CN106014655B - For controlling the method and control device of the auxiliary compressor of driving device - Google Patents

For controlling the method and control device of the auxiliary compressor of driving device Download PDF

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Publication number
CN106014655B
CN106014655B CN201610172110.5A CN201610172110A CN106014655B CN 106014655 B CN106014655 B CN 106014655B CN 201610172110 A CN201610172110 A CN 201610172110A CN 106014655 B CN106014655 B CN 106014655B
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China
Prior art keywords
torque
auxiliary compressor
combustion engine
internal combustion
auxiliary
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CN201610172110.5A
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Chinese (zh)
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CN106014655A (en
Inventor
D.普罗查斯卡
M.克拉威特
M.齐尔默
M.富格尔
B.贝克尔
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Volkswagen AG
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Volkswagen AG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D23/00—Controlling engines characterised by their being supercharged
    • 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
    • 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
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/10—Introducing corrections for particular operating conditions for acceleration
    • 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
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • 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
    • 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
    • F02D2250/26—Control of the engine output torque by applying a torque limit
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

The present invention relates to a kind of methods for controlling the auxiliary compressor of driving device, driving device includes internal combustion engine, compression assembly and auxiliary compressor, wherein compression assembly is designed to generate basic boost pressure, and auxiliary compressor is designed to generate additional mechanical supercharging pressure.Method includes: acquisition nominal torque, the variable for characterizing basic torque is obtained according to nominal torque, wherein internal combustion engine generates basic torque in response to basic boost pressure, determine whether basic torque is less than nominal torque according to the variable for characterizing basic torque, when basic torque is less than nominal torque, the variable of characterization auxiliary torque is obtained according to nominal torque and the variable for characterizing basic torque, wherein internal combustion engine generates auxiliary torque in response to additional mechanical supercharging pressure, with when basic torque be less than nominal torque when, the auxiliary compressor is controlled in this way according to the variable of characterization auxiliary torque, so that the internal combustion engine provides the internal combustion engine total torque for being raised auxiliary torque.

Description

For controlling the method and control device of the auxiliary compressor of driving device
Technical field
The present invention relates to a kind of for controlling the method and control of the auxiliary compressor of the driving device of transport facility Device, the driving device of the transport facility include internal combustion engine, one or more also set other than the auxiliary compressor The compression assembly and auxiliary compressor set, wherein the compression assembly is designed to generate the basic pressurization for being used for internal combustion engine Pressure, and wherein the auxiliary compressor is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine.
Background technique
Internal combustion engine is usually disposed as providing torque, to drive such as transport facility.The torque is furthermore possible to pass through increasing Pressure pressure is adjusted by the air that internal combustion engine supplies.In order to adjust boost pressure, for example, can internal combustion engine compression assembly into Setting such as throttle valve, exhaust-driven turbo-charger exhaust-gas turbo charger, waste gas recovery valve and by-passing valve when necessary, their such phase interworkings in tracheae section It closes, to adjust to the boost pressure for generating nominal torque.But, it is sent out between the cooperation of compression assembly and the adjusting of boost pressure Undesirable interest for delinquency is given birth to, which especially for example causes function impaired in load variations when transport facility accelerates.
The interest for delinquency is attributed to the effect of exhaust-driven turbo-charger exhaust-gas turbo charger being delayed by sometimes.In order to improve exhaust-driven turbo-charger exhaust-gas turbo charger Reaction, 10 2,004 042 272 A1 of DE suggest, export exhaust gas turbine from rated boost pressure and the deviation of actual supercharge pressure The rated speed of the compressor of booster, and the revolving speed of compressor is controlled according to the rated speed by control element.
In addition, for example by 103 02 453 A1 of DE it is known that electrical additional mechanical supercharging is arranged in the air inlet pipeline section of internal combustion engine Device and bypass of the setting with by-passing valve in exhaust pipeline section.Then, can be increased by exhaust-driven turbo-charger exhaust-gas turbo charger and electrical auxiliary The mating reaction of depressor adjusts boost pressure, wherein control by-passing valve according to the revolving speed of electrical hydraulic booster.
Summary of the invention
Even if substantially becoming known for controlling the auxiliary compressor of the driving device of transport facility in the prior art Method and control device, however the technical problem to be solved by the present invention is to, provide improvement for controlling transport facility The method of the auxiliary compressor of driving device and the corresponding control device for being used to control auxiliary compressor.
The technical problem is by the method according to the present invention for controlling the auxiliary compressor of driving device and according to this That invents is used to control the control device of the auxiliary compressor of vehicle drive unit to solve.
According in a first aspect, the present invention relates to a kind of for controlling the auxiliary compressor of the driving device of transport facility Method, the driving device have internal combustion engine, one or more compression assembly also set up other than the auxiliary compressor, With the auxiliary compressor, wherein the compression assembly be designed to generate be used for internal combustion engine basic boost pressure, and Wherein the auxiliary compressor is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine, this method comprises:
Obtain the nominal torque for being used for driving device；
Obtain the variable for characterizing basic torque according to nominal torque, wherein internal combustion engine in response to basic boost pressure and Generate basic torque；
Determine whether basic torque is less than nominal torque according to the variable for characterizing basic torque；
When basic torque is less than nominal torque, obtained according to nominal torque and according to the variable for characterizing basic torque It takes in the variable of characterization auxiliary torque, the additional mechanical supercharging pressure that wherein internal combustion engine is provided in response to auxiliary compressor is auxiliary to generate Help torque；With
When basic torque is less than nominal torque, controlled in this way according to the variable for characterizing auxiliary torque auxiliary Compressor is helped, so that internal combustion engine provides the internal combustion engine total torque for being raised auxiliary torque.
According to second aspect, the present invention relates to a kind of for controlling the auxiliary compressor of the driving device of transport facility Control device, which has internal combustion engine, one or more compression also set up other than the auxiliary compressor Component and the auxiliary compressor, wherein the compression assembly is designed to generate the basic boost pressure for being used for internal combustion engine, And wherein the auxiliary compressor is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine, wherein the control device quilt The method for being designed to carry out the auxiliary compressor for controlling vehicle drive unit according to first aspect.
