Electromechanical Brake Control for Low-Energy Braking Feedback

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Solution Overview

Problem

In electromechanical brake systems, drivers cannot intuitively feel abnormalities in braking performance due to insufficient energy levels, which affects driving safety and energy consumption.

Innovation Solution

An electromechanical brake system that includes a power diagnostic module to detect energy levels and adjust braking performance based on thresholds, outputting warnings and enabling automatic stopping when energy levels are critically low, ensuring timely adjustments and intuitive feedback to the driver.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the electromechanical brake system uses an electric power source to generate braking force, then the braking ability is enhanced, but the driver cannot intuitively feel the abnormality when energy level is insufficient

Engineering Contradiction:
Improvebraking forceVSAvoiddriver feedback on system abnormality
Core Design Contradiction:
ForceVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the controller monitors the actual energy level of the electric power source and adjusts the braking force accordingly. When energy level is insufficient, the controller reduces braking force and provides feedback to the driver through the brake system, enabling the driver to intuitively perceive the abnormality and system state.

Inventive Principle:
Principle #23Feedback

2Productivity

If the electric brake device maintains full braking force, then braking performance is optimized, but unnecessary energy consumption occurs when energy level is low

Engineering Contradiction:
Improvebraking performanceVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies dynamic adjustment of braking force based on the actual energy level of the electric power source. The controller continuously monitors energy availability and dynamically adapts the braking force output, reducing braking force when energy is insufficient and maintaining full performance when energy is adequate, thus optimizing the balance between braking performance and energy consumption.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the brake system provides full braking force continuously, then braking reliability is maximized, but energy depletes faster affecting overall system durability

Engineering Contradiction:
Improvebraking reliabilityVSAvoidenergy usage rate
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the operating parameters of the brake system by adjusting braking force according to the actual energy level of the power source. This parameter adaptation ensures that the system maintains reliable braking performance within available energy constraints, preventing energy depletion while preserving braking reliability during normal operation.

Inventive Principle:
Principle #35Parameter changes

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 improves driving safety by providing intuitive braking feedback and conserving energy by adjusting braking performance and alerting drivers to potential issues, thus protecting the brake system from unnecessary energy consumption.

Implementation Method 1

a motor for generating a braking force

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 2

drive brake pads against the brake disc for frictionally resisting its rotation

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4028295B1Electromechanical brake system and control method thereof
Publication Date: 2024.07.17 HALDEX AB
  • EP4028295B1 patent drawingFigure 1
  • EP4028295B1 patent drawingFigure 2
  • EP4028295B1 patent drawingFigure 3

AI summary

The present invention relates to an electromechanical brake system (7) and a control method of the electromechanical brake system (7). The electromechanical brake system (7) comprises an electric power source and at least one electric brake device powered by the electric power source to generate a braking force responsive to a braking demand, the electromechanical brake system (7) is configured to adjust braking performance of the electric brake device according to an actual energy level of the electric power source. The present invention can timely adjust the braking performance of the electric brake device, and promptly inform the driver of the braking situation, so that the driver can obtain an intuitive braking feeling during the driving process, thereby effectively improving the safety of the vehicle, and at the same time it saves the energy of the electric power source, and avoids unnecessary energy consumption, thereby playing a good role in protecting the electromechanical brake system (7).