Car Seat Harness Deceleration Controller
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Solution Overview
Problem
Current vehicular safety devices, such as air-bags and seat belts, are inadequate in preventing injuries during high-speed impacts, as they often cause further harm and fail to provide controlled deceleration of the occupant's upper body effectively.
Innovation Solution
A deceleration controller apparatus featuring a safety net harness with motor and gearbox control, impact sensors, and computer-aided logic to measure forces and trajectory, deploying the harness over the occupant's head and torso to apply uniform deceleration forces, thereby minimizing injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard seat belts and air-bags are used, then basic restraint function is provided, but controlled deceleration is not achieved and injuries occur during high-speed impacts
Solution Approach 1:
The safety system is divided into multiple functional components: impact sensors detect collision forces, microprocessors analyze sensor data to determine impact severity, and motor-driven reel mechanisms independently control each harness strap. This segmentation allows each component to perform its specific function efficiently, achieving controlled deceleration through coordinated action of multiple simplified modules rather than a single complex system.
Solution Approach 2:
The harness system transitions from a static configuration to a dynamic one through motor-driven reels that actively adjust strap tension and length during impact. The motors receive real-time feedback from impact sensors and microprocessors, dynamically modifying the restraint forces applied to the occupant. This dynamic adaptation enables optimized deceleration control tailored to the specific impact conditions, significantly improving injury prevention effectiveness.
2Force
If air-bags are deployed to intercept occupant movement, then some deceleration is provided, but the occupant's upper body is not uniformly restrained and neck/head injuries occur
Solution Approach 1:
Impact sensors continuously monitor collision forces and feed this data to microprocessors, which then adjust motor-driven reel mechanisms in real-time. This feedback loop ensures that each harness strap applies precisely controlled deceleration forces tailored to the actual impact conditions. The system monitors and adjusts tension distribution across multiple straps simultaneously, guaranteeing uniform restraint application to the torso while preventing excessive forces on the head and neck.
Solution Approach 2:
The passive mechanical restraint system of traditional seat belts is replaced with an active electromechanical system. Motor-driven reels electronically control strap tension and length, substituting simple friction-based mechanical restraint with precisely controlled motorized mechanisms. This substitution enables programmable deceleration profiles that uniformly distribute restraint forces across the occupant's torso, eliminating the uneven force application that causes neck and head injuries in conventional systems.
3Reliability
If higher impact speeds are tested (above 30 MPH), then realistic crash conditions are simulated, but standard safety devices become less adequate and serious injuries occur
Solution Approach 1:
Impact sensors are pre-positioned to detect collision forces at the moment of impact, and microprocessors are pre-programmed with deceleration algorithms optimized for various impact speeds including high-speed scenarios above 30 MPH. The motor-driven reels are pre-configured to deliver progressively increasing restraint forces based on detected impact severity. This preliminary preparation ensures that the system responds instantly and appropriately to high-speed crashes, providing adequate protection when it is most needed without sacrificing performance efficiency.
Solution Approach 2:
The system dynamically changes operational parameters based on detected impact conditions. Microprocessors analyze sensor data to determine impact speed and severity, then adjust motor reel torque, strap tension, and deceleration timing accordingly. For high-speed impacts above 30 MPH, the system automatically increases restraint forces and modifies deceleration profiles to match the higher energy conditions. This parameter adaptation maintains optimal safety performance across the full range of crash severities without reducing efficiency in any specific speed regime.
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 apparatus effectively controls deceleration forces to prevent serious injury by uniformly restraining the occupant's torso, head, and neck during impacts, returning them to an upright position, outperforming standard safety devices in high-speed crash scenarios.
Implementation Method 1
electric solenoid means, to tighten the cable means connected to the movable harness means at its upper portions
Implementation Method 2
impact switch means to detect impact
Implementation Method 3
gearbox means and connected motor means to provide deceleration control to the movements of the harness means
Data Source
AI summary
An improved car seat pressure deceleration controller apparatus for providing in pressure through harness means positioned across the front chest of a seated occupant of a passenger vehicle, movable upon impact of the vehicle by activation of electric solenoid means connected by cable means extended over pulley means to engage an upper portion of the harness means, and to move the harness means in an elevated position to encompass over the head of the occupant, and the harness means being connected along its lower portion to tension belt means, controlled by gearbox drive means and motor means to provide deceleration controlled movement to the harness means to decelerate the movements of the harness means, and programmable computer and processor means to determine the position of the harness means to determine the deceleration control for the harness means.