The world’s natural resources are diminishing at such a rate that demand for fossil fuels will soon far outweigh supply. This is nothing new; the motor industry has been working on alternatives to the combustion engine for years. Electric and hybrid cars could be the vehicles to reduce the impact of carbon emissions on the environment.
Electric cars, as the name suggests, are run solely on electrical power via a lithium-ion battery. With electric car technology, the engine requires no air filter or oil changes and the battery engine is said to last at least 120,000 miles before being replaced. The number of electric cars on the road has not only risen due to an increased production number but also the fact that conventional petrol cars are also being converted, which is an attractive bonus in terms of recycling vehicles.
Whilst electric cars run solely off your power supply, a hybrid car uses both electrical energy and petrol for power. Your hybrid car is filled at the petrol station just as your conventional car and looks similar on the outside, but look under the bonnet and the similarities end. The hybrid car is more efficient than a standard combustion engine in that it uses an electrical battery and combustion energy in tandem to increase fuel efficiency. In series hybrids, a standard fuel engine produces electricity to generate the electric motor and propel the car. In parallel hybrids, the car is set in motion by the engine or battery. The great advantage of the hybrid car in terms of energy efficiency (resulting in reduced emissions) is that when the engine loading is low, any excess energy is stored and when the energy output needs to be increased, both the lead engine and stored energy work together to power the car. In fact, when the car is idle in electric mode it actually turns off. In addition, to conserve energy, the intelligent design of the hybrid switches to electric power when travelling at low speeds and remarkably even the residual energy produced when braking is fed-back into the lithium battery as reserve energy to be used as and when required.
This article is free for republishing
Source: http://islacampbell.articlealley.com/electric-vs-hybrid-cars-a-short-guide-2254342.html