Multi-Sensor Lane Change Assistance for Driver Intent Detection
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Solution Overview
Problem
Advanced Driver Assistance Systems (ADAS) do not sufficiently reflect a driver's intent and limit safe autonomous lane changes due to various unexpected traffic conditions.
Innovation Solution
A driver assistance system that includes multiple sensors (front, side, and rear) and a controller to detect steering intent through turn signal lamps, process image and detection data, and output steering or warning signals to facilitate safe lane changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are used to detect side and rear objects, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensor types (cameras, radar, LiDAR) into an integrated sensing system that shares common processing resources and control logic, allowing the system to achieve high measurement precision through sensor fusion while managing device complexity through unified architecture
Solution Approach 2:
The controller is designed to process data from multiple different sensor types using the same processing algorithms and decision-making logic, enabling a single processing unit to handle diverse sensor inputs and perform multiple detection functions simultaneously
2Reliability
If the system processes data from multiple sensors to detect objects, then reliability is improved, but use of energy increases
Solution Approach 1:
The system performs sensor data processing and object detection at specific intervals triggered by turn signal activation rather than continuously, reducing energy consumption while maintaining reliability by ensuring detection occurs at critical moments when lane change intent is expressed
Solution Approach 2:
The system activates full multi-sensor processing only when turn signal lamps are detected, performing preliminary filtering that ignores periods when no lane change intent is present, thereby reducing overall energy usage while maintaining high reliability during critical detection periods
3Ease of operation
If the system detects turn signal lamps to identify steering intent, then ease of operation is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The system uses the vehicle's own turn signal lamp signals, which are already present in the vehicle's electrical system, to detect driver intent. This self-service approach leverages existing vehicle components rather than requiring additional external detection devices, simplifying the overall system while improving ease of operation
Data Source
AI summary
A driver assistance system includes a first sensor installed in a vehicle to have a front view of a vehicle, and configured to obtain front image data; a second sensor installed in the vehicle to have a front detection field of view of the vehicle and selected from a group consisting of a radar sensor and a LiDAR sensor, configured to obtain front detection data; a third sensor installed in the vehicle to have a side detection field of view of the vehicle and selected from a group consisting of the radar sensor and the LiDAR sensor, and configured to obtain side detection data; and a controller including a processor configured to process at least one of the front image data, the front detection data, and the side detection data.