Nonlinear observer and parameter estimation for electropneumatic clutch actuator

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

doi:10.3182/20100901-3-it-2016.00099

Cited by 19 publications

(20 citation statements)

References 6 publications

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“…A model and methods for identifying an electropneumatic clutch actuator was proposed in [11]. However, this model does not take into account nonlinearity and dynamic and static characteristics of an electropneumatic (electrohydraulic) converter.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of procedures for determining the parameters of an aircraft servo actuator

Kononykhin¹

2019

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of procedures for determining the parameters of an aircraft servo actuator

Kononykhin¹

2019

EEJET

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“…The velocity of the piston can be calculated by real differentiation. The internal pressure in the cylinder chamber, however, has usually to be determined by a state observer as discussed in [4] and [5]. For an experimental identification of the system the test rig has been equipped with additional sensors not present in the real truck: a sensor for the internal pressure, a force transducer, and a mass flow sensor for the supply air mass flow.…”

Section: Introductionmentioning

confidence: 99%

Model-based control of an electro-pneumatic clutch using a sliding-mode approach

Prabel

Schindele

Aschemann

et al. 2012

2012 7th IEEE Conference on Industrial Electronics and Applications (ICIEA)

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This paper presents a nonlinear model-based control design for an electro-pneumatic clutch for heavy trucks, which is required at start-up or during gear shifts to disconnect the combustion engine from the gear box. This automated actuator disburdens the driver and provides the necessary actuation force according to the large torque transmitted through the powertrain. The proposed cascaded control structure consists of a fast inner control loop for the internal pressure, which is estimated by a nonlinear reduced-order observer, as well as an outer control loop for the clutch position. The design of the feedback part for the clutch position is based on sliding-mode techniques. A Lyapunovbased approach is used for the inner control loop of the internal pressure, which is usually not measured in truck applications. Thereby, high tracking accuracy is achievable for the piston position as controlled variable. The efficiency of the proposed control structure is demonstrated by experimental results from a dedicated test rig.

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“…The velocity of the piston can be calculated by real differentiation. The internal pressure in the piston chamber, however, has usually to be determined by a state observer as discussed in [4], [5]. For an experimental identification of the system the test rig has been equipped with additional sensors not present in the real truck: a sensor for the internal pressure, a force transducer, and a mass flow sensor for the supply H. Aschemann In this paper, a control-oriented model of this mechatronic system is derived at first, and the system parameters as well as the valve characteristics are identified.…”

Section: Introductionmentioning

confidence: 99%

Observer-based backstepping control of an electro-pneumatic clutch

Aschemann

Prabel

Schindele

2012

2012 American Control Conference (ACC)

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This paper presents a nonlinear model-based control design for an electro-pneumatic clutch for heavy trucks, which is required at start-up or during gear shifts to disconnect the combustion engine from the gear box. This automated actuator disburdens the driver and provides the necessary actuation force according to the large torque transmitted through the powertrain. The proposed cascaded control structure consists of a fast inner control loop for the internal pressure as well as an outer control loop for the clutch position, which is extended by a reduced-order observer. The design of the feedback part is based on backstepping techniques. A reduced-order disturbance observer estimates the internal pressure, which is usually not measured in truck applications. Thereby, high tracking accuracy is achievable for the piston position as controlled variable. The efficiency of the proposed control structure is demonstrated by experimental results from a dedicated test rig.

show abstract

Nonlinear observer and parameter estimation for electropneumatic clutch actuator

Cited by 19 publications

References 6 publications

Development of procedures for determining the parameters of an aircraft servo actuator

Development of procedures for determining the parameters of an aircraft servo actuator

Model-based control of an electro-pneumatic clutch using a sliding-mode approach

Observer-based backstepping control of an electro-pneumatic clutch

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