Driver Assistance System Autonomous Lane Correction
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Solution Overview
Problem
Existing driver assistance systems often intervene too late to prevent collisions, and restricting steering when leaving the road can increase the risk of further accidents by limiting the vehicle's ability to return to the lane safely.
Innovation Solution
A driver assistance system that temporarily switches to an autonomous mode when a high probability of lane departure is detected, allowing the vehicle to be steered back onto the road without driver intervention, using a combination of sensors and data to determine a safe target position and control trajectory, and then returns control to the driver when safe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver assistance system restricts steering angles to prevent excessive steering when leaving the roadway, then collision risk is reduced, but the driver's ability to react optimally and return the vehicle to the road is limited
Solution Approach 1:
The system performs preliminary action by detecting lane departure early and activating autonomous steering mode before the driver can make a harmful steering input. The system proactively corrects the lane departure by autonomously steering the vehicle back to the lane, preventing the need for the driver to make sharp corrective maneuvers that could cause skidding or veering into oncoming traffic.
2Reliability
If the driver assistance system intervenes in driving situations when the driver reacts incorrectly, then safety is improved, but the driver loses control and driving options are limited
Solution Approach 1:
The system applies dynamics by dynamically switching between operating modes based on the detected situation. In normal conditions, the driver maintains full control in the first operating mode. When lane departure is detected, the system transitions to the second operating mode where the driver assistance system autonomously steers the vehicle. After successful correction, the system transitions back to the first mode, restoring driver control. This dynamic adaptation resolves the contradiction by temporarily limiting driver control only when necessary for safety.
Solution Approach 2:
The system uses feedback by continuously monitoring the vehicle's position relative to the lane and the driver's steering inputs. When the system detects that the vehicle is leaving the lane and the driver is making incorrect steering attempts, it provides feedback by activating the autonomous steering mode to correct the deviation. The system monitors the correction process and provides feedback to the driver through notifications, allowing the driver to understand when the system is intervening and when control is returned.
3Ease of operation
If the driver assistance system allows full driver freedom in normal driving, then ease of operation is maintained, but the system cannot prevent harmful steering actions when the vehicle leaves the roadway
Solution Approach 1:
The system performs preliminary action by detecting lane departure early and activating autonomous steering mode before the driver can make a harmful steering input. The system proactively corrects the lane departure by autonomously steering the vehicle back to the lane, preventing the need for the driver to make sharp corrective maneuvers that could cause skidding or veering into oncoming traffic.
Data Source
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AI summary
Motor vehicle comprising at least one driver assistance system (2), wherein the motor vehicle (1) is controllable by a driver in a first operating mode of the driver assistance system (2), wherein the driver assistance system (2) is designed to switch temporarily to a second operating mode in the event of a future departure from the roadway (21, 27, 33, 40, 47) determined by evaluation of ego data relating to the motor vehicle (1) and/or environmental data relating to the motor vehicle environment with a probability exceeding a predetermined minimum probability, and/or in the event of a departure from the roadway (21, 27, 33, 40, 47), in which the steering of the motor vehicle (1) is carried out autonomously by the driver assistance system (2) without the possibility of intervention by the driver.