Abstract: A vibration damper that damp vibrations transmitted between a drive unit and a support body. The vibration damper comprises: an elastic member interposed between the drive unit and the support body; a rotor supported by the drive unit or the support body; and a vibration translating mechanism that rotates the rotor and reciprocates the rotor between the drive unit and the support body, in response to the vibrations acting in a vibrating direction to isolate the drive unit and the support body away from each other and bring the drive unit and the support body closer together.

Abstract: A vibration damper that effectively damps vibrations moving a drive unit and a support body closer to and away from each other by a rolling mass. The vibration damper comprises: an elastic member interposed between the drive unit and the support body; an arm extending from the drive unit toward the support body; a rolling mass rolled on the arm by a reciprocation of the arm; a support member fixed to the support body while rotatably supporting the rolling mass; and a position changer that changes a contact point between the rolling mass and the arm by reciprocating the arm.

Abstract: A control apparatus for an electrically-operated vehicle that includes an electric motor serving as one of at least one drive power source. The control apparatus includes a vibration-suppression control portion configured to execute a vibration suppression control for causing the electric motor to output a vibration suppression torque by which vibration of the electrically-operated vehicle is to be suppressed. The vibration-suppression control portion is configured to determine whether the electrically-operated vehicle is in a towing state in which the electrically-operated vehicle runs while towing a towed vehicle, or not, and is configured to make a vibration suppression capacity of the vibration suppression control higher when determining that the electrically-operated vehicle is in the towing state, than when determining that the electrically-operated vehicle is not in the towing state.

Abstract: A vibration damper that damp vibrations transmitted between a drive unit and a support body. The vibration damper comprises: an elastic member interposed between the drive unit and the support body; a rotor supported by the drive unit or the support body; and a vibration translating mechanism that rotates the rotor and reciprocates the rotor between the drive unit and the support body, in response to the vibrations acting in a vibrating direction to isolate the drive unit and the support body away from each other and bring the drive unit and the support body closer together.