APPARATUS AND METHOD FOR COLLISION AVOIDANCE ASSISTANCE

Smart overview of the Invention

A collision avoidance assistance device uses data from a front-side LiDAR sensor and a front camera to assess the risk of colliding with structures like guardrails on the driving path. The device is designed to enhance braking control when a potential collision is detected, ensuring safer vehicle operation.

Technical Features

The device includes several components: a target point selector that identifies relevant points within the vehicle's width, an intersection point calculator that finds intersection points between contour lines from the LiDAR and the vehicle's edges, and an overlap calculator that measures how much the vehicle overlaps with detected structures. A path closure determiner then evaluates how blocked the vehicle's path is by these structures.

Determining Collision Risk

The device assesses collision risk by analyzing the degree of overlap and closure of the driving path. If a structure completely blocks the path, it triggers appropriate braking measures. Conversely, if only part of the path is obstructed, it considers factors like lateral offset and driver actions to determine whether braking is necessary and when it should occur.

Control Timing Considerations

The control timing determiner plays a crucial role in deciding when to engage braking based on various parameters, including the vehicle's state, driver behavior, and road conditions. It can adjust braking timing if there’s an avoidable space in the lane or if the driver is actively steering or braking.

Methodology for Collision Avoidance

The method involves several steps: selecting target points from LiDAR data, calculating intersection points, assessing overlap with structures, determining path closure, and finally deciding on braking control timing. Each step incorporates calculations based on vehicle dynamics and environmental factors to optimize safety during driving.