|
Johammer J1
The Johammer J1 is an Electric motorcycles and scooters, electrical motorcycle manufactured by Johammer e-mobility of Bad Leonfelden, Austria, which was introduced in 2014. Specification The bike is driven by a synchronous motor with an output of 11 kW. The empty weight is 178 kg, and top speed is 120 km/h. The range of the batteries, with a capacity of 12.7 kWh, is specified to be between 150 and 200 km. In regenerative operation - for example when driving downhill or during regenerative braking - the synchronous machine energy is recycled into the battery system. The charging time for 80 per cent is 2.5 hours. The motorcycle has a wheelbase of 1,455 mm. It has a unique two-arm steering wheel hub and is reminiscent of the layout of thMajestic References Electric motorcycles {{motorcycle-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Motorcycles And Scooters
Electric motorcycles and scooters are plug-in electric vehicles with two or three wheels. Power is supplied by a rechargeable battery which drives one or more electric motors. Electric scooters are distinguished from motorcycles by having a step-through frame, instead of being straddled. Electric bicycles are similar vehicles, distinguished by retaining the ability to be propelled by the rider pedalling in addition to battery propulsion. Electric scooters with the rider standing are known as e-scooters. History 1895 to 1950 The early history of electric motorcycles is somewhat unclear. On 19 September 1895, a patent application for an "electrical bicycle" was filed by Ogden Bolton Jr. of Canton Ohio. On 8 November of the same year, another patent application for an "electric bicycle" was filed by Hosea W. Libbey of Boston. At the Stanley Cycle Show in 1896 in London, England, bicycle manufacturer Humber exhibited an electric tandem bicycle. Powered by a bank of storage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bad Leonfelden
Bad Leonfelden is a municipality in the district of Urfahr-Umgebung in the Austrian state of Upper Austria. Steven Beller, author of ''A Concise History of Austria'', who has family links to Bad Leonfelden, cites episodes from the town's history from its foundation in 1292 to the 21st century, to demonstrate the impact of historical and political events on the local life in Austria's rural provinces. The Jugendstil mosaicist Leopold Forstner was born there. Geography The centre of Bad Leonfelden is north of the provincial capital Linz and south of the state border with the Czech Republic in the Upper Mühlviertel. The Weigetschlag/Studánky border crossing leads to the town of Vyšší Brod, to the north in the Czech Republic. The municipal area covers an area of , at its widest east-west and north-south. The highest elevation is on the eastern slope of the Sternstein at around 970 m above sea level near the village of Oberstern and the lowest point at around 675&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synchronous Motor
A synchronous electric motor is an AC electric motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycles. Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the oscillations of the line current. The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field of any AC motor. A synchronous motor is termed ''doubly fed'' if it is supplied with independently excited multiphase AC electromagnets on both the rotor and stator. The synchronous motor and the induction motor are the most widely used types of AC motors. The difference between the two types is that the synchronous motor rotates at a rate locked to the line frequency since it does not rely on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Braking
Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This method contrasts with conventional braking systems. In those systems, the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with rheostatic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out quickly. General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
