DE10203514A1 - Intermediate gear change box for transferring torque in an internal combustion engine to a motor vehicle has a layshaft under load and an auxiliary layshaft linked to a gearbox feed shaft - Google Patents

Intermediate gear change box for transferring torque in an internal combustion engine to a motor vehicle has a layshaft under load and an auxiliary layshaft linked to a gearbox feed shaft

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Publication number
DE10203514A1
DE10203514A1 DE10203514A DE10203514A DE10203514A1 DE 10203514 A1 DE10203514 A1 DE 10203514A1 DE 10203514 A DE10203514 A DE 10203514A DE 10203514 A DE10203514 A DE 10203514A DE 10203514 A1 DE10203514 A1 DE 10203514A1
Authority
DE
Germany
Prior art keywords
gear
clutch
countershaft
auxiliary
internal combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE10203514A
Other languages
German (de)
Inventor
Christoph Woernle
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE10203514A priority Critical patent/DE10203514A1/en
Priority to IT000129A priority patent/ITMI20030129A1/en
Priority to JP2003020623A priority patent/JP2003232412A/en
Priority to FR0301045A priority patent/FR2835301B1/en
Priority to ES200300234A priority patent/ES2239498A1/en
Publication of DE10203514A1 publication Critical patent/DE10203514A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • 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
    • F16H3/126—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 using an electric drive
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
    • 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
    • B60K6/26—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 motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • 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
    • B60K2006/4808—Electric machine connected or connectable to gearbox output shaft
    • 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
    • B60K2006/4816—Electric machine connected or connectable to gearbox internal shaft
    • 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
    • F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
    • F16H2003/007—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths with two flow paths, one being directly connected to the input, the other being connected to the input though a clutch
    • 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
    • F16H2200/0056—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising seven forward speeds
    • 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
    • F16H3/093—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 with two or more countershafts
    • F16H3/097—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 with two or more countershafts the input and output shafts being aligned on the same axis
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A disk clutch (20) ensures linkage between an auxiliary layshaft (28) and a gearbox feed shaft (23) and fits coaxially to the gearbox feed shaft. An electric motor (12) with a battery (14) links to the auxiliary layshaft. A starter motor/generator fits directly on an internal combustion engine (10) and friction synchronous clutches fit on the auxiliary layshaft.

Description

Die Erfindung betrifft ein Vorgelege-Wechselgetriebe für ein Kraftfahrzeug zur Übertragung eines Drehmoments eines Verbrennungsmotors auf das Kraftfahrzeug. The invention relates to a countershaft transmission for a motor vehicle for transmitting a torque Internal combustion engine on the motor vehicle.

Stand der TechnikState of the art

Aus dem Stand der Technik sind unter Last schaltbare Doppelkupplungs-Wechselgetriebe bekannt, die zwei Getriebe- Eingangswellen und eine Getriebe-Ausgangswelle aufweisen. Jeder Eingangswelle ist bei diesen eine Reibkupplung zugeordnet, wobei eine der beiden Kupplungen im Haftzustand ein Motormoment überträgt und die andere Kupplung geöffnet ist. From the prior art are switchable under load Double clutch change gear known, the two gear Have input shafts and a transmission output shaft. Each input shaft is a friction clutch assigned, with one of the two clutches in detention transmits an engine torque and opens the other clutch is.

Aus der Druckschrift DE 199 03 936 A1 ist ein Getriebe bekannt, das zwei Planeten-Getriebe aufweist, deren Hohlräder mittels eines Zahnkranzes mit der Kurbelwelle eines Verbrennungsmotors verbunden sind. Jedes Planeten- Getriebe ist mit jeweils einer Getriebe-Welle gekoppelt, auf der Eingangszahnräder für verschiedene Getriebeübersetzungen angeordnet sind. Die ein Drehmoment eines Verbrennungsmotors einleitende Eingangswelle ist mit wenigstens einem Umlaufgetriebe gekoppelt. Weiterhin ist eine mit wenigstens einem Umlaufgetriebe gekoppelte Ausgangswelle vorgesehen sowie zwei mit dem wenigstens einen Umlaufgetriebe in Wirkverbindung stehende Elektromaschinen. Die beiden Elektromaschinen sind mit jeweils einem separaten Umlaufgetriebe gekoppelt. Die Elektromaschinen sind weder an die Eingangswelle noch an die Ausgangswelle gekoppelt. Die Drehzahlen der beiden Elektromaschinen sind unabhängig voneinander veränderbar. A transmission is known from the publication DE 199 03 936 A1 known, which has two planetary gears, the Ring gears by means of a ring gear with the crankshaft an internal combustion engine are connected. Every planet Gearbox is coupled to a gearbox shaft, on the input gears for different Gear ratios are arranged. The one torque of an internal combustion engine introducing input shaft is with coupled at least one epicyclic gear. Furthermore is one coupled with at least one epicyclic gear Output shaft provided and two with the least an epicyclic gear operatively connected Electric machines. The two electric machines are with each coupled to a separate epicyclic gear. The Electric machines are neither on the input shaft nor on coupled the output shaft. The speeds of the two Electric machines can be changed independently of each other.

