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Intermediate Shaft Assembly for Steer-by-Wire Steering System

  • US 20180072341A1
  • Filed: 09/12/2016
  • Published: 03/15/2018
  • Est. Priority Date: 09/12/2016
  • Status: Active Grant
First Claim
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1. A steer-by-wire steering system comprising:

  • a steering wheel;

    a steering shaft operatively coupled to the steering wheel and rotatable therewith;

    a steering gear input shaft operatively coupled to an electric power assist steering gear;

    an electric actuator operatively coupled to the electric power assist steering gear;

    a controller in operative communication with the steering shaft and the electric actuator for steering in a primary mode; and

    an intermediate shaft assembly mechanically coupling the steering shaft to a rack and pinion assembly to steer in a redundant mode when electrical communication between the steering shaft and the steering gear input shaft is not available.

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