Automated Driving System Wobbling Alert for Driver Attention
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Solution Overview
Problem
Current autonomous driving systems lack effective means to notify drivers of the need for manual control, with existing warnings often being insufficient, overbearing, or distracting, posing safety risks due to inadequate attention gain.
Innovation Solution
An automated driving system that uses a path planner application to determine if performance thresholds are met, initiating a temporary and irregular full vehicle movement, such as side-to-side wobbling, to alert the driver when sensor information is insufficient, ensuring timely and non-intrusive notification for manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional warning methods (haptic feedback, textual warnings, audible warnings) are used to alert the driver, then the driver may be notified of the need for manual control, but the warnings may be insufficient to gain driver attention or may be overbearing and distracting
Solution Approach 1:
The patent applies mechanical vibration by initiating temporary and irregular full vehicle movements (such as side-to-side wobbling) to alert the driver. This physical vibration of the entire vehicle creates a noticeable sensation that reliably gains driver attention without being overbearing or distracting like traditional warning methods.
Solution Approach 2:
The system dynamically adjusts the vehicle's motion state by introducing temporary irregular movements when sensor information becomes insufficient. This dynamic approach allows the vehicle to actively communicate its status to the driver through motion changes rather than passive warnings, improving reliability of attention gain while avoiding constant distracting alerts.
2Reliability
If the automated driving system continuously monitors sensor information to ensure safety, then the system can detect when manual intervention is needed, but the system complexity increases
Solution Approach 1:
The patent implements feedback by continuously monitoring sensor information quality and comparing it against performance thresholds. When the path planner application determines that sensor information is insufficient to meet the threshold performance level, the system provides feedback by initiating vehicle movements to alert the driver, creating a closed-loop safety monitoring system that manages complexity through structured decision-making.
Solution Approach 2:
The system monitors changes in sensor information quality parameters and triggers manual intervention when thresholds are breached. By focusing on specific measurable parameters (sensor information sufficiency, performance level thresholds) rather than comprehensive system monitoring, the patent achieves reliable safety monitoring with controlled system complexity.
Data Source
AI summary
A computer-implemented method for the automated driving of a vehicle. The method may include coordinating a planned vehicle path using a path planner application. The path planner application may receive information based on inputs to sensors disposed on the vehicle. The method may include sending a command to one or more vehicle systems to control the vehicle to follow the planned vehicle path. While the vehicle follows the planned vehicle path, the method may include receiving an indication that the path planner application is not meeting a threshold performance level. After receiving the indication that the path planner application is not meeting the threshold performance level, a command is sent to one or more vehicle systems to control the vehicle to follow a temporary and irregular full vehicle movement to alert a vehicle driver. The temporary and irregular full vehicle movement may be a full vehicle side-to-side wobbling movement.