VEHICLE WITH AC-TO-DC INVERTER SYSTEM FOR VEHICLE-TO-GRID POWER INTEGRATION

摘要

Vehicles that are capable of connecting to the AC grid are described that comprise a prime mover and at least one motor generator. In one embodiment, a vehicle may be constructed as a plug-in hybrid system and using the powertrain under controller instruction to either place power on an AC power line (to service AC grids) or to draw power from the AC power line to add electrical energy to the batteries on the vehicle. In some aspects, vehicles may test whether the power needed to service the AC power line may be satisfied by the on-vehicle batteries or, if not, whether and how much power to extract from the prime mover. In some aspects, vehicles may have a thermal management system on board to dynamically supply desired heat dissipation for the powertrain, if the powertrain is using the prime mover to supply power to the AC grid.

主权项

1. A vehicle when the vehicle is connected to an Alternating Current (AC) power line and the vehicle further comprises: a prime mover, a radiator and an exhaust system; an electric motor-generator, the electric motor-generator mechanically coupled to the prime mover via a clutch; a battery, the battery electrically coupled to the electric motor-generator, the battery capable of receiving or supplying electrical energy to the electric motor-generator; an inverter, the inverter electrically coupled to the motor-generator and the battery, the inverter capable of connecting to the AC power line; and
a controller, the controller capable of supplying control signals to the prime mover, the electric motor-generator such that the controller is capable of dynamically affecting the flow of electrical power to or from the AC power line; wherein further the controller further comprises a processor and a non-transient computer readable storage media, the computer readable storage media comprising instructions that, when read by the processor, causes the vehicle to perform the following: receive signals correlating to an electrical load demand on the AC power line; supply electrical power generated from the prime mover to one of the first and the second motor-generators via an inverter to the AC power line when the electrical load demand is not met by the battery; calculate the heat of the radiator; predict the temperature rise with fixed coolant flow in radiator; and if the temperature is not predicted to stabilize, adjust flow rate of coolant in radiator.