发明名称 |
Adaptive electronic transmission control system and strategy for nonsynchronous automatic transmission |
摘要 |
An adaptive electronic transmission control for an automatic transmission having multiple-ratio gearing establishing plural torque flow paths between a torque input member and a driven member, the relative motion of the elements of the gearing being controlled by a friction torque establishing member and an overrunning coupling connection between two gear elements of the gearing. A ratio shift is achieved by establishing a driving connection between a selected gearing element and a torque delivery shaft. The shift is achieved by controlling the capacity of the friction element using a fluid pressure actuator. Shift quality is optimized by establishing a bias pressure on a friction element accumulator and by using a feedback control system to control the rate of change of transmission ratio during the shift. |
申请公布号 |
US6278926(B1) |
申请公布日期 |
2001.08.21 |
申请号 |
US20000665353 |
申请日期 |
2000.09.18 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
JAIN PRAMOD K.;KUHN HOWARD CECIL;VODICKA RONALD JAMES |
分类号 |
F16H59/24;F16H59/38;F16H59/40;F16H59/70;F16H59/72;F16H61/00;F16H61/06;(IPC1-7):F16H61/30;B60K41/04 |
主分类号 |
F16H59/24 |
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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