The controller s job in a dc electric car is easy to understand. The very simplest dc controller would be a big on off switch wired to the accelerator pedal.
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Higher voltage means more reasonable diameters of cable at high amperage so it s good for very high performance vehicles.
Electric car voltage. Wh per mile pack voltage ah per mile so in our car 259 144 1 8ah per mile so you would need ah per mile x miles per charge needed x 1 2 so you still had 20 charge left after the drive in our car 1 8 x 44 79 2 x 1 2 95 ah batteries at 144 volts needed to go the 44 miles. In the united states as of 2020 the total cost of ownership of recent evs is cheaper than that of equivalent ice cars due to lower. You may look at technical specifications on electric cars and wonder to what all these electrical terms like voltage are referring.
The vast majority of production electric cars use something in the 400v range. Modern electric vehicles will typically use a higher voltage and lower current. From the diagram above a dc 400 v 125 amps fast charger can deliver max 50 kw.
A very few use something in the 750v 800v range. Current battery systems for electric cars typically use voltage levels between 200 and 800 v. An electric car is a car which is propelled by one or more electric motors using energy stored in rechargeable batteries compared to internal combustion engine ice vehicles electric cars are quieter have no exhaust emissions and lower emissions overall.
Besides volts amperage is also an important factor in the specification of a tesla or other ev. The other is the magna charge inductive charging system popularized by the gm saturn ev 1 vehicle. One system accepts 120 volt or 240 volt power from a normal electrical outlet.
Jon mauney s electric car actually has two different charging systems. Click here to add your own comments. The prius for example has a drive voltage of 273 volts.
Let s look at each of these systems separately. To get an electric car moving at a sustained say 60 mph you need the same amount of power regardless of what voltage you re using. The controller takes in 144 volts dc and delivers it to the motor in a controlled way.
That amount is around 24000 watts. Let s assume that the battery pack contains 12 12 volt batteries wired in series to create 144 volts. Modern electric cars are using battery packs in the hundreds of volts anywhere from 200 to 800 volts in fact.
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