EP3359792A1 - Method and device for operating a drive device, and drive device - Google Patents
Method and device for operating a drive device, and drive deviceInfo
- Publication number
- EP3359792A1 EP3359792A1 EP16760059.2A EP16760059A EP3359792A1 EP 3359792 A1 EP3359792 A1 EP 3359792A1 EP 16760059 A EP16760059 A EP 16760059A EP 3359792 A1 EP3359792 A1 EP 3359792A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaust gas
- gas turbocharger
- power
- electric machine
- drive device
- 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.)
- Withdrawn
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
- B60W20/19—Control strategies specially adapted for achieving a particular effect for achieving enhanced acceleration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/004—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust drives arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/013—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/16—Control of the pumps by bypassing charging air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0633—Turbocharger state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0638—Turbocharger state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/43—Engines
- B60Y2400/435—Supercharger or turbochargers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/24—Control of the pumps by using pumps or turbines with adjustable guide vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the invention relates to a method for operating a drive device of a motor vehicle, comprising an internal combustion engine with a first
- Exhaust gas turbocharger and a second exhaust gas turbocharger and at least one electric machine wherein the exhaust gas turbochargers are connected in series, wherein at least the second exhaust gas turbocharger has means for varying its power, wherein the power of at least the second exhaust gas turbocharger in response to a requested desired torque of the
- the invention relates to a device for operating the above
- At least one of the exhaust gas turbochargers usually two exhaust gas turbochargers, each associated with means for influencing the power of the respective exhaust gas turbocharger.
- the means are, for example, electro-pneumatic actuators, actuatable wastegate valves and / or variable flow geometries.
- German Offenlegungsschrift DE 10 2007 012 303 A1 already discloses a method for operating a hybrid drive, which has an internal combustion engine and an electric machine as drive units, in which the electric machine is actuated, a deviation of an actual torque from a setpoint torque compensate.
- the method according to the invention with the features of claim 1 has the advantage that a delay of the torque build-up following a variation of the power of one of the exhaust gas turbochargers is compensated.
- the electric machine is controlled in dependence on the time of the variation in order to compensate for a deviation of an actual torque of the drive device from the desired torque.
- Electric machine is thus driven in response to a change in performance of the exhaust gas turbocharger, so that early on the electric machine is driven to generate a supporting drive torque.
- Exhaust gas turbocharger increased to increase the boost pressure, which leads to a higher torque of the internal combustion engine.
- the exhaust gas turbocharger dimensioned differently, it can also be provided that at
- Exceeding the first limit value is changed from the one exhaust gas turbocharger to the other exhaust gas turbocharger or switched.
- Exhaust gas turbocharger is varied such that the second exhaust gas turbocharger is connected only when the first limit value is exceeded.
- the second exhaust gas turbocharger is thus initially deactivated and does not contribute to the boost pressure control.
- the second exhaust gas turbocharger is associated with a bypass, in which an operable valve, in particular wastegate valve is located. By opening the valve, the exhaust gas flow past the turbine of the exhaust gas turbocharger, so that it is not driven by the exhaust gas.
- the first exhaust gas turbocharger also has means for varying its power, wherein the power of the first
- Exhaust gas turbocharger is varied in response to the requested target torque. Alternatively, it may be provided that the power of the
- Exhaust gas turbocharger alone from the turbine supplied exhaust gas mass flow of the internal combustion engine can be influenced.
- a bypass with a switchable valve is also associated with the first exhaust gas turbocharger, through which the exhaust gas mass flow of the internal combustion engine can be guided past the turbine of the first exhaust gas turbocharger.
- the power of the second exhaust gas turbocharger can be varied by the valve of the associated bypass.
- the current actual speed or the current boost pressure of at least the second exhaust gas turbocharger is detected, and that the timing of the variation in
- a Betuschists the means or the manipulated variable of an actuator for varying the power of at least the second exhaust gas turbocharger monitors and the time for activation of the electric machine or the time of
- Variation is determined depending on the BetuschistsistSh or the actuator position / manipulated variable.
- the BetuschistSh or the actuator position / manipulated variable.
- control of the electric machine is terminated, in particular in response to a hysteresis, when the actual speed and / or the BetreliistsistGra a target speed
- Actuation target state it can be assumed that the second exhaust gas turbocharger has reached its desired performance. Thus, the support of the electric machine can be stopped. Due to the advantageous hysteresis is taken into account that due to the fluid dynamics conditions in the air system of the combustion engine, the charge pressure increases delayed to the increase in output of the exhaust gas turbocharger.
- Hysteresis circuit is thus ensured that the support by the electric machine is not terminated prematurely.
- the electric machine is advantageously controlled in response to a requested gear change.
- a short-term traction interruption during a switching operation can be compensated.
- the total torque provided by the drive device can be maintained even during a shift, which among other things, the change to the next transmission ratio improved and downshifts are avoided.
- the change to the next transmission ratio improved and downshifts are avoided.
- Electric machine can be compensated, prevented the downshift and instead controlled the electric machine accordingly.
