What is the connection mode of the car?

The most commonly used connection between vehicles still belongs to bolt connection.

China's latest national standard "Terms and Definitions of Automobile and Trailer Types" (GB/T3730.1-2001) defines an automobile as follows: a vehicle with four or more wheels driven by power is mainly used for carrying people and/or goods; Towing vehicles carrying people and/or goods; Special purpose.

Domestic automobile brands are: Wuling, Baojun, Hongqi, Chang 'an, Great Wall, Chery, Geely, Roewe, BYD and so on.

Foreign automobile brands include: Toyota, Volkswagen, Audi, Mercedes-Benz, Hyundai, Kia, Peugeot, Cadillac and so on.

1879, German engineer karl benz successfully tested the two-stroke experimental engine for the first time. 1Established "Ben Ci Company and Rheinland Gas Engine Factory" in June, 883, and 1885 manufactured the first Ben Ci patented motor vehicle in Mannheim.

This car is a three-wheeled car with a two-stroke single-cylinder gasoline engine and 0.9 horsepower. This car has some basic characteristics of modern cars, such as spark ignition, water cooling cycle, steel tube frame, leaf spring suspension, rear wheel drive, front wheel steering and brake handle. 18861On October 29th, German engineer karl benz applied for a patent for his motor vehicle.

In June165438+1October of the same year, Karl Benz obtained the German patent (patent number: 37435a). This is considered to be the first modern car in the world. For the above reasons, people generally take 1886 as the first year of automobile, and some scholars take the year when Carl Benz made the first three-wheeled automobile (1885) as the year when the automobile was born.