CN105143700A - Hydrostatic clutch control system - Google Patents

Hydrostatic clutch control system Download PDF

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Publication number
CN105143700A
CN105143700A CN201480023178.6A CN201480023178A CN105143700A CN 105143700 A CN105143700 A CN 105143700A CN 201480023178 A CN201480023178 A CN 201480023178A CN 105143700 A CN105143700 A CN 105143700A
Authority
CN
China
Prior art keywords
clutch
operating system
hydrostatic
control valve
pressure set
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.)
Pending
Application number
CN201480023178.6A
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Chinese (zh)
Inventor
M·迪尔泽
M·格雷特勒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of CN105143700A publication Critical patent/CN105143700A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D48/0206—Control by fluid pressure in a system with a plurality of fluid-actuated clutches
    • 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
    • B60K6/22—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 apparatus, components or means specially adapted for HEVs
    • B60K6/38—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 apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2054—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed by controlling transmissions or clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/12—Dynamic electric regenerative braking for vehicles propelled by dc motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/50—Drive Train control parameters related to clutches
    • B60L2240/507—Operating parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/26—Transition between different drive modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
    • F16D2048/0233—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
    • F16D2048/0236—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation with multiple independent pumps, e.g. one per clutch, or for supplying fluid to different systems
    • F16D2048/0242—Two or more rotating pumps driven together by the same power source, e.g. connected by a shaft, or a single pump having two or more fluid outputs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0227—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices
    • F16D2048/0233—Source of pressure producing the clutch engagement or disengagement action within a circuit; Means for initiating command action in power assisted devices by rotary pump actuation
    • F16D2048/0245—Electrically driven rotary pumps
    • F16D2048/0248—Reversible rotary pumps, i.e. pumps that can be rotated in the two directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0266—Actively controlled valves between pressure source and actuation cylinder
    • 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
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention relates to a hydrostatic clutch actuation system having a first and a second slave cylinder (21, 22) that can be actuated hydrostatically, by means of which the two clutches (10, 11) can be actuated independently of one another. The invention is characterized in that the two hydrostatically actuable slave cylinders (21, 22) are connected hydrostatically via branched hydraulic paths (25, 35) to only one hydraulic setting device (26, 46).

Description

Hydrostatic clutch operating system
Technical field
The present invention relates to a kind of hydrostatic clutch operating system, it has the first and second slave cylinders that can hydrostatically handle, and can be handled independently of each other by described slave cylinder two clutches.The invention still further relates to a kind of parallel type hybrid dynamic drivetrain, it has: be connected to the cut-off clutch between internal-combustion engine and motor; Be connected to the starting clutch between this motor and speed changer; And the hydrostatic clutch operating system described before.In addition, the present invention relates to a kind of method for running this parallel type hybrid dynamic drivetrain.
Background technique
By the known a kind of hydraulic pressure installation of German laid-open document DE102012202162A1, it is for by being arranged in the other hydraulic working cylinder of clutch to handle this clutch, this clutch release slave cylinder is connected with volume flowrate source via hydraulic pipe line, wherein, the volume flowrate in this volume flowrate source is controlled according to from the signal of attaching troops to a unit in the sensor of this hydraulic pressure installation by control unit, wherein, described volume flowrate source is by being arranged in being combined to form of motor in common housing and oil hydraulic pump.
Summary of the invention
The object of the invention is to, the separate manipulation of slave cylinder to two clutches by two hydrostatic manipulations of energy is simplified.
In the hydrostatic clutch operating system of one, it has the first and second slave cylinders that can hydrostatically handle, can be handled independently of each other by described slave cylinder two clutches, this object realizes thus: these two slave cylinders that can hydrostatically handle hydrostatically are connected with an only hydraulic pressure set device via the hydraulic path of branch.These two will be preferably starting clutch in the parallel type hybrid dynamic drivetrain of Motor Vehicle and cut-off clutch by the clutch handled independently of each other.These two clutches can such as be handled by two hydrostatic actuators and/or by the hydraulic system of complexity.Propose according to the present invention's basic sides, only single hydraulic pressure set device (such as independent hydraulic actuator or independent oil hydraulic pump) is connected via hydraulic path and this two slave cylinders that can hydrostatically handle of branch.This provides following advantage: can cancel the second hydraulic pressure set device, especially the second hydraulic actuator.By mutual connection according to the present invention, this hydraulic structure can be significantly simplified.The separate manipulation of these two clutches allows advantageously to run the starting process of assembling to internal-combustion engine from the electric running of parallel type hybrid dynamic drivetrain.
