Close up of power system: steam engine, internal combustion engine, electric motor

The steam engine, as a revolutionary power equipment, was born in the 18th and 19th centuries. It was developed in collaboration with numerous scientists and engineers, with James Watt's contribution being particularly significant, as his improvements to the steam engine had historic significance. By burning coal or firewood to produce steam, the piston is driven to move, converting thermal energy into mechanical energy, providing continuous power for transportation vehicles such as trains and ships, greatly changing the way humans travel. The internal combustion engine, as an outstanding technological innovation from the late 19th century to the early 20th century, was jointly created by pioneers such as Nicholas Otto. It releases high-temperature and high-pressure gas energy by burning gasoline or diesel, which drives the piston to reciprocate and cleverly converts thermal energy into powerful mechanical energy, providing wings of speed and efficiency for modern transportation such as cars and airplanes, leading human society into a new era full of power. electric motor.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

The evolution process of the power system of transportation vehicles has mainly gone through three stages: the steam engine era, the internal combustion engine era, and the electric motor era. Steam engine era: In the late 18th and early 19th centuries, steam engines were used as pioneers in the power systems of transportation vehicles and were applied in situations where trains and ships required a large amount of power. A steam engine generates steam by burning coal or wood, which drives the piston to move and convert it into mechanical energy. Representative works of this era include trains designed by Stevenson and steamships designed by Fulton. However, steam engines have a large volume, low efficiency, long start-up time, and require specialized boilers and fuel supply systems, so they have not dominated the field of transportation vehicles. The era of internal combustion engines: From the late 19th century to the early 20th century, the invention and improvement of internal combustion engines drove significant changes in the power systems of transportation vehicles. Internal combustion engines generate high-temperature and high-pressure gas by burning gasoline or diesel, which drives the piston to move and convert it into mechanical energy.