Vehicle-Trailer Message Identification Using Wired Feedback
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Solution Overview
Problem
Current systems for communication between a transportation vehicle and a trailer lack an effective method to identify messages from the trailer among multiple received messages, which is crucial for trailer assist systems to ensure safe maneuvering.
Innovation Solution
The proposed solution involves differentiating trailer messages based on their content and time of reception, correlating the trailer's motion and position with the transportation vehicle's, and using a request-response mechanism via a wired connection to reliably identify messages from the trailer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless message reception from multiple traffic participants is implemented, then communication capability is improved, but message identification reliability deteriorates
Solution Approach 1:
The system uses a request-response mechanism where the transportation vehicle sends a request message through the wired connection and the trailer responds with a confirmation message. This feedback loop allows the transportation vehicle to reliably identify messages from the trailer among multiple received messages by correlating the response with the corresponding request.
Solution Approach 2:
The wired connection between the transportation vehicle and trailer serves as an intermediary channel for sending request messages. This dedicated communication path enables the transportation vehicle to initiate identification sequences and receive confirmations, distinguishing trailer messages from other wireless communications.
2Reliability
If trailer message identification is implemented, then trailer assist system safety is improved, but communication system complexity increases
Solution Approach 1:
The communication system is segmented into two distinct channels: a wired connection for request/confirmation messages and a wireless channel for environmental data. This segmentation allows the identification function to operate through a dedicated path without interfering with the main data transmission, reducing overall system complexity.
Solution Approach 2:
The transportation vehicle sends a request message through the wired connection before receiving environmental data wirelessly. This preliminary action establishes a correlation between the request and subsequent trailer messages, enabling automatic identification without requiring complex real-time analysis of incoming data streams.
Data Source
AI summary
A computer program, a communication circuit, a transportation vehicle, a trailer, and methods for communication between a transportation vehicle and a trailer. The method for the transportation vehicle includes receiving a message from one or more traffic participants, determining whether the respective traffic participant is attached to the transportation vehicle using the message, and associating the message to the trailer in response to determining that the respective traffic participant is attached to the transportation vehicle.