Aus der Druckschrift DE 195 48 622 C1 ist ein unter Last schaltbares Wechselgetriebe mit zwei Getriebe- Eingangswellen und einer Getriebe-Ausgangswelle sowie einer Reibungshauptkupplung bekannt, wobei die erste Getriebe- Eingangswelle direkt mit der Antriebsmaschine verbunden ist und die Hauptkupplung zwischen der Antriebsmaschine und der zweiten Getriebe-Eingangswelle angeordnet ist. Das Eingangselement der von einem Antriebsmotor getriebenen Reibungskupplung ist mit der ersten Getriebe-Eingangswelle verbindbar und das Ausgangselement der Reibungskupplung ist mit einer zweiten Getriebe-Eingangswelle in Form einer Hohlwelle verbindbar. Auf der ersten Getriebe-Eingangswelle sind im wesentlichen Festräder angeordnet, die mit auf einer Vorgelegewelle angeordneten Losrädern in ständigem Eingriff stehen. Zwischen paarweise angeordneten Losrädern sind Synchronkupplungen zum Schalten der verschiedenen Gangstufen angeordnet. Mit der zweiten als Hohlwelle ausgebildeten Getriebe-Eingangswelle ist der Zahnrädersatz des fünften Ganges verbunden. Die erste Getriebe- Eingangswelle ist durch eine schaltbare formschlüssige Kupplung mit der Getriebe-Hauptwelle verbunden, die mit Ausnahme des höchsten Ganges die Festräder der Gangstufen trägt. Die Losräder sind auf einer die Getriebe- Ausgangswelle bildenden Vorgelegewelle angeordnet, wobei zwischen den Losrädern bekannte Synchronkupplungen mit Schiebehülsen angeordnet sind, um die verschiedenen Gangstufen zu schalten. Das Radpaar der höchsten Gangstufe besteht aus einem Losrad auf der Getriebehauptwelle und einem Festrad auf der Vorgelegewelle. Die zweite Getriebe- Eingangswelle kann durch eine schaltbare Synchronkupplung entweder mit der Getriebe-Hauptwelle oder mit dem Losrad der höchsten Gangstufe verbunden werden. From document DE 195 48 622 C1 is under load switchable change gear with two gear Input shafts and a transmission output shaft and one Main friction clutch known, the first transmission Input shaft is connected directly to the engine and the main clutch between the engine and the second transmission input shaft is arranged. The Input element of those driven by a drive motor Friction clutch is with the first transmission input shaft connectable and the output element of the friction clutch is with a second transmission input shaft in the form of a Hollow shaft connectable. On the first transmission input shaft are essentially fixed wheels arranged with on a countershaft arranged loose wheels in constant Stand by. Between loose wheels arranged in pairs are synchronous clutches for switching the various Gear steps arranged. With the second as a hollow shaft trained gear input shaft is the gear set of the fifth gear. The first gear Input shaft is by a switchable positive Coupling connected to the gearbox main shaft with Except for the highest gear, the fixed gears of the gear steps wearing. The idler gears are on a Output shaft forming countershaft arranged, wherein known synchromesh clutches between the idler gears Sliding sleeves are arranged to the different To shift gears. The top pair of wheels consists of an idler gear on the main transmission shaft and a fixed gear on the countershaft. The second gear Input shaft can be switched by a synchronous clutch either with the main transmission shaft or with the idler gear the highest gear.

Zum Anfahren des Fahrzeugs aus dem Stand ist die Gangkupplung des ersten Ganges auf der Vorgelegewelle geschlossen und die Getriebe-Hauptwelle durch die Synchronkupplung mit dem Ausgangselement der Hauptkupplung verbunden. Nach Erreichen des Haftzustandes der Hauptkupplung wird die Hauptwelle durch Schließen der Klauenkupplung mit der Verbrennungsmaschine verbunden und die Synchronkupplung geschaltet, so daß diese das Ausgangselement der Hauptkupplung mit dem Losrad der höchsten Gangstufe verbindet. Zum Schalten vom ersten in den zweiten Gang wird die Hauptkupplung so beaufschlagt, daß die erste Gangstufe entlastet wird und die Gangkupplung des ersten Ganges geöffnet werden kann. Bei gleitender Hauptkupplung wird die Motordrehzahl abgesenkt, bis die Gangkupplung des zweiten Ganges synchronisiert ist und geschlossen werden kann. Anschließend wird die Hauptkupplung wieder geöffnet und der Lastfluß auf das Radpaar des zweiten Gangs umgelagert. Entsprechend können auch alle anderen Gangstufen geschaltet werden. To start the vehicle from a standing start Gear clutch of the first gear on the countershaft closed and the transmission main shaft through the Synchronous clutch with the output element of the main clutch connected. After reaching the state of detention The main clutch becomes the main shaft by closing the Claw coupling connected to the internal combustion engine and the synchronizer clutch switched so that this Output element of the main clutch with the idler gear connects highest gear. For switching from the first in the main clutch is acted on in second gear, that the first gear is relieved and the gear clutch of the first course can be opened. With sliding The main clutch will lower the engine speed until the Gear clutch of the second gear is synchronized and can be closed. Then the Main clutch opened again and the load flow on the Rearranged pair of wheels of the second gear. Can accordingly all other gears can also be shifted.

Nachteilig bei solchen Doppelkupplungsgetrieben ist der erhebliche Platzbedarf und der große Herstellungsaufwand. The disadvantage of such double clutch transmissions is considerable space requirement and the large manufacturing effort.

Vorteile der ErfindungAdvantages of the invention

Demgegenüber weist das erfindungsgemäße Vorgelege- Wechselgetriebe eine Last-Vorgelegewelle und eine Hilfs- Vorgelegewelle auf, die mit der Eingangswelle des Getriebes verbindbar ist. Über die Eingangswelle wird das Drehmoment des Verbrennungsmotors in das Getriebe eingeleitet. Die Hilfs-Vorgelegewelle ist derart ausgestaltet, daß diese ein zusätzliches Moment einleiten kann, d. h. daß die Hilfs- Vorgelegewelle ein zusätzliches Moment zum Antreiben des Fahrzeuges bereitstellen kann. In contrast, the countershaft according to the invention Change gear a load countershaft and an auxiliary Lay shaft on that with the input shaft of the transmission is connectable. The torque is via the input shaft of the internal combustion engine introduced into the transmission. The Auxiliary countershaft is designed such that this one can introduce additional moment, d. H. that the auxiliary Countershaft an additional moment to drive the Can provide vehicle.

