Research Article Open Access

DsPIC Based Power Assisted Steering Using Brushless Direct Current Motor

G. R.P. Lakshmi1 and S. Paramasivam2
  • 1 Sathyabama University, Chennai, Tamilnadu, India
  • 2 ESAB, Chennai, Tamilnadu, India


This study illustrates the Electrically Assisted power Steering (EAS) using BLDC motor for a vehicle. Earlier the Electrically Assisted power Steering (EAS) was implemented with DSP. This study shows the usage of a dsPIC to control the BLDC motor with an encoder. The BLDC motor here is driven by dsPIC through a three phase inverter system. IRAMS type of inverter is used which is cost efficient and space efficient. The dsPIC supplied with the input of the steering. In its higher capacity the vehicles speed controller acts as the assistance level controller for steering effort. At the lower capacity, the torque controller gives the effort level control. In reality this can be realized as torque sensor and vehicle sensor interfaced in the dsPIC. For actual implementation in the system, a dsPIC-based BLDC motor controller with three-phase inverter module is used with Hall-effect sensor feedback. It is designed in such a way that the driver assistance can be varied at any time without any difficulty.

American Journal of Applied Sciences
Volume 10 No. 11, 2013, 1419-1426


Submitted On: 5 July 2013 Published On: 26 September 2013

How to Cite: Lakshmi, G. R. & Paramasivam, S. (2013). DsPIC Based Power Assisted Steering Using Brushless Direct Current Motor. American Journal of Applied Sciences, 10(11), 1419-1426.

  • 1 Citations



  • Power Assisted Steering
  • dsPIC Control of BLDC
  • Incremental Rotary Encoder