1. A method for operating a system of a vehicle for protection of a vulnerable road user, said system comprising a remote sensor, a contact-based sensor and a pedestrian protection means, the method comprising: scanning a region in front of said vehicle by said remote sensor in order to detect a target object; if a target object is detected, classifying said target object into an object category based on information from said remote sensor; selecting a selectable fire interval of an evaluation algorithm using said object category as input; if an impact is detected by said contact-based sensor, said contact-based sensor sending information about the impact as a signal to said evaluation algorithm; said evaluation algorithm evaluating if said signal is within said selectable fire interval, and in that case activating said pedestrian protection means.