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公开(公告)号：US20240246420A1
公开(公告)日：2024-07-25
申请号：US18562349
申请日：2022-04-14
发明人： HIDEKI IWAKI , SHINYA SAITO , MIMA FURUKAWA , KENJIRO KUMAZAWA , EIICHI SADAYUKI , TOMOAKI FURUSE
摘要： An in-vehicle cutoff device includes a first input terminal, a first output terminal, a first conductor wire, a second input terminal, a second output terminal, a second conductor wire, a first current detector capable of detecting a current flowing through the first conductor wire or the second conductor wire, a second current detector capable of detecting a current flowing through the first conductor wire or the second conductor wire, a pyrotechnic circuit breaker capable of irreversibly disconnecting the first conductor wire, and controller capable of controlling a cutoff operation of the pyrotechnic circuit breaker in response to the detected currents. The controller causes the cutoff operation of the pyrotechnic circuit breaker to perform the cutoff operation when both of a first current value generated based on a first detection signal and a second current value generated based on the second detection signal exceed an overcurrent threshold.
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公开(公告)号：US20240258790A1
公开(公告)日：2024-08-01
申请号：US18564075
申请日：2022-04-25
发明人： MIMA FURUKAWA , HIDEKI IWAKI , EIICHI SADAYUKI , TOMOAKI FURUSE , KENJIRO KUMAZAWA , SHINYA SAITO
IPC分类号： H02H5/04
CPC分类号： H02H5/047
摘要： A cutoff device includes a conductor wire, a pyrotechnic circuit breaker, a plurality of drive circuits connected to the pyrotechnic circuit breaker in parallel and configured to activate the pyrotechnic circuit breaker, and a control circuit. The control circuit sets an output current value and a period for which the output current is output to each of the drive circuits, and causes the drive circuits to supply the power for activating the pyrotechnic circuit breaker when the pyrotechnic circuit breaker needs to be activated.
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