Straddle Vehicle Direction Indicator Ultrasonic Sensor Integration
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Solution Overview
Problem
The detection accuracy of sensing devices on straddle type vehicles is compromised due to obstruction by vehicle components or the driver's clothing, as the detection range is often blocked by mirrors, handles, or other external elements.
Innovation Solution
A straddle type vehicle design featuring a direction indicator with a recessed area housing the sensing device, which projects outward and includes a light source, an elastic member for support, and a vibration damping member to prevent obstruction and enhance detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the sensing device is provided on the side of the vehicle main body, then the device is easily accessible and installable, but the detection range is blocked by mirrors, handles, or driver's clothing
Solution Approach 1:
The sensing device is integrated into the direction indicator that projects outward from the vehicle body in the vehicle width direction. This dimensional extension positions the sensing device in a location that is both accessible and free from obstructions by mirrors, handles, or driver's clothing, thereby resolving the contradiction between ease of installation and detection accuracy.
2Measurement precision
If the sensing device is positioned outside the vehicle main body, then detection accuracy is improved, but the device is exposed to external damage and environmental factors
Solution Approach 1:
The sensing device is nested within the hollow interior of the direction indicator, which serves as a protective housing. This nesting arrangement protects the sensing device from external damage and environmental factors while maintaining its outward-facing detection capability, thus resolving the contradiction between detection accuracy and device protection.
3Device complexity
If the direction indicator houses both light source and sensing device, then space is efficiently utilized, but heat from light source may affect sensing device performance
Solution Approach 1:
A heat insulating member is introduced as an intermediary between the light source and the sensing device within the direction indicator housing. This heat insulating member prevents thermal interference from the light source to the sensing device, maintaining sensing accuracy while allowing both components to be integrated in the same housing structure.
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
The solution improves detection accuracy by positioning the sensing device outside potential obstructions, amplifying ultrasonic waves, dissipating heat, and reducing vibrations, thereby enhancing the overall sensing performance.
Implementation Method 1
a sensing device configured to detect an obstacle around the vehicle using an ultrasonic wave
Implementation Method 2
an elastic member configured to elastically support the direction indicator on the fixing portion
Implementation Method 3
a vibration damping member interposed between the distal end portion and the sensing device
Data Source
AI summary
There is provided with a straddle type vehicle. A direction indicator is formed to project outward in a vehicle width direction and shows a traveling direction of the vehicle. A sensing device detects an obstacle around the vehicle using an ultrasonic wave. The sensing device is arranged in a distal end portion of the direction indicator.