Controlling a Brushless DC Motor in a Shift-by-Wire System
Shift-by-Wire is about replacing the mechanical link between the automatic
transmission and the shift lever with an electromechanical system.
This will make new safety functions possible and assist the driver
in other ways.
To do this, an actuator with a brushless DC motor is built into the
transmission. It controls the position of the shift valve, which decides
the driving position.
This thesis concerns the controlling of the brushless DC motor. This is
done by programming a shift control unit with a Motorola HC12 microcontroller.
The performance of the motor is then tested and evaluated.
Keywords: Brushless DC motor, Shift-by-Wire, Automatic transmission,
Hall sensors, Pulse width modulation.
Senast uppdaterad: 2019-06-05