ABNORMALITY DETERMINATION DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION

WIPO Patent Application WO/2016/059959

A1

An abnormality detection device for a continuously variable transmission, wherein an abnormality determination means (U) that determines whether a metal ring of a metal belt (15) of a continuously variable transmission (TM) is broken calculates the compression stiffness (k) of the metal belt (15) from the amplitude ratio (m) of the variation component of the rotational speed of an input shaft (11) and the variation component of the rotational speed of an output shaft (12), from a phase delay (φp.DN) that is obtained by indexing the phase difference between the variation component of the rotational speed of the input shaft (11) and the variation component of the rotational speed of the output shaft (12), and from the belt pitch radius (RDR, RDN) of a drive pulley (13) or of a driven pulley (14), compares the compression stiffness (k) of the metal belt (15) with a preset reference compression stiffness so as to determine whether the metal ring is broken, and can thereby quickly and certainly determine whether the metal ring is broken without the need for a special sensor.

JP2873614	[Title of the Invention] A characteristic learning device for a fluid transmission device in a transmission with a fluid transmission device.
JP2007057103	AUTOMATIC TRANSMISSION CONTROLLER
JP4447070	Transmission shift control device

SAKAGAMI KYOHEI (JP)

PCT/JP2015/077169

April 21, 2016

September 25, 2015

Click for automatic bibliography generation  

HONDA MOTOR CO LTD (JP)

F16H59/68; F16H61/02; F16H61/12; F16H61/662

JP5548765B2	2014-07-16
JP2013024279A	2013-02-04
JP2010078025A	2010-04-08
JP2010078022A	2010-04-08
JP2012503749A	2012-02-09

OCHIAI & CO. (JP)
Patent business corporation Ochiai patent firm (JP)

View/Download PDF      PDF Help

Previous Patent: METHOD AND COMPOSITION FOR SUPPRESSING TAR CONTAMINATION DURING COKE OVEN GAS REFINEMENT

Next Patent: APPARATUS