Commercial vehicle maintenance method and system

The invention relates to a commercial vehicle maintenance method and system. The system comprises a vehicle-mounted terminal and a cloud platform system. Calculation is carried out through sensor data, driving behaviors, use conditions and the like, the problem that traditional vehicles are maintained according to actual driving mileages is abandoned, so that the actual maintenance mileages of all the vehicles are different, and the maintenance frequency of the vehicles with good road conditions and good driving behaviors is reduced; the maintenance cost is reduced, and money is saved for customers; the maintenance frequency of vehicles with poor road conditions and intense driving behaviors is increased, timely maintenance of the vehicles is ensured, and the reliability of the whole vehicle is improved; the driver can be reminded of not intensely driving; a driver carries out maintenance according to the method, so that good economical efficiency and dynamic property of the vehicle can be guaranteed, perform