Method according to the present invention for controlling the auxiliary compressor of the driving device of transport facility, driving dress It sets with internal combustion engine, one or more compression assemblies and the auxiliary compression also set up other than the auxiliary compressor Machine, wherein the compression assembly is designed to generate the basic boost pressure for being used for internal combustion engine, and the wherein auxiliary pressure Contracting machine is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine, this method comprises: obtaining for the specified of driving device Torque obtains the variable for characterizing basic torque according to nominal torque, and wherein internal combustion engine is produced in response to basic boost pressure Raw basic torque determines whether basic torque is less than nominal torque according to the variable for characterizing basic torque, when basic When torque is less than nominal torque, obtained according to nominal torque and according to the variable for characterizing basic torque for characterizing auxiliary The variable of torque, additional mechanical supercharging pressure that wherein internal combustion engine is provided in response to auxiliary compressor generate auxiliary torque, He Dangji When this torque is less than nominal torque, auxiliary compressor is controlled in this way, is turned round so that internal combustion engine offer has been raised auxiliary The internal combustion engine total torque of square.
It can be realized according to the method for the present invention by generating suitable auxiliary torque to including driving in nominal torque The generation of the person's of sailing wish is targetedly reacted.Thus it enables that the exhausted air quantity and consumption of driving device are optimized and be can be improved Driver comfort degree and driving pleasure.Because auxiliary torque can be only provided when basic torque is less than nominal torque, Or auxiliary compressor can only work when basic torque is less than nominal torque, so auxiliary compressor can be protected simultaneously Hold low energy demand.
Auxiliary compressor is, for example, electrical auxiliary compressor.It can be used for example and increased by the rotary-piston of motor drive Depressor or spiral-type supercharger are used through the radial flow compressor of motor drive as electrical auxiliary compressor.Electrically The characteristics of auxiliary compressor is quick controllability and its additional mechanical supercharging pressure for allowing to be quickly obtained generation auxiliary torque.By This can quickly adjust required nominal torque, wherein energy consumption is adjusted in a manner of being suitble to, to protect energy storage device From overweight load.Alternatively, pneumatic type or the compressor otherwise driven also can be used as auxiliary compression Machine.
The compression assembly of gasoline engine may include exhaust-driven turbo-charger exhaust-gas turbo charger, throttle valve and/or the bypass with by-passing valve.Diesel oil The compression assembly of machine may include having the exhaust-driven turbo-charger exhaust-gas turbo charger of variable turbine geometry and/or including throttle valve.It is useless The pressure that air turbine booster can have the turbine being arranged in I. C. engine exhaust pipeline section and be arranged in air-intake of combustion engine pipeline section Contracting machine.For the exhaust-driven turbo-charger exhaust-gas turbo charger with variable turbine geometry, which preferably has adjustable directing vane Piece.Throttle valve is preferably preferably arranged in the turbine of exhaust-driven turbo-charger exhaust-gas turbo charger in intake lines of combustion engines section along the air direction of the supply Before.The bypass is for example designed as channel, the channel by along exhaust gas discharge direction before the turbine of exhaust-driven turbo-charger exhaust-gas turbo charger Exhaust pipeline section region be connected with the exhaust pipeline section region after turbine.
Auxiliary compressor can be set in intake lines of combustion engines section, such as be arranged in air intake duct, to generate for interior The boost pressure of combustion engine, wherein being supplied into air to internal combustion engine via the air intake duct.For example, auxiliary compressor can including It can be arranged in front of or after the compressor of exhaust-driven turbo-charger exhaust-gas turbo charger and/or after throttle valve in combustion engine air inlet pipeline section.It is auxiliary Compressor is helped to generate the boost pressure (additional mechanical supercharging pressure) for being used for internal combustion engine, the auxiliary torque of the boost pressure and acquisition is at just Than.
Driving device can have the crankshaft coupled with internal combustion engine.The crankshaft preferably by driving device by speed changer with The wheel of transport facility connects, to drive transport facility.Auxiliary compressor is not especially and I. C. engine crankshaft phase Connection, but individually driven.Thus auxiliary compressor can control independent of the operation of internal combustion engine and can be Targetedly it is connected in the operation of internal combustion engine when necessary.
The acquisition of nominal torque may include receiving the adjustment signal of instruction accelerator pedal position and being calculated by adjustment signal Nominal torque.Adjustment signal can for example be received by the sensor of detection accelerator pedal position.
Variable for characterizing basic torque can be the real-time basic torque of internal combustion engine, the reality in combustion chambers of internal combustion engines Shi Jiben boost pressure or the other parameters directly proportional to real-time basic torque.For characterizing the acquisition of the variable of basic torque It can be in one or more manipulated parameters of internal combustion engineAnd/or by power storage on the basis of state parameter The performance of device (battery) and/or the when necessary reality by the performance of the power device of one or more other driving devices It is existing.
In order to determine whether basic torque is less than nominal torque, basic torque can be subtracted with nominal torque.When difference is Timing, basic torque are less than nominal torque.Otherwise basic torque is greater than or equal to nominal torque.
Variable for characterizing auxiliary torque can be the real-time auxiliary torque of internal combustion engine, the reality in combustion chambers of internal combustion engines When the additional mechanical supercharging pressure or other variables directly proportional to the real-time additional mechanical supercharging pressure.It is obtained and is used according to nominal torque In characterization auxiliary torque variable in addition can the performance by energy storage device (battery), the performance by auxiliary compressor, By the real-time revolving speed of internal combustion engine and/or the performance of internal combustion engine and/or when necessary by the dynamic of one or more other driving devices The performance of power device and realize.Such as, it may be considered that the travel speed grade adjusted in real time of driving device, electrical energy storage device Charged state, the aging of electrical energy storage device, the working time of electrical energy storage device temperature and/or auxiliary compressor so far And/or operational mode.Auxiliary torque can be in addition related with the preparation degree of auxiliary compressor.
