The invention provides a vehicle power supply system capable of preventing a situation that an abnormality is determined to occur in a main power supply system due to the fact that a starter motor is operating. A vehicle power supply system (1) is mounted on a vehicle (V) provided with an internal combustion engine (ICE), and is provided with a main power supply system (10) having a main low-voltage power supply (11), and a backup power supply system (20) having a backup low-voltage power supply (23). A starter motor (13) for starting the internal combustion engine is connected to the main power supply system. At least one of a main power supply system, a backup power supply system, an ECU (50) that can control an internal combustion engine and a starter motor, and a backup power supply control device (25) of the backup power supply system does not execute an abnormality determination process for determining whether or not an abnormality has occurred in the main power supply system when the starter motor is operating. Alternatively, it is determined that there is no abnormality in the main power supply system in the abnormality determination process.
本发明提供一种车辆电源系统,能够防止由于起动电动机正在动作而误判定为在主电源系统中发生了异常的情况。车辆电源系统(1)搭载在具备内燃机(ICE)的车辆(V)上,并具备:具有主低压电源(11)的主电源系统(10)、以及具有备用低压电源(23)的备用电源系统(20)。在主电源系统上连接有使所述内燃机起动的起动电动机(13)。能够控制主电源系统、备用电源系统、内燃机以及起动电动机的ECU(50)和备用电源系统的备用电源控制装置(25)中的至少一方在起动电动机正在动作时,不执行判定主电源系统是否发生了异常的异常判定处理,或者在异常判定处理中判定为在主电源系统中没有发生异常。
Vehicle power supply system
车辆电源系统
2023-01-03
Patent
Electronic Resource
Chinese
IPC: | 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 |
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