On 1971 the Lunar Rover was driven on the Moon, it was used electrical vehicle, because there is no oxygen to burn gas. Vehicle was developed by Boeing and Delco Electronics. Rover was driven by DC motor in each wheel with non-rechargeable batteries.
It seems that there was no chance to bring back electric car. But price of oil extremely increased in 70s and 80s. Consumers wanted to have car with minimal fuel cost fluctuation. Car companies again started to think about electric car motor and created prototypes. And in 1990 General Motor presented the GM Impact electric car concept and promised to sale electric cars widely.
The government agencies like U.S. Environmental Protection Agency impressed by impact electric car concept obliged car makers to reduce car emission and start to produce zero-emission cars like electrical vehicle. But unfortunately car companies made self-sabotages and tried press on agency using lobbyists and lawsuits, because producing of electric cars was not profitable comparing with gasoline analogues. U.S. Environmental Agency had to cancel car makers’ obligations.
Big car companies went out from electric car industry. Therefore new small companies were designing and producing electric car. The good example is Indian REVA electric car company, which sells its car mostly on Europe market.
Americans more like sport utility vehicles which are affordable only with low gas prices and car companies interested produce big cars, because they brings more money. But 2000s energy crisis again renewed interest in hybrid and electric car motors. Sport utility vehicle is not in favor today. Chevrolet Volt is hybrid car with ability to work on electricity and charge the batteries from gasoline engine was announced of the 2010 release. Also Nissan announced in 2009 Nissan Leaf midsize electric car, which can be available for sale in 2010.
Showing posts with label electric auto. Show all posts
Showing posts with label electric auto. Show all posts
Thursday, November 25, 2010
Wednesday, November 24, 2010
Electric Car – Informed Decisions
An electric car uses an electric motor for propulsion and is the best known alternative to expensive gasoline driven vehicles. The electric car motor makes use of electrical energy to produce mechanical energy, or in other words movement. Electric motors make use of the electrical energy to rotate and anything attached to the motor automatically harnesses that rotating movement. Electric motors are not only limited to cars, you can find the smallest ones in watches and the largest ones are used to propel ships.
The electric car motor involves rotating coils of wire driven by a magnetic force that is exerted by a magnetic field on electric current. This is how electrical energy is transformed into mechanical energy.
The principle behind alternating current or the AC motor is that every single second it is changing direction of the flow several times. For this reason the current that runs through the electromagnet is AC, with the north and south poles on the electromagnet alternating as well. This keeps the electromagnet spinning.
The DC electric car motor is actually a very good one and the Advanced Series is a best seller. However you will need to consider the following carefully before you opt for a DC motor for your car. Will you need to carry heavy loads and go up hill frequently? If the answer to both is yes, then you will be better off choosing an electric AC motor.
If on the other hand these are not really important concerns, then a DC motor will be a good choice. They provide very good torque right from the start and give the driver a good smooth ride.
Remember that with the electric car motor you definitely get what you pay for, so research well and seek the advice of a professional before you make a final decision. Electric motors are not cheap and you cannot just go out and buy another if you make a mistake, it will prove to be a very costly mistake!
The electric car motor involves rotating coils of wire driven by a magnetic force that is exerted by a magnetic field on electric current. This is how electrical energy is transformed into mechanical energy.
The principle behind alternating current or the AC motor is that every single second it is changing direction of the flow several times. For this reason the current that runs through the electromagnet is AC, with the north and south poles on the electromagnet alternating as well. This keeps the electromagnet spinning.
The DC electric car motor is actually a very good one and the Advanced Series is a best seller. However you will need to consider the following carefully before you opt for a DC motor for your car. Will you need to carry heavy loads and go up hill frequently? If the answer to both is yes, then you will be better off choosing an electric AC motor.
If on the other hand these are not really important concerns, then a DC motor will be a good choice. They provide very good torque right from the start and give the driver a good smooth ride.
Remember that with the electric car motor you definitely get what you pay for, so research well and seek the advice of a professional before you make a final decision. Electric motors are not cheap and you cannot just go out and buy another if you make a mistake, it will prove to be a very costly mistake!
Electric Car Parts
Have you had enough of exorbitant gasoline bills? Is a good part of your monthly paycheck going towards fuel costs? Would you like to change to an electric car that will give you virtually zero gas bills and contribute to a cleaner environment? If the answers are yes all the way, read on to find out all you need to know about the electric car parts you are going to need to convert your normal car to an electric one.
You should always buy your electric car parts from a reputable dealer; never go for used parts, they do not come with any sort of guarantee. Make sure your dealer is licensed and will give you a guarantee on the parts you buy. Also make sure there is a good return policy in place, should you wish to return a part for whatever reason.
