DE102009016522A1 - Exhaust gas turbocharger arrangement with integrated exhaust flap, thus equipped drive system and method for operating such a drive system - Google Patents

Abstract

Exhaust gas turbocharger assembly, equipped therewith drive system and method of operating such a drive system, the exhaust gas turbocharger assembly comprising: an exhaust gas turbocharger having an exhaust turbine with a turbine inlet and a turbine outlet and a compressor with a compressor inlet and a compressor outlet, wherein the turbine inlet with a Exhaust gas output and the compressor output to be brought into fluid communication with an air inlet of the internal combustion engine, first control means for controlling a drive parameter of the exhaust gas turbine, an exhaust gas recirculation device with an input which is fluidly connected to the turbine inlet, and an output which is fluidly connected to the compressor output, and a controller connected to the first control means and the exhaust gas recirculation means and configured to drive the first control means based on an operating state of the exhaust gas recirculation means. The control device comprises an integrated blow-off flap.

Description

The The invention relates to an exhaust gas turbocharger arrangement for a Internal combustion engine, one with such an exhaust gas turbocharger arrangement equipped drive system and a method of operation such a drive system.

Out the press article "VTA Turbocharger" of MAN Diesel SE from 18.04.2007 it is known exhaust gas turbines of exhaust gas turbochargers form with variably adjustable turbine geometry.

Out DE 43 16 202 A1 It is known to form compressors of exhaust gas turbochargers with variably adjustable compressor geometry.

Out DE 196 28 852 A1 It is known to provide internal combustion engines with an exhaust gas recirculation device. However, the operation of such Abgasrezirkulationseinrichtung can significantly affect the operation of the engine in an uncontrolled manner, such. B. significantly increase the fuel consumption of the engine and significantly reduce the drive power of the engine.

Of the Invention is based on the object, an exhaust gas turbocharger arrangement to provide an always optimal operation of a the exhaust gas turbocharger arrangement equipped internal combustion engine can guarantee. The invention is also the task basis, equipped with such an exhaust gas turbocharger arrangement Drive system and a method for operating such a drive system provide.

The The above objects are achieved with an exhaust gas turbocharger arrangement according to claim 1, with an integrated Abblaseklappe according to claim 12, with a drive system according to claim 13 or a method according to claim 14 solved. Further developments of the invention are in the dependent claims Are defined.

According to one The first aspect of the invention is an exhaust gas turbocharger arrangement provided for an internal combustion engine, wherein the exhaust gas turbocharger arrangement comprising: an exhaust gas turbocharger having an exhaust gas turbine with a Turbine input and a turbine output and a compressor with a compressor inlet and a compressor outlet, wherein the turbine inlet with an exhaust gas outlet of the internal combustion engine to bring in fluid communication for Drehantreiben the exhaust gas turbine, wherein the compressor output with an air inlet of the internal combustion engine To bring in fluid communication is for feeding of compressed Air to the internal combustion engine, first control means for controlling at least a drive parameter of the exhaust gas turbine, an exhaust gas recirculation device with an inlet fluidly connected to the turbine inlet, and an output fluidly connected to the compressor output, and a control device connected to the first control means and the exhaust gas recirculation device is connected, for driving the first control means and the exhaust gas recirculation means, wherein the control device is set up, the first control means based on an operating condition of the exhaust gas recirculation device to control.

With the solution according to the invention for An exhaust gas turbocharger arrangement can always be an optimal operation one equipped with such an exhaust gas turbocharger arrangement Internal combustion engine can be ensured. This will be particular achieved in that the control device with the exhaust gas recirculation device and the first control means, so that the first control means based on the operating state of the exhaust gas recirculation device can be controlled.

These Connection can z. B. by hardware and / or software-based coupling of the control device with the exhaust gas recirculation device and the first control means be realized, so that a logical and control technology (such as regulatory technical) dependence of the operation the first control means and thus the operation of the exhaust gas turbine achieved from the operating state of the exhaust gas recirculation device becomes.

In order to may be from the control device in an inoperative state the exhaust gas recirculation device optimized for this non-operating state Control regime can be used for the exhaust gas turbine, which z. B. in the inoperative state higher exhaust gas flow from one to be equipped with the exhaust gas turbocharger assembly Internal combustion engine to the exhaust gas turbine considered.

on the other hand can from the control device at a start-up state of the exhaust gas recirculation device a control regime optimized for this commissioning state be used for the exhaust gas turbine, which z. B. the in commissioning lower exhaust gas flow from one with the exhaust gas turbocharger assembly considered to be equipped internal combustion engine to the exhaust turbine.

