Active Vehicle Seat Deformation Element for Low-Frequency Vibration Damping
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Solution Overview
Problem
Vehicle seats fail to effectively damp low-frequency resonant vibrations, which adversely affect seating comfort, while existing solutions for higher-frequency vibrations are inadequate.
Innovation Solution
A vehicle seat with a deformation element, such as a fluid-filled cushion, that can be automatically adjusted via a control unit to absorb and counteract vibrations transmitted from the seat frame, using pressure and acceleration sensors to actively balance vibratory movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the deformation element is automatically adjusted to compensate for vibrations, then vibration damping is improved, but device complexity increases
Solution Approach 1:
The deformation element is designed to automatically adjust its shape and volume in response to detected vibrations, using sensors and actuators that operate autonomously based on real-time feedback. The control system monitors vibration levels and autonomously modulates the deformation element without requiring manual intervention, enabling the system to self-regulate and compensate for vibrations dynamically.
Solution Approach 2:
The invention incorporates sensors that detect vibration characteristics and feed this information to a control system, which then adjusts the deformation element accordingly. This closed-loop feedback mechanism enables real-time adaptation to varying vibration conditions, optimizing damping performance while maintaining system simplicity through automated 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
This solution significantly reduces the transmission of vibrations to the occupant, enhancing comfort by actively compensating for a wide range of frequencies, including low-frequency resonant vibrations, and allowing for adjustable damping and massage functions.
Implementation Method 1
at least one deformation element (9), which acts between the seat frame (29) and the seat surface (31)... absorbs at least a proportion of the forces which are exerted on the seat (25) by the sitting person
Implementation Method 2
at least the one deformation element (9) is activated in order to compensate actively for vibrations, which may be transmitted via the seat frame (29) to a person sitting on the seat
Implementation Method 3
A vehicle seat with a deformation element, such as a fluid-filled cushion, that can be automatically adjusted via a control unit to absorb and counteract vibrations transmitted from the seat frame
Data Source
AI summary
A seat according to the invention, in particular a vehicle seat (25), comprises a seat frame (29), a seat surface (31) and at least one deformation element acting between the seat frame (29) and the seat surface (31), at least the one deformation element being capable of automatic activation in order to compensate actively for vibrations transmitted via the seat frame (29) to a person sitting on the seat. The invention also relates to a method for activating a deformation element of a seat, in particular a vehicle seat (25), which acts between a seat frame (29) and a seat surface (31) of the seat.