A load and battery charge device in a vehicle electrical system controllably
disconnects
a battery or other stored energy source from the electrical system when the battery
state causes the system voltage to operate below a desired threshold. The device
filters generator ripple voltage during batteryless operation to maintain an acceptable
ripple voltage. The load and battery control device operates to recharge the battery
that is disconnected from the vehicle electrical system at a controlled voltage
independent of the vehicle electrical system voltage. The load and battery control
device controls the rate of battery recharge so as to avoid overburdening the vehicle
electrical system and then reconnects the battery to the vehicle electrical system
once the battery voltage has reached a minimum threshold.
