On the Design of Electric Power Steering Control Unit
Indrawantoa,b, Ayatullah T.a,c, Prayoga R.A.a,c
a Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Bandung, Indonesia
b National Center for Sustainable Transportation Technology (NCSTT), Bandung, Indonesia
c Mechanical Production Engineering, Research Group, Bandung, Indonesia
Abstract
© 2018 IEEE.in modern cars, hydraulic power steering (HPS) is continuously substituted by the electric power steering (EPS). Electric Power Steering (EPS) has important significance in improving the auto’s dynamic and static performances. This paper deals with the design of the microcontroller based EPS Control Unit. First, the principle and structure of EPS are discussed. Then the characteristics of EPS system are analyzed, including the typical power curves which deal the relationship of the assist torque and the steering wheel torque. Finally, the designed and the experiment results of the EPS Control Unit are discussed. The experiment results show that the actual current of the motor follows the target current validates the designed assist characteristic.
Author keywords
Assist characteristic,Control unit,Electric power steering,Hydraulic power steering,Microcontroller-based,PD control,Static performance,Torque fluctuation
Indexed keywords
assist torque,electric power steering (EPS),EPS Control Unit,proportion-plus-derivative control(PD-control),torque fluctuation
Funding details
ACKNOWLEDGMENT This paper was supported by USAID through Sustainable Higher Education Research Alliances (SHERA) Program – Centre for Collaborative (CCR) National Center for Sustainable Transportation Technology (NCSTT).