ECU Cooling Manifold Layout for Multi-Unit Cab Heat Control
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Solution Overview
Problem
In vehicles, particularly heavy-duty ones, the increasing number of electronic control units inside the cab generates excessive heat, which current ventilation systems struggle to manage effectively, especially when multiple units are present.
Innovation Solution
A cooling system comprising an inlet manifold with air ducts and outlets that direct airflow directly to each electrical control unit, powered by a fan located outside the electrical center for efficient cooling and maintenance access, with optional air outlets for windshield demisting/defrosting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple electronic control units are installed inside the cab to increase vehicle performance and features, then the vehicle functionality is improved, but the heat generation increases and current ventilation systems cannot effectively cool all units
Solution Approach 1:
The ventilation system is segmented into multiple independent air outlets, each directed at specific electronic control units. Instead of using a single general ventilation source, the system divides the cooling function into targeted segments that can individually address heat generation at each control unit location.
2Temperature
If fans are integrated inside each electronic control unit for cooling, then the cooling effectiveness is improved, but the maintenance complexity and device complexity increase
Solution Approach 1:
The fan component is extracted from the electronic control units and relocated to a centralized position outside the electrical center. This extraction simplifies the control units themselves while maintaining effective cooling through the redirected airflow system with multiple air outlets.
3Device complexity
If a single fan is used to ventilate multiple electronic control units, then the device complexity is reduced, but the cooling effectiveness and airflow directionality deteriorate
Solution Approach 1:
An inlet manifold is introduced as an intermediary component between the single fan and the multiple electronic control units. The manifold distributes airflow through multiple air outlets, enabling a single fan to effectively cool multiple control units with improved airflow directionality compared to direct ventilation.
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 system ensures effective cooling of multiple electrical control units while allowing for easier maintenance and utilizing residual air for windshield demisting or defrosting, enhancing airflow directionality and efficiency.
Implementation Method 1
a fan configured to suck an air from the vehicle into the air inlet and to drive the plurality of air flows
Implementation Method 2
each air flow of the plurality of air flows flows directly on one of the electrical control units or directly between two adjacent electrical control units
Data Source
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Figure 5
AI summary
The invention relates to a system for refreshing a plurality of electrical control units (ECU1, ECU2, ECU3, ECU4) of a vehicle, characterized in that the system comprises an inlet manifold (IM) comprising an air inlet (Al) and a plurality of air outlets (AO1, AO2, AO3, AO4, AO5), the inlet manifold (IM) further comprising an air duct configured to provide a plurality of air flows (AF1, AF2, AF3, AF4, AF5) through the plurality of air outlets (AO1, AO2, AO3, AO4, AO5), so that each air flow of the plurality of air flows (AF1, AF2, AF3, AF4, AF5) flows directly on one of the electrical control units (ECU1, ECU2, ECU3, ECU4) or directly between two adjacent electrical control units, of the plurality of electrical control units (ECU1, ECU2, ECU3, ECU4), the system further comprising a fan (FA) configured to suck an air from the vehicle into the air inlet (Al) and to drive the plurality of air flows (AF1, AF2, AF3, AF4, AF5).