scholarly journals Modeling of Full Vehicle to Evaluate the Impact of Electric Powertrain on Steering Performance

2020 ◽  
Vol 13 (3) ◽  
Author(s):  
Poornima R. Bodke ◽  
Subim .N. Khan ◽  
Shoaib Iqbal ◽  
Aravind S.
Keyword(s):  
High Speed ◽  
Steering System ◽  
Electric Power Steering ◽  
Design Modification ◽  
Power Steering System ◽  
Full Vehicle ◽  
Power Steering ◽  
Electric Power Steering System ◽  
Parameter Values ◽  
The Impact

The study of dynamic behavior of Electric Power Steering System (EPAS) is very critical to understand the overall handling of the vehicle. The appropriate feedback from the steering to the driver is crucial so that the driver get the precise steering feel in order to control the vehicle with ease during all kinds of maneuvers. For a maximum tire life, the steering system should maintain, a proper tire road contact, and proper tire geometry with respect to the chassis both during cornering and straight-ahead driving. The driver should be able to turn the vehicle with ease during low as well as high speed maneuver. A complete steering system dynamic model is developed and is integrated with the full vehicle model using AMESIM 1D simulation platform. The simulation is carried out as per the guidelines laid by the ISO 7401 standard criterion. In this project we have performed the simulation on three different vehicle models in which a behavioral comparison of EPAS between their Conventional & Electric variants is performed. A thorough implementation of various vehicle SPMM parameters and KnC files is done in AMESim simulation model. Finally a list of Performance Aggregate Target Parameters is calculated. The resulting PAT parameter values are then compared with the test data and an appropriate design modification has been suggested accordingly.

Research on an Electric Power Steering System with Active Steering Ability

2013 ◽  
Vol 312 ◽  
pp. 679-684
Author(s):  
Jun Wei Qiao ◽  
Jin Fa Xie ◽  
Zhen Wei Yang
Keyword(s):  
Electric Power ◽  
High Speed ◽  
Steering System ◽  
Steering Wheel ◽  
Electric Power Steering ◽  
Power Steering System ◽  
Low Speed ◽  
Power Steering ◽  
Active Steering ◽  
Electric Power Steering System

To introduce a new type of electric power steering system, the structure and working principle of the system were introduced, and the models of the car, the tire and the steering system were established. The assist characteristic of the power steering and the ideal steering ratio were also designed and optimized. At last, the simulation tests were carried out. The double planetary wheel mechanism is the most important component of the system. With this mechanism, the system synthesizes the force or motion from the steering wheel and the motor. So the power steering and a small steering ratio can be provided at a low speed, and the steering ratio can be changed initiatively at a medium or high speed. Whats more, the steering ability still exists when there is a fault in the system. The simulation results show this steering system can effectively improve the steering portability, low-speed sensitivity, and the vehicle handling stability.

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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