Title:
SHIFT CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2022147857
Kind Code:
A
Abstract:
To provide a shift control device which can suppress the wear of a parking gear and a parking wheel caused by ratchetting at which a claw of a parking pole is repeatedly flipped by teeth of the parking gear.SOLUTION: An SBW-CU 80 determines whether or not there occurs ratchetting at which a claw of a parking pole 113 is repeatedly flipped by teeth of a parking gear 114 when switching a shift range of a continuously variable transmission 30 to a parking range, and when it is determined that the ratchetting occurs, switches the shift range of the continuously variable transmission 30 to a neutral range. When an average value of a secondary-shaft rotation number per unit time in a prescribed time of a rotation variation is equal to or larger than a prescribed threshold, the SBW-CU 80 determines that the ratchetting occurs.SELECTED DRAWING: Figure 1
Inventors:
KURODA YASUAKI
Application Number:
JP2021049300A
Publication Date:
October 06, 2022
Filing Date:
March 23, 2021
Export Citation:
Assignee:
SUBARU CORP
International Classes:
F16H63/34; B60T1/06; B60T8/17; F16H61/16; F16H61/28; F16H63/48
Attorney, Agent or Firm:
Kazuhiro Ueda