Handlebar Switchgear Vibration Feedback for Quiet Electric Vehicles
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Solution Overview
Problem
Electric vehicles with reduced noise and vibration lack feedback mechanisms for drivers, making it difficult for them to intuitively understand the vehicle's operation and status without visual cues.
Innovation Solution
A switchgear system that includes a vibration generation device within a housing, mechanically coupled to a clamp device on a handlebar, which transmits vibrations to the driver, providing tactile feedback associated with various vehicle components and operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electric drivetrain is used, then noise and vibration are reduced, but driver feedback and tactile cues are lost
Solution Approach 1:
The patent applies mechanical vibration by incorporating a vibration generation device that produces controlled vibrations and transmits them through the handlebar to the driver's hands, restoring tactile feedback cues that were lost with the electric drivetrain's reduced natural vibrations
Solution Approach 2:
The system implements feedback by using sensors to detect vehicle operating parameters and control unit to generate corresponding vibration patterns that communicate vehicle status and operational state back to the driver through the handlebar
2Reliability
If vibration generation device is coupled directly to handlebar, then vibration transmission is improved, but vibration isolation may be compromised
Solution Approach 1:
The patent applies local quality by providing different vibration characteristics to different regions of the handlebar - the vibration generation device creates localized controlled vibrations at specific coupling points while allowing other portions of the handlebar to remain isolated from unwanted vibrations
Solution Approach 2:
The system uses an intermediary approach by incorporating a control unit and coupling mechanism that mediates between the vibration generation device and the handlebar, allowing selective transmission of desired vibrations while blocking unwanted vibrations through intelligent control
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
Enhances driver feedback and awareness of vehicle status through tactile vibrations, overcoming the quiet operation of electric vehicles by using eccentric rotating mass or piezoelectric vibration generation devices to convey operational information effectively.
Implementation Method 1
The vibration generation device may include an eccentric rotating mass
Implementation Method 2
The vibration generation device may include an eccentric rotating mass and/or a piezoelectric vibration generation device
Data Source
AI summary
A vehicle having an electric drivetrain, e.g., an electric motorcycle, includes a handlebar and switchgear(s) mounted on the handlebar. Vibration generation device(s) are provided in the switchgear(s) and transmit vibrations to the handlebar via the switchgear. The vibrations may be sensed by the driver or operator of the vehicle and provide to the driver or operator of the vehicle feedback or other information relating to the vehicle or its operation.