- CT&T United today unveiled a
trio of new electric vehicles, including an electric sports car, an amphibious
vehicle and a small city-type car.
Of the three, the sports car represented the greatest
departure for CT&T, which bills itself as the "world's largest manufacturer
of electric vehicles." Up until now, most of the company's cars have been
neighborhood vehicles with top speeds of about 40 mph, but the new C2
sports car reportedly has a top speed of 93 mph and a driving range of about
The other two vehicles, both of which were also introduced
at the North American International Auto Show
today, included the Multi-Amphibious Vehicle, which can travel on land and
water, and the Cit EV e-Zone, which has a top speed of about 45 mph and a
From a technological perspective, CT&T's new C2
differs from other EVs at today's show in its use of a lithium polymer battery.
CT&T said it teamed with two corporate partners - LG Chem and SK
Energy - to create the new lithium polymer battery.
Engineers from SK Energy said the lithium polymer technology
made sense for the new sports car because it reportedly offers greater safety
and lower cost than lithium-ion battery technologies. Lithium polymer batteries
employ a solid electrolyte, instead of the liquid electrolyte used in most
other vehicle batteries. As a result, the company said, the electrolyte doesn't
flow and therefore doesn't leak if it's affected by impact, cracking or thermal
The C2 draws its power from five lithium polymer
modules with a mass of 21 kg. The five modules therefore comprise a 10-kW-hour battery
pack of 105 kg (225 lb) mass. SK Energy engineers said the lithium polymer
battery pack offers an energy density of approximately 93 W-hrs/kg, which is
slightly less than that of lithium-ion batteries.
SK Energy engineers said the modular design of the battery
pack enables CT&T to minimize its costs. "If we can produce just one type
of cell, it saves significantly on cost," noted Byoung Jo, a senior manager of
marketing for SK Energy. "Likewise, if we make one type of battery pack to
satisfy all customers, it reduces costs even more."
CT&T did not reveal when any of the three vehicles is
scheduled to reach production.
What makes this movie stand out from the typical high school sports story is that the teenagers are undocumented immigrants, and the big game is a NASA-sponsored marine robotics competition. Like many other Hollywood movies, however, Spare Parts only tells part of the story. What the film shows -- and doesn’t show -- raises important issues affecting STEM education in the US.
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Load dump occurs when a discharged battery is disconnected while the alternator is generating current and other loads remain on the alternator circuit. If left alone, the electrical spikes and transients will be transmitted along the power line, leading to malfunctions in individual electronics/sensors or permanent damage to the vehicle’s electronic system. Bottom line: An uncontrolled load dump threatens the overall safety and reliability of the vehicle.
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