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Motor and Control Systems

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All e-Moto electric vehicles are powered by high performance brushless hub motors. e-Moto’s hub motors are sealed, and have no internal wearing parts allowing for ultimate in weatherproof, maintenance free operation. Whereas both the Power Assist Bicycles and Electric Scooters use the same motor design, there are several key differences in design between the two.

Power Assist Bicycle Motors: Weighing just over 7-pounds, the hub motor installed on all e-Moto electric bikes is rated at a continuous output of 250-watts. (Beware of bike motors advertised with high wattage figures—they likely are peak wattage capability, not continuous output rating.) These 26 and 37 volt, 3-phase DC motors also have an internal reduction gear that amplifies the motors output—making it perform on par with motors of twice the wattage!

G-Series Electric Scooter Motors: e-Moto Electric Scooters are available in continuous wattage ratings of 2,000-5,000 (2kw to 5kw), depending on model. These motors lack the reduction gear of their bike counterparts but make up for it with much larger motors and higher operating voltages—up to 72-volts! Scooter motors are 3-phase DC, and use internal hall-effect sensors to monitor performance.


Power Assist Bicycle Controllers: All e-Moto electric bikes use our VPAC (Variable Pedal Assist Controller) multi-speed controller. The VPAC controller uses an input signal from the bikes torque sensor to provide the power to the motor. The latest generation of VPAC controller offers 2-speeds of assist, that is rider selectable from the bikes dashboard. The low-speed controller setting limits the assist to 10-mph or below—which helps your get up to speed quickly, and keeps lots of power in reserve for hill, all while giving the rider a greater aerobic workout at cruising speed. The high setting provides the full 15-mph assist.

G-Series Electric Scooter Controllers: Due to the high voltages present in e-Moto’s electric scooter drive systems; each model in the G-series of electric scooters requires a special motor controller tailored to its specific current requirements. All G-series controllers are based on a linear PCM-style circuit design, but several have unique features to their model, such as: regenerative breaking on the G6 Lithium, and the state of the art battery switching system on the G3 Lithium.