Marcus Hedegärd

Marcus Hedegärd 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.




Adaptive Hysteresis Compensation Using Reduced Memory Sequences

Marcus Hedegärd, Torsten Wik, C. Wallin
IEEE/ASME Transactions on Mechatronics. Vol. 22 (5), p. 2296-2307
Journal article

Convex Identification of Minimal Function Bases for Cylinder Pressure by using Pressure Values as Basis Weights

Marcus Hedegärd, Torsten Wik, Krister Fredriksson et al
IEEE Transactions on Control Systems Technology. Vol. PP (99)
Journal article

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

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

Convex identification of models for asymmetric hysteresis

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

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

Observer design for the activated sludge process

Marcus Hedegärd, Torsten Wik
15th Nordic Process Control Workshop, Lund
Conference contribution

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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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