Trailer Detection via Radar Velocity and Distance Matching

The patent applies parameter changes by utilizing multiple detection parameters (velocity, distance, position) simultaneously to distinguish trailers from other objects. The system changes the detection approach from single-parameter to multi-parameter analysis, where the trailer is identified by the specific combination of matching velocity with the host vehicle, maintaining constant distance, and occupying specific spatial zones. This multi-parameter approach resolves the contradiction by improving both measurement precision and reliability through comprehensive parameter evaluation.

The patent implements universality by designing a detection system that serves multiple functions: it detects trailer presence, provides data for stability control, and enables driver assistance features. The same radar-based detection unit and processing algorithm are used across different safety and control functions, eliminating the need for separate specialized systems. This multi-functional approach maintains relatively low system complexity while delivering reliable information for stability control and other safety applications.

The patent applies partial action by implementing a tiered detection approach where velocity and distance criteria are applied selectively. The system first checks basic presence detection, then applies velocity matching and constant distance maintenance criteria only when potential trailer objects are identified in specific zones. This partial application of complex criteria maintains high identification accuracy while avoiding unnecessary computational complexity for all detection scenarios, thus resolving the contradiction between precision and algorithm complexity.