First it must be large enough to allow the driver to look in all directions to make his decision. Then he must take on the front suspension and its functions, to make it seem as if he is standing by two big wheels. The front wheels are called the drive wheels and the rear wheels are called the suspension wheels. At this point the car can start to resemble a motorcycle, however, a few minor modifications may be required to make it even more appealing.
Most of the early cars, both passenger and truck versions, were rear wheel drive. However, from 1915, only the “RWD” versions, called “Crossover” at the time, continued to be designed with the front suspension set up on all four corners. In 1924, the first hybrid cars were constructed in the USA, powered by four-cylinder engines.
The first hybrid cars had two separate power sources inside the front and rear wheels. During the 1920s, with both power sources sharing a small amount of space, problems with the engine resulted in more frequent breaks and the need for more power. The second source then became the air-cooled, air-transmitted diesel engine, which was used in the first generation of hybrid cars. The power plant was used with two power cables, one connecting to the drive wheels and the other to the back wheel, and all electrical connections were made using a standard 12-volt battery, which was then the standard size for the day. Later cars had a fully-electrified electrical drive system.
The cars’ two power sources in the front were very different. In 1922, Ford announced plans to install electric fans to the front of the car. This was an unprecedented idea, for a car was considered a very personal item, and it gave a better feeling of personal space and security:
At the same time, though, the cars were very hot with high temperatures in the engine compartment, because the air condenser needed cooling, and therefore no air was allowed to pass through the roof of the car. The cars were also quite heavy, and were not well suited to people who worked the outside of the house or in the garage.
When Ford introduced the first EV cars in 1929, they were powered by a high performance V12 engine. This version (designed by Otto von Bülow, and introduced with the Ford Model F) allowed for a top speed of approximately 220kmph (143mph) when it was built, though in reality the performance might have been even more. The
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