Front-Side Control Device Port for Cockpit Cable Harness Optimization

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Solution Overview

Problem

The existing installation method for multimedia control devices in motor vehicles requires a longer cable harness, leading to inefficient use of space in the cockpit region and constraints on design flexibility, as the cables need to be connected at the rear side before the device can be installed, resulting in excess cable length and limited design freedom.

Innovation Solution

The control device is positioned with a port facing the interior of the vehicle, allowing the cable harness to be connected at the front side, eliminating the need for excess cable length and enabling more flexible installation options, including the ability to mount the device further forward and utilize space previously occupied by excess cable.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the cable harness is connected at the rear side of the control device during installation, then the control device can be installed in the traditional position, but the cable harness becomes excessively long and occupies unnecessary space

Engineering Contradiction:
Improveinstallation processVSAvoidspace occupied by excess cable
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

The patent inverts the traditional installation sequence by connecting the cable harness at the front side of the control device (port on front side) instead of the rear side. This reversal allows the cable to be routed directly to its destination without creating excess length, thereby eliminating the need to reserve space for unused cable while maintaining installation feasibility.

Inventive Principle:
Principle #13The other way round (Inversion)

2Adaptability or versatility

If the cable harness is made long enough to reach from the rear side connection point, then the control device can be installed, but the excess cable length creates design constraints and reduces cockpit space utilization

Engineering Contradiction:
Improvedesign freedomVSAvoidspace reserved for excess cable
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

By inverting the connection approach to use a front-side port, the cable harness length is optimized to match the actual routing distance. This eliminates the need to accommodate excess cable in the cockpit design, thereby increasing design freedom and improving space utilization without compromising installation adaptability.

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If the control device is installed with rear-side cable connection, then traditional installation methods can be used, but the excess cable length increases the required installation volume

Engineering Contradiction:
Improveinstallation methodVSAvoidinstallation volume
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent maintains ease of operation by providing a straightforward front-side connection method that simplifies the installation process. By connecting the cable harness at the front side during module pre-assembly, the installation volume is reduced as no additional space is needed to accommodate excess cable, thereby resolving the contradiction between operational ease and volume requirements.

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS10532707B2Motor vehicle and method for producing a motor vehicle
Publication Date: 2020.01.14 BAYERISCHE MOTOREN WERKE AG
  • US10532707B2 patent drawing
  • US10532707B2 patent drawing
  • US10532707B2 patent drawing

AI summary

A motor vehicle has a control device which is arranged in a cockpit module and has a cable harness, which includes at least one data and/or power cable, for connecting the control device to an on-board electrical system of the motor vehicle. The control device has at least one connection for making electrical contact with the cable harness. An improved utilization of the available installation space in the cockpit region and a shortening of the requisite length of the cable harness is obtained by the connection of the control device being arranged on a side of the control device which faces an interior of the motor vehicle.