OBD-II Module Wireless Smartphone Infotainment Integration
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Solution Overview
Problem
Existing vehicle systems lack seamless integration with modern smartphones and wireless RF technology, requiring new vehicle purchases for advanced connectivity features and involving costly custom engineering and professional installations for aftermarket infotainment upgrades.
Innovation Solution
An OBD-II module with a data bus interface, digital interface connector, and RF transceivers that can connect to a vehicle's OBD-II port, enabling power draw and electronic communication, and a radio/infotainment interface device with connectors for audio and FM signals, allowing integration with existing vehicle systems without special tools or training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If aftermarket infotainment systems are installed in older vehicles, then wireless connectivity features are added, but installation cost and complexity increase due to custom engineering requirements
Solution Approach 1:
The system uses a universal OBD-II interface that connects to all vehicles manufactured after 1996, eliminating the need for vehicle-specific custom engineering. The single interface design allows the same device to be installed in any compatible vehicle without modification, reducing installation complexity while maintaining wireless connectivity functionality.
Solution Approach 2:
The OBD-II module serves as an intermediary device that bridges modern smartphones and older vehicle infotainment systems. By inserting into the standard OBD-II port, it mediates between contemporary wireless technology and legacy vehicle electronics, enabling connectivity without requiring complex integration work.
2Reliability
If professional installation services are used for aftermarket infotainment systems, then proper integration is achieved, but installation cost increases
Solution Approach 1:
The system is designed for self-installation by connecting directly to the OBD-II port, which is easily accessible in all vehicles. The plug-and-play design eliminates the need for professional technicians, allowing vehicle owners to install the system themselves, thereby reducing installation costs while maintaining reliable integration through standardized connections.
3Adaptability or versatility
If new vehicles are purchased to obtain advanced connectivity features, then wireless connectivity is available, but economic cost increases
Solution Approach 1:
The invention extracts the essential wireless connectivity functionality from expensive new vehicle packages and delivers it as a standalone aftermarket add-on. By separating this feature from the complete vehicle purchase, consumers can obtain advanced connectivity in older vehicles without paying the premium associated with new vehicle pricing.
4Adaptability or versatility
If manual FM tuning is required for aftermarket systems, then wireless connectivity is provided, but user convenience decreases and time is lost
Solution Approach 1:
The system automatically performs frequency scanning and station memory setup before the user needs to use it. By pre-configuring the FM transmitter frequencies and storing station information, the system eliminates the need for manual tuning operations, significantly improving user convenience and saving time during actual use.
Data Source
AI summary
An OBD module for communicating with a vehicle radio/infotainment system. The OBD module includes a controller, a data bus interface that is configured to draw power from and electronically communicate with a vehicle OBD-II data port and a digital interface connector. The OBD module can be formed from two separate components, including a transceiver module and an interface module, that are in communication with each other. The transceiver module can be located remotely from the interface module. The OBD module can include a graphic equalizer to enhance the sound quality of the input source. The OBD module can also be configured to interrupt playback to play a substitute message as is desired.