When was the earliest EFI engine?

1957 65438+ 10/0/5, the annual meeting of American automotive engineers was held in Detroit. At the meeting, Bendix Company showed their latest research achievement-electronically controlled gasoline injection device, which aroused great interest of Chrysler Automobile Company. They bought this equipment from Bendix company for trial use, but it was not put into production. The following year, Bosch bought out the technical patent of this electronically controlled gasoline injection device. After several years of test and improvement, 1967 finally developed a more advanced D-type electronically controlled gasoline injection engine. At that time, Volkswagen immediately purchased this EFI engine and installed it on a Volkswagen brand car equipped with an automatic transmission, which not only improved fuel utilization, but also reduced noise and exhaust emissions. This is the first car in the world to use EFI engine. Because this kind of car meets the energy-saving and low-consumption environmental protection standards of imported cars in the United States, it is sold in large quantities to the American automobile market. This has also stimulated the enthusiasm of automobile manufacturers in various countries to study EFI engines, and developed various EFI engines such as mechanical, semi-mechanical, single-point and multi-point respectively, making various brands of EFI vehicles become the mainstream models in the international automobile market and favored by automobile consumers in various countries.