Die Verbindbarkeit zwischen Hilfs-Vorgelegewelle und Getriebe-Eingangswelle ist durch eine Kupplung gegeben, die vorzugsweise als nasse Lamellenkupplung ausgebildet ist. The connectivity between auxiliary countershaft and Gearbox input shaft is given by a clutch that is preferably designed as a wet multi-plate clutch.

Das zusätzliche über die Hilfs-Vorgelegewelle eingeleitete Moment kann z. B. durch eine Elektromaschine bereitgestellt werden, die mit der Hilfs-Vorgelegewelle verbunden ist. In diesem Fall ist die Elektromaschine vorzugsweise mit der Batterie des anzutreibenden Kraftfahrzeuges verbunden. Ist keine Elektromaschine vorgesehen, ist es notwendig, einen Starter/Generator direkt am Verbrennungsmotor vorzusehen. Bei dieser Ausgestaltung sind dann auch Reib- Synchronkupplungen auf der Hilfs-Vorgelegewelle notwendig. The additional introduced via the auxiliary countershaft Moment can e.g. B. provided by an electric machine connected to the auxiliary countershaft. In In this case, the electric machine is preferably with the Battery connected to the motor vehicle to be driven. is no electric machine provided, it is necessary to use one Starter / generator to be provided directly on the internal combustion engine. With this configuration, friction Synchronizer clutches on the auxiliary countershaft necessary.

In Ausgestaltung des erfindungsgemäßen Getriebes kann die Kupplung auch koaxial zur Getriebe-Eingangswelle angeordnet sein. In an embodiment of the transmission according to the invention, the Coupling also arranged coaxially to the transmission input shaft his.

Vorzugsweise sind zusätzlich Nebenaggregate vorgesehen, die eine zusätzliche Funktionalität, bspw. eine Standklimatisierung, ermöglichen. Additional units are preferably provided, which an additional functionality, for example a Stand air conditioning, enable.

Die Verwendung nur einer Reibkupplung verringert den erforderlichen Bauraum und den Herstellungsaufwand gegenüber Doppelkupplungsgetrieben. Außerdem ist im Vergleich zu bekannten Getrieben mit einer Kupplung der Zugkrafteinbruch beim Gangwechsel kleiner. Dies gilt insbesondere auch im Vergleich mit dem in der Druckschrift DE 195 48 622 C1 beschriebenen Getriebe. The use of only one friction clutch reduces the required space and the manufacturing effort compared to double clutch transmissions. In addition, in Comparison to known gearboxes with a clutch Lower pulling force when changing gears. this applies especially in comparison with that in the publication DE 195 48 622 C1 described transmission.

Die Integration der multifunktionalen Elektromaschine ermöglicht, daß separate Aggregate, wie Starter und Generator, entfallen können. The integration of the multifunctional electric machine allows separate units, such as starters and Generator, can be omitted.

Das erfindungsgemäße Getriebe ermöglicht es, mit einer Reibungskupplung die Getriebefunktionen "Anfahren aus dem Stand" und "Gangwechsel unter Last" durchzuführen. Die vorzugsweise integrierte Elektromaschine hat die Funktionen "elektrisches Anfahren und Fahren", "Motorstart", "Generatorbetrieb", "Rekuperation der Bremsenergie" und "Unterstützung der Synchronisierung der Gangkupplungen". The transmission according to the invention makes it possible with a Friction clutch the gear functions "start from the Stand "and" gear change under load " preferably integrated electric machine has the functions "electric starting and driving", "engine start", "Generator operation", "recuperation of braking energy" and "Support for the synchronization of the gear clutches".

Zudem ist es möglich, daß Antriebsstrang-Nebenaggregate, wie beispielsweise eine Kältemaschine, entweder durch den Verbrennungsmotor oder durch die Elektromaschine angetrieben werden, so daß diese auch bei stehendem Verbrennungsmotor betrieben werden können. It is also possible that powertrain auxiliary units, such as a chiller, either through the Internal combustion engine or by the electric machine are driven so that even when standing Internal combustion engine can be operated.

Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung und der beiliegenden Zeichnung. Further advantages and refinements of the invention result itself from the description and the accompanying drawing.

Es versteht sich, daß die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. Die Erfindung ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird im folgenden unter Bezugnahme auf die Zeichnung näher erläutert. It is understood that the above and the Features to be explained below not only in the combination given in each case, but also in others Combinations or alone can be used without to leave the scope of the present invention. The Invention is based on an embodiment in the Drawing shown and is below Reference to the drawing explained in more detail.

Zeichnungdrawing

Fig. 1 zeigt eine bevorzugte Ausführungsform des erfindungsgemäßen Vorgelege-Wechselgetriebes in schematischer Darstellung. Fig. 1 shows a preferred embodiment of the countershaft change gear according to the invention in a schematic representation.

In der Fig. 1 sind ein Verbrennungsmotor 10, eine Elektromaschine 12, eine Batterie 14, ein Nebenaggregat 16, ein Fahrzeug 18, eine Kupplung 20, eine Motorausgangswelle 22, eine Getriebe-Eingangswelle 23, eine Fahrzeugsantriebswelle 24, eine Last-Vorgelegewelle 26 und eine Hilfs-Vorlegewelle 28 wiedergegeben. Mit GKi sind Gangkupplungen auf der Last-Vorgelegewelle 26, die keine Synchronelemente aufweisen, dargestellt. GKi* bezeichnen Gangkupplungen auf der Hilfs-Vorgelegewelle 28, die typischerweise ebenfalls keine Synchronelemente aufweisen. In Fig. 1 are an internal combustion engine 10 , an electric machine 12 , a battery 14 , an accessory 16 , a vehicle 18 , a clutch 20 , an engine output shaft 22 , a transmission input shaft 23 , a vehicle drive shaft 24 , a load countershaft 26 and an auxiliary countershaft 28 reproduced. GKi are gear clutches on the load countershaft 26 which have no synchronizing elements. GKi * denote gear clutches on the auxiliary countershaft 28 , which typically also have no synchronizing elements.

