Adaptation of control equipment on vehicle for remote actuation from a stationary place (devices along the route for controlling devices on rail vehicles B61L3/00; central rail-traffic control systems B61L27/00)

Full Title

Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles > Adaptation of control equipment on vehicle for remote actuation from a stationary place (devices along the route for controlling devices on rail vehicles B61L3/00; central rail-traffic control systems B61L27/00)