Trailer Braking ECU Wireless Pairing Automation
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Solution Overview
Problem
Large distribution depots with numerous standardized trailers face challenges in tracking and pairing trailers efficiently due to human error and high manual input, leading to logistical inefficiencies and additional costs.
Innovation Solution
A trailer electronic braking system with a braking ECU connected to a communication bus, capable of transmitting a trailer identifier and pairing with authorized devices via a wireless interface, such as 802.11, to streamline the pairing process between trailers and tractors, including features like MAC address detection and parking brake release codes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual checking and pairing of trailers is used, then human error is reduced through verification, but the operational speed and efficiency deteriorate due to high manual input and time-consuming processes
Solution Approach 1:
The patent replaces manual mechanical verification processes with an automated electronic identification system. The reader device automatically detects and reads the identification signal from the trailer's transponder or RFID tag, eliminating the need for manual checking while maintaining accuracy. This substitution of manual operations with automated electronic systems resolves the contradiction between reliability and productivity.
Solution Approach 2:
The patent introduces an intermediary identification system consisting of a transponder/RFID tag in the trailer and a reader device in the tractor. This intermediary automatic identification mechanism mediates between the trailer and tractor, enabling fast automated pairing while ensuring accuracy through electronic verification, thus resolving the contradiction between speed and reliability.
2Ease of manufacture
If standardized trailers with identical appearance are used, then manufacturing cost and maintenance are reduced, but the difficulty of detecting and measuring trailer identity worsens due to inability to visually distinguish trailers
Solution Approach 1:
The patent uses an electronic copy or representation of the trailer's identity through a transponder/RFID tag that contains unique identification data. Instead of relying on visual differentiation of standardized trailers, the system reads an electronic copy of the trailer's identity, allowing standardized physical design while maintaining easy identification through electronic means.
Solution Approach 2:
The patent replaces visual/mechanical identification methods with electronic detection. The reader device electronically detects and reads the identification signal from the trailer's transponder, substituting visual inspection with electronic sensing. This allows standardized trailers to be easily identified through electronic means without requiring visual differentiation.
3Adaptability or versatility
If hundreds of wireless systems are deployed in large depots, then coverage and availability of trailers are improved, but the complexity of the system worsens due to potential interference and confusion among multiple wireless signals
Solution Approach 1:
The patent employs feedback mechanisms where the reader device and transponder establish a directed communication channel. The system receives feedback confirmation when a trailer is successfully identified and paired, enabling the operator to verify the correct trailer is selected. This feedback loop simplifies the management of multiple wireless signals by providing clear confirmation of successful pairing.
Solution Approach 2:
The patent uses the transponder/RFID tag as an intermediary that establishes a specific communication channel between the reader device and individual trailer. This intermediary creates dedicated signal paths that prevent interference and confusion among multiple wireless systems, allowing the depot to handle hundreds of trailers without system complexity increasing proportionally.
Data Source
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AI summary
A trailer electronic braking system comprises a braking device capable of generating a braking force on a wheel on the trailer, a brake force into the brake cylinders being controllable by a braking ECU. The braking ECU is connected to a standards compliant communication bus on said trailer and is adapted to receive data inputs from sensors on the trailer. An interface to trailer electronics and a communications interface are also provided. The brake system is further adapted to transmit a trailer identifier such as an SSID, such that the trailer identifier can be paired with a further device, such as a mobile telephone associated with a tractor driver, the further device having previously been provided with the trailer identifier.