The invention discloses an electronic control diesel-
methanol dual-fuel engine
control system and method based on the EGR technology and relates to the field of internal
combustion engines. The electronic control diesel-
methanol dual-fuel engine
control system comprises an air inlet
system, an air discharging
system, an EGR
system, a diesel supplying system and a
methanol supplying system. The airinlet system is used for providing
fresh air for an engine. The EGR system is used for leading
waste gas obtained after
combustion into an air
inlet manifold. The diesel supplying system is used forproviding the fuel diesel. The methanol supplying system is used for providing the fuel methanol, and the methanol is sprayed into the air
inlet manifold. The
control system comprises a diesel ECU, amethanol ECU, a sensor and CAN communication, the two ECUs share signals in real time through the CAN communication, the methanol supplying amount and the diesel supplying amount are adjusted in a linked manner, and therefore mode and work condition stable transition can be achieved. By means of the electronic control diesel-methanol dual-fuel engine control system and method based on the EGR technology, high-temperature
waste gas is used for accelerating
vaporization of the methanol, the quality of the methanol
mixed gas is improved, the temperature and the
pressure rise rate in a cylinder are controlled,
NOx discharging and detonating are inhibited, and finally clean and efficient
combustion of the double-fuel engine is achieved.