The feature of one preferred embodiment of this hydrostatic clutch operating system is, the hydraulic path of branch comprises the first branch and the second branch, and these branches are hydrostatically connected with the first and second slave cylinders when centre is connected with control valve unit and can be connected with the first and second slave cylinders in other words.Control valve unit comprises at least one valve.Described valve is preferably leak free or leaks few valve.One of these two slave cylinders can be made as required hydraulically to be connected with hydraulic pressure set device by this control valve unit.In addition, described control valve unit can realize, and closes the branch road leading to that slave cylinder be not connected with hydraulic pressure set device, to keep current clutch state.
The feature of another preferred embodiment of this hydrostatic clutch operating system is, control valve unit is embodied as three six-way transfer valves.This control valve unit is preferably handled by electromagnetic ground.In the first switching position of this control valve unit, hydraulic pressure set device is preferably connected with one of described clutch (especially described cut-off clutch), and the state of another clutch (especially starting clutch) is kept.In the second switching position of this control valve unit, preferably, the state of described cut-off clutch is kept, and starting clutch is modulated by hydraulic pressure set device.In the 3rd switching position of this control valve unit, described cut-off clutch is preferably closed, and its mode is, the slave cylinder of subordinate is discharged in hydraulic medium container.Described starting clutch is modulated via described hydraulic pressure set device.
The feature of another preferred embodiment of this hydrostatic clutch operating system is, this control valve unit comprises two position three way directional control valve and bi-bit bi-pass selector valve.These two selector valves are all preferably handled by electromagnetic ground.This two position three way directional control valve is preferably connected between hydraulic pressure set device and this two slave cylinders.This bi-bit bi-pass selector valve is preferably connected between one of this two position three way directional control valve and these two slave cylinders (slave cylinder of especially described cut-off clutch).Advantageously, hydraulic medium container is engaged on the interface of this bi-bit bi-pass selector valve.
The feature of another preferred embodiment of this hydrostatic clutch operating system is, this hydraulic pressure set device is embodied as hydrostatic actuator.This hydrostatic actuator comprises such as motor, and described motor drives control active cylinder via gear arrangement, and this active cylinder hydrostatically can be connected with these two slave cylinders and connect in other words.This control valve unit is advantageously so connected between described active cylinder and this two slave cylinders, and these two clutches can be handled independently of each other.
The feature of another preferred embodiment of this hydrostatic clutch operating system is, this hydraulic pressure set device is embodied as oil hydraulic pump.This oil hydraulic pump is such as vane pump.
The feature of another preferred embodiment of this hydrostatic clutch operating system is, this hydraulic pressure set device is embodied as the oil hydraulic pump with two flow directions.On the first flow direction, this oil hydraulic pump can by hydraulic medium from hydraulic medium container transport to one of described slave cylinder.On the second flow direction, hydraulic medium can be got back to hydraulic medium container from the conveying of one of described slave cylinder by this oil hydraulic pump.This oil hydraulic pump with two flow directions is also referred to as reversing pump (Reversierpumpe).
The feature of another preferred embodiment of this hydrostatic clutch operating system is, these two clutches are embodied as normally closed type clutch.One of described clutch (especially starting clutch) preferably can be modulated.Another clutch (especially cut-off clutch) preferably can not be modulated.Can not can occupy only two states, especially open mode and closed state by modulated clutch.Clutch (especially cut-off clutch) that can not be modulated is advantageously embodied as pulsed clutch.
In a kind of parallel type hybrid dynamic drivetrain, it has: be connected to the cut-off clutch between internal-combustion engine and motor; Be connected to the starting clutch between this motor and speed changer; The clutch operating system before described, above-mentioned purpose alternatively, or additionally realizes in the following manner: the first slave cylinder is attached troops to a unit in described cut-off clutch, and the second slave cylinder is attached troops to a unit in described starting clutch.At this, these two slave cylinders are advantageously interconnected in this wise by control valve unit, and making to attach troops to a unit can by hydraulic pressure set device by with pressure-loaded or be discharged in hydraulic medium container in the slave cylinder of cut-off clutch.Control valve unit is advantageously implemented in this wise and is arranged, makes starting clutch can pass through attached troops to a unit slave cylinder modulated.The comfortable operation of parallel type hybrid dynamic drivetrain in a motor vehicle can be realized thus in a straightforward manner.
In a kind of method of the parallel type hybrid dynamic drivetrain for describing before running, above-mentioned purpose alternatively, or additionally realizes in the following manner: cut-off clutch and starting clutch are handled independently of each other by described hydraulic pressure set device.Especially advantageously, cut-off clutch is embodied as pulsed clutch.Cut-off clutch advantageously can only occupy two states, and that is cut-off clutch can be opened or close.Starting clutch is advantageously modulated by described hydraulic pressure set device.
