Vehicle Storage Compartment Door with Capacitive Sensor and Dynamic Actuation

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Solution Overview

Problem

Vehicles often lack user-friendly mechanisms for opening and closing storage compartments, making it inconvenient for users to access stored items.

Innovation Solution

A storage compartment with a door that is operable between open and closed positions, equipped with a capacitive sensor integrated into a decorative trim component, allowing the door to pivot open via a pivot axis when a user touches the trim component, and an actuator that is electrically connected to the sensor only when the door is closed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional manual opening mechanism is used for the storage compartment door, then the device complexity is reduced, but the ease of operation deteriorates

Engineering Contradiction:
Improveease of opening doorVSAvoidcomplexity of opening mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the traditional mechanical manual opening mechanism with a capacitive sensor system that detects user touch and automatically activates an actuator to open the door. This substitution of mechanical systems with electronic sensing and actuation systems directly improves ease of operation while accepting increased device complexity, as the capacitive sensor and actuator work together to eliminate the need for manual mechanical manipulation.

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

2Reliability

If the sensor is always electrically connected to the actuator, then the reliability of the opening function is improved, but the manufacturing precision requirements worsen

Engineering Contradiction:
Improvereliability of sensor-actuator connectionVSAvoidprecision of electrical contact alignment
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent implements a dynamic electrical connection system where the sensor and actuator are electrically connected only when the door is in the closed position. When the door opens, the electrical connection is automatically disconnected. This dynamic approach allows for more tolerant manufacturing specifications since the electrical contacts only need to align precisely when the door is closed, rather than maintaining continuous precise alignment throughout all door positions, thus reducing manufacturing precision requirements while maintaining reliability during the critical closed state.

Inventive Principle:
Principle #15Dynamics

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

Enables convenient and aesthetically appealing access to storage compartments by allowing users to open the door with a touch, while simplifying manufacturing through electrical connectivity changes during door operation.

Implementation Method 1

A sensor is coupled to the door and configured to sense a user input. The sensor is a capacitive sensor; the capacitive sensor is configured to sense the user input when a user touches the decorative trim component

Methodology Applied
Scientific EffectCapacitive sensing: Capacitance

Data Source

PatentUS11235707B2Vehicle storage compartment
Publication Date: 2022.02.01 FORD GLOBAL TECH LLC
  • US11235707B2 patent drawing
  • US11235707B2 patent drawing
  • US11235707B2 patent drawing

AI summary

A storage compartment for the vehicle is disclosed herein. The storage compartment includes a receptacle. A door is coupled to the receptacle and is operable between an open position and a closed position. A sensors coupled to the door and is configured to sense a user input. An actuator is configured to allow the door to move from the closed position to the open position in response to the sensor, sensing the user input, wherein the actuator is electrically coupled to the sensor when the door is in the closed position and is electrically disconnected from the sensor, when the door is in the open position.