| 摘要 |
PROBLEM TO BE SOLVED: To enhance calculation accuracy of abrasion loss of a brush.SOLUTION: The motor controller includes a current value detection unit, an amount of movement detection unit, and an abrasion loss calculation unit. The current value detection unit detects the current value with which a rotary brushed motor is electrified. The amount of movement detection unit detects the amount of movement of the rotary brushed motor. The abrasion loss calculation unit calculates the abrasion loss of a brush provided in the rotary brushed motor, based on the current value and the amount of movement. |
