Active Brake Cooling Ducts With Vectoring Outlet

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Solution Overview

Problem

High-performance vehicles face reduced braking effectiveness due to brake pad overheating, leading to brake fade caused by brake pad glazing, which reduces the coefficient of friction and grip on the rotor.

Innovation Solution

An active brake cooling system with dynamic air ducts and outlet vectoring units that adapt to the movement of the brake assembly using vehicle sensors to direct airflow effectively, preventing misalignment and maintaining optimal brake temperature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fixed brake cooling ducts are used, then the system structure is simple, but the airflow cannot be effectively directed to the brake assembly when it moves during operation, reducing cooling effectiveness

Engineering Contradiction:
Improvebrake cooling effectivenessVSAvoidcooling system structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The brake cooling duct is designed with a movable outlet that can dynamically adjust its position and orientation to track the brake assembly's movement during vehicle operation. This dynamic configuration ensures continuous alignment between the cooling airflow and the brake assembly, maintaining effective cooling throughout suspension travel and wheel rotation cycles.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates sensors that detect the position of the brake assembly and provide feedback signals to control the outlet's movement. This closed-loop control enables the outlet to automatically adjust its position in real-time based on the actual location of the brake assembly, ensuring optimal cooling airflow direction under varying operating conditions.

Inventive Principle:
Principle #23Feedback

2Force

If heavy braking is applied, then braking force is increased, but brake pad temperature rises causing brake fade and reduced braking effectiveness

Engineering Contradiction:
Improvebraking forceVSAvoidbrake pad temperature
Core Design Contradiction:
ForceVSTemperature

Solution Approach 1:

The movable outlet system proactively directs cooling airflow to the brake assembly before excessive temperature buildup occurs. By continuously tracking brake position and maintaining optimal cooling airflow during braking operations, the system prevents thermal degradation and brake fade before they can develop, rather than attempting to cool overheated components.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the outlet is fixed in position, then the manufacturing and installation is simple, but misalignment occurs when the brake assembly moves during operation, reducing cooling performance

Engineering Contradiction:
Improvecooling performanceVSAvoidduct installation
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The brake cooling duct incorporates a movable outlet mechanism that can dynamically reposition itself to maintain alignment with the brake assembly during vehicle operation. This dynamic capability compensates for brake movement caused by suspension travel and wheel rotation, ensuring consistent cooling performance without requiring complex fixed positioning for every possible brake position.

Inventive Principle:
Principle #15Dynamics

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

The system effectively cools brake assemblies during operation, maintaining braking performance even under intense usage by dynamically directing airflow based on brake and suspension position, thus preventing brake fade.

Implementation Method 1

an outlet vectoring unit to vary a direction of airflow from the outlet toward a brake assembly for a wheel as the wheel moves during operation of a vehicle

Methodology Applied
Scientific EffectAirflow direction control:

Implementation Method 2

the first outlet having a first diverter to direct airflow received from the first air intake toward a first brake assembly of the first wheel as the first wheel moves during operation of the vehicle

Methodology Applied
Scientific EffectAirflow direction control:

Data Source

PatentUS10167915B2Active brake cooling ducts
Publication Date: 2019.01.01 FORD GLOBAL TECH LLC
  • US10167915B2 patent drawing
  • US10167915B2 patent drawing
  • US10167915B2 patent drawing

AI summary

A brake cooling system includes a brake cooling duct having an air intake and an outlet and an outlet vectoring unit to vary a direction of airflow from the outlet toward a brake assembly for a wheel as the wheel moves during operation of a vehicle.