J2534 Pass-Thru Diagnostic Device for Multi-Protocol Vehicle Systems
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Solution Overview
Problem
Automotive repair facilities face challenges in diagnosing and programming the electronic systems of vehicles due to varying computer-based systems across different makes and models, requiring adaptable diagnostic tools that can communicate effectively with diverse vehicle protocols.
Innovation Solution
A portable vehicle diagnostic device featuring a tablet computer and a separate J2534 pass-thru circuit board, connected via a USB cable, which converts vehicle data signals and transmits them for diagnosis and programming, enabling compatibility with multiple vehicle models and allowing remote diagnostic capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate J2534 pass-thru circuit board is used to ensure compatibility with various vehicle makes and models, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent combines the tablet computer and J2534 pass-thru circuit board into a single integrated housing, merging two separate diagnostic components into one unified device that maintains compatibility across multiple vehicle platforms while simplifying the overall system architecture
Solution Approach 2:
The integrated device serves multiple functions: the tablet computer provides the user interface and processing capabilities, while the J2534 circuit board handles vehicle-specific protocol conversions, enabling the single device to work with various vehicle makes and models through standardized interfaces
2Ease of operation
If a portable integrated design is used to improve convenience and portability, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent integrates the tablet computer and J2534 circuit board within a common portable housing, combining what would traditionally be separate desktop or benchtop components into a single handheld device that can be easily transported between vehicles and repair locations
3Adaptability or versatility
If signal conversion capabilities are added to support multiple vehicle protocols, then adaptability is improved, but device complexity increases
Solution Approach 1:
The J2534 pass-thru circuit board serves as an intermediary component that translates between various vehicle-specific communication protocols and standardized diagnostic interfaces, enabling protocol compatibility without requiring the entire system to be redesigned for each vehicle type
Data Source
AI summary
A vehicle diagnostic device for use in diagnosing, scanning and programming an electrical system of a vehicle having a housing, a computer with a screen disposed within the housing with the screen being disposed at an opening of the housing. The vehicle diagnostic device further includes a circuit board configured to operate as a SAE J2534 pass-thru device and disposed within the housing, with the circuit board including a multi-pin connector disposed at an aperture of the housing. A cable connects the computer and circuit board for communications there between. The circuit board is configured to receive vehicle data signals from a vehicle via the connector and convert the vehicle data signals for transmission to the computer via the cable. The computer is further configured to transmit signals to the circuit board via the cable for conversion by the circuit board to vehicle data signals for transmission via the connector to the vehicle.


