Motor Control Apparatus
AssigneeHonda Motor Co., Ltd.
InventorNaoki FUJISHIRO
Life of this patent
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Abstract
A motor control apparatus includes: an electric motor having an outer rotor and an inner rotor which can alter mutual relative phases; a phase alternation device which alters the relative phase; a phase position sensor which detects a phase position with respect to the relative phase; and a fail-decision control unit which sets the relative phase as a maximum value or a minimum value (that is, a most forcing phase and a most weakening phase) in a phase variable area of the phase alternation device in accordance with a rotation number of the electric motor when the phase position sensor does not work.
Claims4
A motor control apparatus comprising:
- an electric motor having a plurality of rotors which can alter mutual relative phases;
- a phase alternation device which alters the relative phase;
- a phase position sensor which detects a phase position with respect to the relative phase;
- a fail-detection device which detects a failure of the phase position sensor;
- and
- a switch setting device which sets the relative phase as a maximum value or a minimum value in a phase variable area of the phase alternation device in accordance with a rotational speed of the electric motor when the phase position sensor does not work.
A motor control apparatus comprising:
- an electric motor having a plurality of rotors which can alter mutual relative phases;
- a phase alternation device which alters the relative phase;
- a phase position sensor which detects a phase position with respect to the relative phase;
- a fail-detection device which detects a failure of the phase position sensor;
- and
- a switch setting device which sets the relative phase as a maximum value or a minimum value in a phase variable area of the phase alternation device in accordance with a field weakening current instruction when the phase position sensor does not work.
A motor control apparatus comprising:
- an electric motor having a plurality of rotors which can alter mutual relative phases;
- a phase alternation device which alters the relative phase;
- a phase position sensor which detects a phase position with respect to the relative phase;
- a fail-detection device which detects a failure of the phase position sensor;
- and
- a switch setting device which sets the relative phase as a maximum value or a minimum value in a phase variable area of the phase alternation device in accordance with the rotation property of a vehicle which is provided with the electric motor when the phase position sensor does not work.
Dependencies are inferred from the claim text.