Electric control multi-point sequent injection system for gasoline and gas used in electrometallizing vehicle

Abstract

The electrically controlled multi point sequential ejection system for electrically ejected vehicles using gasoline and gas comprises electrically controlled gasoline ejection system and the electrically controlled gas ejection system which comprises the supply gas storage, pressure adjust and control, with the gas storage composed of charge valve, gas volume display, gas storage bottle and bottle valve, the pressure adjust composed of electromagnetic valve and pressure adjuster, control part composed of oil-gas changeover switch, constant open relay, constant close relay gas ECU, shared track ejection valve, sending out gasoline ECU ejection signal to gasoline ECU which ejects fuel to engine cylinder through fuel ECU according to the program control shared track ejection fuel of the gasoline ECU. It solves the difficulty of redevelopment of fuel ECU, reduces development cost, without changing original electric ejection vehicle oil supply system and engine and vehicle structure, with the drivability and dynamic feature of the vehicle basically unchanged, with reliable safety and convenient maintenance.

Description

technical field [0001] The invention relates to an electronically controlled multi-point sequential injection system using dual-purpose fuels, i.e. gasoline and gas (natural gas or liquefied petroleum gas), for electronic injection vehicles Background technique [0002] In order to realize the use of gas / gasoline dual-purpose fuels for EFI vehicles, the basic requirement of the engine for gas / oil fuels is compatibility, and when using gas (either natural gas or liquefied petroleum gas) fuel, its exhaust emissions must also reach requirements of the corresponding standards. Foreign automobile manufacturers directly produce and sell dual-fuel vehicles with gas / gasoline electronically controlled multi-point sequential injection systems, while domestic automakers are still in the research and development stage for dual-purpose fuel vehicles with gas / gasoline electronically controlled multi-point sequential injection systems. When using a gas / gasoline dual-purpose fuel vehicle, ...

AI Technical Summary

Problems solved by technology

If the intake and exhaust valves of the engine overlap, if there is mixed gas in the intake pipe, backfire will inevitably occur, and the backfire of the engine will affect its efficiency and make its emission value not meet the requirements of the corresponding standards

Due to the insurmountability of the above technical problems, the transformation and use of domestic gas / gasoline dual-fuel vehicles are actually hindered, which directly affects the use of natural gas or liquefied petroleum gas clean energy and the further improvement of the atmospheric environment quality of large and medium-sized cities

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