Patent ID: 11927232
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 4:
5. The degradation estimation device according to claim 1, wherein:
the engagement element includes a first component and a second component, the first component and the second component being configured to move relative to each other when the engagement element switches between an engaged state and a disengaged state;
the seal member is disposed in clearance between the first component and the second component and is configured to slide along the second component when the first component moves relative to the second component; and
the load history variable is the corrected number of engagements, the corrected number of engagements being obtained by correcting the number of engagements by a value indicating sliding resistance of the seal member along the second component, the number of engagements being the number of times the engagement element has been engaged since the seal member was attached to the engagement element.