Accompanying drawing explanation
Other advantage, characteristic sum details of the present invention is drawn by following explanation, in described explanation, describe different embodiments in detail with reference to accompanying drawing.Accompanying drawing illustrates:
Fig. 1: the simplicity of illustration of parallel type hybrid dynamic drivetrain;
Fig. 2: the first embodiment of hydrostatic clutch operating system, this hydrostatic clutch operating system has hydrostatic actuator and comprises the control valve unit of an only valve;
Fig. 3: the second embodiment of hydrostatic clutch operating system, this hydrostatic clutch operating system has the control valve unit comprising two valves; And
Fig. 4: the 3rd embodiment of hydrostatic clutch operating system, this hydrostatic clutch operating system has the reversing pump as hydraulic pressure set device.
Embodiment
The parallel type hybrid dynamic drivetrain 1 of Motor Vehicle is shown in FIG simplifiedly.This parallel type hybrid dynamic drivetrain 1 is the P2 mixed power system with internal-combustion engine 4 and motor 5.This motor 5 is connected between internal-combustion engine 4 and speed changer 8 according to driving.Internal-combustion engine 4 also can be described as explosive motor.Speed changer 8 is such as manual manual transmission.Speed changer 8 also can be embodied as automatic manual transmission.
Clutch 10 is connected between internal-combustion engine 4 and motor 5 in parallel type hybrid dynamic drivetrain 1.Clutch 10 is embodied as cut-off clutch.Clutch 11 is connected between motor 5 and speed changer 8 in parallel type hybrid dynamic drivetrain 1.Clutch 11 is embodied as starting clutch.
These two clutches 10 and 11 are handled relative to each other independently, to realize the comfortable operation of parallel type hybrid dynamic drivetrain 1 in a motor vehicle.The independence that these two clutches 10 are handled causes by the running condition of electric running, and wherein, not only the modulation that is closed but also starting clutch 11 of clutch 10 can must side by side be carried out in other words.
The independently manipulation of these two clutches 10 and 11 can such as by two independently hydrostatic actuator 14,15 realizations.At this, be disadvantageous for the system cost of these two actuators 14,15 and the hydraulic structure of complexity.An importance according to the present invention proposes, and handles this two clutches 10 and 11 by single hydraulic pressure set device, as rectangle 18 by a dotted line marks in FIG.
Independently handling of these two clutches 10 and 11 can be realized by the hydraulic path of branch and the combination of hydraulic pressure set device 18.At this, these two clutches 10 and 11 are embodied as normally closed type clutch.That is, these two clutches 10 and 11 such as by corresponding spring assembly by pretension in the operating position of its transmitting torque.Rotate to transmit and be interrupted by opening of clutch 10,11.
The embodiment of three different hydrostatic clutch operating systems shown in Fig. 2 to 4, can these two clutches 10 and 11 of parallel type hybrid dynamic drivetrain 1 independently of one another shown in control diagram 1 by described hydrostatic clutch operating system.At this, cut-off clutch 10 is advantageously embodied as pulsed clutch.
This pulsed clutch only can occupy two finite-states.This pulsed clutch or to open or closed.On the contrary, starting clutch 11 is embodied as and wants modulating type clutch.By the control to this starting clutch 11, the torque energy transmitted by this starting clutch 11 is during starts conditioned.
First slave cylinder 21 and the second slave cylinder 22 is shown simplifiedly in Fig. 2 to 4.This first slave cylinder 21 is attached troops to a unit in cut-off clutch 10.This second slave cylinder 22 is attached troops to a unit in starting clutch 11.
In the embodiment shown in Fig. 2 and 3, these two clutches 11 and 12 can be handled by single hydraulic pressure set device 26 via slave cylinder 21,22.This hydraulic pressure set device 26 is embodied as hydrostatic actuator 27.
In the embodiment show in figure 4, these two clutches 10 and 11 are handled by single hydraulic pressure set device 46 via slave cylinder 21,22.This hydraulic pressure set device 46 is embodied as the oil hydraulic pump 48 with two flow directions.
Be the state table of the difference in functionality with the hydrostatic clutch operating system shown in Fig. 2 below:
V29 Clutch 10 Clutch 11 Function
1 Open Keep Be transitioned into electric running
2 Keep Modulation Normal operation
3 Closed Modulation Start internal-combustion engine
In the embodiment illustrated in figure 2, hydraulic pressure set device 26 is connected with these two slave cylinders 21,22 via the hydraulic path 25 of branch.The hydraulic path 25 of this branch comprises the first branch 23 be engaged on the first slave cylinder 21.Second branch 24 of the hydraulic path 25 of this branch is engaged on the second slave cylinder 22.In the hydraulic path 25 of this branch, between hydraulic pressure set device 26 and this two slave cylinders 21,22, be connected with control valve unit 29.This control valve unit 29 is embodied as three six-way transfer valves with six interfaces and three switching positions.
