发明名称 |
Control apparatus for automatic transmission |
摘要 |
An automatic transmission includes: a frictional engagement element arranged to be switched from an engagement state to a disengagement state at a switching from a running range to a neutral range, and including: frictional plates; a first piston arranged to push the frictional plates; a second piston arranged to push the frictional plates; a first hydraulic chamber arranged to receive a hydraulic fluid for pushing the first piston; and a second hydraulic chamber arranged to receive a hydraulic fluid for pushing the second piston; a first discharge speed switching section arranged to switch only a discharge speed of the hydraulic fluid of the first hydraulic chamber; and a control unit configured to increase the discharge speed of the hydraulic fluid of the first hydraulic chamber during a predetermined time period by the first discharge speed switching section at the switching from the running range to the neutral range. |
申请公布号 |
US8439785(B2) |
申请公布日期 |
2013.05.14 |
申请号 |
US20090481058 |
申请日期 |
2009.06.09 |
申请人 |
SATO OSAMU;NONOMURA AKIO;AKEBONO HIROMICHI;JATCO LTD |
发明人 |
SATO OSAMU;NONOMURA AKIO;AKEBONO HIROMICHI |
分类号 |
F16H61/06 |
主分类号 |
F16H61/06 |
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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