Braking method, vehicle and medium

The present application discloses a braking method, a vehicle and a medium, wherein the vehicle comprises a primary braking system, a parking brake, an auxiliary high-pressure gas tank, and a retarder, and the braking method comprises: determining whether a current air pressure value of the auxiliary high-pressure gas tank reaches a preset air pressure value; controlling, in response to the current air pressure value not reaching the preset air pressure value, the auxiliary high-pressure gas tank to carry out air pressure loading; and controlling, in response to failure of the primary braking system and the current air pressure value reaching the preset air pressure value, a first braking torque of the parking brake and a second braking torque of the retarder according to a deceleration signal of the vehicle so as to control the vehicle to brake.