Mit GKR ist die Gangkupplung für den Rückwärtsgang bezeichnet. With GKR the gear clutch is for reverse gear designated.

Die Darstellung zeigt ein 7-Gang-Getriebe mit einem Rückwärtsgang. Das Getriebe weist einen Haupt-Lastpfad über die Last-Vorgelegewelle 26 und einen Hilfs-Lastpfad über die Hilfs-Vorgelegewelle 28 auf. Das Fahrzeug 18 wird regelmäßig vom Verbrennungsmotor 10 über den Haupt- Lastpfad, nämlich die Last-Vorgelegewelle 26, angetrieben, wobei die gewünschten Übersetzungen über die Gangkupplungen GK geschaltet werden können. Der Hilfs-Lastpfad, nämlich die Hilfs-Vorgelegewelle 28, kann auf unterschiedliche Weise ein zusätzliches Moment (Hilfsmoment) über die Gangstufen GK* einleiten. Dieses zusätzliche Moment kann beispielsweise vom Verbrennungsmotor 10 über die Kupplung 20 oder direkt von der Elektromaschine 12 eingeleitet werden. Damit steht bei Bedarf ein zusätzliches Moment zum Antreiben des Fahrzeuges 18 zur Verfügung. The illustration shows a 7-speed gearbox with a reverse gear. The transmission has a main load path via the load countershaft 26 and an auxiliary load path via the auxiliary countershaft 28 . The vehicle 18 is regularly driven by the internal combustion engine 10 via the main load path, namely the load countershaft 26 , the desired ratios being able to be shifted via the gear clutches GK. The auxiliary load path, namely the auxiliary countershaft 28 , can introduce an additional torque (auxiliary torque) via the gear stages GK * in different ways. This additional torque can be initiated, for example, by the internal combustion engine 10 via the clutch 20 or directly by the electric machine 12 . This provides an additional torque for driving the vehicle 18 if required.

Das Einleiten des zusätzlichen Moments über den Hilfs- Lastpfad erfüllt unterschiedliche Aufgaben. Zunächst ermöglicht dieses das Anfahren mit dem Verbrennungsmotor 10 über die gleitende Kupplung 20. Des weiteren gestattet dieses ein "Lastfreimachen" der Gangkupplungen GK für Gangwechsel unter Aufrechterhaltung eines Fahrzeug- Antriebsmoments (Lastschaltung). Dies ist durch den Aufbau des Hilfsmotors durch den Verbrennungsmotor 10 und/oder die Elektromaschine 12 möglich. Außerdem gestattet die Elektromaschine 12 bei der dargestellten Ausführungsform einen Zusatz- oder einen Alleinbetrieb durch die Elektromaschine. The introduction of the additional torque via the auxiliary load path fulfills different tasks. First of all, this enables starting with the internal combustion engine 10 via the sliding clutch 20 . Furthermore, this allows the gear clutches GK to be "released" for gear changes while maintaining a vehicle drive torque (power shift). This is possible due to the construction of the auxiliary motor by the internal combustion engine 10 and / or the electric machine 12 . In addition, in the embodiment shown, the electric machine 12 permits additional or sole operation by the electric machine.

Die Kupplung 20 wirkt als Abstützkupplung beim Anfahr- und Schaltvorgang, wobei diese im Gleitzustand bleibt. Beim Fahren in einer Gangstufe ist die Kupplung 20 offen. The clutch 20 acts as a support clutch during the starting and shifting process, which remains in the sliding state. When driving in one gear, the clutch 20 is open.

Die Übersetzungen ergeben sich aus
i = nVM/nF (7-Gang-Getriebe), wobei auf dem Haupt-Lastpfad gilt:
i1 > i2 > . . . > i7,
und auf dem Hilfs-Lastpfad:
i1 * = i1 - Δi, i4 * = i4 - Δi, i7 * = i7 - Δi. The translations result from
i = nVM / nF (7-speed gearbox), whereby the following applies on the main load path:
i 1 > i 2 >. , , > i 7 ,
and on the auxiliary load path:
i 1 * = i 1 - Δi, i 4 * = i 4 - Δi, i 7 * = i 7 - Δi.

Die Übersetzungsdifferenz Δi gewährleistet, daß die Kupplung 20 bei allen Gangwechseln im Gleitzustand bleiben kann, was regelungstechnisch einfacher beherrschbar als ein Übergang ins Haften ist. The ratio difference Δi ensures that the clutch 20 can remain in the sliding state with all gear changes, which is easier to control from a control point of view than a transition to sticking.

Nachfolgend wird anhand beispielhafter Betriebszustände die Funktionsweise des erfindungsgemäßen Vorgelege- Wechselgetriebes erläutert. The following is the example of operating conditions Operation of the countershaft according to the invention Gearbox explained.

Befindet sich das Fahrzeug 18 im Stillstand, sind alle Gangkupplungen GK und GK* offen. If the vehicle 18 is at a standstill, all gear clutches GK and GK * are open.

Beim Start des Verbrennungsmotors 10 durch die Elektromaschine 12 ist die Kupplung 20 geschlossen. When the internal combustion engine 10 is started by the electric machine 12 , the clutch 20 is closed.

Beim Antrieb des Nebenaggregats 16 und der Elektromaschine 12 durch den Verbrennungsmotor 10 (Generatorbetrieb, Batterie laden) ist die Kupplung 20 ebenfalls geschlossen. When the auxiliary unit 16 and the electric machine 12 are driven by the internal combustion engine 10 (generator operation, battery charging), the clutch 20 is also closed.

