1. An apparatus for triggering a personal protection device, comprising: a surroundings sensor suite; a contact sensor suite; a pre-crash system having a pre-crash algorithm that takes into account signals from the surroundings sensor suite for triggering an occupant protection arrangement; a pedestrian protection system having a pedestrian protection algorithm that takes into account signals from the contact sensor suite for triggering a pedestrian protection arrangement; and at least one arrangement for influencing the pedestrian protection algorithm as a function of a first signal of the surroundings sensor suite, for influencing the pre-crash algorithm as a function of a second signal of the pedestrian protection algorithm that takes into account a third signal of the contact sensor suite, and for triggering the personal protection device as a function of a fourth signal of the pedestrian protection algorithm and a fifth signal of the pre-crash algorithm; wherein the personal protection device includes at least one of the occupant protection arrangement and the pedestrian protection arrangement.