Vehicle Passive Entry Latency Reduction via Pre-Authentication
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Solution Overview
Problem
Current password-based entry systems for vehicles, such as phone-as-a-key (PaaK) systems, are vulnerable to hacking and require time-consuming security measures, leading to user annoyance and potential misuse.
Innovation Solution
A keyless entry management system that uses wireless communication nodes to detect and authenticate passive entry devices, such as smartphones or PEPS key fobs, within a monitored zone, and provides visual prompts for door operation, minimizing latency and security delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If password entry systems are implemented to enhance security, then security against hacking and misuse is improved, but entry time increases due to time-consuming security operations
Solution Approach 1:
The system performs preliminary authentication by detecting and caching the passive entry device when it enters a geofenced area around the vehicle, before the user actually approaches to enter the vehicle. This pre-authentication process stores authentication tokens locally, so when the user later approaches the vehicle, the door can be unlocked immediately without requiring real-time password verification or cloud communication, thus resolving the contradiction between security and entry speed.
2Reliability
If additional security operations such as device verification and user authorization are performed, then security against unauthorized access is improved, but latency in the entry process increases
Solution Approach 1:
The system performs device verification and user authorization in advance when the passive entry device first enters the geofenced area. Authentication tokens are cached locally in the vehicle's system during this preliminary phase. When the user subsequently approaches the vehicle for entry, the system uses the pre-cached tokens for immediate verification, eliminating the need to perform time-consuming device verification and authorization operations in real-time, thus reducing latency while maintaining security.
Solution Approach 2:
The system implements local caching of authentication tokens in the vehicle's onboard system rather than requiring continuous cloud communication. This local storage capability allows the system to perform security operations locally and rapidly without the latency introduced by network-dependent verification processes, resolving the contradiction between comprehensive security checks and fast entry response.
3Loss of time
If geofenced area detection and pre-authentication are implemented, then entry latency is reduced, but system complexity increases
Solution Approach 1:
The system establishes a geofenced virtual perimeter around the vehicle and automatically detects when a passive entry device enters this zone. Upon detection, the system initiates pre-authentication operations and caches authentication tokens locally. This preliminary action framework, while adding some complexity, enables the system to perform bulk authentication work in advance, dramatically reducing entry latency when the user actually approaches the vehicle.
Solution Approach 2:
The system uses the passive entry device's own wireless signals (such as Bluetooth or RFID emissions) for detection and authentication purposes. The device essentially serves itself by providing the authentication credentials passively when detected in the geofenced area, eliminating the need for additional active components or complex user interactions, thus managing system complexity while achieving fast pre-authentication.
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
Enhances security and reduces entry latency by authenticating users and devices quickly, preventing unauthorized access while streamlining the entry process for authorized users.
Implementation Method 1
a wireless communication node of a vehicle detects a presence of a passive entry device inside a passive entry zone of the vehicle using electromagnetic radiation
Data Source
AI summary
Exemplary embodiments described in this disclosure are generally directed to systems and methods for reducing latency in a passive entry system of a vehicle. In an exemplary method, a computer detects a presence of a passive entry device inside a passive entry zone of the vehicle. The passive entry device may be a phone-as-a-key (PaaK) device or a key fob, and the passive entry zone is an area around the vehicle that is monitored by a wireless detection system of the vehicle. The computer authenticates the passive entry device, which can include determining an identity of an individual authorized to use the passive entry device. Upon successful authentication, the computer may unlock a door of the vehicle and provide a visual prompt to the individual to unlatch the unlocked door. The visual prompt can include an unlatch icon displayed upon a door access panel of the vehicle.