A drive system includes at least one electrical machine and a plurality of rotating components, which are interconnected via shafts. A method for damping torsional oscillations in the drive system includes: determining angular speeds for at least one of the shafts based on measurements in the drive system; determining a damping torque from the angular speeds with a function that models at least some of the electrical machine, the rotating components and the shafts; adapting a reference torque for the at least one electrical machine by adding the damping torque; and controlling the at least one electrical machine with the adapted reference torques.

An adaptive cruise control system for motor vehicles, including a sensor for measuring the distance to a preceding vehicle and an adaptive cruise controller for calculating control interventions into the drive system and/or braking system of the host vehicle for regulating the distance to a setpoint distance, a detuning parameter being adjustable in the adaptive cruise controller, which determines the intensity of the response of the adaptive cruise controller to control deviations, wherein a traffic jam detection module and a detuning controller which, with the detuning parameter as a manipulated variable, adjust the frequency of control interventions having an intensity above a certain minimum intensity to a setpoint frequency adapted to the traffic jam situation.

A lane centering system for use in a vehicle driving in a lane on a road includes a lane delimiter detection device having a camera with a field of view that encompasses the road ahead of the vehicle. Based on processing of captured image data, a controller determines the positions of left and right lane delimiters on the road. The controller is operable to establish a target path for the vehicle that maintains the longitudinal centerline of the vehicle generally centered between the left lane delimiter and the right lane delimiter. The controller is automatically activated to control steering the vehicle along the target path when the speed of the vehicle is at or above a first speed level. When having activated control of steering, the controller automatically deactivates control of steering when the speed of the vehicle falls to at or below a second speed level.

A method for operating a hybrid drive device, which includes a first drive unit and a second drive unit is disclosed, wherein a drive torque of the hybrid drive device is produced only by means of the first drive unit in a first operating mode and is produced jointly by the first drive unit and the second drive unit in a second operating mode, and wherein an actual rotational speed of the second drive unit is brought into line with a target rotational speed upon a switchover from the first operating mode to the second operating mode. In order to bring the actual rotational speed into line, a target rotational speed gradient is determined and a target torque determined on the basis of the target rotational speed gradient is set at the second drive unit.

A controller is provided for operating a system under admissible states. The controller includes an interface configured to connect the system storing a set of measured system states, a set of reference inputs and a set of system parameters in a storage arranged inside or outside the system, a memory storing measured system states, admissible reference inputs and admissible parameter sets and computer-executable programs including a parameter estimator and an adaptive reference governor (ARG), a processor, in connection with the memory. The processor is configured to perform the ARG and the parameter estimator. The parameter estimator extracts a pair of a reference input and the system state and compute a system parameter estimate based on the reference input and system state. The ARG is configured to update the reference input and compute a parameter-robust constraint admissible set based on the updated reference input and the system states, wherein the ARG generates and transmits a reference input to the system based on the parameter-robust constraint admissible set.

A control device for an automatic transmission includes a continuously variable transmission mechanism, a torque converter, a target transmission ratio calculation unit, a feedback control unit, and a phase compensation unit. The torque converter has a lock-up clutch. The target transmission ratio calculation unit is configured to calculate a target transmission ratio based on a travelling state. The feedback control unit is configured to perform feedback control based on an actual value indicative of a state of the continuously variable transmission mechanism. The phase compensation unit is configured to perform phase lead compensation of the feedback control based on the travelling state. The phase compensation control unit is configured to halt the phase lead compensation when an unstable travelling state of a vehicle is detected. The phase compensation control unit is further configured to release the lock-up clutch when the phase lead compensation is halted.

A steering control system includes: a deviation amount detection unit configured to detect a deviation amount of a car that travels on a track, from a reference traveling path of the car in a width direction of the track; a roll or lateral direction vibration amount detection unit configured to detect a roll or lateral direction vibration amount of the car; and a feedback control unit configured to perform feedback control of steering of the car so as to reduce the deviation amount and the roll or lateral direction vibration amount. The feedback control unit is configured to output a steering command value in which a specified frequency to be reduced is suppressed.

A lane centering system for use in a vehicle driving in a lane on a road includes a camera and a controller. Based on processing by a processor of image data captured by the camera, the controller determines position of a left lane delimiter on the road on a left side of the vehicle and position of a right lane delimiter on the road on a right side of the vehicle. The controller is operable to determine a target path for the vehicle based on processing of image data captured by the camera. The determined target path maintains the longitudinal centerline of the vehicle centered between the left lane delimiter and the right lane delimiter. The lane centering system may be enabled responsive to the vehicle speed exceeding a threshold speed, and may be disabled during a braking event of a collision mitigation system of the vehicle.

A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated fiction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a torque source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a torque source is modulated. A perceptible transmission output torque reduction during an upshift is avoided. Measured torque values are used during a torque phase of the upshift to correct an estimated oncoming friction element target torque so that transient torque disturbances at an oncoming clutch are avoided and torque transients at the output shaft are reduced.

The present disclosure relates to systems and methods capable of adaptively estimating time-to-take over during ODD exit events, by estimating the recovery time for driver and the action time required to safely handle the situation. In more detail, the proposed system allows for field monitoring for online verification (i.e., in-vehicle verification) of adaptive hand over time, and for facilitated updating of the systems predicting the hand-over time (i.e., Action Time Network and Reaction Time Network) in a decoupled manner by efficient use of data from field monitoring.