| 摘要 |
PURPOSE:To operate a detection of the torque regardless of the direction of rotation, by eliminating a use of the divider for the operation. CONSTITUTION:The constitution comprises an electromotive force calculator 18, for processing the operation of electromotive force from a terminal voltage of and current in the AC machine, a flux calculator 20, for processing the operation of flux by integrating the electromotive force obtained from said electromotive force calculator 18, multipliers 22, 24, 26, for multiplying the flux obtained from said flux calculator 20 and each phase current, and an output generating device, for generating a torque detection output by adding the product of each phase flux and current obtained from said multipliers. In such way, no use of a divider for the operation can provide an operation of the torque detection regardless of the direction of rotation. |
