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Hybrid Cars
Basically, hybrid electric cars have two engines: a conventional petrol or diesel engine (the same as you would find in any modern car and an electric, battery powered engine, as you may find in a milk float or a forklift truck. The magical difference is that the car's on board computer judges which engine is necessary to supply the power required by the driver and turns it on.

Consequently, if you are accelerating to cruising speed for motorway driving; going up hill or overtaking, the car will almost certainly use its liquid fuel engine but then as you ease off the accelerator to, say,

cruise down the motorway; go down the other side of the hill or to drive in slow traffic, the computer will turn off the liquid fuel engine and turn on the electric engine.

The electric engine can be regarded as free to run, because it runs off batteries which are recharged by the car whilst it is using petrol or diesel and at some other times, such as whilst it is braking (and the alternators are recharging in both modes). You should never need to recharge your car's batteries overnight as they do with forklift trucks.

There are basically two types of hybrid cars: the semi hybrids and the full hybrids.

The semi hybrids have the same type of set up: two engines, one running on liquid fuel and the other running on batteries, but the electric motor is not capable of running the car on its own. It is there to 'assist' the petrol or diesel engine.

In this sort of hybrid, the electric motor is known as an 'assist'. These semi hybrids will save money on fuel, but while the car is moving, you are burning fuel all the time.

This switching of power sources is done robotically without any intrusion from the driver. In the case of the Prius, for example, this remarkable achievement is accomplished by what Ford calls its Hybrid Synergy Drive. Other companies have their equivalent to the HSD.

In order to get the most out of these full hybrids, you really need to be doing an 'average amount' of driving under 'average' or 'mixed' circumstances. For example, if you are driving in traffic, the car will want to use the electric engine, but if all you do is drive in inner city traffic jams the batteries will soon become depleted and you will be driving on liquid fuel all the time, which sort of negates the main reason for spending a lot extra on a hybrid in the first place.

The car has to travel on open motorways in order to recharge its batteries so that it can use them once it gets back into town. If you just drive in town traffic, you may be better off buying a small run about instead.

Owen Jones, the author of this article, writes on several topics, but is now concerned with how to compare tyre prices. If you would like to know more, please visit our web site at Car Tyres For Sale.
Article Source:
How Do Hybrid Cars Work?
By Owen Jones
The main difference when it comes to the full hybrid is that both engines are capable of powering the car independently. While you are running on electricity, you are running at zero expense to your wallet and at zero cost to the environment, unless you are really gunning the car and then both engines may start working in union.