Abnormality detection device for continuously variable transmission and method of detecting abnormality of the continuously variable transmission
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United States of America Patent
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May 31, 2016
Grant Date -
Aug 20, 2015
app pub date -
Feb 2, 2015
filing date -
Feb 14, 2014
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Abstract
An abnormality detection device for a continuously variable transmission includes: an acquisition module that acquires a control variable for controlling an operation of a forward and reverse switching mechanism that is provided between an engine and a driving wheel to switch between forward rotation and reverse rotation of the driving wheel; and a determination module that determines the control variable for the forward and reverse switching mechanism to be abnormal in the case where a traveling range is selected by the selection unit, a vehicle speed detected by the vehicle speed detection unit is higher than or equal to a predetermined speed, and the control variable for the forward and reverse switching mechanism, acquired by the acquisition module has a value that does not allow a driving force of the engine to be transmitted.
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