Invention Grant
US08925699B2 Powertrain pressure and flow control system for automatic transmissions
有权
用于自动变速器的动力总成压力和流量控制系统
- Patent Title: Powertrain pressure and flow control system for automatic transmissions
- Patent Title (中): 用于自动变速器的动力总成压力和流量控制系统
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Application No.: US13195303Application Date: 2011-08-01
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Publication No.: US08925699B2Publication Date: 2015-01-06
- Inventor: Dongxu Li , Farzad Samie , Chunhao J. Lee , Kumaraswamy V. Hebbale , Chi-Kuan Kao , Andrew L. Bartos , Kevin B. Rober , Bret M. Olson
- Applicant: Dongxu Li , Farzad Samie , Chunhao J. Lee , Kumaraswamy V. Hebbale , Chi-Kuan Kao , Andrew L. Bartos , Kevin B. Rober , Bret M. Olson
- 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: F16H45/02
- IPC: F16H45/02 ; F16D25/12 ; F16H61/02 ; F16K99/00
Abstract:
A pressure and flow control system includes a hydraulically-controlled component, a pilot valve, and a regulating valve. The pilot valve is configured to produce a pilot signal and includes a first valve, which is a MEMS microvalve. The regulating valve is in fluid communication with the pilot valve, and is configured to receive the pilot signal. The regulating valve is further configured to output a control signal, which controls the hydraulically-controlled component.
Public/Granted literature
- US20120090703A1 POWERTRAIN PRESSURE AND FLOW CONTROL SYSTEM FOR AUTOMATIC TRANSMISSIONS Public/Granted day:2012-04-19
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