The emergency power generator vehicle has the following characteristics: Firstly, it is used for emergency purposes, and its continuous operation time is not very long; under normal circumstances, it only needs to work for a few hours, and the duration will not exceed 12 hours. Secondly, it serves as a backup. The emergency power generation set of the vehicle is usually in a standby state, ready to be activated only when the primary power source fails and power is interrupted. Once the main power source is restored to normal operation, the emergency power generation set will immediately shut down.