发明名称 |
Adaptive pressure control method for achieving synchronous upshifts in a multiple-ratio transmission |
摘要 |
An adaptive shift control method for a geared multiple ratio transmission having friction elements for clutches and brakes to establish and disestablish gear ratio changes wherein at least one ratio change involves engagement of one friction element in synchronism with disengagement of another friction element. Operating parameters are adapted throughout the life of the transmission to reduce synchronous errors by developing and learning pressure and time adjustments for the friction elements. |
申请公布号 |
US6994647(B2) |
申请公布日期 |
2006.02.07 |
申请号 |
US20030712071 |
申请日期 |
2003.11.13 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
CICALA STEVE;KEYSE BRIAN;SOLIMAN IHAB;SUTER CHARLES;NICKERSON KURT;RIEDLE BRADLEY |
分类号 |
F16H61/06;F16H31/00;F16H61/00 |
主分类号 |
F16H61/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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