US Patent 10024291 Engine start and stop control

A vehicle includes an engine and a brake system. The vehicle includes a controller configured to maintain an ignition state of the engine such that changes in an ignition state between engine start and engine stop are inhibited during a pressurization of the brake system that is prompted by the indication and initiated prior to brake pedal application. The maintained ignition state is responsive to receiving an indication of a degraded road condition from a source in a vicinity of the vehicle.