Electric Car Motors


Author: ElAutomobiles.co.uk


Part of the electrical car conversion involves the replacement of gasoline engine by electric car motors. The knowledge on the mechanical and the electrical system of an electric vehicle is essential especially for those who wish to do the electrical car conversion at home. Having these technical perceptions will help you decide wisely when an inevitable emergency situation arises. Otherwise, you can ask someone that has car maintenance skill to assist you. Or make it repaired in the auto shop wherein you can spend a lot.

Electric car motors can either use DC or AC type. If the electric car motors are AC, they are definitely a three-phase AC motor and running at 240 volts AC with a battery pack of 300 volts. On the other hand, the electric car motors are DC if it runs from the range of 96 to 240 volts and is commonly from the electric forklift industries.

DC electric car motors installations are simpler and are less costly. Typical electric car motors are in the range of 20,000 watt to 30,000 watts. On the other hand, a typical controller is in the range of 40,000 watts to 60,000 watts. DC electric car motors have this nice feature that you can naturally overdrive them for shorter periods of time. Meaning, a 20,000 watt motor have the chance to accept 100,000 watts for a short span of time and will generate 5 times its normal rated horsepower. This feature is excellent for short intense bursts of acceleration. Heat built up in the motor is the only limitation. Cautions of too much overdriving must be observed because the electric car motors heat up to the extent of its self destruction.

AC installations permit the use of nearly any industrial three-phase AC electric car motors that can cater in finding a motor with its specific shape, size or power rating in an easier way. These AC motors and controllers commonly have a regen feature. As during braking, the motor converts into a generator and gives power back to the batteries.

With the increase in fuel prices last year 2008, there emerged battery power buses that are more economical than any gasoline or diesel powered buses. There may be additional cost for the batteries but it is just made up for low operating cost in the life of the bus.

Examples of these electric car motors that have been in operation is the Chattanooga, Tennessee which operates nine free electric buses and have carried an estimated total of 11.3 million since the start of its operation and had travelled a total distance of 1.9 million miles. They were produced locally by Advanced Vehicle Systems. During the Atlanta Olympics in 1996, two of these buses have been utilized.

In the start of summer 2000 in Hong Kong airport, electric shuttle bus have been operating, itís a 16-passenger Mitsubishi Rosa and in the fall of 2000, a 66 passenger battery powered school bus was tested in New York City, this bus being the electric version of the Blue-Bird TC2000. In Napa Valley, California, a similar bus was also operated but it ended after 14 months.

Last years, 2008 Beijing Olympics had used a fleet of 50 electric motor buses with a range of 130 km and has the air conditioning on it. Batteries used were Lithium-ion and consumed a total of 1kWh/mile. Beijing Institute of Technology was the designer of the bus and the body was built by Jinghua Coach Co. To allow the 24 hour operation of the bus, old batteries are being replaced by the fully charged ones on the recharging station.

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