Vehicle Hatch Intent Detection Using Authenticated User Identifiers
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Solution Overview
Problem
Existing technologies for detecting the intention of a user to open a hatch of a vehicle are prone to false positives and false negatives due to the sensitivity of movement sensors, such as kick sensors, which can be triggered by spurious movements like a cat passing, leading to undesired hatch opening.
Innovation Solution
A system that uses an identifier to record and authenticate a user's intention to open a hatch, sending a command signal to an electronic control unit via a microphone, application, or button, allowing for precise confirmation of the user's intent through pre-recorded voice messages or confirmation values, reducing reliance on movement sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If movement sensors (kick sensors) are used to detect user intention to open hatch, then the system can detect spontaneous gestures without manual intervention, but the sensors are overly sensitive and detect spurious movements causing false positives
Solution Approach 1:
The patent introduces an intermediary authentication system between the movement detection and hatch opening. Instead of directly opening the hatch upon movement detection, the system uses an identifier (smartphone, key fob, etc.) as a mediator to verify user intent through authentication protocols, thereby filtering out spurious movements while maintaining automatic operation capability
Solution Approach 2:
The patent replaces the mechanical movement sensing system with an electronic authentication-based detection system. Instead of relying on physical kick sensors that detect mechanical movements, the system uses electronic identifiers and authentication protocols to detect and confirm user intention, eliminating the sensitivity issues of mechanical sensors
2Extent of automation
If movement sensors are used to detect user intention, then automatic detection is possible, but the system produces false negatives when foot passage is too far from sensor
Solution Approach 1:
The patent makes the identifier serve multiple functions: it acts as both the authentication credential and the detection mechanism. The identifier can detect user presence and intent regardless of specific physical location, replacing the location-dependent kick sensor with a universal authentication system that works throughout the vehicle vicinity
3Extent of automation
If movement sensors are installed in the vehicle, then hatch opening detection is enabled, but the system cost increases
Solution Approach 1:
The patent extracts the detection functionality from the vehicle itself and places it in the user's identifier. Instead of installing sensors in the vehicle to detect user actions, the system uses the identifier that the user already possesses to perform detection and authentication, eliminating the need for expensive movement sensors in the vehicle
Solution Approach 2:
The identifier performs self-service by containing both the detection capability and authentication logic. The identifier autonomously detects user intent and communicates with the vehicle's electronic control unit, eliminating the need for external sensing infrastructure and reducing system costs
Data Source
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AI summary
The invention relates to a system for detecting the intention of a user to open a hatch of a vehicle, comprising: - (a) an identifier comprising means for recording intention to open a hatch and being configured to: - authenticate itself with an electronic control unit, - when it is located in a region of proximity around said hatch, receive from said electronic control unit a request for confirmation of intention to open a hatch, - following receipt of said request for confirmation of intention to open a hatch, verify the existence of a command confirming intention to open a hatch in a memory in the identifier, - if said command exists, send to the electronic control unit a corresponding command signal, - if said command does not exist, send a data signal to a user of said identifier to initiate said command confirming intention to open a hatch via said means for recording intention to open a hatch, - when said command is initiated, send to said electronic control unit a command signal corresponding to said command confirming intention to open a hatch, - (b) said electronic control unit being integrated in said vehicle and being configured to: - authenticate said identifier, - locate said identifier in a region of proximity around said hatch, - send to said identifier said request for confirmation of intention to open a hatch, - receive said command signal corresponding to said command confirming intention to open a hatch.