Beim Antrieb des Nebenaggregats 16 durch die Elektromaschine 12 mit der Batterie 14 bei stehendem Verbrennungsmotor 10 ist die Kupplung 20 offen. When the auxiliary unit 16 is driven by the electric machine 12 with the battery 14 when the internal combustion engine 10 is stopped, the clutch 20 is open.

Das erfindungsgemäße Getriebe ermöglicht ein Anfahren auf unterschiedliche Weise. Beim Anfahren mit dem Verbrennungsmotor 10 und einer eventuellen Unterstützung durch die Elektromaschine 12 sind zunächst alle Gangkupplungen GK offen. Dann wird die Gangkupplung GK1* auf der Hilfs-Vorgelegewelle 28 geschlossen, wobei die Gangkupplungen GK4* und GK7* offen sind. Die Kupplung 20 wird mit Anpreßkraft beaufschlagt, so daß das Fahrzeug beschleunigt. Aufgrund der Beziehung
i1 * = i1 - Δi
wird die Synchrondrehzahl an der Gangkupplung GK1 bei gleitender Kupplung 20 erreicht. Dann wird die Gangkupplung GK1 geschlossen und die Kupplung 20 geöffnet. Anschließend erfolgt ein Fahren des Fahrzeuges 18 im ersten Gang. Eine Unterstützung (Zusatzboost) durch die Elektromaschine 12 mittels der Batterie 14 ist über die Gangkupplung GK1* möglich. The transmission according to the invention enables starting in different ways. When starting with the internal combustion engine 10 and possible support from the electric machine 12 , all gear clutches GK are initially open. Then the gear clutch GK1 * on the auxiliary countershaft 28 is closed, the gear clutches GK4 * and GK7 * being open. The clutch 20 is pressurized so that the vehicle accelerates. Because of the relationship
i 1 * = i 1 - Δi
the synchronous speed at the gear clutch GK1 is reached with the clutch 20 sliding. Then the gear clutch GK1 is closed and the clutch 20 is opened. The vehicle 18 is then driven in first gear. Support (additional boost) by the electric machine 12 by means of the battery 14 is possible via the gear clutch GK1 *.

Beim ausschließlich elektrischen Anfahren sind zunächst alle Gangkupplungen GK offen. Dann wird die Gangkupplung GK1* auf der Hilfs-Vorgelegewelle 28 geschlossen, währenddessen die Gangkupplungen GK4* und GK7* offen sind. When exclusively starting electrically, all GK gear clutches are initially open. Then the gear clutch GK1 * on the auxiliary countershaft 28 is closed while the gear clutches GK4 * and GK7 * are open.

Die Kupplung 20 ist ebenfalls offen. Daraufhin beschleunigt die Elektromaschine 12 das Fahrzeug 18 über die Gangkupplung GK1*. The clutch 20 is also open. The electric machine 12 then accelerates the vehicle 18 via the gear clutch GK1 *.

Eine Lastübernahme durch den Verbrennungsmotor 10 nach einem rein elektrischen Anfahren ist ebenfalls möglich. Dabei wird der Verbrennungsmotor 10 durch Schließen der Kupplung 20 gestartet. Vorteilhaft dabei ist, daß das Schwungmoment des Fahrzeuges 18 eingesetzt werden kann. Dabei ist jedoch zu beachten, daß ein ruckfreies Starten des Verbrennungsmotors 10 nur möglich ist, wenn die Elektromaschine 12 ein ausreichendes Moment erbringt, um das Fahrzeug 18 zu beschleunigen und gleichzeitig den Verbrennungsmotor 10 zu starten. Ist ein separater Starter am Verbrennungsmotor 10 vorgesehen, stellt dies kein Problem dar. Der Verbrennungsmotor 10 synchronisiert die entsprechende Gangkupplung GKi des gewünschten Ganges i, woraufhin die entsprechende Gangkupplung geschlossen und die Kupplung 20 geöffnet wird. A load transfer by the internal combustion engine 10 after a purely electrical start-up is also possible. The internal combustion engine 10 is started by closing the clutch 20 . It is advantageous that the moment of inertia of the vehicle 18 can be used. It should be noted, however, that the internal combustion engine 10 can only be started smoothly if the electric machine 12 provides sufficient torque to accelerate the vehicle 18 and at the same time to start the internal combustion engine 10 . If a separate starter is provided on the internal combustion engine 10 , this is not a problem. The internal combustion engine 10 synchronizes the corresponding gear clutch GKi of the desired gear i, whereupon the corresponding gear clutch is closed and the clutch 20 is opened.

Das Hochschalten unter Last ist am Beispiel der Zughochschaltung vom ersten zum zweiten Gang erläutert. The upshifting under load is the example of Train upshift from first to second gear explained.

