WO2014139744A1 - Antriebsstrang für ein fahrzeug und verfahren zum durchführen eines lastwechsels - Google Patents
Antriebsstrang für ein fahrzeug und verfahren zum durchführen eines lastwechsels Download PDFInfo
- Publication number
- WO2014139744A1 WO2014139744A1 PCT/EP2014/052684 EP2014052684W WO2014139744A1 WO 2014139744 A1 WO2014139744 A1 WO 2014139744A1 EP 2014052684 W EP2014052684 W EP 2014052684W WO 2014139744 A1 WO2014139744 A1 WO 2014139744A1
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- WIPO (PCT)
- Prior art keywords
- switching element
- gear
- frictional
- drive train
- load
- Prior art date
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Classifications
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- 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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
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- 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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/12—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with means for synchronisation not incorporated in the clutches
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
- F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
- F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
- F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
- F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
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- 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
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/001—Arrangement or mounting of electrical propulsion units one motor mounted on a propulsion axle for rotating right and left wheels of this axle
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H2003/0818—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts comprising means for power-shifting
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H2003/0826—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts wherein at least one gear on the input shaft, or on a countershaft is used for two different forward gear ratios
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0407—Synchronisation before shifting by control of clutch in parallel torque path
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H2061/047—Smoothing ratio shift by preventing or solving a tooth butt situation upon engagement failure due to misalignment of teeth
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- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H2061/0474—Smoothing ratio shift by smoothing engagement or release of positive clutches; Methods or means for shock free engagement of dog clutches
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2033—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with one engaging means
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2064—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using at least one positive clutch, e.g. dog clutch
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- 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
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2094—Transmissions using gears with orbital motion using positive clutches, e.g. dog clutches
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- 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
- F16H—GEARING
- F16H2306/00—Shifting
- F16H2306/40—Shifting activities
- F16H2306/46—Uncoupling of current gear
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- 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
- F16H—GEARING
- F16H2306/00—Shifting
- F16H2306/40—Shifting activities
- F16H2306/50—Coupling of new gear
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- 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
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/089—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
Definitions
- the present invention relates to a drive train for a vehicle according to the closer defined in the preamble of claim 1. Art Furthermore, the invention relates to methods for performing a load change between a frictional engagement element and a positive switching element, in particular in the drive train according to the invention.
- the powertrain includes an electric motor and a two-speed transmission having two idler gears rotatably mounted on a shaft and shiftable by two associated multi-plate clutches to transmit torque to an inter-axle differential for driving the vehicle.
- frictionally engaged shift elements are designed as open-type or normally open multi-plate clutches, for safety reasons. opened by spring force, designed to prevent blocking of the gearbox by two simultaneously engaged gears in case of failure of the actuators.
- the object of the present invention is to propose a drive train and method of the genera described in the introduction. conditions in which load circuits are safe and feasible with the highest possible efficiency.
- a drive train for a vehicle in particular for a motor vehicle with at least one electric drive, which can be coupled via a drive shaft with at least a first gear ratio and a second gear ratio.
- the translation stages is assigned at least one switching device for switching the gear ratios.
- a form-locking switching element and at least one frictional switching element are provided as the switching device.
- each of the gear ratios can be shifted with the interlocking shift element and that at least one of the gear ratios can be shifted both with the interlocking shift element and with the frictional shift element.
- a quasi doubly executed switching device with a positive and a frictional switching element is used, wherein the load circuit is performed by means of frictional engagement element and after completion of the circuit, the positive switching element can take over the efficiency-optimized torque transmission.
- the powertrain is not limited to two-speed gearboxes. It is readily possible to provide other wheel planes or planetary gear sets with other switching elements. For example, a pre-translation or the like may be arranged between the drive and the drive shaft, thereby lowering the speed level at the drive shaft.
- the proposed gear ratios in the drive train according to the invention can be designed as a spur gear, planetary gear or the like.
- a positive switching element may preferably be provided a dog clutch, which is preferably designed as a double clutch to realize next to the neutral position two other switching positions. It is also conceivable that single-acting switching elements are used.
