Modeling and nonlinear parameter identification for hydraulic servo-systems with switching properties

被引:14
作者
Maier, Clemens C. [1 ]
Schroeders, Simon [2 ]
Ebner, Wolfgang [3 ]
Koester, Marius [2 ]
Fidlin, Alexander [2 ]
Hametner, Christoph [4 ]
机构
[1] TU Wien, Inst Mech & Mechatron, Div Control & Proc Automat, Vienna, Austria
[2] Karlsruhe Inst Technol, Inst Engn Mech, Chair Dynam Mechatron, Karlsruhe, Germany
[3] AVL List GmbH, Div Powertrain Engn, Graz, Austria
[4] TU Wien, Christian Doppler Lab Innovat Control & Monitorin, Vienna, Austria
关键词
Hydraulic servo-system; Nonlinear modeling; Nonlinear parameter identification; Particle swarm optimization (PSO); Switching behaviour; Dedicated hybrid transmission (DHT); CLUTCH; VALVE;
D O I
10.1016/j.mechatronics.2019.05.005
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Today's automotive industry faces challenges in reducing emissions to comply with ever tightening statutory provisions. The future is set to provide cleaner vehicles which, on the one hand, reduce the required energy consumption while on the other hand are fit to fulfill customer preferences with regard to driving performance. As a result, the design and control of automotive components in the drive train are reconsidered. This paper treats the modeling and parameter identification of a hydraulic circuit for clutch actuation in automatic transmissions (AT) or dedicated hybrid transmissions (DHT). The examined hydraulic servo-system's function is to provide the necessary pressure and volume flow for clutch actuation without usage of a hydraulic accumulator. Physical modeling and parameter identification is executed using testbed measurements of an according prototype hardware, aiming to contribute in finding a way towards destruction free identification of hydraulic systems. The nonlinear identification for the examined system that shows switching behaviour is performed using the derivation free particle swarm optimization (PSO) method. The physical models are developed for the purpose of being employed for the design of a trajectory tracking nonlinear model-based control scheme for clutch actuation based on the concept of input-output linearization.
引用
收藏
页码:83 / 95
页数:13
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