WO2013026278A1 - Machine de travaux publics comportant un système de transmission hydromécanique, son système et son procédé de commande de changement de rapport - Google Patents

Machine de travaux publics comportant un système de transmission hydromécanique, son système et son procédé de commande de changement de rapport Download PDF

Info

Publication number
WO2013026278A1
WO2013026278A1 PCT/CN2012/073885 CN2012073885W WO2013026278A1 WO 2013026278 A1 WO2013026278 A1 WO 2013026278A1 CN 2012073885 W CN2012073885 W CN 2012073885W WO 2013026278 A1 WO2013026278 A1 WO 2013026278A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotational speed
disk
mechanical transmission
hydraulic
driven
Prior art date
Application number
PCT/CN2012/073885
Other languages
English (en)
Chinese (zh)
Inventor
林涛
谢金龙
肖峰
Original Assignee
湖南三一智能控制设备有限公司
三一重工股份有限公司
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 湖南三一智能控制设备有限公司, 三一重工股份有限公司 filed Critical 湖南三一智能控制设备有限公司
Publication of WO2013026278A1 publication Critical patent/WO2013026278A1/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
    • F16H61/04—Smoothing ratio shift
    • F16H61/0403—Synchronisation before shifting
    • 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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/50—Signals to an engine or motor
    • F16H63/502—Signals to an engine or motor for smoothing gear shifts
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/36—Inputs being a function of speed
    • F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
    • F16H2059/462—Detecting synchronisation, i.e. speed difference is approaching zero
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities
    • F16H2306/54—Synchronizing engine speed to transmission input speed

