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Dicycle
A dicycle () (also known as a diwheel) is a vehicle with two parallel wheels, side by side, unlike single-track vehicles such as motorcycles and bicycles, which have two wheels inline. Originally used to refer to devices with large wheels and pedals, the term is now used in relation to powered self-balancing scooters with smaller wheels and no pedals such as the Segway PT and the self-balancing hoverboard. Etymology In more recent usage, "dicycle" has been used for both pedaled and motorised vehicles with wheels of varying sizes, as long as they share a common axis, though not necessarily a common axle. In 2017, the Merriam-Webster's dictionary, limited usage to 'velocipedes with two parallel wheels,' and the Oxford English Dictionary limited it to 'pedal-powered vehicles with large wheels placed parallel to each other'. Examples Segway PT The Segway PT is a two-wheeled self-balancing personal transporter which uses computers, sensors, and electric motors to keep the device ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monowheel
A monowheel or uniwheel is a type of one-wheeled, single-track vehicle. Unlike the unicycle, a monowheel consists of a large, hollow wheel that loops above and around the driver. Monowheels are typically powered by an engine as with a motorcycle, with a chassis securing the steering, driver's seat, and propulsion mechanism to the interior of the wheel. Hand-cranked and pedal-powered monowheels were patented and built in the late 19th century; most built in the 20th and 21st century have been motorized. Some modern builders refer to these vehicles as monocycles, though that term is also sometimes used to describe motorized unicycles. A world speed record for a motorized monowheel was set in 2016, at 98.464 km/h (61.18 mph). Stability Similar to bicycles, monowheels are stable in the direction of travel, but have limited horizontal stability. This is in contrast to unicycles which are unstable in both directions. Monowheels have also been found to have a lower speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-track Vehicle
A single-track vehicle is a vehicle that leaves a single ground track as it moves forward. Single-track vehicles usually have little or no lateral stability when stationary but develop it when moving forward or controlled. In the case of wheeled vehicles, the front and rear wheel usually follow slightly different paths when turning or when out of alignment. Single-track vehicles have unique dynamics that, in the case of wheeled vehicles, are discussed at length in bicycle and motorcycle dynamics, that usually require leaning into a turn, and that usually include countersteering. Single-track vehicles can roll on wheels, slide, float, or hydroplane. Wheeled *bicycle, tandem bicycle, tall bike, and recumbent bicycle *motorcycle, scooter, and feet forward motorcycle * gyrocar and gyro monorail *kick scooter *unicycle, self-balancing unicycle, Uno (dicycle), and monowheel * inline skate and roller ski (when only one is in contact with the ground or when the second follows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uno Dicycle
The Uno is a novel self-balancing electric motorcycle using two wheels side by side (the configuration used by dicycles). The Uno III adds a third wheel that allows it to transform into a tricycle. Operation The original Uno is controlled in forward motion by the rider shifting weight over the centre of gravity. When the rider shifts forward, the vehicle speeds up to regain balance, when the rider leans back, the vehicle slows. Steering is controlled by side-to-side motion of the rider. The vehicle senses this shift and raises one of the two wheels to allow the vehicle to tilt in the desired turn direction. The Uno III has two configurations, as a dicycle and as a tricycle. As a dicycle it operates much the same as the original Uno with forward and back motion of the rider affecting acceleration. The Uno III also utilizes a hand throttle to affect acceleration and braking. Instead of using rider side-to-side movement to control steering, the Uno III uses a rotating handlebar. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segway PT
A Segway is a two-wheeled, self-balancing personal transporter device invented by Dean Kamen. The name is a registered trademark of Segway Inc. It was brought to market in 2001 as the Segway HT, and then subsequently as the Segway PT. ''HT'' is an initialism for "human transporter" and ''PT'' for "personal transporter." Ninebot, a Beijing-based transportation robotics startup rival, acquired Segway Inc. in April 2015, broadening the company to include other transportation devices. In June 2020, it was announced that it would no longer make the Segway PT. History Independent company The Segway PT, referred to during development and initial marketing as the Segway HT, was developed from the self-balancing iBOT wheelchair which was initially developed at University of Plymouth, in conjunction with BAE Systems and Sumitomo Precision Products. The first patent of human transporter was filed in 1994 and granted in 1997, followed by others, including one submitted in June 1999 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-balancing Scooter