Further it is with the solution according to the invention also possible, the control regime of the control device to adjust a degree of exhaust gas recirculation, so that the tax regime fluent or analog or even step by step from the optimization for the inoperative state of the exhaust gas recirculation device to the optimization for the commissioning state of the exhaust gas recirculation device and vice versa can pass.

Prefers the control device is set up to be the first Control means and thus the operation of the exhaust gas turbine in addition controls based on an operating condition of the internal combustion engine. That is, the control regime of the control device becomes additional influenced by the operating condition of the internal combustion engine, wherein z. As the engine load, the operating temperature, the engine speed, etc. can be included.

In order to can always be an optimal operation with an inventive Exhaust gas turbocharger arrangement equipped internal combustion engine be guaranteed.

According to one Embodiment of the invention Exhaust gas turbocharger arrangement has the exhaust gas recirculation device an exhaust gas purification device.

With this embodiment of the invention, the exhaust gas recirculation device z. In restriction zones (such as ship harbors) with legally prescribed reduced pollutant load turned on or put into the commissioning state to the pollutant emissions of a Reduce internal combustion engine to the required parameters, which the applicability of a with the invention Exhaust gas turbocharger arrangement equipped internal combustion engine or one equipped with such an internal combustion engine Machine, such as B. a ship to be significantly improved can.

on the other hand The exhaust gas recirculation facility can operate in unlimited zones (such as on the open sea), where no more stringent specifications for a reduction of pollutant emissions Internal combustion engine exist, be turned off or in the Be put out of order to stop the operation of the Internal combustion engine z. B. in terms of maximum power or minimum Optimize fuel consumption of the internal combustion engine.

According to one another embodiment of the invention Exhaust gas turbocharger arrangement, the first control means a variable adjustable turbine geometry for the exhaust gas turbine on.

With This embodiment of the invention can the exhaust gas turbine effectively and control technology safely to a changed exhaust gas flow (eg pressure and / or quantity), so that the at least a drive parameter of the exhaust gas turbine, z. B. over a Adjustment of guide vanes of the exhaust gas turbine, depending from the exhaust gas flow or depending on the operating state of Exhaust gas recirculation device and / or from the operating state the internal combustion engine is controlled. The at least one drive parameter of Exhaust gas turbine can z. B. from a drive speed and / or z. B. be formed by a driving torque of the exhaust gas turbine.

According to a further embodiment of the invention Exhaust gas turbocharger arrangement, the first control means a Umblaseklappe on to the controlled diverting a certain amount of exhaust gas.

With this embodiment of the invention may additionally or Alternatively, to change the turbine geometry of the exhaust stream into and / or out of the exhaust gas turbine are influenced to the to control at least one drive parameter of the exhaust gas turbine or to change.

According to a further embodiment of the invention Exhaust gas turbocharger arrangement further has this second control means for controlling at least one air supply parameter of the Compressor, wherein the control device with the second control means is connected to drive the second control means, and wherein the control device is set up, the first control means and the second control means in response to the operating condition control the exhaust gas recirculation device.

With This embodiment of the invention can be even more variable and increases operationally reliable way a constantly optimal operation one equipped with such an exhaust gas turbocharger arrangement Internal combustion engine can be ensured. This will be particular achieved in that the control device with the exhaust gas recirculation device and the first control means and the second control means is, so that the first control means and the second control means based on the operating state of the exhaust gas recirculation device can be controlled.

These Connection can z. B. by hardware and / or software-based coupling of the control device with the exhaust gas recirculation device and the first and the second Be implemented control means, so that a logical and control technology (such as regulatory technical) dependence of the operation the first and the second control means and thus the operation of the Exhaust gas turbine and the operation of the compressor from the operating condition the exhaust gas recirculation device is achieved.

