CN107303808B - 用于运行机动车驱动传动系的方法和这种机动车驱动传动系模块 - Google Patents

用于运行机动车驱动传动系的方法和这种机动车驱动传动系模块 Download PDF

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CN107303808B
CN107303808B CN201710230439.7A CN201710230439A CN107303808B CN 107303808 B CN107303808 B CN 107303808B CN 201710230439 A CN201710230439 A CN 201710230439A CN 107303808 B CN107303808 B CN 107303808B
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output shaft
starting element
motor vehicle
transmission
drive
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CN107303808A (zh
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F·比勒
F·普拉策
T·伦普
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Friedrichshafen Gear Factory AG
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Friedrichshafen Gear Factory AG
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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • F16D48/08—Regulating clutch take-up on starting
    • 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
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/48—Control of exclusively fluid gearing hydrodynamic
    • F16H61/50—Control of exclusively fluid gearing hydrodynamic controlled by changing the flow, force, or reaction of the liquid in the working circuit, while maintaining a completely filled working circuit
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    • 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
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
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    • B60W2510/081—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W2510/00—Input parameters relating to a particular sub-units
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    • B60W2510/1005—Transmission ratio engaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B60W2710/00—Output or target parameters relating to a particular sub-units
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • 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
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    • 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
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    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/946—Characterized by control of driveline clutch

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本发明涉及一种用于运行机动车驱动传动系的方法，该驱动传动系包括至少一个用于在变速器的驱动轴和输出轴之间提供各不同传动比的变速器(2)、构造为电机的驱动源(1)、位于驱动源和输出轴(22)之间的力流中的能被液压地操作或跨接的起动元件(3)，通过驱动源(1)驱动的机动车起动过程和/或直至机动车停止状态的机动车停车过程借助闭合的或被跨接的起动元件(3)进行，在起动过程和/或停车过程中比较输出轴相关参数的实际值与输出轴相关参数的规定值，在达到或超过可定义的实际值与规定值偏差时，将起动元件置入打滑状态中，在该打滑状态中起动元件继续传递扭矩。本发明还涉及这种机动车的驱动传动系模块。

