Abstract
To investigate generic power optimization problems of hydrostatic transmissions, an Earthmoving Vehicle Power-train Simulator (EVPS) was built at the University of Illinois. A model reference load controller is designed to simulate different load dynamics for this "hardware-in-the-loop" test-bed. A two-stage pressure relief valve serves as an actuator to change the load loop pressure, thus to control the resistance on a hydraulic motor. The actuator dynamics result in a zero in such a load control problem, which limits the performance. The zero can be avoided by using an online simulation method. A Least Square Estimator as an adaptation updates plant parameters in real time to improve the online simulation accuracy. Simulation and experimental results of the load controller for a traction load reference model are presented. Relevant models of the hydraulic drive, the pressure valve and the traction load are also included.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3949-3954 |
| Number of pages | 6 |
| Journal | Proceedings of the American Control Conference |
| Volume | 5 |
| State | Published - 2001 |
| Event | 2001 American Control Conference - Arlington, VA, United States Duration: Jun 25 2001 → Jun 27 2001 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering