Brake Controller Automatic Trailer Brake Type Detection
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Solution Overview
Problem
Current brake controllers lack the ability to automatically detect and adjust for trailers with hydraulic braking systems, requiring manual user input and lacking efficient connectivity testing.
Innovation Solution
A brake controller system that uses a processor to generate test signals, measure resistance, and apply pulse trains to determine the type of trailer brakes, automatically identifying connectivity and adjusting the transfer function based on operating conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If brake controllers manually detect trailer brake type, then device complexity is reduced, but ease of operation deteriorates due to requiring user intervention
Solution Approach 1:
The brake controller automatically performs connectivity tests and identifies trailer brake type without user intervention. The system self-configures by measuring electrical characteristics and determining whether electric or hydraulic brakes are connected, eliminating the need for manual detection while maintaining simple operation.
Solution Approach 2:
The system measures electrical resistance and other parameters to automatically distinguish between electric and hydraulic brake types. By monitoring changes in electrical characteristics during connectivity tests, the controller identifies brake type and adjusts its transfer function accordingly without requiring manual input.
2Productivity
If brake controllers automatically test connectivity, then productivity is improved, but device complexity increases due to additional testing mechanisms
Solution Approach 1:
The existing electrical connectivity testing circuitry is enhanced to serve multiple functions: it not only tests for basic connectivity but also measures electrical characteristics to identify brake type (electric vs. hydraulic). This multi-functional approach improves productivity by automating both connectivity verification and brake type detection without proportionally increasing device complexity.
Solution Approach 2:
The system performs automated connectivity tests and uses the measured electrical parameters as feedback to determine brake type. The controller continuously monitors resistance and other electrical characteristics, using this feedback to automatically configure the appropriate transfer function for controlling the identified brake type.
3Measurement precision
If brake controllers use manual selection for hydraulic brakes, then measurement precision is reduced, but device complexity is minimized
Solution Approach 1:
The manual selection mechanism is replaced with an automated electrical measurement system. The controller measures electrical resistance and other parameters to precisely identify whether electric or hydraulic brakes are connected, substituting the imprecise manual selection process with accurate electrical characterization that automatically determines brake type.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic detection and adjustment for trailers with hydraulic brakes, enhancing safety and reducing the likelihood of unsafe driving conditions by ensuring proper brake connectivity without user intervention.
Implementation Method 1
measuring resistance to determine whether the trailer brake system is connected
Data Source
AI summary
A brake controller system includes a brake controller that controls the brakes of a towed vehicle based on acceleration. The brake controller sends signals to the brakes of the towed vehicle. The brake controller sends signals to determine whether the trailer brakes are properly connected. The signals may include a pulse train. The pulse train charges hydraulic braking systems for resistive testing. The brake controller determines whether the brakes are connected.