Vehicle Bumper Radar Correction Using Dynamic Shape Updates
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Solution Overview
Problem
Radar signals can become distorted due to deformation of a vehicle's bumper, leading to inaccurate information about surrounding objects, which is a challenge for accurate implementation of driver assistance systems in autonomous driving.
Innovation Solution
A radar signal correction device and method that determines the driving state of a vehicle, obtains lane and bumper shape information, sets a moving target, and calculates a correction angle to update bumper shape information based on the location of the moving target and radar mounting, thereby correcting radar signal distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radar is installed inside the front and rear bumpers of a vehicle, then the radar can obtain information about surrounding objects, but the radar signal may become distorted due to deformation of the bumper
Solution Approach 1:
The system dynamically changes the bumper shape parameters based on detected target positions and driving conditions. By adjusting the bumper shape to different configurations (straight, convex, concave) according to the detected lane and target location, the system optimizes radar signal transmission while maintaining protective function.
Solution Approach 2:
The bumper is designed with dynamic adjustability, allowing it to change shape in real-time based on driving conditions. The controller receives driving information and target detection results, then actuates the bumper to appropriate shapes, transforming the static bumper into a dynamic component that adapts to different operational requirements.
2Measurement precision
If the bumper shape is updated frequently to correct radar signal distortion, then the accuracy of target detection improves, but the complexity of the control system increases
Solution Approach 1:
The system uses the detected target information and driving state data to automatically determine the appropriate bumper shape without requiring manual intervention or complex external control. The controller self-adjusts the bumper configuration based on the processed detection results, making the system self-regulating and reducing overall complexity.
Solution Approach 2:
The system implements a feedback loop where target detection results and driving information are continuously monitored, and the bumper shape is adjusted accordingly. The controller receives feedback from the detection system and modifies the bumper configuration to optimize radar signal transmission, creating a closed-loop control system that automatically maintains detection accuracy.
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
Enables accurate correction of radar signal distortion caused by bumper deformation, ensuring reliable information for autonomous driving systems by enhancing the accuracy of target detection and lane alignment.
Implementation Method 1
a reflection signal obtained as a radar signal emitted from a radar mounted to the vehicle is reflected by a target
Data Source
AI summary
The present embodiments relate to a radar signal correction device and method capable of correcting distortion of a radar signal due to deformation of a bumper using moving object.