Fourier Series Neural Network Analysis of a Steer-by-Wire System

2002 ◽  
Author(s):  
Val D. Mills ◽  
John R. Wagner ◽  
Imtiaz Haque
Keyword(s):  
Neural Network ◽  
Fourier Series ◽  
System Modeling ◽  
Nonlinear Behavior ◽  
Behavioral Model ◽  
Activation Function ◽  
Steering System ◽  
Attractive Alternative ◽  
Steer By Wire ◽  
Wire System

Automotive steering system research has traditionally focused on improving vehicle handling and safety, as well as investigating lateral dynamic issues. The emergence of hybrid vehicles provides a motivation for steer-by-wire technology in terms of power source availability and improved performance. From a design perspective, steering systems are difficult to accurately model due to the inherent nonlinearities present in the steering assembly, chassis, wheels, and tire/road interface. One modeling strategy that merits further attention is the Fourier Series Neural Network (FSNN) which has been proven effective for the characterization of dynamic systems. A neural network can approximate nonlinear functions to a high degree of accuracy, given an adequate network structure and sufficient training. In this paper, a Fourier Series activation function neural network will be studied to identify a steer-by-wire system. A behavioral model has been developed for the driver interface and directional control assembly of the rack and pinion steer-by-wire system. Representative numerical results are presented to demonstrate the FSNN’s ability to predict the system’s overall transfer function. This engineering tool may provide an attractive alternative to rigorous system modeling, and inherently captures the response characteristics due to the nonlinear behavior.

scholarly journals Analysis on the research method of road sense feedback in steer-by-wire system

2021 ◽  
Vol 2121 (1) ◽  
pp. 012031
Author(s):  
Chuanbin Wei ◽  
Lizhu Zhang ◽  
You Fu ◽  
Faying Xia
Keyword(s):  
Automobile Industry ◽  
Basic Structure ◽  
Steering System ◽  
Mechanical Transmission ◽  
Driving Experience ◽  
The Road ◽  
Establishment Method ◽  
Steer By Wire ◽  
Transmission Structure ◽  
Wire System

Abstract Nowadays, the automobile industry is gradually developing towards the trend of electrification and intelligence. Compared with the traditional steering system, the steer-by-wire system cancels the mechanical transmission structure, reduces the space utilization, reduces the probability of damage to the driver caused by the steering system in the collision accident, and improves the driving portability and enhances the driver’s handling experience. The road feeling feedback of steer-by-wire system has the greatest impact on the driver’s driving experience. This paper discusses the research methods of road feeling feedback of steer-by-wire system, introduces the basic structure of road feeling feedback of steer-by-wire system, the basic idea of dynamic modeling, the establishment of simulation model of road feeling feedback, and the establishment method of control strategy and simulation platform of road feeling feedback. Finally, it summarizes and prospects in order to provide basic information and perspectives for the development and research of steer-by-wire system.

scholarly journals Neural Network Based Approach for the Generation of Road Feel in a Steer-By-Wire System

2016 ◽  
Vol 20 (5) ◽  
pp. 49-66 ◽  
Author(s):  
Jayachandran Jayachandran ◽  
Denis Ashok
Keyword(s):  
Neural Network ◽  
Steer By Wire ◽  
Wire System

Learned steering feel by a neural network for a steer-by-wire system

2019 ◽  
pp. 449-464
Author(s):  
Patrick Krupka ◽  
Paul Lukowicz ◽  
Christopher Kreis ◽  
Bastian Boßdorf-Zimmer
Keyword(s):  
Neural Network ◽  
Steering Feel ◽  
Steer By Wire ◽  
Wire System

In-the-Loop Simulation Based on the Test Bed of Automotive Steer-by-Wire System

2014 ◽  
Vol 705 ◽  
pp. 142-145
Author(s):  
Wen Ming Yu
Keyword(s):  
Steering System ◽  
System Structure ◽  
Test Bed ◽  
Qualitative Simulation ◽  
Simulation Based ◽  
Steer By Wire ◽  
Working Principle ◽  
Simulation Results ◽  
Wire System

Automotive steer-by-wire system uses electronic signaling to transfer the command and causes the motor-driven steering. It can improve the maneuverability and stability of the driver steering. This article first discussed the car-by-wire steering system structure and working principle. Then, it builds the in-the-loop simulation based on the test bed of automotive steer-by-wire system. Moreover, this paper researches the test bad design of the automotive steer-by-wire system. The operation module controller is designed based on the of the automotive steer-by-wire system. At last, we can find out the qualitative simulation results.

