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Brushless DC Motors are designed with NdFeB magnets to have high power, torque density, and small size structure. It is good for EV, Electric Vehicle and battery power applications. High efficiency, wide speed range, low EMI and no brush maintenance are Brushless Motor benefits.
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1.
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Power and torque density are much higher than the conventional motors.
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2.
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Energy efficiency motor adopts the high magnetic energy permanent
magnet to have high power and torque density, and small size structure.
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3.
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Electrical commutation can perform low noise, low EMI and no brush maintenance.
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4.
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Lower rotor inertia and good heat dissipation, windings of Brushless DC motors are in the stator. In a brush-type motor, the winding is in the rotor.
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5.
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Innovating structure to have high torque performance.
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6.
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Without mechanical commutation, motor speed can be over 10,000 rpm.
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7.
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The innovating structure has an excellent feature in energy saving during heavy-load operation, and high torque at low speed driving. The high efficiency range is much wider than conventional motors.
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8.
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The drive adopts the full functions for vehicle needs. Ex. Battery low voltage protection, alarms, safety switch, FWD/REV, run/stop,?
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[ Brushless DC Motors VS. Induction Motor Vs. Brush Motor ]
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Topic
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Brushless DC Motors
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Induction Motor
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DC Brush Motor
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Compact Size, Light Weight
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◎
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X
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△
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Low Rotor Inertia,
High Speed Rotation
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◎
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△
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X
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No Rotor Copper Lose
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◎
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X
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△
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High Efficiency
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◎
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△
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△
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Heat Dissipation
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◎
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△
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X
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No Carbon & Electric Flash
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◎
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◎
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X
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Low Speed Torque
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◎
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X
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△
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No Brush maintenance
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◎
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◎
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X
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Over Load Capability
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◎
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X
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△
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◎ Excellent △ Acceptable X Poor
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[ Driver Functions ]
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[ Driver protections ]
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Re-Generated braking
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Speed control / torque control
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Buzzer signals
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Key switch
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Safety switch
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Forward / Reverse
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Fault LED
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Over current protection
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Motor over heat protection
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Low voltage protection
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Stall protection
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Driver over heat protection
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Motor phase to phase short circuit protection
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Accelerator initial detection
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