Publications associées à Quattro (four-wheel-drive system)

Estimation of transverse spin penetration length using second-harmonic measurement: Proposal of an experimental method

A theoretical description of spin current injection from a nonmagnetic layer into a magnetic one is presented, with the main emphasis on the description and determination of the penetration depth of spin current component transverse to the magnetization. T ...

Amer Physical Soc2016

A Hall sensor microsystem with continuous gain calibration using fully integrated references

Maher Kayal, Marc Pastre, Andrea Ajbl

This paper presents an integrated Hall sensor microsystem with continuous gain calibration and a current-mode back-end. The integrated system includes a Hall sensor with internal biasing, a fully differential front-end, a preamplifier chain, a voltage-to-c ...

IEEE2012

A fully integrated Hall sensor microsystem with current-mode output

Maher Kayal, Marc Pastre, Andrea Ajbl

This paper presents a fully integrated Hall sensor microsystem with a current-mode output. The system operates in open-loop and includes a Hall sensor with internal biasing, a fully differential front-end, a preamplifier chain and a voltage-to-current conv ...

2011

Magnebike: A Magnetic Wheeled Robot with High Mobility for Inspecting Complex-Shaped Structures

Roland Siegwart, Francesco Mondada, Gilles Caprari, Fabien Tâche, Roland Moser

This paper describes the Magnebike robot, a compact robot with two magnetic wheels in a motorbike arrangement, which is intended for inspecting the inner casing of ferromagnetic pipes with complex-shaped structures. The locomotion concept is based on an ad ...

2009

Wheel Torque Control in Rough Terrain - Modeling and Simulation

Roland Siegwart, Pierre Lamon

This paper presents a method for wheel-ground contact angle measurement and a traction control strategy minimizing slip in rough terrain. The slip minimization algorithm has been tested and compared with a standard speed control in simulation, which allows ...

2005

Analysis of Slip Energy Recovery Drives Behavior Using the Compex Torque Coefficient Method

Jean-Jacques Simond, Basile Kawkabani, Alain Sapin

The aim of the present paper is to extend the well-known complex torque coefficient method usually used for synchronous machine rotor oscillations, to a slip energy recovery induction motor drive. To illustrate the effectiveness of the proposed extension, ...

2002