POWER TRANSMISSION DEVICE

Japanese Patent JP2017211090

A

PROBLEM TO BE SOLVED: To provide a power transmission device capable of keeping a state of a second power transmission system in a wider engine rotating region, and further improving fuel consumption.SOLUTION: The power transmission device includes: spring characteristic switching means for optionally switching a spring characteristic of a damper mechanism; detection means for detecting a running state of a vehicle; spring characteristic control means for activating the spring characteristic switching means in accordance with a running state of the vehicle so as to be able to switch to a spring characteristic corresponding to the running state; a torque converter; and clutch means for switching a first power transmission system for transmitting the driving force of an engine to wheels through the torque converter and a second power transmission system for transmitting the driving force of the engine to the wheels without the intervention of the torque converter. The spring characteristic switching means is composed of a damper clutch 10 for disconnecting or connecting a prescribed part in the second power transmission system by a signal from the spring characteristic control means.SELECTED DRAWING: Figure 2

WO/2012/140938	LOCK-UP DEVICE FOR TORQUE CONVERTER
JPH0735854	[Title of Invention] Directly Connected Clutch Control Device for Fluid Transmission Device
WO/2018/199323	VIBRATION DAMPING DEVICE

OHASHI TATSUYUKI
ISHIMURA JUN
OTA ATSUHO
IIDA KAORU

JP2017173607A

November 30, 2017

September 11, 2017

Click for automatic bibliography generation  

F C CKK

F16H45/02; F16H61/14

JP2011214635A	2011-10-27
JP2002147566A	2002-05-22
JP2009115294A	2009-05-28
JP2008151291A	2008-07-03
JPH07293685A	1995-11-07
JP2009074615A	2009-04-09
JP2010084828A	2010-04-15

Takao Koshikawa

Previous Patent: Joining structure provided with a connecting member and it

Next Patent: Fire-resistant structure of a penetrated part