You're probably right, Battar, but I like to have a more optimistic view and hope that by making these type of cars before there is demand for them, somehow the demand eventually will be created. I hope these cars will be so good that those people who still have 200k+ gas guzzling cars will eventually give them up and go EV or hybrid.
You have a good point j-allen. The main problem with gas engines is that they drain a lot of fuel in the city limits when the traffic is at its peak. Electric cars can help in this regard with their limited performance capabilities since nobody will be needing a superfast electric car when they're stuck in traffic and moving at a snail's pace.
Charles, a series-wound DC brush type motor would be a very good motor for a dragster because the torque is greatest at zero speed. The challenge there is that the current draw is greatest also. The other challenge is the range of speeds available with a given motor design. The big problem is that as the speed increases the back EMF also rises, which reduces the current, and thus the power. So to keep accellerating the supply voltage needs to keep increasing. Thus the need for gear shifting, unless the car finishes the quatrter mile befor the motor torque starts to fall off.
The motor type is described as "AC Synchronous", which is a type of motor that has a definite best operation spread of speeds. The DC series type of motor is quite different in it's speed-torque curve. So for most efficient operation different gear ratios will be quite beneficial. Study the curves and you will understand why that is.
Not sure I understand the need for a gearbox in an electric car, unless you need to "feel" like a combustion engine car... Or is it because they are using very small motors that could not sustain both high accelerations and top speeds ?
Last year at Hannover Fair, lots of people were talking about Industry 4.0. This is a concept that seems to have a different name in every region. I’ve been referring to it as the Industrial Internet of Things (IIoT), not to be confused with the plain old Internet of Things (IoT). Others refer to it as the Connected Industry, the smart factory concept, M2M, data extraction, and so on.
Some of the biggest self-assembled building blocks and structures made from engineered DNA have been developed by researchers at Harvard's Wyss Institute. The largest, a hexagonal prism, is one-tenth the size of an average bacterium.
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