Vehicle Light Distribution Control for Collision Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving assistance systems face challenges in maintaining object detection and collision avoidance control when switching from high beam to low beam during a collision avoidance operation, leading to potential loss of target object sight and compromised safety.
Innovation Solution
A driving assistance apparatus that includes an object detecting unit, an avoidance control unit, and a light distribution control unit, which suppresses the switching from high beam to low beam during collision avoidance operations to maintain continuous detection of the target object, ensuring that the irradiated light remains at the high beam state until the collision is avoided.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the irradiation apparatus switches from high beam to low beam during collision avoidance control, then the light distribution adapts to normal driving conditions, but the object detection capability deteriorates and collision avoidance control reliability is compromised
Solution Approach 1:
The system applies preliminary anti-action by detecting the start of collision avoidance control and proactively preventing the beam switching that would cause harm. The control unit identifies when collision avoidance control is active and suppresses the high beam to low beam switching signal, thereby preemptively avoiding the deterioration of object detection capability and maintaining system reliability throughout the avoidance maneuver.
2Reliability
If the irradiation apparatus maintains high beam during collision avoidance control, then the object detection capability is maintained, but the light distribution cannot adapt to normal driving conditions
Solution Approach 1:
The system applies dynamics by creating a time-dependent, state-dependent light distribution control strategy. The beam switching behavior dynamically adapts based on the collision avoidance control state: during active avoidance control, high beam is maintained for optimal detection; after avoidance control ends, the system transitions to normal adaptive switching. This dynamic adjustment resolves the contradiction by allowing the system to optimize for detection when needed while maintaining adaptability for normal conditions.
3Stability of the object's composition
If the switching control is suppressed during collision avoidance, then the object sight is maintained continuously, but the switching control system complexity increases
Solution Approach 1:
The system merges the collision avoidance control function with the light distribution control function by integrating the beam switching suppression logic into the existing avoidance control unit. Rather than adding a separate independent control system, the avoidance control unit is enhanced to also manage beam switching based on the collision avoidance state, thereby maintaining object sight continuity while minimizing additional system complexity.
Data Source
AI summary
In a driving assistance apparatus, an object detecting unit detects an object that is present in a periphery of an own vehicle based on an image captured by an imaging apparatus provided in the own vehicle. An avoidance control unit performs collision avoidance control for avoiding a collision between the detected object and the own vehicle when a collision between the object and the own vehicle is likely. A light distribution control unit switches irradiated light of an irradiation apparatus provided in the own vehicle between high beam and low beam based on a predetermined switching condition. The light distribution control unit performs switching suppression control to suppress switching of the irradiated light from high beam to low beam while the avoidance control unit is performing collision avoidance control in a case where the irradiated light is set to high beam.