livewire – DesignApplause

2016 victory empulse tt all-electric motorcycle street-ready.

Aug 24, 2015

Kudos for getting this bike street-ready so quickly. Victory Motorcycles unveils their first all-electric motorcycle, the 2016 Empulse TT. A few previously announced all-electric notables, i.e., Harley-Davidson LiveWire and Mission Motors are still concept prototypes. This bike is really a slightly modified Brammo Empulse – Victory bought the Brammo motorcycle business in January 2015 and very little has changed in the Victory model except for a notable modification of reducing the Brammo 180-section rear tire to a 160 rear tire – a size seen on the race circuit. A lithium-ion battery pack gets a 10% boost in capacity (now rated nominally at 10.4 kilowatt hours), a new seat material and a rubber damper drive setup in the sprocket to ease abrupt throttle transitions.

Powering the machine is a permanent magnet ac (PMAC) motor. PMAC motors are suitable for variable or constant-torque applications, and this flexibility also makes PMACs suitable for variable-speed operation requiring ultra-high motor efficiency. But this efficiency does not necessarily help the driving range. This is really a city bike with a 60-mile range. A controversial feature is a six-speed transmission. This is the only electric that has a transmission, all others use clutchless direct drives. The gears put a 10-15% drain on efficiency.

Waiting to see if second generation TT will have improved styling, a belt-drive to mirror the almost silent motor and will it still sport the 6-speed gearbox. But hey, looking good in this video…

[ specs ]
maximum power> 54 hp (claimed)
maximum torque> 65 lb-ft. (claimed)
max speed> 100+ mph (claimed)
drivetrain> 6-speed transmission
battery> brammo power lithium-ion
battery capacity> 10.4 kw-hr
charge time> 2 hrs (level i: 20-80%) / 3.5 hrs (level ii: 0-100%) / 8 hrs (level i: 0-100%)
front suspension> adjustable 43mm inverted fork
rear suspension> adjustable direct-acting shock
front brakes> dual 310mm floating discs with four-piston radial-mount calipers from brembo
rear brakes> single disc with dual-piston hydraulic brembo caliper
wheel rims> 17″ lightweight cast aluminum
dry weight> 460 lb

price> $19,999 usd. goes on sale late 2015 [ victory motorcycles ]

harley-davidson electric motorcycle: livewire.

Jun 20, 2014

A new Harley-Davidson electric motorcycle was unveiled Tuesday at an exclusive preview on a closed runway at the former Marine Corps Air Station in Irvine. The name is LiveWire.

LiveWire weighs 460 pounds and is capable of zero to 60 in under four seconds. Harley isn’t saying much about the drivetrain beyond saying the bike uses a lithium-ion battery with a range of 53 miles. It charges in 3.5 hours at 220 volts.

“As a company, we have always been about strength and freedom and power,” Matthew Levatich, Harley-Davidson’s president and chief operating officer, said on the former El Toro airstrip. “So it’s really a question of ‘why not?’ instead of ‘why?’ This isn’t some sort of ploy for us. This is real.”

It’s a pretty big bet by the 110-year-old company who’s built a reputation on power and rebel attitude because this bike is not loud, but quiet. It doesn’t sound like the prototypical Harley—or a “fighter jet landing on an aircraft carrier” as Harley puts it. But the whirring noise of Harley’s electric is in special jarring contrast to the well-known sound of its engines — They won a well-publicized legal action protecting the “potato potato” sound of its Vtwin engine as a design feature and brand element.

Electric technology in the motorcycle world has not kept up with automobiles for several reasons. Motorcycle manufacturers are not required by federal agencies, as carmakers are, to produce a certain number of electric vehicles or to maintain an increasingly low average miles per gallon rate. Also, a motorcycle frame cannot accommodate massive battery packs as easily as a car chassis.

There are well-regarded electric bikes on the road now. Ashland, Oregon-based Brammo has leading-edge electrics, but it’s not gaining market share.

Electric motorcycle industry leader, Santa Cruz-based Zero Motorcycles, produces and sells only a few thousand units a year of its S and SR street bikes.

San Francisco’s Mission Motor Co. bikes can go zero to 60 in three seconds with a top speed of 140 mph-plus. They’re pricey starting at $32K.

An electric motorcycle made by Lightning set a new record at last year’s Pikes Peak mountain race, beating records set by gas-powered superbikes.

BMW is the only major that has an electric two-wheeler in production, a scooter called C Evolution, but not yet available in the U.S.

The big four Japanese bike makers, Honda, Kawasaki, Yamaha and Suzuki — are believed to be deep into research and development. Electricity might be something every motorcycle manufacturer will have to investigate –just like every automobile manufacturer.

What’s a little interesting is how the company plans to expose LiveWire and see if it will be accepted. They’ve made a number of prototypes to be released around the world starting with New York City Monday, 23 June.

[ harley-davidson ]

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