Integrated Differential Skid Shield Cover for Impact Protection

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Solution Overview

Problem

Off-road vehicles lack effective underbody protection for sensitive components, particularly the differential housing, which is vulnerable to impact damage and requires enhanced protection to prevent damage from debris and environmental factors.

Innovation Solution

A skid shield cover pan system is designed for the differential housing, featuring a skid shield fixedly connected to the differential cover with integral formation from a single sheet of metal, including mounting bosses, air inlets and outlets, and a debris exit hole, providing comprehensive protection and mounting solutions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a skid shield is added to protect the differential housing, then protection against impact damage is improved, but device complexity increases

Engineering Contradiction:
Improveprotection against impact damageVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the skid shield and differential cover into a single integrated component. The skid shield is formed as an integral part of the differential cover, eliminating the need for separate mounting operations and reducing the number of parts. This merging approach maintains comprehensive protection functionality while reducing assembly complexity and the number of fasteners required.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The differential cover is designed to serve multiple functions simultaneously: it acts as both the protective cover for the differential housing and as a skid shield for impact protection. The integrated structure provides both sealing/covering functions and protective shielding functions, reducing the overall number of components needed in the assembly.

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

2Ease of manufacture

If the skid shield is integrated with the differential cover, then ease of manufacture is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improveassembly simplicityVSAvoidintegral formation accuracy
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The skid shield and differential cover are formed as a single integrated component through stamping or forming operations on a single sheet of metal. This integration eliminates the need for separate assembly operations, mounting bosses, and fasteners, significantly simplifying the manufacturing process while maintaining production efficiency.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If mounting bosses are added to attach the skid shield, then reliability of attachment is improved, but device complexity increases

Engineering Contradiction:
Improveattachment reliabilityVSAvoidnumber of mounting components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The integration of the skid shield with the differential cover eliminates the need for separate mounting bosses and fasteners. The unified structure is attached to the differential housing as a single component, removing multiple mounting points and associated hardware while maintaining secure attachment through the integrated design.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20240383539A1Axle skid shield cover pan
Publication Date: 2024.11.21 GM GLOBAL TECHNOLOGY OPERATIONS LLC
  • US20240383539A1 patent drawing
  • US20240383539A1 patent drawing
  • US20240383539A1 patent drawing

AI summary

A skid shield cover for a differential housing includes a differential cover and a skid shield fixedly connected directly to the differential cover. The skid shield is configured to cover a bottom surface of the differential housing.