Front Perception Module Layout for Passive Cooling on Work Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing work vehicle perception systems, particularly those using stereoscopic camera assemblies, face challenges with high visual processing demands and thermal dissipation, which existing integration schemes fail to adequately address, leading to inefficiencies and potential damage from heat buildup.
Innovation Solution
The integration of a front perception module with a laterally-extending hanger bracket and ballast system, which provides a rigid mounting for environmental depth perception sensors, including stereoscopic camera assemblies, and incorporates airflow paths for passive cooling, minimizing vibrational disturbances and exposure to debris while optimizing heat dissipation without active cooling mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If stereoscopic camera assemblies are used for environmental depth perception, then measurement precision is improved, but thermal dissipation becomes insufficient
Solution Approach 1:
The perception module is nested within the ballast assembly structure. The housing contains the EDP sensor system, and the ballast weights are positioned within the same structural envelope, creating a compact integrated unit that addresses both sensing precision and thermal management through shared structural boundaries
Solution Approach 2:
The housing acts as an intermediary thermal management structure between the heat-generating EDP sensors and the external environment. It incorporates thermal pathways and airflow channels that mediate heat transfer, allowing precise sensor operation while managing thermal dissipation
2Device complexity
If EDP sensor system is integrated with ballast assembly, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The ballast assembly serves multiple functions simultaneously: it provides weight for vehicle stability, structural mounting for the perception module, and a platform for sensor integration. This multi-functionality reduces overall device complexity by eliminating separate mounting structures
Solution Approach 2:
The perception module is designed as a separable unit that can be mounted to or removed from the ballast assembly. The EDP sensor system is contained within its own housing that interfaces with the ballast structure, allowing modular manufacturing and assembly while maintaining precise alignment through dedicated mounting features
3Device complexity
If passive cooling is implemented without active cooling mechanisms, then device complexity is reduced, but thermal dissipation efficiency decreases
Solution Approach 1:
The cooling system is designed to operate autonomously without active control mechanisms. The housing incorporates passive thermal pathways, conductive heat sinks, and natural convection channels that automatically manage heat dissipation based on temperature gradients, eliminating the need for fans or pumps
Solution Approach 2:
The heavy ballast weights, which might seem to impede cooling airflow, are positioned to actually enhance passive cooling by creating natural convection currents and providing thermal mass that absorbs heat during peak operation, converting the harmful heat into a beneficial thermal regulation mechanism
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 enhances sensor performance, reduces the risk of damage, and prolongs the lifespan of heat-generating components by effectively dissipating heat, ensuring optimal operation and comprehensive environmental coverage with a cumulative field of view approaching 360°.
Implementation Method 1
airflow paths for passive cooling
Implementation Method 2
effectively dissipating heat
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A front perception module (44, 236) is utilized in conjunction with a front ballast system (26, 234), which is included in a work vehicle (20, 232) and which has a laterally-extending hanger bracket (84, 238) supporting a number of removable ballast weights (90, 240). In various embodiments, the front perception module (44, 236) includes an environmental depth perception (EDP) sensor system (22, 196) including a first EDP device (52, 230) having a field of view (FOV) encompassing an environmental region forward of the work vehicle (20, 232), a mounting base (100, 102, 246) attached to the work vehicle (20, 232), and a front module housing (50, 248) containing the EDP sensor system (22, 196) and joined to the work vehicle (20, 232) through the mounting base (100, 102, 246). The front module housing (50, 248) is positioned over and vertically spaced from the laterally-extending hanger bracket (84, 238) in a manner enabling positioning of the removable ballast weights (90, 240) beneath the front module housing (50, 248).