This can be used by the control device in the inoperative state of the exhaust gas recirculation device optimized for this non-operating state control regime for the exhaust turbine and / or the compressor, which z. B. the outside erbetriebszustand higher exhaust gas flow from a to be equipped with the exhaust gas turbocharger assembly internal combustion engine to the exhaust turbine and / or z. B. takes into account the non-existing in the off-state exhaust gas flow to the air inlet of the engine.

on the other hand can by the control device in the start-up state of the exhaust gas recirculation device a control regime optimized for this commissioning state used for the exhaust gas turbine and / or the compressor be, which z. B. the lower in the commissioning state exhaust gas from an internal combustion engine to be equipped with the exhaust gas turbocharger arrangement to the exhaust gas turbine and / or z. B. existing in the commissioning state Considered exhaust gas flow to the air inlet of the internal combustion engine.

Further it is with the solution according to the invention also possible, the control regime of the control device to adjust a degree of exhaust gas recirculation, so that the tax regime fluent or analog or even step by step from the optimization for the inoperative state of the exhaust gas recirculation device to the optimization for the commissioning state of the exhaust gas recirculation device and vice versa can pass.

Prefers the control device is set up to be the first and the second control means and thus the operation of the exhaust gas turbine and / or of the compressor additionally based on the operating condition of the internal combustion engine controls. That is, the control regime of the control device in addition to the operating condition of the internal combustion engine influenced, wherein z. B. the engine load, the operating temperature, the engine speed, etc. can be included.

In order to can always be more reliable and variable optimal operation of one with an inventive Exhaust gas turbocharger arrangement equipped internal combustion engine be guaranteed.

According to one another embodiment of the invention Exhaust gas turbocharger arrangement, the second control means a variable adjustable compressor geometry for the compressor.

With This embodiment of the invention can also be effective for the compressor and control technology safely to a changed exhaust gas flow (eg, pressure and / or amount) to the exhaust turbine and any existing Exhaust gas flow to be adapted to the air inlet of the internal combustion engine, in that the at least one air feed parameter of the compressor, z. B. by adjusting guide vanes of the compressor, depending controlled by the operating state of the exhaust gas recirculation device becomes.

Of the at least one air supply parameter of the compressor can z. B. on the size and / or pressure of a flow on fresh air to the compressor inlet and / or z. B. of the size and / or the pressure of a volumetric flow of compressed air at the compressor outlet be formed.

According to an embodiment of the invention Exhaust gas turbocharger arrangement, the second control means a variably adjustable Vorleitapparat for the compressor on.

With this embodiment of the invention, the compressor geometry be influenced at the compressor input to the at least one To control or change the air supply parameters of the compressor.

According to a further embodiment of the invention Exhaust gas turbocharger arrangement, the second control means a variably adjustable Nachleitapparat for the compressor on.

With this embodiment of the invention, the compressor geometry be influenced at the compressor output to the at least one To control or change the air supply parameters of the compressor.

According to a further embodiment of the invention Exhaust gas turbocharger arrangement, the second control means have a Abblaseklappe on to controlled blowing off a certain amount of compressed Air.

With this embodiment of the invention may additionally or alternatively, to alter the compressor geometry, the airflow (Amount and / or pressure) at the compressor outlet to the at least one air supply parameter of the compressor to control or change.

there For example, the blow-off flap may preferably be located inside the exhaust-gas turbocharger be integrated. The compacted by the compressor and heated Air can be fed directly to the fresh air mass flow. As a result, the average temperature of the fresh air is raised. hereby a preheating of the fresh air mass flow can be omitted. Due to the integrated design can be a costly piping or Isolation outside the compressor housing accounts.

The blow-off and compressed air volume can be reduced or better controlled by the integrated blow-off flap. Furthermore, the on reduced overhead costs for piping and insulation. Another particular advantage is that the previously used preheating, which heat the air supplied to the compressor, can be omitted.

According to an embodiment of the invention Exhaust gas turbocharger arrangement, the second control means, a throttle for controlling an amount that can be supplied to the compressor in air.

With this embodiment of the invention may additionally or alternatively to changing the compressor geometry and / or the air flow at the compressor outlet the air flow (quantity and / or pressure) be influenced at the compressor input to the at least one To control or supply the air supply parameters of the compressor change.

By Use of one, several or all of the aforementioned embodiments the exhaust gas turbocharger arrangement according to the invention in every conceivable combination for an internal combustion engine is a very flexible and secure optimized Operation of an internal combustion engine possible.

According to one second aspect of the invention is a drive system with an exhaust gas turbocharger assembly according to one, several or any of those previously described Embodiments of the invention in every conceivable combination and one with the turbocharger arrangement connected internal combustion engine, wherein the control device is set up, at least one drive parameter of the exhaust gas turbine and / or at least one air supply parameter of the compressor Basis of the operating state of the exhaust gas recirculation device and on the basis of an operating condition of the internal combustion engine Taxes.

