Abstract: A method for determining whether an automatic collision avoidance steering maneuver for a vehicle equipped with an automated driving system should be executed is disclosed.

Abstract: Disclosed is a method of providing a scenario-based overlay torque request signal in a steer torque manager (1) during driver-override of an auxiliary steering assistance system (2) function in a road vehicle (3) having an EPAS system (4). The steer torque manager (1) has a wheel angle controller (1b) for providing an assistance torque request related signal, and a driver-in-the-loop functionality (1a) for determining driver-override and providing a driver-override related signal.

Abstract: Disclosed is a method of providing a scenario-based overlay torque request signal in a steer torque manager (1) during driver-override of an auxiliary steering assistance system (2) function in a road vehicle (3) having an EPAS system (4). The steer torque manager (1) has a wheel angle controller (1b) for providing an assistance torque request related signal, and a driver-in-the-loop functionality (1a) for determining driver-override and providing a driver-override related signal.

Abstract: An apparatus and method are described for situation dependent wheel angle (?w) control by a HAD or ADA system of a road vehicle, the HAD or ADA system configured to receive internal state data as well as ambient information or map data, and generates a penalty measure based thereupon. A lateral controller receives a desired path and outputs a wheel angle request (?w,r). A PSCM includes a wheel angle controller configured to receive the wheel angle request (?w,r), wheel angle (?w) and wheel angle rate ({dot over (?)}w) data, and output an overlay torque request to a motor controller of a steering system. The lateral controller calculates gain parameters (I?w, I{dot over (?)}w) based on the penalty measure and outputs these to the wheel angle controller. The wheel angle controller receives and uses the gain parameters (I?w, I{dot over (?)}w) in control loops thereof to adjust the bandwidth of the wheel angle controller.

Abstract: A steer torque manager for an advanced driver assistance system of a road vehicle and a method therefor. The steer torque manager includes a driver in the loop functionality for determining when to hand over control to a driver, and a wheel angle controller for providing, from an advanced driver assistance system wheel angle request, an overlay torque request to be added to a torque request from an electrical power assisted steering. The steer torque manager is configured to receive an assistance torque related signal and arranged to scale, in a scaling functionality the bandwidth of the wheel angle controller based on a measure of driver activity, such that the bandwidth is reduced if the measure of driver activity indicates high driver activity and increased if the measure of driver activity indicates low driver activity.

Abstract: A steer torque manager (STM) for an advanced driver assistance system (ADAS) of a road vehicle and a method therefor. A driver in the loop functionality determines when to hand over control to a driver. A wheel angle controller uses an ADAS wheel angle request to produce an overlay torque request to be added to a torque request from an electrical power assisted steering. The STM is arranged to receive an assistance torque related signal. When driver assistance is provided by the ADAS, the STM is arranged to feed forward and subtract from the overlay torque request a feed forward signal scaled to be a scaled version of the assistance torque related signal, using a scale factor in the range from 0 to 1 that assumes a lower value if a measure of driver activity indicates high driver activity and a higher value if the measure indicates low driver activity.

Abstract: A steer torque manager for an advanced driver assistance system of a road vehicle and a method therefor. A driver-in-the-loop functionality determines when to hand over control to a driver. A wheel angle controller uses an advanced driver assistance system wheel angle request to produce an overlay torque request to be added to a torque request from an electrical power assisted steering. The steer torque manager controls the driver-in-the-loop functionality based on amplitude and frequency content of a torsion bar torque related signal which is filtered to attenuate an amplitude thereof at frequencies up to 2 Hz. The overlay torque request to be provided by the wheel angle controller is modulated based on a measure of driver activity derived from the filtered torsion bar torque related signal, where more recent values are weighted higher than older values, using a time window of 0.5-3 seconds.

Abstract: An apparatus and method are described for situation dependent wheel angle (?w) control by a HAD or ADA system of a road vehicle, the HAD or ADA system configured to receive internal state data as well as ambient information or map data, and generates a penalty measure based thereupon. A lateral controller receives a desired path and outputs a wheel angle request (?w,r). A PSCM includes a wheel angle controller configured to receive the wheel angle request (?w,r), wheel angle (?w) and wheel angle rate ({dot over (?)}w) data, and output an overlay torque request to a motor controller of a steering system. The lateral controller calculates gain parameters (I?w, I{dot over (?)}w) based on the penalty measure and outputs these to the wheel angle controller. The wheel angle controller receives and uses the gain parameters (I?w, I{dot over (?)}w) in control loops thereof to adjust the bandwidth of the wheel angle controller.

Abstract: A steer torque manager for an advanced driver assistance system of a road vehicle and a method therefor. The steer torque manager includes a driver in the loop functionality for determining when to hand over control to a driver, and a wheel angle controller for providing, from an advanced driver assistance system wheel angle request, an overlay torque request to be added to a torque request from an electrical power assisted steering. The steer torque manager is configured to receive an assistance torque related signal and arranged to scale, in a scaling functionality the bandwidth of the wheel angle controller based on a measure of driver activity, such that the bandwidth is reduced if the measure of driver activity indicates high driver activity and increased if the measure of driver activity indicates low driver activity.

Abstract: A steer torque manager (STM) for an advanced driver assistance system (ADAS) of a road vehicle and a method therefor. A driver in the loop functionality determines when to hand over control to a driver. A wheel angle controller uses an ADAS wheel angle request to produce an overlay torque request to be added to a torque request from an electrical power assisted steering. The STM is arranged to receive an assistance torque related signal. When driver assistance is provided by the ADAS, the STM is arranged to feed forward and subtract from the overlay torque request a feed forward signal scaled to be a scaled version of the assistance torque related signal, using a scale factor in the range from 0 to 1 that assumes a lower value if a measure of driver activity indicates high driver activity and a higher value if the measure indicates low driver activity.

Abstract: A steer torque manager for an advanced driver assistance system of a road vehicle and a method therefor. A driver-in-the-loop functionality determines when to hand over control to a driver. A wheel angle controller uses an advanced driver assistance system wheel angle request to produce an overlay torque request to be added to a torque request from an electrical power assisted steering. The steer torque manager controls the driver-in-the-loop functionality based on amplitude and frequency content of a torsion bar torque related signal which is filtered to attenuate an amplitude thereof at frequencies up to 2 Hz. The overlay torque request to be provided by the wheel angle controller is modulated based on a measure of driver activity derived from the filtered torsion bar torque related signal, where more recent values are weighted higher than older values, using a time window of 0.5-3 seconds.

Abstract: 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 (ƒR) of the road vehicle is modelled for a current vehicle velocity (?) and pinion angle (?w). A steering wheel overlay torque request (?R) is received. Based on the received steering wheel overlay torque request (?R) is provided a steering wheel overlay torque (?A) in hands-off applications limited to a safe set interval that is symmetrical around the modeled wheel self-aligning torque (ƒR).

Abstract: A hybrid vehicle includes a drive train, an electrical energy source coupled to the drive train and electrically connected to an electric energy storage device having a state-of-charge, and a non-electrical energy source coupled to the drive-train. A convexification model for the vehicle is used for determining at least one control parameter for operating the vehicle. By applying a convex approach for forming the at least one control parameter it is possible to be sure that the at least one control parameter in fact is a presently optimized parameter. Furthermore, the convex approach minimizes the computational resources necessary for determining the at least one control parameter. The use of a minimal amount of computational resources is specifically desirable in relation to a vehicle on-board solution, typically implementing real-time, continuous, calculations of the at least one control parameter. A corresponding method and computer program product are also provided.