发明名称 |
AUTOMATIC TRANSMISSION AND METHOD FOR CONTROLLING SAME |
摘要 |
The automatic transmission includes a first friction engagement element which is engaged when a first gear position is realized and disengaged when a second gear position is realized, a second friction engagement element which is engaged when the second gear position is realized and disengaged when the first gear position is realized, and a controller. The controller causes the second friction engagement element to slip by decreasing an instructional pressure for the second friction engagement element while running in the second gear position, and learns an engagement start pressure of the first friction engagement element based on a change in a differential rotation of the second friction engagement element, or in a parameter that changes in accordance with the differential rotation, at a time when an instructional pressure for the first friction engagement element is increased during the slip. |
申请公布号 |
EP2833029(A1) |
申请公布日期 |
2015.02.04 |
申请号 |
EP20130768718 |
申请日期 |
2013.02.21 |
申请人 |
JATCO LTD;NISSAN MOTOR CO., LTD |
发明人 |
INOUE, TAKUICHIRO;TANAKA, HIROYASU;INOUE, MAMIKO;TAKAHASHI, SEIICHIRO |
分类号 |
F16H61/06;F16H59/46 |
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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