发明名称 |
Steuereinrichtung für Fahrzeug-Automatikgetriebe |
摘要 |
In a control system for an automotive automatic transmission having a friction element powered by a line pressure, a gear ratio provided by the transmission is measured. An inertial phase keeping time is measured, which is the time for which the transmission assumes an inertial phase. A line pressure adjuster is employed to adjust the line pressure in a manner to harmonize the inertial phase keeping time with a predetermined time. An inertial phase starting time is measured, which is the time elapsed until the inertial phase of the transmission starts. A line pressure increasing device is employed for increasing the line pressure irrespective of condition of the line pressure adjuster when the inertial phase starting time exceeds a first given time. An inhibitor is employed to suppress the operation of the line pressure increasing device in case wherein even when the inertial phase starting time exceeds a second given time longer than the first predetermined time, the change of the gear ratio does not occur. |
申请公布号 |
DE4323037(C2) |
申请公布日期 |
1998.07.09 |
申请号 |
DE19934323037 |
申请日期 |
1993.07.09 |
申请人 |
JATCO CORP., FUJI, SHIZUOKA, JP |
发明人 |
IIZUKA, NAONORI, FUJI, SHIZUOKA, JP |
分类号 |
F16H59/68;F16H61/00;F16H61/06;F16H61/08;(IPC1-7):F16H61/04 |
主分类号 |
F16H59/68 |
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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