Steering system with magnetic torque overlay

A ball-nut assembly of a power-steering system comprising:

• a hydraulic valve;
• a magnetic actuator configured to generate an output of torque required from the steering system for a maneuver of a steering wheel of a vehicle by a driver thereof and apply the torque to the hydraulic valve independently of input by the driver, the steering system being configured to calculate an appropriate amount of electric current and send the current to the magnetic actuator to generate the output torque and the torque being added to or subtracted from the steering system in any of the directions independently of the driver input by monitoring by the steering system of pressure exerted by the driver in various directions on the steering wheel and inputs from the vehicle into the steering system;
• a spool shaft, an output shaft, a steering worm, and right- and left-turn fluid cavities and the magnetic actuator, the hydraulic valve, the spool shaft, the output shaft, the steering worm, and the fluid cavities are operatively connected to each other;
• and
• the steering worm is part of the control-valve assembly and mounted on a rack-piston nut via a ball circuit.