Superimposition device for steering system of vehicle, has superimposition gearbox with three gear shafts, which have electrically controlled switching unit that serves to switch coupling piece between coupling state

摘要

The superimposition device (6) has superimposition gearbox (7) with three gear shafts (10,15,16), which have an electrically controlled switching unit. The switching unit serves to switch a coupling piece between a coupling state, in which one of the former and the third gear shaft is firmly connected, and a decoupling state, in which the shaft is detached. The coupling piece is connected with the former gear shaft in torque-proof manner and the electrical energy requiring electrical components of the switching unit are arranged in torque-proof manner opposite the vehicle body.