Multi-battery-pack driving coaxial motor system

The invention relates to a multi-battery-pack driving coaxial motor system, comprising multiple battery packs, a main control system, a battery managing system main controller, multiple battery management system secondary controllers, a motor main controller, multiple motor controllers and multiple motors. The multiple battery packs are correspondingly connected with the multiple battery management system secondary controllers in a one-to-one manner; the multiple battery management system secondary controllers are connected with the multiple motor controllers in a one-to-one manner; the main control system is respectively connected with the battery management system main controller and the motor main controller; the motor main controller is respectively connected with the multiple motor controllers; the battery management system main controller is respectively connected with the multiple battery management system secondary controllers; and the multiple motor controllers are correspondingly connected with the multiple motors. According to the multi-battery driving coaxial motor system disclosed by the invention, the consistency of a power battery can be modified, the service life of the power battery can be prolonged, the battery packs are conveniently replaced, and the operation of a small battery pack is very safe due to low voltage of the small battery pack.