- frictional switching element can preferably be used a multi-plate clutch, which is kept open in its unactuated starting position, for example by spring force. There are also other multi-plate clutches used.
- the meshing movement can be monitored by means of a displacement sensor.
- the frictional switching element can be opened when a complete meshing is detected due to the detected meshing movement. If e.g. due to the detected meshing movement a tooth-on tooth position is detected in the form-locking switching element, the frictional switching element for generating a differential speed can be opened slowly. After generating a differential speed, the closing of the form-fitting switching element is performed again and then the frictional switching element is opened when the meshing movement is completed. As an emergency measure, to release a tooth-to-tooth position, a load reduction for complete meshing can be performed.
- the positive-locking switching element can be opened again and then the frictional switching element for producing a slip condition are partially opened and then closed again, so that a reorientation in the form-fitting switching element for dissolving the tooth-on tooth position is achieved.
- a strategic decision can be made as to whether the frictionally engaged switching element or the friction clutch remains closed at the expense of the actuator losses in the second gear stage or whether the changeover from the frictionally engaged shifting element to the interlocking shifting element is to take place.
- a forward-looking strategy in the context of the method can provide that the performance of a load change is carried out as a function of an evaluation of vehicle data and / or topography data.
- a further alternative method may provide that the frictional engagement element is kept closed after a gear change until a load reduction or a load change from tensile load to thrust load is performed, to then perform a load-free load change between the frictional engagement element and the interlocking shift element.
- Figure 1 is a schematic view of a first embodiment of a drive train according to the invention with the drive shaft side switchable spur gears as gear ratios;
- Figure 2 is a schematic view of a second embodiment of the drive train with intermediate shaft side switchable spur gears as translation stages;
- Figure 3 is a schematic view of a third embodiment of the drive train with designed as a planetary gear ratio stages;
- Figure 4 is a schematic view of a fourth embodiment of the drive train with two the gear ratio associated frictional switching elements;
- FIG. 5 is a schematic view with different states, in which various methods of the invention are described.
- the drive train includes as an electrical drive an electric machine EM, which drives a drive shaft 2 directly or via a pre-translation 1. Furthermore, at least two gear ratios i1 and i2 are provided, which are connected via an intermediate shaft 3 to an output differential 4 of the vehicle in order to drive the drive wheels of the vehicle.
- the gear ratios i1, i2 are associated with a switching device which includes both a positive switching element 5 and a frictional switching element 6 for carrying out load switching.
- a first embodiment of the drive train according to the invention is shown, in which the gear ratios i1 and i2 are designed as spur gears.
- a idler gear 7 of the first gear ratio i1 and a idler gear 8 of the second gear ratio i2 are associated with the drive shaft 2 and can be connected via the positive switching element 5 to the drive shaft 2.
- the idler gear 7 and in the switching position B the idler gear 8 is connected to the drive shaft 2.
- the fixed gear 9 of the first gear ratio i1 and the fixed gear 10 of the second gear ratio i2 are connected via the intermediate shaft 3 to the output differential 4 for driving the drive wheels of the vehicle.
- the idler gear 8 of the second gear ratio i2 are also connected to the drive shaft 2 to allow load switching.
- 2 shows a second embodiment variant of the drive train, in which, unlike the first embodiment according to Figure 1, the idler gears 7, 8 of the two gear ratios i1 and i2 of the intermediate shaft 3 are assigned, so that these also the intermediate shaft 3 associated switching elements and 6 are switchable. This results in the advantage that the spur gears of the gear ratios i1 and i2 can have larger diameters.
- a train-high circuit of the translation stage i1 to the second translation stage i2 effected by the load transfer takes place by the frictional switching element 6 and the positive switching element 5 is moved from its switching position A in the neutral position to a To allow speed adjustment or Drehieresynchroni- tion by the frictional switching element 6 until the switching element 6 is closed.
- the positive switching element 5 can be moved to the switching position B and the frictional switching element 6 can be opened slowly to realize the torque transmission exclusively via the positive switching element 5.
- the frictional switching element 6 can be opened slowly to allow a meshing in the presence of a speed difference.
- this is actuated only briefly, thereby generating only small actuation losses.
