Measuring and testing – Dynamometers – Responsive to torque
Reexamination Certificate
2005-03-04
2008-11-25
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Dynamometers
Responsive to torque
Reexamination Certificate
active
07454986
ABSTRACT:
A device and a method for measuring torque for an electromechanical steering system comprises a steering means that is connected in a driving manner to a steering mechanism via a torsion rod which is provided with an input shaft part (101) and an output shaft part (102), an electric servomotor for driving the steering mechanism, the driving activity by the servomotor causing a relative rotational displacement between the input shaft part (101) and the output shaft part (102), a sensor unit (53) for detecting a steering angle (d), a sensor unit (52) for detecting a rotor angle of the servomotor (2), and a virtual torque sensor (54) in which a steering moment (τδ) is determined from the steering angle (d) and the rotor angle.
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Kwasny Olaf
Manz Holger
Wahnschaffe Klaus
Baker & Botts L.L.P.
Davis Octavia
Lefkowitz Edward
Volkswagen Aktiengesellschaft
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