发明名称 |
Continuously variable chain-belt transmission |
摘要 |
In a continuously variable chain-belt transmission, a ratio-controlling pressure is selectively applied to either one or the other of two pairs of conical disks, while a belt-tightening contact pressure is applied equally in a torque-dependent amount to both disk pairs. A pump pressure generated by a pump is regulated by an offset pressure valve to a pressure level that exceeds the ratio-controlling pressure by a preset amount and at least equals the contact pressure. A current-controlled ratio-controlling valve device directs the ratio-controlling pressure to one or the other of the disk pairs depending on whether the ratio-controlling current is above or below a neutral value. The neutral current value as well as the algorithm describing the functional relationship between the ratio-controlling pressure and the current are continuously updated while the transmission is in use.
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申请公布号 |
US6358167(B1) |
申请公布日期 |
2002.03.19 |
申请号 |
US20000643027 |
申请日期 |
2000.08.21 |
申请人 |
LUK LAMELLEN UND KUPPLUNGSBAU GMBH |
发明人 |
HOLTMANN LUDGER;REUSCHEL MICHAEL |
分类号 |
F16H9/00;F16H61/02;F16H61/662;(IPC1-7):F16H59/00;B60K41/12;F16H61/00;F16H63/00 |
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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