Invention Grant
- Patent Title: Negative torque upshift offgoing clutch control systems and methods
- Patent Title (中): 负转矩提升离合器控制系统和方法
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Application No.: US12833267Application Date: 2010-07-09
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Publication No.: US08579762B2Publication Date: 2013-11-12
- Inventor: Mark A Yacoub , Matthew D. Whitton , Craig J. Hawkins , Mark A. Schang , Robert L. Williams , Christopher Jay Weingartz
- Applicant: Mark A Yacoub , Matthew D. Whitton , Craig J. Hawkins , Mark A. Schang , Robert L. Williams , Christopher Jay Weingartz
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: B60W10/02
- IPC: B60W10/02
Abstract:
A clutch control system for a vehicle includes a shift command module and an offgoing clutch control module. The shift command module commands an upshift of a clutch-to-clutch transmission when an engine torque is less than a predetermined negative torque. The offgoing clutch control module increases an offgoing clutch pressure above a predetermined apply pressure in response to the command. An offgoing clutch is fully engaged when the offgoing clutch pressure is greater than the predetermined apply pressure.
Public/Granted literature
- US20120010046A1 NEGATIVE TORQUE UPSHIFT OFFGOING CLUTCH CONTROL SYSTEMS AND METHODS Public/Granted day:2012-01-12
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