As already mentioned above, the one, several or All the aforementioned embodiments of the invention Exhaust gas turbocharger arrangement equipped in every conceivable combination Internal combustion engine extremely flexible and safe Optimally operable.

According to one Third aspect of the invention is a method for operating a provided drive system according to the invention, the method comprising: determining an operating condition the exhaust gas recirculation device, determining an operating condition the internal combustion engine and controlling at least one drive parameter the exhaust gas turbine and / or at least one Luftzuführparameters the compressor based on the operating state of the exhaust gas recirculation device and the operating state of the internal combustion engine.

In the following, the invention will be described with reference to preferred embodiments and with reference to the attached 1 and 2 described in more detail.

1 shows a schematic view of a drive system according to embodiments of the invention;

2 shows a schematic view of a compressor housing with integrated Ablasseklappe.

1 shows a schematic view of a drive system 1 according to embodiments of the invention.

The drive system 1 has an exhaust gas turbocharger arrangement 10 and a z. B. as a diesel engine and / or z. B. gas engine trained and with the exhaust gas turbocharger arrangement 10 connected internal combustion engine 10 on.

The turbocharger arrangement 10 has an exhaust gas turbocharger 100 , first control means 200 second control means 300 , an exhaust gas recirculation device 400 and a control device 500 on.

The turbocharger 100 has an exhaust gas turbine 110 with a turbine inlet 111 and a turbine outlet 112 and one via a connecting shaft 130 with the exhaust gas turbine 110 rotary drive connected compressor 120 with a compressor inlet 121 and a compressor outlet 122 on.

The turbine entrance 111 stands over an exhaust pipe 21 with an exhaust outlet 20a of the internal combustion engine 20 in fluid communication, so that the exhaust gas turbine 110 about the energy of the exhaust gas of the internal combustion engine 20 can be rotated. The turbine output 112 stands with an outlet pipe 113 in fluid communication, so that from the exhaust gas turbine 110 exiting exhaust gas z. B. is derivable into the atmosphere.

The compressor inlet 121 stands with a fresh air line 123 in fluid communication, allowing the compressor 120 over the fresh air line 123 Fresh air z. B. from the atmosphere can be supplied. The compressor output 122 is via an air supply line 22 with an air inlet 20e of the internal combustion engine 20 in fluid communication, allowing the internal combustion engine 20 over the supply air line 22 from the compressor 120 compressed air can be supplied.

The outlet pipe 113 and the fresh air line 123 stand over one in 1 double-ended connection 202 in controllable fluid connection.

The exhaust gas recirculation device 400 is with an emission control device 401 provided and has an entrance 400e that with the exhaust pipe 21 and thus with the turbine inlet 111 and the exhaust outlet 20a fluidly connected, and an output 400a on, with the supply air line 22 and thus with the compressor output 122 and the air inlet 20e fluidly connected.

The first control means 200 are arranged to control at least one drive parameter, such. B. a speed and / or a drive torque, the exhaust gas turbine 110 , According to one embodiment of the invention, the first control means 200 a variably adjustable turbine geometry, such. B. adjustable vanes (not shown), for the exhaust gas turbine 110 on.

According to a further embodiment of the invention, the first control means 200 additionally or alternatively a Umblaseklappe 201 to controllably divert a certain amount of exhaust gas or a certain amount of air, such as by the in 1 Double-headed version of the connecting cable 202 indicated.

The second control means 300 are arranged to control at least one air supply parameter, such. B. the size and / or pressure of a volume flow of fresh air to the compressor inlet 121 towards and / or z. As the size and / or pressure of a volume flow of compressed air at the compressor outlet 122 , the compressor 120 , According to one embodiment of the invention, the second control means 300 a variably adjustable compressor geometry for the compressor 120 on. Preferably, the second control means 300 a variably adjustable Vorleitapparat 120a for the compressor 120 and / or a variably adjustable Nachleitapparat 120b for the compressor 120 on.

According to a further embodiment of the invention, the second control means additionally or alternatively a Abblaseklappe 301 on for the controlled blowing off of a certain amount of compressed air. According to yet another embodiment of the invention, the second control means 300 additionally or alternatively a throttle 302 to control a compressor 120 deliverable amount of fresh air.

