Straddle Vehicle Detection Unit Positioning for Interference Reduction
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Solution Overview
Problem
Straddle type vehicles face erroneous detection issues when trying to detect surrounding conditions behind the vehicle due to interference from other vehicle components and the road surface, which existing detection devices struggle to mitigate effectively.
Innovation Solution
A detection unit is positioned lower than the taillight and higher than the license plate, connected to the vehicle body frame via a support stay, and disposed to avoid other non-transmitting members and the road surface, with the option of being housed within the rear fender to minimize interference and enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection unit is positioned at the rear portion of the vehicle to detect surrounding conditions behind the vehicle, then the detection coverage is improved, but erroneous detection increases due to interference from vehicle components and the road surface
Solution Approach 1:
The patent positions the detection unit in a specific vertical dimension between the taillight and license plate, rather than simply placing it at the rear. This dimensional placement avoids horizontal interference from vehicle components while maintaining rearward detection coverage, resolving the contradiction between detection coverage and interference avoidance
Solution Approach 2:
The detection unit is equipped with a transmission member specifically positioned in its lower portion to allow electromagnetic waves to pass through. This localized transmission capability enables the detection unit to penetrate the road surface and detect objects while minimizing interference from other vehicle components, directly addressing the harmful factors
2Reliability
If the detection unit is positioned lower to avoid interference from taillight and other components, then erroneous detection is reduced, but the detection range may be limited by the license plate and road surface
Solution Approach 1:
The transmission member acts as an intermediary that enables electromagnetic waves to pass through the lower portion of the detection unit and the road surface. This mediator allows the detection unit to maintain a low position for accuracy while still achieving adequate detection range by penetrating through obstacles rather than being blocked by them
Solution Approach 2:
By positioning the detection unit in the vertical dimension between the taillight and license plate, the patent creates a detection zone that extends rearward without being blocked by horizontal obstacles. This vertical positioning strategy maintains both accuracy and range by utilizing the unused vertical space
3Measurement precision
If the detection unit is equipped with a transmission member to allow electromagnetic waves to pass through, then detection accuracy is improved, but the device complexity increases
Solution Approach 1:
The transmission member is implemented only in the lower portion of the detection unit where it is most needed for penetrating the road surface, rather than throughout the entire device. This localized implementation maintains detection precision while minimizing the increase in device complexity
Solution Approach 2:
The lower portion of the detection unit serves dual functions: it acts as a transmission member allowing electromagnetic waves to pass through for improved detection accuracy, and simultaneously maintains the structural integrity of the device. This multi-functionality reduces the need for separate components, thereby limiting complexity increase
Data Source
AI summary
The present invention provides a straddle type vehicle, comprising: a taillight disposed in a rear portion of a vehicle and configured to emit light to rearward of the vehicle; a license plate disposed at the rear portion of the vehicle; and a detection unit configured to detect surrounding conditions behind the vehicle, wherein the detection unit is connected to a vehicle body frame via a support stay and is disposed to be lower than the taillight and higher than the license plate.