The Design of Comprehensive Performance Test-Bed of Automobile Electric Power Steering System

2013 ◽  
Vol 333-335 ◽  
pp. 2301-2304
Author(s):  
Ze Gang He ◽  
Xiao Hong Tai ◽  
Rong Wei Shen ◽  
Jiong Gang Han
Keyword(s):  
Performance Test ◽  
Steering System ◽  
Servo Motor ◽  
Test Bed ◽  
Electric Power Steering ◽  
Power Steering System ◽  
Power Steering ◽  
Comprehensive Performance ◽  
Electric Power Steering System ◽  
Input Torque

A kind of comprehensive performance test-bed of automobile electric power steering system was designed. IPC was applied to the main control system. Testing software was developed based on Visual Basic. AC servo system was assembled to respectively simulate input torque and load torque, the manual input torque can also be realized by operating steering wheel. The motion control card MPC08 is used to control the motion of Servo motor. Test data is collected by using multi-function data collection card. The lifting gears were assembled to install input/output shaft servo motor and EPS. Test results show that the test-bed can verify the control strategies and accurately detect the assist characteristic of EPS.

Fast fault-tolerant control of electric power steering systems in the presence of actuator fault

2018 ◽  
Vol 233 (12) ◽  
pp. 3088-3097 ◽  
Author(s):  
Manel Allous ◽  
Kais Mrabet ◽  
Nadia Zanzouri
Keyword(s):  
Electric Power ◽  
Electric Motor ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Steering System ◽  
Adaptive Observer ◽  
Electric Power Steering ◽  
Power Steering System ◽  
Power Steering ◽  
Electric Power Steering System

Electric power steering is an advanced steering system that uses an electric motor to improve steering comfort of the car. As a result, the failures in the electric motor can lead to additional fault modes and cause damage of the electric power steering system performance. Hence, to ensure the stability of this latter, the present paper proposes a new method to reconfigure the fault control. A novelty approach of fast fault estimation based on adaptive observer is also proposed. Moreover, to guarantee optimal and fast control, a fault-tolerant control based on inverse bond graph modeling is designed to construct the behavior of the nominal system. The simulation and the experimental results on a real electric power steering system reveal the importance of the control strategy and show that the proposed approach works as intended.

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