Brammo Owners Forum
General => Brammo Racing => Topic started by: Brammofan on August 27, 2013, 10:34:00 AM
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Posted to twitter by @ParkerHannifin:
http://www.mechatronictips.com/2013/08/2982/technology/motioncontrol/electric-designs-go-for-a-win/ (http://www.mechatronictips.com/2013/08/2982/technology/motioncontrol/electric-designs-go-for-a-win/)
From the article:
While Parker makes matched inverters for the GVM motor, the small size and light weight required for motorcycle racing requires a special inverter. High efficiency liquid cooling is required to achieve the size reduction in the inverter as well as increase the power available from the motor. But more is needed. Brammo uses an inverter from Rinehart Motion Systems that uses embedded microcontrollers to permit extremely precise control of the power and timing relative to the motor phases. That timing and control are also required to get the best performance from the unique magnetic geometry of the enhanced permanent magnet rotor and stator design. Vector algorithms operate like the distributor in an internal combustion engine. By changing the timing of the current in the three phases, the power curve and response of the motor can be dramatically impacted. The same motor can produce the higher torque at low speed needed for acceleration, and low torque at high speed that is needed for high speed in the straightaway.
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Nice video. Don't pay attention to the subtitles, though.
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"Brammo uses an inverter from Rinehart Motion Systems" AHH HA! I knew IT!
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"Brammo uses an inverter from Rinehart Motion Systems" AHH HA! I knew IT!
Also an Oregon company.