Clutch malfunction detection device
The clutch abnormality determination device addresses false clutch malfunction detections by adjusting thresholds based on drive wheel and output rotational speeds, accurately distinguishing between clutch and sensor issues.
JP2026046891APending Publication Date: 2026-03-13TOYOTA JIDOSHA KK
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2026-03-13
Smart Images
Figure 2026046891000001_ABST
Abstract
This disclosure provides a clutch malfunction detection device capable of suppressing false detection of clutch malfunctions. [Solution] The clutch abnormality detection device determines that there is an abnormality in the transmission clutch when the difference between the input rotational speed N_i and the output rotational speed N_o of the transmission is greater than or equal to a threshold Th (processing P6, P7). The clutch abnormality detection device sets the threshold Th to the first threshold Th1 when the output rotational speed N_o is greater than a first predetermined value Vp1 (processing P1, P2). Furthermore, the clutch abnormality detection device sets the threshold Th to the second threshold Th2, which is greater than the first threshold Th1, when the output rotational speed N_o is less than the first predetermined value Vp1 and the rotational speed N_d of the drive wheel correlated with the output rotational speed N_o is greater than or equal to a second predetermined value Vp2 (processing P1, P3, P4).
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Citation Information
Patent Citations
Control device for vehicle
JP2014234856A