Vehicle PEPS Mode Switching for Unauthorized Access Prevention
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Solution Overview
Problem
Conventional remote keyless systems for vehicles lack effective measures to prevent unauthorized unlocking and starting, as they can be exploited by unauthorized users sending false signals, and existing solutions like Faraday Shields are inconvenient and costly.
Innovation Solution
A system and method that temporarily disables the passive entry passive start (PEPS) capabilities by switching to a restricted operation mode, requiring a valid key for activation, and ignoring unauthorized commands through the vehicle computing system, thereby preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional remote keyless systems are used, then ease of operation is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The system dynamically switches between standard PEPS operation mode and restricted PEPS operation mode based on activation status. The body control module adjusts its response behavior to entry commands in real-time, being responsive in standard mode and unresponsive in restricted mode, thereby adapting the system's operational characteristics to security requirements.
Solution Approach 2:
The system changes the operational parameter of the body control module by switching between two distinct modes: standard PEPS mode where the module responds to entry commands, and restricted PEPS mode where the module ignores entry commands. This parameter change allows the same hardware to provide both convenient operation and security protection.
2Reliability
If aftermarket Faraday Shields are used, then security against unauthorized access is improved, but ease of operation deteriorates and cost increases
Solution Approach 1:
The vehicle's body control module provides the security function itself by autonomously deciding whether to respond to entry commands based on its operational mode. The system serves its own security needs through built-in logic that determines responsiveness, eliminating the requirement for external shielding products and their associated operational inconveniences.
3Reliability
If passive entry disabling feature is activated, then security against unauthorized access is improved, but device complexity increases
Solution Approach 1:
The body control module performs multiple functions: it controls vehicle entry operations and simultaneously manages security mode switching. The same module that processes entry commands also determines whether to respond to those commands based on operational mode, consolidating security management within an existing component rather than adding separate dedicated security hardware.
Data Source
AI summary
Various embodiment of the present disclosure provide a system and method for disabling a passive entry passive start system (PEPS) of a vehicle. In one embodiment, the system and method of the present disclosure enable a user of the vehicle to disable the standard PEPS operations so that the vehicle control module will not unlock the vehicle or automatically start the vehicle as it would under standard operation.