A vehicle includes: an engine that generates driving force; a motor-generator that generates driving force; a battery electrically coupled to the motor-generator; an electric supercharger that compresses air with electric power supplied by the battery and to supply the compressed air to the engine; a navigation device that determines a route; and a control device including at least one processor and at least one memory coupled to the processor. The at least one processor performs processing including: identifying a downhill section in which a downhill slope on the route is located; determining, based on a state of charge of the battery at present time, an endpoint estimated state of charge of the battery at a point in time when the vehicle reaches an endpoint of the downhill section; and turning on the electric supercharger when the endpoint estimated state of charge is greater than or equal to a predetermined value.

A dual-motor mixed-hybrid powertrain system, by performing pulse modulation control, i.e., series-hybrid intelligent start-stop control or parallel-hybrid intelligent power switching control, on the instantaneous power time-varying functions of an engine and a battery pack, can convert the surface working condition of an analog electric control engine into a simpler line working condition of a digital pulse control (DPC) engine, either a pre-determined high-state line working condition in the high-efficiency combustion area or a pre-determined non-combustion low-state line working condition with zero fuel consumption and zero pollutant emissions multiplexed in time. The traditional fixed one-to-one bidirectional mapping between an engine working condition and a vehicle working condition is converted into a dynamically adjustable many-to-many bidirectional mapping to achieve the full coverage of any overall vehicle working condition, achieving decoupling between a DPC engine working condition and the overall vehicle working condition and decoupling between software and hardware of a hybrid powertrain.