- a third embodiment of the drive train is shown, in which the ratio stages i1, i2 are realized by a planetary gear 1 1.
- the sun gear 12 of the planetary gear 1 1 is connected to the drive shaft 2.
- the planet carrier 13 of the planetary gear 1 1 is connected to an output stage 14, which is connected via the intermediate shaft 3 to the output differential 4.
- the planet carrier 13 is further connected via the frictional switching element 6 to the drive shaft 2.
- the ring gear 15 of the planetary gear 1 1 is connectable via the positive switching element 5 to the drive shaft 2 in the switching position B or in the switching position A with the housing 1 6.
- the two gear ratios i1, i2 are realized via the planetary gear 1 1.
- the second gear can be switched both via the positive switching element 5 and via the frictional switching element 6.
- the positive switching element 5 and the frictional switching element 6 different shafts are connected to each other in this embodiment, both act on the same gear, so that a block circulation in the planetary gear 1 1 can be realized.
- FIG. 4 shows a fourth variant embodiment in which, in contrast to the first embodiment variant according to FIG. 1, a further frictional switching element 6A is provided so that full load switching capability can be realized, since all the circuits can be implemented by means of the two frictional switching elements 6, 6A. so that also push-downshifts for recuperation can be performed load switchable.
- a modular concept can be realized by the structural design of the proposed drive train.
- state 1 the frictional switching element 6, 6 A can be opened.
- state 2 a slow opening of the frictional switching element 6, 6 A, so that a differential speed is formed.
- a load-free meshing in the dog clutch can be achieved as long as enough clearance is available until the next tooth flank.
- the return of the load to the electric drive EM can be provided for complete meshing, if the dog clutch should not fully engage. This is an emergency measure in rare cases at the expense of a very short interruption of traction.
- state 3 the actuator is moved back so that the jaws of the dog clutch no longer touch.
- the frictional engagement element 6 may remain closed.
- the evaluation of vehicle data for example the calculation of the driving resistance due to an acceleration balance or the additional evaluation of topographical data can be used.
- the frictional switching element 6 remain closed after a shift from the first to the second gear until a load reduction or a load change from tensile load to thrust load by the driver. Then a load-free change of the frictional switching element 6 on the positive switching element 5 is possible without the driver perceives this.
- the positive-locking switching element 5 or the shift claw can be meshed easily without load.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
- Control Of Transmission Device (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US14/774,224 US9822860B2 (en) | 2013-03-12 | 2014-02-12 | Powertrain for a vehicle and method for carrying out load changes |
JP2015561993A JP6374890B2 (ja) | 2013-03-12 | 2014-02-12 | 車両用ドライブトレインおよびパワー変更の実行方法 |
CN201480013049.9A CN105189165B (zh) | 2013-03-12 | 2014-02-12 | 针对车辆的传动系和用于执行负载变换的方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102013204227.2A DE102013204227A1 (de) | 2013-03-12 | 2013-03-12 | Antriebsstrang für ein Fahrzeug und Verfahren zum Durchführen eines Lastwechsels |
DE102013204227.2 | 2013-03-12 |
Publications (1)
Publication Number | Publication Date |
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WO2014139744A1 true WO2014139744A1 (de) | 2014-09-18 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/EP2014/052684 WO2014139744A1 (de) | 2013-03-12 | 2014-02-12 | Antriebsstrang für ein fahrzeug und verfahren zum durchführen eines lastwechsels |
Country Status (5)
Country | Link |
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US (1) | US9822860B2 (de) |
JP (1) | JP6374890B2 (de) |
CN (1) | CN105189165B (de) |
DE (1) | DE102013204227A1 (de) |
WO (1) | WO2014139744A1 (de) |
