EMB Brake Mode Switching Using Pedal Input and Vibration Feedback

Solution Overview

Problem

Conventional methods for switching between different braking modes in vehicles are inconvenient, often requiring manual operation of physical buttons or navigation through touchscreen menus.

Innovation Solution

A device and method that utilize an electromechanical braking (EMB) system to automatically change braking modes based on vehicle state information, including brake pedal stroke, pressure, gear position, and road inclination, with intuitive notification through vibrations and audio/visual cues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional methods using physical buttons or touchscreen menus are used for switching braking modes, then the braking mode can be changed, but the operation becomes inconvenient and complex

Engineering Contradiction:

Improvebraking mode switching convenienceVSAvoidcontrol system complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The brake pedal itself serves as the control input for mode switching. The system automatically detects pedal stroke depth and duration to determine mode change requests, eliminating the need for separate control interfaces like buttons or touchscreens. This self-service approach simplifies operation while reducing control system complexity.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The brake pedal is assigned multiple functions: it serves both as the primary braking control and as the interface for braking mode selection. By making the existing brake pedal multi-functional, the system avoids adding separate control mechanisms, thereby improving ease of operation without increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If additional control interfaces like physical buttons or touchscreen menus are added for braking mode switching, then mode selection capability is enhanced, but device complexity and weight increase

Engineering Contradiction:

Improvebraking mode selection capabilityVSAvoidcontrol system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The brake pedal is assigned multiple functions: it serves both as the primary braking control and as the interface for braking mode selection. By making the existing brake pedal multi-functional, the system avoids adding separate control mechanisms, thereby improving ease of operation without increasing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The brake pedal itself serves as the control input for mode switching. The system automatically detects pedal stroke depth and duration to determine mode change requests, eliminating the need for separate control interfaces like buttons or touchscreens. This self-service approach simplifies operation while reducing control system complexity.

Inventive Principle:

Principle #25Self-service

3Loss of information

If the EMB device is used to generate vibrations for mode change notification, then user feedback is enhanced, but energy consumption increases

Engineering Contradiction:

Improvemode change notification effectivenessVSAvoidEMB device energy consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The EMB device generates vibrations in a periodic manner specifically for mode change notification rather than continuous operation. By using periodic, intermittent vibration signals only when needed for feedback, the system enhances user awareness of mode changes while minimizing unnecessary energy consumption during normal braking operations.

Inventive Principle:

Principle #19Periodic action

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

Enables convenient and intuitive switching between braking modes by sensing pedal inputs and road conditions, enhancing driving comfort and safety without additional cost or weight.

Implementation Method 1

an electromechanical braking (EMB) device configured to generate braking force on the vehicle

Methodology Applied

Scientific EffectElectromechanical conversion: Electromagnetic Induction

Implementation Method 2

an elastic force generation unit configured to generate elastic restorative force such that the braking force generation unit may move away from the brake disc

Methodology Applied

Scientific EffectElastic restorative force: Elasticity

Implementation Method 3

the braking mode changing unit generates vibrations using the EMB device

Methodology Applied

Scientific EffectMechanical vibration: Vibration

Data Source

PatentUS12539833B2Device for changing braking mode and method of changing braking mode

Publication Date: 2026.02.03 HYUNDAI MOTOR CO LTD

AI summary

A device for changing a braking mode provided in a vehicle including a plurality of braking modes includes a receiving unit configured to receive vehicle state information, a condition determination unit configured to determine whether conditions for preparation of changing the braking mode and conditions for changing the braking mode are satisfied, based on the vehicle state information, an electromechanical braking (EMB) device configured to generate braking force on a vehicle, and a braking mode changing unit configured to change a braking mode based on the determination of the condition determination unit, where, when the braking mode is changed, the braking mode changing unit generates vibrations using the EMB device.