Front Perception Module Layout for Work Vehicle Heat Dissipation
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Solution Overview
Problem
Existing work vehicle perception systems, particularly those using stereoscopic camera assemblies, face challenges with high visual processing demands and associated thermal dissipation, which existing integration schemes fail to adequately address, leading to inefficiencies and potential damage from heat buildup.
Innovation Solution
The implementation of a front perception module integrated with a front ballast system on a work vehicle, featuring a laterally-extending hanger bracket that supports removable ballast weights and a module housing with strategically positioned stereoscopic camera assemblies and airflow paths for efficient heat dissipation, including an inverted VPU assembly with a cooling fin array and ramped flow guidance surface, leveraging the radiator fan for enhanced thermal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If stereoscopic camera assemblies are used for environmental depth perception, then measurement precision and resolution are improved, but thermal dissipation becomes problematic due to high visual processing demands
Solution Approach 1:
The perception module is integrated with the front ballast system, merging the EDP sensor housing with the ballast weight support structure. This combination allows the ballast weights to serve as thermal mass for heat dissipation while maintaining structural support functions, directly addressing the thermal management challenge of high-resolution stereoscopic camera systems.
Solution Approach 2:
The housing structure acts as an intermediary between the heat-generating EDP sensors and the environment. It provides thermal pathways and dissipation mechanisms that manage heat from the high-resolution cameras without compromising their measurement precision or requiring active cooling systems.
2Reliability
If EDP sensor systems are integrated onto the work vehicle, then navigation and obstacle detection capabilities are improved, but structural integration complexity increases
Solution Approach 1:
The front ballast system is designed to serve multiple functions: it provides structural support for the EDP perception module, supports removable ballast weights for weight adjustment, and facilitates thermal dissipation. This multi-functionality reduces integration complexity by combining what would otherwise be separate systems.
Solution Approach 2:
The perception module is designed as a separable, modular unit that can be independently mounted to or removed from the ballast system. This segmentation allows for easier installation, maintenance, and adaptation without requiring complex integrated designs, thereby improving reliability while managing structural complexity.
3Stability of the object's composition
If ballast weights are positioned for optimal weight distribution, then vehicle stability is improved, but access and installation difficulty increase
Solution Approach 1:
The ballast weights are designed to be removable and repositionable on the hanger bracket, transforming a static weight distribution system into a dynamic one. This allows optimal weight distribution to be achieved and adjusted as needed, while maintaining ease of access and installation through simple attachment mechanisms.
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 configuration provides robust mechanical protection, minimizes vibrational disturbances, and achieves efficient heat dissipation, prolonging the lifespan of EDP sensor systems while maintaining optimal performance without active cooling mechanisms, thus enhancing the operational reliability and durability of work vehicle perception systems.
Implementation Method 1
an inverted VPU assembly with a cooling fin array and ramped flow guidance surface, leveraging the radiator fan for enhanced thermal performance
Implementation Method 2
achieves efficient heat dissipation, prolonging the lifespan of EDP sensor systems
Data Source
AI summary
A front perception module is utilized in conjunction with a front ballast system, which is included in a work vehicle and which has a laterally-extending hanger bracket supporting a number of removable ballast weights. In various embodiments, the front perception module includes an environmental depth perception (EDP) sensor system including a first EDP device having a field of view (FOV) encompassing an environmental region forward of the work vehicle, a mounting base attached to the work vehicle, and a front module housing containing the EDP sensor system and joined to the work vehicle through the mounting base. The front module housing is positioned over and vertically spaced from the laterally-extending hanger bracket in a manner enabling positioning of the removable ballast weights beneath the front module housing.