Patent ID: 11867246
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 2:
3. The wear volume estimation device according to claim 1, wherein
the temperature history of the contact surface indicates a highest value of the temperature of the contact surface in past,
a first wear volume function is the wear volume function that is used in a case where the highest value belongs to a first temperature range,
a second wear volume function is the wear volume function that is used in a case where the highest value belongs to a second temperature range,
the storage stores information on the first wear volume function and the second wear volume function,
in the case where the highest value belongs to the first temperature range, the processor selects the first wear volume function and calculates the wear volume by using the first wear volume function, and
in the case where the highest value belongs to the second temperature range, the processor selects the second wear volume function and calculates the wear volume by using the second wear volume function.