发明名称 |
METHOD FOR MONITORING THE STATE OF A BEARING GUIDING AN ELECTRIC MOTOR ON A SHAFT |
摘要 |
<p>The invention relates to a method for monitoring the state of a bearing (13) guiding an electric motor (1) on a shaft (2), comprising the steps of: determining (S100) a first measure m1 for a first distance a1 between a reference point on a housing (12) of the electric motor (1) and a reference point on a rotor (10) of the electric motor (1) in the axial direction of the shaft (2) at a first point in time t1 at which the electric motor (1) has a negative torque; determining (S200) a second measure m2 for a second distance a2 between the reference point on the housing (12) and the reference point on the rotor (10) in the axial direction of the shaft (2) at a second point in time t2 at which the electric motor (1) has a positive torque; comparing (S300) the difference m1-m2 between the first measure m1 and the second measure m2 with a threshold value ms; and recognising (S400) a critical state of the bearing (13) depending on the result of comparing the difference m1-m2 with the threshold value ms.</p> |
申请公布号 |
EP2786110(B1) |
申请公布日期 |
2015.11.04 |
申请号 |
EP20120794306 |
申请日期 |
2012.11.27 |
申请人 |
CONTINENTAL AUTOMOTIVE GMBH |
发明人 |
BAUMANN, THOMAS;TÖNS, MATTHIAS |
分类号 |
G01M13/04 |
主分类号 |
G01M13/04 |
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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