发明名称 |
Apparatus and method for shifting into a lower gear of a manual transmission |
摘要 |
A method and apparatus for controllably shifting into a lower gear of a manual transmission is disclosed. A maximum downshift limit value is established and stored in a memory. The downshift speed variable of the manual transmission is set equal to the maximum downshift limit value in response to a valid control condition being determined. The manual transmission is controllably shifted into a lower gear when the engine speed is less than or equal to the downshift speed variable.
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申请公布号 |
US5984830(A) |
申请公布日期 |
1999.11.16 |
申请号 |
US19980199939 |
申请日期 |
1998.11.25 |
申请人 |
CATERPILLAR INC. |
发明人 |
LEHNER, STEVEN E.;RETTIG, MARK E. |
分类号 |
B60W10/06;B60W30/18;F16H59/02;F16H59/44;(IPC1-7):B60K41/04 |
主分类号 |
B60W10/06 |
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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