Auxiliary compressor can be adjusted in this way when controlling auxiliary compressor so that it provides additional mechanical supercharging pressure, the auxiliary Boost pressure causes internal combustion engine to generate acquired auxiliary torque.
The method for controlling auxiliary compressor may include obtaining the maximum auxiliary that can be provided by auxiliary compressor The maximum that compressor-promotion boost pressure and acquisition are generated under maximum auxiliary compressor-promotion boost pressure by internal combustion engine Auxiliary compressor-promotion torque.Real-time air of the maximum auxiliary compressor-promotion boost pressure preferably by passing through air inlet pipeline section Mass flow limits.The acquisition of maximum auxiliary compressor-promotion boost pressure and maximum auxiliary compressor-promotion torque is preferred Ground carries out in real time, because auxiliary with vehicle-state, such as internal-combustion engine rotational speed, maximum auxiliary compressor-promotion boost pressure and maximum Help the variation of compressor-promotion torque related.
Maximum auxiliary compressor-promotion torque can also be provided other than maximum basic torque during promoting operation. Promoting operation is that mid-term accelerates operation, which can be required simultaneously by farthest elapsing the accelerator pedal of driving device And continue several seconds to a few minutes.
According to the method for controlling auxiliary compressor can when obtaining maximum auxiliary compressor-promotion torque it is another The real-time revolving speed of the outer electric current and/or internal combustion engine for considering to use for auxiliary compressor.Alternatively or extraly, it can obtain Consider when maximum auxiliary compressor-promotion torque: the state parameter of driving device, such as the travel speed grade adjusted in real time；With/ Or the state parameter of electrical energy storage device, such as aging and/or the electric energy of electrical energy storage device charged state, electrical energy storage device The temperature of storage device；And/or the state parameter of auxiliary compressor, such as duration is promoted, pressure is assisted during the promotion duration Contracting machine has produced the maximum auxiliary compressor-promotion boost pressure so far.Auxiliary compressor-promotion torque can in addition with The preparation degree of auxiliary compressor is related.
For example, desired torque can be determined on the basis of the real-time revolving speed of travel speed grade adjusted and internal combustion engine, The expectation torque limits the limit by ultimate torque, and the ultimate torque is based on the electric current and internal combustion engine used for auxiliary compressor Revolving speed.The limited expectation torque then can be converted to the auxiliary compression by the factor (Faktor) in 0 to 1 range Machine maximum lift torque, the factor are based on limiting electrical energy storage device real-time status and/or auxiliary compressor real-time status One or more parameters determine.For it is expected the determination of torque, it may be considered that the factor and/or the ultimate torque Engine comprehensive characteristics curve (Kennfelder).
In addition the method for controlling auxiliary compressor may include the basic torque of maximum for obtaining internal combustion engine；It is examining The total torque limiting value of driving device is determined in the case where considering maximum auxiliary torque and maximum basic torque；And by nominal torque It is compared with total torque limiting value.The total torque limiting value of driving device can be the available maximum torsion of entire driving device Square, such as all power devices by driving device such as internal combustion engine, auxiliary compressor and motor (E-Maschine) when necessary The sum of maximum available torque.If being determined that nominal torque is big when nominal torque to be compared with total torque limiting value In total torque limiting value, then the torque is limited in total torque limiting value.In other situations, nominal torque is remained unchanged.
Maximum auxiliary compressor-promotion torque facilitates driving device herein and provides raised total torque.It is possible thereby to have The effect of effect ground improves driving device, this, which for example shows as transport facility, more preferably and to be quickly accelerated.
Wherein driving device include internal combustion engine and auxiliary compressor, but not including that motor as auxiliary power unit In embodiment, total torque limiting value can be the sum of maximum auxiliary compressor-promotion torque and maximum basic torque or can be with It is maximum internal combustion engine total torque.
In certain embodiments, driving device can be combination drive and go back other than internal combustion engine and auxiliary compressor With motor.The motor is preferably connected with crankshaft and provides the motor torque for driving transport facility.? In this case, the maximum motor torque of the motor of determining driving device is also comprised according to the method for the present invention, wherein true Determine to consider the maximum motor torque when total torque limiting value.Maximum then can be for the total torque limiting value of combination drive Auxiliary compressor-promotion torque, maximum basic the sum of torque and maximum motor torque or maximum internal combustion engine total torque and most The sum of big motor total torque.
According to the method for controlling auxiliary compressor, when in the mistake being compared to nominal torque with total torque limiting value When learning that nominal torque is greater than total torque limiting value in journey, maximum auxiliary compression can be obtained during obtaining auxiliary torque Machine-promotion torque is as auxiliary torque.If such as the even excess power device of driving unit is also run in peak torque, Then the driving device generally provides the torque being consistent with total torque limiting value.
Raised internal combustion engine total torque can be provided by maximum auxiliary compressor-promotion torque, so as to reach more Nominal torque that is high, showing driver's wish.This for example when accelerating to transport facility (at this moment driver requested most Big possible torque) it is desired, because of it is thus achieved that driver comfort degree and campaign-styled driving.
According to the method for controlling auxiliary compressor, when in the mistake being compared to nominal torque with total torque limiting value When learning that nominal torque is less than or equal to total torque limiting value and is greater than maximum basic torque in journey, it can be turned round obtaining auxiliary The auxiliary torque for being less than or equal to maximum auxiliary compressor-promotion torque is obtained during square as auxiliary torque.
According to the method for controlling auxiliary compressor, it may be considered that the specified gradient of indoor boost pressure of burning (Ladedrucksollgradient).Thus, it is possible to should how fast reach nominal torque to the torque provided in real time to have Targetedly adjust.By targetedly being adjusted to the torque provided in real time, can for example limit exhaust gas discharge and/or Meet the wish of driver in short time.
