This entry was posted on Saturday, October 31st, 2009 at 6:28 am and is filed under electric vehicles. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
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October 31, 2009
How do these new electric vehicles work?
What materials are used to produce power for these vehicles?
You charge the batteries from household AC power via a battery charger. Batteries get charged up and this is your power source to operate the motor.
Motors can be either DC or AC. AC motors require inverters to convert DC into AC and can use variable frequency drives to operate the AC motor at different speeds. AC is a much more expensive system but has advantages like ease of implimenting regenerative braking. DC motors can use PWM speed controls to control motor speed. DC regenerative braking usually requires switching gear.
Accessories that we are accustomed to in regular internal combustion engine cars can be difficult to provide. Power Steering, Power brakes and air conditioning are some examples. Power brakes would require an small electric motor vacuum pump and receiver as a vacuum source. Power steering and AC could also be driven off of accessory motor but can also be powered via a power take off from the main motor. Down side to this method is loss of these accessories when the motor is running at low speed or stopped.
read comments (3)
October 31st, 2009 at 11:34 am
You charge the batteries from household AC power via a battery charger. Batteries get charged up and this is your power source to operate the motor.
Motors can be either DC or AC. AC motors require inverters to convert DC into AC and can use variable frequency drives to operate the AC motor at different speeds. AC is a much more expensive system but has advantages like ease of implimenting regenerative braking. DC motors can use PWM speed controls to control motor speed. DC regenerative braking usually requires switching gear.
Accessories that we are accustomed to in regular internal combustion engine cars can be difficult to provide. Power Steering, Power brakes and air conditioning are some examples. Power brakes would require an small electric motor vacuum pump and receiver as a vacuum source. Power steering and AC could also be driven off of accessory motor but can also be powered via a power take off from the main motor. Down side to this method is loss of these accessories when the motor is running at low speed or stopped.
References :
http://www.myersmotors.com/
http://www.zapworld.com/
http://www.evadc.org/build_an_ev.html
http://www.electricvehiclesusa.com/
April 6th, 2010 at 7:46 am
It is simple to see that you are passionate about your writing. Great job!
May 3rd, 2010 at 8:22 pm
thanks !! very helpful post!