Technology
SIM-Drive, a
venture company specializing in electric vehicles, revealed the SIM-Wil II prototype
EV that succeeds the SIM-Wil I launched last year. The company successfully
increased the travel distance per change of the new model 30% to 351 km and
secured indoor space comparable to that of a full-size car. The new model
adopted a lithium-ion battery from Panasonic that has a capacity of 35 kWh, 30%
higher than the battery of the former model. The new model weighs 49 kg less
than the former model.
The new model has a
body size almost the same as a small car with an engine replacement of
1,300-1,500 cc, but it improved the ride quality considerably because the
indoor space is comparable to that of a luxury car. Because it employs the
in-wheel motor system that incorporates motors in wheels, it has fewer parts of
drive-train than the conventional vehicle. It can reach 100 km/h in 5.4
seconds. The company plans to mass produce the new model toward 2014. As this
case shows, technology of battery and lighter autobody is growing more
critical.
SIM-Wil II from SIM-Drive
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