Electrical Harness Bypassing Vehicle Security Gateway
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Solution Overview
Problem
Security gateway modules in vehicles limit or prevent access to certain electronic subsystems, necessitating a means to bypass these restrictions for unimpeded electronic access.
Innovation Solution
An electrical harness or apparatus with specific pin configurations and connectors is used to bypass the security gateway module, allowing access to electronic vehicle modules through additional ports or by bridging pins to enable communication with vehicle buses, thereby bypassing the security module's limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a security gateway module is installed to limit access to electronic subsystems, then vehicle security is improved, but access to electronic modules becomes restricted
Solution Approach 1:
The patent introduces an intermediary device that connects to both the OBD port and the communication bus, acting as a mediator to bypass the security gateway module. This intermediary contains circuitry that can communicate with the security module and provide alternative access paths, allowing diagnostic tools to reach electronic control units without being blocked by the security gateway's restrictions.
2Reliability
If the security gateway module prevents access to certain subsystems, then system protection is improved, but diagnostic capability deteriorates
Solution Approach 1:
The patent segments the communication path by introducing a separate intermediary device that operates independently from the security gateway module. This segmentation allows diagnostic communications to be routed through an alternative path that doesn't require passing through the security gateway's restricted channels, thereby maintaining system protection while enabling diagnostic access.
3Adaptability or versatility
If additional ports are added to bypass security restrictions, then access capability is improved, but device complexity increases
Solution Approach 1:
The patent implements a multi-functional intermediary device that can handle multiple communication protocols and serve multiple diagnostic purposes through a single unit. This universal device connects to the OBD port and can communicate with various electronic control units across different communication buses, providing versatile access capability without requiring separate bypass devices for each function, thereby limiting the increase in overall system complexity.
Data Source
AI summary
An illustrative electrical harness for bypassing a vehicular security module includes first, second, and third connectors, and electrical conductors. The electrical conductors electrically couple a first pin of the first connector to a third pin of the third connector, a second pin of the first connector to an eleventh pin of the third connector, a first pin of the second connector to a fourteenth pin of the third connector, and a second pin of the second connector to a sixth pin of the third connector. When the first connector is mated with a connector of a first communication bus of a vehicle and the second connector is mated with a connector of a second communication bus of the vehicle, the third connector is configured to bypass the vehicular security module by providing access to a diagnostic port of electrical modules coupled to the first or second communication buses.