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US 12,090,649 B2Granted
Malfunction detection device and malfunction detection method
AssigneeNissan Motor Co., Ltd.
InventorsSatoru Hirose, Toru Takagi
Life of this patent
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Abstract
A malfunction detection device compares detected data on a condition at a predetermined part of an apparatus with a threshold so as to determine a malfunction of the apparatus. The malfunction detection device varies the threshold in accordance with a type of a lubricant used for movable parts of the apparatus.
Claims4
A malfunction detection device comprising:
- a control unit for detecting a malfunction of an apparatus including a movable part in accordance with detected data on a condition at a predetermined part of the apparatus, the detected data is calculated according to at least one of a vibration signal indicating a magnitude of vibration and a driving force signal indicating a driving force;
- and
- a storage unit in which a determination model for determining a malfunction for each type of the lubricant is stored,
- the control unit being configured to:
- compare the detected data on the condition at the predetermined part with a predetermined threshold to determine a malfunction of the apparatus;
- acquire a type of a lubricant used for the movable part of the apparatus, and vary the threshold in accordance with the acquired type of the lubricant;
- and
- switch the determination model in accordance with the acquired type of the lubricant used for the moveable part of the apparatus so as to vary the threshold.
5 more elements
Dependencies are inferred from the claim text.