Drive and Braking Module
The driving module of the RailCab consists of a doubly-fed long-stator linear motor. In this concept the drive itself is no longer carried along in the vehicle. The three-phase windings on the stator form a magnetic field that moves along the rail and thus takes the vehicle along with it. The magnetic dynamic effects between the magnetic fields of stator and rotor accelerate and brake the vehicle without recourse to the contact between wheel and rail. Doubly-feeding allows orientation of the vehicle’s magnetic field in any direction. Thus more than one RailCab can be operated in the same stator section. The wheels of the vehicle are now just used for guiding and steering, a feature which further reduces wear of the wheels. The secondary of the motor is mounted on the vehicle. This reduces the unsprung masses in the vehicle because gearboxes are completely dispensed with. Additionally, the motor can be adapted to the landscape topology, e.g., scaled up where it has to negotiate ascending slopes.