Title:
CREEP-PREVENTIVE CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION FOR USE IN VEHICLE
Document Type and Number:
Japanese Patent JP3044903
Kind Code:
B2
Abstract:
PURPOSE: To make the creep-preventive control apparatus fail-safe by detecting a fail of a hydraulic system for controlling the connection pressure of a forward clutch.
CONSTITUTION: In a creep-preventive control apparatus adapted to prevent occurrence of a creep by reducing the connection pressure of a forward clutch when specified conditions are established, determination is made of a deviation ΔNc0 between a target turbine revolution speed Nc0T and an actual turbine revolution speed nc0 (step 700). If the deviation Δ Nc0 is large even after lapse of a specified time length (step 800), a flag F3 which indicates interruption of a neutral control is set (step 803).
Inventors:
Yasunori Nakawaki
Yoshio Shindo
Kazumi Hoshiya
Yoshio Shindo
Kazumi Hoshiya
Application Number:
JP5817392A
Publication Date:
May 22, 2000
Filing Date:
March 16, 1992
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H61/20; F16H61/12; F16H63/50; (IPC1-7): F16H61/20
Domestic Patent References:
| JP61252947A | ||||
| JP1172660A | ||||
| JP6342963U | ||||
| JP627430B2 |
Attorney, Agent or Firm:
Takehiro Makino (2 outside)