Vehicle Backup Control Module for Obstructed Sensor Safety
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Solution Overview
Problem
Current vehicle backup assistance systems face limitations when backup sensors are obstructed by objects, reducing their field of view and making it difficult for drivers to detect nearby obstacles, potentially leading to collisions.
Innovation Solution
A backup assistance system that includes a control module to restrict vehicle backup speed, acceleration, and jerk when the sensors' field of view is restricted, providing alerts and automatically stopping the vehicle to allow the driver to check for obstacles once the obstruction is cleared.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle operates at normal backup speed when sensors are obstructed, then the backup operation efficiency is maintained, but the collision risk increases due to reduced detection capability
Solution Approach 1:
The system dynamically adjusts backup speed, acceleration, and jerk based on real-time sensor field of view conditions. When obstruction is detected, the control module automatically reduces these parameters to safe levels, and restores them when the field of view is clear, allowing adaptive response to changing environmental conditions
Solution Approach 2:
The system continuously monitors sensor field of view status and provides feedback to the control module, which then adjusts vehicle movement parameters accordingly. This closed-loop control ensures that speed restrictions are applied only when necessary (when sensors are obstructed) and removed when safe to proceed
2Reliability
If the backup speed is restricted when sensors are obstructed, then the collision risk is reduced, but the backup operation time increases
Solution Approach 1:
The system applies speed restrictions only partially - specifically when and where needed (when sensor field of view is obstructed). When the field of view is clear, normal speed is restored, minimizing the overall time loss while maintaining safety during critical obstruction periods
3Productivity
If the vehicle allows normal acceleration and jerk during backup, then the maneuver efficiency is maintained, but the vehicle stability deteriorates when sensors cannot detect obstacles
Solution Approach 1:
The control module dynamically adjusts acceleration and jerk parameters based on sensor field of view status. When obstruction is detected, these parameters are restricted to prevent unstable or unsafe maneuvers, and restored to normal levels when the field of view is clear, maintaining both stability and efficiency as conditions permit
Data Source
AI summary
A backup assistance system for a vehicle. The system includes a backup control module configured to restrict at least one of vehicle backup speed, acceleration, and jerk when a field of view of one or more backup sensors is restricted.