Ausgangszustand ist in diesem Fall eine Fahrt im ersten Gang, bei der die Gangkupplung GK1 geschlossen ist und alle übrigen Gangkupplungen GK offen sind. Sämtliche Gangkupplungen GK* auf der Hilfs-Vorgelegewelle 28 sind ebenfalls offen. Dann wird zunächst die Gangkupplung GK4* durch die Elektromaschine 12 synchronisiert und anschließend geschlossen. Darauf folgt die Beaufschlagung der Kupplung 20, wodurch eine zusätzliche Momentübertragung von dem Verbrennungsmotor 10 über die Kupplung 20 und die Gangkupplung GK4* zum Fahrzeug 18 erfolgt. Die Gangkupplung GK1 wird entlastet. Diese Entlastung kann durch die Elektromaschine unterstützt werden. Bei Lastfreiheit wird die Gangkupplung GK1 geöffnet und die Drehzahl des Verbrennungsmotors nimmt ab. Sobald die Synchrondrehzahl bei der Gangkupplung GK2 erreicht ist, wird diese geschlossen. Anschließend wird die Kupplung 20 geöffnet, so daß die Gangkupplung GK2 belastet und die Gangkupplung GK4* entlastet wird. In this case, the initial state is a drive in first gear, in which the gear clutch GK1 is closed and all other gear clutches GK are open. All gear clutches GK * on the auxiliary countershaft 28 are also open. Then the gear clutch GK4 * is first synchronized by the electric machine 12 and then closed. This is followed by the application of clutch 20 , which results in an additional torque transmission from internal combustion engine 10 via clutch 20 and gear clutch GK4 * to vehicle 18 . The GK1 gear clutch is relieved. This relief can be supported by the electric machine. When there is no load, the gear clutch GK1 is opened and the speed of the internal combustion engine decreases. As soon as the synchronous speed of the GK2 gear clutch is reached, it is closed. The clutch 20 is then opened so that the gear clutch GK2 is loaded and the gear clutch GK4 * is relieved.

Durch die dynamische Momentenüberhöhung infolge des Abbremsens der Masse des Verbrennungsmotors 10 kann das Gleitmoment in der Kupplung 20 größer sein als das gegenwärtige Moment des Verbrennungsmotors 10. Wichtig ist, daß ein Haftzustand der Kupplung 20 beim Schaltvorgang nicht erreicht wird. Entsprechend verlaufen Zughochschaltungen vom zweiten zum dritten und vom dritten zum vierten Gang. Zughochschaltungen vom vierten zum fünften, fünften zum sechsten und vom sechsten zum siebten Gang erfolgen mit der Gangkupplung GK7* anstelle der Gangkupplung GK4*. Doppel- oder Mehrfachhochschaltungen verlaufen wie Einzelhochschaltungen. Eine Ausnahme ergibt sich beim Schalten über den vierten Gang hinweg. Zu beachten ist, daß eine Identifikation des Lastzustandes in den Gangkupplungen GK notwendig ist. Due to the dynamic torque increase due to the braking of the mass of the internal combustion engine 10 , the sliding torque in the clutch 20 can be greater than the current torque of the internal combustion engine 10 . It is important that the clutch 20 does not adhere to the clutch during the switching process. Train upshifts run accordingly from second to third and from third to fourth gear. Train upshifts from fourth to fifth, fifth to sixth and from sixth to seventh gear take place with the gear clutch GK7 * instead of the gear clutch GK4 *. Double or multiple upshifts are like single upshifts. There is an exception when shifting over fourth gear. It should be noted that an identification of the load condition in the gear clutches GK is necessary.

Am Beispiel eines Schaltens vom dritten in den zweiten Gang ist nachfolgend eine Rückschaltung unter Last erläutert. Using the example of shifting from third to second gear a downshift under load is explained below.

Der Ausgangszustand ist eine Fahrt im dritten Gang. Bei dieser ist die Gangkupplung GK3 geschlossen und alle übrigen Gangkupplungen GK auf der Last-Vorgelegewelle 26offen. Auch alle Gangkupplungen GK* auf der Hilfs- Vorgelegewelle 28 sind ebenso wie die Kupplung 20 offen. The initial state is a trip in third gear. In this, the gear clutch GK3 is closed and all other gear clutches GK on the load countershaft 26 are open. All gear clutches GK * on the auxiliary countershaft 28 are also open, as is the clutch 20 .

Die Gangkupplung GK4* wird durch die Elektromaschine 12 zunächst synchronisiert und danach geschlossen. Die Kupplung 20 wird beaufschlagt, wodurch eine zusätzliche Momentübertragung von dem Verbrennungsmotor 10 über die Kupplung 20 und die Gangkupplung GK4* zum Fahrzeug 18 erfolgt. Dabei wird die Gangkupplung GK3 entlastet. Eine Unterstützung der Entlastung der Gangkupplung durch die Elektromaschine 12 ist möglich und sinnvoll. Bei Lastfreiheit wird die Gangkupplung GK3 geöffnet. Die Drehzahl des Verbrennungsmotors 10 erhöht sich durch Erhöhung des Moments des Verbrennungsmotors 10 und durch die Verringerung des Gleitmoments der Kupplung 20. Sobald die Synchrondrehzahl bei der Gangkupplung GK2 erreicht ist, wird diese geschlossen und die Kupplung 20 geöffnet. Dies führt dazu, daß die Gangkupplung GK2 belastet und die Gangkupplung GK4* entlastet wird. The gear clutch GK4 * is first synchronized by the electric machine 12 and then closed. The clutch 20 is acted upon, whereby an additional torque transmission from the internal combustion engine 10 via the clutch 20 and the gear clutch GK4 * to the vehicle 18 takes place. This relieves the GK3 gear clutch. Supporting the relief of the gear clutch by the electric machine 12 is possible and useful. The GK3 gear clutch is opened when there is no load. The speed of the internal combustion engine 10 increases by increasing the torque of the internal combustion engine 10 and by reducing the sliding torque of the clutch 20 . As soon as the synchronous speed is reached in the gear clutch GK2, it is closed and the clutch 20 is opened. This means that the gear clutch GK2 is loaded and the gear clutch GK4 * is relieved.

