Development of a Coordinated Strategy of Steering Torque Overlay and Differential Braking for Unintended Lane Departure Avoidance

Paper #:
  • 2012-01-0281

Published:
  • 2012-04-16
DOI:
  • 10.4271/2012-01-0281
Citation:
Lee, J. and Yi, K., "Development of a Coordinated Strategy of Steering Torque Overlay and Differential Braking for Unintended Lane Departure Avoidance," SAE Technical Paper 2012-01-0281, 2012, https://doi.org/10.4271/2012-01-0281.
Author(s):
Affiliated:
Pages:
14
Abstract:
This paper describes a lane departure avoidance system to help the driver avoid the lane departure during drowsiness or inattention. The lane departure avoidance system proposed in this paper consists of unintended lane departure decision part, upper level controller part and lower level controller part. The index used in unintended lane departure decision part is proposed to monitor a driver's intention with steering behaviors. The desired dynamics is calculated in upper level controller part. When the desired dynamics is calculated, it is considered to guarantee a driver's safety and smooth ride feel simultaneously as possible. The lower level controller distributes the desired control input to actuators, motor driven power steering (MDPS) module and vehicle stability control (VSC) module. The proposed lane departure avoidance system has been evaluated via human driver model-in the loop simulation.
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