1769, French army engineer Cournot (1725- 1804) made the first car driven by a steam engine.
Due to the failure of the steering system during the test run, it crashed into the wall of the San slave arsenal, which was the first motor vehicle accident in the world
177 1 year, Cournot improved steam car, with a speed of 9.5 kilometers per hour, pulling 4-5 tons of goods.
1794, streeter, an Englishman, first put forward the idea of mixing fuel and air to make mixed gas for combustion.
1796 Italian scientist Volts invented the world's first storage battery, which brought a historic turning point to the birth and development of automobiles.
180 1 year, French Leben put forward the principle of gas engine.
1803, the French engineer Trevico (177 1- 1833) adopted a new type of high-pressure steam engine, which can take 8 people, with an average speed of 13km. Since then, cars driven by steam engines have been applied in practice.
1827, the steam bus made by the Duke of Canary (1793- 1873) became the first steam bus in the world.
It can carry passengers 18 people, with an average speed of 19km.
1838, the British inventor Hennert invented the world's first internal combustion engine ignition device, which was called "a revolution in the history of world automobile development" by the world.
1842, American Goode invented the hard rubber tire, which is very strong and bumps badly when driving.
1858 French engineer Ronin invented the world's first electric ignition spark plug made of ceramic insulating material.
1859 lead acid was invented by a famous French physicist.