Variable Multiplexer Pinout Switching for Vehicle Bus Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The varying pinout configurations used by different vehicle manufacturers for communication buses, such as CAN bus, require multiple cables for compatibility, leading to inefficiencies in interfacing external devices with vehicles.
Innovation Solution
A variable multiplexer that can be electronically configured to match the specific pinout configuration of a vehicle, using techniques like Vehicle Identification Number (VIN) lookup or checksum verification to determine the correct pinout, allowing compatibility with multiple vehicles using a single standardized cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cables are used to support different pinout configurations, then compatibility with various vehicle manufacturers is improved, but device complexity and inventory requirements increase
Solution Approach 1:
The cable assembly incorporates a multi-functional connector with multiple possible pinout configurations (e.g., OBDII, ISO 15118-20, manufacturer-specific configurations) within a single physical device. The connector can be electronically reconfigured via a configuration module to match different vehicle requirements, eliminating the need for multiple dedicated cables while maintaining compatibility across various vehicle manufacturers and standards
Solution Approach 2:
The pinout configuration of the connector is made dynamic and changeable rather than fixed. A configuration module allows the pinout to be electronically reconfigured based on the detected vehicle type or manually selected by the user. This dynamic adaptability enables a single cable to serve multiple functions that previously required multiple static cables
2Device complexity
If a single standardized cable is used, then device simplicity and inventory reduction are improved, but compatibility with varying pinout configurations deteriorates
Solution Approach 1:
The system incorporates a detection mechanism that automatically identifies the vehicle type and its specific pinout configuration requirements. Based on this feedback, the configuration module automatically configures the connector's pinout to match the detected vehicle, enabling a single standardized cable to adapt to various pinout configurations without manual intervention or sacrificing compatibility
Solution Approach 2:
The electrical connection parameters of the connector (specifically the pinout configuration mapping) are made changeable through electronic reconfiguration. The configuration module alters the electrical connectivity parameters to match different vehicle standards, allowing a single physical cable to present different logical configurations as needed for compatibility with various vehicles
Data Source
AI summary
Disclosed are systems, methods, and non-transitory computer-readable media for a variable multiplexer for vehicle communication bus compatibility. A device includes a variable multiplexer that can be electronically configured to a desired pinout configuration to provide compatibility with multiple vehicles. For example, the variable multiplexer may be electronically configured based on a pinout configuration used by the vehicle to connect pins in the device to the corresponding pins on the data link connector that provide the same specified function. The device may therefore use a single standardized cable with vehicles using a variety of pinout configurations.