Development of Robust Motor Servo Control for Rear Steering Actuator Based on Two-Degree-of-Freedom Control System

Paper #:
  • 1999-01-0402

Published:
  • 1999-03-01
Citation:
Kuzuya, H., Nakashima, H., Satoh, K., and Shin, S., "Development of Robust Motor Servo Control for Rear Steering Actuator Based on Two-Degree-of-Freedom Control System," SAE Technical Paper 1999-01-0402, 1999, https://doi.org/10.4271/1999-01-0402.
Pages:
7
Abstract:
Rear steering system can improve vehicle stability using active control of the rear wheel angles. For designing the rear steering system, environmental conditions, performance deterioration due to aging and component variation as a result of manufacturing tolerance under mass production must be taken into consideration. We have applied two-degree-of-freedom (2DOF) feedback control with feedforward control for the motor servo control so that the rear steering actuator can track the target rear steering angle accurately and stably. The control system is designed based upon a nominal mathematical model and its variation range. As a result, the rear steering actuator can be controlled with excellent performance and high reliability. This paper describes the mathematical model construction in the frequency domain and a robust motor servo controller design based on 2DOF feedback control with feedforward control.
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