A method for open-loop or closed-loop control of a driver assistance system of a vehicle, including: a) using a first sensor device to detect from a roadway at least one lane and a roadway marking that separates the lane from an edge of the roadway; b) using a second sensor device to detect operation of at least one operating device of the vehicle that influences the driving dynamics of the vehicle by virtue of the driver; c) using steering actuators and/or brake actuators to influence the driving dynamics of the vehicle; and d) outputting, if there is a threat of the vehicle leaving the lane, as detected by the first sensor device, a first warning signal. A related driver assistance system is also described.

A steering control system for a commercial vehicle having braking and steering systems. The braking system brakes dissymetrically side wheels of the vehicle. The steering system steers the vehicle based on a steering signal. The steering control system includes selection and control modules. The selection module switches between first and second steering modes. The first mode indicates steering of the vehicle by turning vehicle wheels. The second mode indicates steering of the vehicle by generating a braking signal for at least one wheel providing a yaw moment applied to the vehicle. The control module generates the first signal indicating a steering demand in the first mode and a second signal indicating a steering demand in the second mode. The control module provides the first signal to the steering system and the second signal to the braking system to brake the vehicle dissymetrically to steer the vehicle with the yaw moment.

A vehicle steering arrangement for a vehicle comprises a rack a position sensor, a steering column, a steering wheel, a torque sensor arranged to sense a torque applied onto the steering wheel and arranged to provide a torque signal representative thereof, an electronic control unit provided with a virtual steering model, a rack-mounted electromechanical actuator, and a force obtaining arrangement configured to obtain forces of steered wheels acting on the rack. The electronic control unit is configured to provide a virtual rack position based on the virtual steering model and at least a combination of the obtained forces and the torque signal, and is arranged to control the rack-mounted electromechanical actuator such that the current position of the rack is controlled towards the virtual rack position. The present disclosure also relates to an autonomous vehicle steering arrangement, a vehicle and a method of steering a vehicle.

A multi-lane scenario driving support is provided for an ego vehicle in a traffic situation. Traffic surroundings are measured by an environment sensor system. The traffic surroundings include data about traffic and free space within an ego lane of the ego vehicle and an adjacent lane, and data about front proximity area and rear proximity area of the ego vehicle. A decision device evaluates the measured traffic surroundings and decides a driving operation to be executed by the ego vehicle based on at least one strategy. In the decision device, a cost function is used for choosing one of at least six strategies. The cost function is based on at least a core priority to avoid collision of the ego vehicle and not cause collision of the ego vehicle with a third party vehicle.

A driving support apparatus for an own vehicle includes a travel trajectory obtaining unit configured to obtain a preceding vehicle trajectory which is a travel trajectory of a preceding vehicle, and a control unit configured to perform a follow-up steering control for changing a steering angle of the own vehicle in such a manner that the vehicle travels along a target traveling line determined based on the preceding vehicle trajectory. The control unit is configured to, when a first distance condition and a manual steering condition are both satisfied while the follow-up steering control is being performed, stop the follow-up steering control.

According to some embodiments, a system determines a number of boundary areas having predetermined dimensions centered around each of a number of control points of a first reference line. The system selects a number of two-dimensional polynomials each representing a segment of an optimal reference line between adjacent control points. The system defines a set of constraints to the two-dimensional polynomials to at least ensure the two-dimensional polynomials passes through each of the boundary areas. The system performs a quadratic programming (QP) optimization on a target function such that a total cost of the target function reaches minimum while the set of constraints are satisfied. The system generates a second reference line representing the optimal reference line based on the QP optimization to control the ADV autonomously according to the second reference line.

A driving assistance method includes extracting interference traffic line that is a route along which another vehicle can move and that interfere with a planned travel route of a subject vehicle, selecting an interference traffic line of another vehicle necessary for determining a driving action of the subject vehicle from among the extracted interference traffic lines on the basis of at least one of a road shape, a traffic rule, and a traffic situation, and determining the driving action of the subject vehicle to respond to another vehicle moving along the selected interference traffic line.

A vehicle control system includes: a first device that generates trajectory data indicating a future trajectory of a host vehicle and outputs the generated trajectory data; a second device that controls at least one of acceleration/deceleration and steering of the host vehicle on the basis of the trajectory data generated by the first device; and a third device that receives the trajectory data generated by the first device and writes the received trajectory data in a storage unit thereof, the third device being a device separate from at least the first device, wherein when an abnormality occurs in the trajectory data output by the first device, the second device controls at least one of acceleration/deceleration and steering of the host vehicle on the basis of the trajectory data which has been received by the third device and written in the storage unit before the abnormality occurred.

An apparatus for controlling a steering angle, a system including the same, and a method thereof are provided may include a steering angle gain variation determination device that determines an increase or a decrease of a steering angle gain variation rate depending on a steering angle error value, a steering angle gain determination device that determines a steering angle gain based on the steering angle gain variation rate, a steering angle gain regulation device that determines a final gain by reflecting a driver intention in a steering angle gain, and a steering torque determination device that determines steering torque by use of the final gain.

A vehicle control system includes an acquirer that acquires environmental information including information of a reference speed preset on a scheduled route on which an own-vehicle travels and a travel controller that performs speed control and steering control of the own-vehicle on the basis of the environmental information acquired by the acquirer. The travel controller performs the speed control with the reference speed as a target speed of the own-vehicle if a control index value regarding the steering control is equal to or less than an upper limit value when the own-vehicle travels on the scheduled route at the reference speed and performs the speed control with a speed at which the control index value regarding the steering control is equal to or less than the upper limit value as the target speed of the own-vehicle if the control index value exceeds the upper limit value.