individual

25 cylinders is performed. The first ignition is, for example, unsuccessful when the internal combustion engine is moving or not a first compression resistance of the cylinders could not be overcome. In such a case, the inventive method is once again - with

30 inverted phases of the individual cylinders - performed. This means that the intake and exhaust, which were taken at the position corresponding to the first attempt to start in one of the working phase, are now brought in an intake phase of the corresponding position. As well

35 are the intake and exhaust, which were taken at the position corresponding to the first attempt to start in one of a compression phase, now brought into a corresponding position of the ejection phase. In the second attempt at starting the injection of fuel into the combustion chambers and the ignition of the compressed fuel in the combustion chambers in the manner described above takes place.

According to an advantageous development of the present invention it is proposed that the pistons of the cylinders are placed at the beginning of the start operation in a predetermined initial position. In this way it can be ensured also in internal combustion engines with less than four cylinders, that the piston of at least one cylinder of the internal combustion engine is in an optimal for carrying out the starting process according to the invention position. Thereby, a maximum initial acceleration of the crankshaft can be generated during the boot process to the first combustion. For moving the pistons in the cylinders, an electric motor starter can be used, acting on the crankshaft of the internal combustion engine and rotates.

According to a preferred embodiment of the present invention that the compacted in a combustion chamber of a cylinder fuel is ignited towards the end of the compression phase shortly before the top dead center of the piston of the respective cylinder is proposed. Alternatively, the compressed fuel may also be ignited shortly after or at the top dead center of the piston of the respective cylinder.

Advantageously, the fuel during the startup procedure by a prefeed pump of the

Fuel metering injected into the combustion chambers. The pre-feed pump is, for example, as a driven independently of the internal combustion engine electric fuel pump formed. A pre-feed pump is used, for example. In a common-rail fuel metering system for delivering fuel from a fuel tank into a low pressure area of ​​the Kra tstoffzumesssystems.

Alternatively, the fuel during startup is injected through a driven independently of the internal combustion engine high-pressure pump of the fuel metering to the combustion chambers is proposed. In a common-rail fuel metering system, for example. The high-pressure pump delivers fuel from the

Low-pressure region of the fuel metering system at high pressure in a high pressure accumulator. From the high-pressure accumulator injection valves branch off, is injected via the fuel from the high-pressure accumulator into the combustion chambers of the cylinders. The high pressure pump may be electrically driven, for example.. Using a high-pressure pump particularly high injection pressures can be achieved during the boot process, so that the injection timing can be shifted during startup readily the progressive compression phase until shortly before reaching top dead center.

In order to reduce the compression resistance during the inventive startup process, it is proposed according to a preferred embodiment of the present invention is that during the starting process in a compression phase of a cylinder of the internal combustion engine, the corresponding inlet valve of the cylinder is delayed or premature closed. Thereby, each run-through compression phase by delayed closing of the respective intake valves - these are open during take place before the compression phase induction phase - be shortened in an advantageous manner. In this manner, the crankshaft of the internal combustion engine can be rotated by the first combustion at the start of the starting process according to the invention much easier in a rotational motion and the internal combustion engine to be started. For the same purpose may alternatively be delayed, the corresponding inlet valve of the cylinder during startup in an induction a cylinder of the internal combustion engine or prematurely closed.

Of particular importance is the implementation of the method according to the invention in the form of a control that is for a control unit of an internal combustion engine, in particular of a motor vehicle. A program is stored on the control, which is suitable on a computer, in particular on a microprocessor, executes and for performing the method according to the invention. In this case, the invention is realized by a program stored on the control program, so that this control is provided with the program in the same way is the invention as the method for the execution of the program is suitable. As a control, an electric storage medium can be used in particular, such as a read-only memory or a flash memory.

As a further solution to the object of the present invention, starting proposed by the multi-cylinder internal combustion engine of the type mentioned above that the internal combustion engine means for adjusting intake and / or exhaust valves of at least one cylinder, whose piston is after top dead center, before the starting process has in a corresponding position a working phase.

