US Patent 9399462 Methods and systems for controlling engine stopping and starting

Systems and methods for improving operation of a start/stop vehicle are presented. One method includes deactivating an engine start/stop mode in response to an electrical load of a trailer coupled to a vehicle. By deactivating the engine start/stop mode, it may be possible to conserve consumption of electrical energy and maintain state of battery charge to ensure the vehicle has sufficient electrical energy to restart the engine.