- the required additional power or the required torque of the electric machine determined to the
- the device according to the invention with the features of claim 9 is characterized by a specially prepared control unit, the
- inventive method performs under normal use. This results in the already mentioned advantages.
- the drive device according to the invention with the features of claim 10 is characterized by the device according to the invention. This results in the already mentioned advantages.
- Figure 2 shows a method for operating the drive device
- FIG. 3 shows a further method for operating the drive device.
- FIG. 1 shows a simplified representation of a drive device 1 of a motor vehicle not shown here.
- the drive device 1 has an internal combustion engine 2, which is designed as a tension piston engine.
- Internal combustion engine 2 is connected to an electric machine 3.
- a rotor of the electric machine 3 is arranged rotationally fixed directly on the crankshaft 2 or the output shaft of the internal combustion engine 2.
- Electric machine 3 is in turn connected to a transmission 4, which connects the drive device 1 with drive wheels of the motor vehicle.
- the Transmission 4 has in particular several gear ratios, between which can be changed.
- the internal combustion engine 2 is associated with two exhaust gas turbochargers 5 and 6, which are connected in series with each other. Both exhaust-gas turbochargers 5, 6 each have a turbine T 5 , T 6 and a compressor V 5 and V 6 connected to the turbine.
- the exhaust gas turbochargers 5 and 6 are connected in series with each other, so that exhaust gas coming from the engine 2 is first supplied to the turbine T 6 of the exhaust gas turbocharger 6 and then to the turbine T 5 of the exhaust gas turbocharger 5. Accordingly, fresh air is first supplied to the compressor V 5 of the exhaust gas turbocharger 5 and then to the compressor V 6 of the exhaust gas turbocharger 6, so that the fresh air is compressed by the compressor V 5 and then the compressor V 6 and only then the internal combustion engine 2 is supplied.
- the turbines T 5 and T 6 are each assigned a bypass B 5 or B 6 , each having a switchable wastegate valve W 5 or W 6 , by means of which a flow cross section of the respective bypass B 5 , B 6 , is adjustable. If the respective bypass B 5 , B 6 is completely closed by the respective wastegate valve W 5 , W 6 , then the exhaust gas or the exhaust gas mass flow of the internal combustion engine 2 is completely guided by the turbines T 6 and T 5 to the two exhaust gas turbochargers T 5 and T 6 drive.
- the compressor V 6 another bypass BV 6 is associated with another valve WV 6 , through which the compressor V 6 supplied fresh air flow is adjustable.
- the wastegate valves W 5, W 6 and WV 6 represent, in particular, means for varying the power of the respective exhaust-gas turbocharger 5, 6. By actuating the waste -gate valves W 5 and W 6, it is possible, for example during operation of the
- Drive device 1 is a switching from a 2-stage operation, in which both exhaust gas turbochargers 5, 6 are operated, to a single-stage operation, in which only one of the exhaust gas turbocharger 5 or 6 is operated, are switched. In such a switch there is a delayed boost pressure buildup of the internal combustion engine 2 due to fluid dynamic conditions in the air duct system. As a result, the actual torque of the drive device 1 follows a delayed predetermined by a driver or requested by a driver target torque of the drive device. 1
- the electric machine is driven to a
- the power of the exhaust gas turbocharger 6 is varied by the control of the bypass. It is provided that the wastegate valve W 6 , as well as the other Wastegate- valves, a particular electric-pneumatic actuator is assigned, which moves the respective valve accordingly or operated. The actuator is driven in particular with a predeterminable duty cycle, in dependence of which a specifiable position of the respective valve results.
- the duty cycle is monitored continuously, in response to the actuating position of the actuator, the performance of
- Combustion engine 2 not immediately representable share of the torque increase to compensate.
- the electric machine 3 is taken so early in operation that for the driver or occupant of a drive device 1 having motor vehicle, a uniform torque increase and in particular, no interruption of traction is noticeable.
- the time of switching is advantageously set such that the
- Additional torque of the electric machine 3 acts vorumblend and thereby a speed drop is avoided.
- This can be implemented for example by a control logic of the control unit 7 as a function of the determined time of
- FIG. 2 shows in a simplified representation a method for operating the drive device 1, in which the time of the changeover to
- a step 8 the actuator of the wastegate valve 6 is driven to set a target duty ratio (E PWsoii). From the actuator's characteristic results in dependence on the electric current, a desired duty cycle from which an actual duty cycle TV or an actual position of the wastegate valve 6 results. As a result, the duty cycle TV of the actuator and, as a result, the time T are determined at which a variation of the power of the exhaust gas turbocharger 6 takes place. Depending on this duty cycle TV or time, the electric machine 3 is driven, wherein a release hysteresis in the following step 9 is used to control the electric machine 3.
- a target duty ratio E PWsoii
- Traction interruption of the transmission 4 is bridged during the switching operation.
- the torque of the drive device 1 can also be kept at a higher level during the switching process, which improves the connection of the next gear ratio and Avoid downshifts.
- the advantage in an additional torque assistance by the electric machine 3 as a function of a gear change, is the avoidance of traction loss and the avoidance of a downshift, since a higher gear can be used longer by the electric auxiliary drive.
