Oil tank switching control device based on three oil tanks of heavy truck

The utility model provides an oil tank switching control device based on three oil tanks of a heavy truck, the three oil tanks comprise a main oil tank, an auxiliary oil tank I and an auxiliary oil tank II, and the device comprises an oil tank switching switch, an instrument, an electric reversing valve and a fuel sensor; the electric reversing valve is in communication connection with the fuel tank change-over switch, the instrument and the fuel sensor, the fuel sensor is in communication connection with the three fuel tanks, and the fuel tank change-over switch controls the fuel sensor by controlling the electric reversing valve to act, so that fuel tank change-over is achieved, and fuel quantity information is fed back to the instrument. Electric control switching of the three oil tanks is achieved, the total oil storage amount is increased, meanwhile, the bottom area of a single oil tank is small, and the oil cost of the bottom of an oil pipe is saved. 本实用新型提供了一种基于重卡三油箱的油箱转换控制装置，三油箱为：主油箱、副油箱一、副油箱二，所述装置包括：