Patent ID: 7986116
Filing Date: 2011-07-26
Classification: H02P

Abstract:
1. An apparatus for controlling a torque of an electric rotating machine at a command torque by supplying command voltages in accordance with said command torque to a power conversion circuit driving said electrical rotating machine; comprising: a detecting function of detecting an input voltage of said power conversion circuit to be power-converted and thereafter applied to said electric rotating machine as a drive voltage; and a first control function of setting a command current corresponding to one of two current components in a 2-phase coordinate system of said electric rotating machine in accordance with a command torque directed from outside, and thereafter determining command voltages corresponding to two voltage components of said 2-phase coordinate system on the basis of said command current and said input voltage of said power conversion circuit, to thereby enable controlling a torque of said electric rotating machine in accordance with only said command current corresponding to one of two current components of said 2-phase coordinate system.