Impact Severity is an index used to assess the degree of damage caused by the impact of a tested system based on the results of the various parameters.
The index is divided into three classes: A, B and C and describes the impact the car's passengers are exposed to on impact. Class A provides the highest level of safety for passengers.
Impact Severity is calculated by the two components: Acceleration Severity Index and Theoretical Head Impact Velocity.
Acceleration Severity Index og Theoretical Head Impact Velocity
The Acceleration Severity Index (ASI) is probably the main parameter for calculating Impact Severity and is calculated by placing an accelerometer in the centre of the vehicle’s mass and measuring the force at the vehicle’s collision with the system. The ASI is calculated throughout the collision time and its maximum value is used to evaluate the severity of the collision.