Vehicle Control via Front Wheel Angle Tracking
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Solution Overview
Problem
Current autonomous vehicle systems face challenges in predicting the future motion of nearby vehicles, especially before a change in their direction is evident, which can lead to potential collisions, as they rely on detecting shifts in the vehicle's mass rather than earlier indicators like wheel angle changes.
Innovation Solution
A control system equipped with sensors to track the orientation of a nearby vehicle's front wheel, providing data for a computing device to determine wheel angle parameters such as measured angle, change in angle, or rate of change, allowing for adjustments in vehicle direction or acceleration before the vehicle's mass shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle tracking relies on detecting shifts in vehicle mass, then collision avoidance can be achieved, but the reaction time is delayed until the vehicle has already begun to move in a new direction
Solution Approach 1:
The system performs preliminary detection by monitoring wheel angle parameters before the vehicle mass actually shifts. The sensor detects when the front wheel angle deviates from the straight-ahead position, triggering a warning or automatic steering correction before the vehicle begins to change direction, thus providing advance reaction time while maintaining collision avoidance reliability
2Loss of time
If the system monitors wheel angle parameters continuously, then early detection of vehicle movement intent is achieved, but the device complexity increases
Solution Approach 1:
The system uses an intermediary sensor to indirectly detect the driver's intent to change direction by monitoring wheel angle rather than directly tracking vehicle mass movement. This intermediary measurement approach enables early detection with simpler, more reliable sensors compared to complex mass movement detection systems
Solution Approach 2:
The system monitors changes in wheel angle parameters (angle, rate of change, acceleration) to detect driver intent. By focusing on these specific parameter changes rather than comprehensive vehicle state monitoring, the system achieves early detection with manageable computational complexity
Data Source
AI summary
A control system has at least one sensor configured to track an orientation of a front wheel of a nearby vehicle and provide data indicative of the orientation. The control system also has a computing device including a processor and a memory. The computing device is configured to receive the data from the at least one sensor, determine a wheel angle parameter of the front wheel of the nearby vehicle based on the data, and generate a control command to change at least one of a direction or an acceleration of the vehicle based on the determined wheel angle parameter.