发明名称 |
Gearshift pressure controller using torque ratio of oncoming/offgoing elements and input torque |
摘要 |
A gearshift controller for an automatic transmission comprises an input shaft torque estimating portion for estimating the input shaft torque, a torque dividing ratio setting portion for setting the torque dividing ratio for each friction member of each gear range, and a desired torque calculating portion for calculating the desired torque of each friction member on the basis of the input shaft torque and the torque dividing ratio, and a desired hydraulic fluid calculating portion for calculating the desired hydraulic fluid pressure for each friction member on the basis of the desired torque of the each friction member, and a hydraulic fluid controlling portion for providing the desired hydraulic fluid pressure to each friction member.
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申请公布号 |
US5967942(A) |
申请公布日期 |
1999.10.19 |
申请号 |
US19980132765 |
申请日期 |
1998.08.12 |
申请人 |
UNISIA JECS CORPORATION |
发明人 |
YUASA, HIROYUKI;KASHIWABARA, MASUO;SUEHIRO, KANAME;HORIGUCHI, MASANOBU;MORITA, SUSUMU |
分类号 |
F16H61/06;F16H61/00;F16H61/04;F16H61/08;F16H61/686;(IPC1-7):F16H61/06;F16H59/14 |
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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