发明名称 |
Torque based transfer case control |
摘要 |
A method for controlling operation of a transfer case clutch in a motor vehicle driveline controlled by an engine throttle having a variable position. The transfer case transmits rotating power to a primary power path and to a secondary power path in response to an electric current duty cycle applied to a coil that actuates the clutch. The method includes the steps of determining that a current vehicle speed is less than a reference vehicle speed; determining that the engine throttle position is in a reference throttle position range; determining that a change in vehicle speed is greater than a reference change in vehicle speed; using a current magnitude of torque in the driveline to determine a desired duty cycle for the coil; and applying a duty cycle of the desired magnitude to the coil.
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申请公布号 |
US7473209(B2) |
申请公布日期 |
2009.01.06 |
申请号 |
US20060501269 |
申请日期 |
2006.08.09 |
申请人 |
FORD GLOBAL TECHNOLOGIES, LLC |
发明人 |
TODD MATT;GLAB JOHN A.;RODRIGUES ASHOK |
分类号 |
B60W10/02;B60W10/04 |
主分类号 |
B60W10/02 |
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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