Rotary member inspection method and rotary member inspection apparatus
AssigneeSubaru Corporation
InventorMasazumi Miyago
Life of this patent
Estimating the term…
Abstract
A rotary member inspection method of inspecting a rotation operation of a rotary member configured to rotate about a rotation shaft includes: causing the rotary member to perform forward rotation and thereafter perform reverse rotation; acquiring one or both of a difference value between a rotating torque at a time of the forward rotation of the rotary member and a rotating torque at a time of the reverse rotation of the rotary member, and an inertia force at a time of switching from the forward rotation to the reverse rotation of the rotary member; and determining whether a rotation failure of the rotary member is present based on one or both of the acquired difference value and the acquired inertia force and a threshold set in advance.
Claims7
A rotary member inspection method of inspecting a rotation operation of a rotary member, the rotary member being configured to rotate about a rotation shaft, the rotary member inspection method comprising:
- causing the rotary member to perform forward rotation and thereafter perform reverse rotation;
- acquiring one or both of a difference value between a rotating torque at a time of the forward rotation of the rotary member and a rotating torque at a time of the reverse rotation of the rotary member, and an inertia force at a time of switching from the forward rotation to the reverse rotation of the rotary member;
- and
- determining whether a rotation failure of the rotary member is present based on one or both of the acquired difference value and the acquired inertia force and a threshold set in advance.
A rotary member inspection apparatus configured to inspect a rotation operation of a rotary member, the rotary member being configured to rotate about a rotation shaft, the rotary member inspection apparatus comprising:
- a driving unit configured to cause the rotary member to rotate in a forward rotation direction and a reverse rotation direction;
- a detector configured to detect one or both of a rotating torque of the rotary member and an inertia force of the rotary member;
- and
- a determination unit configured to determine whether a rotation failure of the rotary member is present based on one or both of a difference value between a rotating torque at a time of forward rotation of the rotary member and a rotating torque at a time of reverse rotation of the rotary member, and an inertia force at a time of switching from the forward rotation to the reverse rotation of the rotary member, the difference value being acquired based on values detected by the detector, the inertia force at the time of the switching from the forward rotation to the reverse rotation of the rotary member being acquired based on values detected by the detector.
A rotary member inspection apparatus configured to inspect a rotation operation of a rotary member, the rotary member being configured to rotate about a rotation shaft, the rotary member inspection apparatus comprising:
- a motor configured to cause the rotary member to rotate in a forward rotation direction and a reverse rotation direction;
- a torque transducer configured to detect one or both of a rotating torque of the rotary member and an inertia force of the rotary member;
- and
- circuitry configured to determine whether a rotation failure of the rotary member is present based on one or both of a difference value between a rotating torque at a time of forward rotation of the rotary member and a rotating torque at a time of reverse rotation of the rotary member, and an inertia force at a time of switching from the forward rotation to the reverse rotation of the rotary member, the difference value being acquired based on values detected by the torque transducer, the inertia force at the time of the switching from the forward rotation to the reverse rotation of the rotary member being acquired based on values detected by the torque transducer.
Dependencies are inferred from the claim text.