In order to get an electric car you can either convert your existing car or buy a new, ready made electric car. In either case you need to know something about the electric car parts to make an informed decision about your purchase.
• Your battery charger is one of the most important items; you will need to charge your car everyday and poor quality battery chargers can make life very difficult for you.
• The car battery pack has to be the best; your options include the common and affordable lead acid flooded type batteries; Absorption Glass Mat (AGM), which are maintenance free, more powerful and of course a bit more expensive; the Ni-MH is a maintenance free, very expensive battery but very long lasting than any of the others.
• The motor is the next important car part; this is the determining factor for the vehicle’s performance. The motor you buy should be technically sound, excellent quality and capable of high performance output.Apart from these main electric car parts there are several others and it would be a good idea to take a professional with you when you plan to convert or buy.
Electric Car Parts – Everything You Need To Know
The electric carriage requires three electric car parts to drive: a motor at powered an automobile, batteries that storage energy, motor’s controller that brings and control electricity from batteries to engine. The driver manages speed of car using accelerator connected with motor’s controller through potentiometer (resistor with variable resistance). Controller brings required level of power depending on what position driver sticks pedal of accelerator.
Controller uses pulsing principle to regulate the power on the engine. It means that when driver pushes accelerator pedal controller gets level of voltage on potentiometer. Depending on this level controller cuts the power from accumulator batteries and brings these portions to the engine. Let’s assume that driver pushes pedal on 30%.
Controller reads this level from potentiometer and cut power with equal portions (impulses) for example 20 thousand times per second. So 6 thousand impulses have maximum voltage level, 14 thousand have zero level. After second controller again reads voltage level from potentiometer and calculates the number of impulses.
The number of impulses per second is important criteria for controller because impulse frequency causes the same engine vibration frequency. As human hearing frequency threshold is 15 thousand per second. So when impulse frequency is more than 15 thousand per second it keeps silent engine work for human.
DC controller works using principle described above. AC controller is much more complicated.
Because it produces three phase alternating current from batteries’ direct current. So it uses impulse principle for pulse the current and also it reverses polarity of the voltage 60 times per second using set of transistors.
As you see AC motors and controllers are more complicated for installation during electric vehicle conversion than DC motor, but they produce more power comparing with the same weight as DC engines.
Controller uses pulsing principle to regulate the power on the engine. It means that when driver pushes accelerator pedal controller gets level of voltage on potentiometer. Depending on this level controller cuts the power from accumulator batteries and brings these portions to the engine. Let’s assume that driver pushes pedal on 30%.
Controller reads this level from potentiometer and cut power with equal portions (impulses) for example 20 thousand times per second. So 6 thousand impulses have maximum voltage level, 14 thousand have zero level. After second controller again reads voltage level from potentiometer and calculates the number of impulses.
The number of impulses per second is important criteria for controller because impulse frequency causes the same engine vibration frequency. As human hearing frequency threshold is 15 thousand per second. So when impulse frequency is more than 15 thousand per second it keeps silent engine work for human.
DC controller works using principle described above. AC controller is much more complicated.
Because it produces three phase alternating current from batteries’ direct current. So it uses impulse principle for pulse the current and also it reverses polarity of the voltage 60 times per second using set of transistors.
As you see AC motors and controllers are more complicated for installation during electric vehicle conversion than DC motor, but they produce more power comparing with the same weight as DC engines.
Tuesday, November 23, 2010
Electric Car Motor – What To Look For
When it comes to buying an electric car motor you need to invest in a really good one; this is one of the most important parts of your electric car. When planning to convert your existing car to an electric one, do your homework well to find the best and most suitable electric motor for your car. What you will need to take into consideration apart from pricing is whether the motor will be suitable for your car, the load it has to bear and the ground it has to traverse. The motor you buy has to be a versatile one, that is powerful enough to give you high quality constant performance irrespective of driving conditions.
Another aspect of the motor that you will need to consider is whether to choose an AC or DC motor. Your choice will have a direct impact on the cost and performance. You can get some really affordable and fairly decent DC motors, but they falter when going uphill, cannot provide you with constant power and are just plain not suitable for carrying heavy loads. If none of these factors are of any concern to you then by all means go for a DC electric car motor. The Advanced DC Series wound motor is actually one of the best selling electric motors and provides excellent torque from the very outset.
The 3 phase induction AC motor is probably the most expensive and also the best. The ultimate decision is yours; you need to choose what you think will best suit your needs and your budget.
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