Auch bei diesem Schaltvorgang wird ein Haftzustand der Kupplung 20 nicht erreicht. Ein Zurückschalten vom zweiten zum ersten und vom vierten zum dritten Gang erfolgt entsprechend. Ein Zurückschalten vom siebten zum sechsten, sechsten zum fünften und vom fünften zum vierten Gang erfolgt mit der Gangkupplung GK7* anstelle der Gangkupplung GK4*. Doppel- oder Mehrfachrückschaltungen werden wie Einzelrückschaltungen durchgeführt. Dies ist wiederum beim Schalten über den vierten Gang hinweg der Fall. Auch hier ist eine Identifikation des Lastzustandes in den Gangkupplungen GK notwendig. In this switching process, the clutch 20 is not in an adhered state. Shifting down from second to first and from fourth to third gear takes place accordingly. Shifting down from seventh to sixth, sixth to fifth and from fifth to fourth gear takes place with the gear clutch GK7 * instead of the gear clutch GK4 *. Double or multiple downshifts are performed like single downshifts. This is again the case when shifting over fourth gear. Here, too, an identification of the load condition in the gear clutches GK is necessary.

Nachfolgend sind beispielhaft weitere Betriebszustände zur Erläuterung der Funktionsweise des erfindungsgemäßen Wechselgetriebes aufgezeigt. The following are examples of other operating states Explanation of the operation of the invention Gearbox shown.

Beim Fahren in einem Gang i mit dem Verbrennungsmotor 10 ist die entsprechende Gangkupplung GKi geschlossen und alle weiteren Gangkupplungen GK offen. Eine Gangkupplung GK* auf der Hilfs-Vorgelegewelle 28 ist geschlossen, währenddessen die anderen Gangkupplungen GK* offen sind. Die Kupplung 20 ist ebenfalls offen. Durch die Momentübertragung zwischen der Elektromaschine 12 und dem Fahrzeug 18 ist ein Zusatzantrieb mit der Elektromaschine 12 und ein Generatorbetrieb derselben zum Laden der Batterie 14 möglich. When driving in a gear i with the internal combustion engine 10 , the corresponding gear clutch GKi is closed and all other gear clutches GK are open. A gear clutch GK * on the auxiliary countershaft 28 is closed, while the other gear clutches GK * are open. The clutch 20 is also open. Due to the torque transmission between the electric machine 12 and the vehicle 18 , an additional drive with the electric machine 12 and generator operation thereof for charging the battery 14 is possible.

In der Regel erfolgt ein Abschalten des Verbrennungsmotors 10 während der Fahrt im Schubbetrieb. Man geht dabei von einer Fahrt in einem Gang i aus, so daß die Gangkupplung GKi geschlossen ist. Die Elektromaschine 12 ist über eine Gangkupplung GK* auf der Hilfs-Vorgelegewelle 28 angekoppelt, währenddessen die Kupplung 20 offen ist. Die Wegnahme des durch den Verbrennungsmotor 10 bereitgestellten Moments erfolgt derart, daß die Gangkupplung GKi lastfrei wird. Es erfolgt ein Öffnen der Gangkupplung GKi und ein Abschalten des Verbrennungsmotors 10. Die Elektromaschine 12 kann weiterhin auf das Fahrzeug 18 wirken (Motor- oder Generatorbetrieb) und kann das Lastfreimachen der Gangkupplungen GKi auf der Last- Vorgelegewelle 26 unterstützen. As a rule, the internal combustion engine 10 is switched off while driving in overrun mode. One assumes a drive in a gear i so that the gear clutch GKi is closed. The electric machine 12 is coupled to the auxiliary countershaft 28 via a gear clutch GK *, during which the clutch 20 is open. The torque provided by the internal combustion engine 10 is removed in such a way that the gear clutch GKi becomes load-free. The gear clutch GKi is opened and the internal combustion engine 10 is switched off . The electric machine 12 can continue to act on the vehicle 18 (motor or generator operation) and can assist in releasing the load on the gear clutches GKi on the load countershaft 26 .

Bei einer Rekuperation mit stehendem Verbrennungsmotor 10 ist die Kupplung 20 offen, ebenso wie alle Gangkupplungen GK. Eine Gangkupplung GK* ist geschlossen, während die übrigen Gangkupplungen GK* offen sind. Der Antrieb der Elektromaschine 12 durch das Fahrzeug 18 erfolgt über eine geschlossene Gangkupplung GK* auf der Hilfs-Vorgelegewelle 28. In the case of recuperation with the internal combustion engine 10 stationary, the clutch 20 is open, as are all the gear clutches GK. A GK * gear clutch is closed while the other GK * gear clutches are open. The electric machine 12 is driven by the vehicle 18 via a closed gear clutch GK * on the auxiliary countershaft 28 .

Beim Starten und Synchronisieren des Verbrennungsmotors 10 aus der Rekuperation bei stehendem Verbrennungsmotor 10 heraus erfolgt folgendermaßen:
Die geschlossene Gangkupplung GKi* wird durch die Elektromaschine 12 entlastet und anschließend geöffnet. Die Kupplung 20 wird geschlossen (Haften). Der Verbrennungsmotor 10 wird durch die Elektromaschine 12 gestartet. Anschließend wird die Kupplung 20 geöffnet. Die entsprechende Gangkupplung GKi des gewünschten Ganges i wird durch den Verbrennungsmotor 10 synchronisiert und anschließend geschlossen. Das Synchronisieren einer Gangkupplung GK* erfolgt durch die Elektromaschine 12. Anschließend wird diese Gangkupplung GKi* geschlossen. When starting and synchronizing the internal combustion engine 10 from the recuperation with the internal combustion engine 10 stopped, the following occurs:
The closed gear clutch GKi * is relieved by the electric machine 12 and then opened. The clutch 20 is closed (sticking). The internal combustion engine 10 is started by the electric machine 12 . The clutch 20 is then opened. The corresponding gear clutch GKi of the desired gear i is synchronized by the internal combustion engine 10 and then closed. A gear clutch GK * is synchronized by the electric machine 12 . This gear clutch GKi * is then closed.

