Magnetic Child Seat Latching for Fast Vehicle Seat Alignment

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Solution Overview

Problem

Current child seat assemblies are heavy, bulky, and require significant time and effort for attachment or removal in a vehicle, and may shift position during a car ride without user awareness.

Innovation Solution

A child seat latching system featuring a portable seat with magnetic alignment and locking mechanisms, integrated with an electronic control unit (ECU) for securement to a stationary vehicle seat, which includes sensors and locks for quick and secure attachment, and a release mechanism for detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If magnetic alignment units are integrated into the child seat system, then alignment precision and installation speed are improved, but device complexity increases

Engineering Contradiction:
Improvealignment precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical alignment mechanisms with magnetic field-based alignment units. The magnetic alignment units generate magnetic fields that automatically guide and position the child seat relative to the vehicle seat, eliminating the need for complex mechanical alignment components and manual adjustment procedures.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic fields as an intermediary between the child seat and vehicle seat. The magnetic alignment units create an invisible magnetic field that acts as a mediator to achieve precise alignment without direct mechanical contact or complex mechanical structures, allowing the system to overcome the contradiction between precision and complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of time

If automated sensing and locking mechanisms are implemented, then installation time is reduced, but device complexity increases

Engineering Contradiction:
Improveinstallation timeVSAvoiddevice complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements self-service functionality through automated sensing and locking mechanisms. Sensors automatically detect when the child seat is properly positioned, and locking mechanisms automatically engage without requiring manual intervention. This allows the system to perform installation functions autonomously, dramatically reducing installation time while the automation handles the complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates feedback loops where sensors continuously monitor the position and status of the child seat, and this information is fed back to control systems that automatically adjust and lock the seat in place. This automated feedback mechanism enables rapid installation by eliminating manual checking and adjustment steps, with the control system managing the complexity of coordinating multiple sensing and actuation functions.

Inventive Principle:
Principle #23Feedback

3Reliability

If multiple sensing and locking points are added to prevent position shifts, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveposition stabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the securement system into multiple independent sensing and locking points distributed at different locations on the child seat and vehicle seat. Each sensing point monitors a specific parameter (position, orientation, force), and each locking point provides independent securement. This segmentation allows the system to achieve high reliability through distributed monitoring and locking without requiring a single complex integrated system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent inverts the traditional approach by having the child seat system actively monitor and adjust its position rather than relying solely on passive mechanical restraints. Multiple sensors continuously detect position changes, and the system actively responds by triggering locking mechanisms or providing feedback to the user, transforming the system from passive to active and significantly improving position stability.

Inventive Principle:
Principle #13The other way round (Inversion)

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 system allows for rapid, efficient, and secure attachment of the child seat to the vehicle seat, with monitoring and alert functions to maintain alignment and securement, reducing installation time and preventing unintended shifts during travel.

Implementation Method 1

a first magnetic unit disposed on one of the base portion and the back portion... arranged to generate and sense magnetic fields for alignment in the vehicle

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

the first and second magnetic units align the portable child seat with the vehicle seat for securement

Methodology Applied
Scientific EffectMagnetic alignment: Magnetism

Data Source

PatentUS12358403B2Child seat latching system for a vehicle
Publication Date: 2025.07.15 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US12358403B2 patent drawing
  • US12358403B2 patent drawing
  • US12358403B2 patent drawing

AI summary

A child seat latching assembly for a vehicle is provided. The assembly comprises a child seat comprising a base portion having a base bar, a back portion having a back bar, and a first magnet generating a first magnetic field. The assembly further comprises a vehicle seat comprising a receiving portion having a base latch unit including a base connector comprising a base lock to secure the base bar in the base connector. The vehicle seat comprising a support portion having a back latch unit including a back connector comprising a back lock to secure the back bar in the back connector. The vehicle seat comprising a second magnet generating a second magnetic field in operation with the first magnetic unit. The first and second magnetic fields arranged to align the portable child seat with the vehicle seat when the first and second magnets are within a predetermined distance.