发明名称 System and method for controlling electromagnet lift power for material handlers
摘要 A method for operating an electromagnetic lift that includes a generator-driven electromagnet comprises adjusting a position of the electromagnet, in response to a first position command. Upon receiving a lift command, an output power level of a generator is established at a predetermined level above a predefined normal power level. In response to an excess release command, the output power level is set to a first predetermined level below the normal power level. In response to a transport command, the output power level is established as approximately the normal power level. Upon receiving a release command, the output power level is established at a second predetermined level below the normal power level.
申请公布号 US2008239612(A1) 申请公布日期 2008.10.02
申请号 US20070729440 申请日期 2007.03.29
申请人 CATERPILLAR INC. 发明人 ZHANG XIAOJUN;COOPER TIMOTHY LYNN;PORTSCHELLER JAMES IVAN
分类号 H01H47/00 主分类号 H01H47/00
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