发明名称 Systems and methods for detecting solenoid armature movement
摘要 A method for detecting actuation of an armature associated with a solenoid includes providing a voltage potential to a solenoid coil associated with the solenoid. The method also includes measuring a current flowing through the solenoid coil. The method further includes switching the voltage potential off when the measured current reaches a predetermined maximum value. The method also includes switching the voltage potential on when the measured current reaches a predetermined minimum value. The method further includes measuring a time period between pulses associated with the switching on and off of the voltage potential. The method also includes comparing the measured time period between pulses with predetermined data indicative of an inductance growth level associated with the coil. The method further includes determining, based on the comparison, a pull-in time of an armature associated with the solenoid.
申请公布号 US7483253(B2) 申请公布日期 2009.01.27
申请号 US20060442143 申请日期 2006.05.30
申请人 CATERPILLAR INC. 发明人 SCHUMACHER JOSEPH WILFRED
分类号 H01H47/00 主分类号 H01H47/00
代理机构 代理人
主权项
地址