Dynamic control of on-board generator inverter input power
A vehicle includes power outlets configured to receive power from an inverter. The vehicle includes power sources configured to supply power to the inverter and a plurality of electrical systems. A controller is programmed to, responsive to detecting a load connected to one of the power outlets, change a maximum power limit of the electrical systems by an amount associated with the one of the power outlets.
1 . A method comprising, by a controller:
operating a power system of a vehicle, configured to supply power to (i) a plurality of electrical systems on-board the vehicle and (ii) an inverter coupled to a plurality of power outlets comprising receptacles configured to receive a mating electric plug, to reserve an amount of power suppliable from the power system for the plurality of power outlets; and
responsive to detecting an off-board load external to the vehicle connected to one of the power outlets, decrease power suppliable from the power system to the on-board electrical systems by a predicted power consumption associated with the one of the plurality of power outlets.
2 . The method of claim 1 further comprising estimating, by the controller, the predicted power consumption as a maximum power consumption associated with the one of the plurality of power outlets.
3 . The method of claim 1 further comprising estimating, by the controller, the predicted power consumption as a maximum power consumption value derived from historical power consumption data measured over a predetermined time interval.
4 . The method of claim 1 further comprising estimating, by the controller, the predicted power consumption as an average power consumption value derived from historical power consumption data measured over a predetermined interval.
5 . The method of claim 1 further comprising changing, by the controller, power available to the on-board electrical systems according to a maximum power associated with the one of the plurality of power outlets responsive to detecting a change of status to the one of the power outlets.
6 . A method comprising, by a controller:
operating a vehicle power system of an electrified vehicle, configured to supply power from at least one of a traction battery and an electric machine to (i) a plurality of electrical systems on-board the electrified vehicle and (ii) an inverter coupled to a plurality of 120 VAC power outlets comprising receptacles configured to receive a mating electric plug; and
responsive to detecting an off-board load external to the electrified vehicle connected to one or more of the plurality of 120 VAC power outlets, decrease power suppliable from the vehicle power system to the on-board electrical systems by a power consumption associated with the one or more of the plurality of 120 VAC power outlets.
7 . The method of claim 6 further comprising decreasing power available to the on-board electrical systems by a maximum power consumption associated with the one or more of the 120 VAC power outlets having a detected off-board load.
8 . The method of claim 6 further comprising limiting power available to the on-board electrical systems to reserve an amount of power for the plurality of 120 VAC power outlets.
9 . The method of claim 8 wherein limiting power available comprises limiting power available based on a maximum power limit for one of the plurality of 120 VAC power outlets.
10 . The method of claim 8 wherein limiting power available comprises limiting power available based on a combined maximum power limit for all of the plurality of 120 VAC power outlets.
11 . The method of claim 8 further comprising increasing a maximum power limit of the on-board electrical systems in response to detecting no off-board loads connected to the plurality of 120 VAC power outlets.
12 . The method of claim 6 wherein the power consumption associated with the one or more 120 VAC power outlets comprises a maximum power of at least one of the 120 VAC power outlets adjusted by a power provision efficiency factor that compensates for energy conversion efficiency.
13 . The method of claim 6 further comprising determining the power consumption based on historical power consumption data measured over a predetermined interval.
14 . A method comprising, by a controller:
limiting power available from a power system of an electrified vehicle to a plurality of electrical systems on-board the electrified vehicle based on a reserved power available from an inverter powered by the power system and coupled to a plurality of power outlets comprising receptacles configured to receive a mating electric plug of an off-board load external to the electrified vehicle, the reserved power based on a maximum power limit of at least one of the plurality of power outlets having an associated detected off-board load.
15 . The method of claim 14 wherein the reserved power is based on the maximum power limit and a power provision efficiency factor to compensate for energy conversion efficiency.