Definitions

  • the present invention relates to the field of construction machinery, and more particularly to a hydraulic-mechanical transmission engineering machine and a shift control system and method thereof.
  • the power transmission methods of construction machinery usually include hydraulic transmission, mechanical transmission and hydraulic-mechanical transmission.
  • the hydraulic-mechanical transmission control system is a common transmission mode for heavy construction machinery, and its power transmission route is usually: engine-hydraulic pump-drive motor-transmission bridge-drive wheel.
  • the heavy-duty construction machinery of the existing hydraulic-mechanical transmission control system usually adopts the traditional shifting method when performing the shifting operation, that is, according to the following steps:
  • the driver operates the relevant operating device to issue a shifting command;
  • the driving disc connected to the output end of the driving motor in the gearbox is disengaged from the first driven disc corresponding to the current gear position;
  • the driving disc is engaged with the second driven disc corresponding to the target gear position,
  • the block operation is completed.
  • This sequence of operation can be achieved by switching the high-speed gear to the low-speed gear, or switching the low-speed gear to the high-speed gear to ensure that the construction machinery travels at the actual speed required.
  • the drive disc is completely engaged with the second driven disc after being disengaged from the first driven disc.
  • the rotational speed ⁇ is still equal to the rotational speed nl of the first driven disk, and the rotational speed is different from the n2 of the second driven disk rotational speed, so that the two gears with different rotational speeds mesh with each other, which will generate a larger
  • the impact force causes the shifting process to be uneven, which seriously affects the shift quality and the quality of the engineering work of the construction machinery.
  • the technical problem to be solved by the present invention is to provide a construction machine for hydraulic-mechanical transmission
  • the shift control method makes the shifting process of the construction machinery produce a small impact force, thereby enhancing the stability of the shifting process, improving the shift quality and the work quality of the construction machine.
  • Another technical problem to be solved by the present invention is to provide a shift control system for a hydraulic-mechanical transmission engineering machine, and a hydraulic-mechanical transmission engineering machine including the shift control system.
  • the present invention provides a shift control method for a hydraulic-mechanical transmission engineering machine, comprising the following steps:
  • step 4 adjusting the output rotational speed of the drive motor to approach the rotational speed nl of the second driven disk; 5) determining the difference between the current rotational speed ⁇ of the drive disk and the rotational speed nl of the second driven disk Whether the absolute value is less than a predetermined value, and if so, the drive disc and the second driven disc are fully engaged to complete the shifting operation; if not, proceed to step 4).
  • the step 4) engages the drive disc and the second driven disc portion while adjusting the output rotational speed of the drive motor to approach the rotational speed nl of the second driven disc.
  • the predetermined value ranges from 50 r/min to 150 r/min.
  • the predetermined value is specifically 100 r/min.
  • the invention provides a shift control method for a hydraulic-mechanical transmission engineering machine, comprising the following steps: First, a shift command is issued; secondly, a drive disc connected to the drive motor in the gearbox and corresponding to the current gear position The first driven disk is disengaged; then, the rotational speed nl of the second driven disk corresponding to the target gear is calculated; finally, the output rotational speed of the driving motor is adjusted to approach the rotational speed nl of the second driven disk to determine the driving disk Whether the absolute value of the difference between the current rotational speed ⁇ and the rotational speed nl of the second driven disk is less than a predetermined value, and if so, the drive disk and the second driven disk are fully engaged to complete the shifting operation; if not, proceed to step 4 ).
  • the driving disk speed ⁇ is continuously reduced until nO - nl is less than a predetermined value, and the driving disk and the second driven disk are meshed to complete the shifting; when the low speed gear is switched to the high speed gear, that is, before the driving motor adjusts the speed
  • the rotational speed ⁇ is less than nl
  • the driving disk rotational speed ⁇ is adjusted to keep it constant Increasing, until nl - nO is less than the predetermined value, the driving disk and the second driven disk are engaged to complete the shifting.
  • the shift control method provided by the present invention reduces the shift shock, enhances the smoothness of the shifting process, improves the shift quality and the work quality of the construction machine, and The service life of the drive plate and each driven disk is enhanced.
  • the invention also provides a shift control system for a hydraulic-mechanical transmission engineering machine, comprising an information acquisition unit and a control unit,
  • the information acquiring unit is configured to acquire a rotation speed n1 of the second driven disk corresponding to the target gear; the control unit is configured to adjust an output rotation speed of the driving motor to be close to the rotation speed n1 of the second driven disk; And determining whether the absolute value of the difference between the current rotational speed ⁇ of the driving disk and the rotational speed n1 of the second driven disk is less than a predetermined value, and if so, engaging the driving disk and the second driven disk to complete The shifting operation, if not, continues to adjust the output speed of the drive motor.
  • the controller engages the drive disc and the second driven disc portion while adjusting the output rotational speed of the drive motor to approach the rotational speed nl of the second driven disc.
  • the predetermined value ranges from 50 r/min to 150 r/min.
  • the predetermined value is specifically 100 r/min.
  • the present invention also provides a hydraulic-mechanical transmission engineering machine comprising an engine, a hydraulic pump, a drive motor and a gearbox that are sequentially connected; and a shift control system as described above.
  • the shift control method has the above technical effects
  • the shift control system corresponding to the shift control method also has the same technical effect
  • the hydraulic-mechanical transmission engineering machine including the shift system also has corresponding Technical effects will not be described here.
  • FIG. 1 is a schematic structural view of a specific embodiment of a shift control method provided by the present invention.
  • FIG. 2 is a schematic structural view of another specific embodiment of a shift control method provided by the present invention.
  • Fig. 3 is a schematic structural view showing a specific embodiment of a shift control system provided by the present invention.
  • the core of the invention is to provide a shift control method for a hydraulic-mechanical transmission engineering machine, which makes the shifting process of the construction machine generate a small impact force, thereby enhancing the stability of the shifting process and improving Shift quality and work quality of construction machinery.
  • Another core of the present invention is to provide a shift control system for a hydraulic-mechanical transmission engineering machine and a hydraulic-mechanical transmission engineering machine including the shift control system.
  • FIG. 1 is a schematic structural diagram of a specific implementation manner of a shift control method according to the present invention.
  • the shift control method of the construction machine for hydraulic-mechanical transmission mainly comprises the following steps:
  • S14 adjusting the output rotation speed of the driving motor to approach the rotation speed n1 of the second driven disc; S15: determining whether the absolute value of the difference between the current rotation speed ⁇ of the driving disc and the rotation speed n1 of the second driven disc is less than a predetermined value. If yes, the drive disc and the second driven disc are fully engaged to complete the shifting operation; if not, proceed to step S14.
  • the driving disk speed ⁇ is continuously reduced until nO - nl is less than a predetermined value, and the driving disk and the second driven disk are meshed to complete the shifting; when the low speed gear is switched to the high speed gear, that is, before the driving motor adjusts the speed
  • the rotational speed ⁇ is less than nl
  • the driving disk rotational speed ⁇ is adjusted to be continuously increased until nl - nO is less than a predetermined value, and the driving disk and the second driven disk are engaged to complete the shifting.
  • the shift control method provided by the present invention reduces the shift shock, enhances the smoothness of the shifting process, improves the shift quality and the work quality of the construction machine, and The service life of the drive plate and each driven disk is enhanced.
  • the shift control method for reducing the impact force of the shifting process is All should fall within the scope of protection of the present invention.
  • FIG. 2 is a schematic structural diagram of another specific implementation manner of a shift control method according to the present invention.
  • the shift control method provided by the present invention may further include the following steps:
  • step S25 determining whether the absolute value of the difference between the current rotational speed ⁇ of the driving disk and the rotational speed nl of the second driven disk is less than a predetermined value, and if so, fully engaging the driving disk and the second driven disk to complete the shifting operation; Then proceed to step S24.
  • the predetermined value in the above shift control method ranges from 50 r/min.
  • the predetermined value may be 100r/min.
  • FIG. 3 is a specific implementation manner of a shift control system provided by the present invention. Schematic diagram of the structure.
  • the present invention further provides a shift control system for a hydraulic-mechanical transmission engineering machine, comprising an information acquisition unit and a control unit, wherein the information acquisition unit is configured to issue a shift command and After the driving disk in the gearbox and the first driven disk corresponding to the current gear position are disengaged, the rotation speed nl of the second driven disk corresponding to the target gear is obtained; the control unit is configured to adjust the output rotation speed of the driving motor to The rotation speed nl of the second driven disk is close to; and determining whether the absolute value of the difference between the current rotational speed ⁇ of the driving disk and the rotational speed nl of the second driven disk is less than a predetermined value, and if so, engaging the driving disk with the second driven disk , Complete the shifting operation, if not, continue to adjust the output speed of the drive motor.
  • the information acquisition unit is configured to issue a shift command and After the driving disk in the gearbox and the first driven disk corresponding to the current gear position are disengaged, the rotation speed nl of the second driven disk
  • the controller adjusts the output rotational speed of the drive motor to bring the drive disc and the second driven disc portion into engagement while approaching the rotational speed nl of the second driven disc.
  • the predetermined value ranges from 50 r/min to 150 r/min. Specifically, the predetermined value may be specifically 100 r/min.
  • the present invention also provides a hydraulic-mechanical transmission engineering machine comprising an engine, a hydraulic pump, a drive motor and a gearbox that are sequentially connected; and a shift control system as described above.
  • the shift control method has the above technical effects
  • the shift control system corresponding to the shift control method also has the same technical effect
  • the hydraulic-mechanical transmission engineering machine including the shift system also has corresponding Technical effects will not be described here.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

