"Hyper Loop Concept" running at 1,200 km / h is a step forward, its mechanism is to bring magnets side by side with a special "Hullback Arrangement"

Next-generation transportation system that entrepreneur Erion Mask devised and runs at a speed faster than an airplane with a speed of 1,200 km / h in a thin tubular rail (tube) "Hyper loop(Hyperloop) "to promote the development of"Hyperloop Transportation TechnologiesAnnounced that it acquired its core technology license. According to the contents announced this time, the hyperloop vehicle "pod" makes permanent magnet "Hullback sequence"In a special way called"Induct track typeBy adopting it, we are realizing high efficiency while keeping costs down.

Hyperloop Transportation Technologies, Inc. Reveals Hyperloop ™ Levitation System
http://www.prnewswire.com/news-releases/hyperloop-transportation-technologies-inc-reveals-hyperloop-levitation-system-300264946.html

Hyperloop Transportation Technologies Picks Passive Levitation for Pods - IEEE Spectrum
http://spectrum.ieee.org/tech-talk/transportation/alternative-transportation/hyperloop-company-plans-to-levitatepassively

Hyperloop Transportation Technologies (HTT) on May 9, 2016,Lawrence Livermore National LaboratoryAnnounced that it has entered into a license agreement with exclusive use of the induct track system as a levitation method of the hyperloop system between the LLNL and LLNL. The inductive track method is a method that Dr. Post of the Institute has been pursuing for years of research, and after the doctor's death, both HTT and LLNL used a passive magnetic levitation method over one year We have been promoting system development.

The core of this inductoktr system is the fact that a plurality of permanent magnets are arranged in a special orientationHullback sequence"(Or Halbach array) called placement method. As shown in the conceptual diagram below, a unit in which a plurality of permanent magnets are arranged so that a magnetic field is directed in the direction of the arrow is installed in a hyperloop vehicle.


The following animation explains how Hyper Loop adopting induct track system runs, its outline.

Hyperloop Levitation - YouTube


Like HyperLoop, like the existing "Linear Motor Car (English name: Maglev)", it is a vehicle that levitates while floating with the help of a magnet. However, conventional linear motor cars require a large cost to operate.


It is a large amount of electromagnets (coils) that needs to spread over a large amount of electricity and orbit to occupy the majority.


Hyperloop is able to drastically reduce the cost of such infrastructure.


The core technology is an orbit (aluminum tube) that does not require electric power and a magnetic system mounted on the vehicle.


The system can be roughly divided into two. First, "Power Conditioning Unit" which controls power from the battery mounted in the vehicle and "Thrustcore" which imparts propulsive power to the vehicle by the linear motor method.


And it is used to make the car body float slightly from the ground,Hullback sequence(Halbach Array) with an induct track type floating system. By combining these two magnetic systems, hyperloop is a mechanism to obtain the power of promotion and emergence.


"Phase 1: Acceleration"


In order to go forward as a train, the driving force is necessary first and foremost. Hyperloop generates its driving force with a linear motor.


Using the linear motor arranged on the side of the car body, we obtain acceleration power with magnetic force.


An induced current will be generated between the induct track and the track tube arranged at the bottom of the car from the time when it reaches 20 mph (about 32 km / h). This is the essential part of the induct track system.


"Phase 2: Surfacing"


By reaching a certain speed, the hyperloop will get the levitation force by the inductoctrack. The mechanism is as follows.


As mentioned above, a permanent magnet with a Hullback arrangement is mounted on the car body. On the other hand, a coil is embedded in the bottom of the track tube. It is the point that power is not supplied to this coil and both ends are closed "closed circuit". As the permanent magnet with the Hullback arrangement approaches the coil, an induced current is generated and a magnetic force in the direction to repel the vehicle is generated, that is, it generates a levitation force.


That is,In the in-track system, levitation force is obtained merely by imparting propulsive force to the vehicle, and power for levitation is not requiredIt is a system with very high efficiency.


With no wheels in contact with the track, the hyper loop traveling in the decompressed tube has very low running resistance, so you can travel at a speed exceeding the speed of sound, maximum speed 760 miles (about 1200 km / h) . Hyper loop enables speed which absolutely can not be realized with conventional drive system.


"Phase 3: Deceleration"


When decelerating, use it as a brake by letting the linear motor used for acceleration work in the reverse direction.


Of course, at deceleration it collects electric energy and charges the batteryRegenerative brakeIt is equipped with the system, which helps to improve power efficiency.


If the speed drops, the levitation force by the induct track system will also be lost. Since the car body contacts the track tube as it is, at low speed it uses the tire or the wheel.


At the end of the movie, the situation of running experiments using a small experimental model was contained only for a moment.


For this hyperloop concept, development is proceeding even in companies other than HTT. A name similar to HTT "Hyperloop Technologies"We are working on the construction of an orbital tube for testing in the desert in Nevada province and we are making plans to run the vehicle at 700 mph per hour in 2016 (about 1100 km / h).

Hyperloop test tube for 1000 kilometers over the next generation will be built in the desert - GIGAZINE