Automated Braking Override for Reverse Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reverse assist systems in vehicles either fail to prevent collisions with objects behind the vehicle or restrict drivers from reversing closer to objects than intended, lacking the ability to actively manage brake application based on driver input and object distance.
Innovation Solution
An automated braking system that automatically applies brakes when a rearward object is detected, allows release upon driver input when the object is beyond a certain threshold distance, and re-applies brakes based on vehicle movement, incorporating a video camera and multi-function touchscreen for distance indication and override controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If automated braking system applies brakes automatically when object is detected, then collision prevention is improved, but driver maneuverability deteriorates
Solution Approach 1:
The braking system transitions from a static automatic braking mode to a dynamic override mode when driver input is detected. The system dynamically adjusts its behavior based on real-time driver actions, allowing manual intervention to temporarily suspend automated braking while maintaining the ability to reactivate it after a timeout period
Solution Approach 2:
The system incorporates feedback through timeout monitoring and distance monitoring. When driver override is detected, the system monitors the timeout counter and object distance, automatically reapplying brakes when the timeout expires or when the vehicle approaches the object within a safe distance, thus providing continuous feedback-based safety assurance
2Reliability
If automated braking system restricts reverse distance to maintain safety, then safety is improved, but driver flexibility deteriorates
Solution Approach 1:
The system dynamically adjusts the braking restriction based on driver input and real-time conditions. When the driver activates the override function, the system dynamically permits reverse movement beyond the normal safety threshold, adapting the safety constraints to accommodate legitimate driver needs while maintaining safety through timeout and distance monitoring
Solution Approach 2:
The system changes the operational parameters of the braking system based on driver input. The brake application threshold distance parameter is dynamically modified during override mode, allowing the vehicle to reverse closer to objects when the driver intentionally requests extended maneuvering capability
3Measurement precision
If automated braking system continuously monitors object distance, then collision detection accuracy is improved, but system complexity deteriorates
Solution Approach 1:
The existing automated braking sensor system serves multiple functions: it detects objects for automatic braking activation, continuously monitors object distance for safety assurance during override mode, and provides input for the timeout-based automatic reapplication logic. This multi-functionality reduces the need for separate dedicated monitoring systems
Data Source
AI summary
A vehicle includes a vehicle-driver interface and an automated braking system. The automated braking system is configured to automatically apply vehicle brakes in response to a detected rearward object and the vehicle being in REVERSE. The automated braking system is additionally configured to release the brakes in response to a driver input at the vehicle-driver interface when a distance from the vehicle to the rearward object exceeds a calibratable threshold. The automated braking system is further configured to apply the brakes in response to the vehicle traveling a predefined distance after the driver input.