According to an advantageous development of the present invention it is proposed that the internal combustion engine has a camshaft-free control of inlet and / or outlet valves of the combustion chambers. Alternatively, it is proposed that the internal combustion engine having on the inlet side of a variable camshaft divider for setting an early intake circuit of the intake valves.

According to a preferred embodiment of the present invention it is proposed that the engine means for moving the piston of the cylinder has in a predeterminable initial position at the beginning of startup.

Finally, it is proposed that the fuel metering system has a driven independently of the internal combustion engine high-pressure pump for building up a fuel injection pressure.

As yet another solution of the present invention, starting proposed by the control unit of the type mentioned, that the control unit comprises means for carrying out the method according to the invention. Thus, the controller performs for starting an internal combustion engine of a controlling participating in the inventive startup components of the internal combustion engine, especially of fuel metering and ignition. The control unit receives the command to start the

Internal combustion engine, for example. By the operation of an ignition key or a starter button.

Further features, application possibilities and advantages of the invention will become apparent from the following description of embodiments of the invention, which are illustrated in the drawing. All the features described or depicted, or in any combination form the subject of the invention, irrespective of their summary in the claims or their

And regardless of their formulation or presentation in the description or in the drawing. Show it:

Fig. 1 is a schematic block diagram of an internal combustion engine according to the invention a

Motor vehicle in accordance with a preferred embodiment;

Fig. 2 is a schematic diagram of a first embodiment of an inventive

Process for starting the internal combustion engine of FIG. 1;

Fig. 3 is a schematic diagram of a second embodiment of an inventive

Process for starting the internal combustion engine of FIG. 1; and

Fig. 4 is a schematic diagram of a third embodiment of an inventive

Process for starting the internal combustion engine in FIG. 1.

In Fig. 1, an internal combustion engine in its entirety is designated by reference numeral 1. The internal combustion engine 1 has a piston 2 which reciprocates in a cylinder 3 and is herbewεgbar. The cylinder 3 is provided with a combustion chamber 4 via valves to the 5 an intake pipe 6 and an exhaust pipe are connected. 7 Furthermore, the combustion chamber 4 a controllable with a signal TI

Injection valve 8 and a controllable associated with a signal ZW spark plug. 9

In a first mode, the shift operation of the internal combustion engine 1, the fuel from the injection valve 8 is injected into the combustion chamber 4 during an evoked by the piston 2 compression phase, namely locally in the immediate vicinity of the spark plug 9, and immediately prior in time to the top dead center OT the piston 2 and before the ignition timing. Then 5 is ignited, the fuel 9 with the aid of the spark plug, so that the piston 2 is driven in the following work phase by the expansion of the ignited fuel.

0 In a second mode, the homogeneous operation of the internal combustion engine 1, the fuel from the fuel injector 8 during one caused by the piston 2 induction is injected into the combustion chamber. 4 By simultaneously sucked air, the injected fuel is swirled 5 and thus in the

Combustion chamber 4 distributed substantially uniformly (homogeneously). Thereafter, the air-fuel mixture is compressed during the compression phase, to be then ignited by spark plug. 9 Through the expansion of the ignited fuel 0 of the piston 2 is driven.

In the shift operation as well as in homogeneous operation is rotated by the driven piston 2, a crankshaft 10 in a rotary motion via the driven ultimately the wheels of the motor vehicle 25. The crankshaft 10 is associated with a rotational speed sensor 11, which generates in response to the rotational movement of the crankshaft 10, a signal N.

The fuel is in stratified mode and the homogeneous mode,

30th under a high pressure through the injection valve 8 in the

Combustion chamber 4 is injected. For this purpose, an electric fuel pump as a prefeed pump and a high pressure pump is provided, the latter to be driven by an electric motor of the internal combustion engine 1 or 35 can. The electric fuel pump is driven independently of the internal combustion engine 1 and generates a so-called rail pressure EKP of at least 3 bar, and the high pressure pump generates a rail pressure HD up to about 200 bar.

