Noticeable cost reductions can be obtained by sensorless estimating the position of the shaft in low power DC actuators for automotive applications. A new method is proposed in this paper that allows to estimate the position of the rotor shaft by detecting periodical oscillations of the armature current caused by rotor slotting. A key feature of the developed angular position estimation algorithm is that it is suitable to be implemented even on low cost 10 MHz, 8-bit microcontrollers with few kilobites of memory. 1. -
Sensorless Shaft Position Detection of Low Power DC Motor Drives
DE CARO, SALVATORE;TESTA, Antonio
2004-01-01
Abstract
Noticeable cost reductions can be obtained by sensorless estimating the position of the shaft in low power DC actuators for automotive applications. A new method is proposed in this paper that allows to estimate the position of the rotor shaft by detecting periodical oscillations of the armature current caused by rotor slotting. A key feature of the developed angular position estimation algorithm is that it is suitable to be implemented even on low cost 10 MHz, 8-bit microcontrollers with few kilobites of memory. 1. -File in questo prodotto:
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