Collision warning device having guardrail detection

A collision warning device for a motor vehicle, comprising:

• an object locating system configured to supply data regarding detected object;
• and
• a control device operationally connected to the object locating system and receiving the data from the object locating system regarding detected object, the control device having a detection module configured to detect the course of guardrails in the path of the motor vehicle with the aid of the received data from the object locating system;
• wherein the data from the object locating system are evaluated in the control device to determine whether an imminent risk of collision for the motor vehicle exists, and in the case of the imminent risk of collision exists, a first warning function is implement by outputting a first warning signal, and wherein the control device performs an additional warning function by calculating, with the aid of dynamic state characteristics of the vehicle and with the aid of the detected guardrail course, a parameter for the transverse dynamics of the vehicle required to avert a collision with the guardrails in the path of the motor vehicle, and outputting a second warning signal when the parameter for the transverse dynamics is greater than a predefined threshold value.