The injected in stratified operation and homogenous operation of the injection valve 8 in the combustion chamber 4 mass of fuel is controlled by a control unit 12, in particular in view of low fuel consumption and / or low pollutant emission and / or regulated. For this purpose, the control device 12 is provided with a microprocessor having stored in a control element, especially in a read-only memory, a program that is adapted to perform said control and / or regulation.

The control unit 12 receives input signals representing the measured operating variables of the internal combustion engine. 1 For example, the control unit 12 with a cylinder disposed in the intake pipe 6 air mass sensor, a disposed in the exhaust pipe 7

Lambda sensor and / or connected to the speed sensor 1_L. Further, the control unit 12 connected to an accelerator pedal sensor 13 which generates a signal FP indicating the position of an accelerator pedal actuated by a driver.

The control unit 12 generates output signals which, via actuators, the behavior of the internal combustion engine 1 according to the desired control and / or regulation may be influenced. For example, the control unit 12 with the

Injection valve 8 and is connected to the spark plug 9 and generates the signals required to drive the TI, ZW.

In Figs. 2 to 4 three different erfindungsge ate method for starting a 4-cylinder internal combustion engine 1 in the form of diagrams are shown schematically. The individual lines of the diagrams refer to the indicated cylinders 3 of the engine 1. The different cylinders 3 are marked with numbers. The individual columns of the graphs relating to the phases or cycles in which the piston 2 of the corresponding cylinder 3 is located. Each of the pistons 2 can be located there in an intake phase, a compression phase, a working phase or a discharge phase. The transitions between the individual phases are indicated by the top dead center OT of the piston. 2 In that regard, the horizontal axis along the phases of the piston 2 a rotational angle of crankshaft degrees of the crankshaft 10 constitute, in dashed lines the position of the internal combustion engine 1 is shown before the start, that is, the position during standstill of the internal combustion engine 1.

In the illustrated in the figures and described in the following procedures, the speed sensor 11 is formed as an absolute angle transducer. This means that the rotational speed sensor 11 at any time, especially after a stop of the internal combustion engine 1, the rotational angle generated ° KW and passes it to the control unit 12th In this way, the position of the piston 2 in the cylinder 3 may be determined before the start of the startup process. Alternatively, the crankshaft 10 can be also displaced by an electric motor starter in a necessary rotation, so that the rotational speed sensor 11 can signal the position of the piston. 2

In the method of Fig. 2 (, the combustion chamber 4 is closed position of the piston 2 after TDC) of the cylinder no. 1 is at a standstill internal combustion engine 1 in its operating phase. At the beginning of the starting process 1, fuel is injected into the combustion chamber 4 of the cylinder. ID. If the high-pressure pump driven by the internal combustion engine 1, the injection takes place only on rail pressure EKP of the electric fuel pump. Otherwise

- the high-pressure pump is driven independently of the internal combustion engine 1 - the fuel is injected for the purpose of mixture preparation under high pressure into the combustion space. 4 Then, the injected fuel is ignited. This has a first combustion result, by which the crankshaft is displaced in a forward rotational movement of the tenth

Immediately thereafter, fuel into the cylinders Nos. 3 is injected. This is due to the closed valve 5 and the upgoing piston 2 in its compression phase. The injection timing can

- if the injection pressure is high enough - be relocated to the progressive compression phase until shortly before reaching top dead center OT. A sufficiently high injection pressure can be generated by means of a independent of the internal combustion engine 1 driven high-pressure pump, for example.. Shortly before or after reaching the top dead center TDC, the compressed fuel-air mixture is ignited and there is a second combustion, through which the rotary motion of the crankshaft is accelerated further 10th

The other injections and ignitions positions of the valves 5 are shown in the diagram, the example of the cylinder Nos. 4 and the cylinder No. 2,. Accordingly, the additional injections take place during the induction phase of each cylinder # 3. Alternatively, carried the additional injections during the compression phase if the injection pressure is sufficiently high. The other firings take place towards the end of the compression phase shortly before or shortly after reaching top dead center OT.

