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A brushless DC electric motor (BLDC), also known as an electronically commutated motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic controller to switch DC currents to the motor windings producing magnetic fields that effectively rotate in space and which the permanent magnet rotor follows.
As an example, the Honda EV project's powerplant team began working with battery manufacturers, proposing a battery format and size that were later adopted as a global standard. [1] In addition, they began developing their own DC brushless motor, since commercially available motors were not efficient enough.
The MEB platform is supported by the APP 310 electric motor, which is a permanent magnet brushless motor. Fully developed by Volkswagen, the name "APP" derives from the arrangement of the motor and the gearbox in parallel with the axle, while "310" references its maximum torque of 310 N⋅m (31.6 kg⋅m; 229 lb⋅ft). Maximum torque is achieved ...
A motor controller converts DC to AC. This design is simpler than that of brushed motors because it eliminates the complication of transferring power from outside the motor to the spinning rotor. An example of a brushless, synchronous DC motor is a stepper motor which can divide a full rotation into a large number of steps.
The motor used a two-pole brushless rotor with a digital controller. Dyson said its efficiency was 84%, which was less than the 96% efficiency that is achieved in some brushless designs. [ citation needed ] In order to deal with the high speed and centrifugal forces , the impeller is made of carbon fibre reinforced polymer ; the shaft is steel.
A stepper motor, also known as step motor or stepping motor, [1] is a brushless DC electric motor that rotates in a series of small and discrete angular steps. [2] Stepper motors can be set to any given step position without needing a position sensor for feedback. The step position can be rapidly increased or decreased to create continuous ...
Brushless excitation creates the magnetic flux on the rotor of electrical machines without the need of carbon brushes. It is typically used for reducing the regular maintenance costs and to reduce the risk of brush-fire. It was developed in the 1950s, as a result of the advances in high-power semiconductor devices. [2]
An axial flux motor (axial gap motor, or pancake motor) is a geometry of electric motor construction where the gap between the rotor and stator, and therefore the direction of magnetic flux between the two, is aligned parallel with the axis of rotation, rather than radially as with the concentric cylindrical geometry of the more common radial ...