The problem of environmental pollution by road vehicles is very relevant today. It accounts for about 40% of all emissions. In large cities, this figure rises to 60-80%. The vehicles also use a lot of fluids necessary for operation of the power units, in particular lubricants, the disposal of which cause problems. Used oils are often burned, polluting the atmosphere, or simply poured directly on the ground, causing significant damage to soil cover.
The problem of the depletion of oil resources is also acute. At the current rate of consumption according to various forecasts, the oil will last for about 90-110 years.
Major automakers see the solution to these problems in the transition to alternative energy sources, and reducing the share of gasoline and diesel engines in the car through the use of electric motors in (hybrid power units).
The invention of hybrid cars was one of the steps of automakers and served for the implementation of two strategies – fuel economy and satisfaction of the growing demand for less polluting vehicles. Petrol cars create a problem of high fuel prices for customers, while electric vehicles require high initial investment for producers and consumers.
In this situation, automakers invented hybrid cars working on gasoline and electricity.
A few years ago, most people believed that eco-friendly electric cars will ultimately replace cars with internal combustion engines, and thus all of our problems with the emissions of exhaust gases and the risk of extinction of liquid fuels will be solved.
People imagined that they would receive power from the batteries that can be recharged whenever discharged. It was a simple point of view, which ignored one factor: the energy for recharging should be obtained from a particular power plant, and if it burns a solid fuel, the best of what can happen is that pollution is transferred from the place where vehicles ride to a place where there is power plant.
At the end of the 90s, a few of the major car manufacturers made some efforts to organize a car market of electric cars in California. Now it is clear that these efforts have failed, partly because of limited energy reserve of the battery electric vehicle, but mostly because the batteries themselves have been very expensive to manufacture and have too little resources.
It is likely that over the next half century, fuel cell vehicles will gradually become a standard type of car and the hybrid cars will help a smooth transition. The internal combustion engine will eventually become obsolete and old-fashioned, while a small amount of battery electric vehicles will move on routes, where charge stations will not be too far.
The problem of environmental pollution by road vehicles is very relevant today. It accounts for about 40% of all emissions. In large cities, this figure rises to 60-80%. The vehicles also use a lot of fluids necessary for operation of the power units, in particular lubricants, the disposal of which cause problems.