The intake and exhaust valves 5 of the combustion chamber 4 are adjusted by means of a camshaft-free control. In addition, each inlet and exhaust valve 5 is equipped with its own actuator. Thus, the valves can be independently and freely 5 - open or closed - to the extent permitted by the valve clearance. In this way it is possible, by an induction into a working phase and vice versa. In a corresponding manner, the change from a compression phase in a discharging phase and vice versa is possible. Due to the camshaft-free control of the valves 5, the intake and / or exhaust valves 5 can be brought at the beginning of the start operation in a predetermined position in order to create optimum conditions for starting the internal combustion engine 1 without electric motor starter.

In addition, the phases of all the cylinders 3 can be inverted in a simple manner after an unsuccessful first attempt at starting for a second attempt at starting, that is, switching between the compression phase and discharge phase, and between the working phase and suction phase. An unsuccessful first attempt at starting is eg. In front when the

Internal combustion engine 1 is not moving or the * first compression resistance could not be overcome. In the embodiment of FIG. 2, the operation phase is the second start attempt thus for the cylinder no. 4 at the beginning of the start operation before. Then fuel into the cylinders Nos. 2 is injected, which is then in the compression phase. In the further course of the starting operation fuel. 2 is then injected and ignited in the cylinder no. 1 and no.

To reduce the Kompresεionswiderstand during the inventive startup, each run-through compression phase can by delayed or advanced closing the corresponding intake valves 5 - be suitably shortened - they are open during the negotiations taking place before the compression phase induction. The described method is applicable, with appropriate modifications also in internal combustion engines 1 having more than four cylinders.

In the method according to FIG. 3, the cylinder no. 1 and no. 4 cylinder is by closing the valves 5 in the working phase. In both cylinder 3 fuel is injected and ignited simultaneously. The double combustion leads to a strong initial acceleration of the crankshaft 10 and therefore to an especially short

Startup process. The double combustion are at the beginning of the starting operation sufficient reserves available to overcome any friction and compression resistance of the engine 1 safely.

All other injection systems, ignition and valve positions correspond to those of the method of Fig. 1 and 3 can be taken directly from the diagram in Fig.. Of course, in this embodiment of the method according to the invention

Compression resistances are reduced by each run-through compression phase is shortened by delayed or advanced closing the corresponding intake valves 5 suitable. With appropriate modifications, this embodiment of the inventive method is applicable with more than four cylinders also in internal combustion engines. 1

The embodiment of the method illustrated in FIG. 4 may be at a

Internal combustion engine 1 are carried out, which has on the inlet side of a variable camshaft adjuster for adjusting an early inlet closure of the inlet valves. 5 The cylinder no. 1 is located at the beginning of the startup process in his work phase. For in the

Piston movement to cylinders Nos. 1 parallel cylinders Nos. 4 mdd QJ d "

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Case represents a relatively small actuator speed. Accordingly, is located in the second and third intake yet an early intake closing before. but this is irrelevant for the required quantities in the starting phase.

The embodiment of the inventive method described can be applied with appropriate modifications, also in internal combustion engines 1 having more than four cylinders. In internal combustion engines 1 with less than four cylinders, it may happen that at the beginning of the

Starting operation none of the piston 2 is located in its working phase. In this case, however, is a piston 2 in its suction phase. Then, the intake camshaft can be adjusted in such a way that the cylinder 2 shifts from the suction phase quasi in the working phase. Also in this case, the internal combustion engine 1 can therefore start without an electric motor starter.

According to a further embodiment of the present invention (not shown), the intake camshaft at the beginning of the start operation is not shifted, that is, -the cylinder no. 4 in Fig. 4 remains in its intake phase. Consequently, 1 fuel is injected and ignited only in the cylinder. ID. After an unsuccessful ignition - the internal combustion engine 1 does not move or

Compression resistance could not be overcome - a second launch attempt is performed. For this purpose, the inlet camshaft is moved in the direction indicated in the description of FIG. 4 manner. Thus, now 4, the operation phase is for the cylinder no. Before the start of the boot process. Injections and ignitions now be - excluding the cylinder # 1 at the beginning of the boot process -. According to the specified in the embodiment of Figure 4 procedure..

