Universal SWC Interface for Vehicle Bus Signal Translation
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Solution Overview
Problem
Existing aftermarket stereos lack the functionality to interface and communicate with vehicle buses, leading to the loss of factory-installed module functionalities when replacing the factory stereo, as they are not universally compatible with various vehicle bus types, resulting in incomplete or crippled functionality of components like audio amplifiers, navigation, and HVAC controls.
Innovation Solution
A universal SWC interface that automatically detects steering wheel control signals and configures itself to transmit them to aftermarket components, while also detecting and configuring with vehicle buses and aftermarket components, enabling a "plug-and-play" installation process and retaining factory module functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a universal SWC interface with automatic detection is implemented, then ease of operation and adaptability improve, but device complexity increases
Solution Approach 1:
The interface automatically detects the vehicle bus type and configures itself without requiring manual programming by the installer. The system performs self-diagnosis and self-configuration upon installation, eliminating the need for lengthy programming sequences and making the installation process as simple as plugging in the device.
Solution Approach 2:
The interface is designed to work with multiple vehicle bus types (CAN, LIN, K-BUS, J1850) and various aftermarket components through a single universal device. This multi-functionality allows one interface to replace multiple specialized interfaces, improving ease of operation while managing complexity through standardized protocols.
2Loss of time
If automatic detection and configuration is implemented, then installation time is reduced, but processing requirements and device complexity increase
Solution Approach 1:
The interface performs automatic detection and configuration actions immediately upon installation without requiring separate programming steps. The system proactively identifies the vehicle bus type and configures itself in real-time, eliminating the time-consuming manual programming process that previously required installers to follow lengthy sequences.
Solution Approach 2:
The patent replaces manual mechanical programming operations with electronic automatic detection and configuration systems. Instead of requiring physical connection of specific wires based on charts and manual button sequences, the system uses electronic communication protocols to automatically identify and configure the appropriate connections.
3Adaptability or versatility
If the interface is designed to work with multiple vehicle bus types, then adaptability improves, but device complexity and difficulty of manufacture increase
Solution Approach 1:
The interface incorporates support for multiple vehicle bus types (CAN, LIN, K-BUS, J1850) within a single device design. This universality is achieved through integrated detection capabilities that automatically identify the bus type and configure the interface accordingly, allowing one device to replace multiple specialized interfaces.
Solution Approach 2:
The interface dynamically changes its operational parameters based on the detected vehicle bus type. The system adjusts communication protocols, data formats, and configuration settings automatically according to the identified bus type, enabling adaptability without requiring multiple fixed-design interfaces.
4Ease of manufacture
If manual wire selection and programming is required, then manufacturing simplicity is maintained, but ease of operation and reliability deteriorate
Solution Approach 1:
The interface performs automatic detection and configuration without requiring manual wire selection or programming by the installer. The system self-configures upon installation, eliminating the need for installers to consult charts and perform lengthy programming sequences, thereby dramatically improving ease of operation while maintaining manufacturing simplicity.
5Device complexity
If the interface is designed with limited manufacturer compatibility, then device complexity is reduced, but adaptability and versatility worsen
Solution Approach 1:
The interface is designed to work with aftermarket components from multiple manufacturers through standardized communication protocols. By implementing universal support for various bus types and configuration methods, the interface achieves broad compatibility without significantly increasing device complexity, as the underlying architecture handles different protocols through automatic detection and adaptation.
Data Source
AI summary
An interface and corresponding method, where the interface is connected via a first connection to a factory data bus of a vehicle which transports signals according to a first data format, and further connected via a second connection to a data channel of the aftermarket component which transports signals according to a second data format. The interface identifies a factory data bus type corresponding to the factory data bus, out of a plurality of potential factory data bus types. The interface receives digital signals from the aftermarket component via the second connection, the digital signals being in the second data format which corresponds to the aftermarket component. The interface translates the digital signals into the first data format which corresponds to the identified factory bus type. The interface transmits the translated digital signals in the first data format to the vehicle via the first connection.