Patent ID: 7162345

Claim:
A vehicle accident analyzing apparatus comprising a crash parameter determination apparatus for determining crash parameters of a vehicle based on input signals from sensors mounted in the vehicle, the crash parameter determination apparatus comprising: a triggering unit for generating a trigger signal if the input signals indicate a crash situation of the vehicle; an area determination unit for generating a most probable impact area of the vehicle based on the input signals in response to the trigger signal; and a parameter calculation unit for calculating the crash parameters based on the input signals and the most probable impact area, the triggering unit comprising: a level determination unit for determining levels of the input signals with predefined thresholds; a timer operated in response to a determination result of the level determination unit; a time determination unit for comparing operating time of the timer with predetermined duration time; and logical operators for generating the trigger signal by combining respective determination results of the level determination unit and the time determination unit, wherein the trigger signal enables processes of the area determination unit and the parameter calculation unit to be started; the area determination unit comprises an area classification and assignment unit and an area counter triggered by the trigger signal; the area classification and assignment unit determines the most probable impact location of the vehicle to classify the impact area in every time instant; the area counter detects the most probable impact area by individually counting the impact area which has been classified in every time instant by the area classification and assignment unit; and the parameter calculation unit calculates an impact location of the vehicle and an impact force of a crash opponent, and calculates an impact angle based on a principle direction of the impact force applied to the impact location.