Vehicle Drive Assist Arbitration for Conflicting Control Signals
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Solution Overview
Problem
Existing driving assistance systems face interference and reduced effectiveness when multiple types of assistance, such as collision avoidance and lane keeping, are performed simultaneously, leading to discomfort for the driver due to conflicting vehicle states and turning directions.
Innovation Solution
A driving assistance apparatus and method that includes a collision avoidance assisting section and an assistance arbitration section to manage and arbitrate between different types of driving assistance, prioritizing collision avoidance and suppressing conflicting assistance to maintain appropriate vehicle states and prevent alternating turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of driving assistance (collision avoidance and lane keeping) are performed simultaneously, then the vehicle can provide comprehensive safety and lane maintenance functions, but the assistance effectiveness decreases and driver discomfort increases due to conflicting vehicle states and turning directions
Solution Approach 1:
An arbitration section is introduced as an intermediary component that receives control amounts from both the collision avoidance assisting section and the lane keeping assisting section. The arbitration section determines which assistance to prioritize based on current vehicle conditions, thereby resolving conflicts between multiple assistance types and preventing driver discomfort while maintaining comprehensive safety functions
Solution Approach 2:
The system performs preliminary determination of assistance priority before executing control actions. The arbitration section evaluates the necessity and urgency of each assistance type in advance, selecting the most critical assistance to execute first, which prevents conflicting vehicle states and maintains assistance effectiveness
2Adaptability or versatility
If multiple types of driving assistance are performed simultaneously, then the vehicle can provide comprehensive safety and lane maintenance functions, but driver discomfort increases due to alternating turns and conflicting vehicle states
Solution Approach 1:
The arbitration section acts as a mediator that filters and sequences control commands before they reach the vehicle's steering and braking systems. By arbitrating between collision avoidance and lane keeping assistance, it prevents alternating turns and conflicting vehicle states that would cause driver discomfort, while still allowing comprehensive safety functions to operate
Solution Approach 2:
The arbitration section performs preliminary anti-action by suppressing non-critical assistance when collision avoidance is determined to be necessary. This prevents the harmful effect of conflicting vehicle states and alternating turns before they can occur, thereby maintaining driver comfort while preserving comprehensive safety capabilities
Data Source
AI summary
A driving assisting section includes a collision avoidance assisting section, which performs collision avoidance assistance for avoiding collision between a vehicle to be assisted and an object by prompting turning of the vehicle. The driving assisting section further includes a lane-keeping assisting section, which performs lane keeping assistance. An assist arbitrating section arbitrates between the collision avoidance assistance by the collision avoidance assisting section and the lane keeping assistance by the lane-keeping assisting section.