Straddle Vehicle Sensor Mounting With Rubber Vibration Isolation

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Solution Overview

Problem

Existing straddle type vehicles face challenges in efficiently fixing sensor units at appropriate positions to suppress vibration during vehicle travel, without requiring additional fixing structures.

Innovation Solution

A straddle type vehicle design that includes a vehicle body frame, a fixed member attached to the frame for fixing electrical components, and a sensor unit that is fixed to the fixed member together with the electrical component via a rubber member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a sensor unit is mounted on a straddle type vehicle, then the vehicle can detect objects around it, but the sensor unit experiences vibration during vehicle travel

Engineering Contradiction:

Improvedetection capabilityVSAvoidvibration

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a rubber member as an intermediary between the sensor unit and the vehicle body. This rubber member acts as a vibration-absorbing mediator that transmits necessary structural support while filtering out harmful vibrations, allowing the sensor to maintain detection reliability without being directly affected by vehicle travel vibrations

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies vibration cushioning in advance by installing the rubber member before the sensor unit is subjected to vibration during vehicle operation. This pre-cushioning approach prevents vibration transmission from the vehicle body to the sensor unit, protecting the sensor from harmful vibrations before they can affect detection accuracy

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

2Object-affected harmful factors

If a new fixing structure is provided for the sensor unit, then vibration can be suppressed, but the device complexity increases

Engineering Contradiction:

Improvevibration suppressionVSAvoidfixing structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent makes the rubber member serve multiple functions: it acts as both a vibration-absorbing element and a fixing element that secures the sensor unit to the vehicle body. This multi-functionality eliminates the need for separate vibration suppression mechanisms, reducing overall device complexity while maintaining effective vibration control

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the vibration suppression function with the fixing function into a single rubber member component. By combining these two functions that were previously handled by separate structures, the overall system complexity is reduced while achieving both secure mounting and vibration suppression

Inventive Principle:

Principle #5Merging (Combining)

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

This solution allows for efficient fixation of sensor units at appropriate positions, effectively suppressing vibration during vehicle travel, without the need for new fixing structures.

Implementation Method 1

a sensor unit including a sensor for detecting an object around a vehicle body and fixed to the fixed member together with the electrical component via a rubber member

Methodology Applied

Scientific EffectVibration damping: Damping

Data Source

PatentUS20250074531A1Straddle type vehicle

Publication Date: 2025.03.06 KAWASAKI MOTORS LTD

AI summary

A straddle type vehicle includes a vehicle body frame; a fixed member which is supported by the vehicle body frame and to which an electrical component is fixed; and a sensor unit including a sensor for detecting an object around a vehicle body and fixed to the fixed member together with the electrical component via a rubber member.