发明名称 |
Control apparatus for hydraulically operated vehicular transmission |
摘要 |
<p>Even if a rotational speed of an engine has already increased due to slipping of a fluid torque converter at the time of start of downshifting, a smooth downshifting is performed. For that purpose, there is obtained a speed change developing degree function K(etrm) of the rotational speed of the engine at the time of start of downshifting, the developing degree being dependent on an increase in the rotational speed of the engine due to slipping in the fluid torque converter. The function K(etrm) is obtained with a speed ratio "etrm" of the fluid torque converter at the time of starting of downshifting as a parameter. A boosting correction value QDNOFFZ is computed by multiplying a reference correction value QDNOFFZO by K(etrm) (step S108-5). The hydraulic pressure of the hydraulic engaging element on the disengaging side during downshifting is boosted by the amount of QDNOFFZ (step S108-6). <IMAGE></p> |
申请公布号 |
EP0833082(B1) |
申请公布日期 |
2003.11.26 |
申请号 |
EP19970116232 |
申请日期 |
1997.09.18 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
MIYAMOTO, OSAHIDE;OHASHI, TATSUYUKI;ISHIBASHI, HIROMITSU;SAITO, YOSHIHARU;TOKITA, KANAME |
分类号 |
F16H59/36;F16H59/46;F16H61/00;F16H61/02;F16H61/06;(IPC1-7):F16H61/06 |
主分类号 |
F16H59/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|