US 12,345,586 B2
Rotary member inspection method and rotary member inspection apparatus
Masazumi Miyago, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Jun. 2, 2023, as Appl. No. 18/328,148.
Claims priority of application No. 2022-095005 (JP), filed on Jun. 13, 2022.
Prior Publication US 2023/0408352 A1, Dec. 21, 2023
Int. Cl. G01L 3/04 (2006.01); G01M 15/04 (2006.01)
CPC G01L 3/04 (2013.01) [G01M 15/046 (2013.01)] 7 Claims
OG exemplary drawing
 
1. 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.