Car power source apparatus

Details Car power source apparatus Car power source apparatus

2007-12-04

2007-12-04

Sherry, Michael (Department: 2836)

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

C307S1320EA

Reexamination Certificate

active

11241927

ABSTRACT:
The car power source apparatus switches a pair of contactors (driving battery relays) connected to positive and negative output sides of a driving battery via a switching circuit with an auxiliary battery as power supply. The switching circuit is provided with a voltage detection circuit to detect auxiliary battery voltage, a series switching circuit to connect coils of the pair of contactors in series and switch both contactor contacts on, and a parallel switching circuit to connect coils of the pair of contactors in parallel and switch both contactor contacts on. When auxiliary battery voltage is higher than a set voltage, it connects the pair of contactor coils in series to switch the contacts on via the series switching circuit, and when auxiliary battery voltage is lower than a set voltage, it connects the pair of contactor coils in parallel to switch the contacts on via the parallel switching circuit.

REFERENCES:
patent: 8-182115 (1996-07-01), None

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