Description

用于运行机动车驱动传动系的方法和这种机动车驱动传动系 模块
技术领域
本发明涉及一种用于运行机动车驱动传动系的方法以及这种机动车的驱动传动系模块。
背景技术
具有内燃机作为唯一驱动源的传统机动车驱动传动系通常在驱动源和驱动轮之间的力流中具有起动元件，以便实现机动车的起动过程。这种起动元件例如是液力变矩器或摩擦离合器。具有电动机作为唯一驱动源的机动车驱动传动系通常不需要起动元件，因为电动机可从停车起加速车辆。
并联式混合动力车辆的驱动传动系通常在起动过程仅应借助内燃机进行时也需要起动元件。为了电动起动具有并联式混合动力驱动传动系的机动车，在现有技术中公开了各种不同方案。本申请人的公开文献DE 102006018058A1公开了用于具有并联式混合动力驱动传动系的机动车的各种起动过程。在该现有技术的图4中示出在借助打滑的变矩器锁止离合器的纯电驱动起动过程中的时间曲线，并且在图5中示出借助闭合的变矩器锁止离合器的起动过程的时间曲线。
上述两个起动过程各具优缺点。在起动元件不打滑的情况下的起动过程在此是特别节能的，因为通过驱动源施加的能量没有通过驱动源和驱动轮之间的打滑运行而损耗。但在变速器转速较低时(这例如出现在起动过程中)，由变速器机械驱动的、用于为变速器液压消耗器供应压力的泵仅具有小的体积流量。这可能限制变速器的功能并且在此例如基于形成挡位的切换元件的打滑而降低驾驶舒适性。
在起动元件不打滑的情况下的停车过程也可以是有利的，因为在停车过程后直接进行起动过程时无须再次闭合或跨接打滑的起动元件，以便实现尽可能节能的起动。
发明内容
因此，本发明的任务在于提供一种方法，该方法可在起动过程中实现驱动传动系的节能运行并确保驾驶舒适性。
该任务通过根据本发明的用于运行机动车的驱动传动系的方法来解决，该驱动传动系至少包括用于在变速器的驱动轴和输出轴之间提供各不同传动比的变速器、构造为电机的驱动源、位于驱动源和输出轴之间的力流中的能被液压地操作或跨接的起动元件，其中，通过驱动源驱动的机动车起动过程，和/或直至机动车停止状态的机动车停车过程，借助闭合的或被跨接的起动元件进行，其特征在于，在起动过程和/或停车过程中比较输出轴相关参数的实际值与输出轴相关参数的规定值，在达到或超过实际值与规定值的可定义的偏差时，将起动元件置入打滑状态中，在该打滑状态中起动元件继续传递扭矩。有利方案由说明书以及附图给出。
所述方法适合用于运行机动车驱动传动系，该驱动传动系至少包括构造为电机的驱动源、用于在变速器的驱动轴和输出轴之间提供各不同传动比的变速器以及位于驱动源和输出轴之间的力流中的起动元件。起动元件在此以液压方式可***作或可被跨接。电机可用作驱动传动系中唯一的驱动源或在混合动力驱动传动系中与内燃机共同作用。起动元件可设置在变速器之外或之内。起动元件可以是干式或湿式运行的摩擦离合器，其单独设置或参与形成变速器挡位。起动元件也可以是液力变矩器，其液压路径可借助锁止离合器跨接。通过电机驱动的机动车起动过程在此借助闭合的或被跨接的起动元件进行。替代或附加地，这也适用于直至机动车停止的停车过程。
根据本发明，在起动过程或停车过程中将输出轴相关参数(即与输出轴相关的参数)的实际值与输出轴相关参数的规定值比较。在达到或超过可定义的实际值与规定值偏差时，将起动元件从闭合状态置入打滑状态中，在该打滑状态中起动元件继续从驱动源向输出轴传递扭矩。当起动元件构造为摩擦离合器时，这通过减小用于操作起动元件的压力实现。当起动元件构造为液力变矩器时，这通过减小作用于锁止离合器的压力实现。
通过对输出轴相关参数进行可信度测试，可迅速识别起动过程或停车过程中变速器的错误表现。作为对应措施，使起动元件进入打滑状态中，由此可在不加速机动车的情况下提高驱动源转速。通过现在较高的驱动源转速可提高变速器油压供应的输送量，从而可确保变速器功能和因此驾驶舒适性。
优选输出轴相关参数是驱动轴和输出轴之间的转速比、换言之变速器的传动比。变速器通常本来就具有用于检测驱动轴转速和输出轴转速的转速传感器，因此可无须额外花费提供所需参数。用于检测输出轴转速的转速传感器并非必须直接测量输出轴的转速。作为替代方案也可测量一个轴的转速，该轴与输出轴具有恒定传动比。这同样适用于驱动轴转速的检测。
根据一种替代实施方式，输出轴相关参数是输出轴转速。因为在起动过程或停车过程中出现的变速器转速极小，因此常常不提供准确的转速信号。因此例如可在起动过程中出现这样的状态，在其中尽管存在驱动源扭矩，但输出轴不具有转速，因为起动元件操作或起动元件跨接装置的供油不足。该状态也可通过纯定性比较输出轴规定转速与输出轴实际转速来识别。在定性比较时输出轴具有转速这一事实就已足够，无须识别转速值。当存在较高转速、如多于每分钟50转时，也可进行定量比较。用于检测输出轴转速的转速传感器并非必须直接测量输出轴的转速。作为替代方案，也可测量一个轴的转速，该轴与输出轴具有恒定传动比。
根据一种优选方案，输出轴相关参数可以是输出轴的转动方向，并且优选应考虑变速器中挂入的挡位。这例如在于斜坡上的起动过程中十分重要，在此当基于不足的压力供应不能或只能有缺陷地确保变速器中的力流时，机动车基于斜坡位置逆着希望的行驶方向被加速。这也可导致变速器油泵逆着优选转动方向被驱动，从而液压油从控制装置返回到油底壳中。这进一步削弱了压力供应并可导致泵的损坏或故障。
