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WO2013068175A1 - Procédé de commande des processus de changement de vitesse dans une boîte de vitesses - Google Patents

Procédé de commande des processus de changement de vitesse dans une boîte de vitesses Download PDF

Info

Publication number
WO2013068175A1
WO2013068175A1 PCT/EP2012/069310 EP2012069310W WO2013068175A1 WO 2013068175 A1 WO2013068175 A1 WO 2013068175A1 EP 2012069310 W EP2012069310 W EP 2012069310W WO 2013068175 A1 WO2013068175 A1 WO 2013068175A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
switching
noise
transmission
switching operation
Prior art date
Application number
PCT/EP2012/069310
Other languages
German (de)
English (en)
Inventor
Florian Schneider
Anita WETZEL
Ingo Sauter
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2013068175A1 publication Critical patent/WO2013068175A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor 
    • 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
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • 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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H2061/2823—Controlling actuator force way characteristic, i.e. controlling force or movement depending on the actuator position, e.g. for adapting force to synchronisation and engagement of gear 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
    • 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
    • F16H61/0021—Generation or control of line pressure

Definitions

  • the invention relates to a method for noise-optimized engagement of gears in an automated manual transmission according to the preamble of
  • Stage change gearbox designed in countershaft design, in which idler gears and fixed wheels are arranged on at least one transmission input shaft and a transmission output shaft and at least in pairs in meshing engagement with each other.
  • a loose wheel is rotatably connected by means of a shift or sliding sleeve with a common transmission shaft, so that a torque transmission from the fixed to the idler gear.
  • the sliding sleeve is rotatably and slidably disposed on the common transmission shaft and is operated differently from a manually switchable transmission by means of an actuator or an adjusting device, which in turn is controlled by a transmission control unit.
  • Such an actuator can be known to be hydraulically, pneumatically or electrically actuated.
  • the movement of the sliding sleeves usually takes place via a switching cylinder with pistons. Since the switching process itself should run as fast as possible, it is mainly worked with large pressures. When operating the switching elements therefore arise especially when hitting the piston on the stop and the collision of
  • the subject DE 10 2005 01 1 273 A1 of the Applicant also deals with this topic.
  • it is attempted to work with a collision of two transmission parts with the lowest possible impact force, so that thus the lowest possible impact noise.
  • the switching piston speed is varied so that the switching piston is moved during the switching path to a synchronization start of the transmission as possible with full pressure and high speed and after the end of the synchronization phase at low speed in his End position is brought. This is done via individually controllable pulsable valves that are mutually or mutually controllable. The following happens during the synchronization process:
  • the inflow valve is opened and pressure medium reaches the working area.
  • the piston starts its movement in working direction.
  • the drain valve is included
  • control piston With the end of the synchronization process, the control piston is unlocked, bringing it with great speed to its stop moves. In this case, the respective position of the piston is detected by a displacement measuring device and the
  • Information is processed in such a way that the venting of the part of the working space lying between the piston and the stop is stopped and an air cushion decelerates the impact.
  • Stop workspace has formed, vented, so as to make it possible to drive the piston to the final position. This is also controlled by distance measuring sensors.
  • the object of this invention is therefore to develop a simple method for noise-optimized engagement of gears in an automated manual transmission, which can be implemented as possible without additional components to be installed.
