Lane Changing Assistance Radar Camera Integration
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Solution Overview
Problem
Existing vehicle lane changing assistance systems are inadequate in detecting vehicles approaching from a distance at high speeds, leading to insufficient reaction time for drivers and increased accident risks, particularly in complex driving conditions.
Innovation Solution
A lane changing assistance system that utilizes a combination of cameras and radars to monitor adjacent lanes, providing real-time data on vehicle presence, distance, and speed, and applies a counteracting steering torque to prevent dangerous lane changes by actively intervening in the steering system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera-based monitoring system is used to detect vehicles in adjacent lanes, then the system structure is simple and cost-effective, but the detection range is limited to the length of the vehicle and cannot detect high-speed approaching vehicles from long distances
Solution Approach 1:
The patent combines radar and camera systems into an integrated monitoring system. The radar provides long-range detection capability to detect high-speed approaching vehicles, while the camera provides detailed visual information. This merging resolves the contradiction by achieving extended detection range through radar while maintaining system feasibility through integrated design.
Solution Approach 2:
The monitoring system is designed to perform multiple functions: the radar detects distant vehicles and measures their speed, while the camera captures visual data for identification and tracking. This multi-functional approach allows the system to detect vehicles at various distances and provide comprehensive information, resolving the limitation of single-function camera systems.
2Loss of time
If the detection range is extended to detect vehicles from long distances, then the reaction time for drivers is improved, but the system complexity and cost increase
Solution Approach 1:
The radar system continuously monitors adjacent lanes for approaching vehicles at long distances before they become a threat. This preliminary detection provides early warning to the driver, extending reaction time. The system performs the detection action in advance, allowing the driver sufficient time to respond to potential hazards.
Solution Approach 2:
The radar acts as an intermediary sensor that extends the system's detection capability beyond what the camera alone can achieve. It provides intermediate-range detection data that bridges the gap between close-proximity camera detection and far-distance vehicle approach, enabling early warning while maintaining manageable system complexity.
3Reliability
If active steering torque is applied to prevent dangerous lane changes, then driving safety is improved, but the driver's operational freedom is reduced
Solution Approach 1:
The system applies counteracting steering torque to prevent dangerous lane changes before the collision occurs. When the monitoring system detects a vehicle in the adjacent lane that would be collided with during a lane change, it applies torque to the steering system to counteract the driver's steering input, thereby preventing the dangerous maneuver and improving safety.
Solution Approach 2:
The system continuously monitors the driving environment and provides feedback through steering torque application. When a dangerous situation is detected, the system feeds back a counteracting torque to the steering system, creating a closed-loop control that balances safety intervention with driver intent. The system adjusts the torque based on the detected threat level and driver steering inputs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances driver safety by effectively preventing accidents by providing timely warnings and interventions, even in adverse weather and lighting conditions, and improving lateral monitoring beyond the limitations of traditional camera-based systems.
Implementation Method 1
A lane changing assistance system that utilizes a combination of cameras and radars to monitor adjacent lanes, providing real-time data on vehicle presence, distance, and speed
Implementation Method 2
A lane changing assistance system that utilizes a combination of cameras and radars to monitor adjacent lanes
Implementation Method 3
applies a counteracting steering torque to prevent dangerous lane changes by actively intervening in the steering system
Data Source
Figure 1.1~1.6
Figure 2.1~2.2
Figure 3.1~3.2
AI summary
This invention relates to a lane changing assistance method for controlling a vehicle driving aid system for lane changing assistance, the aid system comprising a radar for controlling the lanes adjacent to that onto which the vehicle is travelling, which intervenes by applying an active steering torque to the vehicle or by providing appropriate warning signals.