Preparation and storage device of reformed gas and control method thereof

The invention relates to a preparation and storage device of reformed gas and a control method thereof, in particular to the device for generating and utilizing the reformed gas in an automobile engine system, which consists of a reformed gas preparation system, a reformed gas storage system and an electronic control system. The preparation and storage device comprises a fuel storage device (1), a fuel pump (2), a fuel flow control solenoid valve (3), a reforming reactor (4), a reformed gas storage flow control solenoid valve (5), a reformed gas storage device (6), a reformed gas supply flow control solenoid valve (7), an engine exhaust temperature sensor (8), a pressure sensor (9) of the reformed gas storage device, an engine load signal (10), an engine speed signal (11) and an electronic control unit (12). The invention solves the problems of difficult storage and transportation of hydrogen, long hydrogenation time, potential safety hazards and the like of a hydrogen/gasoline blended fuel engine, and utilizes the electronic control unit to lead the reformed gas into a gas intake system of an engine so that the reformed gas is mixed with gasoline in a cylinder to burn, thus the thermal efficiency of the engine is enhanced, and discharge is reduced.