Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2005-05-19
2011-12-27
Winner, Tony H. (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S446000
Reexamination Certificate
active
08083021
ABSTRACT:
Method for operating a steering system for a motor vehicle with at least one steerable wheel, a servo drive and a superimposed gear mechanism, the steering movement, initiated by the driver of the vehicle, and the movement for producing the steering movement of the steerable wheel, initiated by the servo drive for realizing useful functions (VSR, LAFN) being superimposed by the superimposed gear mechanism into a pinion angle, the servo drive for initiating the movement being triggered by a control signal (δMd) of a control device. The servo drive is turned back in a controlled manner when a substitute mode of at least one useful function (VSR, LAFN) of the steering system is switched off or on.
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Grossheim Reinhard
Klier Willy
Reinelt Wolfgang
Schuster Wolfgang
Jordan and Hamburg LLP
Scharich Marc
Winner Tony H.
ZF Lenksysteme GmbH
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