WFRF:(Kulcsár Balázs Adam 1975)
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Robust H-infinity Position Control for Vehicle Steering
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- Chugh, Tushar, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bruzelius, Fredrik, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kulcsár, Balázs Adam, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- 2021
- 2021
- English.
- Journal article (other academic/artistic)
Abstract
Subject headings
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- This paper presents a robust position controller for an electric power assisted steering and a steer-by-wire force-feedback system. A typical position controller is required for the driving automation and the vehicle motion control functions. The same controller could also be used to realize the haptic functions for steering feedback. The driver’s physical impedance causes a parametric uncertainty during the steering wheel coupling. As a consequence, a classical (single variable) position controller becomes less robust and suffers a tracking performance loss. Therefore, a multi-variable robust position controller is proposed to mitigate the effect of uncertainty. An investigation is performed by including the sensed torque signal in a classical position controller. Finally, a robust solution is synthesized using the LMI-H-infinity optimization. With this, a desired loop gain shape is achieved: (a) a large loop gain at low frequencies for performance; and (b) a small loop gain at high frequencies for robustness. Frequency response comparison of different controllers on real hardware is presented. Experiments and simulation results clearly illustrate the improvements in reference tracking and robustness with an optimal torque feedback in the proposed H-infinity position controller.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- robustness
- steering
- stability
- H-infinity position control
- multi-variable feedback
- coupling inertia
Publication and Content Type
- art (subject category)
- vet (subject category)
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