  • a method is proposed in which is lowered by a pressure reduction of the control pressure of the actuators of the system pressure for a given upcoming switching operation or a certain operating phase to a lower pressure level, so that the pressure is just high enough to the safe implementation to ensure the switching process.
  • This pressure reduction ensures that the moving masses do not absorb so much kinetic kinetic energy and the force of the impact of the piston on an end stop or of gears on each other, is reduced.
  • the possibility of controlling the pressure which serves to control the actuators must be given.
  • the pressure reduction is not varied during the switching process itself.
  • Range set with planetary gearset produce a higher noise level than the circuit of a forward gear of the main transmission or a splitter group transmission.
  • a pressure reduction can take place deliberately during the activation of particularly strongly noise-developing components or assemblies.
  • the pressure can be lowered. In the remaining phases of operation, the pressure is raised back to normal level of the system pressure.
  • control pressure must not be lowered arbitrarily during the process of pressure reduction. It must always be considered that the functionality of the Circuit is preserved. With non-synchronized transmission parts, the control pressure must be sufficient to be able to adjust the switching elements safely. For synchronized transmission parts, the actuation pressure must be at least sufficient to perform the synchronization task safely and within an acceptable time.
  • the maximum driving pressure that can be lowered can be determined and determined experimentally. It can, for. B. by adaptation of a very low pressure level, the driving pressure of the circuits are raised so far, until no functional limitations occur. Likewise, it would be possible to start an adaptation from a high pressure level
  • Noise level permissible pressure level to be determined by means of sensors Modern automated manual transmissions are often equipped with inclination and acceleration sensors. If these sensors can measure accelerations of the actuators, it can be assumed that the striking of the actuators generates a jerk and this is measured by means of these acceleration sensors. Furthermore, it can be assumed that the strength of the resulting noise is proportional to the resulting jerk. Thus, z. B. be determined experimentally, how big ß the permissible jerk and thus the resulting noise may be.
  • the acceleration sensor the corresponding circuits can be evaluated during operation and the drive pressure to be set for the upcoming circuits to be defined.
  • FIG. 1 Exemplary transmission construction
  • Fig. 2 Schematic diagram of a switching device according to the invention
  • FIG. 1 shows an exemplary transmission structure of an automatic transmission 6 with a main gear 8 with the gears G1 to G5 and the reverse gear RG and a range group transmission 10 with a planetary gear set 12.
  • the main transmission 8 is connected via a clutch 14 with the
  • Vehicle drive 16 connected. From the clutch 14, the transmission input shaft 18 is in the main gear 8 in. From there, the speed is transmitted depending on the gear selection via a countershaft 20 with the respective gear pairs and the associated translation back to the main shaft or transmission output shaft 22.
  • the synchronization elements are identified by S1 to S4 and are used to adjust the speed of the idler gears in the main transmission 8 and in transmission modules such as the range group transmission 10. The synchronization control is performed in these automated transmissions by the pneumatic control of switching elements.
  • a switching device 24 is shown, the control of
  • Shift cylinder 32 for the range group transmission 10 shows.
  • the shift cylinders 30 and 32 are supplied to the circuit of gears with a system pressure.
  • Shift cylinder 30 is a shift cylinder of the main transmission 8, the at least one synchronization S1 -S3 in
  • Main gear operated An activation of further synchronizations is possible depending on the gearbox version. It is discussed here only on the actuators 30, 32 for switching or synchronizing the gears. Actuators for the dialing process are not shown. Further switching cylinder in the switching system, z. For example for synchronizations in other transmission modules are possible.
