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Patent Searching and Data


Title:
FRICTION POWER TRANSMISSION MECHANISM CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015230039
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a friction power transmission mechanism control device capable of suppressing the occurrence of shift shock due to a change in a friction coefficient of a roller pair in an inertia phase.SOLUTION: A friction power transmission mechanism control device comprises: a friction transmission RT that includes a crankshaft 33 and a shift actuator 20 selectively pressing and contacting a First roller pair 11 and a Second roller pair 12 as a plurality of set roller pairs; and an automatic transmission control unit 61 serving as shift control means controlling the friction transmission RT to have a transmission gear ratio in response to a running state by changing a rotation angle of the crankshaft 33, the automatic transmission control unit 61 controlling a pressure force of the control target roller pair out of the roller pairs 11, 12 in a direction of suppressing a change in a transmission force of the roller pair on the basis of an estimated friction coefficient estimated by a friction coefficient estimation means in an inertia phase.

Inventors:
YAMAFUJI KATSUHIKO
KUROKAWA TAKAYUKI
HASHIMOTO MAKOTO
YAMAMOTO KEN
Application Number:
JP2014116350A
Publication Date:
December 21, 2015
Filing Date:
June 05, 2014
Export Citation:
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Assignee:
NISSAN MOTOR CO LTD
International Classes:
F16H61/04; F16H13/04; F16H13/14; F16H15/46
Attorney, Agent or Firm:
西脇 民雄
西脇 怜史