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Design, Modeling and Control of a Novel Architecture for Automatic Transmissions

[+] Author Affiliations
Virinchi Mallela, Zongxuan Sun

University of Minnesota - Twin Cities, Minneapolis, MI

Paper No. DSCC2013-3985, pp. V001T11A006; 9 pages
doi:10.1115/DSCC2013-3985
From:
  • ASME 2013 Dynamic Systems and Control Conference
  • Volume 1: Aerial Vehicles; Aerospace Control; Alternative Energy; Automotive Control Systems; Battery Systems; Beams and Flexible Structures; Biologically-Inspired Control and its Applications; Bio-Medical and Bio-Mechanical Systems; Biomedical Robots and Rehab; Bipeds and Locomotion; Control Design Methods for Adv. Powertrain Systems and Components; Control of Adv. Combustion Engines, Building Energy Systems, Mechanical Systems; Control, Monitoring, and Energy Harvesting of Vibratory Systems
  • Palo Alto, California, USA, October 21–23, 2013
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5612-3
  • Copyright © 2013 by ASME

abstract

Automotive transmissions are required to efficiently transfer power from the engine to the wheels. Automatic transmissions are one of the most widely used transmission systems. This transmission houses a hydraulic system that is used to actuate the clutch system to realize different gear ratios. Currently, these clutches are primarily controlled in open-loop using many valves in a complex control architecture designed specifically for a given transmission system in order to perform precise pressure and flow control. To meet the increasing demand for higher fuel economy, transmissions with greater number of gear ratios are being introduced. The hydraulic architecture is becoming increasingly complicated with more clutches and control elements. With the advancement of MEMS technology, the sensor-based direct feedback control of clutches becomes possible. This paper first analyzes the current architecture of transmission hydraulic actuation and then presents a new architecture for the feedback-based clutches. The proposed architecture is further validated through experiments using a hardware-in-the-loop system.

Copyright © 2013 by ASME

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