Claims

claims
1. A method for starting a multi-cylinder
Internal combustion engine (1), particularly of a motor vehicle, wherein the position of a piston (2) in a cylinder (3) of the internal combustion engine (1) is determined and fuel into a combustion chamber (4) of that cylinder (3) is injected, the piston (2) is in a working phase, characterized in that the intake and / or exhaust valves (5) at least one cylinder (3) whose piston (2) is located after a top dead center, before the starting process in one of a working phase corresponding position are brought.
2. The method according to claim 1, characterized in that the inlet and / or outlet valves (5) of another cylinder (3) whose piston (2) is located before a top dead center in one of a
Compression phase corresponding position be brought; in the combustion chamber (4) of the in-the working phase at least one cylinder (3), fuel is injected; the fuel injected in the at least one cylinder (3)
Fuel is ignited in the working phase; in the combustion chamber (4) of the in-phase further the compression cylinder (3), fuel is injected; in the combustion chamber (4) of the further cylinder (3) compressed fuel is ignited; Cylinders and in the further course of the starting operation in the combustion chambers (4) located on either in an intake phase or a compression phase
injected (3) fuel and the combustion chambers in the
(4) a compressed fuel is ignited.
3. The method according to claim 2, characterized in that the inlet and / or outlet valves (5) of two cylinders (3) whose piston (2) are located after a top dead center corresponding position be brought into a working phase; - in the combustion chamber (4) of the two cylinders is in the working phase (3), fuel is injected; and in the two cylinders (3) injected fuel is ignited in the working phase.
4. The method according to any one of claims 1 to 3, characterized in that the inlet and / or exhaust valves
(5) of the combustion chambers (4) by means of a camshaft-free control in which the working phase corresponding position are brought.
5. A method according to any one of claims 1 to 3, characterized in that the inlet and / or exhaust valves
(5) of the combustion chambers (4) by such an adjustment of an intake camshaft of a variable
are brought camshaft adjuster in the corresponding phase of the working position, that the intake valves (5) are briefly opened in an induction only at the beginning.
6. The method according to any one of claims 1 to 5, characterized in that, after an unsuccessful first ignition of the fuel injected into the at least one cylinder (3) fuel, the process is carried out once more with inverted phases of the individual cylinders (3) in the working phase.
7. The method according to any one of claims 1 to 6, characterized in that the piston (2) of the cylinder (3) at the beginning of the start operation are brought into a predeterminable initial position.
8. A method according to any one of claims 1 to 7, characterized in that in a combustion chamber (4) of a cylinder (3) compressed fuel shortly before reaching the top dead center of the piston (2) of the respective cylinder (3) towards the end of the compression phase is ignited.
9. The method according to any one of claims 1 to 8, characterized in that the fuel during the starting process by a prefeed pump of the fuel metering to the combustion chambers is injected (4).
10. The method according to any one of claims 1 to 8, characterized in that the fuel during the starting process by a independent of the
