Power and control stage design for an experimental electric vehicle

Authors

  • Brenda Nicole Arnez Mercado Universidad Privada del Valle
  • Edson Gaston Montaño Bautista Universidad Privada del Valle

DOI:

https://doi.org/10.52428/20758944.v17i50.19

Keywords:

Battery bank, Electronic control stage, Total traction force, Three-phase inverter, Brushless motor

Abstract

The control circuit and the power stage design was carried out for an experimental electric vehicle with two Brushless direct current motors in-wheel (Brushless motor - BLDC) of 40 kW each, which distributes the energy from the power bank selected lithium batteries LiFeMnPO4 of 230 Vdc and 100 Ah, defined by the voltage and current consumption of both 205 Vdc and 500 A motors, according to the torque need of a 1000 kg vehicle, calculated from the dynamic analysis and the calculation of the electrical consumption parameters according to the motor performance graphs.

The control stage receives the signals from defined inputs, such as the accelerator, the brake, the direction of travel, and the rotation of the steering wheel, and these are processed and sent information to the slave microcontrollers of each motor, according to the sequence of the three sensors hall position of each wheel, in addition of controlling the turn signals using the Ackerman-Jeantand model with an electronic differential system.

The power stage was designed to receive the activation signals and the power distribution by pulse width modulation (PWM) signals, which activate the three-phase inverter of each motor, made up of six pairs groups of metal field-effect transistors (MOSFET) connected in parallel for each motor coil. The protection, the instrumentation of the battery bank, and the connection conductors of the motors were calculated and selected.  Finally, through the cost analysis, it was determined that the elements, which constitute the total project, have a cost of $ 11521 US dollars.

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References

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Published

01-06-2021

How to Cite

Arnez Mercado, B. N., & Montaño Bautista, E. G. (2021). Power and control stage design for an experimental electric vehicle. Journal Boliviano De Ciencias, 17(50), 149–169. https://doi.org/10.52428/20758944.v17i50.19

Issue

Section

Applied Engineering Project

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