Brake-To-Steer Temperature Feedback for Consistent Lateral Response
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Solution Overview
Problem
Existing brake-to-steer systems do not adequately account for brake temperature variations, leading to inconsistent lateral response, excessive heat generation, and potential failure of brake hardware due to unregulated brake pressure, which compromises vehicle controllability and safety during maneuvers.
Innovation Solution
A method and computer program product that modifies brake-to-steer commands based on real-time brake temperature measurements or estimates, using temperature-dependent scalars to adjust brake pressure and torque coefficients, ensuring consistent brake torques and preventing overheating by implementing temperature thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If brake-to-steer systems apply unregulated brake pressure to improve lateral response, then lateral capability is enhanced, but brake temperature increases excessively leading to potential hardware failure
Solution Approach 1:
The system implements a feedback mechanism by continuously monitoring brake temperature through sensors and using this information to dynamically adjust brake pressure commands. The temperature data flows back to the controller which modifies subsequent brake-to-steer pressure applications to prevent overheating while maintaining lateral response capability.
Solution Approach 2:
The brake pressure application is made dynamic rather than static. The system continuously adapts brake pressure levels based on real-time temperature conditions, allowing optimal lateral response when brakes are cool and reducing pressure when temperature thresholds are approached, thereby resolving the contradiction between response speed and temperature control.
2Ease of operation
If brake pressure is increased to enhance lateral capability during evasive maneuvers, then vehicle controllability improves, but brake hardware reliability deteriorates due to excessive heat generation
Solution Approach 1:
Temperature feedback from brake sensors is used to dynamically adjust brake pressure commands during evasive maneuvers. When temperature approaches critical thresholds, the system automatically reduces brake pressure to prevent hardware failure, thereby maintaining vehicle controllability while protecting brake component reliability.
Solution Approach 2:
The system prepares for potential overheating by continuously monitoring brake temperature before critical failure occurs. By detecting temperature trends in advance, the system can proactively reduce brake pressure to prevent hardware failure, cushioning against the harmful effects of excessive heat before they compromise reliability.
3Temperature
If temperature monitoring and adjustment systems are implemented, then brake temperature control improves, but system complexity increases
Solution Approach 1:
The system uses feedback from existing brake temperature sensors to automatically adjust brake pressure, eliminating the need for complex predictive models or multiple additional sensors. This leverages available data to achieve temperature control with minimal added complexity.
Solution Approach 2:
The brake system essentially monitors and adjusts itself using temperature feedback. The controller automatically modifies brake pressure based on temperature readings without requiring external intervention or complex external control systems, allowing the system to self-regulate temperature while minimizing added complexity.
Data Source
AI summary
A number of variations are disclosed including a computer program product and method of modifying brake-to-steer brake pressure commands, based on brake temperature, in real time as well as to create temperature dependent powertrain control and temperature dependent brake cooling.