Swerve Assistance System with Driver Intent Detection
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Solution Overview
Problem
Existing motor vehicle safety systems fail to provide effective swerve assistance to drivers in a timely and adaptive manner, especially in situations where a collision is imminent, as they do not ensure that assistance is only provided when the driver reacts to collision-avoiding recommendations and do not account for the driver's intent and reaction time accurately.
Innovation Solution
A method and device that detect an imminent collision, notify the driver with a swerve recommendation, assess the driver's intention to swerve, and implement adaptive driver-independent steering or braking interventions based on the driver's response, adjusting the intensity and direction of assistance according to the driver's actions and reaction time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driver-independent steering or braking intervention is implemented to assist swerve maneuvers, then collision avoidance capability is improved, but the system may provide inappropriate assistance when the driver does not intend to swerve
Solution Approach 1:
The system performs preliminary detection of swerve intention before implementing driver-independent intervention. By detecting the driver's swerve intention in advance through steering angle and torque analysis, the system ensures that assistance is only provided when the driver actually intends to swerve, preventing inappropriate intervention while maintaining collision avoidance capability
Solution Approach 2:
The system continuously monitors driver steering inputs and provides feedback-based control. By analyzing the relationship between steering angle, steering torque, and their rates of change, the system adapts its intervention level based on real-time driver intent detection, ensuring assistance is provided only when needed and adjusting the magnitude appropriately
2Loss of time
If the detection threshold for swerve intention is reduced to recognize driver intent rapidly, then swerve assistance response time is improved, but false detection of swerve intention may increase
Solution Approach 1:
The system dynamically adjusts detection parameters based on the situation. By continuously evaluating multiple parameters (steering angle, steering torque, and their rates of change) and using dynamic thresholding rather than fixed thresholds, the system can rapidly detect genuine swerve intentions while filtering out false signals, balancing response time with detection accuracy
Solution Approach 2:
The system changes detection parameters adaptively based on driving conditions and detected patterns. By modifying detection thresholds and parameter weights in real-time based on the severity of the collision threat and driver behavior patterns, the system achieves rapid detection of true swerve intentions while maintaining high accuracy and minimizing false detections
3Reliability
If the intensity of driver-independent intervention is increased to ensure collision avoidance, then safety effectiveness is improved, but driver control and comfort may be degraded
Solution Approach 1:
The system applies partial intervention rather than full automatic control. By providing driver-independent steering or braking assistance that supplements rather than replaces driver input, the system achieves effective collision avoidance while maintaining driver control and comfort, avoiding the harshness of complete automation
Solution Approach 2:
The system dynamically adjusts intervention intensity based on real-time assessment of the collision threat and driver response. By continuously adapting the magnitude of steering torque or braking force applied, the system provides strong assistance when needed for safety while reducing intervention when the driver is already responding effectively, thereby maintaining driver comfort and control
Data Source
AI summary
A method for providing swerve assistance for a motor vehicle, in which a threatening or imminent collision of the motor vehicle is detected, the driver is notified to steer the vehicle onto a collision-avoiding swerve trajectory, it is detected whether the driver heeds the warning and initiates a swerve maneuver, and if the driver initiates a swerve maneuver, a driver-independent implementation of a steering or braking intervention assisting in the steering onto the swerve trajectory takes place.