  • the valve 34 serves to adjust the drive pressure for the actuators 30, 32, which is received by the pressure sensor 44.
  • the valves 36 and 38 are switching valves of the main transmission 8 and the valves 40 and 42 are switching valves of the range group transmission 10.
  • the exhaust air is discharged via the exhaust air line 46. Both shift cylinders 30 and 32 are in the neutral position. All work spaces of the shift cylinders 30 and 32 are vented and the piston is centered in the shift cylinders 30 and 32nd
  • Case 1 The piston of the shift cylinder 30 is to be retracted completely in a standard operating phase. This process has been identified as a switching operation with components that do not develop much noise. Valve 34 and valve 38 are therefore switched and the complete system pressure in the pressure line 28, for
  • valves 34, 38 Pressure connection of the valves 34, 38 and guided into the working space in the switching cylinder 30.
  • the shift cylinder 30 retracts and synchronizes until the gear is fully engaged.
  • the shift cylinder 32 remains in neutral position. After completion of the switching operation, all valves 34, 38 are returned to their original position.
  • Case 2 The piston of the shift cylinder 32 is to be completely extended in a standard operating phase and thereby switch a range group transmission 10.
  • this switching process particularly strongly noise-developing components were identified and an experimentally determined control pressure stored in the system.
  • the valve 34 and the valve 42 are actuated.
  • the system pressure is detected by the pressure sensor 44 and the pressure is controlled so that the stored minimum control pressure is not exceeded or fallen below.
  • the minimum drive pressure is fed into the pressure line 28, to the pressure port of the valves 34, 42 and into the working space in the shift cylinder 32.
  • the shift cylinder 32 extends and synchronizes until the gear is completely switched.
  • the shift cylinder 30 remains in the starting position. After completion of the switching operation, all valves 34, 42 are returned to their original position.
  • Case 3 A switching operation was initiated in a standard operating phase in which the piston of the shift cylinder 30 is to retract in the operating phase and the piston of the shift cylinder 32 is to extend completely.
  • Cylinder 32 were identified particularly strong noise-generating components. As a result, this operating phase was identified as having a particularly high degree of noise development and an experimentally determined activation pressure for the complete operating phase was stored in the system.
  • the valve 34 When the switching operation is started, the valve 34, the
  • Valve 36 and the valve 42 is actuated.
  • the system pressure is detected by the pressure sensor 44 and the pressure is controlled so that the stored minimum control pressure is not exceeded or fallen below.
  • the minimum drive pressure is fed into the pressure line 28, to the pressure port of the valves 34, 36 and 42 and into the working space of the shift cylinders 30 and 32.
  • the pistons of the shift cylinder 30 and shift cylinder 32 move parallel or successively in the direction of movement and
  • Case 4 The piston of the shift cylinder 30 is to be completely extended during a slow drive while switching a gear of the main transmission 8. In this switching process, no particularly strong noise-developing components were identified. However, since the operating phase itself is a low-noise operating phase, an experimentally determined activation pressure for this switching process was stored in the system.
  • the valve 34 and the valve 38 are operated.
  • the system pressure is detected by the pressure sensor 44 and regulated so that the stored minimum drive pressure is not over or is fallen short of.
  • the minimum drive pressure is fed into the pressure line 28, to the pressure port of the valves 34, 38 and into the working space in the shift cylinder 30.
  • the shift cylinder 30 extends and synchronizes until the gear is completely switched.
  • the shift cylinder 32 remains in the starting position. After completion of the