Method for controlling auxiliary compressor can alternatively or extraly include: to obtain the specified ladder of boost pressure Degree；Auxiliary compressor-transient state the boost pressure that can be provided by auxiliary compressor is provided based on the specified gradient of boost pressure；And acquisition It is used to characterize the change of auxiliary compressor-transient torque by what internal combustion engine generated under the auxiliary compressor-transient state boost pressure Amount.The acquisition of the specified gradient of boost pressure-can for example be carried out according to driver's wish.For this purpose, for example can detecte acceleration The movement velocity of the movement of pedal, especially accelerator pedal and can be according to the movement of accelerator pedal, especially accelerator pedal Movement velocity obtain the specified gradient of boost pressure-.
Auxiliary compressor-transient torque can also be provided other than basic torque during transient state compensating operation.Wink State compensating operation is compensating operation that is of short duration, at most continuing several seconds.It can for characterizing auxiliary compressor-transient torque variable Be auxiliary compressor-transient torque itself, auxiliary compressor-transient state boost pressure, auxiliary compressor revolving speed to be regulated, The transient current for the auxiliary compressor being arranged for transient operation or its directly proportional to auxiliary compressor-transient torque Its variable.
According to the method for controlling auxiliary compressor, when internal combustion engine total torque is less than or equal to the maximum basic torsion of internal combustion engine When square, auxiliary compressor-transient torque can be equal to the difference of internal combustion engine total torque and basic torque.In this case, auxiliary torque It can correspond to auxiliary compressor-transient torque.When internal combustion engine total torque is greater than the internal combustion engine basic torque of maximum, auxiliary compression Machine-transient torque can be equal to the difference of maximum basic torque and basic torque.In this case, auxiliary torque is equal to or more than auxiliary Compressor-transient torque.
The maximum auxiliary compressor of characterization-transient state torsion can be less than or equal to by characterizing auxiliary compressor-transient torque variable The variable of square.The variable for characterizing maximum auxiliary compressor-transient torque can be based on electric current, the internal combustion used for auxiliary compressor The real-time revolving speed of machine and/or state parameter as mentioned above determine.For example, characterizing maximum auxiliary compressor-transient state torsion obtaining Transient state duration can be included in the variable of square, auxiliary compressor has generated auxiliary at present during the transient state duration Boost pressure.
For example, it is acquired for characterize auxiliary compressor-transient torque variable can be auxiliary compressor wait adjust The revolving speed of section.The variable for characterizing maximum auxiliary compressor-transient torque then can be maximum auxiliary compressor-transient current, should Maximum auxiliary compressor-transient current is converted into maximum (top) speed, to limit the revolving speed to be regulated of auxiliary compressor.Thus also Such auxiliary compressor transient torque can be allowed in of short duration compensating operation, energy consumption passes through maximum auxiliary compression Machine-transient torque is optimized.
Such as electric current can be determined based on the real-time revolving speed of travel speed grade adjusted and internal combustion engine and is based on limit One or more parameters of the real-time status of electrical energy storage device and/or the real-time status of auxiliary compressor are made to determine 0 to 1 The factor in range is then act through the factor for identified electric current and is converted into maximum auxiliary compressor-transient current.It is maximum auxiliary It helps compressor-transient current in addition can be used to, is utilized based on the electric current used for auxiliary compressor and by auxiliary compressor Electric current limits the rated speed of auxiliary compressor, to farthest influence maximum to compensate torque by auxiliary compressor.
Therefore, auxiliary torque can be selected in this way, so that it best matches basic torque and nominal torque.As a result, for example The basic torque that can avoid high exhaust gas discharge, without reducing internal combustion engine total torque.
When driving device includes motor, the method for controlling auxiliary compressor can also include determining to by motor The motor torque of offer, wherein auxiliary torque is determined according to motor torque.Subsequent auxiliary torque can be matched best Basic torque, motor torque and nominal torque.
The invention further relates to a kind of for controlling the control device of the auxiliary compressor of vehicle drive unit, the driving device With internal combustion engine, one or more compression assembly and the auxiliary compressor also set up other than the auxiliary compressor, Wherein the compression assembly is designed to generate the basic boost pressure of internal combustion engine, and the auxiliary compressor is designed to use In the additional mechanical supercharging pressure for generating internal combustion engine.The control device is designed to execute driving as described in above for controlling The method of the auxiliary compressor of dynamic device.
The control device preferably includes processor such as microprocessor and data storage.It is preferably deposited in data storage Enter program, which includes the instruction for processor, accordingly to control the electrical auxiliary compressor with the method.
The control device may include multiple signal input parts and signal output end.It can example by the signal input part If obtained, the adjustment signal of accelerator pedal position, internal-combustion engine rotational speed, the information and/or in addition about electrical energy storage device are described Parameter.It can control electrical auxiliary compressor, internal combustion engine, compression assembly and motor when necessary by the signal output end.
The control device can be partially or entirely integrated into engine control system.
The invention additionally relates to transport facilitys, especially motor vehicle, with driving device as described above and control Device processed.The driving device have internal combustion engine, one or more compression assembly also set up other than the auxiliary compressor, It is and described wherein the compression assembly is designed to generate the basic boost pressure of internal combustion engine with the auxiliary compressor Auxiliary compressor is designed to generate the additional mechanical supercharging pressure of internal combustion engine.The internal combustion engine can be gasoline engine or diesel engine (or being diesel internal combustion engine).
Transport facility may include the accelerator pedal with sensor, can be mentioned from the sensor to the control device For adjustment signal.In addition, the transport facility may include for identification internal-combustion engine rotational speed and/or for provide about electric energy The sensor of the information of storage device and/or other parameters, these sensors are equally connected via data line with the control device It connects.
