A New Type Of Hybrid Vehicle Starting Emission Characteristics Research

With the rapid development of world economy, energy consumption increase greatly, but oil is non-renewable resources, as the main sources oil can mine only 41 years in accordance with proved reserves and production. With fossil fuels for energy, meanwhile, vehicles produced a large number of harmful gas and dust particles, which cause serious damage to people’s health. Subject to energy shortage and stringent emission regulations, technology of hybrid vehicle become a very promising technology route.ISG(Integrated Starter Generator) technology replace traditional automotive Starter and Generator, which largely improve the performance of the car, it is internationally recognized as one developmental direction of new energy vehicles.ISG hybrid engine start by large motor with the faster starting process and more transient, which great impact on the pollutant emission, therefore, it has great significance to explore rapid starting and the influence of frequent starting to emission of the ISG hybrid technology automobile engineThis paper research the emission of ISG hybrid electric vehicle with different drag speed in cold and hot start conditions. The main task includes:(1)This paper introduce the research background and significance of this topic, describe the technical development and home and abroad developmental progress about hybrid combustion and emission of hybrid electric vehicle, at the same time, the full text research contents and technical route are presented.(2)This paper analyze the advantages and disadvantages of each type of motor about ISG hybrid vehicle, put forward the motor in this paper, and analyze the research status and control strategy about the switched reluctance motor.(3)This paper established the model of ISG hybrid technology automobile engine and ISG motor, and proved that engine model satisfies the requirement of accuracy compared with test data of engine. By defining the coolant temperature in engine model, we simulated engine starting at different temperatures, simulated hybrid vehicle engine fast starting and experimental bench of frequent start/stop coupled with the ISG motor model, and provided analysis basis for the next chapter.(4)Based on implementation model coupling, this paper researched the influence about HC、CO、NOX and CO2 emissions to engine under different cold start condition and different ISG motor speed, and analyzed emission compared with the original machine(200 r/min) starting condition.(5)This paper researched the influence about HC、CO、NOX and CO2 emissions to engine under different hot start condition and different ISG motor speed, and analyzed emission compared with the original machine(200 r/min) starting condition.