Methanol engine air inlet control method and system

Abstract

The invention provides a methanol engine air inlet control method and system, and relates to the field of vehicle engines. The method comprises the steps that working state information of an engine iscollected firstly, then the target air inlet temperature of the engine is determined according to the working state information of the engine, then the bypass valve opening degree corresponding to the target air inlet temperature of the engine is searched for from a preset storage module, wherein the corresponding relation between the target air inlet temperature of the engine and the opening degree of a bypass valve is pre-stored in the preset storage module, and finally parameter adjustment is conducted on the bypass valve according to the searched opening degree of the bypass valve. According to the method, by optimally controlling an engine air inlet system, the air inlet temperature of the engine is adjusted in real time, so that the heat required by methanol fuel gasification in anengine air inlet channel can be met to the maximum extent under different working conditions of the engine, the gasification of methanol in the air inlet channel is improved, therefore, methanol fueland air can be fully mixed under the action of air flow after an air inlet valve is opened and the methanol fuel and air enter an air cylinder.

Description

technical field [0001] The invention relates to the field of vehicle engines, in particular to a methanol engine air intake control method and system. Background technique [0002] With the steady development of my country's economic construction, the contradiction between the supply and demand of energy fuels is becoming more and more serious, and the problem of alternative fuels has aroused widespread attention. In the process of seeking alternative fuels, methanol fuel has shown unique advantages. With the strong support of the government and relevant local departments, after years of hard work, the research and development of methanol fuel in my country has made great achievements. [0003] The development of existing heavy-duty methanol engines usually borrows the basis of existing mature heavy-duty diesel engines, generally six-cylinder and above engines. Due to the characteristics of methanol fuel, the combustion mode similar to gasoline is generally adopted, so the ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the first aspect of the present invention is to provide a methanol engine air intake control method to solve the problem in the prior art that methanol fuel cannot be fully mixed with air in the engine cylinder

Images