Torque control mechanism, damper device phase adjustment mechanism, and torque control mechanism and torque variation suppressing apparatus using the same
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsEiji TSUCHIYA, Yoshihiro MIZUNO, Norio YONEZAWA
Life of this patent
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Abstract
A torque variation suppressing apparatus includes a rotation element, and a plurality of first elastic elements and second elastic elements which apply elastic forces to the rotation element. With a rotation of the rotation element, a torque applied to the rotation element from each of the first elastic elements and the second elastic elements changes periodically, and a phase of the torque applied to the rotation element from at least one of the first elastic elements and the second elastic elements is changed so that an overall torque characteristic applied to the rotation element is set variable.
Claims20
A torque variation suppressing apparatus comprising:
- a rotation unit provided on a shaft to which a torque is transmitted from a rotational drive source;
- and
- an outer circumferential portion provided concentrically with the rotation unit with an axial center of the shaft as a reference and provided separated from the shaft and the rotation unit, wherein
- on the rotation unit and the outer circumferential portion, an urging unit is provided in which an urging force to the shaft is switched between a force in the same direction as a rotation of the shaft and a force in the opposite direction from the rotation, according to a relative rotational position of the rotation unit and the outer circumferential portion.
A phase adjustment mechanism comprising:
- a rotation element;
- an elastic structure that applies, to the rotation element, a torque which changes periodically with a rotation of the rotation element;
- a retainer that retains the elastic structure with a retaining torque which is greater than or equal to a maximum torque applied to the rotation element from the elastic structure;
- and
- a driver unit that applies a drive torque which is greater than a difference between the retaining torque and the maximum torque, to move the elastic structure relative to the retainer, and to consequently set a phase of the torque applied to the rotation element from the elastic structure variable.
A phase adjustment mechanism comprising:
- a rotation element;
- an elastic structure that applies, to the rotation element, a torque which changes periodically with a rotation of the rotation element;
- a retainer that retains the elastic structure with a retaining torque which is greater than or equal to a maximum torque applied to the rotation element from the elastic structure;
- and
- a driver unit that reduces the retaining torque to a torque smaller than the maximum torque, to move the elastic structure relative to the retainer, and to consequently set a phase of the torque applied to the rotation element from the elastic structure variable.
A torque control mechanism comprising:
- a rotation element;
- and
- a plurality of elastic structures that apply elastic forces to the rotation element, wherein
- a torque applied to the rotation element from each of the elastic structures changes periodically with a rotation of the rotation element, and a phase of a torque applied to the rotation element from at least one of the elastic structures is changed so that an overall torque characteristic applied to the rotation element is set variable.
Dependencies are inferred from the claim text.