发明名称 |
DIAGNOSTIC METHOD AND DIAGNOSTIC DEVICE FOR FAN COUPLING DEVICE |
摘要 |
<p>A fan coupling device 1 connecting an internal combustion engine 31 to a cooling fan 21 comprises an input shaft 3 driven to rotate by the engine 31, a fluid coupling 12 that transmits torque from the input shaft 3 to the cooling fan 21 via a fluid, and a solenoid valve 13 having a valve main body 18 that adjusts a fluid amount in the fluid coupling 12. A determination as to whether or not the valve main body 18 is stuck in a lifted position on the basis of a rotation speed of the cooling fan 21, is started after the elapse of a predetermined time following output of a signal for returning the valve main body 18 to a closed position, The sticking determination can be performed with a high degree of precision without being affected by variation in the rotation speed of the input shaft 3.</p> |
申请公布号 |
EP2514943(A1) |
申请公布日期 |
2012.10.24 |
申请号 |
EP20100837372 |
申请日期 |
2010.11.04 |
申请人 |
NISSAN MOTOR CO., LTD |
发明人 |
KAGEYAMA, YUZO;KUBOTA, MITSUHIKO;NAKAZAWA, TAKASHI |
分类号 |
F01P11/14;F01P7/08;F16D35/02 |
主分类号 |
F01P11/14 |
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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