Marcus Hedegärd

Forskare at Electrical Engineering, Reglerteknik, automation och mekatronik, Automatic Control

Marcus Hedegärd is a PhD student in the Automatic control research group, where he investigates the benefits of, and develops potential usages for, a magnetoelastic torque sensor, when placed between the clutch and the gearbox in Volvo’s heavy duty vehicles. The improved knowledge of the actual torque can be used for reducing the load during gearshifts. Due to the hysteretic characteristic of the sensor, his introductory research involves hysteresis modeling and compensation which can improve the accuracy of the sensor. As a next step, Marcus will explore how to use the sensor as an additional measurement for motor diagnosis.

Source: chalmers.se

Projects

2016–2017

Skattning av cylinderseparerat cylindertryck för effektivare och renare förbränning.

Torsten Wik Automatic Control
Marcus Hedegärd Automatic Control
Swedish Energy Agency
Volvo Group

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Publications

2017

Convex identification of minimial function bases for cylinder pressure by using pressure values as basis weights

Marcus Hedegärd, Torsten Wik
IEEE Transactions on Control Systems Technology
Journal article
2014

Convex identification of models for asymmetric hysteresis

Marcus Hedegärd, Torsten Wik
American Control Conference, p. 4753-4758
Paper in proceedings
2014

Non-parametric convex identification of extended generalized Prandtl–Ishlinskii models

Torsten Wik, Marcus Hedegärd
Automatica. Vol. 50 (2), p. 465-474
Journal article
2014

Convex identification of models for asymmetric hysteresis

Marcus Hedegärd, Torsten Wik
American Control Conference, p. 4753-4758
Paper in proceedings
2011

An online method for estimation of degradable substrate and biomass in an aerated activated sludge process

Marcus Hedegärd, Torsten Wik
Water Research. Vol. 45 (19), p. 6308-6320
Journal article
2010

Observer design for the activated sludge process

Torsten Wik, Marcus Hedegärd
Conference contribution