Adaptive observer-based switched control for electropneumatic clutch actuator with position sensor

Langjord, Hege; Kaasa, Glenn-Ole; Johansen, Tor Arne

doi:10.3182/20110828-6-it-1002.00019

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…Using the tuning method presented above, the matrices G and Θ of the observer of Eqn. (22) and the parameters of the sliding mode strategy are the following 4 Note that the observer gains must ensure that the observation errors converge to zero fast enough for the state estimation to become reliable and to be used by the controller. The experimental results are shown in Fig.…”

Section: High-gain Observer Experimental Resultsmentioning

confidence: 99%

“…In [21], the authors consider the design of a switched observer for an electro-pneumatic clutch actuator with a position sensor. This observer is used in [22] to obtain a dual mode switched controller for the clutch actuator position.…”

Section: Introductionmentioning

confidence: 99%

“…This will not allow the elaboration of controllers and observers with simple proofs without requiring tools from hybrid system and sequential control theory. • In observer design: the observers designed in [20][21][22] use reduced-order models and have switching dynamics due to the binary inputs of the on/off solenoid valves. As it was mentioned earlier, there is no gen-eral theory to guarantee the stability of switched systems in the general case.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, some extra conditions are required to derive stability proofs. For instance, the authors of [21,22] require a persistence assumption on the velocity signal (persistently exciting condition) for their observation error stability proofs to hold.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Laib

Pham

Lin-Shi

et al. 2021

Journal of Dynamic Systems, Measurement, and Control

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This paper presents an averaged state model and the design of nonlinear observers for an on/off pneumatic actuator. The actuator is composed of two chambers and four on/off solenoid valves. The elaborated averaged state model has the advantage of using only one continuous input instead of four binary inputs. Based on this new model, a high gain observer and a sliding mode observer are designed using the piston position and the pressure measurements in one of the chambers. Finally, their closed-loop performances are verified and compared on an experimental benchmark.

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Section: High-gain Observer Experimental Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Laib

Pham

Lin-Shi

et al. 2021

Journal of Dynamic Systems, Measurement, and Control

View full text Add to dashboard Cite

show abstract

“…Flowchart for AMT Clutch prognostics algorithm. Langjord, Kaasa, and Johansen (2011). proposed an adaptive nonlinear observer for an electro-pneumatic clutch actuator which estimates piston velocity, chamber pressures and dynamic friction based on piston position measurement only.…”

Section: Prognostic Algorithmmentioning

confidence: 99%

Integrated Prognostics Observer for Condition Monitoring of an Automated Manual Transmission Dry Clutch System

Ramalingam

Prasad

Regalla

2020

IJPHM

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The closed loop feedback control system of an Automated Manual Transmission (AMT) electro-pneumatic clutch actuator is used for intelligent real time condition monitoring, enhanced diagnostics and prognostic health management of the dry clutch system, by integrating with the existing gearbox prognostics observer. The real-time sensor data of the clutch actuator piston position is analyzed for monitoring the condition of the clutch system. Original parameters of the new clutch are stored in the Electrically Erasable Programmable Read-only Memory (EEPROM) of the AMT controller and the real-time data is used by the observer for assessing the degradation/wear of the frictional clutch parts. Also, clutch slip during torque transmission is monitored, using the engine speed and the gearbox input shaft speed from Controller Area Network (CAN). Condition monitoring of clutch system provides enhanced prognostic functionality for AMT system which ensures consistent clutch performance, gear shift quality and timely warning for recalibration, repair and/or replacement of the critical wear and tear parts. Also, systematic analysis of the monitored data provides an accurate diagnosis of a developing fault. Thus, with the advanced control systems in place for AMT, a closed loop feedback based condition monitoring system is modelled for improved diagnostics and prognostics of AMT clutch system.

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An Energy-Based Nonlinear Pressure Observer for Fast and Precise Braking Force Control of the ECP Brake

Yang

Liu

et al. 2018

Int. J. Precis. Eng. Manuf.

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Adaptive observer-based switched control for electropneumatic clutch actuator with position sensor

Cited by 6 publications

References 13 publications

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Average Modeling and Nonlinear Observer Design for Pneumatic Actuators With On/Off Solenoid Valves

Integrated Prognostics Observer for Condition Monitoring of an Automated Manual Transmission Dry Clutch System

An Energy-Based Nonlinear Pressure Observer for Fast and Precise Braking Force Control of the ECP Brake

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