Showing posts with label science information. Show all posts
Showing posts with label science information. Show all posts

Thursday, 20 October 2022

 History of Electric Vehicles by lattest tehnology world

 History of Electric Vehicles

The first electric vehicle was built by Frenchman Gustave Trouvé in 1881. It

was a tricycle powered by a 0.1 hp DC motor fed by lead–acid batteries. The

whole vehicle and its driver weighed approximately 160 kg. A vehicle simi-

lar to this was built in 1883 by two British professors.11 These early realiza-

tions did not attract much attention from the public because the technology

was not mature enough to compete with horse carriages. Speeds of 15 km/h

and a range of 16 km were not exciting for potential customers. The 1864

Paris to Rouen race changed it all: the 1135 km were run in 48 h and 53 min

at an average speed of 23.3 km/h. This speed was by far superior to that pos-

sible with horse-drawn carriages. The general public became interested in

horseless carriages or automobiles, as these vehicles were now called.

The following 20 years were an era during which electric vehicles com-

peted with their gasoline counterparts. This was particularly true in

America, where there were not many paved roads outside a few cities. The

limited range of electric vehicles was not a problem. However, in Europe, the

rapidly increasing number of paved roads called for extended ranges, thus

favoring gasoline vehicles.11

The first commercial electric vehicle was Morris and Salom’s Electroboat.

This vehicle was operated as a taxi in New York City by a company created

by its inventors. The Electroboat proved to be more profitable than horse

cabs despite a higher purchase price (around $3000 vs. $1200). It could be

used for three shifts of 4 h with 90-min recharging periods in between. It was

powered by two 1.5 hp motors that allowed a maximum speed of 32 km/h

and a 40-km range.11

The most significant technical advance of that era was the invention of regen-

erative braking by Frenchman M.A. Darracq on his 1897 coupe. This method

allows recuperating the vehicle’s kinetic energy while braking and recharging

the batteries, which greatly enhances the driving range. It is one of the most sig-

nificant contributions to electric and hybrid electric vehicle technology as it

contributes to energy efficiency more than anything else in urban driving.

In addition, among the most significant electric vehicles of that era was the

first vehicle ever to reach 100 km/h. It was “La Jamais Contente” built by

Frenchman Camille Jenatzy. Note that Studebaker and Oldsmobile first

started in business by building electric vehicles.

As gasoline automobiles became more powerful, more flexible, and, above

all, easier to handle, electric vehicles started to disappear. Their high cost di