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- 2013-03-12 DE DE102013204227.2A patent/DE102013204227A1/de active Pending
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2014
- 2014-02-12 JP JP2015561993A patent/JP6374890B2/ja active Active
- 2014-02-12 WO PCT/EP2014/052684 patent/WO2014139744A1/de active Application Filing
- 2014-02-12 CN CN201480013049.9A patent/CN105189165B/zh active Active
- 2014-02-12 US US14/774,224 patent/US9822860B2/en active Active
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Cited By (34)
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WO2015014453A1 (de) * | 2013-08-01 | 2015-02-05 | Thyssenkrupp Presta Teccenter Ag | Schaltgetriebe für eine antriebseinheit eines elektrofahrzeugs und verfahren zum betrieb des schaltgetriebes |
CN104534037A (zh) * | 2014-12-26 | 2015-04-22 | 北京航空航天大学 | 纯电动汽车用两挡自动变速器 |
JP2016148389A (ja) * | 2015-02-12 | 2016-08-18 | 愛知機械工業株式会社 | 変速装置および電気自動車 |
CN106168285A (zh) * | 2015-05-20 | 2016-11-30 | 现代自动车株式会社 | 用于电动车辆的换挡控制方法 |
JP2020528529A (ja) * | 2017-07-27 | 2020-09-24 | ジン−ジン エレクトリック テクノロジーズ カンパニー リミテッド | 横置型車両用駆動アセンブリ |
US11162562B2 (en) | 2017-07-27 | 2021-11-02 | Jing-Jin Electric Technologies Co., Ltd. | Transversely-placed vehicle driving assembly |
DE102021208550A1 (de) | 2021-08-06 | 2023-02-09 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
US11761521B2 (en) | 2021-08-06 | 2023-09-19 | Zf Friedrichshafen Ag | Gear unit and powertrain for a vehicle |
DE102021208564B3 (de) | 2021-08-06 | 2022-12-08 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
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DE102021208556A1 (de) | 2021-08-06 | 2023-02-09 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
DE102021208554A1 (de) | 2021-08-06 | 2023-02-09 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
DE102021208568A1 (de) | 2021-08-06 | 2023-02-09 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
DE102021208560B3 (de) | 2021-08-06 | 2022-12-08 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
US11738633B2 (en) | 2021-08-06 | 2023-08-29 | Zf Friedrichshafen Ag | Gear unit and powertrain for a vehicle |
US11752849B2 (en) | 2021-08-06 | 2023-09-12 | Zf Friedrichshafen Ag | Gear unit and powertrain for a vehicle |
DE102021208567B3 (de) | 2021-08-06 | 2022-12-08 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
US11807102B2 (en) | 2021-08-06 | 2023-11-07 | Zf Friedrichshafen Ag | Gear unit and powertrain for a vehicle |
WO2023208545A1 (de) | 2022-04-29 | 2023-11-02 | Zf Friedrichshafen Ag | Getriebe und antriebsstrang für ein fahrzeug |
DE102022204227A1 (de) | 2022-04-29 | 2023-11-02 | Zf Friedrichshafen Ag | Getriebe und Antriebsstrang für ein Fahrzeug |
US20240068560A1 (en) * | 2022-07-01 | 2024-02-29 | Dana Graziano S.R.L. | Two speed automatic transmission with a friction and dynamically controllable one way clutch for power shifting in an electric vehicle |
DE102022208154A1 (de) | 2022-08-05 | 2024-02-08 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022208153A1 (de) | 2022-08-05 | 2024-02-08 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022208157A1 (de) | 2022-08-05 | 2024-02-08 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022208156A1 (de) | 2022-08-05 | 2024-02-08 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
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DE102022208150A1 (de) | 2022-08-05 | 2024-02-08 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022209068A1 (de) | 2022-08-31 | 2024-02-29 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022209070A1 (de) | 2022-08-31 | 2024-02-29 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022209069A1 (de) | 2022-08-31 | 2024-02-29 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
DE102022209071A1 (de) | 2022-08-31 | 2024-02-29 | Zf Friedrichshafen Ag | Elektrische Antriebsvorrichtung für ein Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
US20160017968A1 (en) | 2016-01-21 |
DE102013204227A1 (de) | 2014-09-18 |
CN105189165B (zh) | 2017-11-21 |
JP6374890B2 (ja) | 2018-08-15 |
CN105189165A (zh) | 2015-12-23 |
JP2016516161A (ja) | 2016-06-02 |
US9822860B2 (en) | 2017-11-21 |
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