**6.10 Lane keeping assistant**

The function of a lane keeping assistant system includes the lane detection and the feedback to the driver if he is leaving a defined trajectory within the lane. Lane departure warning systems merely alert the driver when the car is leaving its lane, while lane-keeping assist actually works to keep the car from moving out of the lane. An active steering wheel can help the driver with a force feedback to keep on this trajectory. The lane is detected by a video image processing system. Additionally to the lane departure warning aspects especially regarding the infrastructure, the HMI becomes more important.

The driver gets all assistance through his touch with steering and other devices for taking decisions for the vehicular movement linking with the controller that also helps to lane keeping assistance to adhere to lane driving.

The Protocol accuracy requirements [12] for this are as under:


For the LSS (Lane support System) LKA tests, the key measurements are the distance between the outer-edge bulge of the front tires and the inside edge of the lane markings when any intervention is triggered.
