The vigorous development of new energy vehicles is inseparable from the support of various countries and governments in tax policies and consumer subsidies. Taking Dutch consumers who buy hydrogen-fueled new energy vehicles as the object, this paper studies the influence of energy efficiency and subsidy policies on their purchase intention. The results show that the car purchase subsidy policy is positively related to the sales of new energy vehicles. When the government car purchase subsidy drops, the sales of new energy vehicles will be depressed. On the contrary, when the government purchase subsidies increase, consumers' willingness to buy also increases, and this relationship also applies to the Swiss market. Ge and Borthwick believe that the new attraction of new energy vehicles to consumers is weak as a whole, and only when the government gives a large subsidy for car purchase can new energy be attractive enough to rival traditional energy vehicles. It can be seen that subsidies for new energy vehicles are an important factor in promoting consumption.

The development of new energy automobile industry is influenced by the interaction of industry participants. Liu & ampKokko analyzed the mutual cooperation and competition between the government, enterprises and consumers, discussed the balance, competition and cooperative relationship between the government and the market, and suggested establishing a group of industrial alliances composed of automobile enterprises, universities and scientific research institutions to promote the cooperation and competition of industrial participants.

The popularization of new energy vehicles is still limited by the technological breakthrough of key components such as batteries, motors and electronic controls, and the development trend of intelligence and electrification. It is considered that battery technology and cost are still obstacles to the commercialization of new energy passenger cars. Driverless cars are the ultimate solution for electric cars to completely replace gasoline ridged cars and hybrid cars. Driverless cars can reasonably plan routes and battery conditions, so as to select charging and driving routes efficiently and scientifically, and solve consumers' concerns about insufficient energy storage of electric vehicles.

It can be seen that the development of new energy automobile industry in various countries still mainly depends on government policy guidance and tax subsidies. The greater the government subsidy, the lower the manufacturing cost and selling price of new energy vehicles. There is a positive correlation between the sales of new energy vehicles and government support: the greater the government support, the higher the sales of new energy vehicles. The development of new energy vehicles is mainly based on batteries, motors and electronic control. Mastering the core technology of "Three Electricity" will master the lifeblood of new energy vehicle manufacturing. In addition, the breakthrough innovation of driverless technology also affects the development direction of the new energy automobile industry.

Summary of domestic literature

At present, environmental and energy issues are highly valued by all countries in the world. Actively developing green energy to replace traditional fuels has become a key research and development project in all countries, and the cherry blossom new energy automobile industry has therefore become a key industry in all countries. In recent years, the central government and the government have invested a lot of R&D funds to promote the R&D, manufacturing and promotion of new energy vehicles in China, but the failure to break through key technologies is still the most serious problem, which also leads to the lack of competitiveness of domestic new energy vehicles. According to the calculation of government investment data from 2000 to 20 15, it is pointed out that the cumulative investment of Chinese government in the field of new energy vehicles is close to 20 billion yuan, and most enterprises are still in the stage of building cars. The investment ratio of technical research and experimental development is not high, there are few technological breakthroughs in production, and related professionals are also very scarce.