Motorcycle Lamp Sensor Layout for Accurate Cornering Detection
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Solution Overview
Problem
The existing arrangement of sensors in motorcycle head lamps is inefficient, leading to reduced detection accuracy when the vehicle body tilts during cornering.
Innovation Solution
A vehicle lamp configuration with a central light source unit and sensor housing at the central portion of the vehicle body, where the sensor is positioned to maintain detection accuracy and is complemented by a cleaner using an air blower to prevent dirt adherence, ensuring optimal sensor functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensor is disposed at a non-central position in the housing, then the layout is simpler, but the detection accuracy deteriorates when the vehicle body tilts during cornering
Solution Approach 1:
The patent applies asymmetry by positioning the sensor at the central portion of the housing in the left-right direction, which corresponds to the central portion of the vehicle body. This asymmetric positioning relative to traditional non-central arrangements ensures that the sensor maintains accurate detection capability even when the vehicle body tilts during cornering, while the housing structure itself provides the necessary support and alignment features
2Measurement precision
If the sensor is disposed at the central portion of the vehicle body, then the detection accuracy is maintained during cornering, but the housing structure becomes more complex
Solution Approach 1:
The patent merges the sensor housing with the headlamp assembly, integrating the sensor into the existing lighting structure. The housing serves dual purposes: it protects the sensor and integrates with the headlamp's optical system. This merging approach reduces overall structural complexity while maintaining central positioning for accurate detection during vehicle cornering
3Reliability
If the sensor is exposed without protection, then the structure is simpler, but dirt adherence reduces sensor performance
Solution Approach 1:
The patent employs a transparent cover or lens structure that protects the sensor while allowing light to pass through. This thin film or shell approach maintains sensor performance by preventing dirt adherence without significantly increasing structural complexity, as the protective element is integrated into the existing headlamp assembly design
Data Source
AI summary
A vehicle lamp provided in a vehicle that travels at a corner by tilting a vehicle body includes: a light source unit; a sensor configured to detect information on outside of the vehicle; and a housing that houses the light source unit and the sensor. The vehicle lamp is disposed at a central portion of the vehicle body in a left-right direction, and wherein the sensor is disposed in the housing at a central portion in the left-right direction.