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Patent Searching and Data


Title:
LEARNING CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JPH08159260
Kind Code:
A
Abstract:

PURPOSE: To perform correction of learning so that measurements are adjusted to a value approximately further similar to a target value regardless of a kind of a shift by a method wherein a correction amount limit value setting means to set the upper and lower limit values of a correction amount classified by a kind of a shift by a learning object parameter correcting means is arranged at the learning object parameter correcting means.

CONSTITUTION: A learning control device for an automatic transmission comprises a kind of shift deciding means (a) to discriminate a kind of a shift; a physical amount measuring means (b) to measure a physical amount indicating the shift state of an automatic transmission; and a learning object parameter memory means (c) to store a value of a parameter related to a shift classified by a kind of a shift. A value of a stored parameter is corrected classified by a kind of a shift by a correction means (d) so that the measurements of a physical amount are adjusted to a value approximately similar to a target value. By means of a value of a parameter after correction, a shift is controlled by a shaft control means (e). In this case, the correction means (d) is provided with a correction amount limit value setting means (f), the upper and lower limit values of a correction amount by the correction means (d) are set classified by a kind of a shift and proper learning correction is practicable regardless of a kind of a shift.


Inventors:
IIZUKA NAONORI
Application Number:
JP29812294A
Publication Date:
June 21, 1996
Filing Date:
December 01, 1994
Export Citation:
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Assignee:
JATCO CORP
International Classes:
F16H59/24; F16H59/72; F16H61/00; F16H61/04; F16H61/08; (IPC1-7): F16H61/04
Attorney, Agent or Firm:
Yoshinori Hirata