In the first switching position of the control valve unit 29 shown in Fig. 2, hydraulic pressure set device 26 is connected with the first slave cylinder 21 via the first branch 23.In this switching position, interrupted by control valve unit 29 with the connection of the second branch 24.Hydraulic connecting to hydraulic medium container 28 is also interrupted by control valve unit 29.
In the first switching position of control valve unit 29, cut-off clutch 10 is opened via the first slave cylinder 21.Under starting clutch 11 is maintained at its current state via the second slave cylinder 22 with the branch 24 of interrupting.Thus, can realize being transitioned into electric running, that is realize the de-coupling of internal-combustion engine.Alternatively, or additionally, can realize reclaiming operation or regeneration operation.
In second or middle switching position of control valve unit 29, hydraulic pressure set device 26 is connected with the second slave cylinder 22 via the second branch 24.The connection of the first branch 23 is interrupted by control valve unit 29.Connection to hydraulic medium container 28 is also interrupted.
In the second switching position of control valve unit 29, cut-off clutch 10 is maintained in its current location.Starting clutch 11 by via hydraulic pressure set device 26, second branch 24 and slave cylinder 22 modulated.Thus, the normal operation of this parallel type hybrid dynamic drivetrain 1 can be realized.
In normal operation, when cut-off clutch 10 closes, the hybrid power comprising multiple shift process that can realize with internal-combustion engine 4 and motor 5 runs.When cut-off clutch 10 is opened, the electric running that can realize comprising shift process runs or reclaims and runs.
In the 3rd switching position of control valve unit 29, the first slave cylinder 21 is unloaded in hydraulic medium container 28, and cut-off clutch 10 is closed.Hydraulic pressure set device 26 is connected with the second slave cylinder 22 with the second branch 24 via control valve unit 29, makes starting clutch 11 modulated.Via closed cut-off clutch 10, internal-combustion engine 4 can be drawn by motor 5, can realize restarting of internal-combustion engine 4.
In the embodiment show in figure 3, hydraulic pressure set device 26 is connected with two slave cylinders 21,22 with the branch hydraulic path 35 of the second branch 34 via having the first branch 33.First branch 33 is engaged on the first slave cylinder 21.Second branch 34 is engaged on the second slave cylinder 22.Control valve unit 39 is connected between hydraulic pressure set device 26 and this two slave cylinders 21,22.
Be different from the embodiment shown in Fig. 2, this control valve unit 39 comprises two position three way directional control valve 36 and bi-bit bi-pass selector valve 38.Hydraulic pressure set device 26 is engaged on two position three way directional control valve 36.In addition, this Liang Ge branch 33 and 34 is engaged on two position three way directional control valve 36.Second branch 34 is directly connected on the second slave cylinder 22.Bi-bit bi-pass selector valve 38 is connected between the first branch 33 and hydraulic medium container 28.
Be the state table of the difference in functionality with the hydrostatic clutch operating system shown in Fig. 3 below:
V38 V36 Clutch 10 Clutch 11 Function
1 2 Open Keep Be transitioned into electric running
1 2 Keep Modulation Normal operation
0 3 Closed Modulation Start internal-combustion engine
Three switching positions of this control valve unit 39 of following explanation, can realize the function as the control valve unit 29 shown in Fig. 2 by described three switching positions.In the first switching position of control valve unit 39, the first slave cylinder 21 is connected with hydraulic pressure set device 26 via valve 36, and wherein, the connection to hydraulic medium container 28 is interrupted by valve 36.Therefore, cut-off clutch 10 is opened.Second branch 34 is interrupted by valve 36, and starting clutch 11 is kept.
In the second switching position of control valve unit 39, the first branch 33 keeps interrupting by valve 36 and 38, and cut-off clutch 10 is kept.Second slave cylinder 22 is connected with hydraulic pressure set device 26 with valve 36 via the second branch 34, makes starting clutch 11 modulated.
In the 3rd switching position of control valve unit 39, the first slave cylinder 21 is unloaded in hydraulic medium container 28 via valve 38, and cut-off clutch 10 is closed.Hydraulic pressure set device 26 is connected with the second slave cylinder 22 with valve 36 via the second branch 35, makes starting clutch 11 modulated.
