A steering system for a vehicle includes a housing section, a rack section configured to penetrate the housing section, a case section mounted in the housing section, and a sensor section, mounted in the case section, configured to engage the rack section and sense an amount of movement of the rack section while being rotated.

A steering system for a vehicle includes a housing section, a rack section configured to penetrate the housing section, a case section mounted in the housing section, and a sensor section, mounted in the case section, configured to engage the rack section and sense an amount of movement of the rack section while being rotated.

Disclosed is an autonomous driving vehicle including a front wheel support connected to a front wheel as one body and supporting the front wheel, and a knuckle arm angle adjustment assembly having one side to which a knuckle arm is connected, the knuckle arm moving with the front wheel during steering the front wheel, and knuckle arm angle adjustment assembly being coupled to one side of the front wheel support to be capable of angle adjustment for setting an inclination angle of the knuckle arm.

Disclosed is an autonomous driving vehicle including a front wheel support connected to a front wheel as one body and supporting the front wheel, and a knuckle arm angle adjustment assembly having one side to which a knuckle arm is connected, the knuckle arm moving with the front wheel during steering the front wheel, and knuckle arm angle adjustment assembly being coupled to one side of the front wheel support to be capable of angle adjustment for setting an inclination angle of the knuckle arm.

An independent steering system includes a knuckle fastened to inside of a wheel and driven integrally with the wheel, an upper arm fastened to an upper end portion of the knuckle, a lower arm fastened to a lower end portion of the knuckle, a steering motor positioned on the lower arm, and a steering gear portion having a first end portion connected to the steering motor and a second end portion engaged to the knuckle, wherein the steering gear portion rotates integrally with the knuckle by a rotation force of the steering motor.

An independent steering system includes a knuckle fastened to inside of a wheel and driven integrally with the wheel, an upper arm fastened to an upper end portion of the knuckle, a lower arm fastened to a lower end portion of the knuckle, a steering motor positioned on the lower arm, and a steering gear portion having a first end portion connected to the steering motor and a second end portion engaged to the knuckle, wherein the steering gear portion rotates integrally with the knuckle by a rotation force of the steering motor.

An electric vehicle controls turning of the electric vehicle in accordance with the orientation of the wheels and skid steering to match the path and turning radius as indicated by the steering wheel. A processing circuit detects the position of the steering wheel and determines the direction of the turn and the resulting path and turning radius of the electric vehicle. The processing circuit either measures the orientation of the wheels or captures data regarding the turning radius of the electric vehicle. The processing circuit controls the traction motors of the electric vehicle so that the actual path and turning radius of the electric vehicle matches the path and turning radius indicated by the steering wheel. Further, the processing circuit may further control controls the traction motors to attempted to maintain the speed of the electric vehicle as indicated by the throttle.

A turning device includes a turning shaft having a first ball screw groove as one of a left screw and a right screw and a second ball screw groove as the other of the left screw and the right screw and turning wheels to be turned by moving in an axial direction, a first electric motor generating a first driving force, a second electric motor operating independently of the first electric motor and generating a second driving force, a first ball screw nut transmitting the first driving force generated by the first electric motor to the first ball screw groove, a second ball screw nut transmitting the second driving force generated by the second electric motor to the second ball screw groove, and a rotation regulating part regulating relative rotation of the turning shaft around an axis with respect to a housing.

A turning device includes a turning shaft having a first ball screw groove as one of a left screw and a right screw and a second ball screw groove as the other of the left screw and the right screw and turning wheels to be turned by moving in an axial direction, a first electric motor generating a first driving force, a second electric motor operating independently of the first electric motor and generating a second driving force, a first ball screw nut transmitting the first driving force generated by the first electric motor to the first ball screw groove, a second ball screw nut transmitting the second driving force generated by the second electric motor to the second ball screw groove, and a rotation regulating part regulating relative rotation of the turning shaft around an axis with respect to a housing.

Disclosed herein is a method and arrangement for safe limiting of torque overlay intervention in a power assisted steering system of a road vehicle having an autonomous steering function arranged to selectively apply a steering wheel overlay torque to a normal steering assistance torque. A wheel self-aligning torque (ƒ.sub.R) of the road vehicle is modelled for a current vehicle velocity (ν) and pinion angle (δ.sub.w). A steering wheel overlay torque request (τ.sub.R) is received. Based on the received steering wheel overlay torque request (τ.sub.R) is provided a steering wheel overlay torque (τ.sub.A) in hands-off applications limited to a safe set interval that is symmetrical around the modeled wheel self-aligning torque (ƒ.sub.R).