Gear shifting control method and device based on vehicle recovery power and vehicle

The invention discloses a gear shifting control method and device based on vehicle recovery power and a vehicle, relates to the technical field of vehicle control, and discloses a gear shifting control method based on the vehicle recovery power, and the gear shifting control method based on the vehicle recovery power comprises the steps that a wheel edge sliding recovery torque and a braking recovery target torque are obtained; based on the wheel sliding recovery torque and the braking recovery target torque, the total system demand recovery torque is obtained; based on the system total demand recovery torque, the system total demand recovery power is obtained; obtaining the maximum power generation power of the initial gear; and when the total demand recovery power of the system is greater than the maximum generation power of the initial gear, lowering the initial gear. The total demand recovery power under the current gear is compared with the maximum motor recovery capacity, namely the maximum power genera