Internal combustion engine (1) driven high-pressure pump of the fuel metering to the combustion chambers (4) is injected.
11. A method according to any one of claims 1 to 10, characterized in that during the starting process in a compression phase of a cylinder (3) of the
Internal combustion engine (1), the corresponding inlet valve (5) of the cylinder (3) delayed or premature is closed.
12. The method according to any one of claims 1 to 10, characterized in that during the starting process in an intake phase of a cylinder (3) of the internal combustion engine (1), the corresponding inlet valve (5) of the cylinder (3) delayed or premature is closed.
13 control, in particular Read-Only-Memory or Flash-Memory, for a control unit (12) of an internal combustion engine (1), in particular a motor vehicle, on which a program which can run on a computer, in particular on a microprocessor, executes and embodiment of a method is suitable according to one of the preceding claims.
14. A multi-cylinder internal combustion engine (1), particularly of a motor vehicle, the internal combustion engine (1) comprises a detector device for determining the position of a piston (2) in a cylinder (3) of the internal combustion engine (1) and a fuel metering system for injecting fuel (into a combustion chamber 4) of that cylinder (3) whose piston (2) is in a working phase, for performing the method according to any one of claims 1 to 11, characterized in that the internal combustion engine (1) comprises means for adjusting intake and / or exhaust valves (5) comprises corresponding position of at least one cylinder (3) whose piston (2) is located after a top dead center, before the starting process in one of a working phase.
15. internal combustion engine (1) according to claim 14, characterized in that the internal combustion engine (1) a camshaft-free control of inlet and / or outlet valves (5) of the combustion chambers (4).
16. Brennkraf machine (1) according to claim 14, characterized in that the internal combustion engine (1) on the
Einlasssεite having a variable camshaft adjuster for adjusting an early inlet closure of the inlet valves (5).
17. internal combustion engine (1) according to any one of claims 14 to 16, characterized in that the internal combustion engine (1) comprises means for moving the piston (2) of the cylinder (3) into a predeterminable initial position at the beginning of startup.
18. internal combustion engine (1) according to any one of claims 14 to 17, characterized in that the fuel metering system has an independent of the internal combustion engine (1) driven high-pressure pump for building up a fuel injection pressure.
19, the control unit (12) of a multicylinder internal combustion engine (1), in particular of a motor vehicle, the internal combustion engine (1) comprises a detector device for determining the position of a piston (2) in a cylinder (3) of the internal combustion engine (1) and a
Fuel metering system for injecting fuel into a combustion chamber (4) of that cylinder (3) whose piston (2) is in a working phase, characterized in that the control unit (12) includes means for performing the method according to one of claims 1 to 11 having.
EP20010911427 2000-04-22 2001-02-07 Method for starting a multi-cylinder internal combustion engine Expired - Fee Related EP1301706B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2000120104 DE10020104A1 (en) 2000-04-22 2000-04-22 Method for starting a multi-cylinder internal combustion engine
DE10020104 2000-04-22
PCT/DE2001/000461 WO2001081760A1 (en) 2000-04-22 2001-02-07 Method for starting a multi-cylinder internal combustion engine

