Trailer Brake Gain Warning Using Braking Utilization Feedback
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Solution Overview
Problem
Conventional systems fail to alert drivers when the trailer brake gain is incorrect, leading to potential safety issues with increased stopping distances and reduced trailer tire life.
Innovation Solution
A vehicle system that includes sensors and a control module to continuously monitor trailer brake gain, comparing actual and optimum braking utilization factors, and generates alerts when a significant deviation is detected, prompting the driver to adjust the gain manually or run an automatic scaling test.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If trailer brake gain is set manually by driver, then ease of operation is improved, but reliability deteriorates due to potential incorrect settings
Solution Approach 1:
The system continuously monitors braking parameters and compares actual braking utilization against expected ranges, providing feedback to the driver when the trailer brake gain is incorrectly set. This feedback loop maintains reliability by alerting drivers to adjustment needs without removing manual control.
Solution Approach 2:
The system performs self-diagnosis by automatically calculating braking utilization factors and detecting mismatches between expected and actual braking behavior, eliminating the need for separate diagnostic tools or expert intervention while maintaining system reliability.
2Reliability
If trailer brake gain is adjusted incorrectly, then stopping distance increases, but if automatic adjustment is implemented, device complexity increases
Solution Approach 1:
The system uses feedback from existing sensors to detect braking utilization mismatches and alerts the driver to adjust the gain, achieving improved stopping distance without adding complex automatic adjustment mechanisms.
Solution Approach 2:
The control module acts as an intermediary that processes data from existing sensors and communicates braking gain issues to the driver, avoiding the need for complex automatic adjustment hardware while still improving stopping distance through driver awareness.
3Reliability
If trailer brake gain monitoring is added, then reliability is improved, but device complexity increases
Solution Approach 1:
The control module performs multiple functions including existing engine management tasks plus the additional function of monitoring braking utilization and detecting trailer brake gain issues, achieving improved reliability without adding dedicated hardware.
Solution Approach 2:
The system uses its existing computational resources and sensor data to perform self-diagnosis of braking gain correctness, eliminating the need for separate monitoring hardware while improving braking safety through continuous analysis.
Data Source
AI summary
A vehicle system includes one or more sensors and a control module. The control module is configured to receive one or more vehicle parameters, calculate an actual braking utilization factor based on the received vehicle parameters and an estimated vehicle parameter, calculate an optimum braking utilization factor based on the estimated vehicle parameter and an estimated trailer parameter, compare the optimum braking utilization factor and the actual braking utilization factor, and in response to a difference between the optimum braking utilization factor and the actual braking utilization factor being greater than a defined threshold, generate an alert signal to notify the driver of the vehicle that the trailer brake gain for the trailer hitched to the vehicle should be adjusted. Other example vehicle systems and methods for notifying a driver that a trailer brake gain should be adjusted are also disclosed.