Motorcycle Steering Torque Direction Detection
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Solution Overview
Problem
Existing systems fail to reliably detect changes in direction of single-track vehicles, such as motorcycles, and effectively communicate these changes to other vehicles at risk of collision, leading to potential safety hazards.
Innovation Solution
A method that utilizes a steering torque sensor to detect changes in direction by monitoring the progression and change in steering torque, transmitting a warning signal to nearby vehicles through vehicle-to-vehicle communication, which can trigger driver assistance systems or rider alerts to mitigate collision risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If steering angle evaluation is used to detect direction changes, then the detection can be implemented with simple sensors, but the detection occurs too late to allow other vehicles to react in time
Solution Approach 1:
The system performs preliminary detection of the rider's intended direction change by monitoring steering torque before the actual direction change occurs. The steering torque sensor detects the rider's steering input intention, allowing the system to issue a warning signal to other vehicles before the motorcycle actually changes lanes, thus providing advance notice and reducing loss of time.
2Loss of time
If steering torque monitoring is implemented to detect intended direction changes early, then detection time is reduced, but the device complexity increases due to additional sensors
Solution Approach 1:
The system utilizes the steering torque sensor that is already present in most modern motorcycles for other functions (such as cruise control or traction control). By repurposing this existing sensor for direction change detection, the system avoids adding significant complexity while achieving early detection of intended direction changes.
3Reliability
If warning signals are transmitted to all nearby vehicles, then the safety coverage is maximized, but the communication bandwidth and energy consumption increase
Solution Approach 1:
The system transmits warning signals selectively only to vehicles that are in the potential collision path based on their relative position and motion. The control device calculates which vehicles require warning based on their location and trajectory, thereby providing adequate safety coverage while minimizing unnecessary communication energy consumption.
Data Source
AI summary
A method for detecting a change of direction of a single-track vehicle and transmitting information to another vehicle. In the method, the steering torque in the single-track vehicle is ascertained and a change of direction is detected if the steering torque and/or the change in the steering torque exceeds an assigned limit value, whereupon, if a change of direction is detected, a warning signal is transmitted to another vehicle the travel lane of which is intersected by the travel trajectory of the single-track vehicle.