초록 ▼

A controller of an electric motor for improving operation efficiency in performing electric conducting control of the electric motor of an axial air-gap type is provided. Therefore, the controller of the electric motor (3) of the axial air-gap type including a rotor (11) having a permanent magnet, a

A controller of an electric motor for improving operation efficiency in performing electric conducting control of the electric motor of an axial air-gap type is provided. Therefore, the controller of the electric motor (3) of the axial air-gap type including a rotor (11) having a permanent magnet, a first stator (12a) and a second stator (12b) oppositely arranged through the rotor (11) in a rotation axis direction of the rotor (11), and armature windings (13a, 13b) mounted to the first stator (12a) and the second stator (12b) has an electric current command determining section (30) for switching between a both-side stator driving mode for conducting a driving electric current to both the armature winding (13a) of the first stator (12a) and the armature winding (13b) of the second stator (12b), and a one-side stator driving mode for conducting the driving electric current to only the armature winding (13a) of the first stator (12a) in accordance with a request value Tr_c of output torque of the electric motor (3).

대표청구항 ▼

What is claimed is: 1. A controller of an electric motor of an axial air-gap type comprising a rotor having a permanent magnet, and a first stator and a second stator oppositely arranged through the rotor in a rotation axis direction of the rotor;wherein the controller comprises a driving mode switc

What is claimed is: 1. A controller of an electric motor of an axial air-gap type comprising a rotor having a permanent magnet, and a first stator and a second stator oppositely arranged through the rotor in a rotation axis direction of the rotor;wherein the controller comprises a driving mode switching means for switching between a both-side stator driving mode for supplying a driving electric current to both an armature winding of the first stator and an armature winding of the second stator, and a one-side stator driving mode for supplying the driving electric current to only the armature winding of the first stator, in accordance with a request value of output torque of the electric motorwherein the controller further comprises a change-over switch for switching connection between the armature winding of the second stator and a driving circuit of the armature winding of the second stator to a conducting state and an interrupting state, andwherein the driving mode switching means sets the portion between the armature winding of the second stator and the driving circuit of the armature winding of the second stator to the interrupting state by the change-over switch in the one-side stator driving mode.