Measurement of Open and Closed Loop Frequency Response of Belt Drive Electric Steering System in Rolling Vehicles

Document Number: 2009-01-0050

Date Published: April 2009

Author(s):
Kevin McLaughlin - TRW Automotive US LLC
Roger Lahoud - TRW Automotive US LLC
Miguel Bahena - Ford Motor Co.

Abstract:
The transfer function required to control an electrically assisted steering gear is identified using a modified FIR filtering approach. The topology of the electrically assisted steering gear is described. The modified FIR filtering approach is explained with emphasis on the frequency domain implication of window choice when performing measurements. An example is provided using an analytic model of the steering gear so that the accuracy of the technique can be evaluated on a known system. The technique is applied to measure the transfer function of an actual electrically powered steering gear on a test bench and in a rolling vehicle.

File Size: 687K
Product Status: In Stock

Included in: V118-7

See other papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: Steering and Suspension Technology Symposium: (Part 1 of 2) Steering

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