Electrical powered bike, nowdays getting more and more popular. It's not only caused by global warming issue, but also it's caused by the change of peoples sense of technology. Peoples now see that technology is not just a machine, or a device, but more than that. Today technology is a life style, that affecting peoples lives.
So, many engineers now, compete in not only about how strong is their machine, or how powerful, but also how safe and how environment friendly, even how beautiful is. Then, electrical bike is one of their innovation. Its a simple, friendly,comfortable,and safe transportation device.
On this post, i want to share to all of you, about this kind of bike.I found some articles about it on gizmag.com, and I think its really interesting to be shared. Enjoy..
- Ford E-Bike Concept
Ford's concept piece is not the first time we've seen Formula One technology transferred to an electric bike, but where M55's Terminus production e-bikes concentrated on giving its models F1 stopping power, Ford's Design team led by Martin Smith - in partnership with cyber-Wear - equipped the E-Bike with patented magnetostriction sensor technology.
"Magnetostrictive materials are used to convert magnetic energy into kinetic energy, and vice versa," says Ford. "In Formula One, these sensors help handle high engine revolutions in combination with intense thermal strains. They need no physical contact with other parts of the engine, are temperature-independent and are completely maintenance-free."
The sensors used in the E-Bike monitor the revolutions of the inner bearing and send on the information to a control unit within a hundredth of a second. The control unit uses this data to decide in an instant when best to activate or deactivate the electric motor housed in the bike's front wheel hub to provide power assist to the rider. A handlebar-mounted readout display allows the rider to select from three support modes - Economy, Comfort and Sport - as well as providing trip information.
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| Electrical Bike, more images CLICK HERE |
The onboard 340Wh/36V/9.3Ah lithium-ion battery with integrated controller is said to offer up to 85 km (52.8 miles) range between charges, depending on drive power and support mode selected, and reaches 80 percent capacity after 2 hours connected to the mains and full charge after 3-4 hours. The charging unit is small enough to remain on the bike and is designed to prevent overcharging, undervolting, overheating and shortcircuit.
Ford says that the unisex frame is made from aluminum and carbon and weighs just 2.5 kg (5.51 pounds), there's V-design Mavic Elipse aluminum 6-spoke wheels with Continental Ultra Sport tires, custom-made handlebars, a Giant SLR Carbon stem, Avid Elixir 5, full hydraulic brakes and a Selle Italia SLR XC saddle. Completing the bicycle part of the specs are Shimano Alfine 11-speed internal gear hub, 2012 Shimano Rapidfire shifter, Wellgo LU-C27G pedals and a Carbon Belt Drive System to replace the oily chain.
At least with this e-bike there are no nasty pricing shocks, as the Ford E-Bike is not going to be made commercially available - it was created as a demonstration of the technologies involved.
The remainder of the technical specifications are shown below:
Drive Unit:
- Front wheel hub motor
- Max. nominal power: 350W
- Electricity: 36V - 250W
- Supports up to 25 kph/15.5 mph (to EN 15194)
- Clutch with freewheel function
- Gearbox: Planet gears
- Integral sensor technology
- Background lighting with light sensor system
- Energy-saving automatic sleep mode
- Diagnosis function with fault code display
- Support modes: Economy, Comfort, Sport
- Displays: Range, Battery capacity, Speed, Time, Distance, Maximum speed, Average speed, Total distance, Service reminder, System diagnosis, Support modes
- iPhone Smartphone app control function planned
2. Radical Electrical Bike
Yuji Fujimura has taken the bicycle design manual and thrown it to the wind with his concept Electric Bike Version 2. Ditching the popular and familiar diamond frame design, Fujimura has opted for a flat solid box on wheels where the handlebars, seat and pedals fold away flat to help squeeze the bike into tiny parking spaces.
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| Flat Electrical Bike, more images CLICK HERE |
Parking bicycles can be a troublesome affair if you're in an area where an awful lot of people use two wheels to get around. As electric bikes grow in popularity the issue is unlikely to improve. The Electric Bike Version 2 concept from Yuji Fujimura takes a slightly different approach to bike design which also offers a possible solution to overcrowded parking woes.
The concept bike would have pedals for human propulsion, which could both be set at the lowest position when traveling under electric assist. The upright seating position appears similar to that of more familiar diamond frame bicycles but that's where the similarity ends. As you can see from the gallery examples, Fujimura has gone for a flat, solid body box design with all the electronics and lighting enclosed within the housing and solid wheels.
