Stop Position Control of the Wagon Driven by Induction Motor : Load Detection during the Braking

It is the purpose that a wagon driven by a squirrel-cage induction motor is controlled to stop at the given position on a rail. The wagon is driven on the rail and arrives at the brake-start point. From this point, the motor should be braked corresponding to the load of the wagon. Therefore, the distance from brake-start point to the stop position must be constant. The brake of the 3 phase squirrel-cage induction motor is various method