To provide a power supply control unit that can detect open fastening of an inter-system switch.SOLUTION: A power supply control unit 1 comprises: a first system 110 that supplies power to a first load 101; a second system 120 that supplies power to a second load 103; an inter-system switch 41 that can connect the first system and the second system to each other and cut off the systems from each other; a switch 42 for a battery that can connect a second power supply 21 and the second system to each other and cut off the power supply and the system from each other; a primary ground fault detection unit 31; a secondary ground fault detection unit 32; and a failure determination unit 33. When the primary ground fault detection unit detects the ground fault of the first system or the second system, it cuts off the inter-system switch and conducts the switch for a battery. The secondary ground fault detection unit specifies the system in which the ground fault is detected, and if the ground fault is resolved, performs restoration control of reconnecting the inter-system switch and cutting off the switch for a battery. When the frequency of repetition of the restoration control and ground fault detection after the detection of the ground fault is equal to or more than a predetermined frequency, the failure determination unit determines the occurrence of open fastening of the inter-system switch.SELECTED DRAWING: Figure 1
【課題】系統間スイッチのオープン固着を検出できる電源制御装置を提供する。【解決手段】電源制御装置1は、第1負荷101に電力を供給する第1系統110と、第2負荷103に電力を供給する第2系統120と、第1系統及び第2系統を接続切断可能な系統間スイッチ41と、第2電源21及び第2系統を接続切断可能な電池用スイッチ42と、1次地絡検出部31と、2次地絡検出部32と、故障判定部33と、を備える。1次地絡検出部は、第1系統又は第2系統の地絡を検出すると系統間スイッチを遮断し、電池用スイッチを導通する。2次地絡検出部は、地絡が検出された系統を特定し、地絡が解消されていれば、系統間スイッチを再接続し、電池用スイッチを遮断する復帰制御を行う。故障判定部は、地絡が検出されてから復帰制御と地絡検出とが繰り返される頻度が所定頻度以上のときに系統間スイッチがオープン固着していると判定する。【選択図】図1
POWER SUPPLY CONTROL UNIT
電源制御装置
24.03.2023
Patent
Elektronische Ressource
Japanisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
POWER SUPPLY CONTROL UNIT AND POWER SUPPLY CONTROL METHOD
Europäisches Patentamt | 2023
|Control device of power supply system and power supply unit
Europäisches Patentamt | 2019
|POWER SUPPLY UNIT AND VEHICLE INCLUDING POWER SUPPLY UNIT
Europäisches Patentamt | 2015
|