Rear-Side Collision Warning Area Switching for Trailer Towing
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Solution Overview
Problem
Existing rear side warning systems for vehicles erroneously operate when a trailer is connected, due to the trailer's movement affecting the predetermined boundary line for collision detection, leading to incorrect warning operations.
Innovation Solution
A vehicle control system that includes image sensors and non-image sensors to capture data, a processor to process this data, and a controller that adjusts the rear side warning determination reference area based on a trailer mounting signal, setting multiple reference areas to accurately detect obstacles and prevent erroneous warnings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed predetermined boundary line is used for collision detection, then the system structure is simple, but the system erroneously operates when a trailer is connected
Solution Approach 1:
The patent applies the dynamics principle by making the rear side warning determination reference area configurable and changeable based on whether a trailer is connected. The control unit dynamically adjusts the reference area boundaries - using a first reference area when no trailer is connected and a second reference area when a trailer is connected. This resolves the contradiction by allowing the system to adapt its detection parameters to different operational conditions, thereby maintaining reliability without requiring a completely complex multi-system architecture.
Solution Approach 2:
The patent implements parameter changes by modifying the geometric parameters of the reference area based on trailer connection status. The control unit changes the boundary coordinates and coverage area of the collision detection zone according to the detected trailer presence. This allows the same hardware to maintain high reliability across different configurations by simply changing the detection parameters rather than requiring different physical systems.
2Measurement precision
If the rear side warning determination reference area is changed based on trailer mounting, then warning accuracy is improved, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple reference area patterns (first reference area for normal operation, second reference area for trailer operation) in advance. The control unit stores these different boundary configurations and automatically selects the appropriate one based on trailer detection status. This eliminates the need for complex real-time calculations during operation, as the precise measurement is achieved through pre-computed reference areas that are simply switched between based on conditions.
3Reliability
If multiple reference areas are set for different trailer configurations, then detection reliability is improved, but the system becomes more complex
Solution Approach 1:
The patent implements universality by designing a single rear side warning system that can perform multiple functions - detecting obstacles both with and without a trailer attached. The control unit universally handles both operational modes by selecting from pre-configured reference areas, making one system serve multiple purposes. This resolves the contradiction by showing that a universal system design can maintain reliability across different scenarios without requiring separate specialized systems for each case.
Data Source
AI summary
Provided is a vehicle control system, a vehicle control method, and an image sensor, the vehicle control system including: an image sensor disposed on the vehicle to have a field of view of an outside of the vehicle to capture image data; at least one non-image sensor disposed on the vehicle to have a field of sensing of the outside of the vehicle to capture sensing data; at least one processor configured to process the image data captured by the image sensor and the sensing data captured by the non-image sensor; and a controller configured to determine a chance of a collision with an obstacle with respect to a rear side warning determination reference area that is changed depending on whether a trailer is mounted on the vehicle, on the basis of at least part of processing at least one of the image data and the sensing data.