Vehicle Operating Device Resonance Amplification
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Solution Overview
Problem
Existing multifunction operating devices for vehicles lack operational reliability and long service life, especially in noisy environments, and require frequent maintenance, which is a challenge for disabled users who cannot perform maintenance themselves.
Innovation Solution
A multifunction operating device with a handle and control head that uses a circuit board and carrier part to amplify acoustic feedback through resonance, providing both audible and haptic feedback without electrical components, and includes a signal transmission device for vehicle control, designed for easy attachment and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery-supported loudspeaker system is used to provide acoustic feedback, then the user can receive feedback in noisy environments, but the device complexity increases and maintenance requirements increase
Solution Approach 1:
The patent extracts and eliminates the battery-supported loudspeaker system from the device, replacing it with a mechanical acoustic feedback mechanism using the housing as a resonance body. This removes the need for electrical components, batteries, and associated maintenance while providing sufficient acoustic feedback for reliable operation.
Solution Approach 2:
The housing itself serves as the acoustic amplification mechanism through its resonance properties. The device uses its own structural components (the hollow housing) to amplify the acoustic feedback from switching elements, eliminating the need for separate acoustic output devices and reducing overall system complexity.
2Reliability
If a battery-supported loudspeaker system is used to provide acoustic feedback, then the user can receive feedback in noisy environments, but the service life decreases due to maintenance requirements
Solution Approach 1:
The patent removes the battery-supported loudspeaker system entirely, replacing it with a passive mechanical acoustic feedback mechanism. This elimination of electrical components and batteries removes maintenance requirements while extending service life, as the mechanical resonance mechanism has no consumable parts.
3Device complexity
If the circuit board is directly bonded to the head housing, then the structure is simplified, but the acoustic feedback is damped and cannot be clearly perceived
Solution Approach 1:
The patent introduces a carrier part as an intermediary component between the circuit board and the head housing. This carrier part serves as a mounting structure that allows the circuit board to be positioned without direct bonding to the housing, thereby preventing damping of acoustic feedback while maintaining structural integrity.
Solution Approach 2:
The patent segments the mounting structure into separate components: the carrier part for circuit board mounting and the head housing for acoustic resonance. This segmentation allows the circuit board to be mounted independently on the carrier part, preventing direct contact with the housing that would dampen acoustic feedback.
4Loss of information
If the operating device is designed to be hollow to provide resonance volume, then the acoustic feedback is amplified, but the structural strength may be reduced
Solution Approach 1:
The patent employs a hollow housing structure that functions as a resonance body for acoustic amplification. The housing is designed with appropriate wall thickness and structural features to maintain sufficient strength while providing the necessary internal volume for acoustic resonance and feedback amplification.
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 device ensures high operational reliability and long service life by clearly providing feedback in noisy conditions and reducing maintenance needs, enhancing user safety and convenience.
Implementation Method 1
the head housing serves as a resonance body and thus amplifies an acoustic feedback which, according to the invention, emanates from a switching element
Implementation Method 2
Since the handle and the operating head are preferably hollow, the acoustic feedback generated by the switching element has a large resonator available, so that the acoustic feedback is amplified in this way
Implementation Method 3
the carrier part is designed as a resonator for the acoustic feedback of the switching element. This can be achieved, for example, by leaving an air gap between the circuit board and the carrier part. This air gap can thus serve as a resonance volume and amplify the acoustic feedback from the switching element
Implementation Method 4
the carrier part be connected in a form-fitting manner to the head housing. Snap-in elements are particularly preferably used in order to connect the carrier part and the head housing. The carrier part is thus preferably suspended freely in the head housing and is therefore capable of vibrating within the resonance body
Data Source
AI summary
The present invention relates to a multifunctional operating device (1) for operating a motor vehicle for disabled people, comprising a gripping piece (6) and an operating head (7) secured thereto, the operating head (7) comprising a head housing (5) and a printed circuit board (4) with at least one switch element (41), characterised in that the operating head comprises a support part (3), the printed circuit board (4) is mounted on the support part (3), the support part (3) is mounted inside the head housing (5), the at least one switch element (41) is designed to send an acoustic response when actuated, and the head housing (5) is designed as a resonance body (50) for strengthening the acoustic response.