L'invention porte sur un procédé de commande de changement de rapport pour une machine de travaux publics possédant un système de transmission hydromécanique, le procédé consistant à : premièrement, émettre un ordre de changement de rapport ; deuxièmement, séparer un disque d'entraînement relié à un moteur d'entraînement d'un premier disque entraîné correspondant à un rapport actuel dans la boîte de vitesses ; puis calculer la vitesse de rotation n1 d'un second disque entraîné qui correspond au rapport cible ; enfin ajuster la vitesse de rotation de sortie du moteur d'entraînement et la rapprocher de la vitesse de rotation n1 du second disque entraîné, accoupler le second disque d'entraînement et le second disque entraîné entièrement lorsque la valeur absolue de la différence entre la vitesse de rotation n0 du disque d'entraînement et la vitesse de rotation n1 du second disque entraîné est inférieure à une valeur prédéterminée, l'opération de changement de rapport est réalisée. La collision du changement de rapport est réduite, la stabilisation et la qualité de changement pendant l'opération de changement sont améliorées et la durée de service du disque d'entraînement et du disque entraîné est prolongée. L'invention décrit aussi un système de commande du changement de rapport qui correspond audit procédé de commande de changement de rapport et une machine de travaux publics équipée d'une transmission hydrodynamique qui comprend le système de changement de rapport.
PCT/CN2012/073885 2011-08-23 2012-04-12 Machine de travaux publics comportant un système de transmission hydromécanique, son système et son procédé de commande de changement de rapport WO2013026278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110242282.2 2011-08-23
CN2011102422822A CN102338215A (zh) 2011-08-23 2011-08-23 液压-机械传动的工程机械及其换挡控制系统和方法

Publications (1)

Publication Number Publication Date
WO2013026278A1 true WO2013026278A1 (fr) 2013-02-28

Family

ID=45514102

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/073885 WO2013026278A1 (fr) 2011-08-23 2012-04-12 Machine de travaux publics comportant un système de transmission hydromécanique, son système et son procédé de commande de changement de rapport

Country Status (2)

