A method and device for controlling a running mode of a hybrid vehicle are provided. The method includes monitoring power consumption of a battery when the hybrid vehicle is driven in an electric vehicle (EV) mode and calculating a threshold value for starting an engine. Then, whether to change the running mode of the hybrid vehicle is determined using the power consumption of the battery and the threshold value for starting the engine.

The disclosure provides an engine control method, system, and vehicle, and the vehicle comprises a battery and an engine, wherein the method includes: obtaining a current maximum discharge power value of the battery, and a current maximum external characteristic power value of the vehicle; obtaining a current opening value and a current opening change rate of an accelerator pedal of the vehicle; determining a driving intention based on the current opening value and the current opening change rate; and controlling start and stop of the engine according to the driving intention, the current maximum discharge power value, and the current maximum external characteristic power value of the vehicle. Since the driving intention is determined by the current opening value and the current opening change rate in advance, and based on the determined driving intention, in combination with the current maximum discharge power value of the battery and the current maximum external characteristic power value of the vehicle, the power response is carried out in advance so as to ensure that a larger power request can be satisfied at the next moment, thus avoiding the case where the engine is unnecessarily started or is not started in time.

A vehicle control system and method include processors that determine that an energy storage device of a vehicle will have insufficient energy to power a propulsion system of the vehicle under a first set of operational settings to move the vehicle from a first location within a powered segment to a designated second location that is outside of an unpowered segment of a route. Responsive to determining that the energy storage device will have insufficient energy, the processors change one or more settings of the vehicle to operate the vehicle under a second set of operational settings while the vehicle moves within the powered segment of the route to charge the energy storage device to a greater extent relative to operating of the vehicle according to the first set of operational settings.