Being a concept design, details on the electrics are limited to revealing that the designer proposes using a Li-ion battery, an electric rear wheel hub motor and that the bike would include a charging compartment for mobile phones, laptops, MP3 players and so on. The handlebars, seat and footrests/pedals fold away flat so that the flat, wheeled box can slide into the slimmest of parking spaces.
Whilst the Electric Bike Version 2 concept is imaginative and aspects of it make a lot of sense, just how stable the bike would prove in strong winds with nowhere for gusts to go except to slam against the solid body is cause for great concern, especially when cornering. Fold-away handlebars, seat and pedals to help squeeze the two-wheeler into tight parking spaces though - now there's a good idea.
Toronto-based Daymak Inc. has dubbed its Shadow Ebike "the world's first wireless power-assist electric bicycle." Through the integration of ISM 2.4 GHz wireless using frequency-hopping spread spectrum technology to prevent interference, the Shadow has no brake or gear cables, and no visible electric wires running from the motor to the batteries, the controller or throttle. Turning the electric motor on or off, the magnetic regenerative brakes, the throttle and the pedal assist are all controlled wirelessly via the Daymak Drive controller.
What wiring and electronics there is, including the motor, lithium polymer battery and wireless Daymak Drive controller, is all packed inside the bike's front wheel, which is accommodated in a custom designed fork and frame. The wheel also includes a USB port, charging port and an LED battery power display. When the brakes are applied from the wireless throttle, the regenerative braking system kicks in to send current back to the batteries and the wheel can also be used as a generator to recharge devices via the USB port.
Daymak offers the Shadow Ebike with a 250W or 350W electric motor, and a 36V 10AH lithium-ion battery, which provides an average range of around 20 to 25 km (12 to 15 miles) running on just motor power, or around 35 to 40 km (22 to 25 miles) with pedal-assist. The included battery takes around 4-5 hours to completely recharge and is good for 750 to 800 cycles.
While the concept of a wireless bike throws up the possibility of interference from other wireless devices or even someone hacking into the bike's controls and slamming on the brakes to send you flying over the handlebars, Daymak says that each Shadow Ebike wireless component is paired and the odds of being affected by other means is less than one in a billion.
3. First Wireless Electricity Electrical Bike
Toronto-based Daymak Inc. has dubbed its Shadow Ebike "the world's first wireless power-assist electric bicycle." Through the integration of ISM 2.4 GHz wireless using frequency-hopping spread spectrum technology to prevent interference, the Shadow has no brake or gear cables, and no visible electric wires running from the motor to the batteries, the controller or throttle. Turning the electric motor on or off, the magnetic regenerative brakes, the throttle and the pedal assist are all controlled wirelessly via the Daymak Drive controller.
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| Shadow Bike, First Wireless Bike. More Images CLICK HERE |
What wiring and electronics there is, including the motor, lithium polymer battery and wireless Daymak Drive controller, is all packed inside the bike's front wheel, which is accommodated in a custom designed fork and frame. The wheel also includes a USB port, charging port and an LED battery power display. When the brakes are applied from the wireless throttle, the regenerative braking system kicks in to send current back to the batteries and the wheel can also be used as a generator to recharge devices via the USB port.
Daymak offers the Shadow Ebike with a 250W or 350W electric motor, and a 36V 10AH lithium-ion battery, which provides an average range of around 20 to 25 km (12 to 15 miles) running on just motor power, or around 35 to 40 km (22 to 25 miles) with pedal-assist. The included battery takes around 4-5 hours to completely recharge and is good for 750 to 800 cycles.
While the concept of a wireless bike throws up the possibility of interference from other wireless devices or even someone hacking into the bike's controls and slamming on the brakes to send you flying over the handlebars, Daymak says that each Shadow Ebike wireless component is paired and the odds of being affected by other means is less than one in a billion.
Daymak says the use of wireless technology also means the Shadow is setup for future upgrades to interact with smartphones and even PCs – possibly to give it similar remote monitoring capabilities to the PiCycle, an electric bike that could also lay claim to the title of "world's first wireless electric bicycle" with its use of Wi-Fi-based technology.
Daymak is currently taking orders of the Shadow Ebike ahead of an April 30, 2011 delivery date. It is priced at US$1,999.
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Do you wanna get one of that? Just buy it.. LOL :D. If you can't just create one MLOL :D . As an engineer student, actually I really want to try to make one, but maybe this time is not a good time. My ability still imature. #wtf :D
I hope this article give you a little piece of inspiration. :D
I hope this article give you a little piece of inspiration. :D
tag : bicycle, bike, electrical bike, wireless electrical, first, technology
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