发明名称 |
Control apparatus for hydraulically operated vehicular transmission |
摘要 |
Upshifting is performed in a short time without giving rise to shocks. For that purpose, at the time of upshifting, a hydraulic pressure (QUPOFF) of a hydraulic engaging element on disengaging side is controlled such that the input and output speed ratio ("Gratio") of a transmission is decreased to, and held at, a predetermined slipping region (YG(N)S) that is lower than an engaging region (YG(N)L) - YG(N)H) to be set based on a gear ratio which is established by the engagement of the hydraulic engaging element on the disengaging side. The hydraulic pressure (QUPON) of a hydraulic engaging element on engaging side is gradually increased. When "Gratio" once falls below YG(N)L and then increases up again to YGCONOK, QUPOFF is lowered to a predetermined low pressure (QUPOFFB) at a lapse of a predetermined time (YTMUP8). Once "Gratio" > YGCONOK, QUPON is increased to a predetermined high pressure QUPONB at a lapse of a second predetermined time YTMUP3. YTMUP8 is set so as to become shorter with an increase in a vehicle speed, and YTMUP3 is set so as to become longer with an increase in the vehicle speed. <IMAGE> |
申请公布号 |
EP0833081(A3) |
申请公布日期 |
1999.06.23 |
申请号 |
EP19970115640 |
申请日期 |
1997.09.09 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
OHASHI, TATSUYUKI;TANIZAWA, SHOICHI;SHIBUYA, KOUJI;ISHIBASHI, HIROMITSU;OKADA, KAZUO |
分类号 |
F16H59/68;F16H61/02;F16H61/06;F16H61/08;(IPC1-7):F16H61/06 |
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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