Patent ID: 11872898
Assignee: DENSO CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 19:
20. An abnormality diagnosis method for performing an abnormality diagnosis of a plurality of motor systems that include a motor for moving a moving body, the abnormality diagnosis method comprising:
identifying a comparison target system that is a first motor system, among the plurality of motor systems, that is a comparison target in relation to a diagnosis target system that is a second motor system, among the plurality of motor systems, that is a target of the abnormality diagnosis;
acquiring a state-related value that is a value that is related to an operation state of the motor from each of the diagnosis target system and the comparison target system; and
performing a comparison of the state-related value that is acquired from the diagnosis target system and the state-related value that is acquired from the comparison target system, and diagnosing a presence or absence of an abnormality in the diagnosis target system using a result of the comparison.