Nonlinear force feedback control of piezoelectric-hydraulic pump actuator for automotive transmission shift control

Gi-Woo Kim; K. W. Wang

doi:10.1117/12.774878

1 April 2008 Nonlinear force feedback control of piezoelectric-hydraulic pump actuator for automotive transmission shift control

Gi-Woo Kim, K. W. Wang

Author Affiliations +

Proceedings Volume 6930, Industrial and Commercial Applications of Smart Structures Technologies 2008; 69300A (2008) https://doi.org/10.1117/12.774878
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

In recent years, researchers have investigated the feasibility of utilizing piezoelectric-hydraulic pump based actuation systems for automotive transmission controls. This new concept could eventually reduce the complexity, weight, and fuel consumption of the current transmissions. In this research, we focus on how to utilize this new approach on the shift control of automatic transmissions (AT), which generally requires pressure profiling for friction elements during the operation. To illustrate the concept, we will consider the 1→ 2 up shift control using band brake friction elements. In order to perform the actuation force tracking for AT shift control, nonlinear force feedback control laws are designed based on the sliding mode theory for the given nonlinear system. This paper will describe the modeling of the band brake actuation system, the design of the nonlinear force feedback controller, and simulation and experimental results for demonstration of the new concept.

Citation Download Citation

Gi-Woo Kim and K. W. Wang "Nonlinear force feedback control of piezoelectric-hydraulic pump actuator for automotive transmission shift control", Proc. SPIE 6930, Industrial and Commercial Applications of Smart Structures Technologies 2008, 69300A (1 April 2008); https://doi.org/10.1117/12.774878

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