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DrQuine
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
DrQuine   4/8/2011 10:06:54 PM
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The SIM-LEI is reporting very impressive range statistics - how do the costs and recharge times compare with the electric only performance of the newly introduced Volt and Leaf in the US? Do the motors in the wheels cause unusual handling characteristics as that mass is moving up and down on bumpy roads with the wheels rather than floating on top of the suspension? How close is this technology to becoming available for consumer use? In terms of the visual appearance, many people buy EV / hybrid cars for the "badge" so a radical design may actually be a selling point (as it was when the Prius' design seemed so unconventional).

rick merritt
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
rick merritt   4/6/2011 8:12:13 PM
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Who designed the battery and what type is it?

subman
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
subman   4/6/2011 6:00:04 PM
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I'm sure they had to sacrifice on the design to maintain low aerodynamic resistance. The low-to-the-ground look, for example, helps quite a bit with drag coefficient but makes going over a small bump or up a driveway a challenge.

george.leopold
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
george.leopold   4/6/2011 2:03:04 PM
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You are correct, the battery capacity figure should be 24.9 KWh. We have corrected. Apologies for the editing error.

prabhakar_deosthali
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
prabhakar_deosthali   4/6/2011 7:13:51 AM
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The battery capacity is written as 24.9Wh. Isn't it too low? Is it in KWh? Also, is there in-wheel motor in each of the four wheels or only the rear wheels? Would be interesting to study the complete technical specs of this car. Pl provide the link .

GREATTerry
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
GREATTerry   4/6/2011 5:42:36 AM
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Agree! SIM should pay more effort on industrial design. Anyway, there is no any data showing how the in-wheel motor can improve the millage.

eewiz
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re: Japan’s SIM-Drive claims over 200-mile range for new EV
eewiz   4/6/2011 4:45:42 AM
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All I can say is that the design looks real ugly. Hope they change the design before going for mass production.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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