Dual-Input Vehicle Entry System Reducing False Activations

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Solution Overview

Problem

Conventional keyless entry systems for vehicles lack enhanced authentication protocols to prevent unintended access and are prone to false activations due to environmental factors, leading to inefficient power usage and improper door states.

Innovation Solution

A dual-input interface system where a force-based mechanical switch and a non-force based capacitive touch device work together to shift the keyless entry system from an inactive to an active mode, with a 'wake-up' functionality that uses a swipe motion to transition from a low-power state to a high-power state, reducing false activations and enhancing security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a capacitive touch device is used for keyless entry, then ease of operation is improved, but false activation from environmental factors increases

Engineering Contradiction:

Improveease of operationVSAvoidfalse activation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The touch device is divided into multiple independently controllable capacitive sensors arranged in a grid pattern, allowing the system to distinguish between different touch locations and patterns, thereby reducing false activations while maintaining ease of operation

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts the sensitivity and activation thresholds of capacitive sensors based on environmental conditions and usage patterns, enabling it to differentiate between deliberate user inputs and environmental interference such as rain or flying debris

Inventive Principle:

Principle #15Dynamics

2Speed

If the keyless entry system remains in active mode continuously, then responsiveness is improved, but power consumption increases

Engineering Contradiction:

ImproveresponsivenessVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The system employs periodic wake-up cycles where the capacitive sensors are activated at predetermined intervals rather than continuously, maintaining system responsiveness while significantly reducing overall power consumption during idle periods

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system performs preliminary detection using low-power mechanisms before fully activating the keyless entry system, allowing it to prepare for potential user interactions while minimizing power consumption during extended idle periods

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If authentication protocols are simplified, then ease of operation is improved, but security is weakened

Engineering Contradiction:

Improveease of operationVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The authentication process is segmented into multiple independent verification stages including touch pattern recognition, temporal sequence validation, and cryptographic verification, allowing the system to maintain security while presenting a simple user interface

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system introduces intermediary verification layers such as biometric authentication and encrypted challenge-response protocols between the user input and system access, enhancing security without complicating the user experience

Inventive Principle:

Principle #24Intermediary (Mediator)

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 effectively prevents unintended access and reduces power consumption by requiring a deliberate user input sequence, ensuring the door remains in its intended locked or unlocked state while minimizing false activations from environmental factors.

Implementation Method 1

capacitive sensors are used to as the code input interfaces associated with the keypad

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS10099656B2Swipe and tap verification for entry system using swipe and tap touch switch

Publication Date: 2018.10.16 MAGNA CLOSURES INC

AI summary

A system and method for providing access to a vehicle operation includes a first user-input interface, a second user-input interface, and a vehicle controller. The first user-input interface is configured to interact with a user via a swipe-up input. The second user-input interface is configured to interact with the user via an application independent of the swipe-up input. The vehicle controller is configured to control the vehicle operation in response to detecting a first swipe-type user-input via the first user-input interface and a second user-input via the second user-input interface within a predetermined time.