Rail Devices TRIZ Cases

Embedding a relay coil in the tire and shielding the steel belt cuts eddy currents and improves in-motion wireless power transfer efficiency.

A cancel coil forms a shielded space so a moving member can relocate metal debris away from high-flux regions and prevent heating.

A sealed base-and-cover coil structure boosts waterproofing, vibration resistance, and space factor for outdoor contactless EV charging.

Crossing conductor segments connect adjacent subwindings to lower potential differences, smooth the field, and avoid added capacitors.

Crossing conductor segments in adjacent subwindings lower potential differences, reduce stray fields, and keep inductive power transfer coils compact.

Alternating laminated thin-film windings cut skin- and proximity-effect losses in wireless power coils, improving efficiency and limiting heat.

An onboard energy storage unit and controller shift traction power away from the grid during peak demand to avoid supply overload and energy cost spikes.

Continuous RF power transfer recharges EV batteries while driving, cutting charging stops and extending travel range without cable connection.

Stabilized current injection and rail-to-ground voltage sensing detect railway insulation degradation without complex stray current measurement.