Invention Grant
- Patent Title: Control system and method for synchronization control in dual clutch transmissions
- Patent Title (中): 双离合器变速器同步控制的控制系统和方法
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Application No.: US12850096Application Date: 2010-08-04
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Publication No.: US08504267B2Publication Date: 2013-08-06
- Inventor: Christopher Jay Weingartz , Steven P. Moorman , Xuefeng Tim Tao , Chinar S. Ghike , Andreas Gustavsson
- Applicant: Christopher Jay Weingartz , Steven P. Moorman , Xuefeng Tim Tao , Chinar S. Ghike , Andreas Gustavsson
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: G06F19/00
- IPC: G06F19/00

Abstract:
A control system includes a pressure control solenoid and a flow control solenoid having an input in fluid communication with the pressure control solenoid. A piston adjusts a position of a shift fork and includes a first area in fluid communication with the pressure control solenoid and a second area in fluid communication with the flow control solenoid. A fork sensor senses a position of a shift fork. A slip sensing module estimates slip acceleration between an input shaft and a gear. A flow determining module generates a flow command for the flow control solenoid. A sync control module determines a slip acceleration profile including an estimated slip acceleration, adjusts the estimated slip acceleration based on the measured slip acceleration, and generates a pressure command for the pressure control solenoid based on the adjusted slip acceleration.
Public/Granted literature
- US20110257857A1 CONTROL SYSTEM AND METHOD FOR SYNCHRONIZATION CONTROL IN DUAL CLUTCH TRANSMISSIONS Public/Granted day:2011-10-20
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