Description : The concept is to use an electronic method to reverse, on demand at the push of a button, the direction of rotation of two-stroke engines. Each push of the button reverses the engine rotation. This allows to eliminate the reverse gear and the related transmission parts : benefits in terms of ease of use, cost, weight, size and safety.
The track brakes are very powerful electromagnets which pull dedicated braking shoes directly on the rails in order to generate a very high frictional force, in supplement to regular braking. They are used during emergency stops to ensure minimum braking distances under any circumstances, even when the rails are very slippery (rain, ice, oil, leaves on the rails, etc.).
Of course, these emergency braking can be very abrupt under certain circumstances. The purpose of the present invention is to allow proportional control of the electromagnetic force according to the real deceleration needs, in order to soften the emergency stops when possible; especially when there are only few passengers and the rails provide maximum grip.
Our participation was to perform tests for concept validation and to correct some conceptualization mistakes.