An EV battery is a very large store of energy that, most of the time, just sits in a driveway. Bidirectional charging asks the obvious question: why only take power in? If the car can also push power back out, that big battery becomes a backup generator for the house, or a flexible resource for the grid. A 2024 Ford grant focuses on the most compelling use of that capability — keeping the lights on during an outage.
The record: on January 30, 2024, Ford Global Technologies, LLC was granted US11884178B2, “Bidirectional charging events based on predicted and actual power outages.” The CPC classes mix vehicle power-transfer (B60L 55/00, bidirectional vehicle-to-grid) and grid classes (H02J 3/322, 3/001) with prediction and energy-management classes (G06Q 10/04, G06Q 50/06). The system reasons about outages and decides when to discharge.
Here is the mechanism. The vehicle (and its connected software) watches for signals of a power outage — both predicted (a forecast storm, a utility advisory) and actual (the grid going down). On a prediction, it can prepare — ensuring the battery has enough charge to serve as backup. On an actual outage, it triggers a bidirectional discharge event, supplying the home from the car's pack until grid power returns. The intelligence is in deciding when, and how much, to give back.
Why is the prediction part the interesting bit? Because a backup source is only useful if it is ready. A car that happens to be near-empty when the storm hits is no help. By reasoning about predicted outages, the system can manage the battery's state of charge ahead of time — holding back enough energy to be a useful generator when needed, while not needlessly forgoing driving range otherwise. It is energy management under uncertainty.
Trace it to the product and the significance is the car becoming grid-aware infrastructure. An EV that can power your home through an outage is selling resilience, not just transport — a meaningful value proposition in regions with unreliable grids. And the same capability, scaled, makes fleets of EVs into distributed storage the grid can lean on. Ford patenting outage-driven bidirectional events is staking a position in that energy-resilience story.
The caveat: a granted method for outage-based bidirectional charging is logic, not a guarantee of capability, and real vehicle-to-home use depends on the right hardware (a capable charger, proper home wiring, safety interlocks) being present. But the direction is real and consequential. The car is ready to be more than a car; the wire — and the logic deciding when to reverse the flow — is what turns a parked EV into a generator. A 2024 Ford grant is about that logic.