2013 Zero S First Ride — Motorcyclist magazine

9 Мар 2015 | Author: | Комментарии к записи 2013 Zero S First Ride — Motorcyclist magazine отключены

Moore’s Law Applied To E-Bikes…It

They say: “An revolution.”

We say: “Finally, an bike offering performance and

Top speed: 95 mph. Range: 137 Recharge time: one hour. If been following the development of motorcycles, these stats a strong impression.

Not only are tantalizingly close to those of gas-powered motorcycles, they’re a step up from existing They are, not coincidentally, the figures for one of Zero Motorcycles’ models—the range-topping Zero S.

To end, Askenazi and his team re-engineered the range by installing an Z-Force electric motor in-house by Canadian designer Biffard, and funded by a $900,000 secured from the California Commission. This compact, motor is an “inside-out” design the windings encircling permanent attached to the rotor. The windings, carry the electric current and get hot in can then be placed on the periphery they’re easier to cool—no or liquid-cooling circuits required.

There are two variants, the wider and powerful 75-7 motor (40 fitted to the S and DS bikes, and a slimmer, potent 75-5 version 10 lbs. lighter. There are two different Sevcon controllers in the Zero lineup, one rated for 250 and the other for 420. Combining the engine with the fatter in the S and DS models delivers a claimed 54 at 4300 rpm and peak torque of 68

This combination represents a 36 increase in power density the 2012 spec.

Still variations are in play: all 2013 can be had with one of two battery packs, up of Zero’s own lithium-ion, 102-volt batteries. For the S and DS, the packs are rated at a of 11.4 and 8.5 kilowatt-hours (kWh), an from 9 kWh and 6 kWh, respectively. to the company, these batteries are for 2500 recharge cycles, gives an effective battery lifetime of 308,000 miles for the version.

Zero S

If that proves to be true, the pack could outlive the of the bike, or even its owner.

To a degree, vehicle range and top are dependent upon battery (Top speed is more a of current capacity and motor but for a road bike with a battery pack it’s to limit power to improve In the Zero S, the 11.4 kWh pack 137-mile range from a charge based on the EPA’s Commuting urban cycle. The S with the smaller, 8.5 kWh pack can go 103 in the same test but is lighter—a 350 lbs.

30 lbs less than the 11.4 kWh Range is a moving target, you say: Claimed range to 85 miles (larger battery and 64 miles (the smaller in the EPA Highway Commuting suburban and to 70 and 53 miles in the Highway cycle.

All Zeros come with a 1.3 kW charger fed from a common AC outlet. Using only system, the larger pack to 95 percent in 7.4 hours, while the pack recovers in 5.5 hrs. By the optional CHAdeMO adapter—CHAdeMO is the system used on electric and supported by public charging time is dramatically shorter.

How about “zero” to 95 percent in than an hour?


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