Abstract: The present invention relates to power assisted Steer by Wire steering system (100) for a vehicle or similar comprising a steering arrangement (1), a steering shaft (2) connected to the steering arrangement (1), steerable elements (13,13), an electrically controllable actuator (8) arranged on or connected to a link arrangement (9) connected to the steerable elements (13,13), an Electronic Control Unit, ECU, (5) controlling the electrically controllable actuator (8) and a feedback arrangement (10) connected to the ECU (5). The feedback arrangement (10) comprises an electric feedback motor (3) and a mechanical feedback arrangement (4). The mechanical feedback arrangement (4) comprises a deformation reactive, clastic arrangement arranged to react on a force produced by the steering arrangement (1) by generation of a reaction force counteracting the force produced by the steering arrangement (1) to provide a mechanical feedback force.

Abstract: The present invention relates to a power assisted steering system (100) for a vehicle or similar, comprising a steering arrangement (1), a steering shaft (2) connected thereto, steering elements (101,101), an electric steering assistance actuator (8) for controlling the steering elements (101,101) and an Electronic Control Unit (ECU) (5) comprising transformation functions for transformation of input information received by means of a number of sensors (16,4,13,14, 15, 17) to command signals for execution in steering feel control and steering position control functions arranged to provide actuator activation signals to steering arrangement actuator (3) controlling feedback to the steering arrangement (1) and/or to the steering actuator (8) controlling one or more steering elements (101,101) to create and/or tune steer effects and/or create desired extended feedback.

Abstract: The present invention relates to vehicle steering system arrangement (100) comprising a vehicle suspension allowing wheels to be steered and power assisted vehicle steering with a feedback torque actuator (130), the steering feel being controlled by means of a torque and/or angle control system, TAC, (132). The vehicle suspension with steerable wheels comprises a plurality of vehicle suspension parameters and the geometry and/or dimensions of one or more of the vehicle suspension parameters or elements is/are designed to reduce or minimize the steering force required for steering the vehicle in driving.