Comparison of Steering Feel Control Strategies in Electric Power Assisted Steering
Paper i proceeding, 2018

This paper presents an objective comparison of two closed-loop steering feel control concepts in an electric power assisted steering (EPAS) system. The closed-loop methods, torque- and position-control, aim to compensate the EPAS motor inertia in an effective manner as compared to the open loop (feed-forward) solution. For a given steering feel reference, the feedback controllers are developed in a sequential manner ensuring coupled stability. Linear system theory is used for the analysis. For a comparable reference tracking and stability margin, higher haptic controller bandwidth is achieved in torque-control. The position controller stability and performance are limited due to feedback control filtering and high system inertia (from EPAS motor and driver arms), which further makes it more sensitive towards muscle co-contraction. Moreover, torque-control offers better road disturbance attenuation for low and high frequency spectrum, hereas position-control is better for mid-frequency range.

Advanced Driver Assistant Systems

Vehicle Dynamics and Chassis Control

Haptic Feedback Control

Författare

Tushar Chugh

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Fredrik Bruzelius

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Matthijs Klomp

Chalmers, Mekanik och maritima vetenskaper, Fordonsteknik och autonoma system

Shenhai Ran

Volvo Cars

14th International Symposium on Advanced Vehicle Control, AVEC 2018
Beijing, China,

Development of Virtual Steering Control and Steering Feel Model Reference

Volvo Cars, 2016-07-01 -- 2022-06-30.

EU H2020 - Marie Skłodowska-Curie Innovative Training Networks (ITN-ETN), 2016-07-01 -- 2022-06-30.

Styrkeområden

Transport

Infrastruktur

Chalmers simulatorcentrum

Ämneskategorier

Farkostteknik

Reglerteknik

Mer information

Senast uppdaterat

2018-08-23