Detailed description of the invention
Illustratively and the embodiment of the present invention is described with reference to the attached figures now.Wherein:
Fig. 1 schematically shows the first embodiment of the driving system with control device according to the present invention；
Fig. 2 schematically shows the electrical auxiliary compressors of internal combustion engine and driving system with air inlet pipeline section；
Fig. 3 shows the flow chart of the method for controlling electrical auxiliary compressor according to first embodiment；
Fig. 4 shows the schematic diagram that maximum auxiliary torque changes with internal-combustion engine rotational speed；
Fig. 5 shows the schematic diagram that auxiliary torque changes over time under approximate stabilized (steady-state) speed；
Fig. 6 is shown in the case where controlling electrical auxiliary compressor according to first embodiment for determining total torque pole The flow chart of the method for limit value；
Fig. 7 schematically shows the second embodiment of the driving system with control device according to the present invention；
Fig. 8 shows the flow chart of the method for controlling electrical auxiliary compressor according to the second embodiment；
The schematic diagram that Fig. 9 shows maximum auxiliary torque and maximum motor torque changes with internal-combustion engine rotational speed；
Figure 10 shows the schematic diagram that motor torque changes over time under approximate stabilized (steady-state) speed；
Figure 11 is shown in the case where controlling electrical auxiliary compressor according to the second embodiment for determining total torque The flow chart of the method for limiting value.
Specific embodiment
The first embodiment that driving is 1 is shown in Fig. 1.It includes driving device 2 that driving, which is 1, and driving device 2 is via crankshaft 10 and speed changer 11 be connected with drive shaft 12 so that be connected with drive shaft 12 wheel of vehicle movement.
As shown in Figure 2, driving device 2 has internal combustion engine 20 and electrical auxiliary compressor 21.Internal combustion engine 20 and internal combustion engine The air intake duct 22 of 20 air inlet pipeline sections is connected and is connected with exhaust duct 23.In order to adjust the boost pressure in air intake duct 22, 20 air inlet pipeline section of internal combustion engine includes the exhaust-driven turbo-charger exhaust-gas turbo charger 24 with turbine 240 and compressor 241, the compressor by axis with Turbine 240 is connected.Turbine 240 is arranged in exhaust duct 23 and the exhaust gas by being discharged from internal combustion engine 20 drives.Compression Machine 241 is arranged in air intake duct 22 and pushes the air in retraction air flue 22 in the driving of turbine 240.
Electrical auxiliary compressor 21 is arranged in exhaust-driven turbo-charger exhaust-gas turbo charger 24 along the air direction of the supply 25 in air intake duct 22 After compressor 241 and it is designed to improve the boost pressure in air intake duct 22.This leads to the moment of torsion pair of driving device 2 It is improved for the driving device without electrical auxiliary compressor, as electrical auxiliary about being used to control referring to Fig. 3 and Fig. 6 As the method for helping compressor elaborates further below.
As shown in fig. 1, in addition vehicle 1 has engine control system 3 and energy storage device 4.Engine control dress It sets 3 to be connected with driving device 2 by data line 130 to obtain the revolving speed of internal combustion engine 20, passes through data line 131 and energy stores Device 4 is connected to obtain the information about its state, and (not by the sensor on data line 132 and accelerator pedal 14 Show) it is connected to receive the adjustment signal for including driver's wish.Engine control system 3 includes that processor and storage are set It is standby.The processor is designed to as follows explain with further reference to Fig. 3 and Fig. 6 by the program in deposit storage equipment to execute The method for controlling electrical auxiliary compressor stated.Engine control system 3 is connected by data line 133 with driving device 2 It connects, so to control electrical auxiliary compressor 21, the offer of internal combustion engine 20 is made to be raised auxiliary torque MZInternal combustion engine always turn round Square MVZ, and to supply other control instruction to driving device 2, such as supply the nominal position of throttle valve, for injection Information and other instructions.
It is connected with the energy storage device 4 of battery forms with driving device 2, to supply electric energy to it.
Fig. 3 shows the method 5 for controlling electrical auxiliary compressor 21.It is obtained in step 50 comprising driver's wish Nominal torque for driving device.For this purpose, receiving adjustment signal from the sensor on accelerator pedal and considering to adjust Nominal torque is determined in the case where signal.
Basic torque M is determined according to nominal torque in step 51V, wherein internal combustion engine is in response to by exhaust gas turbocharge Basic boost pressure that device, throttle valve, waste gas recovery valve and by-passing valve provide generates basic torque MV.Basic torque MVIt is small In or be equal to the torque M substantially of maximum shown in Fig. 4VmaxTorque.The base obtained under approximate stabilized (steady-state) speed is shown in Fig. 5 This torque MVExemplary temporal change curve.
Basic torque M is determined in step 52VWhether nominal torque is less than.
In step 53, as basic torque MVWhen less than nominal torque, according to nominal torque and basic torque MVObtain auxiliary Torque MZ, wherein internal combustion engine generates auxiliary torque M in response to the additional mechanical supercharging pressure provided by electrical auxiliary compressorZ.It selects in this way Select auxiliary torque MZ, by internal combustion engine total torque MVZRapidly but few discharge ground is adjusted to the value corresponding to nominal torque. Total torque limiting value M should be for example rapidly reached in acceleratormax。
In step 54, as basic torque MVWhen less than nominal torque, according to auxiliary torque MZIt controls in this way auxiliary Compressor is helped, so that internal combustion engine offer has been raised auxiliary torque MZInternal combustion engine total torque MVZ, show in Fig. 5 approximate steady Determine internal combustion engine total torque M under revolving speedVZTime changing curve.
When obtaining nominal torque in step 50, total torque limiting value M can be being consideredmaxIn the case where be otherwise determined that volume Determine torque.Fig. 6 is shown for determining total torque limiting value MmaxMethod 6.
The maximum that determination can be provided by exhaust-driven turbo-charger exhaust-gas turbo charger, throttle valve, waste gas recovery valve and by-passing valve in a step 60 Basic boost pressure.It is obtained in a step 61 based on the basic boost pressure of the maximum, the basic torque of maximum generated by internal combustion engine MVmax。
The auxiliary that can be provided to the full extent by auxiliary compressor under maximum basic boost pressure is provided in step 62 Compressor promotes boost pressure.It is contemplated that battery status, the mass flow in air-intake of combustion engine pipeline section and internal-combustion engine rotational speed.
