In this project, the
students learn how brushless DC motors have made personal electric vehicles
(PEVs) possible, and calculate how much using a PEV instead of an automobile
for some of their daily driving can impact their production of carbon dioxide, based
on United States driving patterns. In the laboratory, students build a
brushless DC motor using three different control methods, based on a reed
switch, a Hall effect sensor, and optoelectronics, respectively. In the
process, students learn about motors, and compare the components used for
control in terms of their reliability.
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