| CPC H02P 21/05 (2013.01) [B60L 15/2009 (2013.01); B60L 2240/423 (2013.01)] | 8 Claims |
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2. A motor control device comprising:
a controller that outputs a first torque instruction signal that is an instruction to specify a torque of an electric motor; and
a damping control unit,
wherein the damping control unit includes:
a first high-pass filter that receives input of a motor speed signal indicating a speed of the electric motor, the first high-pass filter outputting a first signal;
a second high-pass filter that receives input of an estimated motor speed signal obtained from the first torque instruction signal, the second high-pass filter outputting a second signal;
a low-pass filter that receives input of a motor speed deviation signal indicating a deviation between the first signal and the second signal, the low-pass filter obtaining a low-frequency component from the motor speed deviation signal and outputting the low-frequency component as a third signal;
a third high-pass filter to which a feedback signal is inputted; and
a first amplifier to which an output signal from the third high-pass filter is inputted,
wherein a signal given by adding up the second signal and the third signal is subtracted from the first signal to obtain the feedback signal, and a second torque instruction signal obtained based on the feedback signal is fed back to the first torque instruction signal and is outputted to the electric motor, as a third torque instruction signal,
wherein the second torque instruction signal is outputted from the first amplifier.
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