A self-balancing scooter (also hoverboard, self-balancing board, electric scooter board, or swegway) is a self-balancing personal transporter consisting of two motorized wheels connected to a pair of articulated pads on which the rider places their feet. The rider controls the speed by leaning forward or backward, and direction of travel by twisting the pads. Invented in its current form in early 2013, the device is the subject of complex patent infringement, patent disputes. Volume manufacture started in China in 2014 and early units were prone to catching fire due to an overheating battery which resulted in product recalls in 2016, including over 500,000 units sold in the United States by eight manufacturers. There have been 23 official recalls since 2016, affecting around 1,115,200 units in total. History Shane Chen, a China, Chinese businessman and founder of Inventist filed a patent for a device of this type in February 2013 and launched a Kickstarter fund-raising campaign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Segway Inc
Segway Inc. is a Chinese owned, formerly American manufacturer of two-wheeled personal transporters, chiefly through its Segway PT and Segway miniPro product lines. Founded by inventor Dean Kamen in 1999, the company's name is a homophone of the word "segue". Segway Inc. was headquartered in the town of Bedford, New Hampshire, United States and primarily marketed its products to various niche markets, including police departments, military bases, warehouses, corporate campuses, and industrial sites. It has held some key patents on designs for self-balancing personal transporters, although some of them have since expired. Since the Chinese company Ninebot acquired it in 2015, Segway has focused on developing a stronger presence in the consumer market with smaller products such as the Segway miniPro. History Origins The first patent by Dean Kamen for a self-balancing transportation device was filed on February 23, 1993, and granted on December 30, 1997, in relation to the iBO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dean Kamen
Dean Lawrence Kamen (; born April 5, 1951) is an American engineer, inventor, and businessman. He is known for his invention of the Segway PT, Segway and iBOT, as well as founding the non-profit organization For Inspiration and Recognition of Science and Technology, FIRST with Woodie Flowers. Kamen holds over 1,000 patents. Early life and family Dean Lawrence Kamen was born on April 5, 1951 on Long Island, New York (state), New York, to Jack Kamen and Evelyn Kamen (born Rothenberg). His father Jack Kamen, was an illustrator for ''Mad (magazine), Mad'', ''Weird Science (comic), Weird Science'' and other EC Comics publications. During his teenage years, Kamen was already being paid for his ideas; local bands and museums paid him to build light and sound systems. His annual earnings reached $60,000 before his high school graduation. He attended Worcester Polytechnic Institute, but in 1976 quit before graduating, after five years of private advanced research for the insulin pump Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airwheel Holding Limited
An electric unicycle (often initialized as EUC or acronymized yuke or Uni) is a self-balancing personal transporter with a single wheel. The rider controls speed by leaning forwards or backwards, and steers by twisting or tilting the unit side to side. The self-balancing mechanism uses accelerometers and gyroscopes. Most manufacturers of EUCs are based out of China, including Segway, Inmotion, Kingsong, Begode, and Leaperkim. Operation Similar to hoverboards, Onewheels, and Segways, electric unicycles are self-balancing in a forward and backward direction, with side-to-side (lateral) stability being provided by human steering motions that tilt or twist the unit, similar to Bicycle and motorcycle dynamics. The control of a unicycle can be considered to be similar to an inverted pendulum. Many electric unicycles have suspension, either operated by air or springs. Electric unicycles come in varying speeds, battery capacities, and motor wattages. Low-end models may have speeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delft University Of Technology
The Delft University of Technology (TU Delft; ) is the oldest and largest Dutch public university, public Institute of technology, technical university, located in Delft, Netherlands. It specializes in engineering, technology, computing, design, and natural sciences. It is considered one of the leading technical universities in Europe and is consistently ranked as one of the best schools for architecture and engineering in the world. According to the QS World University Rankings it ranked 3rd worldwide for architecture and 13th for Engineering, Engineering & Technology in 2024. It also ranked 3rd best worldwide for Mechanical engineering, mechanical and aerospace engineering, 3rd for Civil engineering, civil and structural engineering, 11th for chemical engineering, and 12th for design. With eight Faculty (division), faculties and multiple research institutes, TU Delft educates around 27,000 students (undergraduate and postgraduate), and employs more than 3,500 doctoral candidates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damping Ratio
In physical systems, damping is the loss of energy of an oscillating system by dissipation. Damping is an influence within or upon an oscillatory system that has the effect of reducing or preventing its oscillation. Examples of damping include viscous damping in a fluid (see Viscosity, viscous Drag (physics), drag), Friction, surface friction, radiation, Electrical resistance and conductance, resistance in electronic oscillators, and absorption and scattering of light in optical oscillators. Damping not based on energy loss can be important in other oscillating systems such as those that occur in ecology, biological systems and Bicycle_and_motorcycle_dynamics#Lateral_motion_theory, bikes (ex. Suspension (mechanics)). Damping is not to be confused with friction, which is a type of dissipative force acting on a system. Friction can cause or be a factor of damping. Many systems exhibit oscillatory behavior when they are disturbed from their position of static equilibrium. A mass su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