In relation to 1 is to mention that in 1 all components of the first control means listed in the above 200 and the second control means 300 are shown in combination. It will be understood by those skilled in the art that, although not shown, embodiments of the invention may omit one or the other of these or more of these components.

The control device 500 is not shown signal lines with respective actuators (not shown) of the first control means 200 with respective actuators (not shown) of the second control means 300 and with respective actuators (not shown) of the exhaust gas recirculation device 400 connected to drive the first control means 200 , the second control means 300 and the exhaust gas recirculation device 400 ,

The control device 500 is set up, the first control means 200 and the second control means 300 depending on an operating condition or on the basis of an operating condition, such. B. an inoperative state or a commissioning state, the exhaust gas recirculation device 400 to control.

For this purpose, the control device has 500 via suitable software, hardware or a combination thereof.

The control device 500 is in particular arranged, the at least one drive parameter of the exhaust gas turbine 110 and / or the at least one air supply parameter of the compressor 120 based on the operating state of the exhaust gas recirculation device 400 and based on an operating condition, such. As the engine load, the engine speed, etc., of the engine 20 to control. For this purpose, in a memory (not shown) of the control device 500 z. B. desired engine characteristics for the internal combustion engine 20 be deposited.

In a most general form of a method of operating the drive system 1 At least the following steps are carried out: by means not shown and with the control device 500 signal-coupled sensors determining the operating state of the exhaust gas recirculation device 400 (switched on, including the respective intensity or the degree of exhaust gas recirculation, or off), by means not shown and with the control device 500 signal-coupled sensors determining the operating condition of the internal combustion engine (engine load and / or engine speed and / or fuel consumption and / or operating temperature, etc.) and with the control device 500 Controlling the at least one drive parameter of the exhaust gas turbine 110 and / or the at least one air supply parameter of the compressor 120 about the first control means 200 and / or the second control means 300 and based on the operating state of the exhaust gas recirculation device 400 and the operating state of the internal combustion engine 20 so that the internal combustion engine 20 for a respective operating case (operation with or without exhaust gas recirculation) in an optimal power range and / or optimum fuel consumption range and / or optimal Pollutant emissions range is operated.

2 shows a schematic view of a compressor housing with integrated Ablasseklappe. The ambient air is supplied via the fresh air line 123 the compressor 120 supplied and compressed there. The compressed air is in the spiral housing 700 collected and forwarded to the intercooler (not shown). A portion, approximately up to 25%, of the total air mass flow is fed back into the exhaust gas turbocharger as preheated air.

1

drive system

10

Turbocharger arrangement

20

internal combustion engine

20a

exhaust outlet

20e

air inlet

21

exhaust pipe

22

air supply

100

turbocharger

110

exhaust turbine

111

turbine inlet

112

turbine output

113

outlet pipe

120

compressor

120a

Vorleitapparat

120b

guide vane

121

compressor inlet

122

compressor output

123

Fresh air line

130

connecting shaft

200

first control means

201

Umblaseklappe

202

connecting line

300

second control means

301

Abblaseklappe

302

throttle

400

Exhaust gas recirculation device

400a

output

400e

entrance

401

Exhaust-gas purifying device

500

control device

600

turbocharger housing

700

volute

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 4316202 A1 [0003]
• - DE 19628852 A1 [0004]

Claims (15)

