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Method and arrangement for an electrical steering system

  • US 9,555,824 B2
  • Filed: 12/20/2012
  • Issued: 01/31/2017
  • Est. Priority Date: 12/20/2012
  • Status: Active Grant
First Claim
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1. A method for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel, wherein the vehicle comprises a steering arrangement comprising an input shaft connected to a manually operated steering device, an output shaft connected to at least one pair of ground engaging members and a mechanical interconnection connecting the output shaft and the input shaft, comprisingdetecting a first steering angle for the output shaft, which first steering angle indicates the position of the ground engaging members;

  • detecting a second steering angle for the input shaft, which second steering angle indicates the position of the steering device;

    comparing the first and second steering angles and determining a current state of the steering arrangement; and

    controlling a first actuator connected to the output shaft and a second actuator connected to the input shaft in response to the detected first and second steering angles, in order to achieve a desired state of the steering arrangement;

    applying a torque to the steering device proportional to the angular difference between the output shaft and the input shaft using a resilient portion in the mechanical interconnection, in order to provide the driver with a desired steering feel.

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