Vehicle Pedal Rotation Detection Device Cover

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Solution Overview

Problem

Existing rotation detection devices for vehicle pedals lack protection from impacts and dust, and are not robust enough to maintain the integrity of the moving parts during assembly, handling, transport, and storage.

Innovation Solution

A rotation detection device with a cover that protects the movable part from impacts and dust, and guides and retains it within a housing, ensuring axial and radial alignment, thereby enhancing the device's compactness and robustness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the movable first part is left exposed without a cover, then the device structure remains simple and compact, but the first part is vulnerable to impacts and dust during assembly, handling, transport, and storage

Engineering Contradiction:
Improveprotection of movable partVSAvoiddevice structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A cover is introduced to protect the movable first part from impacts and dust during assembly, handling, transport, and storage. The cover acts as a protective shell that can be coupled to the stationary second part, enclosing the vulnerable movable components while allowing the device to remain relatively compact.

Inventive Principle:
Principle #30Flexible shells and thin films

2Manufacturing precision

If guide grooves are added to the cover for guiding the first part, then the alignment precision between first and second parts is improved, but the manufacturing complexity of the cover increases

Engineering Contradiction:
Improvealignment precisionVSAvoidcover manufacturing
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The cover incorporates guide grooves that cooperate with guide protrusions on the movable first part. These grooves provide mechanical guidance during assembly, ensuring proper alignment between the movable and stationary parts. The grooves are integrated into the cover structure, providing guidance functionality without requiring separate guiding components.

Inventive Principle:
Principle #30Flexible shells and thin films

3Stability of the object's composition

If the cover is designed to retain the first part in the housing, then the stability of the device during handling and transport is improved, but the device complexity increases

Engineering Contradiction:
Improvedevice stabilityVSAvoiddevice structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The cover serves multiple functions: it protects the movable first part from impacts, provides dust protection, guides the first part during assembly through integrated guide grooves, and retains the first part within the housing of the stationary second part. This multi-functional design improves stability during handling and transport while minimizing the increase in device complexity by combining multiple functions into a single component.

Inventive Principle:
Principle #30Flexible shells and thin films

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 provides a more compact and robust rotation detection device that effectively protects the moving parts from damage and maintains their alignment, ensuring reliable operation and ease of assembly, handling, and storage.

Implementation Method 1

a magnetic field sensing component arranged in the first or in the second part and a magnetic element arranged in that part of the first or the second part that does not comprise the magnetic field sensing component. The magnetic field sensing component generates an electric signal originated from the magnetic interaction between the first and the second part when the first and the second part are moving in relation to each other.

Methodology Applied
Scientific EffectMagnetic interaction: Magnetic Field

Data Source

PatentEP3882739B1Rotation detection device and vehicle pedal arrangement comprising said rotation detection device
Publication Date: 2022.04.20 BATZ SCOOP
  • EP3882739B1 patent drawingFigure 1
  • EP3882739B1 patent drawingFigure 2
  • EP3882739B1 patent drawingFigure 3

AI summary

Rotation detection device (1) for the detection of the rotation of a vehicle pedal comprising a pedal shaft, the pedal being rotatable around an axis of rotation, the rotation detection device (1) comprising a movable first part (10), which is configured to rotate around the axis of rotation together with the pedal, a stationary second part (12), a magnetic field sensing component (16) arranged in the first (10) or in the second part (12) and a magnetic element (14) arranged in that part of the first or the second part (10, 12) that does not comprise the magnetic field sensing component (16). The first part (10) is coupled to the second part (12) so that the motion of the first part (10) is controlled in relation to the second part (12). The rotation detection device (1) further comprises a cover (20) coupled to the second part (12), the cover (20) and the second part (12) guiding the first part (10) in an axial direction and in a radial direction.