发明名称 |
Control apparatus and method of belt-type continuously variable transmission |
摘要 |
An apparatus and a method control a belt-type continuously variable transmission of a vehicle having a continuously variable speed ratio, which is a ratio of a rotation speed of an input shaft to a rotation speed of an output shaft. The speed ratio of the transmission is controlled by changing a groove width of each of the pulleys, and a belt clamping pressure applied to at least one of the pulleys to clamp the torque transfer belt also is controlled. Furthermore, the speed ratio of the transmission is set to a low-load speed ratio when it is determined that control of the belt clamping pressure has failed and the belt clamping pressure is raised to a high level. The low-load speed ratio is predetermined so that a load applied to the torque transfer belt is substantially minimized.
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申请公布号 |
US6443871(B2) |
申请公布日期 |
2002.09.03 |
申请号 |
US20010843810 |
申请日期 |
2001.04.30 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TANIGUCHI HIROJI;KONO KATSUMI;MATSUO KENJI;YASUE HIDEKI;TAMURA TADASHI;INOUE DAISUKE;YAMAMOTO YOSHIAKI;MORIOKA HIROSHI;KONDO HIROKI;HABUCHI RYOJI |
分类号 |
F16H9/00;B62M9/06;F16H61/12;F16H61/662;F16H63/50;(IPC1-7):F16H61/12 |
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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