Vehicle Sensor Calibration via Ground Inclination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Installation tolerances during the mounting of sensor systems in vehicles can lead to inadmissible errors in sensor signal quality, affecting the performance of driver assistance and driving safety systems, which require high signal quality for accurate operation.
Innovation Solution
A method for calibrating sensors installed in vehicles, which detects and compensates for position deviations caused by installation tolerances through an automatic calibration process triggered after the vehicle's production process, using sensor signals generated based on the vehicle's inclination and position, allowing for accurate compensation of offsets and improved signal quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is installed with high precision to avoid errors, then the signal quality is improved, but the installation complexity and time increase
Solution Approach 1:
The calibration process is performed preliminarily during or after vehicle assembly before the vehicle is delivered to the customer. This preliminary calibration action compensates for installation tolerances in advance, eliminating the need for highly precise manual installation while ensuring signal quality from the outset.
Solution Approach 2:
The system performs self-calibration using automatically generated triggering signals and sensor data processing. The calibration process is autonomous, requiring minimal human intervention, and automatically compensates for installation deviations without requiring expert manual adjustment.
2Measurement precision
If the sensor is installed with high precision, then the signal quality is improved, but the production time increases
Solution Approach 1:
The calibration is performed as a preliminary automated process during the production line operation or immediately after assembly. By integrating this quick automated calibration into the production flow, the system achieves high signal quality without requiring time-consuming manual precision installation or post-production adjustments.
Solution Approach 2:
The manual mechanical precision installation process is replaced with an automated electronic calibration system. The calibration uses software-based offset determination and compensation algorithms that process sensor data automatically, replacing the need for time-consuming mechanical adjustment and precision positioning.
3Measurement precision
If manual calibration is performed to compensate for installation tolerances, then the signal quality is improved, but the calibration complexity increases
Solution Approach 1:
The calibration system is fully autonomous and self-service oriented. Triggering signals are generated automatically based on vehicle state conditions, and the calibration algorithm autonomously processes sensor data to determine offsets and apply compensations without requiring manual calibration operations or complex user procedures.
Solution Approach 2:
The calibration process automatically adjusts sensor signal parameters by determining offset values from sensor data and applying compensations. The system dynamically changes signal parameters based on detected installation tolerances, using automated parameter optimization rather than manual calibration procedures.
4Measurement precision
If calibration is integrated into the production process, then the signal quality is improved, but the production process complexity increases
Solution Approach 1:
The calibration is performed as a preliminary automated step that can be executed during production line operations or immediately after assembly. By positioning the calibration as a preliminary automated action rather than integrating it deeply into complex production workflows, the system improves signal quality while maintaining production process simplicity.
Data Source
AI summary
In a method for calibrating a sensor installed in a vehicle, a triggering signal for the calibration is automatically generated subsequent to the vehicle production process, during which calibration sensor signals are calibrated as a function of the inclination of the ground on which the vehicle is located.