发明名称 |
METHOD OF STARTING AN ELECTRIC MOTOR WITHIN A HYDRAULICALLY DRIVEN EXCAVATOR |
摘要 |
The invention relates to a method for starting at least one asynchronous electric motor of a large hydraulic excavator having a service weight >100 t and having an electrohydraulic drive, in that the particular electric motor is transferred from an idle position to an operating position by using a three-stage motor starting process, wherein the volumetric flow rate of at least one hydraulic pump operatively connected to the electric motor is set to the delivery rate V=0 during all starting stages of the electric motor and the delivery rate V of the hydraulic pump is controlled to a value >0 only after the last starting stage of the electric motor by activating an actuator. |
申请公布号 |
EP2601411(A2) |
申请公布日期 |
2013.06.12 |
申请号 |
EP20110791194 |
申请日期 |
2011.07.29 |
申请人 |
CATERPILLAR GLOBAL MINING HMS GMBH |
发明人 |
ZIPLIES, HERBERT;FILLINGER, SEBASTIAN |
分类号 |
F04B17/03;E02F9/20;F04B49/00;F04B49/02;F04B49/06;H02K17/02;H02P1/26;H02P1/28 |
主分类号 |
F04B17/03 |
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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