Design Of Exhaust Energy Recovery Control System For Methanol-Hydrogen Engine

With the development of new energy vehicle technology,how to use alternative fuels to achieve more efficient and clean combustion,making alternative fuels more widely used,has become one of the current research hotspots.methanol-hydrogen engines use methanol and dissociated methanol as fuel to help reduce fuel consumption and reduce the emission of harmful gases.It is of great theoretical and practical significance to improve the energy structure and mitigate environmental pollution in China.This article takes a four-cylinder gasoline engine as the research object and converts it into a methanol-hydrogen engine fueled by methanol and dissociated methanol.On this basis,a set of exhaust energy recovery control system is designed,hardware module selection,main controller hardware design,main controller program writing and host computer design and development are carried out,and the data processing of the host computer is intelligent and the engine working conditions The real-time acquisition and dissociated methanol closed-loop control were studied.First of all,from the aspects of function,power consumption and scalability,the hardware modules are selected,and the main controller circuit board is designed and developed according to the interface circuit of each hardware module.Secondly,design and develop the software system,including the host computer software and the main controller software.Based on the architecture of the STM32F407ZGT6 chip and the KEIL platform,the C language is used to design and develop the main controller software program.Based on the QT development platform,write C ++ code to complete the design and development of the host computer software.Finally,debug and test the exhaust energy recovery control system.Tests show that on the basis of completing the basic functions of the control system,the main controller circuit board works stably,and the data of the host computer is effectively processed intelligently.When the throttle is fully open,measure the exhaust temperature data at each engine speed and the corresponding speed.When the engine speed is 2000 r / min and the rated speed is 5500 r / min,measure the exhaust temperature under each load of the engine.Measure the change in the mass of dissociated methanol at different reaction temperatures from 200 ° C to 340 ° C.Tests show that the exhaust energy recovery control system can effectively perform real-time data collection of methanol-hydrogen engine working conditions and dissociated methanol closed-loop control.