当现在识别输出轴相关参数的规定值与实际值的偏差时，使起动元件置入打滑状态。这优选通过提高驱动源转速并且减少作用于起动元件或起动元件跨接装置的液压压力进行。两个措施的结合加速了驱动源与输出轴的解耦并且因此变速器功能的提供。
优选作用于起动元件或起动元件跨接装置的液压压力的减少斜坡状进行，并且斜坡斜率与机动车的规定驱动扭矩有关。规定驱动扭矩例如可通过机动车加速踏板位置确定。随着越来越大的规定驱动扭矩选择更为陡峭的斜坡，以便加速解耦。
根据一种优选实施方式，从驱动源向输出轴传递的扭矩在起动元件置入打滑状态期间保持恒定。这通过相应控制驱动源和/或起动元件或起动元件跨接装置来实现。由此避免意外的、驾驶员不可理解的机动车加速或减速。
除了本发明方法外，还提出一种机动车驱动传动系模块，至少包括构造为电机的驱动源、与机动车内燃机的接口、控制单元、用于在变速器的驱动轴和输出轴之间提供各不同传动比的变速器以及位于驱动源和输出轴之间的力流中的起动元件。所述控制单元在此构造用于控制上述方法。
附图说明
下面参考附图详细说明本发明的实施例。相同和相似的构件在此设有同一附图标记。附图如下：
图1为包括液力变矩器作为起动元件的并联式混合动力驱动传动系；
图2为包括集成在变速器中的起动元件的并联式混合动力驱动传动系；
图3为驱动传动系不同参数的时间曲线。
具体实施方式
图1示意性示出构造为并联式混合动力驱动传动系的机动车驱动传动系。驱动传动系包括内燃机9和构造为电机的驱动源1，分离离合器10连接在内燃机9和电机1之间。图1的驱动传动系还包括具有驱动轴21和输出轴22的变速器2以及起动元件3，该起动元件3连接在电机1和驱动轴21之间。起动元件3是液力变矩器，其可被并联的锁止离合器3B跨接。输出轴22与机动车的驱动轮驱动连接。
当装配有图1的驱动传动系的机动车仅应借助电机1起动时，则这可借助打滑的变矩器或借助通过闭合的锁止离合器3B跨接的变矩器进行。在借助打滑的变矩器的起动过程中，电机1可具有任意转速，而输出轴22则例如通过操作机动车的行车制动器静止。在借助闭合的锁止离合器3B的起动过程中电机1和输出轴22的转速通过在变速器2中所选择的传动比耦合。
图2示意性示出构造为并联式混合动力驱动传动系的机动车驱动传动系，起动元件3现在集成到变速器2中。起动元件3例如可以是用于形成变速器2传动比的切换元件之一。电机1与驱动轴21固定连接。输出轴22与机动车的驱动轮驱动连接。
当装配有图2的驱动传动系的机动车仅应借助电机1起动时，则这可借助打滑的起动元件3或借助闭合的起动元件3进行。在借助打滑的起动元件3的起动过程中，电机1可具有任意转速，而输出轴22则例如通过操作机动车的行车制动器静止。在借助闭合的起动元件3的起动过程中，电机1和输出轴22的转速通过在变速器2中所选择的传动比耦合。
因此，当借助根据图1或图2的驱动传动系纯电动行驶时，内燃机9通常关闭并且连接在内燃机9和电机1之间的分离离合器10完全打开。相反，在混合运行中(在其中内燃机9和电机1均运转并提供驱动扭矩)，连接在内燃机9和电机1之间的分离离合器10闭合。
内燃机9的运行由发动机控制器控制或调节并且变速器2的运行由变速器控制器控制或调节。为了控制和/或调节电机1的运行，通常设置混合动力控制器。起动元件3或锁止离合器3B由起动元件控制器控制或调节。
通常起动元件控制器和变速器控制器实现于一个共同的控制装置、即变速器控制装置中。混合动力控制器也可以是变速器控制装置的组成部分。发动机控制器通常是单独的控制装置、即发动机控制装置的组成部分。发动机控制装置和变速器控制装置相互间交换数据。
图3示出在纯电驱动的起动过程中驱动传动系的各不同参数的时间曲线，其中包括诊断值D、电机1的转速1n、电机1的基本转速水平1nL、输出轴22的转速22n和用于操作起动元件3或其跨接装置3B的液压压力3p。电机转速1n和输出轴转速22n从零起上升，在此输出轴转速22n首先均匀地跟随电机转速1n。然而随着时间的推移输出轴转速22n下降，虽然电机转速1n大致保持不变。在时刻tx，输出轴转速22n与规定值的偏差大于极限值，由此诊断值D从零上升为1。
当诊断值D具有值1时，电机1的转速1n提高到基本转速水平1nL，而压力3p斜坡状下降。在根据图2的驱动传动系中，压力3p不完全下降，而是下降到一个较低水平上，以致起动元件3能够继续传递扭矩。压力3p的相应时间曲线通过实线示出。在根据图1的驱动传动系中，作用于锁止离合器3B的压力3p完全减小，以致构造为液力变矩器的起动元件3接入在驱动源1和输出轴22之间的力流中。压力3p的相应时间曲线以虚线示出。通过提高电机1的转速1n，确保了变速器2的供油，使得输出轴转速22n再次到达其规定值。
附图标记列表
1 驱动源
1n 驱动源转速
1nL 驱动源的空载转速水平
2 变速器
21 驱动轴
22 输出轴
22n 输出轴转速
3 起动元件
3p 压力
3B 锁止离合器
9 内燃机
10 分离离合器
D 诊断值

