Method for refitting and controlling methanol/gasoline dual-fuel control system of new-energy automobile

Abstract

The invention relates to a method for refitting and controlling a methanol / gasoline dual-fuel control system of a new-energy automobile. The technical scheme is that a methanol fuel system is additionally arranged on the prior automobile; an anticorrosion fuel tank is additionally arranged in an automobile boot; the anticorrosion fuel tank is communicated with an ECO control unit and an engine combustion chamber in an engine compartment through an anticorrosion methanol pipeline and a main pipeline; an anticorrosion directional valve is arranged between the original gasoline pipeline and the main pipeline; a gasoline fuel system mainly comprises a gasoline pipeline and a gasoline fuel tank; and the gasoline fuel tank is communicated with the main pipeline and an engine through the gasoline pipeline and the anticorrosion directional valve. The invention overcomes the difficulty in carrying out cold starting of methanol, and prevents the methanol fuel from corroding and swelling the systems of the original automobile; and in addition, the two independent working systems prevent the two fuels from mixed combustion, and enable the filter system to be cleaner and not to be choked for a long time, so that the methanol automobile can not frequently break down due to oil duct choking.

Description

Technical field: [0001] The invention relates to an automobile dual-fuel control system, in particular to a control method for a methanol-gasoline dual-fuel control system of a new energy automobile. Background technique: [0002] The current main technology in the field of methanol vehicles is a single methanol vehicle control unit named "FFV Free Fuel Control Unit". There are serious shortcomings in the large-scale promotion of methanol vehicles. Due to the singleness of the system, the main problem is that methanol is corrosive to many parts of the original vehicle, and the swelling cannot be solved. For example, the corrosion of the electronic fuel pump and oil level sensor of the original vehicle, For the swelling of each rubber part, and due to the difficulty of cold start of a single system, the difficulty of cold and heat, and when there is no backup system in case of failure, and the oil passage blockage caused by blending with gasoline under certain circumstance...

AI Technical Summary

Problems solved by technology

[0002] The current main technology in the field of methanol vehicles is a single methanol vehicle control unit named "FFV Free Fuel Control Unit". There are serious shortcomings in the large-scale promotion of methanol vehicles. Due to the singleness of the system, the main problem is that methanol is corrosive to many parts of the original vehicle, and the swelling cannot be solved. For example, the corrosion of the electronic fuel pump and oil level sensor of the original vehicle, For the swelling of each rubber part, and due to the difficulty of cold start of a single system, the difficulty of cold and heat, and there is no backup system in case of failure, and the oil passage blockage caused by blending with gasoline under certain circumstances

It cannot be started at low temperature, even if it is started in a special way at low temperature, due to the low boiling point of methanol, the emission does not meet the standard and the excessive damage to the cylinder leads to frequent failures of the vehicle

Experimental data proves that it is impossible to travel long distances, shorten the life of the engine, cannot drive normally, and even often breaks the pump halfway, clogs the oil circuit and makes the oil pump insufficient, the engine is abnormal, and the remaining oil is not known. Many serious problems lead to serious problems in methanol vehicles. insufficient

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