To improve electric cost in a moving body by shutting off power supply to a computing device as quickly as possible, when energization abnormality occurs in the computing device.SOLUTION: A power supply system of a moving body, is equipped with a battery 2, a plurality of sub ECUs 11 to 13 capable of transmitting a control signal to a device of the moving body, a center ECU 20 that is respectively communicated and connected to the sub ECUs 11 to 13, and totally controls the sub ECUs 11 to 13, and a relay device that relays a power supply path between the battery 2, at least one sub ECU, and the center ECU 20. The relay device has a plurality of fuses 31 to 33 that respectively control the on/off state of power supply from the battery 2 to at least one sub ECU. The center ECU 20 can communicate with the semiconductor fuses 31 to 33 and has an MCU 21 that controls the on/off state of the semiconductor fuses 31 to 33.SELECTED DRAWING: Figure 4
【課題】演算装置に通電異常が生じたときに、該演算装置に対する電力供給を出来限り迅速に遮断して、移動体における電費を向上させる。【解決手段】バッテリ2と、移動体が有するデバイスに制御信号を送信可能な複数のサブECU11~13と、サブECU11~13とそれぞれ通信接続され、サブECU11~13を統括制御する中央ECU20と、バッテリ2と少なくとも1つのサブECU及び中央ECU20との間の電源経路を中継する中継装置とを備え、中継装置は、バッテリ2から少なくとも1つのサブECUへの電力供給のオン/オフをそれぞれ制御する複数の半導体ヒューズ31~33を有し、中央ECU20は、半導体ヒューズ31~33と通信可能であるとともに、半導体ヒューズ31~33のオン/オフを制御するMCU21を有する。【選択図】図4
POWER SUPPLY SYSTEM OF MOVING BODY
移動体の電源システム
2022-04-04
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 |