A method for determining a friction torque exerted within a steering column of an electric power steering system, the power steering system comprising a steering column provided with a torsion bar undergoing an instantaneous torsion torque, the steering column being linked to a pinion capable of driving a rack, a torsion bar sensor intended to measure the instantaneous torsion torque, the method comprising an acquisition step, during which at least one value of the friction torque is measured by the torsion bar sensor, the acquisition step being carried out following the reception of a trigger signal, the value of the trigger signal depending on values of conditional variables (VL, A, V, C, ΔC, ΔA).

This application describes systems and techniques for adjusting one or more setting(s) of a vehicle based on detected condition(s) to avoid damage due to contact of the tires with a body, chassis, or other components of the vehicle. In some instances, the vehicle may determine a ride height of the vehicle, determine a limited range of steering angles based at least in part on the ride height, and control operation of the steering system of the vehicle based at least in part on the limited range of steering angles. In some instances, the vehicle may determine a steering angle of the vehicle, determine a limited range of ride heights based at least in part on the steering angle, and control operation of the suspension system of the vehicle based at least in part on the limited range of ride heights.

A trajectory for a vehicle can be generated using a lateral offset bias. The vehicle, such as an autonomous vehicle (AV), may be directed to follow reference trajectory for through an environment. The AV may determine a segment associated with the reference trajectory based on curvatures of the reference trajectory, determine a lateral offset bias associated with the segment based at least in part on, for example, one or more of a speed or acceleration of the vehicle, and determine a candidate trajectory for the autonomous vehicle based at least in part on the lateral offset bias. The candidate trajectory may then be used to control the autonomous vehicle.

A device for stabilizing a vehicle after a collision against a lateral carriageway boundary, includes a lane recognition system, with which information relating to the course of the lane is determined or detected. A collision detection unit identifies a collision of the vehicle against the lateral lane carriageway boundary on the basis of signals from at least one sensor or on the basis of a driving state variable. The device also includes a steering actuator for steering a steering system and a brake actuator for controlling one or more wheel brakes. A target path determination unit determines a target path for the vehicle on the basis of the course of the lane determined or detected before or at the time of the collision. A controller guides the vehicle onto the target path and/or stabilizes the vehicle via a steering intervention and/or individual wheel brake interventions.

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).

A motor vehicle has a control device, a first sensor and a global positioning device. The control device has a control unit and a data memory. At least one item of information about an arrangement of an overhead line is stored on the data memory. The control unit is connected to the first sensor and to the global positioning device. The first sensor determines a position of the overhead line relative to the motor vehicle and provides the control unit with the relative position. The global positioning device determines a global position of the motor vehicle and provides the control unit with it. The control unit, on the basis of the established relative position, the established global position and the information about the arrangement of the overhead line, calculates a position of the motor vehicle.

A vehicle is operable in a first operating mode in which the vehicle travels autonomously inside the traffic lane based on a detection of lane markings of a traffic lane and in a second operating mode in which the vehicle autonomously follows a vehicle driving in front while ignoring lane markings, and a method of its operation includes operating the vehicle in a first of the two operating modes, detecting a vehicle environment, and switching from the first operating mode to the other of the two operating modes as a function of the detected vehicle environment. A device can execute the method and a computer program can be executed by a device for performing the method.

An electric power steering device includes: a steering torque sensor that detects a steering torque; a current command value calculation unit that calculates a current command value based on the steering torque; an electric motor that generates a steering assist torque; a motor control unit that controls and drives the electric motor based on the current command value; a navigation controller and a GPS receiver that detects position information of a vehicle; and an operation assist unit that stores, in a map database, the steering torque detected by the steering torque sensor and the position information of the vehicle upon detection of the steering torque in association with each other and executes operation assist processing for assisting the driver in operating the steering wheel based on a past steering torque corresponding to current position information.

Control system and method which is adapted for use in a motor vehicle and intended to effect an at least semi-autonomous driving operation of the motor vehicle by means of assigned actuators on the basis of environmental data which are obtained from one or more environment sensors assigned to the motor vehicle, and wherein the control system is adapted and intended to detect a failure of a conventional steering system of the motor vehicle and attempt a change of direction of the vehicle, which corresponds to a desired steering angle, from current driving parameters by means of matched acceleration and/or deceleration interventions at individual wheel drives or wheel brakes, respectively, of the vehicle.

In a drive assist system, a map data acquiring section acquires a forward road shape and a rearward road shape. The forward road shape represents a road shape at a forward position in front of a current position of an own vehicle on a road on which the own vehicle drives. The rearward road shape represents a road shape at a rearward position on the road. The rearward position is behind the forward position and in front of the current position of the own vehicle on the road. An assist control calculation section determines steering characteristics of the own vehicle at the target position located between the forward position and the rearward position based on the forward road shape and the rearward road shape, and adjusts a steering angle of the own vehicle on the basis of the determined steering characteristics of the own vehicle.