It is obtained in step 63 based on maximum auxiliary compressor-promotion boost pressure, via the maximum auxiliary of internal combustion engine generation Help compressor-promotion torque MBoostmax.Maximum auxiliary compressor-promotion torque MBoostmaxExpression to the full extent can be by electrical Auxiliary compressor-promotion torque that auxiliary compressor is realized, in quick accelerate under the support of electrical auxiliary compressor by Driving device is farthest provided.
Considering maximum auxiliary compressor-promotion torque M in step 64BoostmaxWith maximum basic torque MVmaxThe case where The total torque limiting value M of lower determining driving devicemax.Total torque limiting value MmaxIt is via driving device main (herrschende) producible torque to the full extent under control condition.Total torque limiting value M in the present embodimentmaxIt is corresponding In internal combustion engine peak torque MVZmax。
Fig. 4 shows maximum basic torque MVmaxWith total torque limiting value MmaxThe schematic diagram changed with internal-combustion engine rotational speed.Most Big basic torque MVmaxIt linear rise and keeps being basically unchanged in middle range of speeds B in low engine speed range A.Then maximum base This torque MVmaxDecline again in high engine speed range C.Total torque limiting value MmaxIn low engine speed range A linear rise, wherein on this It rises less than maximum basic torque MVmaxRising.Total torque limiting value MmaxSlightly decline in middle range of speeds B, then its High engine speed range C, it is similar to maximum basic torque MVmaxDecline quickly like that.
From in total torque limiting value MmaxWith maximum basic torque MVmaxBetween difference learn maximum auxiliary compressor-promotion Torque MBoostmax, total torque limiting value M is used as in Fig. 4maxWith maximum basic torque MVmaxThe distance between show.It is maximum Auxiliary compressor-promotion torque MBoostmaxAs the rising of revolving speed acutely declines, in low engine speed range A in middle range of speeds B summary Micro- decline.In high engine speed range C, maximum lift torque MBoostmaxThen it is basically unchanged.Because of maximum auxiliary compressor-promotion torque MBoostmaxIt is at the low rotational speed highest, so in the electrical accelerator of auxiliary compressor just at the low rotational speed particularly effectively It plays a role.
Fig. 5 shows the basic torque M of the internal combustion engine under approximate stabilized (steady-state) speedVTime changing curve and internal combustion engine total torque MZVTime changing curve.Basic torque MVGeneral linear rising, until it reaches maximum basic torque MVmax, and connect down To remain unchanged.Internal combustion engine total torque MVZTorque M more basic than internal combustion engineVQuickly rise, until it reaches total torque limiting value MmaxOr internal combustion engine maximum total torque, and next remain unchanged.Basic torque MVWith internal combustion engine total torque MVZRising can be with Change according to driver's wish or according to the movement of accelerator pedal, so that accelerator most optimally carries out, especially quickly It is carried out with few discharge.
The auxiliary torque M influenced by electrical auxiliary compressorZIt is defined as internal combustion engine total torque MVZWith basic torque MVDifference.It changes over time, auxiliary torque MZRise simultaneously first, once then basic torque MVWith auxiliary torque MZThe sum of or Internal combustion engine total torque MVZEqual to total torque limiting value MmaxWhen, auxiliary torque MZDecline again.
Auxiliary torque MZIt may include auxiliary compressor-transient torque MInstAnd/or auxiliary compressor-promotion torque MBoost。 If knowing that driver wishes to improve total torque (internal combustion engine total torque M from nominal torqueVZ), then electrical auxiliary compressor is made first It is compensated at transient state and is next transitioned into lifting process.In internal combustion engine total torque MVZReach and is equal to maximum basic torque MVmaxValue Before, it is generated by electrical auxiliary compressor and is equal to auxiliary compressor-transient torque MInstAuxiliary torque MZ.Auxiliary compressor- Transient torque MInstMaximum auxiliary compressor-transient torque relevant to internal-combustion engine rotational speed and battery status is not allowed more than.It is interior Combustion engine total torque MVZPass through auxiliary compressor-transient torque MInstQuickly increased.
Auxiliary compressor-transient torque M is obtained in this wayInst, method is: obtaining the specified gradient of boost pressure, is based on the increasing The specified gradient of pressure pressure come obtain can by auxiliary compressor provide auxiliary compressor-transient state boost pressure and thus obtain it is auxiliary Help compressor-transient torque MInst.As internal combustion engine total torque MVZBasic torque M maximum less than or equal to internal combustion engineVmaxWhen, auxiliary Compressor-transient torque MInstEqual to internal combustion engine total torque MVZWith basic torque MVDifference, and work as internal combustion engine total torque MVZGreatly In the maximum basic torque M of internal combustion engineVmaxWhen, auxiliary compressor-transient torque MInstEqual to maximum basic torque MVmaxIt is turned round with basic Square MVDifference.Auxiliary compressor-transient torque MInstLess than or equal to maximum auxiliary compressor-transient torque, the maximum auxiliary Compressor-transient torque and electric current, internal-combustion engine rotational speed and/or driving device, battery and the auxiliary used for auxiliary compressor The state parameter of compressor is related.
If total torque MVZGreater than maximum basic torque MVmax, basic torque is less than maximum basic torque MVmax, and drive The internal combustion engine total torque M of dynamic deviceVZIt should further increase, then driving device is transitioned into promotion operation.Here, electrical auxiliary Compressor is generated by auxiliary compressor-transient torque MInstWith auxiliary compressor-promotion torque MBoostThe auxiliary torque M of compositionZ。
If basic torque MVReach and is equal to maximum basic torque MVmaxValue, and internal combustion engine total torque MVZShould by into One step is increased to accelerate the vehicle, then auxiliary torque MZEqual to auxiliary compressor-promotion torque MBoost.Auxiliary compressor-promotion Torque MBoostMaximum, which rises to, is obtaining maximum basic torque MVmaxIn the case where be equal to maximum auxiliary torque MBoostmaxValue.
