Lane Change Safety Guidance via Multi-Speed Target Space Segmentation

The patent segments the target space in the adjacent lane into multiple sub-regions (first target space, second target space, third target space) based on different speed conditions. This segmentation allows the system to provide specific guidance for different lane-changing scenarios (constant speed, acceleration, deceleration) rather than a single general warning, thereby reducing the driver's cognitive load while maintaining collision avoidance reliability.

The system provides feedback to the driver by indicating which specific target space is available and what speed adjustment is needed. Instead of merely warning that lane-changing is unsafe, the system actively guides the driver on how to make the lane change safely by specifying the target region and required speed modification, thus reducing driver burden while ensuring safety.

The patent changes the parameter of target space definition from a single static region to multiple dynamic regions based on speed parameters. By defining target spaces associated with different speed conditions (constant, accelerated, decelerated), the system provides comprehensive guidance while using a systematic approach that manages complexity through parameter-based classification rather than ad-hoc calculations.

The system dynamically adjusts the target space selection based on the vehicle's speed and acceleration state. The targeting unit determines which target space to recommend by evaluating current motion parameters, making the system adaptive to real-time conditions. This dynamic approach manages complexity by using straightforward speed-based logic rather than complex multi-variable optimization.