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Feedforward Electronic Torque Ripple Compensation System

IP.com Disclosure Number: IPCOM000038311D
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-31

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Comeaux, WT Koloseus, JC [+details]


This invention addresses the problem of torque ripple in a DC brushless motor. The torque ripple is due to the sinusoidal torque versus rotor angular displacement function and to inaccuracies in electronically commutating the currents in a typical DC brushless motor.