A frictionless electromagnetic braking system utilizes linear alternators which are controlled by a power electronics converter interface to capture the car’s kinetic. FRICTIONLESS ELECTROMAGNETIC BREAKING SYSTEM. SYNOPSIS: Here is a project to construct a prototype of electronic braking system. We know that. 1 Aug Schematic Diagram of Principle of Electromagnetic Braking System. Schematic Diagram of .. as it frictionless. Electromagnetic brakes are of.
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This brake system can be installed on the brake disc of each wheel without modification systdm the power train of the vehicle. The fluid transmission lines from the master cylinder connect to a fluid distribution system that supplies fluid to both front and rear brakes of the vehicle. This is not the driver reaction time but the system reaction time which cause to lengthen the travel distance during braking.
In this embodiment, the inverter is controlled to adjust the active power for balancing the generated power and losses elrctromagnetic alternator and attached power electronics converter while maintaining the required braking force.
This is an upcoming technological replacement for traditional braking systems. In another embodiment of the invention, the alternator output power can be more than zero, which will be used to charge a battery or burn it to a braking resistor.
Eddy current brake – Wikipedia
However, because of alternator limitation as well as the amount of charge that battery can accept, these systems can produce small braking force which is useful for only in soft braking. One aspect of the present invention pertains to enhancing braking systems in a vehicle or a moving object. Either a high-volume air-ventilation or water-to-air heat exchanger adds additional cost and complexity.
The frictionless electromagnetic braking system of claim 1wherein the external input is generated by at least one of a driver of the vehicle or moving device or an automatic braking system of the vehicle or moving device.
However, unlike friction brakesin which the drag force that stops the moving object is provided by friction between two surfaces pressed together, the drag force in an eddy current brake is an electromagnetic force between a magnet and a nearby conductive object in relative motion, due to eddy currents induced in the conductor through electromagnetic induction.
Energy regeneration brake systems such as the one in hybrid electric vehicles have been developed for improving fuel efficiency. This is the eddy current. Wheel supporter with a brake. Vehicular brake systems incorporating frictional or abrasive devices are known in the art.
In this embodiment, the energy stored in capacitor s provide initial excitation current to the linear induction alternators. Also it requires less maintenance and oiling.
The present disclosure relates to an enhanced braking system in a vehicle, or a moving device, and more specifically to a frictionless brake system employing electromagnetism. In another embodiment, the need for AUX may be eliminated by one or more capacitors braaking to linear alternator windings or power electronics converter s.
US20170037915A1 – Frictionless Electromagnetic Braking System – Google Patents
What is claimed is: The eddy current brake is unusable at low speeds, but can be used at high speeds both for emergency braking and for regular braking. The brake does not work by the simple attraction of a ferromagnetic metal to the magnet.
Japanese Shinkansen trains had employed circular eddy current brake system on trailer cars since Series Shinkansen. In this approach, the car’s kinetic energy is used to enhance the braking.
Wikimedia Commons has media related to Eddy current brakes. In the instant system, kinetic energy of the vehicle or of the moving device is captured through an alternator. The apparatus of claim 15, wherein responsive to the first control signal, the first inverter is to control a slip frequency of the first induction generator.
Further with this system, no replacement brake pads or maintenance is needed. The range of distance can be from about 0. The wheel brake controller controls the wheel inverter to produce the required braking force in the linear alternator at very large slip frequency to produce braming losses and zero to negligible output power.
Eddy current brake
Besides, eddy current loss generates large amounts of heat in the moving parts of the brake, which causes a temperature rise. From Wikipedia, the free encyclopedia. In these systems, an alternator is used to recover the car kinetics energy and convert it to electricity to charge the battery.
As seen in FIG.
Periodic monitoring and replacing the brake shoes or pads are necessary. Also, a hydraulic booster pump and anti-lock braking system ABS are needed to improve the braking performance, but ABS will increase the stopping distance. Gearless Transmission Using Elbow Mechanism. Search Expert Search Quick Search. When it moves past the stationary magnetthe magnet fricyionless a drag force on the metal which opposes its motion, due to circular electric currents called eddy currents induced in the metal by the magnetic field.
Also traditional braking systems are prone to slipping while this one is guaranteed to apply brakes to the vehicle.