Title:
自動変速機のロックアップ制御装置
Document Type and Number:
Japanese Patent JP4119613
Kind Code:
B2
Abstract:
A lock-up control system for an automatic transmission including a torque converter (10) and a lock-up clutch (10a). The lock-up control system comprises an accelerator pedal depression amount sensor (4) for detecting a depression amount of an accelerator pedal, and a controller. The controller includes an accelerator pedal movement speed calculating section for calculating a movement speed of the accelerator pedal. The controller includes a lock-up control section adapted to disengage the lock-up clutch in a condition in which a driving point of the vehicle is within a lock-up condition releasing region in a set lock-up schedule, and to engage the lock-up clutch in a condition in which the driving point is within a lock-up condition applying region. The lock-up control section includes a first lock-up releasing control section adapted to gradually disengage the lock-up clutch from an engaging state and put the lock-up clutch into a disengaging state when the accelerator pedal movement speed is not lower than a set speed and an initial accelerator pedal depression amount in the accelerator pedal depression amount is not smaller than a set accelerator pedal depression amount to establish a driving condition of the vehicle under the engaging state of the lock-up clutch.
Inventors:
Hagiwara Good Parent
Shinya Toyoda
Toru Urasawa
Atsushi Kobayashi
Shinya Toyoda
Toru Urasawa
Atsushi Kobayashi
Application Number:
JP2001003636A
Publication Date:
July 16, 2008
Filing Date:
January 11, 2001
Export Citation:
Assignee:
JATCO Co., Ltd.
Nissan Motor Co., Ltd
Nissan Motor Co., Ltd
International Classes:
F16H61/14; F16H59/42; F16H61/662
Domestic Patent References:
| JP6017921A | ||||
| JP3172666A | ||||
| JP2256964A | ||||
| JP61285141A |
Attorney, Agent or Firm:
Masamichi Ayata