US Patent 10384668 Electric-only driving when approaching frequent destinations

A system for a vehicle includes a traction battery, an engine, and a controller configured to inhibit requests to start the engine in response to both the vehicle being within a first radius about a previously-identified frequent destination and an available battery energy being greater than twice a total battery energy expended during a prior trip to the destination from a second radius about the destination, the second radius being smaller than the first radius.