发明名称 |
Speed shift control and apparatus for control of automatic transmission |
摘要 |
During an upshift in a full-throttle state, the output of a shift command (Us1) from a control unit is followed by a delay in initiation of an actual shift, due to a delay in increase in oil pressure, a rise in the clutch torque load, etc. A shift initiation (Uj) is determined by comparing the input rotational speed (Ni) with the product of multiplication of the output rotational speed (vehicle speed) (No) by the pre-shift gear ratio. The shift point (Mp1) is learning-corrected based on the shift initiation-time engine rotational speed (NeI). Therefore, false learning is avoided even if the engine races during a shift. |
申请公布号 |
US2002160880(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020116746 |
申请日期 |
2002.04.05 |
申请人 |
SEKII TAKAHIRO;YAMAMOTO YOSHIHISA;UNOKI MASAMICHI;MIZUTANI TSUTOMU |
发明人 |
SEKII TAKAHIRO;YAMAMOTO YOSHIHISA;UNOKI MASAMICHI;MIZUTANI TSUTOMU |
分类号 |
F16H59/20;F16H59/36;F16H61/00;F16H61/02;F16H61/08;(IPC1-7):F16H61/04;F16H61/06 |
主分类号 |
F16H59/20 |
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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