IN-VEHICLE HYDRAULIC SUPPLY DEVICE

WIPO Patent Application WO/2017/033888

A1

Provided is an in-vehicle hydraulic supply device for a continuously variable transmission, the device controlling pulley width and thereby varying a speed reduction ratio, wherein the in-vehicle hydraulic supply device is provided with: a closed oil passage provided between a primary pulley and a secondary pulley; a check valve provided between the closed oil passage and a main pump that supplies hydraulic pressure; an auxiliary pump that moves hydraulic oil which is inside the closed oil passage and to which hydraulic pressure supplied from the main pump via the check valve is applied, from either the primary pulley or the secondary pulley to the other; a pulley width detection unit for detecting the state of the pulley width; and a control unit that, on the basis of a gear change command that is inputted and the state of the pulley width detected by the pulley width detection unit, determines the movement direction of either of a positive direction in which the hydraulic oil is moved from the primary pulley to the secondary pulley and a negative direction in which the hydraulic oil is moved from the secondary pulley to the primary pulley, and the movement speed of the hydraulic oil in the positive direction or the negative direction, and drives and controls the auxiliary pump according to the determined movement direction and movement speed.

ETO TAKAMITSU (JP)
SAGARA FUMIYA (JP)

PCT/JP2016/074381

March 02, 2017

August 22, 2016

Click for automatic bibliography generation  

NIDEC TOSOK CORP (JP)

F16H61/02; F16H59/70; F16H61/00; F16H61/662

JP2005180561A	2005-07-07
JP2002523711A	2002-07-30
JP2000193075A	2000-07-14
JP2005282694A	2005-10-13
JPH04157256A	1992-05-29
JP2010261536A	2010-11-18
JP2002327814A	2002-11-15

KITAMURA, Hideaki (JP)

View/Download PDF      PDF Help

Previous Patent: HIGH FREQUENCY COIL AND MAGNETIC RESONANCE IMAGING DEVICE

Next Patent: SILVER POWDER, MANUFACTURING METHOD THEREFOR, AND CONDUCTIVE PASTE