Patent ID: 8215188
Filing Date: 2012-07-10
Classification: B62D,G01L

Abstract:
1. A torsion angle sensor comprising: a torsion bar, two shafts connected with one another via the torsion bar, first and second planetary gear sets, each of the first and second planetary gear sets including a sun gear and planet gears, wherein each sun gear is attached to a corresponding one of the two shafts, a shared planet carrier on which the planet gears of the first and second planetary gear sets are mounted, a stationary internal gear enmeshed with the planet gears of the first planetary gear set, a rotatable internal gear enmeshed with the planet gears of the second planetary gear set, a first sensor gear enmeshed with the rotatable internal gear, and a first rotational position sensor coupled with the first sensor gear, wherein the first rotational position sensor generates an output signal that corresponds to a torsion angle between the two shafts.