Exhaust gas turbocharger arrangement ( 10 ) for an internal combustion engine ( 20 ), comprising: an exhaust gas turbocharger ( 100 ), which has an exhaust gas turbine ( 110 ) with a turbine inlet ( 111 ) and a turbine outlet ( 112 ) and a compressor ( 120 ) with a compressor inlet ( 121 ) and a compressor outlet ( 122 ), wherein the turbine inlet ( 111 ) with an exhaust outlet ( 20a ) of the internal combustion engine ( 20 ) in fluid communication is for Drehantreiben the exhaust gas turbine ( 110 ), the compressor output ( 122 ) with an air inlet ( 20e ) of the internal combustion engine ( 20 ) is in fluid communication for supplying compressed air to the internal combustion engine ( 20 ), first control means ( 200 ) for controlling at least one drive parameter of the exhaust gas turbine ( 110 ), an exhaust gas recirculation device ( 400 ) with an input ( 400e ) connected to the turbine inlet ( 111 ) is fluidly connected, and an output ( 400a ) connected to the compressor outlet ( 122 ) is fluidly connected, and a control device ( 500 ), with the first means of taxation ( 200 ) and the exhaust gas recirculation device ( 400 ), for driving the first control means ( 200 ) and the exhaust gas recirculation device ( 400 ), wherein the control device ( 500 ), the first control means ( 200 ) based on an operating state of the exhaust gas recirculation device ( 400 ) to control. Exhaust gas turbocharger arrangement ( 10 ) according to claim 1, wherein the exhaust gas recirculation device ( 400 ) an exhaust gas purification device ( 401 ) having. Exhaust gas turbocharger arrangement ( 10 ) according to claim 1 or 2, wherein the first control means ( 200 ) a variably adjustable turbine geometry for the exhaust gas turbine ( 110 ) exhibit. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 1 to 3, wherein the first control means ( 200 ) a Umblaseklappe ( 201 ) for controlled diversion of a certain amount of exhaust gas. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 1 to 4, further comprising second control means ( 300 ) for controlling at least one air supply parameter of the compressor ( 120 ), wherein the control device ( 500 ) with the second control means ( 300 ) is connected for driving the second control means ( 300 ), and wherein the control device ( 500 ), the first control means ( 200 ) and the second control means ( 300 ) based on the operating state of the exhaust gas recirculation device ( 400 ) to control. Exhaust gas turbocharger arrangement ( 10 ) according to claim 5, wherein the second control means ( 300 ) a variably adjustable compressor geometry for the compressor ( 120 ) exhibit. Exhaust gas turbocharger arrangement ( 10 ) according to claim 5 or 6, wherein the second control means ( 300 ) a variably adjustable Vorleitapparat ( 120a ) for the compressor ( 120 ) exhibit. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 5 to 7, wherein the second control means ( 300 ) a variably adjustable Nachleitapparat ( 120b ) for the compressor ( 120 ) exhibit. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 5 to 8, wherein the second control means ( 300 ) a blow-off flap ( 301 ) for the controlled blowing off of a certain amount of compressed air. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 5 to 9, wherein the blow-off flap ( 301 ) in the interior of the exhaust gas turbocharger ( 100 ) is integrated. Exhaust gas turbocharger arrangement ( 10 ) according to one of claims 5 to 10, wherein the second control means ( 300 ) a throttle ( 302 ) for controlling a compressor ( 120 ) deliverable amount of air. Blow-off flap ( 301 ) of an exhaust gas turbocharger ( 100 ), characterized in that the blow-off flap ( 301 ) in the interior of the exhaust gas turbocharger ( 100 ) and a piping for supplying the compressed air to the fresh air mass flow only within the housing ( 700 ) of the compressor ( 120 ) is arranged. Drive system ( 1 ) with an exhaust gas turbocharger arrangement ( 10 ) according to one of claims 1 to 11 and one with the exhaust gas turbocharger arrangement ( 10 ) connected internal combustion engine ( 20 ), wherein the control device ( 500 ) is set up, at least one drive parameter of the exhaust gas turbine ( 110 ) and / or at least one air supply parameter of the compressor ( 120 ) based on the operating state of the exhaust gas recirculation device ( 400 ) and based on an operating state of the internal combustion engine ( 20 ) to control. Method for operating a drive system ( 1 ) according to claim 13, comprising: determining the operating state of the exhaust gas recirculation device ( 400 ), Determining the operating state of the internal combustion engine ( 20 ), and Controlling at least one drive parameter of the exhaust gas turbine ( 110 ) and / or at least one air supply parameter of the compressor ( 120 ) based on the operating state of the exhaust gas recirculation device ( 400 ) and the operating state of the internal combustion engine ( 20 ). Method for operating a drive system ( 1 ) according to claim 12, comprising: determining the operating state of the exhaust gas recirculation device ( 400 ), Determining the operating state of the internal combustion engine ( 20 ), and controlling at least one drive parameter of the exhaust gas turbine ( 110 ) and / or at least one air supply parameter of the compressor ( 120 ) based on the operating state of the exhaust gas recirculation device ( 400 ) and the operating state of the internal combustion engine ( 20 ), wherein after compression of the air in the exhaust gas turbocharger ( 100 ) via an integrated blow-off flap ( 301 ) hot air directly to the fresh air mass flow of the exhaust gas turbocharger ( 100 ) is supplied.