A system for controlling a low voltage DC-DC converter for a vehicle is provided. The system includes a low voltage DC-DC converter that converts a voltage of a main battery into a low voltage and outputs the same. An electric device is connected to an output terminal of the low voltage DC-DC converter and a first relay is connected to the output terminal of the low voltage DC-DC converter at a first terminal thereof. An auxiliary battery is connected to a second terminal of the first relay and a controller turns off the first relay and operates the low voltage DC-DC converter to output a minimum voltage capable of operating the electric device when the auxiliary battery is charged to a preset reference value or more while the main battery is being charged.
本发明涉及一种用于控制车辆的低压直流‑直流转换器的系统及方法。所述系统包括:低压DC‑DC转换器,其将主电池的电压转换为低电压并且输出所述低电压;电气装置,其连接到低压DC‑DC转换器的输出端子;第一继电器,其第一端子连接到低压DC‑DC转换器的输出端子;辅助电池,其连接到第一继电器的第二端子;以及控制器,在对主电池充电的同时辅助电池充电至预设的参考值或更大时,所述控制器关断第一继电器,并且操作低压DC‑DC转换器以输出能够运行电气装置的最小电压。
System and method for controlling low voltage DC-DC converter for vehicle
用于控制车辆的低压直流-直流转换器的系统及方法
2020-10-30
Patent
Elektronische Ressource
Chinesisch
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 / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |
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