State of Charge Estimator Design for a Gas Charged Hydraulic Accumulator-Reference-Cited by-同舟云学术

State of Charge Estimator Design for a Gas Charged Hydraulic Accumulator

Published:2015-06-01 Issue:6 Volume:137 Page:
ISSN:0022-0434
Container-title:Journal of Dynamic Systems, Measurement, and Control
language:en
Short-container-title:

Author:

Pfeffer Andreas¹,Glück Tobias¹,Kemmetmüller Wolfgang²,Kugi Andreas³

Affiliation:

1. Automation and Control Institute, Vienna University of Technology, Gußhausstraße 27-29/376, Vienna 1040, Austria e-mail:

2. Assistant Professor Automation and Control Institute, Vienna University of Technology, Gußhausstraße 27-29/376, Vienna 1040, Austria e-mail:

3. Professor Automation and Control Institute, Vienna University of Technology, Gußhausstraße 27-29/376, Vienna 1040, Austria e-mail:

Abstract

The gas charged hydraulic accumulators under consideration are used as energy storage devices in automotive hydraulic hybrid systems. The knowledge of the state of charge (SOC) is of utmost importance for an efficient energy management of the hybrid drive-train. Since the direct measurement of the SOC is difficult and costly, an SOC estimator design is presented based on a mathematical model of the gas charged hydraulic accumulator. Two different SOC estimation strategies, a signal-based approach and an Extended Kalman-filter, are presented and compared with each other. The performance of the estimators is validated by means of measurement results of a test driving cycle.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/dynamicsystems/article-pdf/doi/10.1115/1.4029407/6119104/ds_137_06_061014.pdf

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