Beim Antrieb des Nebenaggregats 16 durch die Elektromaschine 12, was beispielsweise erfolgt, wenn das Fahrzeug 18 steht, ist die Kupplung 20 offen, und alle Gangkupplungen GK* auf der Hilfs-Vorgelegewelle 28 sind offen. When the auxiliary unit 16 is driven by the electric machine 12 , for example when the vehicle 18 is stationary, the clutch 20 is open and all gear clutches GK * on the auxiliary countershaft 28 are open.

Alternativ zu der vorstehend beschriebenen Ausführungsform ist das erfindungsgemäße Vorgelege-Getriebe auch ohne Elektromaschine realisierbar. In diesem Fall sind Reib- Synchronkupplungen auf der Hilfs-Vorgelegewelle sowie ein Starter/Generator direkt an dem Verbrennungsmotor notwendig. Die Kupplung kann koaxial zur Getriebe- Eingangswelle angeordnet sein. As an alternative to the embodiment described above the countershaft transmission according to the invention is also without Electric machine feasible. In this case, friction Synchronizer clutches on the auxiliary countershaft as well as a Starter / generator directly on the internal combustion engine necessary. The coupling can be coaxial to the transmission Input shaft can be arranged.

Claims (8)

1. Vorgelege-Wechselgetriebe für Kraftfahrzeuge (18) zur Übertragung eines Drehmoments eines Verbrennungsmotors (10) auf das Kraftfahrzeug (18), mit einer Last-Vorgelegewelle (26) und einer Hilfs-Vorgelegewelle (28), die mit einer Getriebe-Eingangswelle (23) verbindbar ist, wobei die Hilfs-Vorgelegewelle (28) ausgelegt ist, um ein zusätzliches Moment einzuleiten. 1. countershaft transmission for motor vehicles ( 18 ) for transmitting a torque of an internal combustion engine ( 10 ) to the motor vehicle ( 18 ), with a load countershaft ( 26 ) and an auxiliary countershaft ( 28 ), which with a transmission input shaft ( 23 ) can be connected, the auxiliary countershaft ( 28 ) being designed to introduce an additional torque. 2. Vorgelege-Wechselgetriebe nach Anspruch 1, dadurch gekennzeichnet, daß eine Kupplung (20) die Verbindbarkeit zwischen der Hilfs-Vorgelegewelle (28) und der Getriebe- Eingangswelle (23) gewährleistet. 2. countershaft transmission according to claim 1, characterized in that a coupling ( 20 ) ensures the connectivity between the auxiliary countershaft ( 28 ) and the transmission input shaft ( 23 ). 3. Vorgelege-Wechselgetriebe nach Anspruch 2, dadurch gekennzeichnet, daß als Kupplung (20) eine nasse Lamellenkupplung dient. 3. countershaft transmission according to claim 2, characterized in that a wet multi-plate clutch is used as the clutch ( 20 ). 4. Vorgelege-Wechselgetriebe nach Anspruch 2, dadurch gekennzeichnet, daß die Kupplung (20) koaxial zu der Getriebe-Eingangswelle (23) angeordnet ist. 4. countershaft transmission according to claim 2, characterized in that the clutch ( 20 ) is arranged coaxially to the transmission input shaft ( 23 ). 5. Vorgelege-Wechselgetriebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß eine mit der Hilfs- Vorgelegewelle (28) verbundene Elektromaschine (12) vorgesehen ist. 5. countershaft transmission according to one of claims 1 to 4, characterized in that one with the auxiliary countershaft ( 28 ) connected electric machine ( 12 ) is provided. 6. Vorgelege-Wechselgetriebe nach Anspruch 5, dadurch gekennzeichnet, daß die Elektromaschine (12) mit einer Batterie (14) verbunden ist. 6. countershaft transmission according to claim 5, characterized in that the electric machine ( 12 ) with a battery ( 14 ) is connected. 7. Vorgelege-Wechselgetriebe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein Starter/Generator direkt am Verbrennungsmotor (10) vorgesehen ist, und Reib- Synchronkupplungen auf der Hilfs-Vorgelegewelle (28) angeordnet sind. 7. countershaft transmission according to one of claims 1 to 4, characterized in that a starter / generator is provided directly on the internal combustion engine ( 10 ), and friction synchronous clutches on the auxiliary countershaft ( 28 ) are arranged. 8. Vorgelege-Wechselgetriebe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß ein zusätzliches Hilfsaggregat (16) vorgesehen ist. 8. countershaft transmission according to one of claims 1 to 7, characterized in that an additional auxiliary unit ( 16 ) is provided.
DE10203514A 2002-01-30 2002-01-30 Intermediate gear change box for transferring torque in an internal combustion engine to a motor vehicle has a layshaft under load and an auxiliary layshaft linked to a gearbox feed shaft Withdrawn DE10203514A1 (en)

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DE10203514A DE10203514A1 (en) 2002-01-30 2002-01-30 Intermediate gear change box for transferring torque in an internal combustion engine to a motor vehicle has a layshaft under load and an auxiliary layshaft linked to a gearbox feed shaft
IT000129A ITMI20030129A1 (en) 2002-01-30 2003-01-28 SPEED CHANGE WITH DRIVE SHAFT FOR VEHICLES.
JP2003020623A JP2003232412A (en) 2002-01-30 2003-01-29 Counter shaft transmission used for automobile
FR0301045A FR2835301B1 (en) 2002-01-30 2003-01-30 INTERMEDIATE SHAFT GEARBOX FOR MOTOR VEHICLES
ES200300234A ES2239498A1 (en) 2002-01-30 2003-01-30 Counter shaft transmission used for automobile

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DE (1) DE10203514A1 (en)
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FR2835301B1 (en) 2009-05-08
FR2835301A1 (en) 2003-08-01
JP2003232412A (en) 2003-08-22
ES2239498A1 (en) 2005-09-16
ITMI20030129A1 (en) 2003-07-31

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