Vehicle Bumper Collision Detection with Dual Pressure Sensors

The patent applies local quality by using two pressure sensors positioned at different locations within the bumper structure - one in the deformation region and one in a non-deformation region. Each sensor serves a specific local function: the first sensor detects collisions through pressure changes in the deformation region, while the second sensor provides redundancy and detects collisions in the non-deformation region. This localized sensor placement ensures comprehensive collision detection while maintaining system reliability even if one sensor fails.

The patent implements self-service by enabling each pressure sensor to independently perform collision detection without requiring complex inter-sensor coordination. The determination unit simply evaluates signals from both sensors using straightforward logic: if either sensor detects a collision (pressure change exceeding threshold), the system determines a collision has occurred. This self-service approach provides redundancy while keeping the determination circuit simple and cost-effective.

The patent applies preliminary action by pre-positioning two pressure sensors in strategically selected locations within the bumper structure before any collision occurs. The first sensor is placed in the deformation region where collision forces are concentrated, and the second sensor is placed in a non-deformation region as a backup. This preliminary sensor placement ensures that at least one sensor will reliably detect any type of collision, improving identification accuracy while maintaining fast response through simple threshold-based detection logic.