Electromechanical Brake Anti-Collision Control in Neutral Parking

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Solution Overview

Problem

When vehicles are parked in neutral gear and pushed, there is a risk of collision due to insufficient visibility and lack of braking, leading to unintended movement and potential collisions with structures or other vehicles.

Innovation Solution

An anti-collision device using an electromechanical brake (EMB) with a distance detection system, movement detection, and an anti-collision control unit that operates in two modes: generating sound and vibrations or braking force based on detected distance and vehicle movement to prevent collisions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a neutrally parked vehicle is pushed to move it, then the vehicle can be relocated to secure space, but the vehicle may collide with surrounding structures or other parked vehicles due to insufficient visibility and lack of braking

Engineering Contradiction:

Improvevehicle mobilityVSAvoidcollision prevention

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The anti-collision control device activates the EMB braking device in advance when a pushing force is detected, generating braking force before collision occurs. The system detects push initiation through wheel speed changes and pre-activates braking to prevent unintended movement, resolving the contradiction between vehicle mobility and collision prevention.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors wheel speed, pushing force, and distance to surrounding structures, providing real-time feedback to the control device. This feedback loop enables dynamic adjustment of braking force to maintain vehicle mobility while preventing collisions, addressing the reliability concern.

Inventive Principle:

Principle #23Feedback

2Reliability

If the EMB braking device is activated continuously to prevent collisions, then collision risk is reduced, but power consumption increases

Engineering Contradiction:

Improvecollision preventionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The EMB braking device operates periodically rather than continuously - activating only when the control device detects push initiation through wheel speed changes or pushing force. This periodic activation maintains collision prevention reliability while significantly reducing power consumption during neutral parking periods.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system uses the vehicle's existing EMB infrastructure and power-assist mechanisms to provide anti-collision functionality, rather than requiring a separate continuous braking system. The control device intelligently determines when braking assistance is needed based on detected pushing forces, optimizing power usage.

Inventive Principle:

Principle #25Self-service

3Reliability

If the vehicle is equipped with a separate braking device for neutral parking, then collision prevention is improved, but device complexity increases

Engineering Contradiction:

Improvebraking capabilityVSAvoidsystem structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system utilizes the vehicle's existing EMB braking device for multiple functions - normal braking during operation and anti-collision braking during neutral parking. This multi-functionality eliminates the need for a separate braking system, reducing device complexity while maintaining braking capability for collision prevention.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The anti-collision control device merges the neutral parking safety function with the existing EMB braking system and power-assist mechanisms. By combining these functions into a unified control system that detects pushing forces and activates braking accordingly, the patent reduces overall system complexity while improving reliability.

Inventive Principle:

Principle #5Merging (Combining)

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 device effectively notifies the user of potential collisions and prevents them by generating sound or braking force, minimizing power consumption and reducing the risk of collisions during neutral parking.

Implementation Method 1

an EMB braking device configured to generate braking force in the vehicle

Methodology Applied

Scientific EffectElectromechanical brake:

Implementation Method 2

a distance detection device configured to detect a distance from a structure outside the vehicle

Methodology Applied

Scientific EffectDistance detection:

Implementation Method 3

a movement detection device detecting movement of the vehicle based on a wheel speed of each wheel

Methodology Applied

Scientific EffectWheel speed detection:

Data Source

PatentUS12472913B2Anti-collision device and anti-collision method for vehicle using electromechanical brake

Publication Date: 2025.11.18 HYUNDAI MOTOR CO LTD

AI summary

An anti-collision device for a vehicle utilizes an electromechanical brake (EMB). The anti-collision device is operable when the vehicle is parked in neutral, and may include a distance detection device for detecting a distance from a structure outside the vehicle, an EMB braking device for generating braking force in the vehicle, and an anti-collision control device for operating the EMB braking device in one of at least two anti-collision modes based on the distance detected by the distance detection device.