发明名称 |
CLUTCH TORQUE TRAJECTORY CORRECTION TO PROVIDE TORQUE HOLE FILLING DURING A RATIO UPSHIFT |
摘要 |
A multiple ratio transmission having an input shaft, an output shaft and oncoming clutch and off-going clutch for effecting ratio upshifts is provided. The transmission also includes a transmission controller configured for controlling shifts. During the torque phase of a ratio upshift, the controller increases input torque. Next, the controller estimates an oncoming clutch target torque. The controller controls a torque input to ensure the off-going clutch remains locked. The controller measures an actual transmission value for a torque transmitting element of the transmission and corrects the oncoming clutch target torque using the actual transmission value whereby an increasing torque for the oncoming friction element is achieved with minimal torque transients along the output shaft during the upshift. |
申请公布号 |
US2016017996(A1) |
申请公布日期 |
2016.01.21 |
申请号 |
US201514870778 |
申请日期 |
2015.09.30 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
Teslak Christopher John;Pietron Gregory Michael;Tseng Hongtei Eric;Fujii Yuji;Fodor Michael Glenn;Yanakiev Diana;Lee Seung-Hoon |
分类号 |
F16H61/686;F16H59/14;F16H59/70;F16H61/04 |
主分类号 |
F16H61/686 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Dearborn MI US |