Research on Angle Measurement of Loader's Steering-by-Wire System

2013 ◽  
Vol 373-375 ◽  
pp. 138-141
Author(s):  
Hai Xia Zhao ◽  
Zhi En Lv
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Working Conditions ◽  
Hydraulic System ◽  
Steering System ◽  
Angle Measurement ◽  
Corner Detection ◽  
Steering Wheel ◽  
Steer By Wire ◽  
Wire System

The loader's steer-by-wire system combines the automatic control system and hydraulic system. The system cancels the mechanical or hydraulic connection between the steering wheel and the front wheels, which existed in the original steering system, optimizing the adaptation of the loaders steering systems road feeling to its working conditions, convenient for the integration with other systems, and harmonization of control. This paper puts forward a new measurement of a steer-by-wire system steering angel. It aims at more accurate corner detection, will design to optimize loader's steer-by-wire hydraulic system signal detection, and better meet the actual needs.

Zero Turn Radius Vehicle Incorporating Computer-Controlled “Intelligent Castors”

1994 ◽  
Author(s):  
I. J. Spark ◽  
B. C. Besselink
Keyword(s):  
Vertical Axis ◽  
Steering System ◽  
Speed Difference ◽  
Steer By Wire ◽  
Turn Radius ◽  
Computer Controlled ◽  
Steep Slopes ◽  
Wire System

Abstract This paper describes how a computer controlled steering system can be used to increase the ability of zero turn radius vehicles to traverse steep slopes. This objective is achieved by replacing free wheeling front castors with “castors” which are positively rotated about a vertical axis to steering angles which are appropriate to the speed difference between the independently driven rear wheels and held at these angles. This relatively simple “Steer by wire” system foreshadows the development of much more sophisticated steering systems than can be achieved by traditional mechanical linkages.

A Nonlinear Control Method of Steering Angle Following Used in Steer-by-Wire System

2012 ◽  
Vol 190-191 ◽  
pp. 890-893 ◽  
Author(s):  
Yi Ran Li ◽  
Jian Ming Huang ◽  
Zhi Ming He
Keyword(s):  
Disturbance Rejection ◽  
Control Method ◽  
Steering System ◽  
Second Order ◽  
Active Disturbance Rejection Control ◽  
Steering Angle ◽  
Active Disturbance Rejection ◽  
Disturbance Rejection Control ◽  
Steer By Wire ◽  
Wire System

In this paper, active disturbance rejection control method is used to implement the steering angle following control of steer-by-wire system for the simplification of controller designing. The dynamic model of steering performing system is established, and then a second order active disturbance rejection controller is designed to control the steering angle. On the electric vehicle with steer-by-wire system, the angle following test of steering performing system is carried out under the control of the second order active disturbance rejection controller. The results show that the designed active disturbance rejection controller can restrain the effect of system resistant force on the accuracy of angle following and meet the requirement of steer-by-wire system to the steering angle following function. At the same time, there isn’t necessary to get the accurate data of steering system and the design process of controller becomes simple with adopting active disturbance rejection control method.

The Variable Steering Ratio for Vehicle Steer by Wire System Using Hyperbolic Tangent Method

2014 ◽  
Vol 575 ◽  
pp. 781-784 ◽  
Author(s):  
Sheikh Muhammad Hafiz Fahami ◽  
Hairi Zamzuri ◽  
Saiful Amri Mazlan ◽  
Sarah Atifah Saruchi
Keyword(s):  
High Speed ◽  
Control Algorithm ◽  
Steering System ◽  
Steering Wheel ◽  
Hyperbolic Tangent ◽  
Steer By Wire ◽  
Tangent Method ◽  
Vehicle Maneuver ◽  
Wire System

In conventional steering system, during the parking maneuver, driver required large turned on the steering wheel to move the fornt tyre. Thus, it will increase the driver burden when turned the steering wheel. The feature of variable steering ratio (VSR), help to reduce driver burden. Moreover, it improves the vehicle maneuver at lower and high speed. This paper, proposed a control algorithm of variable steering ratio (VSR) in vehicle SBW system. The concept of hyperbolic tangent is used where it not only improved the maneuverability at lower speed, but also reduces the driver burden on the steering wheel. To investigate the effectiveness of the proposed VSR algorithm, the result is compared with conventional steering system

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