Vehicle Beam Sensor Axial Misalignment Diagnostic Apparatus
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Solution Overview
Problem
Existing technologies face challenges in detecting axial misalignment of beam sensors on vehicles while the vehicle is running, leading to potential inaccuracies in radar beam detection and control systems.
Innovation Solution
A diagnostic apparatus for beam sensors that includes an obtaining unit for horizontal misalignment information and a diagnostic unit for vertical misalignment, which determines whether to execute a vertical misalignment diagnosis based on horizontal misalignment information, preventing erroneous detection and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If vertical misalignment diagnosis is executed regardless of horizontal misalignment status, then detection coverage is improved, but erroneous detection increases
Solution Approach 1:
The system performs preliminary detection of horizontal misalignment before executing vertical misalignment diagnosis. The obtaining unit acquires horizontal misalignment information first, and the determining unit uses this information to decide whether to proceed with vertical misalignment diagnosis, preventing erroneous detection by avoiding diagnosis when horizontal misalignment is present
Solution Approach 2:
The system implements a feedback mechanism where the result of horizontal misalignment detection feeds into the decision-making process for vertical misalignment diagnosis. The determining unit receives horizontal misalignment information and uses it to control the execution of vertical misalignment diagnosis, creating a conditional feedback loop that improves overall detection reliability
2Measurement precision
If horizontal misalignment is detected and used to control vertical diagnosis, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The diagnostic system is segmented into distinct functional units: an obtaining unit for horizontal misalignment information, a determining unit for decision-making, and a diagnostic unit for vertical misalignment diagnosis. This segmentation allows each unit to perform its specific function independently, improving detection accuracy while keeping the overall system structure clear and manageable
Solution Approach 2:
The determining unit serves multiple functions: it receives horizontal misalignment information, processes this information, and based on the processing result, controls whether vertical misalignment diagnosis should be executed. This multi-functionality reduces the need for separate control mechanisms, thereby managing system complexity while achieving improved detection accuracy
Data Source
AI summary
A diagnostic apparatus includes an obtaining unit for obtaining horizontal misalignment information indicative of whether there is horizontal misalignment in a probing beam. The diagnostic apparatus includes a diagnostic unit for diagnosing whether there is vertical misalignment. The vertical misalignment is misalignment of the probing beam with respect to a designed beam axis position in a vertical direction. The vertical direction corresponds to a height direction of the vehicle. The diagnostic apparatus includes a determining unit for determining, based on the horizontal misalignment information, whether the diagnostic unit executes diagnosis of the vertical misalignment. The determining unit causes the diagnostic unit to execute diagnosis of the vertical misalignment upon the horizontal misalignment information representing that there is no horizontal misalignment. The determining unit disables the diagnostic unit from executing diagnosis of the vertical misalignment upon the horizontal misalignment information representing that there is horizontal misalignment.