Estimation of Lateral Force due to Lateral Disturbance for Application to an MDPS-Based Driving Assistant System 2011-01-0977
This paper describes a lateral disturbance estimator for an application to a Motor Driven Power Steering (MDPS)-based driving assistant system. A vehicle motion can be disturbed laterally by wind force or load from bank angle acting on the vehicle in the lateral direction. An MDPS-based driving assistant system can be used to reduce steering effort of a human driver in a driving situation with lateral disturbance. In designing the MDPS-based driving assistant system, the lateral wind disturbance should be estimated to determine an assistant torque. An estimator for the vehicle lateral disturbance estimation has been developed. The proposed estimator consists of two parts: a tire self-aligning torque estimator and the lateral disturbance estimator. The lateral disturbance estimator has been designed on the basis of a 2-DOF bicycle model with available sensor signals from the MDPS module. A numerical simulation has been conducted in order to evaluate the proposed estimator. The performance of the proposed estimator considering the vehicle parameter uncertainties has been evaluated for alternative levels of the lateral disturbances.
Citation: Kim, K., Lee, S., and Park, C., "Estimation of Lateral Force due to Lateral Disturbance for Application to an MDPS-Based Driving Assistant System," SAE Int. J. Mater. Manuf. 4(1):1014-1024, 2011, https://doi.org/10.4271/2011-01-0977. Download Citation
Author(s):
Kyuwon Kim, Seybok Lee, Chansik Park
Affiliated:
Seoul National Univ, Hyundai Mobis
Pages: 11
Event:
SAE 2011 World Congress & Exhibition
ISSN:
1946-3979
e-ISSN:
1946-3987
Also in:
SAE International Journal of Materials and Manufacturing-V120-5, SAE International Journal of Materials and Manufacturing-V120-5EJ, Load Simulation and Analysis in Automotive Engineering, 2011-SP-2307
Related Topics:
Power steering
Design processes
Simulation and modeling
Vehicle drivers
Parts
Tires
Sensors and actuators
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