发明名称 |
Control apparatus of automatic transmission for vehicle and control method of automatic transmission for vehicle |
摘要 |
In a vehicle having a continuously variable transmission, a road surface gradient estimation block for calculating a road surface gradient and a target vehicle speed value decision block for deciding a vehicle speed according to the road surface gradient are provided. During a vehicle running, when the road surface gradient becomes larger than a stored judgment value, a target vehicle speed is prepared in accordance with a vehicle speed at a time a road gradient value exceeds over an establishment value, a transmission ratio is controlled to have the target speed. Accordingly, a drive force in response to the road surface gradient can be carried out without a change-over of a transmission mode by a driver himself.
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申请公布号 |
US6169949(B1) |
申请公布日期 |
2001.01.02 |
申请号 |
US19990287136 |
申请日期 |
1999.04.07 |
申请人 |
HITACHI, LTD.;HITACHI CAR ENGINEERING CO., LTD. |
发明人 |
SATO KAZUHIKO |
分类号 |
F16H9/00;B60K31/04;B60W30/00;F16H59/14;F16H59/66;F16H61/02;(IPC1-7):G06F17/00 |
主分类号 |
F16H9/00 |
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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