The difference of the embodiment shown in the embodiment shown in Fig. 4 and Fig. 3 is only, hydraulic pressure set device 46 is embodied as oil hydraulic pump 48 and applies.This oil hydraulic pump 48 can run and be also referred to as reversing pump on two contrary flow directions.
Oil hydraulic pump 48 is driven by motor 49.On the first flow direction, hydraulic medium is transported to one of these two slave cylinders 21,22 from hydraulic medium container 28 by oil hydraulic pump 48.On the second flow direction, hydraulic medium is transported in hydraulic medium container 28 from one of these two slave cylinders 21,22 by oil hydraulic pump 48.
These two valves 36 and 38 shown in Fig. 3 and 4 can advantageously run in each two stable switching position positions.Preferably, valve 36 and 38 is implemented in this wise, makes them under non-maneuver (unbestromten) state that energy is favourable, run the time of largest portion.Valve 38 is advantageously embodied as seat valve, and leakage when running to make control valve unit 39 minimizes.
Control valve unit 29; 39 are advantageously integrated in this hydraulic pressure set device 26; In housing in 46.This provides following advantage: can cancel the additional housing for control valve unit and link.
reference numerals list
1 parallel type hybrid dynamic drivetrain
4 internal-combustion engines
5 motors
8 speed changers
10 (cut-off clutch) clutch
11 (starting clutch) clutch
14 hydrostatic actuators
15 hydrostatic actuators
18 rectangles
21 first slave cylinders
22 second slave cylinders
23 first branches
24 second branches
The hydraulic path of 25 branches
26 hydraulic pressure set devices
27 hydrostatic actuators
28 containers
29 control valve units
33 first branches
34 second branches
The hydraulic path of 35 branches
36 two position three way directional control valves
38 bi-bit bi-pass selector valves
39 control valve units
46 hydraulic pressure set devices
48 oil hydraulic pumps
49 motor

Claims (10)

1. hydrostatic clutch operating system, it has the first (21) and second (22) slave cylinder that can hydrostatically handle, by described slave cylinder, two clutches (10,11) can be handled independently of each other, it is characterized in that, these two slave cylinders that can hydrostatically handle (21,22) are via the hydraulic path (25 of branch; 35) hydrostatically with an only hydraulic pressure set device (26; 46) connect.
2. hydrostatic clutch operating system according to claim 1, is characterized in that, the hydraulic path (25) of described branch comprises first (23; 33) and the second (24; 34) branch, described branch is connected with control valve unit (29 in centre; 39) be hydraulically connected with the first (21) and second (22) slave cylinder when and can connect in other words.
3. hydrostatic clutch operating system according to claim 2, is characterized in that, described control valve unit (29) is embodied as three six-way transfer valves.
4. hydrostatic clutch operating system according to claim 2, is characterized in that, described control valve unit (39) comprises two position three way directional control valve (36) and bi-bit bi-pass selector valve (38).
5. the hydrostatic clutch operating system according to any one of the preceding claims, is characterized in that, described hydraulic pressure set device (26) is embodied as hydrostatic actuator (27).
6. hydrostatic clutch operating system according to any one of claim 1 to 4, is characterized in that, described hydraulic pressure set device (46) is embodied as oil hydraulic pump.
7. hydrostatic clutch operating system according to any one of claim 1 to 4, is characterized in that, described hydraulic pressure set device (46) is embodied as the oil hydraulic pump with two flow directions.
8. the hydrostatic clutch operating system according to any one of the preceding claims, is characterized in that, these two clutches (10,11) are embodied as normally closed type clutch.
9. parallel type hybrid dynamic drivetrain, it has: be connected to the cut-off clutch (10) between internal-combustion engine (4) and motor (5); Be connected to the starting clutch (11) between described motor (5) and speed changer (8); And the hydrostatic clutch operating system according to any one of the preceding claims, it is characterized in that, described first slave cylinder (21) is attached troops to a unit in described cut-off clutch (10), further, described second slave cylinder (22) is attached troops to a unit in described starting clutch (11).
10. for running the method for parallel type hybrid dynamic drivetrain (1) according to claim 9, it is characterized in that, described cut-off clutch (10) and described starting clutch (11) are by described hydraulic pressure set device (26; 46) handled independently of each other.
CN201480023178.6A 2013-04-25 2014-04-25 Hydrostatic clutch control system Pending CN105143700A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013207548 2013-04-25
DE102013207548.0 2013-04-25
PCT/DE2014/200185 WO2014173413A1 (en) 2013-04-25 2014-04-25 Hydrostatic clutch actuation system

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DE (2) DE112014002121A5 (en)
WO (1) WO2014173413A1 (en)

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Application publication date: 20151209