YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASME
    • Journal of Dynamic Systems, Measurement, and Control
    • View Item
    •   YE&T Library
    • ASME
    • Journal of Dynamic Systems, Measurement, and Control
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Optimization of Shift Control Trajectories for Step Gear Automatic Transmissions

    Source: Journal of Dynamic Systems, Measurement, and Control:;2017:;volume( 139 ):;issue: 006::page 61005
    Author:
    Čorić, Mirko
    ,
    Ranogajec, Vanja
    ,
    Deur, Joško
    ,
    Ivanović, Vladimir
    ,
    Eric Tseng, H.
    DOI: 10.1115/1.4035403
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: New generation of torque converter automatic transmissions (ATs) include a large number of gears for improved fuel economy and performance. Control requirements for such a transmission become more demanding, which calls for the development of new shift control optimization tools. A pseudospectral collocation method is used in the paper to optimize AT clutch and engine control trajectories for comfortable and efficient shifts. Since the optimization method requires a smooth formulation of plant model, the emphasized clutch model nonlinearity around the zero slip speed has been found to be a major difficulty to be resolved through proper modeling of the optimization problem. Therefore, different approaches of describing the friction behavior are considered and assessed, starting from simple static models, through dynamics models, toward torque-source approaches subject to the clutch passivity constraint. Apart from the conventional optimization approach based on minimizing the cost function (including the vehicle jerk and clutch energy loss terms), the so-called feasibility approach based on restricting the cost through an inequality constraint is considered, as well. The proposed optimization method has been verified on a characteristic example of 10-speed AT for both single- and double-transition shifts (DTSs). It has been found out that the clutch passivity constraint-based approach results in numerically most efficient optimizations for a wide range of shift tasks and scenarios.
    • Download: (2.905Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Optimization of Shift Control Trajectories for Step Gear Automatic Transmissions

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4236644
    Collections
    • Journal of Dynamic Systems, Measurement, and Control

    Show full item record

    contributor authorČorić, Mirko
    contributor authorRanogajec, Vanja
    contributor authorDeur, Joško
    contributor authorIvanović, Vladimir
    contributor authorEric Tseng, H.
    date accessioned2017-11-25T07:20:46Z
    date available2017-11-25T07:20:46Z
    date copyright2017/23/3
    date issued2017
    identifier issn0022-0434
    identifier otherds_139_06_061005.pdf
    identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4236644
    description abstractNew generation of torque converter automatic transmissions (ATs) include a large number of gears for improved fuel economy and performance. Control requirements for such a transmission become more demanding, which calls for the development of new shift control optimization tools. A pseudospectral collocation method is used in the paper to optimize AT clutch and engine control trajectories for comfortable and efficient shifts. Since the optimization method requires a smooth formulation of plant model, the emphasized clutch model nonlinearity around the zero slip speed has been found to be a major difficulty to be resolved through proper modeling of the optimization problem. Therefore, different approaches of describing the friction behavior are considered and assessed, starting from simple static models, through dynamics models, toward torque-source approaches subject to the clutch passivity constraint. Apart from the conventional optimization approach based on minimizing the cost function (including the vehicle jerk and clutch energy loss terms), the so-called feasibility approach based on restricting the cost through an inequality constraint is considered, as well. The proposed optimization method has been verified on a characteristic example of 10-speed AT for both single- and double-transition shifts (DTSs). It has been found out that the clutch passivity constraint-based approach results in numerically most efficient optimizations for a wide range of shift tasks and scenarios.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleOptimization of Shift Control Trajectories for Step Gear Automatic Transmissions
    typeJournal Paper
    journal volume139
    journal issue6
    journal titleJournal of Dynamic Systems, Measurement, and Control
    identifier doi10.1115/1.4035403
    journal fristpage61005
    journal lastpage061005-13
    treeJournal of Dynamic Systems, Measurement, and Control:;2017:;volume( 139 ):;issue: 006
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian