OBD Dongle Key Programming With Immobilizer Algorithm Download
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Solution Overview
Problem
Existing vehicle key programming systems are costly, time-consuming, and limited in programming accuracy, requiring specialized tools and dealership intervention, especially for smartkeys, transponder keys, and remote head keys, with consumers lacking the capability to easily program their own keys.
Innovation Solution
A system and method utilizing a dongle and application that communicates with a vehicle's OBD port, downloads vehicle-specific immobilizer algorithms, and programs keys via a smartphone, offering a cost-effective and user-friendly solution for programming all types of vehicle keys, including smartkeys, using immobilizer algorithms and remote support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple vehicle programmers with immobilizer algorithms are used to program transponder and smartkeys, then key programming capability and security are improved, but device cost and complexity increase significantly
Solution Approach 1:
The patent creates a universal key programming system that can program multiple types of keys (transponder keys, smartkeys, remote head keys) across different vehicle makes and models through a single device. The system achieves this by incorporating multiple immobilizer algorithms and using a standardized interface that adapts to different vehicle types, eliminating the need for separate specialized programmers for each key type or vehicle brand.
Solution Approach 2:
The patent implements a nested structure where a universal programmer contains multiple vehicle-specific algorithms and programming protocols within it. The system is designed with layers of compatibility - a core programming engine that can accommodate different immobilizer algorithms (Ford, GM, Chrysler, Toyota, Honda, etc.) nested within a single device, allowing one programmer to perform the functions of multiple specialized tools.
2Manufacturing precision
If dealership programming services are used for smartkey and transponder key replacement, then programming accuracy and security are ensured, but service cost and time consumption increase
Solution Approach 1:
The patent enables end-users to perform key programming themselves without requiring dealership intervention. The system is designed to be user-friendly with automated vehicle recognition (through VIN decoding or manual selection) and guided programming procedures that walk users through the process. This self-service capability allows consumers to program replacement keys at home, eliminating the need to travel to a dealership and wait for professional programming services.
3Reliability
If specialized programming tools are required for key pairing, then programming security is maintained, but ease of operation for consumers deteriorates
Solution Approach 1:
The patent introduces an intermediary system that bridges the gap between secure dealership-level programming tools and consumer-friendly operation. The universal programmer acts as a mediator, incorporating the security protocols and algorithms of multiple vehicle manufacturers while presenting a simplified interface to the end-user. The system handles the complex security handshakes and authentication protocols automatically, allowing users to simply follow basic prompts without needing to understand the underlying security mechanisms.
4Adaptability or versatility
If multiple vehicle-specific algorithms are incorporated into programmers, then compatibility with different vehicle models is improved, but device cost increases
Solution Approach 1:
The patent creates a single universal programmer that incorporates multiple vehicle-specific algorithms and protocols, enabling one device to program keys for various makes and models (Ford, GM, Chrysler, Toyota, Honda, Nissan, etc.). This multi-functional approach consolidates what would traditionally require multiple separate specialized tools into one device, achieving broad vehicle compatibility while managing cost through integration rather than multiplication of separate systems.
Data Source
AI summary
A system and method for a single use device for customer vehicle key programming. The device takes the form of a so-called dongle that plugs into the vehicle OBD. The customer uses an application on a smartphone to communicate with the vehicle through the dongle on one end and with the system servers on the other.