Steering Assistance Control Device for Intentional Lane Offset
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Solution Overview
Problem
Conventional vehicular steering assistance control devices increase driver burden when attempting to intentionally offset from the center of a traffic lane, as they often generate steering torque counter to the driver's intention, and releasing control reduces assistance, degrading convenience.
Innovation Solution
A vehicular steering assistance control device that detects and accommodates the driver's intentional offset by adjusting the goal position of steering assistance to either side, using algorithms and sensors to calculate and apply appropriate steering torque, reducing driver fatigue and maintaining assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the steering assistance control device generates steering torque to return to the middle of the traffic lane, then the vehicle maintains lane centering, but the driver burden increases when the driver intentionally offsets from the center
Solution Approach 1:
The goal lateral position is dynamically adjusted based on detected driver steering intentions. When the driver intentionally steers to offset from the lane center, the system updates the target position to follow the driver's intended path, allowing the vehicle to adapt its lane centering goal in real-time rather than rigidly maintaining the geometric center
Solution Approach 2:
The system continuously monitors driver steering inputs (steering angle, steering angle velocity, steering torque) and uses this feedback to determine when the driver intends to offset from the lane center. This feedback loop allows the control device to distinguish between corrective steering and intentional positioning, adjusting the goal position accordingly
2Ease of operation
If the steering assistance control is released to prevent driver burden, then the driver has freedom of maneuver, but the assistance control cannot be received, degrading convenience
Solution Approach 1:
The system changes the control parameter (goal lateral position) based on driver intention detection. Instead of releasing control entirely, it adjusts the target position parameter to accommodate intentional offsetting, maintaining assistance control while adapting to driver preferences
3Measurement precision
If the steering assistance control device detects driver intervention using threshold values, then the system can identify driver input, but it cannot distinguish between intentional offsetting and corrective steering
Solution Approach 1:
The system performs preliminary analysis of steering parameters (angle, velocity, torque) to predict driver intention before the actual positioning is complete. By evaluating the pattern and magnitude of steering inputs in advance, the system can anticipate whether the driver intends to offset from the lane center or is merely correcting position
Data Source
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AI summary
The purpose of the present invention is to obtain assistance for traveling in an appropriate position, through steering assistance control, when a driver intends to travel in a position offset either to the left or to the right from the center of a traffic lane. Provided is a vehicular steering assistance control device for controlling a host vehicle so that the vehicle travels in a predetermined position of a traffic lane, wherein the amount of steering control is adjusted according to the driver's intentions.