Eddy current based, contactless position transducer for a gas handle

Author

Van den Bossche, Alex ; Sergeant, Peter

Author_Institution

Dept. of Electr. Energy, Syst. & Autom., Ghent Univ., Ghent, Belgium

fYear

2010

fDate

1-3 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

In electric vehicles, it is normal to have an electronic set value for `gas´ and for `brake´. Traditional potentiometers with sliding contacts are not reliable. Magnetoresistive sensors or hall effect sensors need a magnet on the moving part. The proposed sensor just needs iron on the moving part. It uses an oscillator circuit where the absorbed current is an indication of damping, so how close the iron is to the sensor. The component cost is low and the output has a soft gradual change with the displacement.

Keywords

Hall effect transducers; automotive electronics; eddy currents; electric sensing devices; electric vehicles; magnetoresistive devices; oscillators; contactless position transducer; eddy current iron loss sensor; electric vehicles; electronic set value; gas handle; hall effect sensors; magnetoresistive sensors; oscillator circuit; sliding contacts; Coils; Copper; Iron; Oscillators; Sensors; Steel; Transistors; Transducer; drive by wire; electric vehicle; oscillator; sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE

Conference_Location

Lille

Print_ISBN

978-1-4244-8220-7

Type

conf

DOI

10.1109/VPPC.2010.5729046

Filename

5729046