Publications (2)

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EP1301706A1 true true EP1301706A1 (en) 2003-04-16
EP1301706B1 EP1301706B1 (en) 2006-03-08

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US (1) US6718928B2 (en)
EP (1) EP1301706B1 (en)
JP (1) JP4819281B2 (en)
DE (2) DE10020104A1 (en)
WO (1) WO2001081760A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822196A1 (en) * 2001-03-13 2002-09-20 Bosch Gmbh Robert Starting a direct injection automobile internal combustion multi-cylinder engine without a starter motor, oxygen enriched fuel mixture is ignited as piston reaches top dead center in successive cylinders

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10260748A1 (en) 2002-12-23 2004-07-01 Robert Bosch Gmbh A method of operating an internal combustion engine
EP1464830A1 (en) 2003-03-31 2004-10-06 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Method for controlling an engine before and after engine stillstand
JP4158583B2 (en) * 2003-04-11 2008-10-01 トヨタ自動車株式会社 Starting device for an internal combustion engine
DE10322361A1 (en) * 2003-05-09 2004-11-25 Robert Bosch Gmbh Method of starting motor vehicle internal combustion engine involves filling combustion chamber with charge immediately after ignition for holding during stopped phase
DE10335016B4 (en) * 2003-07-31 2012-11-29 Robert Bosch Gmbh Method for starting a multi-cylinder internal combustion engine
DE10341279B4 (en) * 2003-09-08 2012-10-31 Robert Bosch Gmbh A method for performing a high-pressure start
DE10342703B4 (en) * 2003-09-16 2013-09-26 Robert Bosch Gmbh Method for starting a multi-cylinder internal combustion engine and the internal combustion engine
JP2005127169A (en) * 2003-10-22 2005-05-19 Hitachi Ltd Control method for internal combustion engine
EP1533501B1 (en) * 2003-11-21 2012-06-20 Mazda Motor Corporation "Engine starting system"
US7559309B2 (en) * 2004-03-19 2009-07-14 Ford Global Technologies, Llc Method to start electromechanical valves on an internal combustion engine
US7021289B2 (en) * 2004-03-19 2006-04-04 Ford Global Technology, Llc Reducing engine emissions on an engine with electromechanical valves
US7032581B2 (en) * 2004-03-19 2006-04-25 Ford Global Technologies, Llc Engine air-fuel control for an engine with valves that may be deactivated
US7128687B2 (en) * 2004-03-19 2006-10-31 Ford Global Technologies, Llc Electromechanically actuated valve control for an internal combustion engine
US7140355B2 (en) * 2004-03-19 2006-11-28 Ford Global Technologies, Llc Valve control to reduce modal frequencies that may cause vibration
US7017539B2 (en) * 2004-03-19 2006-03-28 Ford Global Technologies Llc Engine breathing in an engine with mechanical and electromechanical valves
US7063062B2 (en) * 2004-03-19 2006-06-20 Ford Global Technologies, Llc Valve selection for an engine operating in a multi-stroke cylinder mode
US7383820B2 (en) * 2004-03-19 2008-06-10 Ford Global Technologies, Llc Electromechanical valve timing during a start
US7128043B2 (en) 2004-03-19 2006-10-31 Ford Global Technologies, Llc Electromechanically actuated valve control based on a vehicle electrical system
US7194993B2 (en) * 2004-03-19 2007-03-27 Ford Global Technologies, Llc Starting an engine with valves that may be deactivated
US7240663B2 (en) * 2004-03-19 2007-07-10 Ford Global Technologies, Llc Internal combustion engine shut-down for engine having adjustable valves
US7031821B2 (en) * 2004-03-19 2006-04-18 Ford Global Technologies, Llc Electromagnetic valve control in an internal combustion engine with an asymmetric exhaust system design
US7555896B2 (en) * 2004-03-19 2009-07-07 Ford Global Technologies, Llc Cylinder deactivation for an internal combustion engine
US7107946B2 (en) * 2004-03-19 2006-09-19 Ford Global Technologies, Llc Electromechanically actuated valve control for an internal combustion engine
US7072758B2 (en) * 2004-03-19 2006-07-04 Ford Global Technologies, Llc Method of torque control for an engine with valves that may be deactivated
US7028650B2 (en) 2004-03-19 2006-04-18 Ford Global Technologies, Llc Electromechanical valve operating conditions by control method
US7165391B2 (en) * 2004-03-19 2007-01-23 Ford Global Technologies, Llc Method to reduce engine emissions for an engine capable of multi-stroke operation and having a catalyst
US7079935B2 (en) * 2004-03-19 2006-07-18 Ford Global Technologies, Llc Valve control for an engine with electromechanically actuated valves
US7055483B2 (en) * 2004-03-19 2006-06-06 Ford Global Technologies, Llc Quick starting engine with electromechanical valves
