The invention belongs to the technical field of electric vehicles, and particularly relates to an active air inlet grille and front end cooling fan control method and
system. The actual environment temperature and the actual vehicle speed of a
new energy vehicle, the actual pressure of an air conditioner pipeline and the actual rotating speed of an air conditioner compressor are collected; and according to the actual vehicle speed, the actual pressure of the air conditioner pipeline, the pressure values of the air conditioner
system under different working conditions and the actual rotating speed and the actual temperature of an air conditioner compressor, the optimal target opening degree of the air inlet grille is matched, the air inlet grille is controlled to execute the air inlet action at the target opening and closing angle, and a fan is controlled to execute the air inlet action at the duty ratio. The problems that in the prior art, an air inlet grille and a fan are passively controlled according to requests of an
air conditioning system and a cooling system, the air inlet amount is unreasonable, the influence on
energy consumption of a whole vehicle is large, and the endurance economy of the vehicle is poor are solved.