Invention Grant
- Patent Title: Method for model based clutch control and torque estimation
- Patent Title (中): 基于模型的离合器控制和扭矩估计方法
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Application No.: US12251416Application Date: 2008-10-14
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Publication No.: US09140337B2Publication Date: 2015-09-22
- Inventor: Jy-Jen F. Sah , Bryan R. Snyder , Ali K Naqvi
- Applicant: Jy-Jen F. Sah , Bryan R. Snyder , Ali K Naqvi
- Applicant Address: US MI Detroit DE Stuttgart US MI Auburn Hills DE Munich
- Assignee: GM Global Technology Operations LLC,Daimler AG,Chrysler Group LLC,Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee: GM Global Technology Operations LLC,Daimler AG,Chrysler Group LLC,Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee Address: US MI Detroit DE Stuttgart US MI Auburn Hills DE Munich
- Main IPC: F16D48/06
- IPC: F16D48/06 ; F16H61/06 ; B60K6/44 ; B60K6/365 ; B60W10/115 ; F16H3/72 ; B60K6/445 ; B60K6/547 ; B60W10/02 ; B60W10/06 ; B60W10/08 ; B60W10/30 ; B60W20/00 ; B60K1/02 ; F16H37/08 ; F16H37/10
Abstract:
A method for operating a powertrain through selective application of a hydraulically actuated clutch includes monitoring a state of a pressure control switch operatively coupled the clutch, monitoring a hydraulic line pressure utilized by the pressure control switch to fill the clutch, determining a hydraulic flow rate flowing to the clutch based upon the state of the pressure control switch and the hydraulic line pressure, tracking a clutch fill volume of the clutch based upon the hydraulic flow rate, and controlling operation of the clutch based upon the clutch fill volume.
Public/Granted literature
- US20090105039A1 METHOD FOR MODEL BASED CLUTCH CONTROL AND TORQUE ESTIMATION Public/Granted day:2009-04-23
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