Load modeling and emulation for an earthmoving vehicle powertrain
Carter, D.
Alleyne, A.
Dept. of Mech. & Ind. Eng., Illinois Univ., Urbana, IL, USA;
This paper appears in: American Control Conference, 2003. Proceedings of the 2003
Publication Date: 4-6 June 2003
Volume: 6,
On page(s): 4963- 4968 vol.6
ISSN: 0743-1619
ISBN: 0-7803-7896-2
INSPEC Accession Number: 7839919
Digital Object Identifier: 10.1109/ACC.2003.1242510
Current Version Published: 2003-11-03
Abstract
Previously an earthmoving vehicle powertrain simulator (EVPS) was built at the University of Illinois to investigate generic power optimization of multi-load hydrostatic transmissions. In the current work, nonlinear load models for an earthmoving vehicle powertrain are developed for a wheel loader and emulated using the EVPS. The load models are to be utilized in the overall development and evaluation of controllers for multi-load powertrains. The three load models include steering, drive, and implement systems. The hardware-in-the-loop setup of the EVPS allows for two-stage pressure relief valves to be used in coordination with the real-time simulations of the load models to emulate powertrain loads. Simulation and emulation results from the load models are presented for a 180-degree loading cycle. Although this was done for earthmoving vehicles, it is felt that this hardware-in-the-loop approach with load emulation could be used in many automotive or other transportation applications.
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