Invention Grant
- Patent Title: Shift control system for a multiple ratio automatic transmission
- Patent Title (中): 换档控制系统用于多重比例自动变速器
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Application No.: US798587Application Date: 1997-02-11
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Publication No.: US5758302APublication Date: 1998-05-26
- Inventor: Winfried Franz-Xaver Schulz , Johann Kirchhoffer
- Applicant: Winfried Franz-Xaver Schulz , Johann Kirchhoffer
- Applicant Address: MI Dearborn
- Assignee: Ford Global Technologies, Inc.
- Current Assignee: Ford Global Technologies, Inc.
- Current Assignee Address: MI Dearborn
- Main IPC: F16H59/08
- IPC: F16H59/08 ; F16H59/36 ; F16H59/38 ; F16H59/44 ; F16H59/46 ; F16H61/00 ; F16H61/02 ; F16H61/04 ; F16H61/06 ; F16H61/08 ; F16H61/14 ; F16H61/70 ; F16H63/44 ; F16H61/30
Abstract:
A control system for a multiple ratio transmission including two overrunning couplings acting in cooperation with friction clutches and brakes to effect controlled shifts between ratios to reduce inertia torque upon engagement of friction brakes associated with speed ratio downshifts that occur in time-controlled stages following a command for a downshift and for establishing an electronic pressure accumulator effect upon speed ratio upshifts following a command for an upshift.
Public/Granted literature
- US4663559A Field emission device Public/Granted day:1987-05-05
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