Vehicle-mounted air conditioner control method and device, storage medium and vehicle-mounted air conditioner

The invention discloses a vehicle-mounted air conditioner control method and device, a storage medium and a vehicle-mounted air conditioner, and belongs to the technical field of air conditioner control. When a vehicle-mounted air conditioner on a vehicle starts a refrigeration mode, the current temperature in a vehicle cabin and the current battery voltage of the vehicle are detected in real time; when the current battery voltage is larger than the first preset voltage, whether a vehicle cabin is in a preset temperature state or not is judged according to the current temperature, a preset temperature threshold value and the set temperature of the vehicle-mounted air conditioner; when the vehicle cabin is in the preset temperature state, the set air outlet gear of the vehicle-mounted air conditioner is adjusted according to the current temperature and a preset temperature threshold value, and whether the vehicle cabin is in the preset state or not is judged according to the current temperature in the vehicle