×

Power steering device

  • US 9,090,280 B2
  • Filed: 12/26/2008
  • Issued: 07/28/2015
  • Est. Priority Date: 12/26/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. A power steering device mounted on a vehicle, comprising:

  • a variable transmission ratio mechanism which changes a transmission ratio between a real steering angle and a steered angle;

    a friction torque setting unit which sets a friction torque applied to a steering wheel based on an operating condition of the vehicle;

    a target steering angle setting unit which sets a target steering angle based on the friction torque;

    a torque applying unit which sets an applied friction torque based on a deviation between the target steering angle and a steering angle and which performs a control of applying the applied friction torque to the steering wheel; and

    an applied friction torque changing unit which changes the applied friction torque based on the transmission ratio.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×