Driving be 1 ' second embodiment be shown in FIG. 7.Be compared in the of 1 with the driving in Fig. 1, driving be 1 ' driving Device 2 ' there is motor 26 (E-Maschine) to be used as auxiliary power unit.Internal combustion engine 20 and electrical auxiliary compressor 21 are such as ginseng According to being designed like that described in Fig. 2.Motor 26 and internal combustion engine 20 and it is connected with speed changer 11 and is designed to generate electricity Motivation torque ME.Motor 26 is connected via data line 134 with engine control system 3.Engine control system 3 is designed to use In control motor 26 in this way, it is made to provide suitable motor torque MEFor using.
Fig. 8 show for controlling electrical auxiliary compressor 21 method 5 '.Step 50 and 51 is corresponding to the step in Fig. 3 50 and 51.
Motor torque M is obtained according to the basic torque of nominal torque in step 55E.Motor torque MEIt is less than Fig. 9 Shown in maximum motor torque MEmaxTorque.The acquired motor torque M under approximate stabilized (steady-state) speedEIt is exemplary Time changing curve is shown in FIG. 10.
In step 52 ' middle determination, basic torque MVWith motor torque METhe sum of ME+MVWhether nominal torque is less than.
Step 53 ' in, as basic torque MVWith motor torque METhe sum of ME+MVWhen less than nominal torque, according to specified Torque, acquired basic torque MVWith motor torque METo obtain auxiliary torque MZ, wherein internal combustion engine is in response to auxiliary compression The additional mechanical supercharging pressure that machine provides generates auxiliary torque MZ.Auxiliary torque M is selected in this wayZ, the total torque of driving device is fast Fastly but few discharge ground adjusts the value arrived equal to nominal torque.In accelerator, such as total torque should be rapidly reached Limiting value Mmax.The total torque is equal to internal combustion engine total torque MVZWith motor torque METhe sum of.
Step 54 ' in, as basic torque MVWith motor torque METhe sum of ME+MVWhen less than nominal torque, control in this way Auxiliary compressor, so that internal combustion engine offer has been raised auxiliary torque MZInternal combustion engine total torque MVZ, time changing curve exists It is shown in Fig. 9.
It in step 50, can be with other than the adjustment signal of the sensor on accelerator pedal when determining nominal torque Consider total torque limiting value Mmax。
It is shown in Figure 11 and is considering motor torque MEIn the case where, for determining total torque limiting value MmaxMethod 6 ‘.Step 60,61,62 and 63 correspond to step 60,61,62 and 63 in Fig. 6.In step 65, based on maximum basic torque MVmaxWith maximum auxiliary compressor-promotion torque MBoostmaxTo determine internal combustion engine peak torque MVZmax, and determine in acquirement Combustion engine peak torque MVZmaxIn the case where can by motor provide maximum motor torque MEmax.Step 64 ' in, consider most Big auxiliary compressor-promotion torque MBoostmax, maximum basic torque MVmaxWith maximum motor torque MEmaxIn the case where determine The total torque limiting value M of driving devicemax。
Maximum basic torque MVmax, internal combustion engine maximum total torque MVZmaxWith total torque limiting value MmaxWith internal-combustion engine rotational speed Change curve schematic diagram is shown in FIG. 9.Maximum basic torque MVmaxWith internal combustion engine maximum total torque MVZmaxChange curve just As referring to illustrated by Fig. 4.Total torque limiting value MmaxThere is stable value in low engine speed range A.Total torque limiting value MmaxSlightly decline in middle range of speeds B, acutely declines in high engine speed range C.
From total torque limiting value MmaxWith internal combustion engine maximum total torque MVZmaxBetween difference obtain maximum motor torque MEmax, total torque limiting value M is used as in Fig. 9maxWith internal combustion engine maximum total torque MVZmaxThe distance between show.With revolving speed Rise, maximum motor total torque MEmaxAcutely decline in low engine speed range A, slightly declines in middle range of speeds B.In high revolving speed Range C, maximum motor total torque MEmaxIt is then basicly stable.Because of maximum motor total torque MEmaxIt is basicly stable, so motor It can effectively be used at all speeds when accelerating.
Figure 10 shows the basic torque M of the internal combustion engine under approximate stabilized (steady-state) speedVTime changing curve and correspond to it is electronic Machine torque MEWith basic torque MVThe sum of torque ME+MVTime changing curve.Basic torque MVGeneral linear rising, until It reaches maximum basic torque MVmax, and next remain unchanged.Torque ME+MVWith the basic torque M of internal combustion engineVOn similarly It rises, until it reaches peak torque MEmax+MVmax, and next remain unchanged.
The motor torque M as caused by motorEIt is defined as torque ME+MVWith basic torque MVBetween difference.Motor is turned round Square MEIt changes over time substantially constant.
As the auxiliary torque M being also shown in FIG. 5ZLike that, motor torque MEIt can also be added in transient operation To be rapidly achieved nominal torque, and can also be added in promoting operation to increase the total torque of driving mechanism.
