Fault tolerant control method of dual steering actuator motors for steer-by-wire system

2015 ◽  
Vol 16 (6) ◽  
pp. 977-987 ◽  
Author(s):  
L. He ◽  
G. Y. Chen ◽  
H. Y. Zheng
Keyword(s):  
Control Method ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Steer By Wire ◽  
Wire System

Fault tolerant control method for steer-by-wire system

2009 ◽  
Author(s):  
Chengwei Tian ◽  
Changfu Zong ◽  
Lei He ◽  
Xiang Wang ◽  
Yiliang Dong
Keyword(s):  
Control Method ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Steer By Wire ◽  
Wire System

scholarly journals Fault-Tolerant Control of the Road Wheel Subsystem in a Steer-By-Wire System

2008 ◽  
Vol 2008 ◽  
pp. 1-8 ◽  
Author(s):  
Bing Zheng ◽  
Sohel Anwar
Keyword(s):  
Control System ◽  
System Performance ◽  
Control Algorithm ◽  
Fault Tolerant ◽  
Single Point ◽  
Fault Tolerant Control ◽  
The Road ◽  
Steer By Wire ◽  
Wire System ◽  
Mechanical Arrangement

This paper describes a fault-tolerant steer-by-wire road wheel control system. With dual motor and dual microcontroller architecture, this system has the capability to tolerate single-point failures without degrading the control system performance. The arbitration bus, mechanical arrangement of motors, and the developed control algorithm allow the system to reconfigure itself automatically in the event of a single-point fault, and assure a smooth reconfiguration process. Both simulation and experimental results illustrate the effectiveness of the proposed fault-tolerant control system.

Two-way H∞ control method with a fault-tolerant module for steer-by-wire system

2016 ◽  
Vol 232 (1) ◽  
pp. 42-56 ◽  
Author(s):  
Han Zhang ◽  
Wanzhong Zhao
Keyword(s):  
Control Method ◽  
Fault Tolerant ◽  
Tracking Error ◽  
Reference Value ◽  
Front Wheel ◽  
Feedback Signal ◽  
Angle Sensor ◽  
System A ◽  
Steer By Wire ◽  
Wire System

To improve the maneuverability, stability, and reliability of the steer-by-wire system, a two-way H∞ control method with a fault-tolerant module is proposed in this paper. First, a two-way H∞ control scheme is proposed. Two controllers are designed in this scheme: one is used as a feedback controller as a general practice to stabilize the system and detect the tracking error; the other is used as a feed forward controller to make the output of the system follow the driver’s steering intention rapidly and precisely. Second, a fault-tolerant module aiming at front wheel angle sensor which is an important feedback signal to the system is added to improve the reliability of the system. A revised Kalman filter is applied in the fault-tolerant module to reconfigure the front wheel angle as a reference value and a substitute when the sensor fails, thus replacing hardware redundancy by software redundancy in a cost-effective way. Lastly, simulations by Matlab/Simulink and CarSim software and hardware-in-the-loop experiments are conducted and effectiveness of the proposed control method is demonstrated by simulation and experimental results and numerical analyses.

scholarly journals Reinforcement learning–based fault-tolerant control with application to flux cored wire system

2018 ◽  
Vol 51 (7-8) ◽  
pp. 349-359 ◽  
Author(s):  
Dapeng Zhang ◽  
Zhiwei Gao
Keyword(s):  
Reinforcement Learning ◽  
Control Method ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Sensor Faults ◽  
Test Bed ◽  
Operation Performance ◽  
Unexpected Events ◽  
Cored Wire ◽  
Wire System

Background: Processes and systems are always subjected to faults or malfunctions due to age or unexpected events, which would degrade the operation performance and even lead to operation failure. Therefore, it is motivated to develop fault-tolerant control strategy so that the system can operate with tolerated performance degradation. Methods: In this paper, a reinforcement learning -based fault-tolerant control method is proposed without need of the system model and the information of faults. Results and Conclusions: Under the real-time tolerant control, the dynamic system can achieve performance tolerance against unexpected actuator or sensor faults. The effectiveness of the algorithm is demonstrated and validated by the rolling system in a test bed of the flux cored wire.

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