Vehicle Sensor Mounting Recognition Through Misalignment Testing
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Solution Overview
Problem
Existing sensor technologies for motor vehicles face challenges in efficiently determining and adapting to different installation configurations, leading to potential misalignment issues that affect their performance, particularly when identical sensors are installed in various positions or configurations.
Innovation Solution
A method for determining the actual installation configuration of a sensor by interpreting measurement data from multiple potential configurations, allowing the sensor to recognize and correct misalignment, thereby enabling operation in any of the designed configurations through repeated measurement and data interpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If identical sensors are installed in different installation configurations, then component variety is reduced and spare parts management is simplified, but determining the correct installation configuration becomes more complex
Solution Approach 1:
The sensor performs self-testing and self-identification by automatically comparing its own measurement data against expected patterns for different installation configurations. The sensor independently determines which configuration it is installed in without requiring external calibration equipment or manual configuration input.
Solution Approach 2:
The system changes the interpretation parameters of measurement data based on the determined installation configuration. By adjusting how measurement values are evaluated according to the identified configuration, the same sensor can accurately operate in multiple installation positions and orientations.
2Measurement precision
If measurement data are interpreted based on an incorrect installation configuration, then configuration identification can be performed, but misalignment determination becomes inaccurate
Solution Approach 1:
Instead of assuming a configuration and checking for misalignment, the method inverts the approach by testing which configuration assumption produces a valid (low) misalignment result. The correct configuration is identified because it is the only one that yields an acceptable misalignment measurement when the sensor is properly installed.
Solution Approach 2:
The system uses feedback from the misalignment measurement to determine configuration correctness. The misalignment value serves as feedback indicating whether the assumed installation configuration matches the actual physical installation, allowing iterative identification of the correct configuration.
3Reliability
If multiple installation configurations are tested, then the correct configuration can be identified, but the time required for setup increases
Solution Approach 1:
The sensor performs configuration identification automatically during initial setup or activation, before the sensor is put into operational use. This preliminary action ensures correct configuration is established in advance, preventing time loss during later operational adjustments or troubleshooting.
Solution Approach 2:
The method quickly tests multiple configuration hypotheses by interpreting measurement data under different configuration assumptions and rapidly identifying the correct one through misalignment comparison, minimizing the time spent on configuration determination.
Data Source
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AI summary
The invention relates to a sensor and to an associated method for determining an actual mounting configuration (30, 32) of the sensor (10; 12) on a motor vehicle (14), the sensor (10; 12) being designed for mounting in different mounting configurations (30, 32) and for operation in each of the different mounting configurations (30, 32), comprising: determining a misalignment (Ε) of the sensor (10; 12) in respect of a mounting configuration (30, 32) to be tested, wherein measured data from a measuring procedure are interpreted on the basis of the mounting configuration (30, 32) to be tested which is assumed to be correct (S10; S12); and detecting the mounting configuration (30, 32) to be tested as correct or incorrect on the basis of the misalignment (E1; Ε2) determined for the sensor (10; 12) (S14), wherein, if a mounting configuration (30, 32) to be tested is determined to be correct, said mounting configuration (30, 32) is determined to be the actual mounting configuration (30, 32) of the sensor (10; 12).