Title:
SHIFT OPERATION CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP2016008676
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shift operation control device for an automatic transmission in which slip-off of a gear can be positively restricted on the basis of a load threshold set according to a product tolerance for every automatic transmission or aging of component parts of the automatic transmission.SOLUTION: When a prescribed drive gear and a prescribed driven gear are selected under a motion of a shift-and-select shaft 8 in an axial direction and rotation thereof around an axis, a shift operation control device sets a load threshold S on the basis of a maximum value (Fmax) of load acting against a coil spring 60 in reference to detected information of a load sensor 72. In addition, TCU performs trouble judgment during a prescribed period T under a condition that an actuator is driven by a prescribed number of times or more on the basis of the load threshold S.
Inventors:
MITSUISHI SUNAO
Application Number:
JP2014129965A
Publication Date:
January 18, 2016
Filing Date:
June 25, 2014
Export Citation:
Assignee:
SUZUKI MOTOR CORP
International Classes:
F16H61/28; F16H59/08; F16H61/12; F16H63/20
Attorney, Agent or Firm:
Nissei International Patent Office