Invention Grant
- Patent Title: Method of controlling a synchronizer actuator fork of a transmission
- Patent Title (中): 控制变速器同步器执行机构叉的方法
-
Application No.: US13540661Application Date: 2012-07-03
-
Publication No.: US08850916B2Publication Date: 2014-10-07
- Inventor: Christopher Jay Weingartz , Matthew D. Whitton , Steven P. Moorman , Matthew Kempeinen
- Applicant: Christopher Jay Weingartz , Matthew D. Whitton , Steven P. Moorman , Matthew Kempeinen
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: F16H35/00
- IPC: F16H35/00

Abstract:
A method of adjusting a pressure signal to an actuator piston to control movement of a synchronizer actuator fork of a transmission includes moving the synchronizer actuator fork from a start position into a target position by applying an initial fluid pressure value. The time required to move the synchronizer actuator fork is measured to define a measured actuation time, and compared to a target actuation time. A correction factor is applied to the initial fluid pressure value to define a revised fluid pressure value when the measured actuation time is not within a pre-defined time range of the target actuation time. When the measured actuation time is greater than the pre-defined time range of the target actuation time, the initial fluid pressure value is increased. When the measured actuation time is less than the pre-defined time range of the target actuation time, the initial fluid pressure value is decreased.
Public/Granted literature
- US20140007727A1 METHOD OF CONTROLLING A SYNCHRONIZER ACTUATOR FORK OF A TRANSMISSION Public/Granted day:2014-01-09
Information query