发明名称 |
Adaptive control of servo activating pressure for motor vehicle automatic transmission |
摘要 |
<p>The present invention relates to an adaptive correction of servo activating hydraulic fluid pressure in agreement with driving force variability. In one embodiment according to the present invention, a ratio of a mass airflow of intake air admitted to an engine (Qa) and a revolution speed of a transmission output shaft (No) is calculated, and a parameter (TqSEN) is determined as a function of the ratio (Qa/No). The servo activating hydraulic fluid pressure is determined in response to this parameter. In another embodiment, a turbine shaft speed (Nt) is calculated from the output shaft speed (No) and a gear ratio (g) of a gear position established before shifting. The turbine shaft revolution speed (Nt) is used instead of the output shaft revolution speed (No) in determining a parameter (TqSEN).</p> |
申请公布号 |
GB2239683(B) |
申请公布日期 |
1993.11.03 |
申请号 |
GB19900027059 |
申请日期 |
1990.12.13 |
申请人 |
* NISSAN MOTOR COMPANY LIMITED |
发明人 |
SATOSHI * TAKIZAWA |
分类号 |
F16H61/00;F16H59/38;F16H59/40;F16H59/62;F16H59/64;F16H59/74;F16H61/04;F16H61/06;F16H61/10;F16H61/12;(IPC1-7):F16H61/02;F16H59/14 |
主分类号 |
F16H61/00 |
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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