Extended-range automobile fuel evaporation emission control system

Abstract

The invention belongs to the field of automobiles, and particularly relates to an extended-range automobile fuel evaporation emission control system. The system solves the problems that oil gas is directly discharged into the atmosphere through a vent pipeline in the prior art, so that the environment is polluted and the resources are wasted. According to the technical scheme, the system involvesan oil tank, a pressure sensor, a controller and a frequency converter, wherein the pressure sensor is fixedly arranged in the oil tank, the controller is electrically connected with the pressure sensor and the frequency converter, the top of the oil tank is fixedly provided with a connecting box and a containing box, a gas conveying pipe is fixedly installed on the inner wall of the top of one side of the connecting box in a sealing mode, one end of the gas conveying pipe extends into the containing box and is fixedly connected with the inner wall of one side of the containing box in a sealing mode. According to the system, a driving motor and a rotating motor are started, so that full contact between the activated carbon and the oil gas can be realized, the oil gas can be effectively collected, the oil gas is prevented from being directly discharged into the air, so that pollution to the environment is avoided, and meanwhile, the resource waste is avoided.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an extended-range automobile fuel evaporation emission control system. Background technique [0002] The extended-range electric vehicle is a pure electric drive electric vehicle equipped with ground charging and vehicle power supply functions, and the vehicle controller completes the operation control strategy. The battery pack can be charged by a ground charging point or an on-board charger, and the engine can be fuel or gas. [0003] However, when there is a large amount of oil in the fuel tank, the pressure value of the oil gas inside is relatively high. In order to reduce the pressure, a vent pipe is generally installed on the fuel tank to discharge the oil gas directly into the atmosphere through the vent pipe, which not only pollutes the environment but also Resources are wasted, so we propose a fuel evaporative emission control system for extended-range vehicles to s...

AI Technical Summary

Problems solved by technology

[0003] However, when there is a large amount of oil in the fuel tank, the pressure value of the oil gas inside is relatively high. In order to reduce the pressure, a vent pipe is generally installed on the fuel tank to discharge the oil gas directly into the atmosphere through the vent pipe, which not only pollutes the environment but also Resources are wasted, so we propose an extended-range vehicle fuel evaporative emission control system to solve the above-mentioned problems

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