Driving Assistance Deceleration Control for Traffic Signal Misreads
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Solution Overview
Problem
Existing driving assistance systems may cause inappropriate re-acceleration of vehicles when they incorrectly recognize traffic light states, leading to unsafe driving conditions.
Innovation Solution
A driving assistance system that executes deceleration control based on the distance to a specific area, which can be in a crossing allowable or prohibited state, and only stops deceleration control when a user-provided crossing instruction is received, ensuring accurate state information and reliability thresholds are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driving assistance system automatically stops deceleration control when state information indicates a crossing allowable state, then the system responds quickly to traffic light changes, but inappropriate re-acceleration occurs when state information is incorrect
Solution Approach 1:
The system introduces feedback by continuously monitoring both state information and user operations. The processor determines whether to stop deceleration control not only based on state information indicating a crossing allowable state but also by checking whether a crossing operation has been detected from the user. This feedback loop ensures that automatic stopping only occurs when both conditions are met, preventing inappropriate re-acceleration while maintaining responsive control.
2Reliability
If the system requires user crossing operation to stop deceleration control, then safety is improved by confirming user intent, but response time increases when user input is delayed
Solution Approach 1:
The system performs preliminary action by continuously detecting user operations during the deceleration process. Rather than waiting for explicit user input after the traffic light changes, the processor monitors for crossing operations in real-time and is ready to immediately stop deceleration control when both the state information indicates a crossing allowable state and the user operation is detected. This reduces effective response time while maintaining safety requirements.
3Productivity
If the system uses automated deceleration control based on traffic light state, then driving assistance efficiency is improved, but user control is reduced
Solution Approach 1:
The system implements dynamics by making the deceleration control adaptable based on user behavior. The processor continuously evaluates whether a crossing operation has been detected and adjusts the stopping decision accordingly. When the user performs a crossing operation, the system transitions from fully automated control to user-initiated control, allowing the control mode to dynamically change based on real-time user input while maintaining overall assistance efficiency.
Data Source
AI summary
A driving assistance system includes a processor configured to cause the system to execute deceleration control according to a distance from a vehicle to a specific area which is switchable between a crossing allowable state and a crossing prohibited state, obtain state information for the specific area, obtain a crossing instruction of a vehicle user that instructs the vehicle to cross the specific area, stop the deceleration control in response to the obtaining of the crossing instruction when the state information indicates the crossing allowable state, prohibit the deceleration control from stopping until the obtaining of the crossing instruction even during the crossing allowable state, and stop the deceleration control before the obtaining of the crossing instruction when a reliability of the state information falling within an acceptable range, even during the crossing allowable state.