US7066121B2 (en) * 2004-03-19 2006-06-27 Ford Global Technologies, Llc Cylinder and valve mode control for an engine with valves that may be deactivated
US7082899B2 (en) * 2004-03-26 2006-08-01 Bose Corporation Controlled starting and braking of an internal combustion engine
JP4345587B2 (en) * 2004-06-21 2009-10-14 トヨタ自動車株式会社 The start of the engine control system for an internal combustion engine
DE102004037129B4 (en) * 2004-07-30 2016-02-11 Robert Bosch Gmbh Apparatus and method for controlling an internal combustion engine at a start
DE102004044814A1 (en) * 2004-09-16 2006-03-23 Robert Bosch Gmbh Combustion process simulating method for internal combustion engine, involves creating simulation model by considering energy and mass balances, and issuing controlling and/or adjustment parameter of engine by inputting input parameter
US7104235B2 (en) * 2004-11-01 2006-09-12 Ford Global Technologies, Llc Starting a camless engine from rest
DE502004008924D1 (en) 2004-11-08 2009-03-12 Ford Global Tech Llc Blocking device for a crankshaft
EP1679438A1 (en) * 2005-01-10 2006-07-12 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Method for starting a combustion engine
JP2006299997A (en) * 2005-04-22 2006-11-02 Toyota Motor Corp Internal combustion engine starting device
US7278388B2 (en) * 2005-05-12 2007-10-09 Ford Global Technologies, Llc Engine starting for engine having adjustable valve operation
EP1728996A1 (en) * 2005-05-31 2006-12-06 Nissan Motor Co., Ltd. Combustion control method and apparatus for a direct injection spark ignition internal combustion engine
US7461621B2 (en) * 2005-09-22 2008-12-09 Mazda Motor Corporation Method of starting spark ignition engine without using starter motor
FR2900447B1 (en) * 2006-04-26 2012-08-24 Valeo Sys Controle Moteur Sas Method for starting an internal combustion engine with simultaneous ignition in the two cylinders
DE602006011483D1 (en) * 2006-11-22 2010-02-11 Ford Global Tech Llc HCCI engine with Quick Restart
EP2232050A4 (en) * 2007-12-11 2013-07-24 Mosaid Technologies Inc Method and apparatus for starting an internal combustion engine
DE102010041504B4 (en) * 2010-09-28 2013-04-25 Robert Bosch Gmbh A method and computer program, electronic storage medium, and control and / or regulating device for controlling an internal combustion engine
CN103649500B (en) * 2012-04-06 2016-03-16 丰田自动车株式会社 Vehicle engine start control device
DE102014213034A1 (en) * 2014-07-04 2016-01-07 Bayerische Motoren Werke Aktiengesellschaft Method for starting an internal combustion engine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3117144A1 (en) 1981-04-30 1982-11-18 Bender Emil Fa Starter device for a multi-cylinder spark-ignition engine
JPS63198779A (en) 1987-02-13 1988-08-17 Shigeru Takeuchi Gasoline engine starting device
JPH0375729B2 (en) * 1987-05-15 1991-12-03 Honda Motor Co Ltd
US5219397A (en) * 1991-04-02 1993-06-15 Globe-Union Inc. Reduced starting load system for an automobile engine
JP3683300B2 (en) * 1995-01-27 2005-08-17 本田技研工業株式会社 Control device for an internal combustion engine
DE19736137C1 (en) * 1997-08-20 1998-10-01 Daimler Benz Ag Starting procedure for IC engine equipped with solenoid- controlled inlet and outlet valves
DE19742969C2 (en) * 1997-09-29 2002-08-14 Siemens Ag Method for starting a multi-cylinder internal combustion engine
DE19743492B4 (en) * 1997-10-01 2014-02-13 Robert Bosch Gmbh Method for starting an internal combustion engine, in particular of a motor vehicle
DE19746119A1 (en) 1997-10-18 1999-04-22 Bosch Gmbh Robert IC engine starting method, especially for motor vehicles
DE19808472A1 (en) * 1998-03-02 1999-09-09 Lsp Innovative Automotive Sys A method of starting a motor vehicle engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0181760A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822196A1 (en) * 2001-03-13 2002-09-20 Bosch Gmbh Robert Starting a direct injection automobile internal combustion multi-cylinder engine without a starter motor, oxygen enriched fuel mixture is ignited as piston reaches top dead center in successive cylinders

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US6718928B2 (en) 2004-04-13 grant
DE10020104A1 (en) 2001-10-31 application
WO2001081760A1 (en) 2001-11-01 application
JP4819281B2 (en) 2011-11-24 grant
JP2003532006A (en) 2003-10-28 application
US20020157630A1 (en) 2002-10-31 application
DE50109155D1 (en) 2006-05-04 grant
EP1301706B1 (en) 2006-03-08 grant

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