A Control System Methodology for Steer by Wire Systems

Amberkar, Sanket; Bolourchi, Farhad; Demerly, Jon D.; Millsap, Scott

doi:10.4271/2004-01-1106

Cited by 65 publications

(39 citation statements)

References 4 publications

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“…In previous research, a free control algorithm for EPS application is done by Bolourchi and Etienne [12]. Sanket Amberkar, et al mentioned that for the free control of a steering systems as well as SBW systems, a quick return of HW to center with minimal overshoot is desired [6]. However, their research did not mention how a good free control is implemented.…”

Section: Free Controlmentioning

confidence: 99%

“…Researchers from the field of robotics have proposed torquesensor based solution in which a steer-by-wire system is treated as a teleoperation system with position-force control architecture [6], [9], Sanket Amberkar and et. al.…”

Section: Torque Sensor-based Methodsmentioning

confidence: 99%

“…Free control refers to the response of the HW after a sudden release from the certain position of the HW. In this case, a quick return to center with minimal overshoot is desired [6].…”

Section: Steer-by-wire Systemmentioning

confidence: 99%

“…Basically, in automotive power steering, the assistant torque is used to reduce the force feedback at the lower speed (the speed of the vehicle) or tighter at the higher speed [6]. Therefore, assistant toque assist τ is introduced in equation (6).…”

Section: B Reproducing Driving Feelingmentioning

confidence: 99%

“…Traditionally, free control response has been solved by adding damping (in the case of EPS) or friction to the system [6] (in the case of hydraulic steering). In previous research, a free control algorithm for EPS application is done by Bolourchi and Etienne [12].…”

Section: Free Controlmentioning

confidence: 99%

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Direct current measurement based steer-by-wire systems for realistic driving feeling

Nguyen

Ryu

2009

2009 IEEE International Symposium on Industrial Electronics

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-In this paper, a method to reproduce realistic driving feeling and improve the returnability of steer-by-wire systems (SBW) is proposed by measuring the roadwheel motor's current directly. The key contribution presented here is a novel method to recreate the driving feeling in term of force feedback with simple and cheap current sensors. A current sensor is used to fully measure the steering torque on the rack of steering mechanism. This measured steering torque therefore, includes the overall effects of road conditions, aligning moments, tire properties and so on. Beside that, a free control scheme is proposed to improve returnability as well as the handwheel stability in a free motion. Moreover, during this research, the significant frequency effect of handwheel motions was found. This effect could be useful and valuable for improving steer-by-wire development based on torque-map based method. This method is investigated with simulation results using the control design and simulation module in LabVIEW programming language. The simulated results show that this method offers a cheaper and simpler solution for the development of steer-by-wire systems. In addition, stability and returnability of handwheel in steer-by-wire systems could be improved.

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Section: Free Controlmentioning

confidence: 99%

Section: Torque Sensor-based Methodsmentioning

confidence: 99%

“…Free control refers to the response of the HW after a sudden release from the certain position of the HW. In this case, a quick return to center with minimal overshoot is desired [6].…”

Section: Steer-by-wire Systemmentioning

confidence: 99%

Section: B Reproducing Driving Feelingmentioning

confidence: 99%

Section: Free Controlmentioning

confidence: 99%

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Direct current measurement based steer-by-wire systems for realistic driving feeling

Nguyen

Ryu

2009

2009 IEEE International Symposium on Industrial Electronics

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Robust adaptive control of steer‐by‐wire systems under unknown state‐dependent uncertainties

Shukla

Roy

Gupta

2021

Adaptive Control & Signal

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Steer-by-wire (SBW) systems are considered as one of the most significant innovations among the technologies developed for advanced driver-assistance systems and autonomous vehicles. The main control challenge in a SBW system is to follow the steering commands in the face of parametric uncertainties and external disturbances; crucially, perturbations in inertial parameters and damping forces give rise to state-dependent uncertainties, which cannot be bounded a priori by a constant. However, the state-of-the-art control methods of SBW system rely on a priori bounded uncertainties, and thus, become inapplicable when state-dependent dynamics become unknown. This work, to the best of the authors' knowledge for the first time, proposes an adaptive control framework that can tackle the state-dependent uncertainties and external disturbances in a typical SBW system without any a priori knowledge of their structures and of their bounds. The stability of the closed-loop system is studied analytically via uniformly ultimately bounded notion and the effectiveness of the proposed solution is verified via simulations against the state-of-the-art solution.

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Advanced Vehicle Lateral Motion Control

Advanced Motion Control and Sensing for Intelligent Vehicles

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A Control System Methodology for Steer by Wire Systems

Cited by 65 publications

References 4 publications

Direct current measurement based steer-by-wire systems for realistic driving feeling

Direct current measurement based steer-by-wire systems for realistic driving feeling

Robust adaptive control of steer‐by‐wire systems under unknown state‐dependent uncertainties

Advanced Vehicle Lateral Motion Control

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