Claims (10)

1.一种用于运行机动车的驱动传动系的方法，该驱动传动系至少包括用于在变速器(2)的驱动轴(21)和输出轴(22)之间提供各不同传动比的变速器(2)、构造为电机的驱动源(1)、位于驱动源(1)和输出轴(22)之间的力流中的能被液压地操作或跨接的起动元件(3)，其中，通过驱动源(1)驱动的机动车起动过程，和/或直至机动车停止状态的机动车停车过程，借助闭合的或被跨接的起动元件(3)进行，其特征在于，在起动过程和/或停车过程中比较输出轴(22)相关参数的实际值与输出轴(22)相关参数的规定值，在达到或超过实际值与规定值的可定义的偏差时，将起动元件(3)置入打滑状态中，在该打滑状态中起动元件(3)继续传递扭矩。
2.根据权利要求1所述的方法，其特征在于，所述输出轴(22)相关参数是在驱动轴(21)和输出轴(22)之间的转速比。
3.根据权利要求1所述的方法，其特征在于，所述输出轴(22)相关参数是输出轴(22)转速(22n)。
4.根据权利要求1所述的方法，其特征在于，所述输出轴(22)相关参数是输出轴(22)的转动方向。
5.根据权利要求4所述的方法，其特征在于，所述输出轴的转动方向的规定值与变速器(2)中挂入的挡位相关。
6.根据权利要求1至5之一所述的方法，其特征在于，所述起动元件(3)的打开或置入打滑状态通过提高驱动源转速并且减少作用于起动元件(3)或起动元件的跨接装置的液压压力(3p)实现。
7.根据权利要求6所述的方法，其特征在于，作用于起动元件(3)或起动元件的跨接装置的液压压力(3p)斜坡状地减少，该斜坡的斜率与机动车的规定驱动扭矩相关。
8.根据权利要求6所述的方法，其特征在于，从驱动源(1)向输出轴(22)传递的扭矩在起动元件(3)置入打滑状态期间保持恒定。
9.根据权利要求7所述的方法，其特征在于，从驱动源(1)向输出轴(22)传递的扭矩在起动元件(3)置入打滑状态期间保持恒定。
10.一种机动车驱动传动系模块，至少包括构造为电机的驱动源(1)、与机动车内燃机(9)的接口、控制单元(5)、用于在变速器(2)的驱动轴(21)和输出轴(22)之间提供各不同传动比的变速器(2)以及位于驱动源(1)和输出轴(22)之间的力流中的起动元件(3)，其特征在于，所述控制单元(5)构造用于控制根据权利要求1至9之一所述的方法。
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