Vehicle Seat Motor Torque for Music Sync
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Solution Overview
Problem
Existing vehicle seat vibration systems require separate actuators, increasing vehicle weight and cost, as they need additional motors to adjust seats and generate vibrations in sync with music.
Innovation Solution
A system using an electric motor integrated into the seat, connected to a multiple-control circuit that synthesizes signals for seat adjustment and vibration, generating motor torque to create vibrations in sync with music, eliminating the need for a separate actuator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate actuator is installed inside the seat to generate vibration, then the seat vibration function is achieved, but the weight and cost of the vehicle increase
Solution Approach 1:
The patent combines the vibration generation function with the existing electric motor that adjusts the seat position. The electric motor is controlled to generate vibration in addition to its primary function of adjusting seat position, eliminating the need for a separate vibration actuator and reducing overall system weight.
Solution Approach 2:
The electric motor is made multi-functional by enabling it to perform both seat position adjustment and vibration generation. Through multiple-control circuitry, the same motor executes different control signals to achieve either positional adjustment or rhythmic vibration, thereby serving multiple purposes with a single component.
2Adaptability or versatility
If a separate actuator is installed inside the seat to generate vibration, then the seat vibration function is achieved, but the cost of the vehicle increases
Solution Approach 1:
The patent merges the vibration generation capability into the existing electric motor system, eliminating the need to manufacture and install a separate vibration actuator. This integration reduces component count, assembly complexity, and overall manufacturing cost while maintaining the desired vibration function.
Solution Approach 2:
By making the electric motor universal (capable of both position adjustment and vibration), the patent avoids the cost of acquiring and integrating a dedicated vibration actuator. The multi-functional approach leverages existing infrastructure to deliver additional functionality at minimal incremental cost.
3Ease of operation
If the electric motor generates vibration in sync with music, then occupant satisfaction improves, but the control complexity increases
Solution Approach 1:
The patent incorporates feedback mechanisms where the control circuit receives audio signals from the vehicle's audio system and uses them to modulate the electric motor's operation. The motor's vibration output is controlled based on real-time audio input, creating a synchronized experience while using feedback loops to manage control complexity.
Solution Approach 2:
The patent introduces a multiple-control circuit as an intermediary between the audio system and the electric motor. This intermediary component processes audio signals, extracts rhythmic patterns, and translates them into appropriate motor control signals, thereby managing the complexity of synchronizing vibration with music without requiring direct complex integration between audio and motor systems.
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 reduces vehicle weight and cost by integrating the vibration generation into the seat's electric motor, providing a comfortable and safe experience for occupants through synchronized seat vibrations with music.
Implementation Method 1
an electric-motor multiple-control circuit configured to receive a signal of a seat position adjustment switch and a signal of an audio switch, to generate a driving current required to vibrate the seat, and then to output the driving current to an electric motor, wherein the electric motor receives the signal of the electric-motor multiple-control circuit and generates a motor torque while being driven
Data Source
AI summary
A system for generating a vibration of a seat of a vehicle in sync with music outputted from an audio device using an electric motor included in the seat to adjust the seat in forward and backward directions and upward and downward directions includes: an electric-motor multiple-control circuit configured to receive a signal of a seat position adjustment switch and a signal of an audio switch, generate a driving current required to vibrate the seat, and output the driving current to an electric motor. The electric motor receives a signal from the electric-motor multiple-control circuit and generates a motor torque while being driven, and the generated motor torque is transferred to the seat to generate a target vibration in the seat.