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

L'invention concerne un procédé de passage des rapports optimisé en termes de bruit dans une boîte de vitesses automatique (6) comportant des éléments de changement de vitesse (30, 32) actionnés par un fluide sous pression. Partant d'une pression du système prédéterminée dans le dispositif de changement de vitesse (24), le niveau de pression du dispositif de changement de vitesse (24) pour une manœuvre de changement de vitesse imminente est abaissé à une valeur qui reste suffisamment élevée pour une exécution fiable de la manœuvre de changement de vitesse.
PCT/EP2012/069310 2011-11-11 2012-10-01 Procédé de commande des processus de changement de vitesse dans une boîte de vitesses WO2013068175A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011086134.3 2011-11-11
DE102011086134A DE102011086134A1 (de) 2011-11-11 2011-11-11 Verfahren zur Steuerung von Schaltabläufen eines Getriebes

Publications (1)

Publication Number Publication Date
WO2013068175A1 true WO2013068175A1 (fr) 2013-05-16

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PCT/EP2012/069310 WO2013068175A1 (fr) 2011-11-11 2012-10-01 Procédé de commande des processus de changement de vitesse dans une boîte de vitesses

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DE (1) DE102011086134A1 (fr)
WO (1) WO2013068175A1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018118131A1 (fr) * 2016-12-22 2018-06-28 Eaton Corporation Système, procédé et appareil de mise en œuvre de transmission à haut rendement et à efficacité élevée
US10473542B2 (en) 2016-12-22 2019-11-12 Eaton Cummins Automated Transmission Technologies, Llc System, method, and apparatus for operating a high efficiency, high output transmission
USD866625S1 (en) 2017-02-28 2019-11-12 Eaton Cummins Automated Transmission Technologies, Llc Transmission housing
USD877221S1 (en) 2017-02-28 2020-03-03 Eaton Cummins Automated Transmission Technologies, Llc Lube assembly housing
US10584778B2 (en) 2016-12-22 2020-03-10 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission
US10647321B2 (en) 2016-12-22 2020-05-12 Eaton Cummins Automated Transmission Technologies High efficiency, high output transmission
USD906389S1 (en) 2019-09-13 2020-12-29 Eaton Cummins Automated Transmission Technologies, Llc Transmission housing assembly
USD914073S1 (en) 2017-02-28 2021-03-23 Eaton Cummins Automated Transmission Technologies, Llc Transmission rear housing
USD915485S1 (en) 2019-09-13 2021-04-06 Eaton Cummins Automated Transmission Technologies, Llc Transmission rear housing
US11105412B2 (en) 2016-12-22 2021-08-31 Eaton Cummins Automated Transmission Technologies Llc System, method, and apparatus for managing transmission shutdown operations
USD930725S1 (en) 2019-09-13 2021-09-14 Eaton Cummins Automated Transmission Technologies, Llc Transmission main housing
USD933712S1 (en) 2017-02-28 2021-10-19 Eaton Cummins Automated Transmission Technologies, Llc Clutch housing
USD966371S1 (en) 2019-09-13 2022-10-11 Eaton Cummins Automated Transmission Technologies, Llc Transmission intermediate plate

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DE102015201961A1 (de) 2015-02-04 2016-08-04 Volkswagen Aktiengesellschaft Verfahren zum Betrieb einer Verdrängerpumpe sowie eine hierfür bestimmte Verdrängerpumpe
CN104930137B (zh) 2015-05-29 2018-07-27 精进电动科技股份有限公司 自动变速器
DE102019215037A1 (de) * 2019-09-30 2021-04-01 Zf Friedrichshafen Ag Verfahren zur Steuerung eines Schaltvorganges in einem Getriebe
CN113007344A (zh) * 2021-03-10 2021-06-22 东风商用车有限公司 一种商用车全时四驱分动箱控制系统

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WO1997005410A1 (fr) * 1995-07-26 1997-02-13 Ap Kongsberg Holdings Limited Mecanismes de selection du rapport de transmission
US6070117A (en) * 1997-06-30 2000-05-30 Aisin Seiki Kabushiki Kaisha Speed change control system for synchromesh type transmission
WO2006050993A1 (fr) * 2004-11-15 2006-05-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Dispositif pour appliquer une pression a un actionneur de piston
DE102005011273A1 (de) 2005-03-11 2006-09-21 Zf Friedrichshafen Ag Verfahren zur Steuerung von Schaltabläufen in einem automatisierten Schaltgetriebe in Vorgelegebauweise
EP2068046A2 (fr) * 2007-12-05 2009-06-10 Nissan Motor Co., Ltd. Dispositif de détection de position pour un mécanisme de sélection de vitesse de transmission automobile
GB2471989A (en) * 2009-05-05 2011-01-26 Gm Global Tech Operations Inc Speed and pressure control of a synchronizer in a gearbox

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US6145398A (en) * 1998-02-20 2000-11-14 New Venture Gear, Inc. Electronically controlled shift system for a manual transmission
DE10033811B4 (de) * 2000-07-12 2006-07-27 Daimlerchrysler Ag Schalteinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005410A1 (fr) * 1995-07-26 1997-02-13 Ap Kongsberg Holdings Limited Mecanismes de selection du rapport de transmission
US6070117A (en) * 1997-06-30 2000-05-30 Aisin Seiki Kabushiki Kaisha Speed change control system for synchromesh type transmission
WO2006050993A1 (fr) * 2004-11-15 2006-05-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Dispositif pour appliquer une pression a un actionneur de piston
DE102005011273A1 (de) 2005-03-11 2006-09-21 Zf Friedrichshafen Ag Verfahren zur Steuerung von Schaltabläufen in einem automatisierten Schaltgetriebe in Vorgelegebauweise
EP2068046A2 (fr) * 2007-12-05 2009-06-10 Nissan Motor Co., Ltd. Dispositif de détection de position pour un mécanisme de sélection de vitesse de transmission automobile
GB2471989A (en) * 2009-05-05 2011-01-26 Gm Global Tech Operations Inc Speed and pressure control of a synchronizer in a gearbox