- FIG. 3 shows, for example, the additional power P to be provided by the electric machine 3 or the additional torque to be made available as a function of different gear changes G between the gears 1, 2, 3, 4 and 5 of the transmission 4.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Supercharger (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015219337.3A DE102015219337A1 (en) | 2015-10-07 | 2015-10-07 | Method and device for operating a drive device, drive device |
PCT/EP2016/070577 WO2017060009A1 (en) | 2015-10-07 | 2016-09-01 | Method and device for operating a drive device, and drive device |
Publications (1)
Publication Number | Publication Date |
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EP3359792A1 true EP3359792A1 (en) | 2018-08-15 |
Family
ID=56853629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16760059.2A Withdrawn EP3359792A1 (en) | 2015-10-07 | 2016-09-01 | Method and device for operating a drive device, and drive device |
Country Status (6)
Country | Link |
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US (1) | US20180297582A1 (en) |
EP (1) | EP3359792A1 (en) |
KR (1) | KR20180059932A (en) |
CN (1) | CN108138671A (en) |
DE (1) | DE102015219337A1 (en) |
WO (1) | WO2017060009A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016011305B3 (en) * | 2016-09-19 | 2018-02-15 | Mtu Friedrichshafen Gmbh | Control method for a supercharged internal combustion engine |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2640757B2 (en) * | 1988-07-18 | 1997-08-13 | 株式会社いすゞセラミックス研究所 | Control device for turbocharger |
DE10159801A1 (en) * | 2001-12-05 | 2003-04-10 | Audi Ag | Internal combustion engine has additional compressor stage in series or parallel with charger and not driven by exhaust gas flow but with mechanically or electrically driven charger |
US6938420B2 (en) * | 2002-08-20 | 2005-09-06 | Nissan Motor Co., Ltd. | Supercharger for internal combustion engine |
DE10251428A1 (en) * | 2002-11-01 | 2004-05-19 | Spicer Off-Highway Belgium N.V. | Method and system for adapting an automatic clutch |
WO2005085612A1 (en) * | 2004-03-08 | 2005-09-15 | Toyota Jidosha Kabushiki Kaisha | Control device for internal combustion engine with electrically driven supercharger |
DE102005055001A1 (en) * | 2005-11-18 | 2007-05-24 | Bayerische Motoren Werke Ag | Method for determining a drive torque correction factor for the adjustment of cooperating drive torques of various drive devices |
DE102007012303B4 (en) | 2007-03-14 | 2016-10-13 | Robert Bosch Gmbh | Method for operating a hybrid drive of a vehicle |
DE102009047054A1 (en) * | 2009-11-24 | 2011-05-26 | Robert Bosch Gmbh | Multistage turbocharger for use in internal-combustion engine, has adjusting element adjusting quantity of exhaust gas flowing through bypass, where adjusting element is operatively connected with actuators by common effect connection |
DE102012009288A1 (en) * | 2011-05-19 | 2012-11-22 | Volkswagen Aktiengesellschaft | Internal combustion engine for passenger car, has electrically operated compressor and exhaust gas turbocharger which is provided with various shaped turbines |
DE102011122442A1 (en) * | 2011-12-24 | 2013-06-27 | Volkswagen Aktiengesellschaft | Method for operating an internal combustion engine |
DE102012201111A1 (en) * | 2012-01-26 | 2013-08-01 | Zf Friedrichshafen Ag | Hybrid drive operating method for use in motor vehicle, involves providing turbocharger, performing boost pressure reduction, and providing set of compressors for turbocharger that is partially compensated |
DE102012010868A1 (en) * | 2012-05-31 | 2013-12-05 | Avl Deutschland Gmbh | Method and device for monitoring an actuator device |
GB2504953B (en) * | 2012-08-14 | 2017-07-12 | Ford Global Tech Llc | An engine system and a method of controlling an engine system |
DE102013008741B3 (en) * | 2013-05-23 | 2014-10-30 | Audi Ag | Hydraulic system for a dual-clutch transmission of a motor vehicle |
US9309803B2 (en) * | 2013-12-05 | 2016-04-12 | GM Global Technology Operations LLC | Turbocharger compressor temperature control systems and methods |
-
2015
- 2015-10-07 DE DE102015219337.3A patent/DE102015219337A1/en not_active Withdrawn
-
2016
- 2016-09-01 CN CN201680058512.0A patent/CN108138671A/en active Pending
- 2016-09-01 US US15/766,442 patent/US20180297582A1/en not_active Abandoned
- 2016-09-01 KR KR1020187012645A patent/KR20180059932A/en unknown
- 2016-09-01 WO PCT/EP2016/070577 patent/WO2017060009A1/en active Application Filing
- 2016-09-01 EP EP16760059.2A patent/EP3359792A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
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KR20180059932A (en) | 2018-06-05 |
CN108138671A (en) | 2018-06-08 |
WO2017060009A1 (en) | 2017-04-13 |
US20180297582A1 (en) | 2018-10-18 |
DE102015219337A1 (en) | 2017-04-13 |
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