Normal cars and SUVs are between 3.7 meters and 5.2 meters in length. Ultra-small ones are less than 3 meters long, and large ones like Maybach are 6 meters long.
Car:
Introduction:
A car is a vehicle that is driven by its own power and does not need to be erected on rails or electricity, and can travel on a motor basis. Broadly speaking, vehicles with four wheels are generally called cars. Although academic circles have long had different views and discussions on "who was the first inventor of the automobile" and there is no completely consistent view, most scholars regard German engineer Carl Benz as the inventor of the automobile. The first inventor. American Henry Ford was the first to mass-produce affordable cars and was the person who popularized cars. In 2016, the No. 2 Hot Complaint was released at the 15th Gala: the number of complaints about automobile consumption ranked second.
2. Basic concept:
The car (Car, invented by Carl Benz) is a modern means of transportation. It was originally translated as "automatic car" in English and is also called "automatic car" in Japan. "Automobile" (car in Japanese Chinese characters refers to what we call train), and other languages ??are also called "automatic cars", except in China.
A non-track vehicle powered by power and with four or more wheels, mainly used for:
-carrying people and/or cargo (items);< /p>
——Towing vehicles or special-purpose vehicles carrying goods (articles);
——Special operations.
This term also includes:
a) Vehicles connected to power lines, such as trolleybuses;
b) Vehicles with a curb weight exceeding 400kg without Three-wheeled vehicles with cabs;
c) Three-wheeled vehicles with cabs whose curb weight exceeds 600kg.
3. Development history
Jet car
In 1680, the famous British scientist Newton conceived the plan of a jet car, using a nozzle to inject steam to propel it. car, but never made it into the real thing.
Steam power
In 1769, the Frenchman N.J. Guignaud built a three-wheeled vehicle driven by steam generated by gas combustion, hoping to replace the horse as Napoleon's The army pulls artillery carts. However, the speed of this kind of car is only 4 kilometers per hour, and it has to stop every 15 minutes to add coal to the boiler, which is very troublesome. Later, the car hit a brick wall during a trip and was shattered
In 1769, Frenchman N.J. Cugnot built the world's first steam-driven three-wheeled car. In 1879, German engineer Karl Benz successfully tested a two-stroke experimental engine for the first time. In October 1883, he founded the "Benz Company and Rhine Gas Engine Factory". In 1885, he made the first Benz patented motor vehicle in Mannheim. The vehicle was a three-wheeled vehicle, using a two-wheel A stroke single-cylinder 0.9 horsepower gasoline engine, this car has some basic features 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. On January 29, 1886, German engineer Carl Benz applied for a patent for his motor vehicle. In October of the same year, Karl Benz's three-wheeled motor vehicle obtained the German patent (Patent No.: 37435a). This is recognized as the world's first modern car. Due to the above reasons, people generally regard 1886 as the first year of the automobile, and some scholars regard 1885, the year when Carl Benz built the first three-wheeled automobile, as the birth year of the automobile.
In 1829, James of England invented a steam car with a speed of 25 kilometers per hour, which could be used as a large sedan. The cars had bulky boilers and lots of coal, emitted black smoke, polluted the streets, made a rumbling noise, and were prone to accidents.
In 1860, French worker Runaud invented the internal combustion engine and used a gas engine of about 1 horsepower to drive a car, but the effect was not good. However, cars were created under the influence of this internal combustion engine. Since then, many people want to improve the internal combustion engine and use it in cars. In 1882, German engineer Wilhelm Daimler began research on internal combustion engines. He invented an automatic ignition device that used an electric spark to ignite the engine, and then built an excellent gasoline engine based on this invention.
This engine rotates at 900 rpm, has a simple and compact structure, and can produce a lot of power. In 1883, Daimler completed this gasoline engine. The next year, it began to be assembled on two-wheeled vehicles, three-wheeled vehicles, and four-wheeled vehicles to create gasoline-engine cars. In particular, the gasoline engine four-wheel truck manufactured in 1886 was equipped with l. 5-horsepower engine.
Gasoline automobile
1885 was the year of a decisive breakthrough in the invention of the automobile. Benz, who was working at the same factory as Daimler at the time, was also working on cars. In 1885, he made a gasoline engine almost at the same time as Daimler, installed it on a car, and achieved success by traveling at a speed of 12 kilometers per hour. This year, Butler in England also invented a car equipped with a gasoline engine. In addition, Italy's Bernard also invented the car, and Russia's Puchlov and Volopov invented a car equipped with an internal combustion engine.
Electric Vehicles
The world’s first study of electric vehicles was the telegraph device completed in the laboratory in 1828 by the Hungarian engineer Anyos Jedlik . The first actually manufactured electric car was invented by American Anderson between 1832 and 1839. The battery used in this electric car is relatively simple and cannot be recharged. In 1899, the German Porsche invented a hub motor to replace the chain drive commonly used in automobiles at that time. Subsequently
The Lohner-Porsche electric car was developed, which used lead-acid batteries as the power source and was directly driven by the hub motor in the front wheel. This was also the first car named after Porsche. At the 1900 Paris World's Fair, the car made its debut under the name Toujours-Contente, causing a sensation.
Subsequently, Porsche also installed two in-wheel motors on the rear wheels of Lohner-Porsche, thus creating the world's first four-wheel drive electric vehicle. But the battery used in this car is very large and heavy, and its top speed is only 60 kilometers per hour. In order to solve these problems, Porsche installed an internal combustion engine on this electric car in 1902 to generate electricity and drive the wheel hub motor. This was also the world's first hybrid car.