Air Guiding Apparatus Coupling Device for Motor Vehicle

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Solution Overview

Problem

Existing air guiding apparatuses for motor vehicles require separate drives for moving air guiding element sections transversely, increasing complexity, weight, and cost.

Innovation Solution

A coupling device with a piston guided in a cylinder and a rotary rocker acting via a cardan joint converts linear movement into rotational movement, allowing lateral air guiding element sections to move transversely without a dedicated drive, using a single drive to transfer the air guiding element between rest and operating positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If separate drives are used for moving lateral air guiding element sections transversely, then the air guiding element can be positioned accurately, but the device complexity, weight, and cost increase

Engineering Contradiction:

Improvepositioning accuracy of air guiding element sectionsVSAvoidnumber of separate drives

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines the drive functions by using a single drive mechanism that simultaneously performs both the longitudinal movement of the air guiding element and the transverse movement of the lateral sections through the coupling device with piston and rotary rocker, eliminating the need for separate drives

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single drive mechanism is designed to perform multiple functions: it drives the longitudinal movement of the air guiding element while simultaneously, through the coupling device, driving the transverse movement of the lateral air guiding element sections, making one drive unit serve multiple purposes

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate drives are used for lateral air guiding element section movement, then transverse positioning is reliable, but the weight of the air guiding apparatus increases

Engineering Contradiction:

Improvereliability of transverse movementVSAvoidweight of air guiding apparatus

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The patent merges the drive functions by using a single drive mechanism that simultaneously performs both the longitudinal movement of the air guiding element and the transverse movement of the lateral sections through the coupling device with piston and rotary rocker, eliminating the need for separate drives

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The coupling device with piston and rotary rocker is designed to automatically convert the rotational movement of the piston into the required transverse movement of the lateral air guiding element sections, allowing the system to self-convert motion types without requiring additional independent drive units

Inventive Principle:

Principle #25Self-service

3Ease of operation

If separate drives are used for lateral air guiding element section movement, then transverse movement is controlled precisely, but the cost of the air guiding apparatus increases

Engineering Contradiction:

Improvecontrol precision of transverse movementVSAvoidnumber of separate drives

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

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

This solution reduces structural complexity and costs by eliminating the need for a separate drive for lateral air guiding element section movement, achieving reliable transverse movement while maintaining a simplified mechanical design.

Implementation Method 1

a piston (30) which is guided in a cylinder (29) in such a way that the piston (30) carries out a rotational movement during a linear movement in the cylinder (29)

Methodology Applied

Scientific EffectMechanical energy conversion:

Implementation Method 2

a rotary rocker (32) which acts on the piston (30) via a cardan joint (31), configured to also carry out the rotational movement of the piston (30), and configured to convert the rotational movement of the piston (30) into the movement of the lateral air guiding element sections (23, 24)

Methodology Applied

Scientific EffectMechanical energy conversion:

Data Source

PatentUS10293871B2Air guiding apparatus for a motor vehicle

Publication Date: 2019.05.21 DR ING H C F PORSCHE AG

AI summary

An air guiding apparatus for a motor vehicle includes an air guiding element and a coupling device configured to positively couple movement of lateral air guiding element sections directed transversely with respect to a longitudinal direction of the vehicle to a movement of the air guiding element between a rest position and an operating position. The coupling device includes a piston configured to be guided in a cylinder in such a way that the piston carries out a rotational movement during a linear movement in the cylinder, and a rotary rocker configured to act on the piston via a cardan joint, configured to also carry out the rotational movement of the piston, and configured to convert the rotational movement of the piston into movement of the lateral air guiding element sections directed transversely with respect to the longitudinal direction of the motor vehicle.