发明名称 |
Method of estimating engine cooling fan power losses |
摘要 |
A method for estimating engine torque loss due to a fan. A table of maximum fan torque losses is compiled at a plurality of engine speeds. An engine control unit (ECU) is configured with the table of maximum fan torque losses. A first maximum fan torque loss and a second maximum fan torque loss for an engine speed are retrieved from the table. A maximum fan torque loss for the engine speed is estimated by interpolating between the first maximum fan torque loss and the second maximum fan torque loss. An engine torque loss estimate is calculated by adjusting the maximum fan torque loss based on a set of predetermined fan characteristics.
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申请公布号 |
US2005066715(A1) |
申请公布日期 |
2005.03.31 |
申请号 |
US20030674008 |
申请日期 |
2003.09.29 |
申请人 |
DETROIT DIESEL CORPORATION |
发明人 |
HAWKINS JEFFERY S.;AVERY RICHARD M.;SUPER LEOPOLD |
分类号 |
B60T7/12;G01M15/00;G01M15/04;(IPC1-7):G01M15/00 |
主分类号 |
B60T7/12 |
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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