Title:
【発明の名称】自動変速機の変速制御装置
Document Type and Number:
Japanese Patent JP2616603
Kind Code:
B2
Abstract:
In an automatic transmission including first and second planetary gear sets and a plurality of friction elements, during an up-shift and a time after the up-shift, a hydraulic pressure of a released friction element is kept at a predetermined value corresponding to the biasing force of a return spring set in the control valve of the friction element for a predetermined time after the end of the up-shift. When a down-shift is carried out immediately after the above-mentioned up-shift, the engagement of the released friction element is rapidly carried out since the hydraulic pressure of the friction element is kept at the predetermined value.
Inventors:
Yusuke Minagawa
Satoshi Takizawa
Satoshi Takizawa
Application Number:
JP14662791A
Publication Date:
June 04, 1997
Filing Date:
May 23, 1991
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F16H61/00; F16H61/02; F16H61/04; F16H61/06; F16H61/10; (IPC1-7): F16H61/00; F16H61/04
Domestic Patent References:
| JP429671A | ||||
| JP5829420B2 |
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)