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Related Concept Videos

PD Controller: Design01:26

PD Controller: Design

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
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Feedback control systems01:26

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
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Controller Configurations01:22

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Control Systems: Applications01:25

Control Systems: Applications

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Control Systems01:10

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Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
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Magnetic Damping01:17

Magnetic Damping

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WheelCon: A Wheel Control-Based Gaming Platform for Studying Human Sensorimotor Control
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Active disturbance rejection control in steering by wire haptic systems.

A Rodriguez-Angeles1, J A Garcia-Antonio1

  • 1Center for Research and Advanced Studies (CINVESTAV-IPN), Electrical Engineering Department, Mechatronics Group, Av. IPN, No. 2508, P.C. 07630, Col. San Pedro Zacatenco, Mexico City, Mexico.

ISA Transactions
|August 28, 2013
PubMed
Summary

This study presents a steer-by-wire system using disturbance rejection control. It effectively estimates and cancels steering disturbances, enhancing driver feedback and control accuracy with minimal sensors.

Keywords:
DisturbanceHaptic feedbackHigh gain GPI observerMasterSlaveSteering

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Area of Science:

  • Automotive Engineering
  • Control Systems
  • Robotics

Background:

  • Steer-by-wire systems offer potential for advanced vehicle control and driver assistance.
  • Accurate estimation and cancellation of dynamic disturbances are crucial for effective haptic feedback and precise steering control.

Purpose of the Study:

  • To introduce a novel steer-by-wire haptic system based on disturbance rejection control.
  • To enable precise tracking between commanded steering wheel angle and tire orientation.
  • To provide intuitive haptic feedback to the driver by utilizing estimated steering rack disturbances.

Main Methods:

  • Implementation of high-gain Generalized Proportional Integral (GPI) observers for estimating tire and steering wheel dynamic disturbances.
  • On-line cancellation of estimated disturbances to ensure accurate angle tracking.
  • Feedback of estimated steering rack disturbances to the steering wheel for haptic interface.

Main Results:

  • Successful demonstration of disturbance rejection control for steer-by-wire systems.
  • Experimental validation on a prototype platform using a VW Beetle steering rack and a steering wheel.
  • The system operates as a bilateral master-slave system with minimal sensor requirements and dynamic model knowledge.

Conclusions:

  • The proposed steer-by-wire haptic system effectively rejects disturbances, enhancing control and driver feedback.
  • The use of GPI observers and disturbance cancellation is a viable approach for robust steer-by-wire systems.
  • The system's simplicity in terms of sensor and model requirements makes it practical for implementation.