Title:
CLUTCH DETERIORATION DETECTION DEVICE AND CLUTCH DETERIORATION DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/150564
Kind Code:
A1
Abstract:
A transmission control device (80): that uses the pressure of a hydraulic fluid that is supplied to a first hydraulic chamber (26A) to detect deterioration of a clutch (21) that can adjust the disengagement state between an engine output shaft (11) and a first input shaft (31); and that is configured to comprise a supply control unit (81) that, while keeping rotational speed on the engine output shaft (11) side constant, supplies the hydraulic fluid such that the first hydraulic chamber (26A) of the first clutch (21) reaches a prescribed hydraulic fluid pressure, a clocking processing unit (82) that, once the supply control unit (81) has begun supplying the hydraulic fluid to the first hydraulic chamber (26A) of the first clutch (21), measures the time elapsed until the rotational speed of the first input shaft (31) exceeds a prescribed rotational speed and determines whether the time elapsed exceeds a prescribed allowed time, and a deterioration determination unit (83) that, when the time elapsed exceeds the allowed time, determines that the first clutch (21), which is part of a clutch device (20), has deteriorated.
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Inventors:
TERASHIMA KOJI (JP)
Application Number:
PCT/JP2017/007947
Publication Date:
September 08, 2017
Filing Date:
February 28, 2017
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F16D25/12
Foreign References:
| JPH09280348A | 1997-10-28 | |||
| JPH05164149A | 1993-06-29 | |||
| JP2009202712A | 2009-09-10 |
Other References:
See also references of EP 3425231A4
Attorney, Agent or Firm:
HIBIYA Yukihiko et al. (JP)
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