Vehicle Door Battery Module With Detachable Emergency Power

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing motor vehicle flaps and doors rely on permanently installed energy storage units that cannot be easily replaced and are limited in their ability to supply energy to multiple actuators or locking mechanisms, particularly in emergency situations.

Innovation Solution

A detachable energy storage unit is integrated with a lighting unit and an electrically actuated opening element, allowing for modular installation and providing energy to both the lighting unit and other actuators via detachable electrical connections, ensuring continued operation even when disconnected from the vehicle's main power source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a permanently installed energy storage unit is used in the vehicle flap, then the energy supply for lighting and actuation is ensured, but the energy storage unit cannot be easily replaced and is limited in supplying energy to multiple actuators

Engineering Contradiction:
Improveenergy supply reliabilityVSAvoidenergy storage unit replaceability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The energy storage unit is designed as a separate, modular component that can be independently removed and replaced. It is electrically connected to the vehicle flap's control unit via a detachable electrical connection, allowing it to be segmented from the main vehicle electrical system while maintaining functional independence for emergency operations.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a permanently installed energy storage unit is used, then emergency power supply is provided, but it cannot supply energy to other actuators or locking mechanisms

Engineering Contradiction:
Improveemergency power supplyVSAvoidenergy supply versatility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The energy storage unit is designed with universal applicability to supply power to multiple different components within the vehicle flap. It can provide emergency energy not only to the lighting unit but also to actuating elements and locking mechanisms, making it a multi-functional power source that adapts to various emergency scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of manufacture

If conventional integrated battery power supply is used, then the lighting unit and locking mechanism are powered, but the system fails when electrical connection is interrupted or damaged

Engineering Contradiction:
Improvepower supply integrationVSAvoidsystem operation continuity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The energy storage unit serves as a pre-positioned backup power source that is activated when the main electrical connection fails. It provides beforehand cushioning against electrical connection interruptions or damage by maintaining power supply to critical components during emergency situations.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 solution enables easy replacement of the energy storage unit and provides emergency power to lighting and actuating elements, ensuring the door can be opened and locked even in power failures, enhancing safety and functionality.

Implementation Method 1

an energy storage unit arranged in the flap wing for supplying energy to at least the lighting unit

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Data Source

PatentEP4139169B1Motor vehicle door
Publication Date: 2025.12.31 KIEKERT AG
  • EP4139169B1 patent drawingFigure 1
  • EP4139169B1 patent drawingFigure 2

AI summary

The invention relates to a motor vehicle panel, in particular motor vehicle door which comprises a lighting unit (4) and an energy accumulator unit (3) arranged in the door leaf (2) for supplying energy to at least the lighting unit (4). According to the invention, the energy accumulator unit (3) is coupled to the lighting unit (4) via at least one detachable electric connection (8, 9, 12).