Invention Grant
US07696716B2 Dual battery vehicle electrical systems 有权
双电池车电气系统

Dual battery vehicle electrical systems
Abstract:
The invention provides a dual battery electrical switchable system 2 for a vehicle having an engine. The vehicle comprises a plurality of first loads 8 and a plurality of second loads 10. The vehicle is switchable between an ON state in which the engine is running, an OFF state in which the engine is not running and a START state, in which at least one of the first loads 8 requires power. The system 2 comprises a first battery 4 arranged to provide power to the first loads 8 and a second battery 6 arranged to provide power to the second loads 10. A switch 18 is provided between the first battery 4 and the second battery 6 and control means 20 is arranged to open the switch 18 only when the vehicle is in the OFF state. A connection system 12 is also provided having a plurality of output terminals 16 for connection to the plurality of primary and secondary loads 8, 10, and two input terminals 14 for connection to the first and second batteries 4, 6 respectively.
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