List of numerals
1,1 ' driving system
10 crankshafts
11 speed changers
12 drive shafts
130-134 data line
14 accelerator pedals
2,2 ' driving device
20 internal combustion engines
21 electrical auxiliary compressors
22 air intake ducts
23 exhaust ducts
24 exhaust-driven turbo-charger exhaust-gas turbo chargers
240 turbines
241 compressors
The 25 air direction of the supply
26 motors
3 engine control systems
4 energy storage devices
5, the 5 ' method for controlling electrical auxiliary compressor
50 obtain the nominal torque of driving device
51 obtain basic torque
52, it 52 ' determines basic torque and whether motor torque is less than nominal torque when necessary
53,53 ' auxiliary torque is obtained
54,54 ' control auxiliary compressor
55 obtain motor torque
6, the 6 ' method for determining total torque limiting value
60 determine maximum basic boost pressure
61 obtain maximum basic torque
62 obtain the maximum auxiliary compressor-promotion boost pressure that can be provided by auxiliary compressor
63 obtain maximum auxiliary compressor-promotion torque
64,64 ' total torque limiting value is determined
65 determine internal combustion engine peak torque
A low engine speed range
The range of speeds in B
C high engine speed range
M torque
MEMotor torque
MEmaxMaximum motor torque
MVBasic torque
MVmaxMaximum basic torque
MVZInternal combustion engine total torque
MVZmaxInternal combustion engine maximum total torque
MmaxTotal torque limiting value
MZThe auxiliary torque of electrical auxiliary compressor
MBoostAuxiliary compressor promotes torque
MBoostmaxAuxiliary compressor maximum lift torque
MInstAuxiliary compressor transient torque
N internal-combustion engine rotational speed
The t time

Claims (10)

1. a kind of method of the auxiliary compressor (21) of the driving device (2,2 ') for controlling transport facility, the driving Device includes internal combustion engine (20), one or more compression assembly (24) also set up other than the auxiliary compressor and auxiliary Compressor (21) are helped, wherein the compression assembly (24) is designed to generate the basic boost pressure for being used for internal combustion engine (20), And wherein the auxiliary compressor (21) is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine (20), the method Include:
Obtain the nominal torque that (50) are used for driving device (2)；
The variable that (51) are used to characterize basic torque is obtained according to the nominal torque, wherein internal combustion engine is in response to the basic increasing Pressure pressure and generate the basic torque (MV)；
Determine whether (52) described basic torque is less than the nominal torque according to the variable for characterizing basic torque；
As the basic torque (MV) when being less than the nominal torque, according to the nominal torque and described for characterizing basic torsion The variable of square obtains (53,53 ') for characterizing auxiliary torque (MZ) variable, wherein the internal combustion engine (20) is in response to described auxiliary The additional mechanical supercharging pressure of compressor (21) offer is helped to generate the auxiliary torque (MZ)；With
As the basic torque (MV) when being less than the nominal torque, according to described for characterizing auxiliary torque (MZ) variable with Such mode controls (54, the 54 ') auxiliary compressor (21) so that the internal combustion engine (20) offer be raised it is described auxiliary Help torque (MZ) internal combustion engine total torque (MVZ)。
2. according to the method described in claim 1, including:
Obtain maximum auxiliary compressor-promotion boost pressure that (62) can be provided by auxiliary compressor (21)；With
Obtain the maximum auxiliary compressor-that (63) are generated under maximum auxiliary compressor-promotion boost pressure by internal combustion engine (20) Promote torque (MBoostmax)。
3. according to the method described in claim 2, wherein, in acquisition (63) maximum auxiliary compressor-promotion torque (MBoostmax) When consider that the state of the electric current used for auxiliary compressor (21), the revolving speed of internal combustion engine (20) and/or driving device (2,2 ') is joined The state parameter of several and/or electrical energy storage device (4) state parameter and/or auxiliary compressor (21).
4. according to the method described in claim 2, including:
Obtain the basic torque of maximum of (61) described internal combustion engine；
Consider maximum auxiliary torque (MBoostmax) and maximum basic torque (MVmax) in the case where determine (64,64 ') driving device Total torque limiting value (the M of (2,2 ')max)；
By nominal torque and total torque limiting value (Mmax) be compared.
5. according to the method described in claim 4, including:
Determine the maximum motor torque (M of the motor (26) of (65) driving device (2,2 ')Emax), wherein determining total torque pole Limit value (Mmax) when consider the maximum motor torque (MEmax)。
6. according to the method described in claim 4, wherein, when nominal torque is greater than total torque limiting value (Mmax) when, it obtains maximum Auxiliary compressor-promotion torque (MBoostmax) it is used as auxiliary torque (MZ), and wherein when nominal torque is less than or equal to total turn round Moment pole limit value (Mmax) when, it obtains and is less than or equal to auxiliary compressor maximum lift torque (MBoostmax) auxiliary torque as auxiliary Help torque (MZ)。
7. method according to claim 1 to 6, comprising:
Obtain the specified gradient of boost pressure；
Auxiliary compressor-the transient state that can be provided by auxiliary compressor (21) is obtained based on the specified gradient of the boost pressure to be pressurized Pressure；With
It obtains and is used to characterize auxiliary compressor-by what internal combustion engine (20) generated under the auxiliary compressor-transient state boost pressure The variable of transient torque.
8. according to the method described in claim 7, wherein, when internal combustion engine total torque is less than or equal to the maximum basic torque of internal combustion engine When, auxiliary compressor-transient torque is equal to the difference of internal combustion engine total torque and basic torque, and wherein when internal combustion engine total torque is big When internal combustion engine maximum basic torque, auxiliary compressor-transient torque is equal to the difference of maximum basic torque and basic torque.
9. according to the method described in claim 7, wherein, it is less than or waits for characterizing auxiliary compressor-transient torque variable It can in the variable of the variable for characterizing maximum auxiliary compressor-transient torque, the maximum auxiliary compressor-transient torque With the revolving speed of electric current, internal combustion engine (20) and/or the state parameter of driving device (2,2 ') used for auxiliary compressor (21) and/ Or the state parameter of electrical energy storage device (4) and/or the state parameter of auxiliary compressor (21) it is related.
10. a kind of control device of the auxiliary compressor (21) of the driving device (2,2 ') for controlling transport facility, institute State driving device with internal combustion engine (20), one or more compression assembly also set up other than the auxiliary compressor and The auxiliary compressor (21), wherein the compression assembly is designed to generate the basic boost pressure for being used for internal combustion engine, and And wherein the auxiliary compressor (21) is designed to generate the additional mechanical supercharging pressure for being used for internal combustion engine (20), the wherein control Device be designed to execute according to claim 1 to described in one of 9 for control transport facility driving device (2, 2 ') auxiliary compressor method.
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