PROBLEM TO BE SOLVED: To provide a monitoring device for the residual capacity of a battery, which is able to monitor a battery state even when a vehicle ignition is off, on another communication network capable of communicating during an ignition-off period of the vehicle, when a battery sensor or the like, which detects a battery state, belongs on a communication network capable of communication only during an ignition-on period of the vehicle.SOLUTION: A monitoring device for a residual capacity of a battery comprises: a battery sensor that belongs to an IG system network capable of communicating only during an ignition-on period of a vehicle and that monitors a residual capacity of the battery; and a battery sensor on a network different from the IG system network. In response to the result of monitoring the residual capacity of the battery, each of the battery sensors alters a bus voltage on the IG system network. Based on the bus voltage on the IG system network, the ECU acquires information about the residual capacity of the battery.
【課題】バッテリの状態を検出するバッテリセンサ等が車両のイグニッションオン時のみ通信可能な通信ネットワーク上に属する場合に、車両のイグニッションオフ時に通信可能な他の通信ネットワーク上において、車両のイグニッションオフ時であっても、バッテリの状態を監視することが可能なバッテリ残容量監視装置を提供すること。【解決手段】車両のイグニッションオン時のみ通信可能なIG系ネットワーク上に属し、バッテリの残容量を監視するバッテリセンサと、前記IG系ネットワークとは異なる他のネットワーク上のとを備え、前記バッテリセンサは、前記バッテリの残容量を監視した結果に応じて、前記IG系ネットワーク上のバス電圧を変更し、前記ECUは、前記IG系ネットワーク上のバス電圧に基づいて、前記バッテリの残容量に関する情報を取得することを特徴とする。【選択図】図1
MONITORING DEVICE FOR RESIDUAL CAPACITY OF BATTERY
バッテリ残容量監視装置
2015-10-05
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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