PURPOSE: To provide a dynamic power steering device capable of using a small electric motor whose output power is small by reducing the direction changing resistance of a tire.
CONSTITUTION: In a dynamic power steering device provided with a main pinion 37 which is engaged with a steering wheel, assist pinion 41 provided in addition to this main pinion 37, an electric motor 40 which rotate this assist pinion 41, a rack with which both pinions mesh, and a control circuit for displaying optimum power assist force by controlling this electric motor 10, the dynamic power steering comprising a vibrator 30 for vibrating the rack or the link and others engaged with the rack, a control circuit for controlling this vibration exciter 30, and an oscillation circuit connected to the control circuit for exciting this vibration exciter according to the oscillation signals of the oscillation circuit.
OGISO YOSHINORI
KUNIDA SHINOBU