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US11320043B2 (en) 2016-12-22 2022-05-03 Eaton Cummins Automated Transmission Technologies, Llc Coolerless high efficiency, high output transmission
US10895321B2 (en) 2016-12-22 2021-01-19 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission
US12000465B2 (en) 2016-12-22 2024-06-04 Eaton Cummins Automated Transmission Technologies Llc High efficiency, high output transmission having ease of integration features
US10563753B2 (en) 2016-12-22 2020-02-18 Eaton Cummins Automated Transmission Technologies, Llc System, method, and apparatus for operating a high efficiency, high output transmission
US11773964B2 (en) 2016-12-22 2023-10-03 Eaton Cummins Automated Transmission Technologies System, method, and apparatus for operating a high efficiency, high output transmission
US10584778B2 (en) 2016-12-22 2020-03-10 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission
US11592090B2 (en) 2016-12-22 2023-02-28 Eaton Cummins Automated Transmission Technologies Llc High efficiency, high output transmission having ease of integration features
US10647321B2 (en) 2016-12-22 2020-05-12 Eaton Cummins Automated Transmission Technologies High efficiency, high output transmission
US10737696B2 (en) 2016-12-22 2020-08-11 Eaton Cummins Automated Transmission Technologies, Llc System, method, and apparatus for operating a high efficiency, high output transmission
US10851880B2 (en) 2016-12-22 2020-12-01 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission having ease of integration features
US10859145B2 (en) 2016-12-22 2020-12-08 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission with linear clutch actuator
US10859158B2 (en) 2016-12-22 2020-12-08 Eaton Cummins Automated Transmission Tech., Llc System, method, and apparatus for operating a high efficiency, high output transmission
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US11499612B2 (en) 2016-12-22 2022-11-15 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission having ease of integration features
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US11493125B2 (en) 2016-12-22 2022-11-08 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission
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US11105412B2 (en) 2016-12-22 2021-08-31 Eaton Cummins Automated Transmission Technologies Llc System, method, and apparatus for managing transmission shutdown operations
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US11391352B2 (en) 2016-12-22 2022-07-19 Eaton Cummins Automated Transmission Technologies, Llc High efficiency, high output transmission
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US11313456B2 (en) 2016-12-22 2022-04-26 Eaton Cummins Automated Transmission Technologies, Llc Clutch control for a high efficiency, high output transmission having improved response and position control
WO2018118131A1 (fr) * 2016-12-22 2018-06-28 Eaton Corporation Système, procédé et appareil de mise en œuvre de transmission à haut rendement et à efficacité élevée
US11320044B2 (en) 2016-12-22 2022-05-03 Eaton Cummins Automated Transmission Technologies, Llc Pneumatic transmission control
US11346441B2 (en) 2016-12-22 2022-05-31 Eaton Cummins Automated Transmission Technologies, Llc High efficiency high output transmission with linear clutch actuator and system, method, and apparatus for control
USD933712S1 (en) 2017-02-28 2021-10-19 Eaton Cummins Automated Transmission Technologies, Llc Clutch housing
USD919684S1 (en) 2017-02-28 2021-05-18 Eaton Cummins Automated Transmission Technologies, Llc Transmission rear housing
USD914073S1 (en) 2017-02-28 2021-03-23 Eaton Cummins Automated Transmission Technologies, Llc Transmission rear housing
USD881248S1 (en) 2017-02-28 2020-04-14 Eaton Cummins Automated Transmission Technologies, Llc Lube assembly housing
USD877221S1 (en) 2017-02-28 2020-03-03 Eaton Cummins Automated Transmission Technologies, Llc Lube assembly housing
USD866625S1 (en) 2017-02-28 2019-11-12 Eaton Cummins Automated Transmission Technologies, Llc Transmission housing
USD930725S1 (en) 2019-09-13 2021-09-14 Eaton Cummins Automated Transmission Technologies, Llc Transmission main housing
USD915485S1 (en) 2019-09-13 2021-04-06 Eaton Cummins Automated Transmission Technologies, Llc Transmission rear housing
USD966371S1 (en) 2019-09-13 2022-10-11 Eaton Cummins Automated Transmission Technologies, Llc Transmission intermediate plate
USD906389S1 (en) 2019-09-13 2020-12-29 Eaton Cummins Automated Transmission Technologies, Llc Transmission housing assembly

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