Country Link
CN (1) CN102338215A (fr)
WO (1) WO2013026278A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102338215A (zh) * 2011-08-23 2012-02-01 三一重工股份有限公司 液压-机械传动的工程机械及其换挡控制系统和方法
CN102829178A (zh) * 2012-09-06 2012-12-19 三一重工股份有限公司 液压马达传动系统换档控制方法
CN110886839B (zh) * 2019-12-11 2021-05-28 山推工程机械股份有限公司 一种推土机换挡控制方法、装置以及计算机存储介质
CN113898732B (zh) * 2021-09-26 2022-11-15 柳工柳州传动件有限公司 一种换挡控制方法、换挡控制系统及装载机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160658A (ja) * 1982-03-17 1983-09-24 Toyota Motor Corp 自動変速機の変速制御装置
US5088354A (en) * 1989-11-30 1992-02-18 Toyota Jidosha Kabushiki Kaisha Shift control system and method for automatic transmissions
CN1609479A (zh) * 2004-09-29 2005-04-27 中国第一汽车集团公司 前置式并联混合动力汽车电机主动同步换档方法
CN101878386A (zh) * 2007-12-06 2010-11-03 Zf腓德烈斯哈芬股份公司 用于使汽车传动系运行的方法
CN102338215A (zh) * 2011-08-23 2012-02-01 三一重工股份有限公司 液压-机械传动的工程机械及其换挡控制系统和方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100506621C (zh) * 2003-01-13 2009-07-01 财团法人工业技术研究院 手自排变速箱控制方法
US20060219509A1 (en) * 2005-03-31 2006-10-05 Caterpillar Inc. System and method for controlling engagement of a clutch
JP2010209947A (ja) * 2009-03-06 2010-09-24 Nissan Motor Co Ltd 自動変速機の制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58160658A (ja) * 1982-03-17 1983-09-24 Toyota Motor Corp 自動変速機の変速制御装置
US5088354A (en) * 1989-11-30 1992-02-18 Toyota Jidosha Kabushiki Kaisha Shift control system and method for automatic transmissions
CN1609479A (zh) * 2004-09-29 2005-04-27 中国第一汽车集团公司 前置式并联混合动力汽车电机主动同步换档方法
CN101878386A (zh) * 2007-12-06 2010-11-03 Zf腓德烈斯哈芬股份公司 用于使汽车传动系运行的方法
CN102338215A (zh) * 2011-08-23 2012-02-01 三一重工股份有限公司 液压-机械传动的工程机械及其换挡控制系统和方法

Also Published As

Publication number Publication date
CN102338215A (zh) 2012-02-01

Similar Documents

Publication Publication Date Title
KR101755818B1 (ko) 전기차 변속기
US10099693B2 (en) Control method of dual clutch transmission for hybrid electric vehicle and control system for the same
CN104015600A (zh) 双电机纯电动汽车无离合器自动变速机构
WO2013026278A1 (fr) Machine de travaux publics comportant un système de transmission hydromécanique, son système et son procédé de commande de changement de rapport
KR101294172B1 (ko) Ａｍｔ 하이브리드 차량의 변속제어 방법
CN108216180B (zh) 混合动力车辆的换挡控制方法
CN106564492B (zh) 一种换挡转速的控制方法、装置及tcu
JP2012255539A (ja) 車両のｄｃｔ制御方法
CN110562238A (zh) 混合动力汽车发动机自动启动控制方法
CN108394412B (zh) 一种混合动力汽车的换挡控制系统及方法
CN101987571A (zh) 混合动力轿车无动力中断换档控制方法
KR101305842B1 (ko) 차량의 더블클러치변속기 제어방법
CN109372981B (zh) 一种车辆换挡控制系统、行车换挡控制方法及装载机
CN102310852B (zh) 一种车用双离合器动力藕合同步器的换档控制方法及装置
CN111251906B (zh) 一种双电机驱动系统及其换挡扭矩控制方法、车辆
JP6111652B2 (ja) 電動車両の変速制御装置
CN109552311B (zh) 基于多模制动器的混合动力汽车的换挡控制方法
KR101755902B1 (ko) 전기차 변속기 제어방법
CN202001562U (zh) 采用单向离合器的dct
JP2015077044A (ja) 電動車両の変速制御装置
JP5868095B2 (ja) 車両変速機の制御方法
JP2014077533A (ja) 自動化手動変速機の同期制御方法
CN204755782U (zh) 一种四挡助力变速箱
KR101887777B1 (ko) Dct 차량의 변속 제어방법
CN104763780A (zh) 纯电动大巴驱动系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12825223

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12825223

Country of ref document: EP

Kind code of ref document: A1