发明名称 |
Control method for lockup clutch |
摘要 |
A control method of a lockup clutch includes eliminating a loss stroke of a piston by a pre-charge of a supplied hydraulic pressure, increasing a force applied to the piston by further supply of the hydraulic pressure after the pre-charge, controlling a slip rotation speed between a pump impeller and a turbine runner in a torque converter connected to an automatic transmission, and determining a time for performing the pre-charge when a shift stage of the automatic transmission is under a neutral state and a vehicle is substantially stopped. |
申请公布号 |
US6782984(B2) |
申请公布日期 |
2004.08.31 |
申请号 |
US20030386504 |
申请日期 |
2003.03.13 |
申请人 |
AISIN SEIKI KABUSHIKI KAISHA |
发明人 |
TSUNEKAWA KAZUTOSHI;OHTA YUUKI |
分类号 |
F16H61/14;(IPC1-7):F16H61/14 |
主分类号 |
F16H61/14 |
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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