Brake Motor Force Control Under High-Temperature Braking
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Solution Overview
Problem
Brake systems in vehicles experience performance degradation due to high temperatures during continuous braking, leading to insufficient brake force and potential loss of clamping ability, which can compromise driving safety.
Innovation Solution
A method and system that monitors and predicts brake motor temperatures using sensors, adjusting brake force output based on temperature data and driving conditions to prevent excessive heating and ensure safe braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If brake force is increased during continuous braking, then braking performance improves, but temperature of braking system increases leading to brake fade
Solution Approach 1:
The system continuously monitors temperature data from sensors in the braking system and uses this feedback to dynamically adjust brake force output. When temperature exceeds predetermined thresholds, the control algorithm automatically reduces brake force to prevent thermal degradation, creating a closed-loop control system that resolves the contradiction between maintaining brake force and controlling temperature.
Solution Approach 2:
The brake force control algorithm dynamically adjusts brake force based on real-time temperature conditions and driving patterns. The system transitions from static brake force application to dynamic modulation, varying brake force magnitude and duration according to thermal state, thereby preventing brake fade while maintaining adequate braking performance.
2Speed
If brake force is maintained at high levels, then stopping distance is reduced, but clamping ability is lost due to excessive heating
Solution Approach 1:
The system performs preliminary temperature assessment before applying high brake force and continuously monitors thermal state during braking. By predicting temperature rise based on current conditions and adjusting brake force proactively, the system prevents excessive heating that would lead to loss of clamping ability, rather than reacting after damage occurs.
Solution Approach 2:
Temperature sensors provide continuous feedback on the thermal state of braking components. The control algorithm uses this feedback to adjust brake force in real-time, reducing force when temperature approaches critical levels to maintain clamping ability and prevent brake fade, thus preserving reliability under high-performance conditions.
3Reliability
If temperature monitoring and control is implemented, then braking reliability improves, but system complexity increases
Solution Approach 1:
The braking system performs self-monitoring through temperature sensors and self-adjustment through the control algorithm, which automatically modulates brake force based on thermal conditions. This self-service capability improves reliability without requiring external intervention or complex manual control systems, as the system manages its own thermal state autonomously.
Solution Approach 2:
The system controls temperature by changing operational parameters (brake force magnitude, application duration, and frequency) rather than adding complex physical components. The control algorithm adjusts these parameters dynamically based on temperature data, achieving improved reliability through software-based parameter modulation rather than hardware complexity.
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
Effectively prevents brake fade by dynamically controlling brake force, ensuring safe vehicle operation even under high-temperature conditions, thereby enhancing driving safety.
Implementation Method 1
vehicles generate a brake force through a braking system and the braking system's temperature rises during braking
Data Source
AI summary
A brake force control method includes: obtaining temperature data of a braking system of a vehicle and driving data of the vehicle during braking of the vehicle; and controlling a brake force output from a brake motor in the braking system according to the temperature data and the driving data.